Hanna Instruments Panel Mounted Microprocessor Based Chlorine Analyzer Pca 300 Users Manual Manpca300R1

2015-02-09

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PCA 300/PCA 301

Series

Panel-mounted,

Microprocessor-based

Chlorine Analyzers

Instruction Manual

TABLE OF CONTENTS

PRELIMINARY EXAMINATION . . . . . . . . . . . . 4

GENERAL DESCRIPTION. . . . . . . . . . . . . . . . 5

MECHANICAL DIMENSIONS . . . . . . . . . . . . 6

FUNCTIONAL DESCRIPTION . . . . . . . . . . . . 7

LED DISPLAY, INDICATORS AND KEYBOARD . 8

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . 10

OPERATING DESCRIPTION . . . . . . . . . . . . . 12

Method of analysis . . . . . . . . . . . . . . . . 13

INITIAL PREPARATION AND INSTALLATION . 14

Installation Personnel . . . . . . . . . . . . . . 14

Location of the Instrument . . . . . . . . . . . 14

Hydraulic Connections . . . . . . . . . . . . . 14

Installing the Input Filter . . . . . . . . . . . . 16

Installing the Pump Tubes . . . . . . . . . . . 16

Electrical Connections . . . . . . . . . . . . . 18

Dear Customer,

Thank you for choosing a Hanna Product.

This instruction manual has been written for the following products:

PCA 300 Free Chlorine Analyzer with features such as alarm functions, user-se-

lectable sampling periods, LED warning indications, recorder outputs,

RS232 port and a Nema 4X, 12 and 13 enclosure.

PCA 301 Total Chlorine Analyzer with features such as alarm functions, user-

selectable sampling periods, LED warning indications, recorder outputs,

RS232 port and a Nema 4X, 12 and 13 enclosure.

PCA 300A Same as PCA 300 except for the RS232 port which is not supplied.

PCA 301A Same as PCA 301 except for the RS232 port which is not supplied.

PCA 300AC This OEM version is exactly the same as PCA 300 except for the

RS232 port and the enclosure.

PCA 301AC This OEM version is exactly the same as PCA 301 except for the

RS232 port and the enclosure.

Please read this instruction manual carefully before using the instrument. It will pro-

vide you with the necessary information for the correct use of the instrument, as well as a

more precise idea of its versatility.

These instruments are in compliance with directives. The PCA 300 and PCA 301 are

also registered by Underwriters Laboratories Inc. (UL approved).

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Instrument Power On . . . . . . . . . . . . . . . . 22

Display Brightness . . . . . . . . . . . . . . . . . . 22

Minimum and Maximum Concentration . . . 23

Sampling Rate . . . . . . . . . . . . . . . . . . . . 24

Priming the Reagent System . . . . . . . . . . . 24

ANALYZER PROGRAMMING . . . . . . . . . . . . . 26

Proportional Dosing . . . . . . . . . . . . . . . . 26

Concentration Setpoint Alarm Setting . . . . . 28

Recorder Output Span Setting . . . . . . . . . . 30

Standby Mode . . . . . . . . . . . . . . . . . . . . 32

Recorder Output Calibration. . . . . . . . . . . 33

Recorder Output Limits Check . . . . . . . . . . 40

Adjusting the Light Source . . . . . . . . . . . . 42

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . 44

Calibration Requirement . . . . . . . . . . . . . . 44

Hydraulic System . . . . . . . . . . . . . . . . . . . 44

Reagents Supply . . . . . . . . . . . . . . . . . . . 44

Changing Peristaltic Pump Tubing . . . . . . . 46

Tubing Replacement . . . . . . . . . . . . . . . . 47

“Y” Strainer Cleaning . . . . . . . . . . . . . . . 47

Cleaning Measurement Cell . . . . . . . . . . . 47

Relay Test . . . . . . . . . . . . . . . . . . . . . . . . 48

Calibration Procedure . . . . . . . . . . . . . . . 48

ERROR CODES . . . . . . . . . . . . . . . . . . . . . . . 50

OPERATIONAL & DIAGNOSTIC CODES . . . . . 53

INTERFACE WITH PC. . . . . . . . . . . . . . . . . . . 55

ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . 56

WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . 57

CE DECLARATION OF CONFORMITY . . . . . . . 59

All rights are reserved. Reproduction in whole or in part is prohibited without the

written consent of the copyright owner, Hanna Instruments Inc., 584 Park East Drive,

Woonsocket, Rhode Island, 02895 , USA.

PRELIMINARY EXAMINATION

Remove the analyzer from the packing material and examine

it carefully to make sure that no damage has occurred dur-

ing shipping. If there is any noticeable damage, notify your

Dealer immediately.

Each analyzer is supplied complete with:

• 2 reagent bottles (1 indicator and 1 buffer solution)

(PCA 300 and PCA 301 only)

• 2 reagent bottle caps (PCA 300 and PCA 301 only)

• 1 DPD compound powder (PCA 300 and PCA 301

only)

• tubing

• mounting brackets

Note Save all packing materials until you are sure that the instru-

ment functions correctly. Any damaged or defective items must

be returned in their original packing materials together with

the supplied accessories.

WARNING The PCA300 and PCA 301 series of Chlorine Analyzers are

not designed for use with samples that are inflammable or

explosive in nature. If any sample solution other than water is

used with these products, test the sample/product compat-

ibility to assure user safety and proper product performance.

Safety Precautions Please take the time to read the safety precautions carefully

wherever they appear in this manual. They are provided to

prevent personal injury and damage to the instrument. This

safety information applies to the operators and service per-

sonnel and the following two captions are used:

CAUTION: identifies conditions or practices that could re-

sult in damage to the instrument or persons;

WARNING: identifies conditions or practices that could

result in personal injury or loss of life.

Note Because of the inherent dangers in handling chemical

samples, standards and reagents, HANNA Instruments

strongly recommends the users of this product review the

Material Safety Data Sheets and become familiar with safe

handling procedures and proper usage prior to handling

any chemicals.

GENERAL DESCRIPTION

The Hanna PCA 300 and PCA 301 series of Chlorine Ana-

lyzers are microprocessor-controlled, process analyzers which

continuously monitor a sample stream for Chlorine content.

The PCA 300 series monitor Free Chlorine and the PCA 301

series Total Chlorine in the 0 to 5 mg/L (ppm) range.

In the DPD Colorimetric method, N, N-Diethyl-p-phenylene-

diamine indicator and a buffer are mixed with the sample.

The resulting chemical reaction causes a magenta color to

form. The color intensity is proportional to the concentration

of Chlorine. The color intensity is measured photometrically

(with a light beam and a photodetector) and converted to

Chlorine concentration, in mg/L, which is displayed on the

front panel, four-digit, LED display.

Indicator and buffer reagent bottles are placed directly into

the instrument case. With a sampling period of 5 minutes,

reagents need to be replenished about once a month. The

reagent bottles are easily visible through the transparent win-

dow to allow the operator to check the reagent levels.

The cases of PCA 300 and PCA 301 meet NEMA 4X, 12

and 13 standards. Molded fiberglass polyester has outstand-

ing chemical and temperature resistance.

External mounting feet provide wall mounting capability and

a seamless gasket assures a watertight and dust-tight seal.

