6.12
Resistance checks on the conductivity cell
6.13
Error messages
•
NULL ERR
- Null error. Reading too high when trying to null. Possible causes are wet or
dirty cell or faulty cable.
•
"C NULL ERR
- Temperature null error. Over range reading from probe. Possible causes
are incorrect link setting, incorrect probe type selected and faulty probe wire.
•
"C OFSt ERR
- Temperature offset error. The offset required to null the temperature probe
was too great. Check probe connections and link settings.
•
- - - -
on temperature reading - This indicates either a faulty temperature sensor or that
a temperature sensor type has been selected at the
"C tYPE
function and none is fitted.
•
"C SPAN Err
- Temperature calibration span error.
The temperature for calibration
was outside the range allowed i.e. outside the -10
o
C to 200
o
C range. Check that correct
temperature probe is selected and that correct links are selected.
•
"C GAIN ERR
- Temperature gain error. The temperature gain was more than 10% away
from expected gain. Check probe selection and connection is correct, check for faulty probe.
•
NOACCS
- No access to functions. This message indicates that the attempt to enter
FUNC
mode has failed due to entry being blocked by the
ACCS
function being set to
NONE
. The
only way to gain access to functions in this case is via
CAL
mode.
•
CAL1 ERR
- Calibration point 1 error. The conductivity or resistivity input is too high,
check for correct cell constant selection, check cell for short circuit.
•
CAL1 SPAN ERR
- Calibration point 1 span error. The
CAL1
conductivity/resistivity must
be at least 5% away of the range of the cell from the null value. Try calibration again with
a higher conductivity or lower resistivity solution, ensure than null calibration was correctly
carried out.
•
CAL GAIN ERR
- Calibration gain error. The gain value after calibration was more than
10 times higher or lower than expected. Possible causes are incorrect calibration procedure,
incorrect cell constant selection or faulty cell.
•
CAL2 ERR
- Calibration point 2 error. See
CAL1 ERR
.
•
CAL2 SPAN ERR
- Calibration point 2 span error. The second calibration point must be at
least 5 times greater than the
CAL1
point and at least 500uS/cm or 10x less for resistivity.
Increase the conductivity/resistivity of the solution to at least 500uS/cm or decrease the
resistivity by at least 10x and try again or recalibrate
CAL1
at a lower value.
PM4COMAN-2.2-1
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