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Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
Table 10-2: Test Function Values
Test Function Meaning Acceptable Values
Corrective Action for
Unacceptable Values
RANGE The Current Full Scale
Range Setting of the
analyzer's analog outputs
Any None required
CO MEAS The most recent detector
reading taken in Measure
mode
2500-4800 mV Check and adjust IR source and
Sync Demodulator as described
in Section 10.6.5 and 10.6.6
CO REF The most recent detector
reading taken in
Reference mode
2500 - 4800 mV Check and adjust IR source and
Sync Demodulator as described
in Section 10.6.5 and 10.6.6
MR RATIO The ratio of the CO
MEAS value to CO REF
value
1.00 - 1.5 Check CO REF and CO MEAS
values as described above.
PRES The absolute pressure of
the sample gas in the
absorption cell
0" - 1.0" Hg below
ambient pressure
Check for pneumatic system
problems. See Section 10.6.1.
Check for pressure transducer
problems. See Section 10.6.5
SAMPLE FLOW Sample flow rate 700 - 900 sec/min Check for pneumatic system
problems. See Section 10.6.1.
Check for flowmeter problems.
See Section 10.6.5
SAMPLE TEMP The temperature of the
sample gas in the
absorption cell
30° - 50°C
(After warm-up)
See Section 10.6.2
BENCH TEMP The temperature of the
Optical Bench
50°C
(After warm-up)
See Section 10.6.2
WHEEL TEMP The temperature of the
Gas Filter Wheel
68°C
(After warm-up)
See Section 10.6.2
BOX TEMP The temperature inside
the analyzer chassis
up to 10°C above
ambient
See Section 10.6.2
DCPS DC Power Supply
reference - A composite
of all voltages provided
by the DC Power Supply
2500 ± 200 mV
See Section 10.6.4
10-6