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For high-accurate flow measurement by means of ultrasonic cross correlation method
The Mini sensor family provides the best possible sensors to detect lowest flow levels e.g. for infiltration measurement (extraneous water) or indirect discharge measurement.
The sensors use the proven ultrasonic cross correlation method patented by NIVUS. This method allows to detect and to indicate flow profiles starting at flow levels as low as a few centimeters.
Due to their shape the sensors are particularly suitable for small geometries and help to avoid backwater effects, the risk of build-up and clogging.
|Level Sensor, Type DSM|
|Measurement principle||ultrasonic - runtime|
|Measurement frequency||120 / 200 kHz|
|Ex-Approval||II 2 G Ex ib IIB T4 Gb|
|Operating temperature||-20 °C up to +80 °C|
-40 °C up to +80 °C when used in Ex Zone 1
|Storage temperature||-30°C to +70 °C|
|Operating pressure||max. 1 bar|
|Cable lengths||7/15 m to connect to electronic box, not extendable|
|Level measurement range||0 to 200 cm|
|Dead zone (starting at mounting plate)||4 cm|
|Measurement uncertainty||< +/- 0,5% of measurement area bzw. +/- 5 mm of value (larger value counts)|
|Zero point drift||absolute zero point stable|
|Medium-contacting materials||Polyurethane, Stainless Steel 1.4571, PPO GF30, PA|
Specifications subject to change.
Technical instructions for correlation sensors and external electronic box
Installation instruction for save installation
Externe Elektronikbox EBM
"Ex" externe Elektronikbox EBM