Teledyne analytical instruments 135 – Teledyne GFC-7001T - Trace CO Analyzer User Manual
Page 135
SetupTeledyne API – Model T300/T300M CO Analyzer
Teledyne
Analytical
Instruments
135
5.9.8.1. SELECTING A TEST CHANNEL FUNCTION FOR OUTPUT A4
The test functions available to be reported are listed in Table 5-9:
Table 5-9: Test Channels Functions available on the GFC7001T/GFC7001TM’s Analog Output
TEST CHANNEL
DESCRIPTION
ZERO
FULL SCALE
*
NONE
TEST CHANNEL IS TURNED OFF.
CO MEASURE
The demodulated, peak IR detector output
during the measure portion of the GFC Wheel
cycle.
0 mV
5000 mV
CO REFERENCE
The demodulated, peak IR detector output
during the reference portion of the GFC
Wheel cycle.
0 mV
5000 mV
SAMPLE PRESS
URE
The absolute pressure of the Sample gas as
measured by a pressure sensor located inside
the sample chamber.
0 "Hg
40 "Hg
SAMPLE FLOW
Sample mass flow rate as measured by the
flow rate sensor in the sample gas stream.
0 cm
3
/m 1000
cm
3
/m
SAMPLE TEMP
The temperature of the gas inside the sample
chamber.
0
C 70C
BENCH TEMP
Optical bench temperature.
0
C 70C
WHEEL TEMP
GFC Wheel temperature.
0
C 70C
O
2
CELL TEMP
1
The current temperature of the O
2
sensor
measurement cell.
n
70
C
CHASSIS TEMP
The temperature inside the analyzer chassis.
0
C 70C
PHT DRIVE
The drive voltage being supplied to the
thermoelectric coolers of the IR photo-
detector by the Sync/Demod Board.
0 mV
5000 mV
*
Maximum test signal value at full scale of test channel output.
1
When option installed.
Once a function is selected, the instrument not only begins to output a signal on the
analog output, but also adds TEST to the list of test functions viewable via the front
panel display.