The electrical and hydraulic connections (except for

PCA 300AC and PCA 301AC OEM models) are made

through the side of the enclosure.

The front cover is secured with two lockable

latches.

Two selectable chlorine level setpoints can be set by the op-

erator: a proportional dosing setpoint and an alarm setpoint.

Both setpoints control a SPDT relay.

The proportional dosing setpoint analyzers is user-selectable

with a delta from 0.1 to 2.0 mg/L (ppm).

The alarm level can be set by the user to be an “activate-

if-lower-than” setpoint or an “activate-if-greater-than” setpoint.

A system alarm feature provides relay activation to signal

need for operator intervention.

The PCA 300 and PCA 301 analyzers can supply data to

an external computer through an RS232C output connec-

tion.

Voltage output levels of 0-10mV, 0-100mV, 0-1V or a cur-

rent output of 4-20 mA are selectable to drive an external

device such as a chart recorder or an external regulator.

Recorder span minimum and maximum values in mg/L

are programmable by the operator through the keyboard.

MECHANICAL DIMENSIONS *

Note The enclosure is not supplied with PCA 300AC or

PCA 301AC

* Wall Mount Dimensions in mm & inches

FUNCTIONAL DESCRIPTION

1. Alarms Indicators

2. LED Display

3. Keyboard

4. Alarms Output

5. Recorder Output

6. Peristaltic Pump

7. Access Point to Cell

8. Measuring Cell

9. Output Port

10. Drain Tube

11. Drain Port of Measuring Cell

12. Drain Port Valve

13. Sample Tubing

14. Buffer Bottle

15. Indicator Bottle

16. Sample Port

17. Incoming Pressure Regulator

18. Electrovalve

19. Reagent Tubing

20. Line Input

21. Pressure Regulator Output Port

Unplug the meter before any electrical connection.

LED DISPLAY, INDICATORS AND KEYBOARD

DIGITAL DISPLAY

The digital readout will indicate the Chlorine concentration of

the last sample measured in milligrams per liter (mg/L) dur-

ing normal operation.

Only when a key is pressed to execute some other function,

will the concentration reading be interrupted. In this case, the

Chlorine mg/L indicator is turned off.

If the Chlorine concentration is above 5 mg/L, the display will

blink.

mg/L CHLORINE INDICATOR

During normal operation, this green indica-

tor will be on continuously, indicating that the

LED is displaying Chlorine concentration. Dur-

ing the diagnostic or other modes this indicator

will be off.

DOSE INDICATOR

When proportional dosing is active, the dose

LED will be on and the corresponding relay

closes. This LED turns off automatically when

the proportional dosing stops.

ALARM INDICATOR

This LED will be on when the programmed

alarm setpoints are exceeded. The alarm

LED turns off automatically when the alarm

condition disappears.

SYSTEM ERROR INDICATOR

This LED is lit when a system error has oc-

curred. If the situation persists for more than

a few samples, the operator should notify

maintenance personnel for investigation of the

problem. When the meter is in system error

mode, the user can directly access the diag-

nostic code that indicates the source of error. The analyzer

continues to perform the sampling operations during an alarm

condition.

KEYBOARD DESCRIPTION

The Reset key clears system alarm and restarts the analyzer.

The Max/Min key alternately displays maximum and mini-

mum Chlorine concentration levels since last reset.

The RIGHT arrow key is used to shift digit position within a

displayed number.

The UP arrow key is used to scroll up a displayed digit: 0, 1,

2 ..... 9, 0, 1, 2, etc.

The DIAG key is used to select programming and self-diag-

nostic modes.

The Rec.Max key is used to enter and recall maximum value

of the recorder output in mg/L.

The Rec.Min key is used to enter and recall minimum value

of recorder output in mg/L.

The Set Point key is used to enter and recall concentration

setpoint.

The Set Alarm key is used to enter and recall concentration

alarm setpoint.

The Set Time key is used to enter and recall time intervals

between two consecutive samples.

RESET

MAX

MIN

DIAG

REC.

MAX

REC.

MIN

SET

TIME

SPECIFICATIONS

PCA 300 PCA 301

Range 0.00 to 5.00 mg/L 0.00 to 5.00 mg/L

Free Cl2Total Residual Cl2

Resolution 0.01 mg/L

Accuracy ±8% of reading or ±0.05 mg/L

whichever is greater

Typical EMC ±0.05 mg/L

Deviation

Minimum 0.05 mg/L

detectable level

Repeatability ±0.05 mg/L

Response time Related to the sampling time selected.

Typical for a full scale step change and

5 minutes between two consecutive

samples: one sampling cycle for 90%

response and two sampling cycles for

100% response

Sampling rate Adjustable from 3 to 102 minutes

Sample inlet 0.07 bar (1psig) min., 4 bar (57.2 psig)

pressure max. An internal regulator reduces

pressure from 4 bar (57.2 psig) to

1 bar (14.3 psig)

Sample flow Flow rate of 300 mL/min is recom-

range mended. Minimum and maximum

allowed are 100 mL/min and

500 mL/min, respectively

Sample 5 to 40°C (41 to 104°F)

temperature range

Interferences Oxidizing agents such as: Iodine,

Bromine, Ozone, Chlorine Dioxide,

Permanganate, Hexavalent Chromium.

Hardness must not exceed 1000 mg/L

as CaCO3. Alkalinity must not exceed

400mg/L for Free Chlorine analysis (PCA

300) or 700mg/L for Total Chlorine

analysis (PCA 301)

Operating 5 to 40°C (41 to 104°F)

temperature range

Recorder output Selectable 0-10mV, 0-100mV, 0-1V or

4-20 mA. Output span is settable

anywhere in the 0-5 mg/L range

Dosage Proportional on one point with a delta

adjustable at 0.1, 0.2, 0.3, 0.4, 0.5,

0.6, 0.7, 0.8, 0.9, 1.0, 1.5, 2.0 mg/L,

equipped with a SPDT relay with

contacts rated for resistive load: 5 A at

250VAC or 5 A at 30VDC; inductive

load: 2 A at 250VAC or 3 A at 30VDC.

Alarms One sample concentration alarm

adjustable as minimum or maximum

acceptable value, equipped with a

SPDT relay with contacts rated for

resistive load: 5 A at 250VAC or 5 A at

30VDC; inductive load: 2 A at 250VAC

or 3 A at 30VDC.

One system error alarm

Power 20VA at 115VAC/230VAC;

requirements 50/60 Hz

Sample inlet 12 mm (1/2”) male NPT fitting

connection

Drain connection 10 mm (3/8”) barb fitting

Case NEMA-4X molded fiberglass polyester

instrument enclosure with transparent

GE Lexan window (not PCA 300AC and

PCA 301AC)

Dimensions 318 x 267 x 159 mm

(12.5 x 10.5 x 6.25")

Weight 5 Kg (11 lb.)

OPERATING DESCRIPTION

Referring to the drawing on page 7 and the Fluidic Dia-

gram on page 13, the Sample Line is connected to the

instrument at the Sample Port (#16); an internal Regulator

(#17) reduces the inlet pressure from a maximum of 4 bar

(57.2 psig) down to 1 bar (14.3 psig); from the Regulator

a nylon tube is connected to the input of the Electrovalve

(#18). The output of the valve goes to the Drain Port (#11

in PCA 300 and PCA 301 only) and then to the Measur-

ing Cell (#8). An optional Filter can be installed to the sample

port if the stream is excessively turbid.

