Wöhler CM 220
3. Operating Elements
3.1 Display
Figur e 3.1: Display
1. Primary display: Curr ent CO value
2. Secondary display: Max. CO value
3. Battery indicator: low battery
3.2 Function keys
1.
Turn on and of f the backlight.
Switch temperatur e unit C and F .
Reset the maximum CO value
2.
Turn the meter on and of f. Select the alarm value
1 + 2 : Enter calibration mode
3. Operating elements
Figur e.3.2: Function keys
1
2
25 ppm
Max 34
2
1
3
