Teledyne GFC-7001T - Trace CO Analyzer - Manual (Page 88)

OverviewTeledyne API – Model T300/T300M CO AnalyzerTeledyne API – Model T300/T300M CO Analyzer
Teledyne Analytical Instruments 88
O
2
Range 1 O
2
RANGE % The range setting for the optional O
2
Sensor.
CO
2
Range 2 CO
2
RANGE % The range setting for the optional CO
2
Sensor.
CO Measure CO MEAS MV
The demodulated, peak IR detector output during the measure
portion of the GFC Wheel cycle.
CO Reference CO REF MV
The demodulated, peak IR detector output during the reference
portion of the GFC Wheel cycle.
Measurement /
Reference Ratio
MR Ratio -
The result of CO MEAS divided by CO REF. This ratio is the
primary value used to compute CO concentration. The value
displayed is not linearized.
Sample Pressure PRES In-Hg-A
The absolute pressure of the Sample gas as measured by a
pressure sensor located inside the sample chamber.
Sample Flow SAMPLE FL cm 3 /min
Sample mass flow rate as measured by the flow rate sensor in the
sample gas stream.
Sample
Temperature
SAMP TEMP C The temperature of the gas inside the sample chamber.
Bench
Temperature
BENCH TEMP C Optical bench temperature.
Wheel
Temperature
WHEEL TEMP C GFC Wheel temperature.
Box Temperature BOX TEMP C The temperature inside the analyzer chassis.
O
2
Cell
Temperature 1
O
2
CELL TEMP 3 C The current temperature of the O
2
sensor measurement cell.
Photo-detector
Temp. Control
Voltage
PHT DRIVE mV
The drive voltage being supplied to the thermoelectric coolers of the
IR photo-detector by the sync/demod Board.
Slope SLOPE -
The sensitivity of the instrument as calculated during the last
calibration activity.
Offset OFFSET -
The overall offset of the instrument as calculated during the last
calibration activity.
O
2
Sensor
Slope 1
O
2
SLOPE - O
2
slope, computed during zero/span calibration.
O
2
Sensor Offset
1
O
2
OFFSET - O
2
offset, computed during zero/span calibration.
CO
2
Sensor
Slope 2
CO
2
SLOPE - CO
2
slope, computed during zero/span calibration.
CO
2
Sensor
Offset 2
CO
2
OFFSET - CO
2
offset, computed during zero/span calibration.
Current Time TIME -
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 when the optional O
2
sensor is installed.
2 Only appears when the optional CO
2
sensor is installed.
3 Only available on the GFC7001T.
4.1.2. WARNING MESSAGES
The most common instrument failures will be reported as a warning on the analyzer’s
front panel and through the COMM ports. Section 12.1.1 explains how to use these
messages to troubleshoot problems. Section 4.1.2 shows how to view and clear warning
messages.
Table 4-3: List of Warning Messages
MESSAGE MEANING
ANALOG CAL WARNING The instrument’s A/D circuitry or one of its analog outputs is not calibrated.