The sample coming from the line normally flows through the

Measuring Cell. It goes out from the Measuring Cell through

the Drain Tube (#10) and the Output Port (#9).

The Measuring Cell is accessible from the port placed on the

top (#7) for speedy cleaning and maintenance.

During the time between two successive sampling, the ana-

lyzer solenoid input valve is open to allow sample flow to

flush the colorimeter cell. Every 3 to 102 minutes (user se-

lectable), the valve closes stopping the sample flow and

leaving the sample cell full of fresh sample. Cell volume is

controlled by an overflow gateway.

As the sample inlet valve closes, a series of measurements

(with LED on and off) of the unreacted sample is taken to

determine an average Blank level prior to reagent addi-

tion. The measurement of sample blank signal permits

compensation for any turbidity or natural color, and pro-

vides the zero reference point for the measurement.

The two channel Peristaltic Pump (#6) starts rotating caus-

ing a precise quantity of buffer and indicator (#14 and

#15) to enter the colorimeter sample cell where a mag-

netically coupled stirrer mixes the reagents with the sample.

After a delay for the development of color, a series of mea-

surements (with LED on and off) are taken (Sample level)

to determine an average Chlorine concentration measure-

ment. The reacted sample signal is then measured and

displayed.

This sequence is repeated every 3 to 102 minutes (user-se-

lectable).

METHOD OF ANALYSIS

Free available Chlorine (monitored by the PCA300 series)

oxidizes the DPD indicator reagent at a pH between 5.5 and

6.0 to form a magenta-colored compound. The intensity of

the resulting color is proportional to the concentration of Chlo-

rine in the sample. The purpose of the buffer solution is to

maintain the proper pH.

To measure Total Residual Chlorine (Free available Chlorine

plus combined Chloramines) the PCA301 series adds Po-

tassium Iodide. The Chloramines in the sample cause

iodide ions to become iodine which then act with free Chlo-

rine to oxidize the DPD indicator. After the chemical reaction

is complete, the optical signal at 555 nm is compared to

the signal measured through the sample (before the re-

agents were added). From these measurements Chlorine

concentration is calculated.

Fluid Diagram of the Analyzers

INITIAL PREPARATION AND INSTALLATION

INSTALLATION PERSONNEL

Installation of the PCA 300 and PCA 301 family of Chlo-

rine Analyzers should be undertaken by persons with technical

knowledge of the dangers associated with chemical exposure

and electrical shock.

Hanna Instruments assumes persons performing the instal-

lation tasks are aware of the appropriate safety procedures.

Review the Material Safety Data Sheets (MSDS) before han-

dling the supplied chemical reagents.

LOCATION OF THE INSTRUMENT

Analyzer Location

Locate the analyzer as close as is reasonably possible to

the point where the sample is withdrawn from the product

stream (referred to as the “sampling point”). This practice

will minimize the amount of time it takes for the sample to

flow to the analyzer from the sampling point. The result is

improved response time of the analyzer to changes in Chlo-

rine contents.

The instrument should be mounted indoors, out of direct

sunlight. Instrument operating temperature is 5 to 40°C

(41 to 104°F).

Sampling Point Location

Locate the sampling point to obtain a truly representative

sample from the product stream. For example, be sure the

sampling point is well downstream from a Chlorine feed.

This assures that adequate mixing and reaction of the

Chlorine before a sample is extracted.

HYDRAULIC CONNECTIONS

Note Hydraulic connections should be installed only by qualified

personnel to assure conformity to applicable plumbing codes.

Sample Line Installation

Sample lines of 3 mm (1/8") ID tubing are recommended to

keep the sample volume in the tubing to a minimum. This

reduces lag time for the sample flow from the sampling point

to the instrument. In any case note that sample should reach

the measuring cell in less then 100 seconds.

Direct routing of sample lines is also recommended.

If the large process pipes are horizontal, taps should be in-

serted vertically in the middle of the pipe to avoid pulling

sediment from the bottom or air bubbles from the top of

the pipe into the sample line.

A 1/2” BSP sample input fitting allows direct connection to

the optional input filter.

Sample line pressure should be between 0.07 and 4 bar (1

and 57.2 psig) with an ideal pressure of 0.7 bar (10 psig).

Drain Line Installation

The drain hose fitting is a 20 mm (3/4”) hose barb on the

bottom of the instrument enclosure. An air gap between the

end of the drain hose and the drain is recommended to prevent

any back flow into the instrument in the event of drain block-

age.

Return Line Installation

The return hose fitting is a 12 mm (1/2”) hose barb on the

bottom of the regulator output port and should always be

connected even when pressure is below 1 bar.

INSTALLING THE INPUT FILTER

In order to ensure maximum accuracy of measurements, it is

recommended to have always clear sample, with suspended

particles smaller than 0.5 µm. This can be achieved by in-

stalling two filters before the sample input.

The type of filters depends on the quality of the water: the first

filter should have 50-100 µm pore size, whereas in any case

the second filter, the one closer to the analyzer, has to be

0.5 µm.

For correct installing procedure and maintenance, see the

instructions of filters.

INSTALLING THE PUMP TUBES

Locate the analyzer reagent tubes in the accessory kit. Each

tube is composed of three sections. The sections are joined

together by plastic connectors with plastic collars at the ends

of the center section.

Locate the peristaltic pump.

Feed one tube from the shorter end section behind the pump

rollers from the right side of the pump. Seat the plastic collar

at the right end of the center sec-

tion of tubing into the lower right

indentation hole of the pump face.

Grasp the other plastic collar and pull, stretching the center

section, and place the grommet in the lower left indentation

hole.

Repeat this process with the second pump tube, placing it in

the upper indentation holes.

Separate reagent caps are provided in the accessory kit. Put

the supplied caps onto each reagent bottle prior to installing

them. Place the indicator bottle (HI 70450 for PCA 300

and HI 70460 for PCA 301) on the right and the buffer

bottle (HI 70451 for PCA 300 and HI 70461 for PCA

301) on the left.

Note Add the content of 5 HI 70452 sachets, DPD Compound,

to the Indicator Solution prior to installing it.

Connect the longer tube

ends on the left side of

the pump to the reagent

bottle cap insert fitting.

Connect the short ends

on the right side of the

pump to the measuring

cell reagent input port

through the "Y" connec-

tor.

ELECTRICAL CONNECTIONS

A power cable (3 mt.) is provided with your analyzer. How-

ever, if access to the terminal block is required, see below.

Warning Electrical connections should be installed only by qualified

personnel to assure conformity to applicable electrical codes.

Unplug the meter before any electrical connection.

Power

Power connections are made at a terminal block located in

the center of the electrical compartment to the right of the

fuses.

Hard wiring with 13 mm (½") conduit is recommended and

usually required by most municipal electrical codes.

Warning Before connecting the instrument to the line:

1) Check the sticker near the fuses for proper voltage.

2) Be sure the power cord is not connected to the line.

3) Open front panel.

4) Remove the cover screws (Allen head).

5) Do not remove peristaltic pump or motor.

6) Unplug all alarms and recorder jacks.

