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Mounting

SONO-VARIO Standard: 108 x 45mm (Diameter x Length)

SONO-VARIO PTFE: 108 x 65mm (Diameter x Length)

The mounting flange can be screwed on to the rear side of any container, hopper or silo.

Measurement range moisture

The sensor measures from 0% up to the point of material saturation. Measurement ranges up to 90% moisture are possible with a material specific calibration.

Measurement range conductivity

The sensor, as a material-specific characteristic value, delivers the radar-basedconductance (RbC – Radar-based-Conductance) in a range of 0…12dS/m. Theconductivity range is reduced in measurement ranges >50%.

Measurement range temperature

Measurement Range: 0°C ...100°C

The temperature is measured at the ceramic disc inside the sensor casing and is issued at the analogue output 2. The material temperature can be measured with an external calibration and compensation of the sensor intrinsic-heating.

Measurement data-preprocessing

MEASUREMENT MODE CA: (Cyclic-Average) For relative short measuring processes with continual average value, filtering and an accuarcy of up to 0.1%.

MEASUREMENT MODE CF: (Cyclic-Float-Average) For very slow measuring processes with floating average value, filtering and an accuarcy of up to 0.1%.

MEASUREMENT MODE CS: (Cyclic-Successive) For very short measuring processes without floating average with internal up to 100 measurements per second and a cycle time of 200 milliseconds at the analogue output.

Power supply

+7V to +30V DC, 1,5 W max.

Ambient conditions

0 - 70°C; A higher temperature range is available upon request!

Signal output

2 x Analogue Outputs 0(4)…20mA

Output 1: Moisture in % (variably adjustable)

Output 2: Conductivity (RbC) or optionally the temperature.

In addition, there is the option to split the analogue output 2 into two ranges: into4..11mA for the temperature and 12..20mA for the conductivity. The analogue output 2 hereby changes over into an adjustable one-second cycle between these two (current) measurement windows.

The two analogue outputs can be variably aligned with the SONO-CONFIG software. For a 0-10V DC voltage output, a 500R resistor can be installed.

Calibration

The sensor is provided with a universal calibration. A maximum of 15 different calibrations can be stored. For special materials, variable calibrations with polynomials up to the 5th order are possible and can be downloaded into the sensor with the SONO-CONFIG software. A zero point correction can be performed easily with the SONO-CONFIG software.

Communication

A RS485 interface enables network operation of the sensor, whereby a databus protocol for the connection of several SONO sensors to the RS485 is implemented by default. The connection of the sensor to industrial buses such as Profibus, Ethernet, etc. is possible via optional external modules (available upon request).

Connector plug

The sensor is equipped with a robust 10-pole MIL flange connector. Ready made connection cables with MIL connectors are available in the lengths 4m, 10m, or 25 m.

Measurement field expansion

Approximately 50 - 80 mm, depending on material and moisture.