User manual

4 WB200-EU-EN V1.4 8/13
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Operation
Getting started
Momentarily, press the Power button to switch the meter ON.
After the 3-second power-up self-test, the meter switches to the normal measurement mode where
the Air Temperature, % Relative Humidity, Wet Bulb Temperature, and Dew point Temperature
readings cycle automatically every two seconds on the LCD (refer to Figure 1 below).
Figure 1 - Four Measurement Modes Display Cycling
Air Temperature RH% Wet Bulb Temperature Dew Point Temperature
The meter runs the fan for 2 minutes upon power-up to generate readings; the meter only updates
readings while the fan is running.
Switching the Fan ON
As mentioned, the meter takes measurements only while the fan is running. When the meter is not
in the “CON” (continuous fan) mode, press the FAN button to start the fan and view current
measurements; the fan will run for 2 minutes with each button press. When the environmental
conditions change, run the fan to quicken the response time and to obtain the latest readings. To
access the CON (continuous) fan feature, refer to the SETUP mode section of this guide.
Maximum (MAX) and Minimum (MIN) Readings
The meter begins storing the maximum and minimum readings for air temperature, % relative
humidity, dew point temperature, and wet bulb temperature when the meter is switched ON. When
the meter is switched OFF, the MAX and MIN readings are cleared.
To view the maximum readings, press the MAX/MIN key once. The meter will now cycle through the
four (4) measurement modes presenting the highest reading encountered since power-up for each.
Note that the Mx icon will be displayed at the bottom of the LCD.
To view the minimum readings, press the MAX/MIN key again (from the MAX mode). The meter will
now cycle through the four (4) measurement modes again, presenting the lowest reading
encountered since power-up for each. Note that the Mn icon will be displayed. To return to the
normal measurement mode, press the MAX/MIN key again. The Mx and Mn icons are switched OFF
in the normal measurement mode. Refer to Figure 2 below.
Figure 2 – Maximum (Mx) and Minimum (Mn) Display Modes
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