8520 DustTrak Aerosol Monitor Operation And Service Manual TSI Dust Trak

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Model 8520 DUSTTRAK Aerosol Monitor Operation and Service Manual
Warranty
CONTENTS
Safety Information
Chapter 1
- Unpacking and Parts Identification
  - Unpacking the DustTrak Aerosol Monitor
  - Parts Identification for the DUSTTRAK Aerosol Monitor
Chapter 2
- Setting-Up
Chapter 3
- Operation
Chapter 4
- Maintenance
Chapter 5
- Troubleshooting
Appendix A
- Specifications
Appendix B
Index

Model 8520

DUSTTRAKTM Aerosol Monitor

TRAKPROTM Data Analysis Software enclosed

Operation and Service Manual

1980198, Revision R

June 2006

Exposure Monitoring

Model 8520

DUSTTRAKTM Aerosol Monitor

Operation and Service Manual

1980198, Revision R

June 2006

SHIP/MAIL TO:

TSI Incorporated

500 Cardigan Road

Shoreview, MN 55126-3996

USA

U.S.

Technical Support:

(800) 874-2811/(651) 490-2811

Fax:

(651) 490-3824

E-mail address:

answers@tsi.com

Website:

http://www.tsi.com

INTERNATIONAL

Technical Support:

(001 651) 490-2811

Fax:

(001 651) 490-3824

Address

TSI Incorporated / 500 Cardigan Road / Shoreview, MN 55126 / USA

Fax No.

(651) 490-3824

Limitation of Warranty and Liability (effective July 2000)

Seller warrants the goods sold hereunder, under normal use and service as described in the

operator's manual, shall be free from defects in workmanship and material for twenty-four (24)

months, or the length of time specified in the operator's manual, from the date of shipment to the

customer. This warranty period is inclusive of any statutory warranty. This limited warranty is

subject to the following exclusions:

a. Hot-wire or hot-film sensors used with research anemometers, and certain other components

when indicated in specifications, are warranted for 90 days from the date of shipment.

b. Parts repaired or replaced as a result of repair services are warranted to be free from defects

in workmanship and material, under normal use, for 90 days from the date of shipment.

c. Seller does not provide any warranty on finished goods manufactured by others or on any

fuses, batteries or other consumable materials. Only the original manufacturer's warranty

applies.

d. Unless specifically authorized in a separate writing by Seller, Seller makes no warranty with

respect to, and shall have no liability in connection with, goods which are incorporated into

other products or equipment, or which are modified by any person other than Seller.

The foregoing is IN LIEU OF all other warranties and is subject to the LIMITATIONS stated

herein. NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR

PARTICULAR PURPOSE OR MERCHANTABILITY IS MADE.

TO THE EXTENT PERMITTED BY LAW, THE EXCLUSIVE REMEDY OF THE USER OR

BUYER, AND THE LIMIT OF SELLER'S LIABILITY FOR ANY AND ALL LOSSES,

INJURIES, OR DAMAGES CONCERNING THE GOODS (INCLUDING CLAIMS BASED

ON CONTRACT, NEGLIGENCE, TORT, STRICT LIABILITY OR OTHERWISE) SHALL

BE THE RETURN OF GOODS TO SELLER AND THE REFUND OF THE PURCHASE

PRICE, OR, AT THE OPTION OF SELLER, THE REPAIR OR REPLACEMENT OF THE

GOODS. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY SPECIAL,

CONSEQUENTIAL OR INCIDENTAL DAMAGES. SELLER SHALL NOT BE

RESPONSIBLE FOR INSTALLATION, DISMANTLING OR REINSTALLATION COSTS

OR CHARGES. No Action, regardless of form, may be brought against Seller more than 12

months after a cause of action has accrued. The goods returned under warranty to Seller's

factory shall be at Buyer's risk of loss, and will be returned, if at all, at Seller's risk of loss.

Buyer and all users are deemed to have accepted this LIMITATION OF WARRANTY AND

LIABILITY, which contains the complete and exclusive limited warranty of Seller. This

LIMITATION OF WARRANTY AND LIABILITY may not be amended, modified or its terms

waived, except by writing signed by an Officer of Seller.

Service Policy

Knowing that inoperative or defective instruments are as detrimental to TSI as they are to our

customers, our service policy is designed to give prompt attention to any problems. If any

malfunction is discovered, please contact your nearest sales office or representative, or call TSI

at (800) 874-2811 (USA) or (001 651) 490-2811 (International).

CONTENTS

SAFETY INFORMATION .................................................................... V

1 UNPACKING AND PARTS IDENTIFICATION ............................ 1

Unpacking the DUSTTRAK Aerosol Monitor.................................... 1

Parts Identification for the DUSTTRAK Aerosol Monitor.................. 2

2 SETTING-UP................................................................................. 5

Supplying Power to the DUSTTRAK Aerosol Monitor ..................... 5

Installing the Batteries............................................................. 5

Using the AC Adapter ............................................................. 5

Instrument Setup ........................................................................... 6

Setting-up TRAKPRO Data Analysis Software ......................... 6

Connecting the DUSTTRAK Aerosol Monitor to the

Computer............................................................................. 6

Set-Up the Communications Port ........................................... 6

Setting the Real-Time Clock................................................... 7

Programming the Date/Time Using TRAKPRO Software ......... 8

Manually Setting the Real-Time Clock ................................... 8

Connecting the Optional Portable Printer...................................... 8

Connecting/Wiring the Analog/Alarm Output Connector............... 9

3 OPERATION ............................................................................... 11

Overview...................................................................................... 11

DUSTTRAK Aerosol Monitor Keypad Functions............................ 11

ON/OFF Key................................................................................ 11

SAMPLE Key............................................................................... 12

TIME CONSTANT Key................................................................ 12

Programming the Available Time Constants............................... 13

STATISTICS Key......................................................................... 13

PRINT Key................................................................................... 14

SAMPLING MODE Key............................................................... 14

Survey Mode......................................................................... 14

LOG Modes........................................................................... 15

CLEAR MEMORY Key................................................................ 15

LOGGING INTERVAL Key.......................................................... 15

Programming the Logging Intervals using TRAKPRO Software ... 16

Ï and Ð Keys ............................................................................. 17

CALIBRATE Key ......................................................................... 17

Display/Keypad Lockout Switch .................................................. 17

Remote Sampling........................................................................ 17

Respirable Mass Sampling with the Cyclone.............................. 18

Using the Cyclone ....................................................................... 18

Using the 1.0 or 2.5 µm Inlet Conditioners.................................. 19

Using the 10 µm Nozzle .............................................................. 20

Analog Output.............................................................................. 21

Alarm Output................................................................................22

Alarm Output Specifications..................................................23

Programming the Alarm Setpoint..........................................24

Upgrading the DUSTTRAK Aerosol Monitor to Add Analog and

Alarm Functions .......................................................................24

Identifying an Instrument with Analog/Alarm Functions........24

Identifying an Instrument that may be Upgraded to Add

Analog/Alarm Functions.....................................................25

Identifying an Instrument That May Not Be Upgraded..........25

Programming Advanced Modes: LOG 2 and LOG 3...................26

Sample Protocol for LOG 2 and LOG 3 Modes...........................29

Things You Should Know About Taking Pre-Programmed

Samples....................................................................................30

Memory Considerations...............................................................31

Custom Calibrations ....................................................................31

Determining the Calibration Factor for a Specific Aerosol .......... 32

Setting Custom Calibration Factor from Keypad.........................33

Setting Custom Calibration Factors using TRAKPRO Software....34

Converting Stored Data to Calibrated Data................................. 35

4 MAINTENANCE..........................................................................37

Maintenance Schedule................................................................37

Zero Checking/Re-Zeroing ..........................................................38

Cleaning the 1.0 µm and 2.5 µm Inlet Conditioners.................... 39

Cleaning the 10 µm Inlet and Sample Tube................................40

Replacing the Internal Filters.......................................................41

Setting the Flow Rate ..................................................................43

Cleaning the Cyclone ..................................................................44

Storage Precautions....................................................................44

5 TROUBLESHOOTING................................................................45

A SPECIFICATIONS.......................................................................49

B MODEL 8520-1 DUSTTRAK ENVIRONMENTAL ENCLOSURE

OPERATION AND MAINTENANCE MANUAL..........................51

Unpacking the DUSTTRAK Environmental Enclosure...................51

Spare Parts..................................................................................51

Parts Identification: Environmental Enclosure.............................52

SETTING-UP...............................................................................54

Installing the Aerosol or Respirable Aerosol Inlet .......................54

Install Water Trap Bottle..............................................................56

Correct Placement of Velcro Straps ............................................57

Install DUSTTRAK Monitor into Environmental Enclosure.............57

Connecting Tubing ......................................................................59

Supplying Power to the DUSTTRAK Aerosol Monitor.................... 59

Using the External Battery Pack ...........................................60

Install External Battery Pack .................................................60

iii

Mounting to a Surveyor Tripod.................................................... 61

Downloading a Data File ............................................................. 62

Real-Time Monitoring.................................................................. 62

Setting-up TRAKPROTM Data Analysis Software .......................... 62

Transporting the Environmental Enclosure................................. 63

Wiring the Analog/Alarm Cable in the Enclosure ........................ 63

OPERATION ............................................................................... 64

Overview...................................................................................... 64

How to Properly Orient the Environmental Enclosure................. 64

Changing and Re-charging the Battery Packs............................ 64

Receiving Data from the DUSTTRAK Aerosol Monitor.................. 64

Zeroing the DUSTTRAK Aerosol Monitor ...................................... 65

Setting the Flow Rate.................................................................. 65

Locking the Environmental Enclosure......................................... 65

Checklist for Sampling with the Environmental Enclosure.......... 66

MAINTENANCE.......................................................................... 67

Daily Maintenance Checks.......................................................... 67

Cleaning the Aerosol Inlet ........................................................... 67

Cleaning the Respirable Aerosol Inlet......................................... 67

When to Change the Battery....................................................... 67

Replacing the Battery Pack......................................................... 67

Recharging the Battery Packs..................................................... 68

Battery Pack Life ......................................................................... 68

Emptying the Water Trap ............................................................ 68

Storage Precautions.................................................................... 69

TROUBLESHOOTING THE ENVIRONMENTAL

ENCLOSURE.............................................................................. 70

SPECIFICATIONS: ENVIRONMENTAL ENCLOSURE............. 73

INDEX ................................................................................................ 75

AVAILABLE APPLICATION NOTES

DUSTTRAK, Theory of Operation...........................................ITI-036

Frequently Asked Questions: DUSTTRAK Aerosol

Monitor ..............................................................................ITI-039

Serial Interface Commands and Connections:

Model 8520 .......................................................................ITI-044

DUSTTRAK Analog Output .....................................................ITI-073

DUSTTRAK Alarm Output.......................................................ITI-074

To obtain any of the listed Application Notes, contact TSI at:

U.S. (800) 874-2811/(651) 490-2811, Fax: (651) 490-3824

International (001 651) 490-2811, Fax: (001 651) 490-3824

These Application Notes can also be found under TSI’s web site:

http://www.tsi.com

Safety Information

When operated according to the manufacturer’s instruction, this device is a

Class I laser product as defined by U.S. Department of Health and Human

Services standards under the Radiation Control for Health and Safety Act of

1968. A certification and identification label like the one shown below is

affixed to each instrument.

May, 2006

THIS LASER PRODUCT COMFORMS

TO 21 CFR 1040.10 BUREAU OF

RADIOLOGICAL HEALTH AND

SAFETY REGULATIONS.

TSI INCORPORATED

500 CARDIGAN ROAD

SHOREVIEW, MN 55126 USA

There are no user-serviceable parts inside this instrument. Performing

services other than those described in this manual may result in exposure to

harmful (invisible) laser radiation. A warning label like the one shown

below is affixed to the internal laser device.

DANGER: INVISIBLE LASER

RADIATION WHEN OPEN. AVOID

DIRECT EXPOSURE TO BEAM.

WARNING: NO USER SERVICEABLE

PARTS INSIDE. REFER SERVICING

TO QUALIFIED PERSONNEL.

WARNING

The DUSTTRAK monitor Alarm Output function should not

be used to detect hazardous conditions or to provide an

alarm for protecting human life, health, or safety.

Chapter 1

Unpacking and Parts Identification

Carefully unpack the Model 8520 DUSTTRAKTM Aerosol Monitor from the

shipping container. Use the tables and illustrations below to make certain

that there are no missing components. Contact TSI immediately if anything

is missing or damaged.

Unpacking the DUSTTRAK Aerosol Monitor

Compare all the components you received with those listed in the table

below. If any parts are missing, contact TSI.

Quantit

Item Descri

tion Pa

t/Model

1 Model 8520 Aerosol Monitor 8520

1 Carrying Case 800686

4 C-size Alkaline Batteries 1208018

1 AC adapter

115 V, NEMA-1-15

230 V, Eur., CEE 7/16

230 V, Great Britain

240 V, Australian

2613033

2613078

800169

2613105

1 Data Analysis Software CD-ROM 800700

1 Zero Filter 800663

1 Computer Cable, 9-pin to RJ-45 800563

1 25-Pin to 9-Pin Serial Cable Adapter 962003

1 Model 8520 DUSTTRAK Aerosol Monitor

Operation and Service Manual 1980198

1 Calibration Certificate —

1 10 mm Nylon Dorr-Oliver Cyclone 800665

1 Flowmeter, 0–2.5 L/min 800669

4 feet Plastic Tubing, 1/4 in I.D. 800668

1 Small Screwdriver 800661

1 Sample Nozzle Removal Tool 800662

8 Spare Internal Filter Element 1602188

1 Wrist Strap 2913028

1 Shoulder Strap 2913120

1 Sample Nozzle Cleaning Brush 800699

10 Cotton Swab —

1 Inlet Nozzle, 2.5 µm 1508112

1 Inlet Nozzle, 1.0 µm 1508113

1 Impactor Plate 1508114

1 Tube, Grease 801163

1 Analog Output/Alarm:connector, with cable 801652

Chapter 1

Parts Identification for the DUSTTRAK Aerosol Monitor

Figures 1–1 and 1–2 identify the parts of the Model 8520 DUSTTRAK

Aerosol Monitor. Become familiar with these components before

proceeding.

Figure 1–1: Top and Front of the DUSTTRAK Monitor

1. Display 7. External Power Socket

2. Keypad 8. Sample Inlet Nozzle and Port

3. Battery Cover 9. Flow Adjustment Screw

4. Battery Cover

Thumb Screw 10. Analog Output/Alarm

Connector

5. Data Port 11. Cyclone Holder Clip

6. Display/Keypad

Lockout Switch 12. Exhaust Port

5 67

8 9

11 12

Unpacking and Parts Identification 3

Figure 1–2: DUSTTRAK Aerosol Monitor Accessories

1. Zero Filter 9. AC Adapter

2. Flowmeter 10. Cyclone

3. Wrist Strap 11. 25-Pin to 9-Pin Adapter

4. 2.5 µm Inlet Nozzle 12. Shoulder Strap

5. 1.0 µm Inlet Nozzle 13. Sample Tube Cleaning Brush

6. Impactor Plate 14. Sample Tube Removal Tool

7. Grease 15. Internal Filter Elements

8. Computer Cable 16. Analog/Alarm Cable (not

shown)

10 11 12 13 14

4567

Chapter 1

Chapter 2

Setting-Up

Supplying Power to the DUSTTRAK Aerosol Monitor

The Model 8520 DUSTTRAKTM Aerosol Monitor must be powered in one of

two ways: four size C batteries or the supplied AC adapter.

Installing the Batteries

Remove the battery cover and slide the battery holder out of the battery

compartment and insert four size C batteries.

Hold the wires out of the way and slide the battery holder back into the

battery compartment. Tuck the wires in and then re-install the battery

cover (see Figure 2–1).

Figure 2–1: Tuck the Wires In and Close the Cover

Using the AC Adapter

The AC adapter allows you to power the DUSTTRAK monitor from an

AC wall outlet. When using the AC adapter, the batteries (if installed)

will be bypassed. The AC adapter will not charge the batteries.

The DUSTTRAK monitor has an internal, non-user accessible battery that

is used to keep logged data intact when power is turned off. Changing

the C-size batteries or disconnecting the AC adapter will not cause data

to be lost. This battery will last for years. TSI will install a new battery,

if necessary, when the unit is returned to the factory for service.

Chapter 2

Instrument Setup

The DUSTTRAK monitor comes with special software called TRAKPROTM

Data Analysis Software, which is designed to provide you with maximum

flexibility and power when using the DUSTTRAK monitor. The following

sections describe how to install the software and set up the computer.

Setting-up TRAKPRO Data Analysis Software

TRAKPRO software contains a very comprehensive Help Function. This

utility provides all the necessary information to guide you in all aspects

of software operation.

Connecting the DUSTTRAK Aerosol Monitor to the Computer

Each DUSTTRAK monitor comes equipped with an RS-232 cable and a

25-pin to 9-pin serial cable adapter. One end of the cable is a 25-pin D

subminiature connector labeled COMPUTER; the other end is an RJ-45

modular connector that connects with the logging instrument. Serial port

connectors always have pins (male) on the computer side.

1. Locate an available serial port on your computer: COM1, COM2,

COM3, or COM4.

2. If the port has a 25-pin connector, you do not need the adapter. If

the port has a 9-pin connector, plug the 25-pin end of the adapter

into the RS-232 cable.

3. Connect the RS-232 cable to the available serial port on your

computer.

4. Connect the RJ-45 connector to the DUSTTRAK monitor.

Set-Up the Communications Port

To communicate with the DUSTTRAK monitor, the software must be

configured for the proper COM port. The TRAKPRO software can be

manually set to operate on a specific COM port, or it can automatically

find a DUSTTRAK monitor that is attached to any COM port. To set up

the COM port, do the following:

1. Turn on the DUSTTRAK monitor and start the TRAKPRO software.

2. Select Communications from the Instrument Setup menu. The

following dialog is displayed:

Setting-Up 7

3. Select the following:

Serial

Port Select the name of the serial port to which the

logging device is connected: COM1, COM2,

COM3, or COM4.

Baud

Rate Select the baud rate for the port. Higher baud rates

are recommended to transfer data at a faster rate.

Select a lower baud rate only if you are having

trouble communicating at a higher rate.

4. Select Test to verify that you have set up the communications port

properly. The system displays an informative message indicating

whether it was able to establish communications.

5. As an alternate, you can select Find Port, to have the TRAKPRO

software search the available COM ports, looking for an attached

DUSTTRAK monitor.

6. Select OK to accept the setup or Cancel to discard the changes.

Note: Some computers do not communicate reliably at baud rates

above 9600.

Setting the Real-Time Clock

The DUSTTRAK monitor has an internal real-time clock that keeps track

of the time of day (The format is HH:MM where HH is the hour in 24-

hour format and the MM is minutes) and the date. It is very important

for the DUSTTRAK monitor to have the time and date correctly set;

otherwise, date and time stamping of recorded data and calibrations will

not be correct.

There are two ways to set the time and date. The first is to use the

supplied TRAKPROTM Data Analysis Software.

Chapter 2

Programming the Date/Time Using TRAKPRO Software

To program the DUSTTRAK monitor date and time:

1. Make sure the DUSTTRAK monitor is connected to the computer

and turned on.

2. Select Parameters, then Clock from the Instrument Setup menu.

The TRAKPRO software retrieves the current date and time settings

from the DUSTTRAK monitor and displays them in the following

dialog:

3. The system date and time (from the computer) can be transferred to

the DUSTTRAK monitor using the “arrows” keys. Alternately, the

date and time can be manually entered into the dialog box.

4. Select Send to reprogram the DUSTTRAK monitor.

Manually Setting the Real-Time Clock

To set the time and date with the keypad, you must press and hold the

SAMPLE key while the DUSTTRAK monitor displays the time of day

during its power-up. Release when the DUSTTRAK monitor “beeps.”

You will have an opportunity to view and/or change the hours, minutes,

year, month, and day of month in sequence. Use the up and down arrow

keys (ÏÐ) to change a setting. Use the SAMPLE key to store each

setting and advance to the next one.

Connecting the Optional Portable Printer

To connect the portable printer to the DUSTTRAK monitor, locate Printer

Interface Cable and connect the 9-pin end labeled “PRINTER” to the printer

and the other end to the data port on the DUSTTRAK. monitor Always turn the

DUSTTRAK monitor on BEFORE the printer. If the printer prints question

marks (??????), asterisks (******), or random characters, reset it by turning

05/09/2006 05/09/2006

Setting-Up 9

it off and then on again. If necessary, refer to the Portable Printer Operation

and Service Manual.

Connecting/Wiring the Analog/Alarm Output Connector

The Model 8520 DUSTTRAK Aerosol Monitor is capable of providing an

analog output voltage signal that is proportional to the displayed

concentration. It also contains a switch closure that is tied to an alarm value

(see Chapter 3, “Operation,” for complete specifications and operational

information for these features). The DUSTTRAK monitor is supplied with an

output cable. The cable contains a 4-pin, mini-DIN connector. See

Figure 2-2 below.

1. Analog Ground (-) 3. Alarm Positive (+)

2. Analog Output (+) 4. Alarm Ground (-)

Figure 2–2: Analog/Alarm Connector Pin-Outs

Since every application of this function will have unique requirements, the

customer is responsible for making connections to their own equipment. The

output cable contains a label, showing the wiring diagram/pin-outs.

Please see TSI Application Notes ITI-073 and ITI-074 for complete

information and examples of wiring and using the Analog/Alarm Outputs.

These Application Notes are available at the TSI website,

http://www.tsi.com.

Chapter 2

Chapter 3

Operation

Overview

The Model 8520 DUSTTRAKTM Aerosol Monitor has four modes of

operation, Survey, LOG 1, LOG 2, and LOG 3. When the DUSTTRAK

monitor is first turned on it will be in Survey mode, which is used to display

real-time readings and to determine statistics such as average, minimum, and

maximum readings. LOG 1 mode is used to record individual data points for

later analysis using a fixed protocol. LOG 2 and LOG 3 modes have a user-

defined protocol, set up using TRAKPROTM Data Analysis Software.

TRAKPRO software is used for analysis of data taken in any of the three LOG

modes, but cannot be used on samples taken in Survey mode.

DUSTTRAK Aerosol Monitor Keypad Functions

When pressing the keys on the front panel, the DUSTTRAK monitor beeps to

confirm the function. If you press a key and the DUSTTRAK monitor does not

beep, the DUSTTRAK monitor does not allow that function during the

selected sampling mode.

ON/OFF Key

Press the ON/OFF key to power the DUSTTRAK monitor. The DUSTTRAK

monitor immediately begins an internal self-check, while illuminating all the

display digits and symbols. If a problem is detected, the display shows the

message “SERVICE” along with a number to indicate that the DUSTTRAK

monitor requires servicing. Refer to the Chapter 5: “Troubleshooting,” for

information regarding service numbers. If the “SERVICE” message appears,

the DUSTTRAK monitor pauses until any key is pressed.

When the DUSTTRAK monitor completes its internal self-check, it displays

the approximate percentage of battery life remaining. The DUSTTRAK

monitor displays the battery symbol + – when the battery voltage becomes

very low. After the battery symbol appears, the DUSTTRAK monitor runs for

approximately 60 minutes before displaying the message “LO” (for a few

seconds) and then automatically turning off. This feature is accurate for

alkaline batteries only.

Chapter 3

Note: The percentage life remaining will not be accurate for NiCd

batteries. The battery symbol appears when battery voltage

becomes low, but the DUSTTRAK monitor runs considerably less

than 60 minutes before displaying the message “LO” and turning

off.

SAMPLE

CALIBRATE ZERO RECORDING

HR:MN:SEC TEST ID LOG 123

CO2 SAMPLE

ELAPSED TIME

CONSTANT

AVERAGE

MIN MA

SERVICE

% MEMORY

PPM

°F°C

%RH

/m3

Figure 3–1: DUSTTRAK Display with All Elements Shown

After displaying the percentage of battery life remaining, the current time set

on the internal real-time clock is displayed. When the self-check is complete,

the DUSTTRAK monitor will be in Survey mode.

SAMPLE Key

Press the SAMPLE key to start/stop data sampling. The word “SAMPLE”

appears in the upper right corner of the display while the DUSTTRAK monitor

is taking a sample. When sampling is stopped, the DUSTTRAK monitor

automatically scrolls through statistics for the sample that just ended.

TIME CONSTANT Key

Momentarily press and release the TIME CONSTANT key to view the

current time-constant. To change the time-constant, press and hold the key

down. The available time-constant choices will scroll on the display. When

the desired value is displayed, immediately release the key.

The time-constant is actually an averaging period. The DUSTTRAK monitor

display is always updated every second. However, the reading displayed is

the average reading over the last time-constant period. For example, if the

current time-constant is set to 10-seconds, the display shows readings

averaged over the previous 10 seconds, updated every second. This is also

called a 10-second “moving average.”

As configured at the factory, the available time-constant values are 1, 5, 10,

15, and 30 seconds. The internal list of time-constant values can be altered

using TRAKPRO Data Analysis Software supplied with the DUSTTRAK

monitor. The range of time constants allowed is 1–60 seconds. See the

following instructions.

Operation 13

Programming the Available Time Constants

To program the list of time constants using TRAKPRO Data Analysis

Software:

1. Make sure the DUSTTRAK monitor is connected to the computer and

turned on.

2. Select Parameters, then Time Constants from the Instrument Setup

menu. TRAKPRO software retrieves the current time constant settings

from the DUSTTRAK monitor and displays them in the following dialog:

3. Enter a value for each of the five available time constants. (The range is

limited to 1-60 seconds.)

4. Select Send.

The DUSTTRAK monitor is reprogrammed to offer the time constants you

have specified.

STATISTICS Key

Use the STATISTICS key to sequentially view the average, minimum, and

maximum readings as well as the elapsed time of the most recently sampled

data. If one of the LOG modes is active, a test identification number will be

displayed also. Press the STATISTICS key once to display the average

reading, again to display the minimum reading, again to display the

maximum reading, and again to display the elapsed time for that sample (and

again for the test ID if in LOG mode). If you press the STATISTICS key a

fifth time (sixth time if in LOG mode), the DUSTTRAK monitor switches

back into the currently selected measuring mode. You must sequence

through all four statistic displays (i.e., press the STATISTICS key five

Chapter 3

times, six if in LOG mode) before the DUSTTRAK monitor goes back into the

measuring mode.

PRINT Key

Use the PRINT key to print information on the optional Portable Printer.

