TSI Instruments QUESTemp 32 - Measurements; Questemp32; Wet Bulb Globe Temperature

2 Measurements
QUESTemp32
Measurements
QUESTemp32
The QUESTemp32 portable area heat stress monitor computes the Wet Bulb
Globe Temperature (WBGT). The WBGT is an accepted measurement for
determining the heat stress level imposed on an individual in a given environment.
The QUESTemp32 measures three parameters: ambient or dry bulb temperature
(DB), natural wet bulb temperature (WB), and globe temperature (G).
In addition to the WBGT, the QUESTemp32 measures relative humidity (RH) and
computes the Heat Index (HI) or Humidex. The QUESTemp32, using inputs on the
side of the instrument, has the ability to connect to two additional sensor arrays for
monitoring up to three locations simultaneously.
Wet Bulb Globe Temperature
The WBGT is a weighted average of the three temperature sensors using the
following formulas:
WBGT (indoor) = 0.7WB + 0.3G (denoted as “WBGTi” on the display)
WBGT (outdoor) = 0.7WB + 0.2G + 0.1DB (denoted as “WBGTo” on the
display)
 NOTE: The resulting WBGT can be compared to indices of work-rest regimens
(stay times) based upon the work loads. (See Appendix A for published
heat exposure tables.)
Measurements