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Teledyne API Model 100AH SO
2
Analyzer Instruction Manual, 02417, Rev. D
Table 10-3: Summary of Diagnostic Modes
DIAG Mode Description
SIGNAL I/O Gives access to the digital and analog inputs and outputs on the V/F
board. The status or value of all of the signals can be seen. Some of
the signals can be controlled from the keyboard. Table 10-4 gives
details on each signal and information on control capabilities.
NOTE: Some signals can be toggled into states that indicate
warnings or other faults. These settings will remain in effect until
DIAG mode is exited, then the M100AH will resume control over
the signals.
ANALOG OUTPUT Causes a test signal to be written to the analog output DAC's. The
signal consists of a scrolling 0%, 20%, 40%, 60%, 80%, 100% of
the analog output value. The scrolling may be stopped by pressing
the key underneath the % display to hold that value. The exact
voltage values depend on the jumper settings on the analog output
buffer amplifiers.
DAC CALIBRATION The analog output is created by 4 digital-to-analog converters. This
selection starts a procedure to calibrate these outputs. Refer to
Section 10.3.2.1 for a detailed procedure.
OPTICAL TEST Sets the M100AH into a known state and turns on an LED near the
PMT to test the instrument signal path. See Section 10.1.3.3 for
details on using this test.
ELECTRICAL TEST Tests just the electronic portion of the PMT signal path. Used in
conjunction with optic test, see Section 10.1.3.2.
LAMP CAIBRATION This feature allows to update the Lamp Calibration value. Displayed
value is the current lamp intensity and pressing ENTR key will
update the Lamp Calibration value. Refer Section 10.4.2 for UV
Lamp adjustment. See also Section 10.1.6 Factory Calibration
Procedure.
FLOW CALIBRATION This feature allows to enter the actual sample flow. Once the flow is
calibrated, it will compute the flow automatically from the pressure
measurements. Refer Section 10.3.5.
TEST CHANNEL
OUTPUT
This feature allows to output scaled voltage of most test
measurement through the analog output terminal. Refer
Section 10.1.5.
RS-232 Causes a 1 second burst of data to be transmitted from the RS-232
port. Used to diagnose RS-232 port problems. See Sections 10.1.3.6
and 4.3.1.2 for RS-232 port diagnostic techniques.
10-12