The information printed will be different depending on what the DUSTTRAK

monitor is currently doing.

When the DUSTTRAK monitor is displaying real-time readings, pressing the

PRINT key causes the reading to be printed along with the time and date.

Each time the PRINT key is pressed, one reading will print. The reading

printed reflects the current time-constant; therefore, it is the same as the

displayed reading.

When the DUSTTRAK monitor is displaying any statistic, pressing the PRINT

key causes the current statistics to print.

When the DUSTTRAK monitor is in one of the LOG modes and is idle

(“%MEMORY” is displayed), pressing the PRINT key causes the logging

setup for the current LOG mode to print.

During the power-up sequence, if you press and hold the PRINT key after

the time is displayed, a printout will be generated showing certain system

information (printer must be connected and turned on).

SAMPLING MODE Key

The SAMPLING MODE key allows you to select among the four sampling

modes: Survey, LOG 1, LOG 2, and LOG 3. Each time you press the

SAMPLING MODE key, the DUSTTRAK monitor sequences to the next

mode. When the DUSTTRAK monitor is in Survey mode, the current

measurement will be shown on the display. When one of the LOG modes is

selected, the LOG mode number, i.e. LOG 1, LOG 2, or LOG 3 will be

displayed along with the percentage of free memory available.

Survey Mode

When the DUSTTRAK monitor is first turned on, it will always be in

Survey mode. Survey mode allows you to make real-time measurements

of aerosol concentration, and to obtain statistics for that sample. The

statistics include the average, minimum, and maximum values, as well

as the elapsed time for that sample. Individual data points are not

recorded (this can be done in any of the LOG modes). Each new sample

taken in Survey mode clears the previous sample data from memory.

Data taken in Survey mode remains in memory until another sample is

made, or until samples are taken in one of the LOG modes. Turning the

Operation 15

DUSTTRAK monitor off will not erase data. Use the SAMPLE key to

start and stop a sample.

LOG Modes

There are three LOG modes: LOG 1, LOG 2, and LOG 3. When one of

these modes is selected using the SAMPLING MODE key, the LOG

mode number will be listed at the top of the display. The LOG modes

allow you to record aerosol concentration data points for later retrieval

and analysis using the software provided with the instrument.

Use the SAMPLE key to start and stop recording. The word

“RECORDING” appears at the top of the display when recording is in

progress.

The frequency that data is recorded can be set for LOG 1 mode with the

LOGGING INTERVAL key. Use TRAKPRO software for LOG 2 and

LOG 3 modes.

Data recorded using one of the LOG modes can only be erased by using

the CLEAR MEMORY key. Turning the DUSTTRAK monitor off will

not erase data. Recording another sample with one of the LOG modes

without clearing memory first will cause new data to be added to the

existing data (using a new test ID).

CLEAR MEMORY Key

Use the CLEAR MEMORY key to erase all data. The CLEAR MEMORY

key will not respond unless the DUSTTRAK monitor is first put into one of

the three LOG modes by using the SAMPLING MODE key.

Note: Before clearing memory, you should first download the data to a

computer through the TRAKPRO software. There is only one block of

memory in the DUSTTRAK monitor. Clearing the memory for one

LOG mode clears memory for all LOG modes.

To clear memory, press and hold the CLEAR MEMORY key until the

countdown reaches zero, then release quickly. This prevents accidental

erasure of data. Releasing the key too soon or too late prevents memory

from being cleared.

LOGGING INTERVAL Key

Use the LOGGING INTERVAL key to view or set the frequency/averaging

period for recording data in LOG 1 mode or to view the current interval

setting in LOG 2 and LOG 3 mode. Use TRAKPRO software to set the

logging interval for LOG 2 and LOG 3 mode (see following section). The

LOGGING INTERVAL key will not respond unless the DUSTTRAK monitor

is first put into one of the three logging modes. Press the LOGGING

Chapter 3

INTERVAL key momentarily to view the current logging interval. Press and

hold the LOGGING INTERVAL key to sequence through the available

choices and release the key when the desired interval is on the display (LOG

1 mode only).

The logging interval is both a frequency and an averaging period. For

example, when the logging interval is set to 30-minutes, readings will be

recorded at 30-minute intervals. Each reading will be the average value

measured over a 30-minute interval.

As shipped from the factory, the available logging intervals for LOG 1 mode

are 1 second, 1 minute, 5 minutes, 15 minutes, and 30 minutes. Use the

TRAKPRO Data Analysis Software to alter these values.

Programming the Logging Intervals using TRAKPRO Software

To program the list of logging intervals available for LOG 1 mode:

1. Make sure the DUSTTRAK monitor is connected to the computer and

turned on.

2. Select Parameters, then Logging Intervals from the Instrument

Setup menu. TRAKPRO software retrieves the current logging intervals

from the DUSTTRAK monitor and displays them in the following dialog:

3. Enter a value for each of the five available logging intervals (the range

is from 1 second to 59 minutes and 59 seconds).

4. Select Send.

The DUSTTRAK monitor is reprogrammed to offer the logging intervals you

have specified.

Operation 17

Ï and Ð Keys

The two arrow keys are used to adjust readings when calibrating the

DUSTTRAK monitor and for adjusting the time and date for the internal real-

time clock.

CALIBRATE Key

Use the CALIBRATE key to put the DUSTTRAK monitor into calibration

mode. See Chapter 4, “Maintenance” for details on how to calibrate.

Display/Keypad Lockout Switch

Recording data over extended time periods often requires leaving the

DUSTTRAK monitor unattended. To reduce the risk of having an

unauthorized person either intentionally or inadvertently interrupt the

measurements, you can lock the display and keypad.

The lockout switch is on the backside of the DUSTTRAK monitor between the

data port and the external power socket. It is a small slide switch and is

recessed so that a pointed instrument must be used to move it.

With the switch in the right side position (nearest the power socket), all

keypad and display functions will work normally. With the switch in the left

side position (closest to the data port), the display and keypad will go into

lockout mode. There are two ways to use the lockout switch. You can lock

the keypad after recording starts, or you can put the switch into the lockout

position prior to when recording starts. If you select the second method, you

will be able to operate all functions normally until the SAMPLE key is

pressed in one of the LOG modes. At that time the keypad automatically

locks. When the display and keypad are locked, the display shows the words

“RECORDING LOG X Ð” where “X” is the current LOG mode number.

Remote Sampling

The DUSTTRAK Aerosol Monitor can be used for remote sampling by

attaching a length of tubing to the inlet. For example, it can be set up for a

test and hidden away where only the sample tubing extends into the area to

be monitored. A 4-foot length of tubing is included with the DUSTTRAK

monitor for remote sampling purposes.

Note: Using a sampling tube longer than 4 feet is not recommended

because particle transport losses in the tube may adversely affect

the measurement. Also, do not use Teflon or silicone tubing

because they can cause significant transport losses. Tygon® tubing

is a good choice, as is metal tubing if it is grounded to dissipate

static charges.

®Tygon is a registered trademark of Norton company.

Chapter 3

Respirable Mass Sampling with the Cyclone

The 10-mm Nylon Dorr-Oliver Cyclone included with your aerosol monitor

can be used to discriminate between the respirable fraction and other

portions of the ambient aerosol. Four micrometers (µm) is internationally

accepted as the 50 percent cut-off size for respirable aerosol mass. Particles

larger than 4 µm impact onto the surfaces of the upper respiratory tract and

cannot reach the lungs. The cyclone accessory provided with the DUSTTRAK

monitor is designed to provide a cut-off at 4 µm. This is specified as a 50

percent cut-off at 4 µm.

The cyclone works by forcing the particle-laden air sample to swirl inside

the cyclone body. Larger (higher mass) particles cannot follow the air stream

and become trapped, while smaller particles stay in the air stream and pass

through. When using the cyclone, you can assume that all particles smaller

than the cut-off size pass through and all larger particles become trapped in

the grit pot.

The cut-off size for any cyclone is dependent on flow rate. It is very

important that the sample flow rate through the DUSTTRAK monitor be

set at 1.7 liters per minute (L/min). If some other flow rate is set, the

cut-off size will not be at 4 µm.

Using the Cyclone

To use the cyclone, be sure that you have the black inlet nozzle in place and

that the blue impactor plate is removed from the inlet. Then you must adjust

the sample flow rate to 1.7 L/min. See Chapter 4: “Maintenance,” for details.

After the flow rate is properly set, attach it to the DUSTTRAK monitor inlet port

using the section of plastic tubing supplied with the cyclone. Slide the cyclone

body into the holder provided on the back of the DUSTTRAK monitor. See

Figure 3–2.

Operation 19

Figure 3–2: Connecting the Cyclone

1. DUSTTRAK Sample Inlet 3. Cyclone Holder

2. Cyclone

Using the 1.0 or 2.5 µm Inlet Conditioners

The two blue inlet nozzles appear similar to the standard black inlet nozzle

but are engraved with their respective cut size. The blue nozzles should

always be used with the blue impactor plate. The black nozzle has a cut size

of 10 μm and should never be used with the impactor plate.

Install either the 1.0 or 2.5 μm inlet conditioner as follows.

1. Turn the DUSTTRAK monitor off.

2. Remove the black inlet nozzle.

3. Evenly coat the center plateau of the blue impactor plate with a thin

layer of the supplied grease (Figure 3–3). Avoid getting the grease on

other parts of the impactor plate. If you do, simply wipe off the extra.

Notes: Do not use grease other than that supplied with this kit. This grease

has been chosen for its low outgassing and good wicking properties

to hold a large mass of particles.

The grease on the impactor plate increases the amount of time that

you can sample before particle bounce begins to affect the impactor

performance. Particle bounce results from particles not sticking to

the impactor plate and falling back into the aerosol stream.

4. Insert the blue impactor plate into the DUSTTRAK monitor.

5. Select the blue nozzle with the cut size you want and make sure there is

an O-ring inside.

Chapter 3

6. Thread the nozzle on the inlet.

7. Turn on the DUSTTRAK monitor and verify that the flow rate is at 1.7

L/min. You might need to make a small adjustment when you switch

nozzles.

The DUSTTRAK monitor is calibrated to the respirable fraction of ISO

12103-1, A1 (formerly called ultrafine Arizona test dust or SAE ultrafine).

To increase the accuracy while using the inlet conditioners, you will need to

calibrate in the aerosol you wish to test. Please refer to the manual for

calibration details.

Figure 3–3: Installing the 1.0 or 2.5 µm Inlet Conditioners

Because of the much higher percentage of particles being removed from the

stream when using the smaller cut-size inlets, you will need to clean the inlet

more frequently than for the standard 10 μm nozzle (black.) See

maintenance schedule in Chapter 4 for the inlet cleaning frequency.

Using the 10 µm Nozzle

1. Remove the blue nozzle and blue impactor plate.

Note: The blue impactor plate must be removed from the inlet when

using the black nozzle. Performance of the 10 micrometer nozzle

will be severely degraded if the impactor plate is not removed.

2. Thread the black nozzle onto the DUSTTRAK monitor inlet.

3. Verify that the flow rate is at 1.7 L/min.

4. The DUSTTRAK monitor now measures aerosol with an upper particle

size limit of 10 μm.

Operation 21

Analog Output

Newer models of the Model 8520 DUSTTRAK Aerosol Monitor contain an

analog output feature. This means the instrument is capable of providing an

analog voltage signal that is proportional to mass concentration.

Note: Before using this feature, it is important to read this operational

section. For further information, please see Application Note

ITI-073, which describes the Analog Output programming and

operation. This Application Note is available at the TSI website,

http://www.tsi.com.

Because the DUSTTRAK monitor measures aerosol over such a wide dynamic

range, it is necessary to select the appropriate range before using the analog

output feature. The instrument may be programmed to one of four options,

using the TRAKPRO software. When shipped from the factory, the instrument

is programmed to the lowest range. To select the analog output range, do the

following:

1. Turn on the DUSTTRAK monitor and start the TRAKPRO software

(version 3.2 or higher).

2. Select Parameters, Analog Output, from the Instrument Setup menu.

The following dialog is displayed:

3. Select one of the four ranges, and press Send.

Please note the following considerations when using the analog output

feature.

• The analog output function is always “On.” You do not need to activate

this function.

• The interpretation of the analog output voltage is directly tied to the

chosen range. For example, at the lowest range, each “0.001 mg/m3” of

Chapter 3

aerosol is equivalent to “0.050 VDC.” If the instrument display shows

“0.018 mg/m3,” the analog output voltage would be “18 x 0.050 VDC”

or “0.9 VDC” (see Application Note ITI-073, for more specifications

and examples).

• Select the lowest range consistent with your desired application. For

example, if you typically measure aerosol mass concentrations around

0.025 mg/m3, you should use the first range. This will provide you with

the best resolution (strongest signal) corresponding to the mass

concentration.

• If your application involves high-mass concentrations (wood dust, etc.)

you may want to choose the second or third range.

• If the DUSTTRAK monitor measures mass concentrations that are greater

than the selected range, the analog voltage will “rail” at 5.0 volts

(maximum output; no change in signal beyond that point).

• All of the ranges are referenced back to “zero” mg/m3.

Alarm Output

Newer models of the DUSTTRAK Aerosol Monitor contain an alarm output

feature. This means the instrument is capable of providing an alarm signal

when the measured mass concentration exceeds a certain threshold.

Note: Before using this feature, it is important to read this operational

section. For further information, please see Application Note

ITI-074, which describes the Alarm Output programming and

operation. This Application Note is available at the TSI website,

http://www.tsi.com .

