Advanced Instruments 4D3 - Page 57

The Advanced
®
3D3/4D3 Service Manual
57
18. “No Plateau Detected,
Please Repeat”
“No Plateau, Repeat
Test”
19. “Overrange, Use High
Range”
“Result >2000, Use
High Range”
“Result >2500, Use
High Range”
(3D3 only)
20. “RAM Failure”
“EPROM Failure”
21. “Recalibration
Needed”
22. “Reset Probe
Configuration”
23. “Result = 0, Bad
Calibration?”
“Result = 0,
Calibration Okay?”
(Hitachi processor only)
24. “Result >4000, Out of
Range” (3D3 only)
25. “Sample Did Not
Freeze, Please Repeat”
“Sample Did Not
Freeze, Repeat Test”
The sample did not reach a valid
plateau.
The sample tested in the low range set-
ting was over the low range limit.
The main board has failed.
The calibration data has been lost from-
memory. This is caused by:
a. battery back-up failure,
b. installation of a new processor
board,
c. corruption of system memory, or
d. new software/firmware.
The probe bin data has been lost from
memory. This is caused by:
a. battery back-up failure,
b. installation of a new processor
board,
c. corruption of system memory, or
d. new software/firmware.
A. The sample tested was de-ionized
H
2O (this is not an error).
B. The instrument was not recalibrated
after the sample probe was replaced.
C. The sample/block probe bin settings
are incorrect.
The sample tested was beyond the range
of the instrument.
The sample did not freeze (after
“buzzing”).
1. Make sure the sample is not too viscous.
2. Check the sample probe.
3. Make sure there is heat transfer fluid in
the cooling well.
Retest the sample in the high range setting.
Replace the processor board.
1. Recalibrate the instrument.
2. If error message persists after successful
calibration, replace the processor board.
1. Reset sample and block probe bin num-
bers.
2. If problem persists, replace processor
board.
1. Recalibrate the instrument.
2. Check the sample/block probe bin set-
tings.
Dilute the sample and retest.
1. Make sure the sample tube is not empty,
and make sure the sample is not too vis-
cous.
2. Check the freeze amplitude.
3. Make sure the instrument is in the proper
range (3D3 ony).
Symptom Explanation Suggested Action