Table 9-4: Diagnosticm - Teledyne 200A Instruction Manual

Teledyne API Model 200A NO
Table 9-4: Diagnostic Mode - Signal I/O (Continued)
No. Signal
35 DAC_CHAN_0
36 DAC_CHAN_1
37 DAC_CHAN_2
38 DAC_CHAN_3
39 NOX_CONC
40 NO_CONC
41 NO2_CONC
42 TEST_OUTPUT
9.1.3.2 Electric Test
This function injects a constant voltage between the preamplifier and the buffer amplifier on the
preamp board. Electric test checks part of the preamp, the V/F and computer for proper
functioning. The result of electric test should be a smooth quiet signal as shown by constant
values for the NO, NO
analog outputs should produce a smooth quiet trace on a strip chart.
Procedure:
1. Scroll the TEST function to PMT.
2. Press SETUP-MORE-DIAG, then scroll to ELECT TEST by pressing the NEXT button.
When ET appears, press ENTR to turn it on.
Analyzer Instruction Manual, 02246, Rev. F1
X
Control
NO
NO
NO
NO
YES
YES
YES
YES
concentrations, the NO
x
9-16
Description
Output of NO channel in mV.
x
Output of NO channel in mV.
Output of NO channel in mV.
2
Test Channel output. Not implemented in current
software.
NO DAC programming voltage. The following 4
x
signals can be set to output specific voltages to each
DAC. Use in conjunction with ANALOG OUTPUT
test to check each DAC output channel. The value
keyed in should appear on the the appropriate analog
output channel. This value overrides data being
written from the analyzer. Value reverts to instrument
output when function is exited.
NO DAC programming voltage. See above for
description.
NO DAC programming voltage. See above for
2
description.
TEST channel programming voltage. See above for
description.
concentration should be near zero. Likewise the
2