Operation 23

Alarm Output Specifications

Please note the following considerations when using the analog output

feature.

WARNING

The DUSTTRAK monitor Alarm Output function should not

be used to detect hazardous conditions or to provide an

alarm for protecting human life, health or safety.

• The alarm output function default status is “Off.” You must activate

this function and set the alarm level, before using the alarm output

(see section below, on programming the Alarm Output).

• You must supply your own powered alarm system. The DUSTTRAK

monitor only contains a switch that closes (activates) the alarm,

when the detected levels exceed the threshold.

• The user alarm must be DC-powered only! The alarm system must

not exceed a maximum supply voltage rating of 15 VDC or a

current draw of 1 amp.

Caution

The alarm switch must not be wired to AC power! Failure

to properly install the user alarm could damage the

DUSTTRAK instrument and/or void the instrument

warranty! Please read and follow all instructions before

wiring or operating the user alarm.

• The alarm switch contained within the DUSTTRAK monitor has an

electrical polarity. It must be wired with the supply voltage

connected to the positive pole. If the user alarm is wired with

reverse polarity, it will not function properly.

• The alarm threshold must be set between the values of 0.002 and

100 mg/m3.

• The alarm switch will turn on the instant the setpoint is reached. It

will remain “latched” for a minimum of 5 seconds.

• While the alarm is triggered, the DUSTTRAK monitor’s internal

beeper will sound once per second, and the display will alternately

exhibit the characters “AL” to indicate an alarm condition.

• The alarm switch will turn off when the measured concentration

falls 5% below the setpoint (dead-band).

• The alarm output function operates totally independently of the

analog output.

Chapter 3

Programming the Alarm Setpoint

To program the alarm output function, do the following:

1. Turn on the DUSTTRAK monitor and start the TRAKPRO software

(version 3.2 or higher).

2. Select Parameters, Alarm Setpoint, from the Instrument Setup

menu. The following dialog is displayed:

3. Turn “On” the alarm function by checking the “Alarm Enabled”

check box. Enter a value within the acceptable range. In this

example, the DUSTTRAK monitor is programmed to a setting of

“0.100 mg/m3.” Press the Send button, to program the instrument.

Upgrading the DUSTTRAK Aerosol Monitor to Add Analog and

Alarm Functions

The newest version of the DUSTTRAK Aerosol Monitor contains the analog

output and alarm functions. Older instruments may be hardware compatible

with these functions and may only require a factory upgrade to install these

features. Instruments manufactured before August 1999 are not capable of

being upgraded to add these features. These three scenarios are summarized

below.

Identifying an Instrument with Analog/Alarm Functions

If your instrument contains an Analog/Alarm Output connector on the

back of the instrument, it is fully functional for both analog and alarm

output functions.

Operation 25

Identifying an Instrument that may be Upgraded to Add

Analog/Alarm Functions

If your DUSTTRAK Aerosol Monitor was manufactured after August

1999 (serial number 21960 or later) and does not contain the

analog/alarm output connector, it may be upgraded at the factory to add

this feature. To verify this status, simply attach the instrument to the

TRAKPRO software and attempt to program the Analog or Alarm

Setpoint functions. You should receive the following message:

This instrument may be returned to the factory, for a Cleaning,

Calibration and Upgrade (there is a charge for this service).

Identifying an Instrument That May Not Be Upgraded

If your DUSTTRAK Aerosol Monitor was manufactured prior to August

1999 (serial number 21959 or earlier), it is not hardware compatible

with these functions. It is not possible to upgrade these instruments to

add analog/alarm functions. To verify this status, simply attach the

instrument to the TRAKPRO software and attempt to program the Analog

or Alarm Setpoint functions. You should receive the following message:

Chapter 3

Programming Advanced Modes: LOG 2 and LOG 3

Use LOG 2 or LOG 3 modes for unattended recording and setting user

protocols. With LOG 2 and LOG 3 modes you can set the start date, start

time, test length, logging interval, number of tests and the time delay

between tests. All or selected parameters can be set.

To program a protocol for LOG 2 or LOG 3 mode:

1. Make sure the DUSTTRAK monitor is connected to the computer and

turned on.

2. Select Logging Setup from the Instrument Setup menu. The TRAKPRO

software retrieves the current settings for LOG 2 and LOG 3 modes

from the DUSTTRAK monitor and displays them in the following dialog:

05/09/2006 05/10/2006

Operation 27

The following table summarizes the information displayed in the

DUSTTRAK Logging Protocols dialog box:

Serial Number Displays the serial number of the logging

instrument.

Number of tests

logged Displays the number of tests currently logged

and stored in the logging instrument.

Available

Memory (%) Displays the percent of available memory in

the logging instrument.

LOG 2 and LOG 3 Mode Protocols

Channels Displays the channels selected for sampling in

LOG 2 and LOG 3 modes.

Start Date Displays the start date for LOG 2 and LOG 3

modes.

Start Time Displays the start time for LOG 2 and LOG 3

modes.

Log interval Displays the log interval for LOG 2 and LOG

3 modes.

Test length Displays the test length for LOG 2 and LOG 3

modes.

Number of tests Displays the number of tests for LOG 2 and

LOG 3 modes.

Time between

tests Displays the time between tests for LOG 2

and LOG 3 modes.

Percent

memory

required.

Displays the percent of logger memory

required to perform a LOG 2 or a LOG 3

mode sample. To store the results of a LOG 2

or LOG 3 mode sample, the Available

Memory must be equal to or greater than the

Percent memory required.

Chapter 3

3. Enter the following for LOG 2 and LOG 3 modes:

Channels Select the channels for which you want to log

data. In the case of the DUSTTRAK monitor,

there is only one channel to select: Aerosol.

Start Date

Start Time Enter the date and time to begin the sample:

• If you enter a blank for a start date, the

sample begins whenever the specified start

time occurs.

• If you enter a blank for the start time, both

start date and start time are ignored, and

the sample begins when the operator

manually starts the sample.

Log interval Enter the log interval to use for the test.

Test length Enter the length for the sample:

• If you enter a value, the instrument

automatically turns off when the last test is

complete.

• If you enter a blank, the operator must

manually stop the sample.

Number of tests Enter the number of tests to perform.

Time between

tests If you have specified more than one Number

of tests, enter the time between tests. If you

enter 0 or blank, the next test is started

immediately after the last test is complete.

While you are entering values for LOG 2 and LOG 3 modes, the

Percent Memory Required is dynamically updated to show the amount

of logger memory required to take the programmed sample. If the

protocol you have defined requires more than 100% of memory, you

can decrease the amount of memory required by manipulating the

following protocol parameters:

• Increase the logging interval.

• Decrease the length for the test.

• Decrease the number of tests.

The settings for each LOG mode must not require more than 100% of

the logger memory.

Note: If the Percent memory required is greater than the Available

memory, the logging instrument automatically stops the test

when memory is full.

4. When you have finished defining the parameters for LOG 2 and LOG 3

modes, select Send.

Operation 29

5. You can now disconnect the DUSTTRAK monitor and cable from the

computer.

Sample Protocol for LOG 2 and LOG 3 Modes

The following steps describe how to program a sample protocol for LOG 2

or LOG 3 mode.

The sample protocol for LOG 2 is set to take unattended aerosol readings for

one day, 11/02/2004. The logging sample begins at 8:00 a.m. and continues

for eight hours.

The sample protocol for LOG 3 is set up to take unattended aerosol readings

for two days, beginning on 11/02/2004. The logging sample begins at 8:00

a.m. and continues for eight hours. The instrument is off for 16 hours, and

then repeats the eight hours test on the following day.

The following graphic gives the appearance of the dialog box displayed in

the TRAKPRO software, with these particular logging parameters.

To program this logging example, do the following:

1. Make sure the DUSTTRAK monitor is connected to the computer and

turned on.

05/09/2006 05/10/2006

Chapter 3

2. Select Logging Setup from the Instrument Setup menu. The TRAKPRO

software retrieves the current settings for LOG 2 and LOG 3 modes

from the DUSTTRAK monitor and displays them in the previous dialog.

3. Enter the following for LOG 2 and LOG 3:

Setting LOG 2 LOG 3

Channels Aerosol Aerosol

Start Date 05/09/2006 05/10/2006

Start Time 08:00 08:00

Log interval 01:00 05:00

Test length 00:08:00 00:08:00

Number of tests 1 2

Time between

tests 00:00:00 00:16:00

4. Select Send. The logging instrument is programmed for the mode 2 and

mode 3 protocols.

5. Note that the LOG 2 test requires 1% of the available memory and

LOG 3 requires less than 1% of the memory. A total of 100% of the

memory is available for use.

6. You can now disconnect your DUSTTRAK monitor from the computer.

Refer to other sections of this Operation and Service Manual for details

on making measurements using LOG 2 and LOG 3 modes.

After programming the DUSTTRAK monitor with the TRAKPRO Data

Analysis Software, take the DUSTTRAK monitor to the desired location and

turn it on. Put it into LOG 2 or LOG 3 mode (whichever you programmed)

using the SAMPLING MODE key. Press the SAMPLE key to initiate the

program.

If you have set a start time and/or date, the display toggles between the next

“TEST ID” and the “ELAPSED TIME 0” message. If the test start time is

greater than one minute away, the DUSTTRAK monitor shuts off until one

minute before the test start time. This indicates that the DUSTTRAK monitor

is waiting until the programmed start time and dates occur. To prevent

tampering, lockout the display and keypad at this time.

Things You Should Know About Taking Pre-Programmed

Samples

If you press the SAMPLE key during programmed operation, the

program terminates (unless the keypad is locked).

Operation 31

If the programmed start time/date has already passed, pressing the

SAMPLE key has no effect. The program will never execute.

It is always best to enter both a start time and start date! However,

setting the start time but no start date causes the DUSTTRAK monitor to

start at the specified time regardless of the date. The instrument may not

shut down prior to beginning logging.

If no start time is set, the DUSTTRAK monitor waits for you to press the

SAMPLE key and then starts sampling immediately.

If no test length is set, the DUSTTRAK monitor takes samples continuously

until the SAMPLE key is pressed to stop sampling or until memory is full.

When a pre-programmed test ends, the DUSTTRAK monitor automatically

shuts off.

Memory Considerations

The DUSTTRAK monitor has a great deal of memory and you will not

normally have to be concerned with running out. The DUSTTRAK monitor

can store more than 31,000 data points. Therefore 1% of memory is about

310 data points.

This should be considered when selecting a logging interval. Shorter logging

intervals use memory more quickly than longer intervals.

The logging interval and the available memory determine the maximum

possible duration of a data logging session. The equation below can be used

to determine any memory, recording time or logging interval restraints.

[]

[][ ]

Interval Logging315

Time Elapsed

Memory% ×

≈

(Note: Elapsed Time and Logging Interval are in units of minutes.)

Custom Calibrations

In most situations, the DUSTTRAK monitor with its built-in data logger can

provide very good information on how the concentration of an aerosol

changes for different processes over time. Factory calibration to the

respirable fraction of standard ISO 12103-1, A1 test dust (formerly Arizona

Test Dust) allows comparisons between measurements where the source or

type of dust is predominately the same. Because optical mass measurements

are dependent upon particle size and material properties, there may be times

in which a custom calibration would improve your accuracy for a specific

aerosol.

Chapter 3

The DUSTTRAK monitor has several features to aid in obtaining good

accuracy for a particular aerosol.

• The DUSTTRAK monitor’s custom calibration factor can be changed

through the instrument keypad. All future readings from the DUSTTRAK

monitor will correspond to a specific aerosol until the calibration factor

is changed back to the factory setting.

• Custom calibration factors can be stored in a table and downloaded to

the DUSTTRAK monitor using the TRAKPRO Data Analysis Software. All

future measurements will correspond to a specific aerosol until the

calibration factor is changed back to the factory setting.

• A single set of logged data can be converted to data calibrated to a

specific aerosol with the use of the TRAKPRO software. This conversion

can be done by knowing either the true mass concentration for the

logged data or the calibration factor for the aerosol. Future

measurements will continue to be read and logged with the original

calibration factor (normally 1.0) and will not be converted

automatically.

All of these options require that you determine a true mass concentration

(e.g., gravimetric analysis) for the aerosol you want to measure. The true

mass concentration is used to calculate the custom calibration factor for that

aerosol. Once you have a custom calibration factor, you can reuse it each

time you make measurements in the same or similar aerosol environment.

Determining the Calibration Factor for a Specific Aerosol

The DUSTTRAK monitor is factory calibrated to the respirable fraction of

standard ISO 12103-1, A1 test dust. The DUSTTRAK monitor can be easily

calibrated to any arbitrary aerosol by adjusting the custom calibration factor.

The DUSTTRAK monitor’s custom calibration factor is assigned the value of

1.00 for the standard ISO test dust. This procedure describes how to

determine the calibration factor for a specific aerosol. Using a value of 1.00

will always revert back to the factory calibration.

To determine a new calibration factor you need some way of accurately

measuring the concentration of aerosol, hereafter referred to as the reference

instrument. A gravimetric analysis is often the best choice, though it is

limited to nonvolatile aerosols.

To make an accurate calibration you must simultaneously measure the

aerosol concentration with the DUSTTRAK monitor and your reference

instrument.

