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Appendix A
25
Appendix A: Specifications
Measurements
• Globe temperature, dry bulb temperature, wet bulb temperature, % relative
humidity, WBGTin, WBGTout, WBGT weighted average (if 3 sensor sets), and
Heat Index / Humidex.
• Temperatures given in Celsius or Fahrenheit.
• Index (QTº46 only): ACGIH TLV, U.S. Navy PHEL Charts, Flag Conditions for U.S.
Navy/Marine Corp. Ashore, and EPRI
Data Logging
Records and prints all measurements at user selected interval of 1, 2, 5, 10, 15, 30,
or 60 minutes. 128K bytes of data memory.
Languages
English, French, Spanish, Italian, German
Housing
Designed water resistant to a light rain or mist. If rain is frequent, best practice
would be to remote the sensor bar and keep the instrument sheltered.
Size
Height 9.2in (23.5cm); Width 7.2in (18.3mm); Depth 3.0in (7.5mm)
Dimensions include mounted sensor assembly
Weight
2.6 lbs. (1.2 kg) with mounted sensor assembly
Sensor Types
Temperature: 1000 ohm platinum RTD
Humidity: Integrated circuit with capacitive polymer sensor
Accuracy
• Dry Bulb and Globe Temperature: +/-0.5°C between 0°C and 120°C
• Waterless Wet Bulb Temperature: Expanded measurement uncertainty of 1.1ºC
(k=2) between 0ºC and 80ºC
• Relative humidity: +/- 5% between 20 to 95% (non-condensing)
Operating Temperature Range
Sensor Assembly: -5°C to +100°C
Electronics: -5°C to 60°C
Appendix A