Feed the power cord through the watertight grommet and

tighten the grommet nut. See the picture below for proper

wire connections.

Recorder Output and Relay Access

Hard wiring for alarms and relays can be accomplished

through four watertight connectors on the left of the enclo-

sure, by passing wires through the rubber grommet and

tightening the nut as described earlier.

Refer to the drawing on the right for proper wire connections.

Alarm System

A system alarm feature provides relay acti-

vation to signal need for operator

intervention through an external device, such

as a buzzer, a light or any other electrical

equipment.

Refer to the drawing on the right for proper

wire connections.

The SYS.ERROR LED goes on when a sys-

tem error has occurred. If the situation persists

for more than a few samples, the operator

should notify maintenance personnel for in-

vestigation of the problem. When the meter

is in system error mode, the user can di-

rectly access the diagnostic code that

indicates the source of error (see Error Codes

section at page 49). The analyzer continues

to perform the sampling operations during

an alarm condition.

Recorder Output

Recorder output connections are made as indicated on the

picture aside. The control panel must be opened.

A wiring access hole is located on the left side of the instru-

ment case. Use two wire shielded cable with the shield

connected at the analyzer end only. This wire access hole

should be used only for recorder or serial I/O cables (low

voltage).

The recommended recorder hookup uses a

shielded, twisted-pair cable. The shield

should be connected to Earth terminal at

the instrument end and left open at the re-

corder end. Refer to the drawing here for

proper wire connections.

To operate with this hookup, the following conditions are re-

quired at the recorder end:

• The input to the recorder must be isolated from the chassis

ground (earth) of the recorder;

• If the recorder has more than one input, they must be dif-

ferential inputs.

A choice of outputs, 0-10mV, 0-100mV, 0-1V or 4-20 mA

may be made by selecting the appropriate DIP switch con-

figuration. The DIP switch is located in the upper right corner

of the main board on the back of the control panel.

Earth

Ground

Out

Recorder

Output

Set the individual micro-switch

for the desired output in the ON

position (e.g. 0-1V).

See table below.

Switch Function

6 Not used

5 Calibrate Current

4 4 - 20 mA

30 -1 V

2 0 -100 mV

1 0 -10 mV

Dosing Pump

Proportional dosing can be performed

connecting an external pump to the

DOSING RELAY block terminal.

For the correct connection, see the drawing

aside.

START-UP

INSTRUMENT POWER ON

When the POWER switch is turned on or RESET is pressed,

the moving words “Hanna PCA300” will appear. This dis-

play will continue for 20 seconds.

Then the concentration is set to

0.00 mg/L.

An indication appropriate to

the key pressed or, after 5

minutes, the first mg/L read-

ing will appear on the display.

Note The SYS.ERROR LED and relay will not activate before the

first reading.

Be sure the sample stream is open and flowing through the

system. Wait long enough for the tubing and colorimeter to

be flushed and filled completely and for the reading on the

digital display to become stable.

If no priming action is taken, one or two hours may be re-

quired to initialize the instrument. Faster stabilization can be

obtained by priming the reagent pump and tubing using the

provided operational code.

DISPLAY BRIGHTNESS

The display brightness is set at the highest level. The analyzer

offers the option to change it at two lower levels.

• Press DIAG. The display will show the last diagnostic mode

and the right-most numerical digit will blink.

Note If the analyzer has been reset or turned on, “d000” will ap-

pear when pressing DIAG.

RESET

DIAG

• Enter code 700 using the  and  keys.

• Press DIAG and “brt” will be displayed. Then the bright-

ness of the display will begin to change through the three

levels.

• Press DIAG at one of the 3 brightness level

and the analyzer will store that brightness

level. If DIAG is not pressed, the brightness

will remain at the present level.

MINIMUM AND MAXIMUM CONCENTRATION

In any moment it is possible to recall the current minimum

and maximum chlorine values taken since the last reset.

Simply press MAX/MIN and the display will show alternately

the two levels.

After a few seconds the display will revert to the last reading.

To clear the current minimum and maximum concentrations,

press DIAG. The display will show the last diagnostic mode

and the right-most numerical digit will blink.

Enter Priming code 503 using the  and  keys.

DIAG

MAX

MIN

DIAG

Press DIAG. “0.00” will appear on the display and the two

levels will be set to the current value.

SAMPLING RATE

The sampling rate is user-selectable from a minimum of a

measurement every 5 minutes to a maximum of one every 90

minutes.

It is possible to recall and change the interval between two

different measurements at any given moment.

Simply press SET TIME.

Select the desired interval between 5 and 90 using the  and

 keys. The unit will not allow the user to enter a value less

than 5 or greater than 90.

Press SET TIME twice to store the new sampling

interval setting and revert normal operational

mode.

SET

TIME

DIAG

SET

TIME

PRIMING THE REAGENT SYSTEM

A special diagnostic function included in the software pro-

vides a convenient way to prime the peristaltic pump and

reagent tubing during initial start-up. This decreases the time

needed for instrument stabilization to about three minutes or

until DIAG is pressed again.

1. Press DIAG. The display will show the last diagnostic mode

and the right-most numerical digit will blink.

2. Enter priming code 502 using the  and  keys.

3. Press DIAG to execute priming sequence. The display will

show “CLn”.

4. Repeat the procedure if necessary, until the reagents lines

are completely primed from the bottles to the colorimetric

sample cell.

DIAG

ANALYZER PROGRAMMING

When power is first applied to the analyzer, programmable

parameters of the analyzer are set to default values estab-

lished at the factory. These values or any new values entered

by the operator are stored in nonvolatile EEPROM which

will retain the programmed values in the event of power

failure. All programmable parameters are viewed or ad-

justed via dedicated push buttons.

To check the setting of any programmable parameters, sim-

ply press the dedicated key and the setting will be shown

on the display.

To change the setting, enter the

new setting into the display using

the  and  keys and then quickly

press the dedicated key twice .

The display will show the entries for approximately 2 sec-

onds after the last key stroke and after altering programmable

parameters. The display will

then revert automatically to a

Chlorine concentration display.

PROPORTIONAL DOSING

Proportional dosing establishes and maintains a controlled

and consistent concentration level.

• Press SETPOINT. The display will show the current dosing

setpoint.

Note If the analyzer has been turned on for the first time, “2.50”

will appear as default setpoint.

• Enter the desired setpoint value, e.g. 3.00, using the 

and  keys.

• Press SETPOINT twice to store the new set-

point.

• To set the range within which the proportional dosing occurs

(delta), press DIAG. The display will show the last diag-

nostic mode and the right-most numerical digit will blink.

• Enter code 400 using the  and  keys.

• Press DIAG and the possible settings, 0.1, 0.2, 0.3, 0.4,

0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.5, 2.0, will scroll.

Note If the analyzer has been reset or turned on, “0.1” is the de-

fault delta.

• Store the desired delta, e.g. 0.5, pressing DIAG when the

desired value appears.

• When dosing is active, the DOSE

LED turns on and the corresponding

relays closes.

Note If the measured concentration is lower than the delta, the

dosing will be continuous until the next measurement is taken.

DIAG

Example With the previously given values, sample rate 5 minutes and

measured value 2.8 mg/L, the proportional dosing will be

active for the initial 2 minutes and will stop for the remaining

3 minutes. In fact:

0.5 mg/L : 5 min = 0.2 mg/L (3-2.8) : X

then X = 2 minutes.

