Kobold KAL-0312 EX, Руководство по эксплуатации

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KAL-EX
Seite 10 KAL-EX K05/0322
8.6 Temperature compensation
If the length of the cable connecting the sensor and the electronic analyzer is greater than 10
meters or if increased accuracy in temperature measurement is desired, we recommend that
device be compensated as described below.
Caution! Be sure to switch off the power supply

Connect the entire length of the cable to be used to terminals 6 and 8.
Instead of the sensor, connect a 100 ohm ±1% resistor (included in the delivery).

Set the temperature potentiometer (2) to 80° C (rotate to right-hand stop) Switch on the
power source and place the electronic analyzer in operation.

Briefly press the SET button (5).
The temperature LED and the flow LED will start to blink. After 10 seconds, they will go
out.

If the system is not functioning properly, the flow LED (6) will blink continuously. In this
case, press the SET button (5) once again. The device then switches back to measuring
mode. Before continuing, inspect the mechanical and electrical installation. Then follow the
“Temperature compensation” instructions once again.

If the temperature LED blinks faster, then the error could be caused because the sensor is
still connected instead of the 100 ohm resistor.

Finally, remove the 100 ohm resistor and reconnect the sensor.
9. Fault alarms
In alarm mode the current relay stops functioning.
This occurs under the following conditions:

Actual value < Setpoint value

Short circuit (at sensor)

Line break

Power failure
10. Maintenance
This device is maintenance-free. Once a month, the sensor tip should be checked for the
presence of mineral deposits (lime, etc.) and cleaned if necessary.