3M WIBGET WB-300 Manuel de l'utilisateur - Page 4
Parcourez en ligne ou téléchargez le pdf Manuel de l'utilisateur pour {nom_de_la_catégorie} 3M WIBGET WB-300. 3M WIBGET WB-300 14 pages. Heat stress monitor
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1 Up and Running
Up and Running
1. Ensure the wet bulb's wick is clean. Then, fill the reservoir with distilled water.
2. Place the WB-300 in the work area in a safe location approximately 3.5 feet off
the ground.
3. Turn the instrument On by pressing I/O Enter key.
4. Using the Arrow keys, select the desired measurement/parameter screen.
5. Allow 10 minutes for the sensors to stabilize to the environment before taking
readings.
Check wick and fill natural wet bulb
The WB-300 uses a cotton wick immersed into a reservoir containing distilled water. Ordinary
tap water should not be used, as the contaminants that are left behind after evaporation will
shorten the life of the wick and cause high readings. If the wick is discolored it should be
replaced. To replace the wick, slide the old wick off the top of the sensor. Place a new wick over
the sensor, making sure that the bottom of the wick is down in the reservoir.
Filling wet bulb reservoir
1. Remove reservoir cover and fill with distilled or de-ionized water.
2. Replace reservoir cover.
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• If the battery voltage displayed during the power-on sequence is less than or equal to
6.4 volts, replace or recharge the batteries.
Figure 1: Wet bulb and maintenance
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