Troubleshooting – RKI Instruments GD-K77D User Manual
Page 42

37 • Troubleshooting
Model GD-K77D
Operator’s Manual
Troubleshooting
Trouble Alarm: Flickering PW/TR Lamp
When the PW/TR lamp is flashing, this indicates a trouble condition. The following are
typical trouble conditions:
Prevention
A trouble alarm may result from disconnected wiring or short circuits between the Model
GD-K77D and devices connected to it. To reduce the reduce the possibility of a trouble
alarm, do the following:
•
Check the wiring on the Model GD-K77D as well as the wiring on all peripheral
equipment.
•
Check the wiring on the detection system.
•
Check all tube connections.
Table 4: Trouble Alarm: Condition, Cause, and Remedies
LED
Condition
Cause
Remedy
E-00
System Fault
Memory Problem in the
Detector
Call RKI Instruments, Inc. for assistance.
E-01
Sensor Fault
Connector Contact
Failure or Sensor Cable
is Disconnected
Check the sensor cable to make sure that it
is properly connected to the sensor and to
the amplifier board.
For further assistance, contact RKI Instru-
ments, Inc.
E-04
Zero Follower
Fault
Usually High Zero Drift
Calibrate the Unit.
Replace the Sensor.
E-05
Low Flow
Clogged Filter or Dete-
riorated Pump
Check the flowmeter to make sure the flow
ball is between the two red flow lines. Adjust
the flow rate if required.
The dust filter may be clogged. Examine the
dust filter; clean or replace it as required.
Check that the Model GD-K77D is mounted
firmly or that the fixing screw is fastened
securely.
The tubing on the gas-in or gas-out side of
the Model GD-K77D may be clogged or bro-
ken. Check and repair the pipes as required.
The Model GD-K77D’s pump may need to
be replaced.