1. Zero the DUSTTRAK monitor as described in the Maintenance chapter.

Operation 33

2. Put the instrument in Log Mode 1.

3. Set the logging interval by pressing and holding the LOGGING

INTERVAL button down. The default choices for the logging intervals

can be reprogrammed using TRAKPRO software. One minute (i.e.,

“01:00”) is often a good choice.

4. Locate the DUSTTRAK monitor and the reference sampler together so

that they are measuring from the same area.

5. Start sampling aerosol with both instruments at the same time.

Note: Greater accuracy will be obtained with longer samples. The

time you permit for sampling often depends on the reference

instrument and characteristics of the measured aerosol. It may

take some time to collect sufficient aerosol onto a filter cassette

for accurate gravimetric analysis. Refer to instructions of your

reference instrument for sampling times.

6. Stop sampling with both instruments at the same time.

7. Record the DUSTTRAK monitor average concentration. Press the

STATISTICS key to view the average for the last test. If you wish to

determine a custom calibration factor for this test only, you can instead

receive the data into the TRAKPRO software.

8. Determine the mass concentration in mg/m3 from your reference

instrument. For gravimetric sampling this means having the gravimetric

sample weighed.

9. Compute the new calibration constant, NewCal, using the following

formula:

CurrentCal

ionConcentratDustTrak

ionConcentrat Reference

NewCal ⋅

⎟

⎠

⎞

⎜

⎝

⎛

The calibration factor, OldCal, can be obtained from the DUSTTRAK

monitor. In Survey mode, press and hold the CALIBRATE key down

until the display counts down to zero. Release immediately when zero is

reached and “CALIBRATE ZERO” appears on the display. If not, try

again until it does. Press CALIBRATE again and the current calibration

factor will be displayed with flashing up and down arrows. Record this

value to make your calculation. Press CALIBRATE again to exit

calibration mode.

Setting Custom Calibration Factor from Keypad

1. In Survey mode, press and hold the CALIBRATE key down until the

DUSTTRAK monitor counts down to zero. Release the button

Chapter 3

immediately when zero is reached and “CALIBRATE ZERO” appears

on the display. If not, try again until it does.

2. Press CALIBRATE again and the current calibration factor will be

displayed with flashing up and down arrows.

3. Use the up and down arrows on the keypad to adjust the calibration

factor. To revert back to factory calibration, set to 1.00.

4. Press SAMPLE to store the value and exit calibration mode, or press

CALIBRATE to exit without saving the new value.

Setting Custom Calibration Factors using TRAKPRO Software

The TRAKPRO software allows you to store several custom calibration

factors along with a brief title for the aerosol or environment the calibration

was taken. A calibration factor can be downloaded to the DUSTTRAK

monitor when you want to make measurements of that aerosol or

environment. All future measurements will be adjusted by the new custom

calibration factor until you change it to some other value. To set this new

custom calibration factor using TRAKPRO software, do the following:

1. Connect your DUSTTRAK monitor to the computer and start the

TRAKPRO software.

2. Select DUSTTRAK Model 8520 from the Options menu. Or, select

DUSTTRAK from list of available instruments on the Drop-Down menu

on the menu bar.

3. Select Calibration in the Instrument Setup menu. The following

dialog box is displayed.

05/09/2006

Operation 35

4. Click the Set DUSTTRAK Calibration button. The following dialog box

is displayed.

5. Enter a new Calibration Factor along with a new Name and press

Add. This adds the new Calibration Factor to the list of available

factors. In the example above, the “Wood Dust” factor, with a value of

1.45, was added to the list.

Note: This step does not automatically download the new value to

the DUSTTRAK monitor. This must be done in a separate step.

6. Highlight the desired Defined Calibration factor (either the new one or

a previous factor) by clicking on it, and press Send. This downloads the

new Calibration Factor to the DUSTTRAK monitor. You can enter up to

25 different custom calibrations.

7. The DUSTTRAK monitor response for all subsequent measurements will

be multiplied by the new factor. To reset the DUSTTRAK monitor to

factory calibration, simply send the factory setting of 1.

Converting Stored Data to Calibrated Data

A single set of logged data can be converted to data calibrated to a specific

aerosol with the use of the TRAKPRO software. This conversion can be done

by knowing either the true mass concentration for the logged data or the

calibration factor for the aerosol. To perform this conversion, follow these

steps:

Note: This process converts existing data files using a new calibration

factor. It does not affect the current reading of the DUSTTRAK

monitor. Future measurements will continue to be read and logged

with the original calibration factor (normally 1.0) and will not be

converted automatically.

1. Connect your DUSTTRAK monitor to the computer and start the

TRAKPRO software.

Chapter 3

2. Select DustTrak Model 8520 from the Options menu under Software

Configure. Or, select DustTrak from list of available instruments on

the drop-down menu on the menu bar.

3. Open the file that contains the data to be converted. Highlight a single

test within that data file.

4. Select Define DustTrak Calibration from the Options menu. The

following dialog box is displayed.

5. Enter the New Mass Concentration value (in mg/m3). The New

Calibration Factor is calculated and automatically updated. Press OK.

6. When you click OK, a new data set of the same name will be generated

calibrated to the mass concentration that you entered. This data set will

be appended to the same file. The original data remains.

7. If you want to adjust the data to a previously determined custom

calibration factor without performing a gravimetric calibration, enter the

new calibration factor. The New Mass Concentration automatically

updates.

05/09/2006,

Chapter 4

Maintenance

The DUSTTRAK monitor can be maintained and calibrated in the field using

the instructions below. Even so, TSI recommends that you return your

DUSTTRAK monitor to the factory for annual calibration. For a reasonable

fee, we will quickly clean and calibrate the unit and return it to you in “as

new” working condition, along with a Certificate of Calibration. This

“annual checkup” helps ensure that the DUSTTRAK monitor is always in

good operating condition.

The DUSTTRAK monitor is factory calibrated to the standard ISO 12103-1,

A1 test dust (formerly Arizona Test Dust). The calibration data is stored

internally and cannot be accessed by you. This standard test dust is used

because of its wide particle size distribution. This makes the internal

calibration representative of an average of most types of ambient aerosol you

might encounter.

For many applications, the factory calibration provides accurate

measurements. There may be times when more accurate mass concentration

data is needed because the aerosol being sampled is significantly different

than the standard ISO test dust. To accommodate such a measurement, the

DUSTTRAK monitor has been designed to allow for field calibration.

Note: There are no user-serviceable parts inside this instrument. TSI

recommends that you return the DUSTTRAK monitor to the factory

for any required maintenance or service not described in this

manual.

Maintenance Schedule

Your Model 8520 DUSTTRAK Aerosol Monitor requires maintenance on a

regular basis. Table 4–1 lists the factory recommended maintenance

schedule.

Some maintenance items are required each time the DUSTTRAK monitor is

used or on an annual basis. Other items are scheduled according to how

much aerosol is drawn through the instrument. For example, cleaning the

inlet sample tube is recommended after 350 hours of sampling a 1 mg/m3

concentration of aerosol. This recommendation should be pro-rated

according to how the instrument is used. 350 hours at 1 mg/m3 is the same

amount of aerosol as 700 hours at 0.5 mg/m3 or 175 hours at 2 mg/m3, etc.

Chapter 4

When using the 1.0 or 2.5 μm inlet nozzles you need to clean the inlet more

frequently than for the standard 10 μm nozzle (black) because of the much

higher percentage of particles being removed from the stream. Table 4–1

represents estimates of how long you can run before cleaning is necessary.

The actual time you can run between cleanings varies with the size

distribution of particles you are measuring.

Table 4–1. Recommended Maintenance Schedule

Item Frequency

Perform zero check Daily (or before long tests)

Clean 1.0 μm nozzle 5 hr. at 1 mg/m3*

Clean 2.5 μm nozzle 30 hr. at 1 mg/m3*

Clean 10 μm nozzle, inlet, and sample tube 350 hr. at 1 mg/m3*

Replace internal filters 700 hr. at 1 mg/m3*

Clean cyclone Before each use

Return to factory for cleaning and

calibration Annually

*Pro-rated, see discussion above.

The DUSTTRAK monitor keeps track of the accumulated amount of aerosol

drawn through it since its last cleaning. When sample tube cleaning or

internal filter replacement is due, the display shows the message

“SERVICE 4” or “SERVICE 5,” respectively, during power-up. Press any

key to bypass the message, but be sure to perform the maintenance

procedures at your earliest convenience.

TSI recommends that you perform a zero check each day the DUSTTRAK

monitor is used, before running any extended tests, and after the instrument

experiences a significant environmental change. Examples of significant

environmental changes would be ambient temperature changes that exceed

15 °F (8 °C) or moving from locations with high aerosol concentrations to

low concentrations.

Zero Checking/Re-Zeroing

1. Put the DUSTTRAK monitor in Survey mode.

2. Put zero filter on aerosol sample inlet. See Figure 4–1.

3. Set the time-constant to 10 seconds. Press and hold the TIME

CONSTANT key until “10” is displayed, then release.

4. Wait 10–60 seconds for displayed values to settle to zero.

5. If the displayed value is between -0.001 and +0.001 mg/m3, the

DUSTTRAK monitor does not need adjustment. If the displayed value

exceeds this limit, follow steps 7 to 9 below to re-zero the instrument.

Maintenance 39

Note: Negative mass concentration readings are an indication that

the DUSTTRAK monitor needs to be re-zeroed. The negative

reading of –0.001 in step 5 above is the only time when a

negative reading is acceptable.

Figure 4–1: Zero Checking the DUSTTRAK Aerosol Monitor

6. Press and hold the CALIBRATE key and wait for the displayed

countdown to reach 0, then immediately release the key. The message

“CALIBRATE ZERO” is displayed… if not, try again.

7. Press the SAMPLE key and wait for the 60-second countdown. When

the countdown is completed, the current calibration constant will be

displayed.

8. Press the CALIBRATE key again to return to survey mode. The re-

zeroing process is now completed.

Cleaning the 1.0 µm and 2.5 µm Inlet Conditioners

1. Turn the DUSTTRAK monitor off.

2. Remove the inlet nozzle and impactor plate.

3. Wipe the old grease and other residue off from the impactor plate and

nozzle. Once the nozzle and impactor plate are removed from the

DUSTTRAK monitor, compressed air can be used to blow them off. Do

not blow directly into the DUSTTRAK inlet. You can use isopropanol

or soap and water to clean the parts, but be sure they are dry before

reassembly.

4. Inspect the inlet for residue and clean as necessary.

5. Reapply grease to the impactor plate.

6. Reassemble the inlet conditioners.

Chapter 4

Cleaning the 10 µm Inlet and Sample Tube

The aerosol inlet needs to be cleaned regularly. The inlet nozzle should be

cleaned based on the schedule in Table 4–1 above or especially when

changing from very high concentrations of aerosols to low concentrations.

The “SERVICE 4” message will be displayed during power-up when nozzle

cleaning is due. The DUSTTRAK monitor pauses when any of the service

messages come on. Press any key to bypass the message and continue. The

“SERVICE 4” message is a one-time indicator to remind you that inlet port

cleaning is due. This message will automatically reset.

1. Move to a relatively clean environment. (Aerosol concentration less

than 0.1 mg/m3.)

2. Turn the DUSTTRAK monitor off.

Figure 4–2: Exploded View of Inlet Assembly

3. Remove the sample inlet nozzle and O-ring. The O-ring will usually

stay inside the nozzle.

4. Use the sample tube removal tool to unscrew the tube from the inside of

the inlet port. The cross-pattern on one end of the tool mates with the

end of the sample tube.

5. Use the hook end of the tool to pull the sample tube out of the inlet port.

6. Clean the sample tube and inlet port. A cotton swab can be used to clean

the inside of the inlet port, cap, O-ring, and ends of the tube. The swabs

can be dampened with water or a light solvent (e.g., isopropanol).

Note: Do not use compressed air to clean the inlet area. Compressed

air forces particulates into the optics chamber and

contaminates the optics.

Maintenance 41

The inside of the sample tube can be cleaned using the sample tube

cleaning brush provided, along with a light solvent. Dry the tube by

blowing it out with compressed air, or let it air-dry thoroughly. Be

careful not to blow particles into the DUSTTRAK monitor inlet port.

7. Insert the sample tube back into the port and screw it in using the

sample tube removal tool.

8. Replace the inlet nozzle and O-ring.

9. Perform a zero check and re-zero if necessary.

10. Turn the DUSTTRAK monitor off and turn it on again while pressing and

holding the CALIBRATE key. This action resets the internal circuit that

keeps track of the total aerosol quantity that has gone through the

instrument. The inlet port cleaning procedure is now completed.

Replacing the Internal Filters

The internal filters should be replaced based on the schedule in Table 4–1 or

when the “SERVICE 5” is displayed during power-up. This “service

reminder” will appear each time at power-up, until you reset this message.

To reset the “SERVICE 5” reminder, do the following:

1. Turn the instrument off.

2. Press and hold the CALIBRATE key while turning on the instrument.

3. The service message is now reset.

If you change the filters before the “SERVICE 5” message appears, you

should reset this reminder by using the same technique.

The operation of the built-in total mass tracking circuit is dependent upon

the instrument calibration and the instrument flow rate. The assumed flow

rate is 1.7 L/min.

To replace the internal filters, follow the procedure below. Refer to

Figure 4-3.

1. Move to a relatively clean environment (aerosol concentration less than

0.1 mg/m3).

