Endress+Hauser Solitrend MMP40, Operating Instructions Manual

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Technical data Solitrend MMP40
34 Hauser
Measured value resolution Measuring field propagation
≥ 25 mm (0.98 in) depending on the material and moisture
Material moisture
Measuring range up to 100 % vol.
Conductivity
• The device delivers a characteristic value depending on the mineral concentration
• The conductivity range is reduced in moisture measurement ranges >50 %
• The conductivity value determined is uncalibrated and is primarily used to characterize
the material being measured
Temperature
Measuring range: 0 to 100 °C (32 to 212 °F)
The temperature is measured 3 mm below the sensor surface in the housing and can be
output at analog output 2. As the electronics use approx. 3 W of power, the housing heats
up slightly. Therefore the precise measurement of the material temperature is only
possible to a certain degree. The material temperature can be determined following an
external calibration and compensation of the sensor's internal heating.
Maximum measured error
The measured error depends on the operating mode and on the flow of material over the
measurement surface. The longer the averaging time and the more stable the material
density over the measurement surface, the lower the measured error.
Measured errors of up to maximum ±0.1 % are possible.
Heterogeneous materials such as fresh concrete or bulk solids with varying grain size
require a continuous flow of material over the surface of the sensor.
13.4 Environment
Ambient temperature
range
At the housing: –40 to +70 °C (–40 to +158 °F)
Storage temperature –40 to +70 °C (–40 to +158 °F)
Operating altitude Up to 2 000 m (6 600 ft) above sea level
Degree of protection IP67
13.5 Process
Process temperature range 0 to 70 °C (32 to 158 °F)
Moisture measurement below 0 °C (32 °F) is not possible.
The water content of ice (frozen water) cannot be determined.