Brochure

Operation CO
2
Monitor
14 Instruction 3015-9000 Rev 2
2.11.4 Fault Codes
FAULT CODES ARE ADDITIVE. For example: A fault code of <0003> indicates that both a Box Temperature Fault
<0001> and a Bench Temperature Fault <0002> have occurred.
Code Fault Name Description
<0001>
Box Temperature
Fault
Enclosure temperature is outside normal range (or IR detector has failed).
Check that the monitor is not being subjected to extreme temperatures. Use
the
DIAG function to check the Box Temperature.
<0002>
Bench Temperature
Fault
Optical bench is outside normal operating range (or IR detector has failed).
Check that the monitor is not being subjected to extreme temperatures.
<0004>
Manifold Pressure
Fault (Sensor 1)
The manifold pressure is outside its normal operating range (or IR detector
has failed). Enter the
DIAG function and record ALL data. Call the factory with
this information for further instructions.
<0020>
Manifold Pressure
Fault (Sensor 2)
See fault code <0004>.
<0040> Fill Flow Fault
The purge-
air bag’s pressure drop is outside expected limits. Check for a
punctured bag or disconnected tubing.
<0080> Over Range Fault Monitor exposed to a gas level that exceeded the IR sensor limits.
<0100> Zero Filter Fault
The purge-air bag is contaminated with gas. Take monitor to a clean-air area
and use the EMPTYBAG and FILLBAG functions to decontaminate the purge-
air bag.
<0200> Gain Set Fault
The digipot autotune sequence has failed. Call the factory for further
instructions.
<0400> A/D Fault
A fault has occurred in the analog-to-digital circuitry. Contact the factory
with this information for further instructions.
<0800> Sample Flow Fault
Check for: A restriction in the gas-sample inlet or exhaust; a blocked internal
filter; or a failed pump.
<1000> Purge Flow Fault
Check for: A restriction in the gas-sample exhaust; a blocked internal filter;
or a failed pump. Once the purge air stream has been restored, the monitor
will return to normal operation after it completes a purge cycle.
<2000> Bag Fill Fault
The purge-air bag did not fill within the expected time allotment. Check for a
punctured bag or disconnected tubing.
<4000> Zero Range Fault:
The IR detector’s output voltage is out of tolerance. Enter the DIAG function
and record all data. Call the factory with this information for further
instructions.
<8000> Clipping Fault
The detector voltage may be out of tolerance. Use the
DIAG function to check
the IR detector voltage. Call the factory with this information for further
instructions.
2.12 Clearing the PPM, Alarms and Faults Data
Up to 200 gas measurements and 30 alarm and fault events are stored by the monitor.
To clear stored data, first display the data to be cleared by selecting the PPM LOG, ALARMS or FAULTS function.
Next, press both the ENTER and Keypad Right buttons at the same time. A single, long tone should be heard when
the data has been successfully cleared.