2. Turn the DUSTTRAK Aerosol Monitor off.

Chapter 4

Figure 4–3: Internal Filter Replacement

3. Turn the aerosol monitor over on its keypad so the filter wells are facing

up.

4. Use the small flat-blade screwdriver to unscrew the retaining screws at

the center of each filter well. The screws are “captive” and will stay in

the caps.

5. Grip the screw heads between your thumb and forefinger. Lift to pull

the filter well caps off. There is an O-ring under each cap that may lift

out with the cap.

6. Pull out the internal filter elements and discard them.

7. Clean the inside of the filter wells if necessary with a mild solvent like

isopropanol and a cotton swab. Do not use compressed air.

8. Replace the internal filter elements with TSI part no. 800666.

Note: Only the recommended high efficiency particulate air (HEPA)

filters should be used. The DUSTTRAK monitor should never be

run without filters in place. Doing so will contaminate the

optics and probably require you to send the unit back to the

factory for cleaning.

9. Replace the O-rings and caps.

10. Use the small screwdriver to tighten the hold-down screws until “finger-

tight.” Do not over-tighten.

Maintenance 43

11. Zero the mass tracking circuit to turn the service message off. This is

done by pressing and holding the CALIBRATE key during power-up.

The procedure is now completed.

Setting the Flow Rate

The sample flow rate through the DUSTTRAK monitor is set at the factory at

1.7 L/min. The flow rate can be easily adjusted if necessary by following the

procedure below. You need an instrument that precisely measures flow rate

for use as a reference such as the flowmeter supplied with the DUSTTRAK

monitor.

Note: The mass concentration readings are not affected by flow rate

changes because the volume of sampled air “seen” by the

DUSTTRAK detector is fixed. Flow rate is critical when using the

cyclone or other aerosol separation devices.

1. Clean the inlet port as described in this chapter. If necessary, replace the

internal filters as described in this chapter.

2. Connect the flowmeter to the DUSTTRAK monitor sample port using the

tubing provided.

3. With the DUSTTRAK monitor running, use the supplied screwdriver to

turn the flow adjustment screw located on the back of the DUSTTRAK

monitor (see Figure 4–4). Observe the reading on the flowmeter

(reading is taken at the center of the ball) and adjust the flow until the

desired reading is obtained. The factory setting is 1.7 L/min.

4. Disconnect the flowmeter. The procedure is now completed.

Figure 4–4: Adjusting the Flow Rate

Chapter 4

Cleaning the Cyclone

The 10-mm Nylon Dorr-Oliver Cyclone should be cleaned prior to each use.

In most cases, simply cleaning the grit pot will be all that is needed. Inspect

the inside of the cyclone body regularly and clean it if necessary.

1. Detach the cyclone from the DUSTTRAK monitor.

2. Unscrew the grit pot from the bottom of the cyclone and pull the top off

the cyclone by pulling on the plastic tubing.

3. Hold the open end of the grit pot down and tap it on a hard surface to

dislodge particles. Repeat with the cyclone body.

Note: If dirt is visible inside either the grit pot or the cyclone body, it

may be necessary to blow compressed air into the cyclone

parts and/or to clean them with soap and water. A mild solvent

like isopropanol may also be used. Make certain that the

cyclone is perfectly dry before using it.

4. Re-assemble the cyclone. Refer to Figure 4–5 below. The cyclone

cleaning procedure is now completed.

Figure 4–5: Exploded View of 10 mm Nylon Dorr-Oliver Cyclone

Storage Precautions

When storing the DUSTTRAK monitor for more than 30 days, you should

remove the batteries. This prevents damage due to battery leakage.

This instrument must be stored in a location where the temperature remains

between –20 and 60°C (–4 and 140°F).

Chapter 5

Troubleshooting

The table below lists the symptoms, possible causes, and recommended

solutions for common problems encountered with the DUSTTRAK monitor.

Symptom Possible Cause Corrective Action

Erratic zero

reading. Leak.

Dirty inlet port and/or

sample tube.

Sample nozzle missing.

Internal filter(s) not

installed properly

(leaking).

Check connections for leaks.

Replace zero filter.

Tighten inlet cap.

Clean inlet port. Clean or

replace tubing.

Remove inlet port cap and

check sample nozzle. Replace

if missing.

Inspect internal filter wells to

make certain the filters and o-

rings are seated properly.

Replace internal filters if

necessary.

No display. Unit not switched on.

Low or dead batteries.

Batteries installed

backwards.

Dirty battery contacts.

Switch unit on.

Replace the batteries or plug in

the AC adapter.

Observe polarity indication on

battery holder diagram.

Clean the battery contacts.

No keypad

response. Display/Lockout switch

in lockout position. Slide lockout switch to normal

position (to the right).

Incorrect

function

displayed.

Two keys have been

pressed at the same time. Press only one key at a time.

Chapter 5

Symptom Possible Cause Corrective Action

Battery

symbol is

displayed.

(constant or

blinking)

Low battery charge.

Incorrect AC adapter.

Low AC line Voltage

Dirty battery contacts.

Replace batteries or use AC

adapter.

Replace with the correct AC

adapter.

Correct the AC line voltage or

use batteries.

Clean the battery contacts.

Analog

output does

not work

Cable/connector not

correctly installed.

Output wired with reverse

polarity.

Make sure cable connector is

fully seated.

Make sure analog out (+) and

analog ground (-) are wired

correctly to data-logger.

Analog

output is not

in proportion

to display

Analog output range in

DUSTTRAK monitor may

be set incorrectly.

Data logger scaling factor

may be set incorrectly.

Program analog output to

desired range:

• 0 – 0.100 mg/m3

• 0 – 1.00 mg/m3

• 0 – 10.0 mg/m3

• 0 - 100 mg/m3

Scaling factor must be

consistent with DUSTTRAK

monitor.

Alarm

output does

not work.

Alarm does

not turn on

correctly.

Alarm function not turned

on.

Alarm setting incorrect.

Cable/connector not

correctly installed.

Alarm output wired with

reverse polarity.

Alarm function is “off” by

default. It must be programmed

“on” (using TRAKPRO

software).

Program alarm setting using

TRAKPRO software.

Make sure cable connector is

fully seated.

Alarm wires are polarized.

Voltage input must be wired to

alarm input (+).

Maintenance 47

Symptom Possible Cause Corrective Action

Display

reads

“MEMORY

0%.”

Memory is full. Download memory to a PC if

desired, then clear memory.

“SERVICE”

and “1”

displayed.

Memory has been cleared

due to temporary loss of

power from internal

backup battery.

Factory service required if

condition persists. Press any

key to bypass.

“SERVICE”

and “2”

displayed.

Calibration memory error.

Internal calibration data

corrupted.

Factory service required.

“SERVICE”

and “3”

displayed.

Backup battery low. Factory service required. Press

any key to bypass.

“SERVICE”

and “4”

displayed.

The sample inlet nozzle is

due for cleaning. Clean the nozzle and sample

inlet port. Press any key to

bypass.

“SERVICE”

and “5”

displayed.

Internal filters are due for

replacement. Replace internal filters and

reset service reminder. See

“Replacing the Internal Filters”

for more information.

“SERVICE”

and “6”

displayed.

Flow obstruction on

previous power up.

Internal pump failing,

indicated by inability to

adjust flow rate to full

range.

Remove obstruction if still

present. Press any key to

bypass.

If Service 6, recurs on each

power up even after bypassing,

factory service may be

required.

Chapter 5

Symptom Possible Cause Corrective Action

“SERVICE”

and “7”

displayed.

High humidity or laser

failure. Typically occurs if the unit is

turned ON either after sampling

under high humidity conditions

or when instruments are stored

at a different temperature than

that of the sampling area.

Bypass this error by pressing

“Calibrate” key. Zero the

DUSTTRAK by following the

instructions given in Chapter 4,

“Maintenance,” under section

“Zero Checking/Re-Zeroing”.

If the unit cannot be zeroed, let

the DUSTTRAK equilibrate to

ambient conditions and try

zeroing the DUSTTRAK again. If

the Service 7 error still persists,

it might be due to laser failure

and the unit needs to be

returned to TSI.

Appendix A

Specifications

Specifications are subject to change without notice.

Sensitivity:

Sensor type:..................... 90° light scattering, laser diode

Range: ............................. 0.001–100 mg/m3 (calibrated to respirable

fraction of standard ISO 12103-1, A1 test

dust)

Resolution: ...................... ±0.1 % of reading or ±0.001 mg/m3,

whichever is greater

Zero stability:.................... ±0.001 mg/m3 over 24 hours using

10-second time-constant

Particle size range: .......... 0.1–approximate 10 µm (Upper limit is

dependent on flow rate)

Flow rate range:............... 1.4–2.4 L/min.

Temperature coefficient: .. +0.001 mg/m3 per °C (for variations from

temperature at which DUSTTRAK monitor

was zeroed)

Instrument Temperature Range:

Operating range: ............. 0 °C to 50 °C (32 °F to 120 °F)

Storage range: ................ -20 °C to 60 °C (-4 °F to 140 °F)

Time Constant:

Range:.............................. Adjustable from 1 to 60 seconds

Data Logging:

Data points:...................... >31,000 (21 days logging every minute)

Logging interval:............... Adjustable from 1 second to 1 hour

Analog Output (selected instruments only):

Selectable ranges: ........... 0 – 0.100 mg/m3

0 – 1.0 mg/m3

0 – 10.0 mg/m3

0 – 100 mg/m3

Voltage output.................. 0 – 5 VDC

Output impedance............ 0.01 ohms

Maximum current ............. 15 mA

Appendix A

Alarm Output (selected instruments only):

Range............................... 0.002 to 100 mg/m3

Maximum voltage input .... 15 VDC

Maximum current ............. 1 amp

Physical:

External dimensions:........ 221 mm x 150 mm x 87 mm (8.7 in x

5.9 in x 3.4 in)

Weight (with batteries): ... 1.5 kg (3.3 lb.)

Display:............................. 4 digit LCD, 15 mm (0.6 in) digit height

Factory Maintenance:

Factory clean/calibrate:.... Annually

User Maintenance:

User calibration: ............... As needed

Clean nozzle: ................... After every 350 hours at 1 mg/m3

(e.g., 350 hours at 1 mg/m3, 35 hours at

10 mg/m3 or 3.5 hours at 100 mg/m3)

Change internal filters: ..... After every 700 hours at 1 mg/m3

(e.g., 700 hours at 1 mg/m3, 70 hours at

10 mg/m3 or 7 hours at 100 mg/m3)

Serial Interface:

Type: ................................ RS-232

BAUD rate: ....................... 1200

Data Bits:.......................... 8

Stop Bits:.......................... 1

Data Format: .................... ASCII

Power Requirements:

External Adapter: ............. 6 VDC, 300 ma

Batteries: .......................... 4 C-size Alkaline

Battery run-time:............... 16 hours (typical)

EMI/RF Immunity:

1. Complies with Emissions Directive Standard: EN50081-1:1992

2. Complies with Immunity Directive Standard: EN50082-1:1992

Appendix B

Model 8520-1 DUSTTRAK Environmental

Enclosure Operation and Maintenance Manual

Unpacking the DUSTTRAK Environmental Enclosure

Carefully unpack the Model 8520-1 DUSTTRAK Environmental Enclosure

from the shipping container. Use the tables and illustrations below to make

certain that there are no missing components. Contact TSI immediately if

anything is missing or damaged.

Table B–1: Model 8520-1 DUSTTRAK Environmental Enclosure

Quantity Item Description Part/Model

1 Model 8520-1 DUSTTRAK

Environmental Enclosure Case 8520-1

1 7.5 V Universal Input Battery Charger 1208033

2 6 V, 10 A-Hr Lead/Acid Battery 801563

1 Aerosol Inlet Assembly 801565

1 Water Trap Bottle 2002032

2 Velcro Strap 2913125

2 Tygon Plastic Tubing, 1/4 in ID 3001252

1 DB9 Connector Dust Caps 1304132

1 Transportation Inlet Port Plug 2602013

1 Tripod Mount Screw Plug 5010005

1 Model 8520 DUSTTRAK Aerosol

Monitor Operation and Service Manual 1980198

Spare Parts

The following kit contains replacement parts that may be needed if the

standard parts are lost or destroyed. It contains O-rings, storage caps (DB9

and inlet) and replacement tubing.

Quantity Item Description Part/Model

1 Environmental Enclosure Spare parts 801566

Appendix B

Parts Identification: Environmental Enclosure

Figures B–1and B–2 identify the parts of the Model 8520-1 DUSTTRAK

Environmental Enclosure. Please become familiar with these components

before proceeding.

Figure B–1: Inside and Outside Views of

Environmental Enclosure

1. Inlet Assembly (in storage) 5. Feed Thru DB9 Adapter

2. DUSTTRAK/Battery Bracket 6. Inlet Assembly (sampling)

3. Water Trap Bottle 7. Inlet Ring

4. Inlet Mounting Brackets

Setting-Up 53

Figure B–2: DUSTTRAK Environmental Enclosure Accessories

1. 6 V-10 Ah Battery

Pack (X2)

2. 7.5 V Universal

Input/Dual Step Charger

3. Aerosol Sampling Inlet

4. Respirable Sampling

Inlet (optional)

5. Water Trap Bottle

6. Velcro Straps

7. DB9 Dust Cap

8. Transport Inlet Plug

9. Tripod Mount Screw Plug

10. Tubing

11. Manual (not shown)

Appendix B

Setting-Up

The setup of the Environmental Enclosure is an important part in allowing

reliable and accurate sampling of aerosols in a wide range of conditions. TSI

cannot ensure accurate measurements if any of the components are set up

incorrectly. Damage to the enclosure or its components can result if these

procedures are not followed.

