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Model 8857
Digital Psychrometer
and IR Thermometer |
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Psychrometers |
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Digital psychrometer and infrared thermometer in
one unit
Features
- Psychrometer calculates wet bulb, dew point and T1-T2.
- Infrared thermometer measures surface temperature from -40°
to 932°F.
- Infrared thermometer features built-in
laser pointer, 8:1 distance to target ratio and adjustable
emissivity.
- Triple display with backlighting.
- RS-232 interface.
- Min/Max Hold functions.
- °C/°F selectable.
- Battery level indicators.
- Retractable humidity sensor for
protection during transport.
- Optional RS-232 cable allows user to
download readings.
- Includes user manual and battery.
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Specifications |
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Measurement |
Range |
Resolution |
Accuracy |
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Relative Humidity |
0% to 100% |
0.1% R.H. |
±3% R.H. |
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Air Temperature |
-20°C to 50°C (-4°F to 122°F) |
0.1°C/°F |
±0.6°C/±1°F |
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Dew Point |
-68°C to 50°C (-98°F to 122°F) |
0.1°C/°F |
±3% |
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Wet Bulb |
-21°C to 50°C (-5°F to 122°F) |
0.1°C/°F |
±3% |
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IR Temperature |
-40°C to 500°C (-40°F to 932°F) |
0.1°C/°F |
±2% or ±2°C/4°F |
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Repeatability |
±1°C |
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Emissivity |
Adjustable, 0.3 to 1.0 |
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Distance to Spot Size |
8:1 |
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General Specifications |
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Power Supply |
4 x Type 'AAA' batteries (installed) |
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Dimensions |
175mm (L) x 70mm (W) x 50mm (D) |
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Weight |
140g including batteries |
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Ordering Information |
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Model 8857 |
Digital Psychrometer/IR Thermometer |
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Model VZRS232BN |
RS-232 Cable and Software |
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