Chapter 3 Troubleshooting
17
Fluorophos® ALP Test System Model FLM300 Service Manual
Error message Possible cause Suggested action
Function Not Available During setup or diagnostics a function was
requested that is unavailable.
The system software does not support what was
requested.
PIC Version Error!!! During the power up sequence the version number
of the PIC processor firmware could not be read.
Turn o instrument and restart after 30 seconds. If
problem continues refer service to qualified technician.
Settings Timeout During “Daily Adjust” the adjustment took too long. Make sure you have the correct material for the
adjustment and try again. If problem continues refer
service to qualified technician
Value < 10mU/L
OR
Value < 10mU/kg
This is not generally an error message. However, if
it is inconsistent with other test readings it may
indicate a problem.
Sample may not have been added to the substrate, or
sample may not have been mixed thoroughly. Re-test
using new substrate and sample
Unstable Reading,
Repeat Test
The change in fluorescence during minutes 2 and 3
is not within acceptable limits.
The sample may not have been mixed well, or the
substrate may not have reached 38°C. Re-test the
sample.
Overranged, Repeat Test The fluorescence during the test exceeded the
instrument measuring range (>24000 FLU).
The substrate may be old or contaminated, or the
sample may contain raw milk in excess of 10%. Re-test
using new substrate and samples.
Underranged, Repeat
Te st
The fluorescence during the test had little to no
activity.
Check your material. Check your black body and C
calibrator in A/D mode.
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