CONCENTRATION SETPOINT ALARM SETTING

PCA 300 and PCA 301 are equipped with a fully program-

mable concentration alarm that will activate an indication

when the chlorine concentration limit is exceeded. The alarm

can be set to actuate at any point from 0.00 to 5.00 mg/L.

• To set the concentration level alarm setpoint, press

SET ALARM and the display will show the previously pro-

grammed setpoint.

Note If the analyzer has been turned on for the first time, “0.00”

will appear as default setpoint.

• Using the  and  keys set the new the mg/L Chlorine

value as desired alarm level (e.g. 2.50 mg/L).

• Press SET ALARM twice to set the alarm level.

• To set the stored value as a minimum or

maximum level, press DIAG. The display will show the last

diagnostic mode and the right-most numerical digit will

blink.

DIAG

• Enter code 710 using the  and  keys.

• Press DIAG and the display will scroll through “AL —”,

maximum desired level, and “AL —”, minimum desired level.

• Press DIAG when the needed condition

appears.

• To see the current alarm logic (high or low alarm), press

DIAG. The display will show the last diagnostic mode and

the right-most numerical digit will blink.

• Enter code 711 using the  and  keys.

• Press DIAG and the display will show if the current alarm is

set as minimum (LOW) or maximum (HIGH) desired level.

LOW

HIGH

DIAG

• When an alarm condition is met, the

ALARM LED turns on and the corre-

sponding relays closes.

RECORDER OUTPUT SPAN SETTING

The selected recorder output voltage range or the 4-20 mA

current output may be associated with any Chlorine concen-

tration in the 0 to 5 mg/L range.

For example, if the 0.0 to 1.0 V recorder output has been

selected, the operator can select 0.0 V to correspond to a

concentration of 3.0 mg/L (Recorder Minimum setting) and

1.0 V to correspond to a concentration of 4.5 mg/L (Re-

corder Maximum setting). The full scale span of the recorder

would then be 1.5 mg/L, yielding a magnified view of the 3.0

to 4.5 mg/L concentration range on the recorder.

To set the lower limit of the recorder output

• Press REC.MIN. Display will show the previously set mini-

mum recorder level (e.g. 1.08 mg/L). The most signifi-

cant digit will be blinking.

• Using the  and  keys set the new minimum recorder

level (e.g. 3.00 mg/L).

• Press REC.MIN a second time. The display will blink the

new setpoint for the low end of the recorder output.

REC.

MIN

REC.

MIN

• If you want to store the new setpoint promptly press REC.MIN

again. Display will show “Stor” for a short time indicating

that the new setpoint is stored and will return to the Chlo-

rine concentration display.

• If you do not want to change

the setpoint, do not press

REC.MIN a second time. The

display will return to the Chlo-

rine concentration display and

the setpoint will not be changed.

To set the higher limit of the recorder output

• Press REC.MAX. The display will show the previously set

maximum recorder level (e.g. 3.66 mg/L). The most sig-

nificant digit will be blinking.

• Using the  and  keys set the new maximum recorder

level (e.g. 4.50 mg/L).

• Press REC.MAX a second time. The display will blink the

new setpoint for the high end of the recorder output.

REC.

MAX

REC.

MAX

REC.

MIN

• If you want to store the new setpoint, promptly press

REC.MAX again. Display will show “Stor” for a short time

indicating that new setpoint is stored and will return to the

Chlorine concentration display.

• If you do not want to change

the setpoint, do not press

REC.MAX a second time.

The display will return to the

Chlorine concentration dis-

play and the setpoint will not

be changed.

RECORDER OUTPUT CALIBRATION

The PCA 300 and PCA 301 series of Analyzers are capable

of self-calibrating the voltage or current limits to ensure a 0-

1V output is truly 0-1V or 4-20 mA output is exactly 4-20

mA. This programmed capability eliminates the need for a

voltmeter or milliammeter for output calibration. Calibrating

the recorder output involves a two part procedure. First, a

coarse adjustment to set the voltage (follow step 1 below) or

current limit (follow step 2 below) is completed. Secondly a

fine tuning (step 3 below).

Step 1

If a voltage output has been selected as:

1 V (load > 50 kΩ)

100 mV (load > 5 kΩ)

10 mV (load > 500 Ω)

REC.

MAX

voltage limits can be calibrated automatically as follows:

1.A To automatically calibrate "ZERO" scale

1.A.1 Press DIAG. The display will show the last diagnostic

mode and the right-most numerical digit will blink.

Note If the analyzer has been reset or turned on, “d000” will ap-

pear when pressing DIAG.

1.A.2 Enter code 104 using the  and  keys.

1.A.3 Press DIAG; “rc 0” will be displayed and the analyzer

will execute this mode.

1.B To automatically calibrate "FULL" scale

1.B.1 Press DIAG. The display will show the last diagnostic

mode and the right-most numerical digit will blink.

1.B.2 Enter code 105 using the  and  keys.

DIAG

1.B.3 Press DIAG; “rc 1” will be displayed and the analyzer

will execute this mode calibrating the span value e.g.

1V, 10mV or 100mV.

Microprocessor programming routines will measure and cali-

brate the output limits. This procedure will set the output to

approximately 1% accuracy. Fine tune the recorder output by

following the procedure in step 3.

Step 2

If the 4-20 mA output is used (4 Ω < load < 500 Ω), it is

self-calibrated by selecting the 4-20 mA CAL output with the

recorder output selector DIP switch.

2.A To automatically calibrate "4 mA"

2.A.1 Set the 4-20 mA CAL switch to

ON. Because only one switch

should be on at any one time,

all other switches should be off

while the 4-20 mA CAL switch

is selected.

2.A.2 Press DIAG. The display will show the last diagnostic

mode and the right-most numerical digit will blink.

2.A.3 Enter code 106 using the  and  keys.

DIAG

2.A.4 Press DIAG; “rc 4” will be displayed and the analyzer

will execute this mode calibrating the output to 4 mA.

2.B To automatically calibrate "20 mA"

2.B.1 Press DIAG. The display will show the last diagnostic

mode and the right-most numerical digit will blink.

2.B.2 Enter code 107 using the  and  keys.

2.B.3 Press DIAG; “rc20” will be displayed and the analyzer

will execute this mode calibrating the output to 20 mA.

2.B.4 Using the recorder output selector switches, turn the

Calibrate Current switch off (#5) and then turn the 4-

20mA on (#4).

DIAG

Earth

Ground

Out

Recorder

Output

This procedure will set the output to 1%. Fine tune the re-

corder output by following the procedure in step 3.

Step 3

If the recorder output needs fine tuning, use

the diagnostic routines described below.

• Set the DIP switch to the desired option:

0-10mV/100mV/1V or 4-20 mA.

• Connect a voltmeter, milliammeter or mul-

timeter to the recorder output terminals in

the following sequence:

If output is VOLTAGE

– GROUND output terminal to GROUND input of

multimeter;

– OUT output terminal to VOLTS input of multimeter.

After connections, switch the multimeter to DC VOLTS mode.

If output is CURRENT

– GROUND output terminal to GROUND input of

multimeter;

– OUT output terminal to AMPS input of multimeter.

