3M QuesTemp 32 Up and Running, Check Wick and Fill Natural Wet Bulb, Filling wet bulb reservoir

1

Up and Running

Up & Running

Up and Running

1.Make sure the wet bulb’s wick is clean. Fill the reservoir with distilled water.

2.Place the QUESTemp in the work area in a safe location approximately 3.5 feet off the ground.

3.Turn the unit ON. If the battery voltage displayed during the power-on sequence is less than or equal to 6.4 volts, replace or recharge the batteries.

4.Use the arrow keys to set the display to the desired items.

5.Allow 10 minutes for the sensors to stabilize to the environment before taking readings.

Check Wick and Fill Natural Wet Bulb

The QUESTemp 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.

Wick

Reservoir cover Reservoir

Filling wet bulb reservoir

1.Remove reservoir cover and fill with distilled or de-ionized water.

2.Replace reservoir cover.

Figure 1-1: Filling wet bulb reservoir