NomoLine ISA Service Manual Chapter 3: Troubleshooting
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Symptom Possible Cause Correction
Gas readings are
questionable
• Incorrect sampling line
used
• Sampling line attached
incorrectly
• Sampling line leaking
• Internal error
• Use the correct sampling
line with the NomoLine ISA
device.
• Disconnect and reconnect
the sampling line to the
NomoLine ISA device.
• Follow the Directions for Use
to properly connect the
sampling line.
• Check sampling line for
leaks.
• Replace sampling line.
• If persistent, the NomoLine
ISA device requires service.
See Return Procedure on
page 35.