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Section 6
6.1 Troubleshooting table
Problem
Communication failure
Flow failure
High count alarm
Sensor failure
Troubleshooting
Use
Table 15
for help with problems that may occur with the system.
Table 15 Troubleshooting table
Possible causes
Incorrect wiring
Unit not configured
Intermittent connection problem
Cap placed on inlet probe during wash down
not removed.
Kink in tubing
Leak in vacuum line
Vacuum pump failure
High counts in room
Probe placed near source of contamination
Potential sensor contamination
Contamination
Solution
Examine the system for loose or incorrect
connections
Configure the counter using the setup utility
program
Use the CRTS (communication reliable test
software) to find the problem if using the
FXB communication protocol
Remove cap from probe
Examine both sample and vacuum tubing
for bends that may restrict the air flow
Examine the vacuum line and fittings for
leaks in the system
Repair the vacuum pump
Troubleshoot the process to determine the
source of the counts
Reposition probe
1
Use a portable counter to confirm the
counts from the remote counter.
2
If the count is similar, the problem is
with the process and not the counter. If
the count is lower, use a zero count
filter to clean the internal components.
3
If the count is still high, send the
counter to a service center for repair.
Purge the counter using the zero count filter
(section 5.2.3 on page
44)
45
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