111 636 Manual

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OPERATING INSTRUCTIONS

636

INFRARED THERMOMETER

WITH LASER SIGHTING

INTRODUCTION

This instrument is a portable easy to use 3½digit,

compact-sized digital infrared thermometer with laser

sighting designed for simple one hand operation. Meter

comes with Backlit LCD display, Auto-Hold function and

auto power down (10 seconds approx.) after releasing

Trigger to extend battery life.

SAFETY INFORMATION

It is recommended that you read the safety and operation

instructions before using the infrared thermometer.

CAUTION

• Do not use the unit near any device which generates

strong electromagnetic radiation or near a static

electrical charge, as these may cause errors.

• Do not use the unit where it may be exposed to

corrosive or explosive gases. The unit may be dam-

aged, or explosion may occur.

• Do not keep or use this unit in an environment where

it will be directly illuminated by sunshine, or where it

will be exposed to high temperatures, high humidity or

condensation. If you do, it may be deformed, its

insulation may be damaged, or it may no longer

function according to specification.

• Do not point the lens at the sun or at any other source

of strong light. If you do, the sensor may be damaged.

• Do not contact the lens against the object whose

temperature is to be measured, or get it dirty, allow it

to be scratched, or allow any foreign material to

adhere to it. Doing so may cause errors.

• Do not touch or hold by the front case. Temperature

reading can be affected by heat from hand.

• Do not place the meter on or around hot objects (70°C/

158°F). It may cause damage to the case.

• If the meter is exposed to significant changes in

ambient temperature (hot to cold or cold to hot). Allow

20 minutes for temperature stabilization, before tak-

ing measurement.

• Condensation may form on the lens when going from

a cold to hot environment-wait 10 minutes for conden

sation to dissipate before taking measurements.

• This unit is not constructed to be water proof or

dustproof, so do not use it in a very dusty environment

or in one where it will get wet.

SPECIFICATIONS

GENERAL

Display:

3½ digit liquid crystal display (LCD) with maximum

reading of 1999

Low battery indication: the " " is displayed when

the battery voltage drops below the operating level

Measurement rate: 0.25 second, nominal.

Operating Environment: 32°F to 122°F (0°C to 50°C)

at < 70% R.H.

Storage Temperature:

-4°F to 140°F (-20°C to 60°C) , 0 to 80% R.H. with

battery removed from meter

Auto power off: 10 seconds.

Standby consuming current: <5µA

Battery: Standard 9V battery (NEDA 1604, IEC 6F22

006P)

Battery Life: 9 hours (continuity) typical

(contain Laser and Backlit)

Dimensions(HxWxD): 5.8x4.1x1.65"(148 x 105 x

42mm).

Weight: approx. 157g (including battery.)

Laser Specifications

Laser safety classification of Class 2

Wave Length: Red (630~670nm).

Power out: <1mW, class 2 laser product.

DANGER

Pressing the Trigger turns the laser beam on and off.

Exercise extreme care and do not allow the laser beam

to enter your eye or those of any other person or animal.

• Do not look directly into the laser light from the optical

system.

• When measuring the temperature of an object which

has a mirror finish, be careful not to allow the laser

light beam to be reflected off the surface into your eyes

or those of another person.

• Do not allow the laser light beam to impinge upon any

gas which can explode.

EMC/RFI

Readings may be affected if the unit is operated within a

radio frequency electromagnetic field strength of approxi-

mately 9 volts per meter, but the performance of the

instrument will not be permanently affected.

®

ELECTRICAL

Temperature Range: -22°F to 1022°F / -30°C to 550°C

Display Resolution: 1°F, 0.5/1°C (Auto)

Accuracy:

±(4°F/2°C) for -22°F to 212°F, -30°C to 100°C

±(2% reading) for 213°F to 1022°F, 101°C to 550°C

Temperature Coefficient: ±0.2% of reading or ±0.36°F/

0.2°C, whichever is greater, change in accuracy per °F/

°C change in ambient operating temperature above 82.4°F/

28°C or below 64.4°F/18°C.

