Diagnostic Tests - Teledyne 300M Instruction Manual

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A

5.2 Diagnostic Tests

The diagnostic tests are used to help diagnose a problem in the analyzer and should only be used
by skilled maintenance people since they can potentially interfere with the Carbon Monoxide
reading. Table 5-1 lists low level diagnostic tests. To get into the diagnostic test mode, press
SETUP-MORE-DIAG. When the diagnostic mode is entered, a message is sent to the RS-232
channel indicating entry into the diagnostic mode. The buttons that are available to the operator
are described below.
The TEST button is used to scroll through the test measurements until the one of interest is
displayed. To turn the test on, press the OFF/ON button. Viewing test measurements in the
diagnostic mode is especially useful for viewing the results of a diagnostic test.
The PREV button goes to the previous diagnostic test. When pressed, the CPU turns the current
diagnostic test OFF if it is ON. The NEXT button goes to the next diagnostic test. When pressed,
the CPU turns the current diagnostic test OFF if it is ON. The EXIT button exits the diagnostic
mode and turns all the diagnostic tests OFF. This ensures that a diagnostic test is not accidentally
left ON. A message is also sent to the RS-232 channel to indicate that the diagnostic mode has
been exited.
Table 5-1: Diagnostic Tests
TEST #
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Name
NONE
CO MEASURE
CO
REFERENCE
SAMP PRESS
SAMP FLOW
SAMP TEMP
BENCH TEMP
WHEEL TEMP
CHASSIS TEMP
DCPS VOLT
DAS AVERAGE
Signal
No output
CO detector measure value
CO detector reference value
Sample pressure
Sample flowrate
Sample temperature
Optical bench temperature
Outputs filter wheel temp.
Outputs Chassis temp
Outputs DC power
Current DAS average
5-2
Nominal Value
0 mV
4500 mV
4200 mV
3650 mV
2000 mV
3000 mV
3900 mV
3900 mV
2740 mV
2500 mV
Any