Operation; Power On/Off; Switch Temperature Units; Alarm Setting - Wohler CM 210 Bedienungsanleitung

5

Operation

5.1

Power on/off

5.2 Switch tempera-
ture units
5.3

Alarm setting

5.4

Measurement

5.5

Backlight

Press the power-key to turn on and turn off the
meter. When the meter is powered on, the preset
alarm value and current air temperature will be
blinking on the LCD. The meter is now running a
self-test and will finish in about 15 seconds with a
short beep. It will then enter the measuring mode.
WARNING!
It is recommended to turn on the meter in an area
free of CO since high CO level may cause failure
in passing Self-Test.
Users can select °C or °F as the temperature unit
by pressing the backlight key for more than 1 sec-
ond during the self-test.
The alarm value of the meter is preset at 25 ppm to
give warnings of possible danger. Users can adjust
the value for different needs or standard by turning
off the meter, then press and hold the power-key
until the value options appear in the display. There
are 10, 25, 30, 35, 45, 50, 70 and 100 ppm display-
ing in cycles. Release the button to select the pre-
ferred value. Then the meter will return to Self-Test
mode in some seconds.
The meter measures the CO concentration at the
sensor and displays the reading in ppm. It also
indicates the maximum value (at the lower side of
the display) of all readings since it is powered on.
Users can reset the maximum value by pressing
the backlight-key for two seconds in the measuring
mode.
The meter features backlight function for using in
dark areas. Press the backlight to activate and
switch off the backlight.
Operation
EN
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