Ofs Softcontrol Smart, Instruction Manual

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11.2. Operating conditions of the sensor
Sensor usage conditions:
The quality of the sensor is influenced by the water quality, in particular the precipitation of
iron, high chlorine or brine concentrations and growing bacterial cultures and must be re-
placed at the latest when the sensor alarm is signaled.
Required water conditions:
- natural raw water with a hardness value of 0.18 mmol/l to 10.8 mmol/l
- water temperature: 5..30 ° C
- pH range: 5 ... 9 pH
- chlorine content: <500 µg / l
- germ content: <5,000 CFU / ml
The water must be free from acids, alkalis, salt solutions (brine), tensides, fats, oils,
solvents and heavy metals.
11.3. Sensor connection/sensor replacement
1. Disconnect the plug-in power supply unit from the mains or interrupt the power supp-
ly
2. Disconnect the sensor cable from the used sensor (when changing the sensor)
3. Press down the pressure ring on the T-piece of the flow measuring chamber in which
the sensor is located and at the same time pull the used sensor straight out of the flow
measuring chamber. (when changing sensors)
4. Take the new sensor out of the folding box and pull it straight out of the protective tu-
be.
Do not touch or damage the sensor tip!
5. Press the new sensor firmly into the T-piece of the flow chamber. Sensor included
insert straight to prevent contact with the pipe wall.
By pulling on the sensor, the firm and pressure-proof seat in the T-piece can be
checked.
6. Plug the sensor cable onto the sensor (observe polarity reversal protection on the plug)
The sensor cable must click into place audibly and tangibly.
7. Reconnect the plug-in power supply to the mains or switch on the power supply. The
device checks the sensor plug connection when it is restarted and displays an alarm if
the sensor is not recognized. In this case, the device must be switched off again and
the plug connection to the sensor checked for contact security.
8. The sensor change is complete when the device detects the new sensor and resumes
measuring operation.