- Check that the steam or water washing parts are connected.
- Go to Main > SENSOR STATUS and press WASH. If soft key WASH does not appear, no internal relay is configured for this purpose.
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Check the nD reading. For a successful wash it must drop below 1.34 during
steam wash and drop to approximately 1.33 during water wash.
CAUTION Before testing prism wash, check that there is liquid in the pipe in front of the refractometer sensor.