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• TRIGGER FAULT – No trigger from IR source pulser. Contact factory with all information from the
DIAGNOSTIC SCREEN for farther instructions.
Diagnostic Screen
To get to the DIAGNOSTIC SCREEN – From the SYSTEM SCREEN press the button adjacent to the
HGM300 that you wish to view, this takes you to the HGM SETUP SCREEN, from there press the button
adjacent DIAG.
Non Critical Faults
• BOX TEMP FAULT – Internal – Enclosure temperature is outside normal range (or IR sensor has
failed). Check the installation to verify that the monitor is not being subjected to extreme
temperatures. Verify that the ventilation holes are not obstructed. Check the DIAGNOSTIC SCREEN
for the ZERO temperature, BNCH temperature and BOX temperature. Call the factory with this
information for farther instructions.
• BENCH TEMP FAULT – Optical bench is outside of normal operating range (or sensor has failed).
Check the installation to verify that the monitor is not being subjected to extreme temperatures.
Check the DIAGNOSTIC SCREEN for the ZERO temperature, BNCH temperature and BOX
temperature. Call the factory with this information at for farther instructions.
• PRESSURE SENSOR – Manifold pressure is outside normal operating range (or sensor has failed).
Check the DIAGNOSTIC SCREEN record ALL data and call the factory with this information
for further instructions.
• LOOP FAULT – This would only be displayed if the dual 4-20mAdc option was installed and one or
both current loops are open. Check the wiring to load/monitoring circuit on both 4-20mA loops.
• CONFIG FAULT – There is an error in the ZONE SETUP SCREEN, Number of zones field. Check to
verify that the actual number of zones installed in the monitor is equal to the number indicated in the
Zone Setup Screen. Check to insure that the manifold solenoid cable connector is securely fastened
to its terminal connector. Check for illegal parameter. Reset to factory default settings.
Reset to Factory Default Settings
NOTE: Performing this function wipes out all program parameters, alarms, faults, trends and log files.
Resetting the HGM300 – Hold down the left most button inside the HGM300 – cycle the power off then
on while holding that button down – listen for five beeps then release the button. Reprogram the
HGM300.
Resetting the RDM800 – Occasionally it will be necessary to rest the RDM800 to factory default settings.
From the System Screen, press and hold the button adjacent to the ALARM function, cycle power off then
on, listen for five beeps.
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