WARNING

The DUSTTRAK monitor is not rated for intrinsic safety. The

DUSTTRAK monitor, with the Environmental Enclosure, must

never be operated under conditions where there is a risk of fire

or explosion.

Caution

The enclosure is designed to be water resistant to rain or spray.

It is not designed to be waterproof when immersed. Setting it in

a pool of water will result in flooding the inner compartment with

water. This will severely damage both your DUSTTRAK monitor

and battery pack. Do not set the Environmental Enclosure in

water!

Installing the Aerosol or Respirable Aerosol Inlet

There are two inlet assemblies, either of which may be stored inside the lid

of the Environmental Enclosure, allowing ambient aerosols to be sampled

efficiently in a wide range of conditions. Proper installation into its sampling

position ensures that the DUSTTRAK monitor measures an accurate ambient

aerosol mass concentration. Follow these instructions to install either of the

aerosol inlets:

• Hold the inlet assembly by the knurled section on the tube and remove it

from the holding bracket by unscrewing it (see Figure B-3).

Caution

Always hold the inlet assembly by the knurled portion of the

tube. Do not twist on the inlet assembly cap.

• Carefully slide the inlet through the upper mounting bracket and remove

the inlet from the box.

• Remove the Inlet Transport Plug from the top of the box.

Setting-Up 55

Figure B–3: Unscrew Inlet from Inner Bracket

• Thread the inlet assembly into upper inlet ring found on the top of the

Environmental Enclosure (See Figure B-4).

Figure B–4: Thread the Inlet into the Inlet Ring

Notes: Make sure that a thin film of vacuum grease is coating the O-ring

on the inlet tube to ensure a good seal before installing it.

Do not use the Respirable Aerosol Inlet in the rain. As it will

aspirate rainwater into the cyclone body.

Appendix B

Install Water Trap Bottle

The translucent bottle that attaches to the bottom of the inner inlet is used to

collect any water that is drawn into the sampled flow. This prevents water

from reaching the DUSTTRAK monitor and damaging it. The bottle is

installed on the Environmental Enclosure when it is shipped. If the bottle is

removed for cleaning, follow these precautions when re-installing:

• Before screwing the bottle into inner inlet ring, be sure that the O-ring

found in the bottom of the threaded hole is greased. This ensures an air-

tight seal.

• When threading the bottle into the inlet be careful not to damage its

threads. Figure B-5 demonstrates how to install the water trap correctly.

• Make sure the bottle has been tightened securely.

Figure B–5: Installing the Water Trap Bottle

Setting-Up 57

Correct Placement of Velcro Straps

The battery and the DUSTTRAK monitor are held in place by Velcro straps.

One end of each strap is secured into place. Figure B-6 shows the correct

placement of each strap (before the DUSTTRAK monitor and battery pack are

installed).

Figure B–6: Placement of Velcro Straps

Install DUSTTRAK Monitor into Environmental Enclosure

To correctly install the DUSTTRAK monitor follow the instructions below:

• Slip the free end of the Velcro strap through the slot on the DUSTTRAK

monitor portion of the main bracket (see Figure B-7).

Figure B–7: Slip Velcro Strap Through Slot in Bracket

Appendix B

• Slide the DUSTTRAK monitor under the Velcro and into the bracket with

the DUSTTRAK monitor inlet towards the center of the case (see

Figure B-8).

Figure B–8: Sliding DUSTTRAK Monitor into the Bracket

• Tighten the Velcro Strap around the DUSTTRAK monitor (see

Figure B-9).

Figure B–9: Tighten the Velcro Strap

Setting-Up 59

The DUSTTRAK monitor is now safely secured. When access is needed to the

keypad covered by the Velcro strap, loosen it to expose them. Be sure to

reattach the strap when done using the keypad.

Connecting Tubing

A length of tubing is provided to transport the aerosol from the external inlet

to the DUSTTRAK inlet. Before attempting to sample, make sure that this

tubing is securely fastened to the barbs from both of the inlets. When closing

the enclosure, make sure that this tube does not get kinked. The best way to

prevent this is to pull the tube towards the front of the box as you close it

(see Figure B-10).

Figure B–10: Keeping the Tube Unkinked

Supplying Power to the DUSTTRAK Aerosol Monitor

The Model 8520 DUSTTRAK Aerosol Monitor may be powered in one of two

ways when used with the 8520-1 Environmental Enclosure:

1. Using the standard internal battery pack (consisting of 4, C size

batteries)

2. Using the supplied external battery pack.

The internal battery pack will supply power for approximately 16 hours of

operation (may be less under cold conditions). This is adequate for single

shift (8-hour) monitoring, but will not work for 24-hour operation.

Appendix B

Caution

TSI does not recommend using the standard AC adapter when

operating outside. This device is not rated for external

exposure.

Using the External Battery Pack

The battery packs supplied with the Environmental Enclosure allow for

extended use of the DUSTTRAK monitor. These battery packs enable the

DUSTTRAK monitor to operate for at least 24 hours (even in cold

conditions). The battery packs should be rotated and properly charged

after each use, to ensure a prolonged lifetime (see Maintenance section

for further information). Make sure that the internal C size batteries are

installed correctly within the DUSTTRAK monitor to make it possible to

continue sampling when changing the external battery packs.

Install External Battery Pack

To correctly install the Battery Pack follow the instructions below:

• Slip the free end of the Velcro strap through the slot on the battery

pack portion of the main bracket (See Figure B-11).

Figure B–11: Slip Velcro Strap Through Slot.

• Slide the battery pack into the correct space in the sheet metal

bracket such that the leads are oriented up, and the PC board is in

the upper left hand quarter.

• Tighten the Velcro strap around the battery pack (See Figure B-12).

Setting-Up 61

Figure B–12: Tighten Velcro Around Battery.

• Connect the external battery pack to the DUSTTRAK monitor by

inserting the power plug protruding from the battery to the power

jack in the top of the DUSTTRAK monitor.

Mounting to a Surveyor Tripod

The Environmental

Enclosure may be

mounted to a standard

surveyor tripod equipped

with a 5⁄8”-11 threaded

stud. Mounting the

Enclosure on a tripod is

useful when doing

outdoor site monitoring.

Figure B-13 shows the

Environmental Enclosure

mounted on a surveyor

tripod.

Figure B–13: Enclosure

Mounted on a Tripod.

Caution

Do not place the Environmental Enclosure in direct contact

with the ground. The bottom of the Environmental Enclosure

contains an exhaust port that may allow water to enter the

enclosure, resulting in damage to the DUSTTRAK monitor.

Appendix B

Downloading a Data File

To download a file under normal data-logging operations, you would do the

following:

• Open the Environmental Enclosure.

• Discontinue sampling.

• Attach the supplied RJ45 to the RS-232 cable from the DUSTTRAK

monitor to a notebook computer.

• Download the data file using TRAKPRO software (refer to Chapter 2 of

this manual for further details).

Real-Time Monitoring

The Environmental Enclosure comes equipped with an external DB9

connector. This allows the DUSTTRAK monitor to be connected to a

computer for continuous real-time monitoring. To set up the Environmental

Enclosure for real-time monitoring follow these instructions:

• Connect the DUSTTRAK monitor to the DB9 connector, which is

mounted on the inside of the enclosure, using the Computer Interface

Cable provided with the DUSTTRAK monitor.

• Attach a standard 9-pin serial cable (not supplied) from the DB9

connector on the outside of the enclosure to a computer serial port. The

computer can be configured to query the DUSTTRAK monitor when in a

terminal emulator mode. See Application Note ITI-044 for more

information on these commands.

Setting-up TRAKPROTM Data Analysis Software

Information on setting-up and using TRAKPRO software can be found in

Chapter 2 of this manual.

Setting-Up 63

Transporting the Environmental Enclosure

When transporting the Environmental Enclosure it is important to store its

components correctly. The following steps should be taken to ensure that no

damage is done to the enclosure or its components during transportation:

Attention

The Environmental Enclosure is designed to protect equipment

during stationary sampling only.

Do not transport or ship equipment inside the Environmental

Enclosure.

• Unscrew the aerosol inlet from the top of the case, and install it into the

inlet-mounting bracket inside the lid of the enclosure.

• Insert the Inlet Transport Plug into the opening in the inlet ring in the

top of the box.

• Empty any water from the water trap.

• Remove DUSTTRAK monitor and battery pack.

• If mounted on a tripod, take the enclosure off the tripod and screw in the

tripod mount plug.

Wiring the Analog/Alarm Cable in the Enclosure

You may desire to install the Analog/Alarm cable to the DUSTTRAK monitor,

when operated inside the Environmental Enclosure. The serial connector,

installed in the side of the enclosure, may be used for this purpose.

Note: If additional penetrations are made into the wall of the enclosure,

you should take precautions to install a sealing (water-tight)

connector around the cable.

64 Appendix B

Operation

Overview

The DUSTTRAK Environmental Enclosure can be used in conjunction with

the DUSTTRAK monitor for many different applications. Its primary use is in

outdoor applications to give the DUSTTRAK monitor protection from the

elements and the ability to sample efficiently in different wind speeds. The

enclosure and extended-life battery may also be advantageous in indoor

industrial applications, to provide additional security and protection to the

DUSTTRAK monitor.

How to Properly Orient the Environmental Enclosure

The Environmental Enclosure should be set up in a location where it can

sample the particles of interest. It should be placed “out in the open,” away

from obstructions which may affect wind currents. It should not, for

example, be placed at the corner of a building, which would cause swirling

wind currents and result in poor particle sampling.

The Environmental Enclosure should be used in wind conditions with speeds

of 22 mph or less to obtain the most accurate readings. An increase in wind

speed over 22 mph can decrease the sampling efficiency of the inlet to under

the efficiency specified by PM-10 standards. If wind gusts of over 22 mph

are present, the data collected is still valid, but be aware that the readings

will be slightly lower than the actual mass concentration of aerosol present.

See Application Note ITI-060 for more information on the wind speed

dependency of the external inlet’s sampling characteristics.

Changing and Re-charging the Battery Packs

The battery pack within the Environmental Enclosure should be changed

every 24 hours of use during the daily maintenance check described in the

Maintenance Section. A voltage cutoff switch will cut the power to the

DUSTTRAK monitor when the battery voltage reaches 5.1 V. This ensures

that the battery does not become deeply discharged. Preventing this

condition will prolong the life of the battery.

Receiving Data from the DUSTTRAK Aerosol Monitor

The DUSTTRAK monitor records data in either the manual sampling mode

(LOG 1) or the programmable modes (LOG 2, LOG 3). See the DUSTTRAK

User Manual for more information on setting up the logging modes. The

data can be downloaded by opening the Environmental Enclosure lid,

attaching the supplied RJ45/RS-232 cable from the DUSTTRAK monitor to a

computer COM port, and using the RECEIVE DATA command within the

TRAKPRO software.

Operation 65

If desired, the DUSTTRAK RJ45 cable may be attached directly to the inside

of the DB9 connector located on the side of the Environmental Enclosure. A

serial cable (not supplied) may then be attached from the outside of the DB9

connector to the computer COM port.

Note: In order to download a data file the DUSTTRAK monitor cannot be

in a sampling mode.

The primary use for the external DB9 connector is to facilitate real-time data

monitoring. An external computer or data logger can be directly attached to

the DUSTTRAK monitor, while still keeping the instrument inside its

weatherproof enclosure. The DUSTTRAK monitor can be queried through a

set of ASCII commands to provide periodic information.

Zeroing the DUSTTRAK Aerosol Monitor

The DUSTTRAK monitor should always be zeroed before beginning a

sample. See the instructions in Chapter 3 of this manual for more

information. If possible, the instrument should be zeroed under stable

ambient temperature conditions (since variations in temperature will have a

small impact upon the DUSTTRAK monitor readings). If this is not possible

(for example, 24-hour outdoor sampling, with wide temperature swings) the

instrument should be kept closed inside the Environmental Enclosure. The

thermal mass of the Enclosure will dampen out the affect of temperature

swings, radiant heat, etc.

Note: See the DUSTTRAK monitor Specifications in Appendix A for more

information on the temperature dependence.

In nearly all cases, the temperature impact upon the DUSTTRAK monitor

reading is very small in comparison to the ambient particle concentration.

Setting the Flow Rate

The aerosol inlet on the Environmental Enclosure was designed to operate at

a 1.7 liters/minute flow rate. Before each sample, the flow rate should be

verified and/or adjusted as described in the DUSTTRAK monitor Maintenance

section (Chapter 4).

Locking the Environmental Enclosure

To avoid theft of the DUSTTRAK monitor, when left inside the Environmental

Enclosure, a padlock should be used to lock the box. There are two holes on

the front of the box that allow for a standard padlock to be attached. A

padlock is not supplied with the 8520-1.

Appendix B

Checklist for Sampling with the Environmental Enclosure

Before beginning a sample check to see that all of the following conditions

are satisfied:

• The flow rate is set to 1.7 liters/minute.

• All components are properly installed into the enclosure as described in

the Setup section.

• The DUSTTRAK monitor has been zeroed at the temperature at which it

will be sampling (if possible).