After connections, switch the multimeter to DC AMPS mode.

3.A If the recorder zero reads too low

3.A.1 Press DIAG. The display will show the last diagnostic

mode and the right-most numerical digit will blink.

3.A.2 Enter code 100 using the  key.

3.A.3 Press DIAG; “r up” will be displayed and the analyzer

will execute this mode fine tuning the low value.

DIAG

3.A.4 The reading on multimeter will slowly in-

crease. When the desired value is

reached, press DIAG again to store it

and quit the mode.

3.B If the recorder zero reads too high

3.B.1 Press DIAG. The display will show the last diagnostic

mode and the right-most numerical digit will blink.

3.B.2 Enter code 101 using the  and  keys. After code is

selected display will show “d101”.

3.B.3 Press DIAG; “r dn” will be displayed and the analyzer

will execute this mode fine tuning the low value.

3.B.4 The reading on multimeter will slowly de-

crease. When the desired value is

reached, press DIAG again to store it

and quit the mode.

DIAG

3.C If the recorder full scale (upper limit) reads too

low

3.C.1 Press DIAG. The display will show the last diagnostic

mode and the right-most numerical digit will blink.

3.C.2 Enter code 102 using the  and  keys.

3.C.3 Press DIAG; “r up” will be displayed and the analyzer

will execute this mode fine tuning upper value.

3.C.4 The reading on multimeter will slowly

increase. When the desired value is

reached, press DIAG again to store it

and quit the mode.

3.D If the recorder full scale (upper limit) reads too

high

3.D.1 Press DIAG. The display will show the last diagnostic

mode and the right-most numerical digit will blink.

DIAG

3.D.2 Enter code 103 using the  and  keys.

3.D.3 Press DIAG; “r dn” will be displayed and the analyzer

will execute this mode fine tuning upper value.

3.D.4 The reading on multimeter will slowly

decrease. When the desired value is

reached, press DIAG again to store it

and quit the mode.

DIAG

Earth

Ground

Out

Recorder

Output

RECORDER OUTPUT LIMITS CHECK

At any time, it is possible to see on a multimeter the present

settings of the recorder output, e.g. 0-1mV, 4-20 mA etc.

This feature is particularly useful to check

the settings and to ensure the outputs are

functioning.

• Set the DIP switch to the desired option:

0-10mV/100mV/1V or 4-20 mA.

• Connect a voltmeter, milliammeter or mul-

timeter to the recorder output terminals

with the following sequence:

If output is VOLTAGE

– GROUND output to GROUND input of

multimeter;

– OUT output to VOLTS input of multimeter.

After connections, switch the multimeter to DC VOLTS mode.

If output is CURRENT

– GROUND output to GROUND input of

multimeter;

– OUT output to AMPS input of multimeter.

After connections, switch the multimeter to DC AMPS mode.

To see the current minimum recorder output limit

1.A Press DIAG. The display will show the last diagnostic

mode and the right-most numerical digit will blink.

1.B Enter code 110 using the  and  keys.

1.C Press DIAG; “— —” will be displayed and the analyzer

DIAG

and the multimeter will display the current minimum

recorder output limit.

1.D Press DIAG again to quit the mode.

To see the current maximum recorder output limit

2.A Press DIAG. The display will show the

last diagnostic mode and the right-most numerical digit

will blink.

2.B Enter code 111 using the  and  keys.

2.C Press DIAG; “— —” will be displayed and the analyzer

and the multimeter will display the current maximum

recorder output limit.

2.D Press DIAG again to quit the mode.

To see the current mid-range recorder output

3.A Press DIAG. The display will show the last diagnostic

mode and the right-most numerical digit will blink.

DIAG

3.B Enter code 112 using the  and  keys.

3.C Press DIAG; “– –” will be displayed and the analyzer

and the multimeter will display the current mid-range

recorder output limit.

3.D Press DIAG again to quit the mode.

ADJUSTING THE LIGHT SOURCE

If the sample blank is highly colored or turbid, the light level

may be inadequate for a proper operation. This situation is

indicated by the activation of the ana-

lyzer system alarm relay and the

appearance of “E09” on the display.

Note This condition can also be caused by failure of the LED light

source.

It may be possible to compensate for inadequate light level

by adjusting the light source intensity, through the small ac-

cess holes provided. It is not necessary to disassemble the

plastic enclosure to access this trimmer.

DIAG

To adjust the light level of the blank sample:

1. Press DIAG. The display will show the last diagnostic mode

and the right-most numerical digit will blink.

2. Enter code 999 using the  and  keys. After the code is

selected display will show “d999”.

3. Press DIAG to execute the light level set mode. All the

display digits will blink.

4. The display will show direct reading of the photodetector

cell.

5. Make sure the photometric chamber is well flushed. Stop

the external sample stream from flowing into the system.

The photometric cell is now filled with blank sample solu-

tion.

6. Adjust the trimmer on the power supply board to obtain

a reading between 7300 and 7700.

7. Press any key to leave this mode.

MAINTENANCE

CALIBRATION REQUIREMENT

Calibration of the PCA 300 and PCA 301 series of Chlo-

rine Analyzers is not normally required. The DPD technique

for measuring Chlorine concentration is well established and

consistent. Also, by measuring the sample blank absorbancy

to establish the zero reference with each measurement, the

accuracy of the analyzer is assured.

If, for any reason, the Chlorine measurements are inaccurate

proceed with the calibration procedure (see page 48).

HYDRAULIC SYSTEM

A visual check of the hydraulic compartment can detect leaks,

pump tubing fatigue or breakage.

These periodic checks help ensure reliable analyzer perfor-

mance.

If a pump tube is interrupted and the

reagents are not added to the sample,

the system error LED and relay will be

activated to notify the user.

REAGENTS SUPPLY

PCA 300 and PCA 301 warn the user

when the reagents level reaches ap-

proximately 20%.

The green LED (mg/L) will start blink-

ing and, working at maximum capacity

(5 minutes sampling rate), the analyz-

ers can operate for 4 more days.

The alarm system is based on an in-

ternal counter that has to be reset every

time the reagents are replaced.

The counter keeps track of the number

of measurements taken and informs the user when it reaches

the 8640th sample.

To see the current value, press DIAG. The display will show

the last diagnostic mode and the right-most numerical digit

will blink.

Enter code 701 using the  and  keys.

Press DIAG and the number of measurements taken will be

displayed in tens (e.g. 8363 will be displayed as 836).

To reset the counter, press DIAG. The display will show the

last diagnostic mode and the right-most numerical digit will

blink.

Enter code 702 using the  and  keys.

Press DIAG; “clr” will be displayed and the analyzer will zero

the counter.

DIAG

Once reagents are completely ex-

hausted, the system error LED will lit

(while the relay remains activated) to

notify the user.

CHANGING PERISTALTIC PUMP TUBING

It is recommended that the peristaltic pump tubes be changed

on a regular basis depending on sampling period and oper-

ating time.

For a 5 minutes sample interval and continuous operation,

changing of the tubes every month is recommended.

For best results however, change the tubings every time the

reagents are replaced.

Important Note Rubber gloves and eye protection must be worn while han-

dling reagent tubing to prevent contact with reagent chemi-

cals. Read MSDS documents before proceeding.

