MAX 4000 PLUS ELECTROMETER 14
10 Troubleshooting
10.1 Questionable Readings
If readings are off, determine if there is any leakage from the MAX 4000 Plus or ionization
chamber. Follow steps 1 - 8 under General Operation.
If going through the General Operation instructions does not resolve leakage issues, a dirty
connector could be the cause.
Over the years, Standard Imaging has had product reports of drift or leakage involving its ion
chambers, well chambers and electrometers. During the investigation and/or servicing of
these products it became apparent a significant portion of these reports were caused by dirty
triax connectors. The cause is typically dust that has collected on the inside connector.
To minimize these reports and unnecessary service, Standard Imaging is providing a triax
connector cleaning procedure. This triax connector cleaning procedure should be periodically
completed or whenever there are concerns of drift or leakage. Heavier product use may
require more frequent cleanings.
Prior to cleaning a triax connector, ensure:
• The ion chamber or well chamber is disconnected from the electrometer.
• There is no water or moisture visible in the triax connector.
To clean a dirty triax connector:
• Remove the connector cap (if applicable).
• Use only a dry and oil free compressed air source, such as Chemtronics® Ultra Jet.
• Gently blow dirt and contaminants from the inside of the connector, moving the air
source in a circular manner a few inches from the connector.
After cleaning a dirty triax connector:
• Use the connector cap when not in use (if applicable).
Do not:
• Use sharp objects to attempt to clean a dirty triax connector.
• Use a compressed gas other than air.
• Use a compressed gas source that may have moisture or oil in the source or lines.
• Use your mouth to blow on the connector.
• Disassemble the connector.
• Touch the internal parts of the connector with your finger.
If this procedure does not resolve the drift or leakage issues, contact the Customer Service
Administrator to coordinate the return the product to Standard Imaging for further service.
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