Casella CEL Microtherm WBGT heat stress monitor - Manual (Page 8)

Table 1: Permissible Heat Exposure Threshold Limit Values
(values are given in o C WBGT)
Work Regimen Work Load
Light Moderate Heavy
Continuous Work 30.0 27.7 25.0
75% Work 30.6 28.0 25.9
25% Rest, Each Hour
50% Work
31.4 29.4 27.9
50% Rest, Each Hour
25% Work
32.2 31.1 30.0
75% Rest, Each Hour
1.2 Description
The Casella Microtherm Heat Stress Wet Bulb Globe Temperature (WBGT)
monitor is shown in Figure 1.
Knurled
locking ring
Radiation shield
with dry sensor
inside
Globe temperature
sensor
Wet temperature
sensor
Water reservoir
Cotton wick
Sensor array
Control unit
Escape
Navigator keys
Enter
Battery charging
indicator
ON / OFF
00061
MICROTHERM
Heat Stress WBGT Heat Stress WBGT
Figure 1: General layout of the Microtherm Heat Stress WBGT
Page 8 of 44
Description MICROTHERM Heat Stress WBGT &
WinHSM Application Software - User Manual