Setup; Placing The Wb-300 On-Site For Monitoring/Testing; Operational Check - 3M WIBGET WB-300 User Manual

Heat stress monitor
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5 Setup

Setup
While powered on, press the setup key to change the temperature units (
language settings (English, Spanish, French, Italian, or German), if desired.

Placing the WB-300 on-site for monitoring/testing

The WB-300 should be placed at a height of 3.5 feet (1.1m) for standing individuals or 2
feet (.6m) for seated individuals. Tripod mounting is recommended to get the unit away
from anything that might block radiant heat or airflow. A 1/4"x20 threaded bushing on the
bottom of the instrument allows mounting to a standard photographic tripod. Do not stand
close to the unit during sampling.
Make sure that the wet bulb reservoir is filled with distilled water and that the cotton wick
is clean and fully wetted. After adding water or placing the unit in a new environment,
allow ten minutes for the globe and wet bulb readings to stabilize.
A series of dashes appear in the display if one of the following occur:
• The temperature is outside of its allowable range
• A temperature sensor has failed

Operational Check

A verification module, 3M ID: 70071581246, may be used to check the operation of the
WB-300. Remove the top sensor bar and plug the verification module into the top of the
unit. With the WB-300 set to read in degrees Celsius, verify that the displayed readings
match those printed on the module within +/-0.5
If the readings are not within the +/-0.5
calibrated.
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Setup
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