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the “OK” pushbutton to return to the Operating Mode.
To change the setpoint, depress the “CHANGE” pushbutton. One of the
following screens will be displayed:
<gas> ALARM SETPOINT
For Toxic Gases HI ALARM = <_ >ppm
UP DOWN
CHANGE O
2
ALARM
For O
2
HI ALARM = 23.5%
LO ALARM = 19.5%
LO HI
For toxic gases, choose “UP” or “DOWN” to change the corresponding
“ALARM SETPOINT”. For example, choose “UP” and one of the following
screens will appear:
<gas> ALARM SETPOINT
For Toxic Gases HI ALARM = <_ >ppm
UP SET
Choose “DOWN” and one of the following screens will appear:
<gas> ALARM SETPOINT
For Toxic Gases HI ALARM = <_ >ppm
DOWN SET
The ppm value will flash while either of these screens is displayed. Each
time the “UP” or “DOWN” pushbutton is depressed, the setpoint will be
changed by 1 ppm. Holding the pushbutton automatically repeats the action.
For oxygen, choose “LO” or “HI” to change the corresponding “ALARM
SETPOINT”. For example, choose “LO” and the following screen will ap-
pear: