INTRODUCTION
This instrument is a portable easy to use 3 digit, compact-
sized digital infrared thermometer with laser sighting de-
signed for simple one hand operation. Meter comes with
Backlit LCD display, Auto-hold function and auto power
down (
15 seconds
approx.) after releasing MEAS button 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 cone. 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:
1 times
per second, nominal.
Operating Environment:
32°F to 122°F (0°C to 50°C)
at < 80% relative humidity
Storage Temperature:
40°F to 140°F (-20°C to 60°C) ,
0 to 80% R.H. with battery removed from meter
Auto power off:
15 seconds
.
Standby consuming current:
<
20
µ
A
Battery:
Standard 9V battery (NEDA 1604, IEC 6F22)
Battery Life:
100
hours (continuity) typical with carbon-
zinc battery (Laser marker and Back-Light not illumi-
nated)
Dimensions:
170mm(H) x 65.5mm(W) x 35mm(D)
Weight:
195g (including probe and batteries)
Laser Specifications:
Laser safety classification of Class 2
Wave Lenght:
Red (630nm~670nm).
Operating Distance:
2 to 50 feet.
Power out:
<1mW , class 2 laser product.
DANGER
Pressing the button 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.
Spot size increases with distance from the probe tip as shown
(Spot Diameter measured at 90 % Energy)
OPERATING INSTRUCTIONS
Auto Power-down function
If unused for about
15 seconds
, the meter will power-
down automatically. Press MEAS button switches to resume
power-on mode.
Turning the Power on
When the power is down, press MEAS
less than 1 sec
button to turn on the meter.
The values and settings on the LCD return to what they
were before the power was last turned off.
When the power is down, press MEAS more than 1 sec,
the last record of MAX/MIN was erased.
Display Back-Light Button
Press " " button to turn on or off the LCD Back-Light
during measurement, or while the display shows HOLD,
MAX or MIN.
Laser Sighting
Press " " button to on the " " annunciator. If " "
annunciator is on, press MEAS button and the laser beam
will turn on and " " annunciator will blink. Releasing
MEAS button turns off the laser beam.
ELECTRICAL
Temperature Range:
-4°F
to 1022°F /
-20°C
to 550°C
Display Resolution:
1°F , 0.5°C/1°C(Auto)
Accuracy:
±2% of reading or ±6°F/3°C, whichever is
greater @ 64.4 to 82.4°F (@ 18 to 28°C) ambient
operating temperature.
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:
1 second
Spectral Response:
6 to 14
µ
m nominal
Emissivity:
0.10 to 1.00 by step of 0.01
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")
OPERATING INSTRUCTIONS
635
INFRARED THERMOMETER
WITH LASER SIGHTING
®
Selecting the Temperature Scale (°C or °F)
Readings are displayed in either degrees Celsius(°C) or
degrees Fahrenheit(°F). When the thermometer is turned
on, it is set to the temperature scale that was in use when the
thermometer was last turned off. To change the temperature
scale, in power down mode hold the " " button (°F) [" "
button (°C)] down, and then press MEAS button until the °F
(°C) annunciator appear.
Continuous Measurement
1. In the power down mode, holding the MODE key down
and then pressing the MEAS key will put the meter into
the continuous measurement mode
, if HOLD was show,
please press MEAS button again to into the continuous
measurement.
2. When the MEAS key is pressed again to stop measuring
temperature and automatically hold the display reading,
the meter power down automatically after
15 seconds.
NOTE:
During the continuous measurement mode, the
HOLD indication does not appear.
NOTE:
During the continuous measurement mode, the laser
sighting is not turned on.
MODE SELECTION AND OPERATION
Press MODE button switches the mode around the cycle
ε
→
ALM Hi
→
ALM Lo
→
MAX
→
MIN
→
HOLD.
HOLD
:Releasing MEAS button stops measuring tem-
perature, the HOLD indication appears, and the
measured temperature is held.
ε
:
The thermal emissivity of the object set using
the
▲
and
▼
keys.
ALM Hi
:
The upper limit alarm temperature is set using
the
▲
and
▼
keys. When the measured tem-
perature 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 tem-
perature is blew the Lo setpoint, the beeper
emits a continuous pulse tone and "ALM Lo" is
displayed.
MAX
:The maximum temperature during measure-
ment is displayed. when measuring and also
pressing the mode key, this will enter MAX/
MIN/Present cycling.
MIN
:The minimum temperature during measure-
ment is displayed. when measuringand also
pressing the mode key, this will enter MAX/
MIN/Present cycling.
