Fluke 983 User Manual page 35

Problem
Unable to download data in the buffer
The display shows "CAL ALARM"
No temperature/humidity reading or
an incorrect reading
Table 2. Troubleshooting (cont.)
Possible Reason and Recommended Actions
1. There is a problem with the connections from the PC to the Particle Counter.
Check those connections.
2. There may be a problem with the software. Refer to the Readme.txt file on
the software.
1. The sample exceeded the concentration limit (too many particles), which
produced a temporary alarm. No corrective measure is required other than
to stop sampling in that environment.
2. The sensor is contaminated. Refer to "Purging the Particle Counter Sensor".
3. The laser has dropped below acceptable levels. If the problem persists,
contact Fluke.
Temperature and humidity appear after the sample is in progress. Allow the unit to
acclimate to the sampling environment for greater accuracy.
Particle Counter
Troubleshooting
25