Maintenance and Troubleshooting | 6-29
NOTE
• Do the source lamps need replacement (weak lamps)? If not, are the
source lamps aligned?
• If the lamps were replaced, is the correct socket connected to the cor-
rect lamp? Lamp 1 is the closest to the Optical Bench board.
• Have there been any leaks from the Measuring Cell? If so, check the
condition of the Optical Filters, Beam Splitter, Mirrors, Windows,
Lenses, and o-rings in the Optical Bench and in the Measuring Cell
(including Reflector Block). Contact AMETEK for procedures not dis-
cussed in this manual.
Refer to the “Troubleshooting and Diagnostics” section in this chapter
for alarm conditions and corrective action.
Auto-Setup Fault Message and Corrective Action
If during an Auto-Setup “Warning Auto Setup” is displayed next to Micro
State on the Status tab, it may indicate a problem with the PMT Level or
PMT Balance signal. See “Microcontroller Board Alarm Conditions and
Corrective Action” in this chapter for corrective action to take to reset this
alarm. Restart the Auto-Setup after this alarm has been corrected.
The Auto-Setup Sequence
To perform an Auto-Setup:
1. From the Gas Calibration dialog box, change the Flow Control setting
to “Zero.” Click OK then Apply. Do not save the changes to EEPROM.
Allow the Zero gas to flow for 2–3 minutes. Check the rotameter to
ensure Zero gas is flowing (approximately 4.5 L/min at 80 psi).
2. From the Output Setup dialog box, click Alarm Disable to disable
concentration alarms. Click OK.
3. From the Optical Bench dialog box, record the PMT Level and PMT
Balance.
Click the Auto-Setup button to initiate the Auto-Setup, then click OK.
The process takes about 3 minutes to complete.
Status (tab)
<<Micro State>>
Setup (tab)
Gas Calibration<<Flow
Control>>
Setup (tab)Output
Setup (tab)Optical
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