Digi-Sense 39643-00 Instruction Manual

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The 39643-00 thermometer is a
non-contact infrared
thermometer. Simply aim the
thermometer at the target and
press the ‘Meas. key’ to display
the surface temperature.

Laser Information:

By partially pressing the
‘Meas. key’, the device will
begin to measure the
temperature of the target.
When the ‘Meas. key’ is
completely depressed, the
laser will operate.

CAUTION!

1. WHEN DEVICE IS IN USE, DO NOT LOOK DIRECTLY INTO THE LASER
BEAM–PERMANENT EYE DAMAGE MAY RESULT.

2. USE EXTREME CAUTION WHEN OPERATING THE LASER.

3. NEVER POINT THE DEVICE TOWARDS ANYONE’S EYES.

4. KEEP OUT OF REACH OF ALL CHILDREN.

°F OR °C MODE

To change from ‘°F’ to ‘°C’ or from ‘°C’ to ‘°F’, first turn the instrument on by
pressing the ‘Meas. key’, then press the ‘Mode key’ four times, the ‘°C’ or ‘°F’
symbol will flash, press the ‘Meas. key’ to change to scale.

MINIMUM OR MAXIMUM MODE

To utilize the minimum or maximum mode, first turn the instrument on by
pressing the ‘Meas. key’, then press the ‘Mode key’ once for minimum or twice
for maximum function. The ‘MIN’ or ‘MAX’ icon will flash, then press the ‘Meas.
key’ to confirm the minimum or maximum mode. The meter will display the
minimum or maximum reading only.

LOCK MODE

The lock mode is particularly useful for continuous monitoring of temperatures.

To utilize the LOCK mode, first turn the instrument on by pressing the ‘Meas.
key’, then press the ‘Mode key’ three times for the lock mode function. The
lock icon will flash, then press the ‘Meas. key’ to confirm the lock mode. The
meter will continuously display the temperature for up to 60 minutes or until
the ‘Meas. key’ is pressed again.

EMISSIVITY RANGE

The infrared thermometer is supplied with a default emissivity of 0.95. The
emissivity can be changed from 0.05 (5E) to 1.00 (100E). Changes should
only be carried out by experienced personnel. To change the emissivity, first
turn the instrument on by pressing the ‘Meas. key’, then press the ‘Mode key’
five times for emissivity function. The 95E will flash on the LCD screen, then
press the ‘Meas. key’ to adjust the emissivity value, press the ‘Mode key’
again to exit the set up screen. For information relating to the emissivity of
specific materials, please contact the nearest retailer. Note: non-contact
infrared thermometers are not recommended for use in measuring the
temperature of shiny or polished metals.

LCD ERROR MESSAGES

The 39643-00 incorporates visual diagnostic messages as follows:

「 」

「

「

「 」

「 」

‘Hi’ or ’Lo’ is displayed when the temperature being
measured is outside of the range of the instrument, ‘Hi’
when higher than 482°F (250°C) and ‘Lo’ when lower than

-27°F (-33°C).

」

‘Er2’ is displayed when the meter is exposed to rapid
changes in the ambient temperature. ‘Er3’ is displayed

」

when the ambient temperature of the meter EXCEEDS
32°F (0°C) OR 122°F (+50°C). In both cases you should
allow plenty of time (minimum 30 minutes) for the meter to
stabilize to the working/room temperature.

For all other error messages it is necessary to reset the
meter. To reset the meter, turn the instrument off, remove
the battery and wait for a minimum of one minute, reinsert
the battery and turn on. If the error message remains
please contact the Service Department for further
assistance.

BATTERIES

The 39643-00 has two separate batteries. The battery closer to the side of the
laser beam output is for laser operation only. The other battery is designated
for temperature measurements. The meter can still measure temperature
properly, even without the laser battery.

The meter incorporates visual low battery indication (for the lower battery) as
follows:

‘Battery OK’:

measurements

are possible

‘Battery Low’: battery needs to

be replaced, measurements

are possible

‘Battery Exhausted’:

measurements are

not possible

BATTERY REPLACEMENT

When the ‘Low Battery’ icon indicates the battery is low, the battery should be
replaced immediately with a CR2032 lithium cell. The battery is located under
the twist cover at the rear of the meter. Please note: It is important to turn the
instrument off before replacing the battery otherwise the meter may
malfunction.

Dispose of used battery properly and keep away from children.

STORAGE & CLEANING

The sensor lens is the most delicate part of the meter. The lens should be kept
clean at all times, care should be taken when cleaning the lens using only a
soft cloth or cotton swab with water or medical alcohol, allowing the lens to
fully dry before using the meter, do not submerge any part of the meter. The
meter should be stored at room temperature between -4 to 149°F.

SPECIFICATION

Measurement Range –67 to 482°F (-55 to 250°C)
Operating Range 32 to 122°F (0 to 50°C)
Accuracy,
(Tobj=15-35°C,Tamb=25°C)
Full Range Accuracy +/-2% of reading or +/-3.6° F (2°C) (whichever

Resolution (-9.9~199.9°C) 0.1°F / 0.1°C (switchable)
Response Time (90%) 1 second
Distance:Spot 8:1 optics ratio
Emissivity Range 0.05~1 Step.01
Battery Life Typ. 40hr, min 30hr

Battery CR2032 (for Laser, 2pcs required)
Dimensions .7 x 1.4 x 2.6” (18.0 x 36.6 x 67.8mm)
Weight 63 grams including batteries

+/-1° F (+/-0.6°C)

is greater)

(auto power off after 15 seconds)

EMC/RFI

Readings may be affected if the unit is operated within radio frequency
electromagnetic field strength of approximately 3 volts per meter, but the
performance of the instrument will not be permanently affected.

GUARANTED

The 39643-00 is guaranteed for a period of one year from the date of
purchase against mechanical and electrical manufacturing defects. There are
no user serviceable parts inside the instrument. Any attempted repair by
unauthorized persons voids the warranty.

E-mail: [e-mail]

Imported by Cole Parmer Instrument Company

625 East Bunker Court, Vernon Hills, Illinois 60061-1844, USA

Phone: [phone] Fax: [phone]

Web site:Http://www.coleparmer.com

Toll Free: 800-323-4340