Casella CEL Microtherm WBGT heat stress monitor - Manual (Page 15)

The reservoir cap is a tight push fit with an "O" ring seal.
1.
Use only distilled water and fill the reservoir up to the line
engraved inside. Over filling may cause the water to siphon out of
the container.
2. Replace the cap after filling.
3. Change the cotton wick if it becomes discoloured.
Use the supplied screwdriver to tease out the fibres enough to allow
the wick to be pulled down to the first shoulder on the wet bulb.
Also use the screwdriver to ease the wick through the hole in the
reservoir cap. Check that the free end of the wick reaches the
bottom of the water reservoir.
4. Empty the reservoir after use.
2.2 Preliminary Operations
2.2.1 Switching ON and OFF
Warning !
DO NOT use non-rechargeable batteries while the charging
circuit is enabled.
1. Press to switch your Microtherm ON.
Figure 10: The Microtherm standing on a horizontal surface
Foot Permanently
Attached 1/4" Whitworth/
1/4" UNC Tripod Bush 00063
Page 15 of 44
Operation MICROTHERM Heat Stress WBGT &
WinHSM Application Software - User Manual