Teledyne 9110EH - Nitrogen Oxides Analyzer - Manual (Page 75)

Model 9110EH Instruction Manual Operating Instructions
6.7. Setup - Diagnostics (DIAG)
A series of diagnostic tools is grouped together under the SETUP-MORE-DIAG menu. As
these parameters are dependent on firmware revision, the menu trees are listed in detail in
Appendix A. The individual parameters, however, are explained in more detail in the
following section, indicated in Table 0-6. These tools can be used in a variety of trouble-
shooting and diagnostic procedures and are referred to in many places of the maintenance
and trouble-shooting sections.
Table 0-6: M200E Diagnostic (DIAG) Functions
Diagnostic Function and Meaning Front Panel
Mode Indicator
Section
SIGNAL I/O: Allows observation of all digital and analog signals in
the instrument. Allows certain digital signals such as valves and
heaters to be toggled ON and OFF.
DIAG I/O 6.7.1
ANALOG I/O: When entered, the analyzer performs an analog output
step test. This can be used to calibrate a chart recorder or to test the
analog output accuracy.
DIAG AOUT 6.7.2
ANALOG I/O CONFIGURATION: Analog input/output parameters
are available for viewing and configuration. DIAG AIO 6.7.3
TEST CHAN OUTPUT: Configures the A4 analog output channel. DIAG TCHN 6.7.2
OPTIC TEST: When activated, the analyzer performs an optic test,
which turns on an LED located inside the sensor module near the PMT
(Fig. 10-15). This diagnostic tests the response of the PMT without
having to supply span gas.
DIAG OPTIC 6.7.5
ELECTRICAL TEST: When activated, the analyzer performs an
electric test, which generates a current intended to simulate the PMT
output to verify the signal handling and conditioning of the PMT
preamp board.
DIAG ELEC 6.7.6
OZONE GEN OVERRIDE: Allows the user to manually turn the O
3
generator on or off. This setting is retained when exiting DIAG.
DIAG OZONE 6.7.7
FLOW CALIBRATION: This function is used to calibrate the gas flow
output signals of sample gas and ozone supply. These settings are
retained when exiting DIAG.
DIAG FCAL 6.7.8
M9110EH Rev 0 61