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Teledyne analytical instruments 135 – Teledyne GFC-7001T - Trace CO Analyzer User Manual

Page 135

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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 70C

BENCH TEMP

Optical bench temperature.

0

C 70C

WHEEL TEMP

GFC Wheel temperature.

0

C 70C

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 70C

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.