NCR-80 Four-wire 4-20 mA/HART
925-0332 Rev B
6 Set up the sensor with the display and adjustment module
37
Medium:
Every medium has a different reflective behavior. With this selection, the sensor can be perfectly
adapted to the medium and measurement reliability, particularly with media with poor reflective
properties, is considerably increased.
Application:
Depending on the type of bulk solids application, material cones and additional echoes from the
vessel wall or bottom can become further interfering factors. Through this selection, the sensor
is adapted perfectly to the application.
Vessel height/Measuring range:
The NCR-80 is a bulk solids radar sensor for high, slender vessels. It covers a measuring range
up to 120 m. This menu item lets you limit the active measuring range in which the instrument
searches for level echoes.
Information:
The min. adjustment must be carried out independently of this.
The following features form the basis of the applications:
Silo (slender and high):
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Vessel of metal: weld joints
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Process/measurement conditions:
- Filling aperture too close to the sensor
- System noise in completely empty silo increased
●
Properties, sensor:
- Stable measured values through higher averaging
- False signal suppression during setup recommended, required for automatic false signal
suppression
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Automatic false signal suppression with partly filled vessel
1
1) The instrument recognizes if a manual false signal suppression was carried out with
empty vessel and high system noise. An automatic false signal suppression is then
carried out if a product echo was detected at the beginning of the filling process.
