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Troubleshooting
System Troubleshooting Guides
Most Common
Service Calls
4-2
Mercury System Manual
Next check the appropriate troubleshooting guides in the following
sections:
"Power-Up Failures" on page 4-3
●
"Alarm Messages" on page 4-4
●
"Firmware and Communications Troubleshooting" on page 4-12
●
"System Zero and Calibration Troubleshooting" on page 4-12
●
"Troubleshooting Interface Board Voltages" on page 4-15
●
"Probe Troubleshooting with 82i LEDs" on page 4-15
●
"Oxidizer Troubleshooting" on page 4-16
●
"Troubleshooting - Miscellaneous" on page 4-18
●
Note The Service mode includes parameters and functions that are useful
when making adjustments or diagnosing problems.
Table 4–1 lists the most common calls to the service support center. You
should check this list and the corresponding recommended resolutions first
before calling for service support.
Table 4–1. Troubleshooting – Most Common Service Calls
Malfunction
80i or 81i screen
disappears on laptop
Filter/System span will not
reach 81i value
Eductor pressure near 0 in
sample mode
Venturi reading near 0
while eductor reads 'good'
Venturi reading abnormally
high or low
Filter span will not reach
81i value
80i flow too high
83i ONLY - Venturi
Possible Cause
iPort failure
Hydrator empty or liquid/gas leak
82i Pressure regulator failed
Probe pressure transducer failed
Venturi ports partially or
completely obstructed
Occluded filter or occluded critical
orifice
Broken/leaky critical orifice (pre-
convertor/scrubber)
Isolation valve not rotating
▲
Action
Close any open windows
and restart iPort.
Ensure top reservoir is
filled and the fill logic is
correct.
Tap regulator with
screwdriver, replace if
necessary.
Replace transducer – 83i
only.
Try cleaning venturi, but
replacement is likely.
Try cleaning filter or
orifice, but replacement is
likely.
Inspect probe for break or
plumbing leak.
Inspect visually and check
Thermo Fisher Scientific
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Table of Contents
Troubleshooting