Response Time: 0.25 second

Spectral Response: 6 to 14µm nominal

Adjustable emissivity (εε

εε

ε): 0.1 to 1.0

Detection Element: Thermopile

Optical Lens: Fresnel Lens

Sighting: 1-beam laser marker <1mW (class 2)

Field of View: 100mmØ at 1000mm (3.9"Ø at 39.0")

Spot size increases with distance from the probe tip as shown

(Spot Diameter measured at 90 % Energy)

OPERATING INSTRUCTIONS

Trigger

Pull the trigger to turn on the meter for measuring

temperature. Releasing trigger to stop measuring tem-

perature and automatically hold the display

reading, the meter power down automatically after 10

seconds.

Button function:

1. Set button

SET MODE & Numeric input key

"SET" annunciator appears when a numerical value can be

set ( during setting of ε, ALM Hi and ALM Lo).

key: The numerical value is increased.

key: The numerical value is reduced.

If either of these numerical value keys is held down, the

numerical value changes rapidly in the appropriate

direction.

The data will store in nonvolatile storage region while

after completing settings. In this mode the automatic power

-off feature is disable.

2. " " button

Press " " button to on the " " annunciator. If " "

annunciator is on, press trigger and the laser beam will turn

on and " " annunciator will blink. Releasing trigger to turn

off the laser beam.

3. " " button

Use " " button to select turn on or off the Back-Light

function.

4. °C/°F button

Readings are displayed in either degrees Celsius(°C) or

degrees Fahrenheit(°F). When the thermometer is turned

on. To change the temperature scale by pressing °C/°F

button .

5. APO button

It will auto power off for about 10 seconds.

Press "APO" button to disable . Auto Power-Off function

that HOLD indication disappears and press again to enable

APO function.

Press SET button switches the mode around the cycle ε !

ALM Hi ! ALM Lo ! MAX ! MIN ! HOLD.

HOLD :Releasing the trigger to stop measurement of

temperature, the HOLD indication appears,

and the measured temperature is held.

ε:The thermal emissivity of the object set using

the and keys. (refer to Table 1)

ALM Hi :The upper limit alarm temperature is set using

the and keys. When the measured

temperature is exceeded the Hi setpoint, the

beeper emits a discontinuous pulse tone and

"ALM Hi" is displayed.

ALM Lo :The lower limit alarm temperature is set using

the and keys. When the measured

temperature is below the Lo setpoint, the beeper

emits a continuous pulse tone and "ALM Lo"

is displayed.

MAX :The maximum temperature during measure-

ment is displayed.

MIN :The minimum temperature during measure-

ment is displayed.

MEASUREMENT CONSIDERATIONS

1. Theory of Measurement

Every object emits infrared energy in accordance with its

temperature. By measuring the amount of this radiant

energy, it is possible to determine the temperature of the

emitting object.

2. About Infrared

Infrared radiation is a form of light (electromagnectic

radiation), and has the property that it passes easily

through air while it is easily absorbed by solid matter.

With an emission thermometer which operates by detect-

ing infrared radiation accurate measurement is possible,

irrespective of the air temperature or the measurement

distance.

3. Emission Thermometer Structure

Infrared radiation which has been emitted from the object

is focused upon an infrared radiation sensor, via an optical

system. This includes a lens which is transparent to

infrared radiation. And 5.3µm cut off filter. The output

signal from the infrared radiation sensor is input to an

electronic circuit along with the output signal from a

standard tempeature sensor (Thermopile).

4. Emissivity

All objects emit invisible infrared energy. The amount of

energy emitted is proportional to the object's temperature

and its ability to emit IR energy. This ability, called

emissivity, is based upon the material that the object is

OPERATION

1.Take the protective cap off and then pull the trigger to

turn on the meter.

2.Point the lens at the object whose temperature is to be

measured.

3.Pull the trigger. Measurement is performed as long as

trigger is kept.

4.Referring to the spot size figure ,aim the laser beam at

the object whose temperature is to be measured.

5.Put the cap on to extend life of the sensor and to avoid

danger caused by wrong way to use laser.

NOTE: Although the field of measurement (or Field of View)

and the spot almost coincide, actually the field of

measurement corresponds to the diameter for 90%

optical response. The object whose temperature is

to be measured needs to be larger than the mea-

surement diameter (spot of size) by an adequate

margin at least 1.5 to 2 times larger.

made of and its surface finish. Emissivity values range

from 0.10 for a very reflective object to 1.00 for a black

body. Factory set emissivity value of 0.95, which cover

90% of typical applications.

5. If the surface to the measured is covered by frost or other

material, clean it to expose the surface.

6. If the surface to be measured is highly reflective, apply

masking tape or matt finish black paint to the surface.

