Teledyne 9110AH Instruction Manual page 125

TELEDYNE Model 9110AH NO
Table 9-2: Front Panel Warning Messages
Message
SYSTEM RESET
RAM INITIALIZED
SAMPLE FLOW WARN
AZERO WRN XXX.X MV
OZONE FLOW WARNING
VACUUM WARNING
BOX TEMP WARNING
RCELL TEMP WARNING
PMT TEMP WARNING
CONV TEMP WARNING
(table continued)
Analyzer Operator Manual, 01620, Rev. F
X
Description
Analyzer was reset/powered on. This warning occurs every time
the instrument is powered up, as in a power failure. It also
occurs if the RAM or EEPROM is reset.
RAM was erased. The RAM contains the DAS averages, which
get erased when the RAM is initialized. It also contains
temporary data used by the M9110AH to calculate
concentrations. No setup variables are stored in the RAM.
The calculated sample flow is outside the hi/low limits. Since
the flow is calculated, it probably means the pressure has gotten
too low. This warning can be caused by a plugged sample inlet.
AutoZero reading out of specification, XXX.X is actual reading.
Ozone flow out of spec, warnings occur most often due to loss
of vacuum, which causes the ozone flow to go to zero. They also
can occur due to a flow sensor failure.
Vacuum out of spec. warnings are caused by leaks, pump failure
or disconnected pump.
Box temp out of spec. Instrument fan failure, enclosure
temperature failure. Operation of the M9110AH in a too warm
or cold environment will cause degradation of data quality and
shorten the life of the instrument.
Reaction cell temp. out of spec. The warning message is most
often present during initial warm-up or if the connector to the
heaters is not plugged in after dis-assembly. It can also occur if
the thermistor is not in position in the reaction cell.
PMT temp out of spec. The PMT temp has its own proportional
controller on the preamp board. Warnings sometimes occur
during initial operation. The warning can occur if the 7 pin
connector to the interior of the sensor is not plugged in. The test
points on the TEC control board should be checked for proper
voltage (+15 VDC
Converter temp. out of spec. The Converter temp is controlled
by the CPU. It has a thermocouple with amplifier on the
Status/Temp board. Because of the high temperature of the
converter (700 C) the temp warning will tend to be the last
warning to clear as the instrument is powered on.
9-9
0.5)