Grasp the plastic collar of one pump tube and pull the fitting

away from the pump toward the front of the case until it clears

the retaining indentation.

Then move the fitting sideways away from the pump until the

tube clears the slot.

Release the tube and fitting.

The fitting on the other end of the pump tube may now be

easily removed from the pump body.

Remove the reagent tubing from one end of the pump tube

fitting and pull the pump tube from behind the pump rollers.

Replace the pump tube with a new one and reassemble in

reverse order. Repeat for the other pump tube.

TUBING REPLACEMENT

The remaining tubing in the analyzers should be replaced

every two months.

When installing new tubing it is helpful to dip them in hot

water before making the connections.

It is also recommended that one tube at a time is removed

and replaced.

Note DPD reagent tubing may darken before the scheduled

replacement time, but this will not affect the instrument’s

performance.

CLEANING MEASUREMENT CELL

In order to maintain the maximum reliability of measurements,

it is recommended to periodically clean the measurement cell.

In fact, the measurement cell could collect sediment or de-

velop a film growth on the inside walls.

Thorough cleaning with a dilute acid solution and a cotton

swab is recommended monthly. Depending on sample con-

ditions at individual locations and absence of input filters,

it may be necessary to clean the cell on a weekly basis.

This can be determined by observing the cell condition

when reagents are changed.

It is also highly recommended to clean the cell every time

you turn the meter off. In such a way, scaling and molds

growth are prevented. Otherwise, subsequent cleaning

might become more difficult.

For cleaning procedure, remove the plastic cap placed on

the top of the measuring cell.

Add a few drops of 19.2N Sulfuric Acid solution or alcohol

to the cell.

Allow sulfuric acid to stand in the measuring cell for 15

minutes to dissolve any foreign materials adhering to the

cell walls. Wipe the cell interior with a cotton-tipped swab.

After wiping, open the drain port to empty the measuring cell

from the cleaning solution.

DIAG

RELAY TEST

In the relay test mode all three alarm relays close for about

one second.

1. Press DIAG . The display will show the last diagnostic

mode and the right-most numerical digit will blink.

2. Enter code 501 using the  and  keys. After the code is

selected display will show “d501”.

3. Press DIAG. The display will blink “ON” and “OFF”, then

the display will automatically return to the last concentra-

tion reading.

CALIBRATION PROCEDURE

1. Withdraw a sample of the measured liquid direct from the

drain port of the measuring cell (#11) by opening its valve

(#12).

Note: withdraw the sample just before the electrovalve

stops the liquid flow to the measuring cell.

2. With a calibrated meter take a measure of

the sample. This is the calibration value.

3. Wait for the PCA to display the reading.

4. Press DIAG. The display will show the last diagnostic mode

and the right-most numerical digit will blink.

5. Enter code 900 using the  and  keys and press DIAG.

6. Enter the calibration value using the  and  keys.

7. Press DIAG to confirm the value. The dis-

play will show “Stor” for a short time indi-

cating that the new calibration value is stored.

The unit will return to normal operation dis-

playing the calibrated value. Value displayed

can differ on the right most numerical digit.

Note: it is not recommended to calibrate the meter at values below

2 mg/L in order to maintain enough accuracy in the whole

range. Calibration below 2 mg/L does not guarantee de-

clared accuracy outside an interval of ±50% from the cali-

bration value.

DIAG

ERROR CODES

ERROR 0 - NO ERROR

ERROR 1- INVALID LOW-SCALE ADJUSTMENT OF RECORDER OUTPUT

1. The manual (fine) low-scale adjustment of the recorder

output in the DOWN direction (DIAG 101) could not be

performed.

2. The automatic low-scale adjustment of the recorder out-

put in the DOWN direction (DIAG 104 or 106) could

not be performed.

Check the dip switches for proper configuration.

Also, when in DIAG 101, “E01” can occur if the user does

not press DIAG again before the displayed DVM reading

goes below:

a. 100 mV, with 0-1 V dip switch setting

b. 10 mV, with 0-100 mV dip switch setting

c. 1 mV, with 0-10 mV dip switch setting.

Another possibility is hardware failure.

ERROR 2 - INVALID FULL-SCALE ADJUSTMENT OF RECORDER OUTPUT

1. The manual (fine) full-scale adjustment of the recorder

output in the UP direction (DIAG 102) could not be per-

formed.

2. The automatic full-scale adjustment of the recorder out-

put in the DOWN direction (DIAG 105 or 107) could

not be performed.

Check the dip switches for proper configuration.

Also, when in DIAG 102, “E02” can occur if the user does

not press DIAG again before the displayed DVM reading

goes above:

a. 1.1 V, with 0-1 V dip switch setting

b. 110 mV, with 0-100 mV dip switch setting

c. 11 mV, with 0-10 mV dip switch setting.

Another possibility is hardware failure.

ERROR 3 - INVALID LOW-SCALE ADJUSTMENT OF RECORDER OUTPUT

The manual (fine) low-scale adjustment of the recorder

output in the UP direction (DIAG 100) could not be per-

formed.

Check the dip switches for proper configuration.

Also, when in DIAG 100, “E03” can occur if the user does

not press DIAG again before the displayed DVM reading

goes above:

a. 100 mV, with 0-1 V dip switch setting

b. 10 mV, with 0-100 mV dip switch setting

c. 1 mV, with 0-10 mV dip switch setting.

Another possibility is hardware failure.

ERROR 4 - INVALID FULL-SCALE ADJUSTMENT OF RECORDER OUTPUT

The manual (fine) full-scale adjustment of the recorder out-

put in the DOWN direction (DIAG 103) could not be

performed.

Check the dip switches for proper configuration.

Also, when in DIAG 103, “E04” can occur if the user does

not press DIAG again before the displayed DVM reading

goes below:

a. 0.9 V, with 0-1 V dip switch setting

b. 90 mV, with 0-100 mV dip switch setting

c. 9 mV, with 0-10 mV dip switch setting.

Another possibility is hardware failure.

ERROR 5 - INVALID VALUE

The user attempted to set a sampling rate out of range (5

to 90 minutes).

ERROR 6 - INVALID VALUE

The user attempted to set one of the following above

5.00 mg/L:

1. recorder min/max;

2. alarm setpoint;

3. proportional dosing setpoint.

ERROR 7 - INVALID VALUE

The user attempted to set REC.MIN at a higher value than

REC.MAX.

ERROR 8 - LOW ABSORPTION

The measured absorption is too low. Possible reasons in-

clude:

1. empty reagent bottles;

2. clogged, pinched or broken tubes;

3. interrupted sample flow.

ERROR 9 - LOW BLANK READING

If the sample blank is highly colored or turbid, the light

level may be inadequate for a proper operation. This situ-

ation is indicated by the activation of the analyzer system

alarm relay and the appearance of “E09” on the display.

This condition can also be caused by failure of the LED

light source.

ERROR 10 - HIGH BLANK READING

Possible reason is optical LED brightness (DIAG 999) too

high.

Note Error codes E01 to E07 are displayed on the analyzer but

do not cause a system error condition.

Error codes E08 to E10 are not displayed

but cause the SYS.ERROR LED to turn on

and the corresponding relay to close.

To view these error codes, enter code

800.

