Performing Start-Up Diagnostic Checks - Ametek 993X Manual

Performing Start-Up Diagnostic Checks

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CONFIGUV Bench
Temp Control
50 | 993X Gas Analyzer
This checklist describes problems that may be encountered while powering up
the analyzer and/or preparing it for normal operation. If the analyzer experi-
ences problems during power-up, review this checklist and perform the cor-
responding corrective action to fix any problems.
Problem Encountered
One or both source lamps are not firing. Note that the lamps are almost completely covered
by a housing, but a flashing orange glow will be visible when looking at the lamp from the
socket end, or when looking through the viewing holes.
Corrective Action
Take appropriate safety precautions and:
• On the UV Bench Controller board, check the connectors from the lamp-socket cables to
ensure they are properly connected and there is no damage.
• Check to ensure that both lamp-socket connectors are fully inserted into the base of the
lamps.
• Make adjustments to the lamps. Perform an Auto-Setup, if necessary, to ensure the lamps
are operating at peak efficiency.
Problem Encountered
Temperature zone values do not increase.
Corrective Action
Take appropriate safety precautions and:
• Check the fuses for the temperature zones to ensure they have not blown. These fuses are
located on the AC Distribution board in the Electronics Enclosure (see Figures 3).
• Check for proper wiring terminations for the appropriate temperature zone.
• Check the Temperature Control Module to see if it has been triggered. A RED LED on the
module will indicate a problem. To reset the Temperature Control Module and correct this
problem, lift its cover and press its Reset button, or cycle the analyzer AC mains power Off-
On.
Problem Encountered
The Bench or Cell temperature zone value is greater than 3 °C of its setpoint temperature
(view the UV Bench Temperature Control screen to check its Setpoint value). A high tem-
perature value may indicate a faulty RTD for the related temperature zone.
Corrective Action
Take appropriate safety precautions and check the related RTD for a short or an open circuit.
If necessary, replace the RTD with an AMETEK-approved replacement part. Contact AMETEK
Service for assistance.
Problem Encountered
Temperature Low alarm(s) remains active after the analyzer has been allowed to warm up for
at least 30 minutes.
The "Bench Temperature Low" or "Cell Temperature Low" or "Zone'#' Temperature Low"
status will typically be triggered upon start-up due to low temperatures in these temperature
zones, but will reset after the analyzer has warmed up to normal operating temperatures.
Corrective Action
Take action to clear the alarms if these or other alarms remain active after the analyzer has
warmed up to normal operating temperature.
PN 903-8820, Rev A