5
Electrical
Temperature Range
: -30°C to 550°C / -22°F to 1022°F
Display Resolution:
0.5/1°C (Auto), 1°F
Accuracy :
±(2°C/4°F) for -30°C to 100°C, -22°F to 212°F
± (2% reading) for 101°C to 550°C, 213°F to 1022°F
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 (
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")
Diameter of spot (mm)
Distance of object (mm)
Spot size increases with distance from the probe tip as shown
(Spot Diameter measured at 90 % Energy)
25
Ø
50
Ø
100
Ø
250
500
1000
Laser
marker
16
OPERATING INSTRUCTIONS
Trigger:
Pull the trigger on the instrument to measure temperature. Releasing the trigger
will cause the instrument to stop measuring and the display will automatically hold
the measured reading. After 10 seconds the instrument automatically powers
down.
Button function:
1
Set button
SET MODE & Numeric input key
"SET" indicator 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 be stored in the internal memory of the instrument.
Press SET button switches the mode around the cycle
ε
V
ALM Hi
V
ALM Lo
V
MAX
V
MIN
V
HOLD.
HOLD:
Releasing the trigger stops measurement of temperature, the HOLD
indication appears, and the measured temperature is held.
ε
: The thermal emissivity of the object is set using the
and
keys.
6
7
ALM Hi:
The upper limit alarm temperature is set using the
and
keys.
When the measured temperature exceeds the Hi set point, the
beeper emits a pulsed tone and"ALM Hi" is displayed.
ALM Lo:
The lower limit alarm temperature is set using the
and
keys.
When the measured temperature falls below the Lo set point, the
beeper emits a continuous tone and "ALM Lo"is displayed.
MAX:
The maximum temperature obtained during measurement is displayed.
MIN:
The minimum temperature obtained during measurement is displayed.
2 " " button
Press the " " button to activate the laser. " " will be displayed. Press the
trigger to carry out measurements. The laser will be visible and the " " will
blink on the display. Release the trigger to stop measurements. DO NOT AIM
LASER AT EYES.
3
" " button
Use " " button to turn the Back-Light function on and off.
4
°C/°F button
Readings are displayed in either Celsius (°C) or Fahrenheit (°F). To change
between Celsius and Fahrenheit press the °C/°F button .
5 APO
button
After 10 seconds of inactivity, the instrument automatically powers down. Press
" APO " to deactivate the Auto power off function.
8
OPERATION
1
Remove the protective cap and pull the trigger to turn on the meter.
2
Point the lens at the object where temperature is to be measured.
3
Pull the trigger. Measurement is performed as long as the trigger is kept
depressed.
4
Referring to the spot size figure, aim the laser beam at the object where
temperature is to be measured.
5
When the instrument is not in use, be sure to replace the protective cap.
NOTE: Although the field of measurement (or Field of View) and the spot
almost coincide, the actual field of measurement corresponds to the
diameter for 90% optical response. The measured object needs to be larger
than the diameter (size of spot) by an adequate margin at least 1.5 to 2
times bigger.
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 (electromagnetic
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
detecting infrared radiation, accurate measurement is possible, irrespective of the
air temperature or the measurement distance.
3
Construction.
Structure Infrared radiation which has been emitted from the
