RKI Instruments EAGLE 2 Manual - Manual (Page 170)

160 • Maintenance EAGLE 2 Operator’s Manual
Maintenance
The PID sensor includes user serviceable parts. They are the lamp and the
electrode stack. The following sections include troubleshooting instructions
as well as procedures for cleaning the lamp, replacing the lamp, replacing the
electrode stack, and replacing the PID sensor.
Troubleshooting
The troubleshooting table describes symptoms, probable causes, and
recommended action for problems you may encounter with the PID sensor.
Cleaning the PID Sensor’s Lamp
Clean the lamp if you notice a significant drop in sensitivity from one
scheduled calibration to another or if you are not able to calibrate the PID
channel. See the “PID EAGLE 2 Spare Parts” on page 178 for lamp cleaning
kit ordering information. The lamp cleaning kit includes the following items:
• an electrode stack removal tool
Symptoms Probable Causes Recommended Action
• PID channel
doesn’t exit its
warm up state and
the reading
continues to scroll
through -200, -100,
and 0 for a high
range sensor and
-2.00, -1.00, and
0.00 for a low
range sensor.
• The PID sensor has not
come out of its warm up
state.
1. Clean the lamp.
2. Replace the lamp.
3. Replace the electrode stack.
4. If the difficulties continue, contact
RKI Instruments, Inc. for further
instruction.
• The PID sensor
fails to calibrate.
• The auto calibration
values may not match the
cylinder gas concentration
(auto calibration only).
• The sample gas is not
reaching the sensor
because of a bad
connection.
• The calibration cylinder
may be out of gas or is
outdated.
• The lamp may need to be
cleaned.
• The electrode stack may
need to be replaced.
1. Make sure the EAGLE 2 has
been properly set up for
calibration.
2. Check all calibration tubing for
leaks or for any bad connections.
3. Verify that the calibration cylinder
contains an adequate supply of
sample.
4. Clean the lamp.
5. Replace the electrode stack.
6. If the difficulties continue, contact
RKI Instruments, Inc. for further
instruction.