Teledyne 9110TH - Nitrogen Oxides Analyzer - Manual (Page 77)

Operating Instructions Model 9110TH NOx Analyzer
Teledyne Analytical Instruments 57
Table 4-3: List of Warning Messages
MESSAGE DEFINITION
ANALOG CAL WARNING
The instrument’s analog-to-digital converter (A/D) circuitry or one of the analog
outputs are not calibrated.
AZERO WRN XXX.X MV
The reading taken during the Auto-zero cycle is outside the specified limits. The
value shown here as “XXX.X” indicates the actual auto-zero reading at the time of
the warning.
BOX TEMP WARNING The temperature inside the 9110TH/M chassis is outside the specified limits.
CANNOT DYN SPAN Remote span calibration failed while the dynamic span feature was ON.
CANNOT DYN ZERO Remote zero calibration failed while the dynamic zero feature was ON.
CONFIG INITIALIZED Configuration storage was reset to factory configuration or was erased.
CONV TEMP WARNING NO
2
converter temperature is outside of specified limits.
DATA INITIALIZED DAS data storage was erased.
HVPS WARNING High voltage power supply for the PMT is outside of specified limits.
OZONE FLOW WARNING Ozone flow is outside of specified limits.
OZONE GEN OFF
Ozone generator is off. This is the only warning message that automatically
clears itself when the ozone generator is turned on.
PMT TEMP WARNING PMT temperature is outside of specified limits.
RCELL PRESS WARN Reaction cell pressure is outside of specified limits.
RCELL TEMP WARNING Reaction cell temperature is outside of specified limits.
REAR BOARD NOT DET The firmware is unable to communicate with the motherboard.
RELAY BOARD WARN The firmware is unable to communicate with the relay board.
SAMPLE FLOW WARN The flow rate of the sample gas is outside the specified limits.
SYSTEM RESET The computer rebooted or was powered up.
To view and clear warning messages
SAMPLE A1:NXCNC1=100PPM NOX=XXX.X
TEST CAL MSG CLR SETUP
Make sure warning messages are
not due to real problems.
Press CLR to clear the current
message.
If more than one warning is active, the
next message will take its place
Once the last warning has been
cleared, the analyzer returns to
SAMPLE mode
SAMPLE A1:NXCNC1=100PPM NO=XXX.X
< TST TST > CAL
MSG CLR SETUP
SAMPLE HVPS WARNING NO2=XXX.X
TEST CAL
MSG CLR SETUP
TEST deactivates warning
messages
MSG activates warning
messages.
> keys replaced with
TEST key
All Warning messages are hidden,
but MSG button appears
NOTE:
If the warning message persists
after several attempts to clear it,
the message may indicate a
real problem and not an artifact
of the warm-up period
Figure 4-3: Viewing and Clearing 9110TH/M WARNING Messages