RKI Instruments GD-K77D - Manual (Page 31)

Model GD-K77D Operator’s Manual Operation • 26
CAUTION: The gas alarms will only work in Detection Mode. If the Model GD-K77D is left in
Maintenance Mode for ten hours or more, it will switch to Detection
Mode
automatically.
Alarm Point Confirmation
When checking the alarm point, follow these steps:
1. With the front control cover of the Model GD-K77D flipped open, press and hold the
Mode switch for three seconds to start Maintenance Mode. The display will show 1-1
and the Skip light will flash.
2. Select 1-2, Alarm Check Point by using the FLOW ADJ switch.
3. Press the TEST/SET switch to display the Alarm Set-point. The ALM1 LED will flash.
The readings shown below are typical. Use the FLOW ADJ switch to display the
ALM2 set-point. The ALM2 LED will start flashing.
LED indication Display indication
PW/TR ALM1 ALM2 SKIP
1 1
LED indication Display indication
PW/TR ALM1 ALM2 SKIP
1 2
LED indication Display indication
PW/TR ALM1 ALM2 SKIP
PW/TR ALM1 ALM2 SKIP
3. 0 0
6. 0 0