User Manual

16 • Alarms Model GD-K11D Operator’s Manual
Alarms
This section describes the Model GD-K11D’s visual indications for normal, alarm, and fail
conditions. This section also suggests response to these conditions.
Alarm Indications
Table 5 lists the indications for normal, alarm and fail conditions.
The Model GD-K11D includes an alarm delay feature. The alarm indications listed below
are delayed by 3 seconds once the Model GD-K11D recognizes an alarm or fail condition.
Responding to Alarms
This section suggests response to gas and fail alarms.
Responding to gas alarms
1. Follow your established procedure for an increasing toxic gas condition.
2. When the display reading falls below the alarm point, the alarm circuit automatically
resets itself. The AL (alarm) light turns off.
Responding to fail alarms
1. Set the correct flow rate with the flow adjust valve.
2. If you cannot set the correct flow rate, check the sample lines for obstructions or kinks.
3. Calibrate the Model GD-K11D as described on page 21.
4. If the fail condition continues, replace the sensor as described on page 18.
5. If the fail condition continues, contact RKI Instruments, Inc., for further instruction.
Table 7: Model GD-K11D Alarm Indications
Condition Cause(s) Indications Alarm Contacts
Normal • Start up complete
• No gas or fail alarms
PW/TR light De-energized
Gas
Alarm
Increasing gas reading at
or above alarm point
AL light Energized
Fail
Alarm
Disconnected sensor • E-01 on screen
• PW/TR light
1
• AL light
• 0.5 mA output
De-energized
Low Flow
Alarm
Low flow rate • E-05 on screen
• PW/TR light
1
• Low flow (red) light
on main board
• 0.5 mA output
De-energized
1
The PW/TR (power) light flashes.