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Model 400E Ozone Analyzer
Instruction Manual
Operating Instructions
P/N 04316 Rev: B
93
6.7.
Diagnostic Mode (DIAG)
A series of diagnostic and configuration tools is grouped together under the menu
heading
DIAG
located under the
SETUP
Menu, in the
MORE
(see APPENDIX B)
subsection. These tools can be used in a variety of troubleshooting and diagnostic
procedures.
The various operating modes available under the DIAG menu is:
Table 6-10: Diagnostic Mode (DIAG) Functions
Display
Mode
Meaning
Manual
Section
DIAG I/O
SIGNAL I/O
: Allows observation of all digital and analog signals
present in the instrument. Allows certain digital signals to be
toggled between ON and OFF states.
6.7.1
DIAG AOUT
ANALOG I/O
: The analyzer is performing an Analog output Step
Test. This calibrates the Analog output channels.
6.7.2
DIAG AIO
ANALOG I/O
CONFIGURATION
: Analog I/O parameters are
available for viewing and configuration.
6.7.3
DIAGO3GEN
O3 GEN CALIBRATION:
The analyzer is calibrating the O
3
Generator of the IZS Option.
6.7.4
DIAG DARK
DARK CALIBRATION
: The analyzer is performing a Dark
Calibration procedure. This procedure measures and stores the
inherent DC offset of the Photometer circuitry.
6.7.5
DIAG FCAL
FLOW CALIBRATION
: The analyzer is performing a calibration
of the Gas Pressure/Flow Sensors.
6.7.6
DIAG TCHN
TEST CHAN OUTPUT
: Used to configure the
A4
Analog Output
channel.
6.5.7