Advanced Instruments 3900, Руководство пользователя

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85
“Retest Using
Low Range”
“Retest Using
High Range”
“Retest Out of
Range”
“Result = 0,
Calibration
Okay?”
Results not
repeatable (too
scattered)
“Serial Loop
Failed”
Calibration.
Check the calibration
(unless running a 0 mOsm
sample).
Operator procedures and
technique.
Check the sample probe
by running the A/D test.
1. Is serial loop-back con-
nector attached?
2. Did you wire loop-back
connector correctly?
3. Try lower baud rate.
Symptom Check
Suggested Action
(...continued)
3. Reset the stir amplitude,
as necessary, to the num-
ber recorded in the ser-
vice log.
1. Test another aliquot of
that sample at the range
indicated.
2. Change range as indicat-
ed.
3. Recalibrate or dilute and
rerun the sample as nec-
essary.
Recalibrate unless running
a 0 mOsm sample.
Replace the sample probe.
If the problem persists, see
Chapter 5 for further assis-
tance.
1. Attach connector.
2. See Chapter 5.
3. Change baud rate.
Troubleshooting Table