Human HumaStar 300, Service Manual

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oPtIonal moDules
371
MS1621.01 5 Pump joint connector in steel 1
EM0045.03 7 Pump motor 1
MS1619.01 2 Tubing holder 1
EB0161.05 8 Waste pump drive board 1
EB0161.06 8 Cal. A pump drive board 1
21.3.13 tRouble SHooting guide
In some case it may be difficult to calibrate the ISE Module, especially if it is not
used daily. However, it is easy to check and redo the calibration from the Main-
tenance F8 program. It is possible to clean and wash several times the electrodes
and proceed to calibrate without a problem.
Go to Maintenance F8 program – Sample System and proceed as follows:
1. Activate – iSe Clean and click StaRt . Repeat this operation at least twice.
Make sure that the cup with Clean S solution is present on the Sample Tray
in its position.
2. Activate – iSe purge and click StaRt . Repeat this operation at least three
times.
3. Activate – iSe Calibration and click StaRt . Repeat the operation twice. Make
sure the cup with fresh “ Cal b ” solution is present in its position on the Sam-
ple Tray.
4. The results obtained should be within the values shown below:
- Cal Na - from 50 a 63 mv/ d
- Cal K - from 50 a 63 mv/d
- Cal Cl - from 40 a 53 mv/d
this operation will be necessary, especially if the iSe Module has not been used
for a long time or when the electrodes are dirty or old.
The test above indicates that the ISE Module is working correctly. If the above
results are not obtained, the module might need special maintenance or service.
Two possible situations can occur:
1. One or more results during calibration are not within the specified range.
- It is possible that the electrode is old and exhausted. Next to the result that
is out of range will be added the ( error iSe… ).
2. None of the results are within the specified range
- The problem can also be the Reference electrode; in that case a massage is
displayed. (Check the solution inside the Reference electrode; there is a little
marble inside that controls the salinity of the solution. If the marble is on