7. If the meter seems to be giving incorrect readings check

the front cone. There may be condensation or debris

obstructing the sensor; clean per instructions in the

maintenance section.

Please Attention

"

#

For your convenience, we suggest you contact your BK

PRECISION distributor, who may be authorized to make

repairs or can refer you to the nearest service contractor.

If warranty cannot be obtained locally, please send the unit

to BK PRECISION Service Department, 22820 Savi

Ranch Parkway Yorba Linda, CA 92887, properly pack-

aged to avoid damage in shipment.

BK PRECISION Test Instruments only warrants prod-

ucts sold in the U.S.A. and its overseas territories. In other

countries each distributor warrants the BK PRECISION

products which it sells.

CUSTOMER SUPPORT 1-800-462-9832

Precision offers courteous, professional technical support

before and after the sale of their test instruments. The

following services are typical of those available from our

toll-free telephone number:

• Technical advice on the use of your instrument.

• Technical advice on special applications of your

instrument.

• Technical advice on selecting the best instrument for a

given task.

• Instrument for information on optional accessories for

your instrument.

• Information on instrument repair and recalibration

services.

• Replacement parts ordering.

• Information on other BK PRECISION instruments.

• Requests for a new BK PRECISION catalog.

• The name of your nearest BK PRECISION distributor.

Call toll-free 1-800-462-9832

Monday through Friday, 8:00 A.M. to 5:00 P.M.

Pacific Standard Time

22820 Savi Ranch Parkway Yorba Linda, CA 92887

© 2005 BK PRECISION

481-544-9-001 Printed in Taiwan

®

LIMITED ONE YEAR WARRANTY

BK PRECISION warrants to the original purchaser that

its product, and the component parts thereof, will be free

from defects in workmanship and materials for a period of

one year from the date of purchase.

BK PRECISION will, without charge, repair or replace,

at its option, defective product or component parts upon

delivery to an authorized BK PRECISION service con-

tractor or to the factory service department, accompanied by

proof of the purchase date in the form of a sales receipt.

Exclusions: This warranty does not apply in the event of

misuse or abuse of the product or as a result of unauthorized

alterations or repairs. It is void if the serial number is altered

, defaced or removed.

BK PRECISION shall not be liable for any consequential

damages, including without limitation damages resulting

from loss of use. Some states do not allow limitation of

incidental or consequential damages, so the above limitation

or exclusion may not apply to you.

This warranty gives you specific rights and you may have

other rights which vary from state-to-state.

MAINTENANCE

Battery Replacement

1. Power is supplied by a 9 volt "transistor" battery. (NEDA

1604, IEC 6F22).

2. Pull off battery cover " ".

3. Remove the battery cover by gently sliding it towards the

bottom of the meter.

4. Remove and disconnect the old battery from the meter and

replace with a new unit. Wind the excess lead length and

put the top of battery beneath the battery chamber. Install

the battery and put the battery cover.

Cleaning

Periodically wipe the case with a damp cloth and deter-

gent, do not use abrasives or solvents.

LASER RADIATION - DO NOT STARE INTO BEAM

POWER OUT: < 1mW

WAVE LENGTH: RED (630-670nm)

LASER SAFETY CLASSIFICATION OF CLASS 2

EN 60825-1:1994/A11:1996/A2:2001

AVOID EXPOSURE

Laser radiation is emitted

from the APERTURE

CAUTION

(Table 1)

Asphalt 0.90 to 0.98 Cloth (black) 0.98

Concrete 0.94 Human skin 0.98

Cement 0.96 Lather 0.75 to 0.80

Sand 0.90 Charcoal (powder) 0.96

Earth 0.92 to 0.96 Lacquer 0.80 to 0.95

Water 0.92 to 0.96 Lacquer (matt) 0.97

Ice 0.96 to 0.98 Rubber (black) 0.94

Snow 0.83 Plastic 0.85 to 0.95

Glass 0.90 to 0.95 Timber 0.90

Ceramic 0.90 to 0.94 Paper 0.70 to 0.94

Marble 0.94

chromium oxides

0.81

Plaster 0.80 to 0.90 Copper oxides 0.78

Mortar 0.89 to 0.91 lron oxides 0.78 to 0.82

Brick (red) 0.93 to 0.96 Textiles 0.90

Substance Thermal Substance Thermal

emissivity emissivity