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Model 9110TH NOx Analyzer Overview of Operating Modes
Teledyne Analytical Instruments 89
DISPLAY PARAMETER UNITS DESCRIPTION
RANGE1
RANGE2
MGM
If AUTO Range mode has been selected, two RANGE functions will
appear, one for each range:
RANGE1: The range setting for all analog outputs.
RANGE2: The HIGH range setting for all analog outputs.
RANGE1
RANGE2
RANGE3
If the IND Range mode has been selected, three RANGE functions will
appear, one for each range:
RANGE1:
NO
x
concentration output un A1.
RANGE2: NO concentration output un A2.
RANGE2:
NO
2
concentration output un A3.
NOX STB
STABILITY PPB
The standard deviation of concentration readings of the selected gas.
Data points are recorded every ten seconds. The calculation uses the
last 25 data points.
SAMP FLW
SAMPFLOW CC/M
Gas flow rate of the sample gas into the reaction cell.
OZONE FL
OZONEFLOW CC/M
Gas flow rate of O
3
gas into the reaction cell.
PMT
PMT MV
The raw signal output of the PMT.
NORM PMT
NORMPMT MV
The signal output of the PMT after is has been normalized for temperature,
pressure, auto-zero offset, but not range.
AZERO
AUTOZERO MV
The PMT signal with zero NO
X
,
which is usually slightly different from 0 V.
This offset is subtracted from the PMT signal and adjusts for variations in
the zero signal.
HVPS
HVPS V
The output power level of the high voltage power supply.
RCELL TEMP
RCELLTEMP C
The temperature of the gas inside the reaction cell temperature.
BOX TEMP
BOXTEMP C
The temperature inside the analyzer chassis.
PMT TEMP
PMTTEMP C
The temperature of the PMT .
IZS TEMP
1
IZSTEMP C
The temperature of the internal span gas generator's permeation tube.
MOLY TEMP
CONVTEMP C
The temperature of the analyzer's NO
2
NO converter.
RCEL
RCELLPRESS IN-HG-A
The current pressure of the sample gas in the reaction cell as measured at
the vacuum manifold.
SAMP
SAMPPRESS
IN-HG-A
The current pressure of the sample gas as it enters the reaction cell,
measured between the NO/NO
x
and Auto-Zero valves.
NOX SLOPE
NOXSLOPE
The slope calculated during the most recent NO
x
zero/span calibration.
NOX OFFS
NOXOFFSET MV
The offset calculated during the most recent NO
x
zero/span calibration.
NO SLOPE
NOSLOPE
The slope calculated during the most recent NO zero/span calibration.
NO OFFS
NOOFFSET MV
The offset calculated during the most recent NO zero/span calibration.
TEST
TESTCHAN MV
Displays the signal level of the Test Function that is currently being
produced by the Analog Output Channel A4.
TIME
CLOCKTIME HH:MM:SS
The current time. This is used to create a time stamp on DAS readings,
and by the AutoCal feature to trigger calibration events.
1
Only appears if Internal Span Gas Generator option is installed.
To view these TEST functions, press,