General Maintenance and Troubleshooting
4
4.1 Analyzer Status Indicators
4.1.1 Operator Controls
Color Touchscreen
The color touchscreen displays all mainte‐
nance functions and data in a graphical dis‐
play. In addition it can also display both real-
time and stored chromatograms. The stored
chromatograms include voltages and cycle
times for future comparison as well as zoom
and pan features. Operational and routine
maintenance tasks for the analyzer can be
performed from the color touchscreen interac‐
tive display screens and menus. System se‐
curity is assured with multiple levels of pass‐
word protection for all analyzer-operating
functions.
A color touchscreen emulator (also called a Human Machine Interface, or HMI, emulator) is
available from the Maxum Gas Chromatograph Portal (GCP) software. This emulator allows
a user to perform color touchscreen tasks without being located at the unit.
Status LEDs
Purge (Flashing Red)
Purge pressure lost
Fault (Red)
"Failure" status is active
Warning (Yellow)
"Maintenance request" status signal is active
Power (Green) 24 V power supply is on
All LEDs are on during power-up boot.
Maxum edition II Analyzer General Maintenance
Manual, August 2018, A5E42019842001 19
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