Endress+Hauser Smartec CLD18, Руководство по эксплуатации

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Smartec CLD18 Commissioning
Hauser 33
8.5.3 Air set (residual coupling)
For physical reasons, the calibration line goes through zero in the case of conductive sensors
(a current flow of 0 corresponds to a conductivity of 0). When working with inductive sensors,
the residual coupling between the primary coil (transmitter coil) and secondary coil (receiver
coil) must be taken into account or compensated for. The residual coupling is not only caused
by the direct magnetic coupling of the coils but also by crosstalk in the supply cables.
As is the case with the sensors, the cell constant is then determined using a precise calibration
solution.
To perform an airset, the sensor must be dry.
Perform an airset as follows:
1. Calibration / Airset Select .
 The current value is displayed.
2. Press the Plus key.
 " Keep sensor in air "
3. Keep the dried sensor in air and press the Plus key.
 " Wait calib. " - wait for calibration to end. The new value is displayed after the
calibration.
4. Press the Plus key.
 " Save calib data? "
5. Yes Select .
 " Calib successful "
6. Press the Plus key.
 The device switches back to the measuring mode.