• The Environmental Enclosure has been put in a place clear of any

obstructions that will affect the flow around the enclosure (putting it on

a tripod is optional).

• The Enclosure is not resting directly on the ground (no standing water).

• The DUSTTRAK monitor has been set to the appropriate logging mode.

• The Enclosure is locked shut to prevent theft or vandalism to

instrument.

• Plans have been made to check for maintenance and data collection

every 24 hours after initial set up.

After the completion of monitoring, follow the procedures for transporting

the Environmental Enclosure in the Setting-Up section of this appendix. This

prevents the instrument from becoming damaged.

Maintenance 67

Maintenance

Daily Maintenance Checks

The DUSTTRAK monitor should be checked a minimum of once a day to

change the battery pack and make sure the instrument is operating properly.

A visual inspection of the instrument and case can ensure that the water trap

is empty, the sampling inlet is unobstructed and the tubing is not kinked.

Cleaning the Aerosol Inlet

Under normal operating conditions, the external aerosol inlet will remain

clean and unobstructed. Under very dirty conditions; however, the inlet may

become obstructed with vegetative debris or insects. To ensure the inside of

the aerosol inlet is clean, periodically blow compressed air through the

bottom of the inlet.

Caution

Do not disassemble the Environmental Enclosure aerosol inlet

for any reason. It is not designed for field service and

reassembly.

Cleaning the Respirable Aerosol Inlet

Follow the same procedure found in Chapter 4 of this manual in the section

entitled “Cleaning the Cyclone.”

When to Change the Battery

The battery packs are designed to provide power to the DUSTTRAK monitor

for a minimum of 24 hours, even under cold ambient conditions. To ensure

uninterrupted operation, the packs should be replaced daily. If a battery pack

has been forgotten and left connected to a running DUSTTRAK monitor, the

extended-life battery will automatically quit delivering current to the

DUSTTRAK monitor after its voltage drops below 5.1. At this point the

internal, C-cell battery pack automatically switches over and begins

powering the DUSTTRAK monitor with no loss of data.

Note: An internal battery backs up the DUSTTRAK monitor memory. The

logged data will not be lost even if both battery packs lose power.

Replacing the Battery Pack

When changing the battery pack, you do not have to interrupt the sampling

process as long as fresh batteries are installed in the DUSTTRAK monitor’s

internal battery compartment. Replace the discharged external battery with

the newly charged one, taking care to secure the fully charged battery with

the Velcro strap. When closing the case make sure that the tubing does not

become kinked. Pull the tubing in front of the battery bracket while closing

Appendix B

the case to prevent this from occurring. To prevent long term damage and

loss of capacity recharge the battery promptly after removing it.

Recharging the Battery Packs

The following steps should be followed to correctly recharge the battery

packs:

• Disconnect the battery pack from the DUSTTRAK monitor and remove it

from the Environmental Enclosure.

• Take it to a protected area where it can be charged undisturbed for 12 to

15 hours.

• Check on the bottom of the charger to see that the red voltage switch is

set appropriately to either 115V or 230V.

• Supply power to the charger. The green LED lights on the front of the

charger.

• Insert the power plug protruding from the battery pack into the output

jack attached to the charger. The charger will now quick-charge the

battery. This is indicated by an illuminated yellow LED.

• Charging is complete when the yellow LED shuts off. A trickle charge

will maintain the full charge. A fully discharged battery will require up

to 15 hours to fully recharge.

Note: Do Not Store A Battery Pack That Has Not Been Fully Charged.

Storing a discharged battery for any length of time will negatively

affect the battery life.

Battery Pack Life

Lead acid batteries have a finite life of about 300 charging cycles. This

means that the two battery packs last around two years without need of

replacement. This assumes that the batteries are being used to run a

DUSTTRAK monitor every day, and that they are properly cared for and

rotated daily. To help track battery lifetime, an In-service Date sticker has

been attached to the front of the battery pack to inform you when each

battery pack was shipped from TSI. Replacement battery packs may be

ordered from TSI. See the previous section of this appendix on “Parts

Identification” for more information.

Emptying the Water Trap

If any water or moisture has accumulated in the water trap, be sure to

unscrew the water trap from the internal inlet and empty it. Take care when

removing and reinstalling the bottle to prevent damage to the threads. The

bottle must be securely hand tightened to seal against the O-ring to prevent

leaking.

Maintenance 69

Storage Precautions

This instrument must be stored in a location where the temperature remains

between –20 and 60°C (–4 and 140°F).

Appendix B

Troubleshooting the Environmental Enclosure

The table below lists the symptoms, possible causes and recommended

solutions for common problems encountered with the DUSTTRAK

Environmental Enclosure.

Symptom Possible Cause Corrective Action

DUSTTRAK

monitor does

not turn on.

Uncharged battery.

External battery pack not

plugged to DUSTTRAK

monitor.

Bad battery pack (no

longer able to be

recharged).

Connect to charger and wait

until the yellow LED turns off.

Plug battery power plug into

the power jack in DUSTTRAK

monitor.

Replace with new battery pack.

Readings are

unusually

low.

Zero was not checked on

DUSTTRAK monitor.

Plugged external inlet.

Sampling in wind speeds

over 22 mph.

Enclosure located near an

object that obstructs the

flow.

Leak in the inlet.

Re-zero DUSTTRAK monitor at

desired sampling conditions.

Remove inlet from the

Enclosure; blow out debris with

compressed air. Rinse with

clean air, if needed. DO NOT

DISASSEMBLE COVER ON

INLET ASSEMBLY.

Take off water trap bottle and

clean all exposed surfaces.

DUSTTRAK monitor will under-

sample slightly in high wind

speeds. No correction possible.

Move the Environmental

Enclosure into a more open

area.

Make sure the upper inlet

assembly and the water trap are

screwed in tightly.

Make sure tubing is secured on

the enclosure barb and the

DUSTTRAK monitor.

Troubleshooting the Environmental Enclosure 71

Symptom Possible Cause Corrective Action

Readings are

unusually

low (cont.).

Leak in the inlet.

(cont.) Make sure inlet assembly

O-ring is in place.

Re-grease the O-rings sealing

the inlet assembly and the

water trap bottle.

DUSTTRAK

monitor

Display

reads

“MEMORY

0%”.

Memory is full. Download memory to a PC if

desired then clear memory.

Specifications: Environmental Enclosure

Specifications are subject to change without notice.

Sampling Conditions:

Operating Temperature: . 0 °C to 50 °C (32 °F to 120 °F)

Wind Speed: .................... 0 m/s to 10 m/s (0 mph to 22.5 mph)

Aerosol Concentration

Range: ............................. 0.001–100 mg/m3 (calibrated to respirable

fraction of standard ISO 12103-1, A1 test

dust)

Storage Temperature:...... -20 °C to 60 °C (-4 °F to 140

Zero stability:.................... ±0.001 mg/m3 over 24 hours using

10-second time-constant

Particle size range: .......... 0.1–approximate 10 µm (Upper limit is

dependent on flow rate)

Flow rate: ........................ 1.7 L/min.

Temperature coefficient: .. +0.001 mg/m3 per °C (for variations from

temperature at which DUSTTRAK monitor

was zeroed)

Physical:

External dimensions:........ 406 mm x 330 mm x 191 mm

(16 in. x 13 in. x 7.5 in.)

Weight (with battery and

DUSTTRAK monitor): ......... 7.2 kg (15.8 lb.)

USER MAINTENANCE:

Maintenance Check/

Data Collection:................ Daily

Clean inlet: ....................... Weekly or daily if concentrations of over

30 mg/cm3 are measured.

Re-grease O-rings: .......... As needed

Power Requirements:

External Battery Pack: ..... 6 VDC, 10 Ah

Battery run-time: .............. 24–60 hours (typical)

Index

AC adapter, 3, 5

accessories, 3

adapter, 1

adjusting flow rate, 43

advanced modes, 26

aero filter, 3

aerosol monitor, 1

accessories, 3

components, 2

connecting to computer, 6

keypad functions, 11

maintenance, 37

parts identification, 2

setting up, 5

specifications, 49

troubleshooting, 45

alarm output, 22

specifications, 23

alarm output function default, 23

alarm setpoint

programming, 24

screen, 24

alarm switch, 23

alarm threshold, 23

alkaline batteries, 1

analog output, 21

analog output range screen, 21

analog output/alarm connector, 1

analog output/alarm thumb screw, 2

analog/alarm cable, 3

analog/alarm connector pin-outs, 9

analog/alarm output connector

connecting, 9

arrow keys, 17

available memory, 27

available time constants

programming, 13

battery cover, 2

battery installation, 5

baud rate, 7

calibrate key, 17

calibrated data

converted stored data, 35

calibration certificate, 1

calibration factor

for specific aerosol, 32

setting from keypad, 33

carrying case, 1

channels, 27, 28

Class I, v

cleaning

cyclone, 44

inlet and sample tube, 40

inlet conditioner, 39

clear memory key, 15

communications port

setting up, 6

components, 2

computer cable, 1, 3

connecting analog/alarm output

connector, 9

connecting portable printer, 8

converting stored data to calibrated

data, 35

cotton swab, 1

custom calibrations, 31

cyclone, 3, 18, 44

cleaning, 44

respirable mass sampling, 18

cyclone holder clip, 2

data file

environmental enclosure, 62

data port, 2

determining calibration factor for

specific aerosol, 32

display, 2

display/keypad lockout switch, 17

connector, 2

Index

environmental enclosure, 51

aerosol inlet, cleaning, 67

aerosol monitor, 57

aerosol or respirable aerosol

inlet, 54

analog/alarm cable, 63

battery pack, 64

battery pack, recharging, 68

battery pack, replacing, 67

battery, charging, 67

checklist for sampling, 66

data file, 62

external battery pack, 60

flow rate, setting, 65

internal battery pack, 60

locking, 65

maintenance, 67

operation, 64

orienting, 64

parts identification, 52

power to aerosol monitor, 59

real-time monitoring, 62

receiving data, 64

respirable aerosol inlet,

cleaning, 67

setting up, 54

spare parts, 51

specifications, 73

storage precautions, 69

surveyor tripod, 61

transporting, 63

troubleshooting, 70

tubing, 59

unpacking, 51

velcro straps, 57

water traip, emptying, 68

water trap bottle, 56

zeroing, 65

exhaust port, 2

external power socket, 2

flow adjustment screw, 2

flow rate

adjusting, 43

setting, 43

flowmeter, 3

G–H

grease, 3

I–J

impactor plate, 1, 3

inlet assembly, 40

inlet conditioner, 19

cleaning, 39

inlet nozzle, 1, 3

inlet tube

cleaning, 40

installing batteries, 5

instrument setup, 6

internal filter

replacing, 41

internal filter element, 1

internal filter elements, 3

keypad, 2

functions, 11

log interval, 27, 28

log mode, 15

logging interval key, 15

logging intervals

programming, 16

maintenance, 37

environmental enclosure, 67

schedule, 37

manually setting real-time clock, 8

memory considerations, 31

Model 8520. (see aerosol monitor)

newcal, 33

nozzle

10 µm, 20

number of tests, 27, 28

number of tests logged, 27

Nylon Dorr-Oliver cyclone. See also

cyclone

Index 77

oldcal, 33

on/off key, 11

operation, 11

environmental enclosure, 64

options menu, 34

P–Q

packing list, 1

parts identification, 2

percent memory required, 27

plastic tubing, 1

portable printer, 8

pre-programmed samples, 30

print key, 14

programming

advanced modes, 26

alarm setpoint, 24

available time constants, 13

date/time, 8

real-time clock

manually setting, 8

setting, 7

real-time monitoring

environmental enclosure, 62

remote sampling, 17

replacing internal filter, 41

respirable mass sampling with

cyclone, 18

re-zeroing, 38

safety information, v

sample inlet nozzle, 2

sample key, 12

sample nozzle cleaning brush, 1

sample nozzle removal tool, 1

sample protocol, 29

sample tube

cleaning, 40

sample tube cleaning brush, 3

sample tube removal tool, 3

sampling mode key, 14

log mode, 15

survey mode, 14

sensitivity, 49

serial number, 27

serial port, 7

service policy, 2

setting custom calibration factor

keypad, 33

setting custom calibration factors

TRAKPRO software, 34

setting flow rate, 43

setting real-time clock, 7

setting up, 5

communications port, 6

environmental enclosure, 54

instrument, 6

TRAKPRO software, 6

shoulder strap, 1, 3

specifications, 49

alarm output, 23

environmental enclosure, 73

start date, 27, 28

start time, 27, 28

statistics key, 13

storage precautions, 44

survey mode, 14

test length, 27, 28

time between tests, 27, 28

time constant key, 12

TRAKPRO software

programming date/time, 8

programming logging intervals, 16

setting custom calibration

factors, 34

setting up, 6

troubleshooting, 45

environmental enclosure, 70

U–V

unpacking, 1

environmental enclosure, 51

upgrading, 24

using cyclone, 18

using inlet conditioners, 19

Index

W–X–Y

warning, v

warranty, 2

wrist strap, 1, 3

zero checking, 38

zero filter, 1

TSI Incorporated

500 Cardigan Road, Shoreview, MN 55126 U.S.A.

Telephone: 1-800-874-2811 (toll-free) or 651-490-2811, Fax: 651-490-3824,

E-mail: answers@tsi.com

8520 DustTrak Aerosol Monitor Operation And Service Manual TSI Dust Trak

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