IR250 V2.0 6/09 5
Field of View
As the distance from the object increases, the spot size of the area measured becomes
larger. The meter’s field of view is 6:1; in other words if the meter is 6 inches from the
target (spot), the diameter of the target must be at least 1 inch. Note that measurements
should normally be made as close as possible to the device under test. The meter can
measure from moderate distances but the measurement may be affected by external
sources of light. In addition, the spot size may be so large that it encompasses surface
areas not intended to be measured.
Specifications
Range -4 to 500°F (-20 to 260°C)
Resolution 0.1°
Accuracy -4 to 20°F (-20°C to -7°C): ±7.5°F (4°C)
20 to 500°F (-7°C to 260°C): ±3% of reading or ±5°F/2.5°C
(whichever is greater)
Note: Accuracy is specified for an ambient temperature range
of 64 to 82°F (18 to 28°C)
Emissivity Fixed 0.95
Field of View D/S = Approx. 6:1 ratio (D = distance; S = spot or target)
Laser pointer Class 2(II) laser < 1mW power; Wavelength is 630 to 670nm
IR Spectral response 8 to 14 μm
Display Backlit LCD display with function indicators
Display update rate Less than 1 second
Operating Temperature 32°F to 122°F (0°C to 50°C)
Operating Humidity 80% Relative Humidity max.
Power Supply 9V battery
Automatic Power Off Meter shuts off automatically after 8 seconds
Weight 6.3 oz (180g)
Dimensions 3.2 x 1.6 x 6.3” (82x41x160mm)
6
12
24
2mm
12mm
4mm
24mm
8mm
48mm
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Temperature Measurement
Display
Power
Weight and Dimensions
