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11.
Service
11.1.
Calibration
The "Calibration" function is included in the main menu.
This is started via the main menu by pressing the "Calibration" button.
This function can be started manually by service at any time and then carries out a complete
calibration test with raw and soft water.
The process can take up to 15 minutes and results in the following results at the end of the test:
Sensor OK or S ↓ or S ↓↓
The output of S ↓ or S ↓↓ leads to an external alarm and its causes and treatments are described
in the chapter "Service alarm active".
It only makes sense to start this functional test if the hardness value of the soft water is below
the specified limit value, the soft water is free of brine and there is sufficient water pressure in
the samples. If these conditions are not met, the result will always be bad, which is not an aging
of the sensor but a malfunction of the system or the sample valves.
Note:
This function is not carried out during the first two days of operation of the sensor.
11.2.
Test 4 .. 20 mA
The main menu contains the function "Test 4..20 mA".
This is started by pressing the "Test 4..20 mA" button.
The current loop can be tested by calling up the menu item "Test 4..20mA".
The desired current iss et using the buttons
and
.
The test can be ended with the button
or
.
