Specifications - Extech Instruments HT30 User Manual

Specifications

Wet Bulb Globe Temperature (WBGT)
WBGT Accuracy
TG Black Globe Temperature range
TG Accuracy
TA Air Temperature range
TA Accuracy
Relative Humidity (RH)
RH Accuracy
Resolution
Operating Temperature
Operating Humidity
Power Supply
Battery Life
Dimensions
Weight
Optional Accessories
HT30 WBGT calculations:
WBGT = Wet bulb Globe temperature
WB = Wet bulb temperature (Calculated from temperature and Humidity)
TG = Globe temperature
TA = Air temperature
OUT of the Sun (Indoors)
WBGT = 0.7xWB + 0.3xTG
IN full Sun (Outdoors)
WBGT = 0.7xWB + 0.2xTG + 0.1xTA
Sensor - Wet bulb calculator (sea level pressure)
http://www.rotronic.com/en/humidity_measurement-feuchtemessung-
mesure_de_l_humidite/humidity-calculator-feuchterechner-mr
Indoor
Outdoor
0°C to 50°C (32°F to 122°F)
Calculated from measured parameters
0 to 80°C (32°F to 176°F)
±2°C (4°F)
±3°C (5.5°F)
0°C to 50°C (32°F to 122°F)
±1°C (1.8°F)
0 to 100%RH
±3% (at 25°C, 10 to 95%RH)
0.1°F/°C; 0.1%RH
0°C to 50°C (32°F to 122°F)
Max. 80% RH
Two AAA batteries
Approx 1000 hours
Meter: 254 x 48.7 x 29.4mm (10x1.9x1.1")
Black Ball: 40mm, 35mm (1.57 Dia., 1.37H)
136g (4.8oz)
PC software and cable (407752)
5 HT30-en-GB_V3.6 4/16