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Model 9110TH NOx Analyzer Overview of Operating Modes
Teledyne Analytical Instruments 91
4.1.2. WARNING MESSAGES
The most common and serious instrument failures will activate Warning Messages that are displayed on
the analyzer’s Front Panel. They are listed on Table 4-3 as follows:
Table 4-3: Warning Messages Defined
MESSAGE MEANING
ANALOG CAL WARNING The A/D or at least one D/A channel has not been calibrated.
AZERO WARN
Auto-zero reading above limit specified by AZERO_LIMIT variable. Value shown
in message indicates auto-zero reading at time warning was displayed.
BOX TEMP WARNING The temperature inside the 9110T chassis is outside the specified limits.
CANNOT DYN SPAN
Contact closure span calibration failed while DYN_SPAN was set to ON.
CANNOT DYN ZERO Contact closure zero calibration failed while DYN_ZERO was set to ON.
CONFIG INITIALIZED Configuration storage was reset to factory configuration or erased.
CONV TEMP WARNING
NO
2
NO converter temperature outside of warning limits specified by
CONV_SET variable.
DATA INITIALIZED DAS data storage was erased before the last power up occurred.
HVPS WARNING
High voltage power supply output outside of warning limits specified by
HVPS_SET variable.
IZS TEMP WARNING
1
IZS temperature outside of warning limits specified by IZS_SET variable.
OZONE FLOW WARNING
Ozone flow outside of warning limits specified by OFLOW_SET variable.
OZONE GEN OFF
Ozone generator is off. This warning message clears itself when the ozone
generator is turned on.
PMT TEMP WARNING
PMT temperature outside of warning limits specified by PMT_SET variable.
RCELL PRESS WARN
Reaction cell pressure outside of warning limits specified by
RCELL_PRESS_SET variable.
RCELL TEMP WARNING
Reaction cell temperature outside of warning limits specified by RCELL_SET
variable.
REAR BOARD NOT DET Motherboard was not detected during power up.
RELAY BOARD WARN
CPU is unable to communicate with the relay PCA.
SAMPLE FLOW WARN The flow rate of the sample gas is outside the specified limits.
SYSTEM RESET The computer has rebooted.
1
Only Appears if the Internal Span Gas Generator option is installed.