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13.1.7 Cleaning Procedure – Alternative Solvent Test
Clean the sensor using one of the following two methods:
Rinse the sensor tip thoroughly in odourless kerosene, as described at 13.1.5.
Or
Use the deep cleaning method described at 13.1.6.
Test a clean oil sample, repeat the cleaning method used above and then re-test a
clean oil sample, the readings from both tests should be the same (or very similar), this
proves that using one of the failsafe cleaning methods is working.
Clean the sensor using the new cleaner and re-test a clean oil sample and if the results
are the same as for the failsafe cleaning method then the new cleaner works, if not try
a different cleaner.