OPERATIONAL & DIAGNOSTIC CODES

Code Function

100 Increase recorder output lower limit in manual

low-scale adjustment

101 Decrease recorder output lower limit in

manual low-scale adjustment

102 Increase recorder output upper limit in

manual full-scale adjustment

103 Decrease recorder output upper limit in

manual full-scale adjustment

104 Set recorder 0 V automatically with dip

switch setting at 0-1 V, 0-100 mV or

0-10 mV

105 Set recorder full-scale automatically with

dip switch setting at 0-1 V, 0-100 mV or

0-10 mV

106 Set recorder 4 mA automatically with dip

switch setting at calibrate current

107 Set recorder 20 mA automatically with dip

switch setting at calibrate current

110 Show recorder output low-scale setting on

DVM or ammeter

111 Show recorder output full-scale setting on

DVM or ammeter

112 Show recorder output mid-range value on

DVM or ammeter

400 Set delta of proportional dosing

401 Show current delta of proportional dosing

500 LED’s test; momentarily turn on all display

LED segments, mg/L LED, dosing LED,

alarm LED and system error LED

501 Alarm relay test; momentarily energize dos-

ing relay, alarm relay and system error

relay

502 Prime peristaltic pump for 3 minutes or

until user presses the DIAG key

503 Clear previous minimum/maximum concen-

tration values

700 Set the display brightness level

701 Show the current reagent counter value (in

tens)

702 Reset the reagent counter

710 Set the alarm logic (low or high)

711 Show the current alarm logic

800 Show the last system error message (E08

to E10)

900*Show the current value and allow calibra-

tion to a new value

901*Show the calibration factor (0.00 to 1.00)

902*Reset the calibration factor to 1.00

999 Adjust optical LED light intensity

*Diagnostic codes reserved to technical personnel only.

INTERFACE WITH PC (PCA 300 and PCA 301 only)

A serial interface permits the PCA 300 and PCA 301 to

have direct connection with a computer. Connection with

a computer allows collecting, storing or printing of the

sample concentration data.

Data transmission from the instruments to the

PC is possible with the HI92000 Windows®

compatible application software offered by

Hanna Instruments.

Refer to the drawing for proper wire connec-

tions.

Serial port set up is: 1200 baud, no parity, 8 bits per byte,

one stop bit (can not be changed by the operator).

A simple example written in Microsoft QBASIC shows how

to read/print concentration data from the analyzer:

OPEN “COM1: 1200,N,8,1,CD0,CS0,DS0,OP0,RS,

TB2048,RB2048” FOR RANDOM AS #1

CLS

PRINT #1, “1” ‘INITIALIZE PORT 1

COM(1) ON ‘ENABLE EVENT TRAPPING

‘ON PORT 1

ON COM(1) GOSUB ComHandler

‘PROVIDE INTERRUPT NAME

DO: LOOP WHILE INKEY$ <> “ “

‘LOOP UNTIL ANY KEY IS

‘PUSHED, THEN EXIT

COM(1) OFF

END

ComHandler:

‘INTERRUPT SUBROUTINE TO

‘PRINT THE VALUE

INPUT #1, value$

PRINT “Chlorine concentration is :”, value$

RETURN

Note In PCA300A, PCA300AC, PCA301A and PCA301AC models

the RS232 terminal is not used / not connected.

ACCESSORIES

ChecktempC Termometer (-50.0 to 150.0 ºC)

HI 70473 Complete kit of tubes from pressure regulator to drain

HI 70474 Peristaltic pump tube (6 pcs)

HI 70475 Peristaltic pump tube (2 pcs)

HI 70476 Reagent bottle inside tube (6 pcs)

HI 70477 Y strainer and line tube from Y strainer to cell (6 pcs)

HI 70478 Tube from bottle to pump (6 pcs)

HI 70479 Tube from pump to Y strainer (6 pcs)

HI 70480 Free Cl2 Reagent Pack (HI 70450, HI 70451 and HI 70452)

HI 70481 Total Cl2 Reagent Pack (HI 70460, HI 70461 and HI 70452)

HI 70482 0.5/50 micron filter system

HI 70483 Complete kit of reagent tubing spare kit (2 pcs)

HI 70484 Complete kit of reagent tubing spare kit (6 pcs)

HI 70485 Cuvet stirrer motor

HI 70486 Stirring bar (5 pcs)

HI 70487 Colorimetric cell

HI 70488 Electrovalve (24 VAC/60 Hz)

HI 70489 Electrovalve (24 VAC/50 Hz)

HI 92000 Windows Compatible Application Software

WARRANTY

All Hanna Instruments meters are guaranteed for two

years against defects in workmanship and materials when

used for their intended purpose and maintained accord-

ing to instructions.

This warranty is limited to repair or replacement free of

charge.

Damage due to accident, misuse, tampering or lack of

prescribed maintenance are not covered.

If service is required, contact the dealer from whom you

purchased the instrument. If under warranty, report the

model number, date of purchase, serial number and the

nature of the failure. If the repair is not covered by the

warranty, you will be notified of the charges incurred. If the

instrument is to be returned to Hanna Instruments, first ob-

tain a Returned Goods Authorization number from the

Customer Service department and then send it with ship-

ping costs prepaid. When shipping any instrument, make

sure it is properly packaged for complete protection.

All rights are reserved. Reproduction in whole or in part

is prohibited without the written consent of the copy-

right owner.

Hanna Instruments reserves the right to modify the design,

construction and appearance of its products without advance

notice.

OTHER PRODUCTS FROM HANNA

• CALIBRATION AND MAINTENANCE SOLUTIONS

• CHEMICAL TEST KITS

• CHLORINE METERS

• CONDUCTIVITY/TDS METERS

• DISSOLVED OXYGEN METERS

• HYGROMETERS

• ION SPECIFIC METERS (Colorimeters)

• MAGNETIC STIRRERS

• Na/NaCl METERS

• pH/ORP/Na ELECTRODES

• pH METERS

• PROBES (DO, µS/cm, RH, T, TDS)

• PUMPS

• REAGENTS

• SOFTWARE

• THERMOMETERS

• TITRATORS

• TRANSMITTERS

• TURBIDITY METERS

• Wide Range of Accessories

Most Hanna meters are available in the following formats:

• BENCH-TOP METERS

• POCKET-SIZED METERS

• PORTABLE METERS

• PRINTING/LOGGING METERS

• PROCESS METERS (Panel and Wall-mounted)

• WATERPROOF METERS

• METERS FOR FOOD INDUSTRY

For additional information, contact your dealer or the near-

est Hanna Customer Service Center.

You can also e-mail us at tech@hannainst.com.

CE DECLARATION OF CONFORMITY

Recommendations for Users

Before using these products, make sure that they are entirely suitable for the environment in which they are

used.

Operation of these instruments in residential areas could cause unacceptable interference to radio and TV

equipment.

Any variation introduced by the user to the supplied equipment may degrade the instruments' EMC

performance.

Unplug the instruments from power supply before opening the front cover.

www.hannainst.com

MANPCA300R1

07/02

PCA300 AND PCA301 COMPLIANCE MARKS

Hanna Instruments Panel Mounted Microprocessor Based Chlorine Analyzer Pca 300 Users Manual Manpca300R1

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