User Manual

Parameters
3UG4 / 3RR2 monitoring relays
360 Manual, 02/2013, NEB927043002000/RS-AA/002
Sensor sensitivity
The sensor sensitivity is the sensitivity R sens, with which the filling level monitoring relay
must respond.
The working principle of the filling level monitoring relays is based on resistance
measurement of conductive liquids (conductive measurement method). This method can be
used with all liquids and substances that have a resistivity < 200 kΩ.
Table B- 1 Resistivity of liquids
Product kΩ Product kΩ
Buttermilk 1 Natural water 5
Fruit juice 1 Waste water treatment 5
Vegetable juice 1 Starch solution 5
Milk 1 Oil 10
Soup 2,2 Condensation 18
Beer 2,2 Soap foam 18
Coffee 2,2 Jellies 45
Ink 2,2 Gelatin 45
Salt water 2,2 Sugar solution 90
Wine 2,2 Whisky 220
Distilled water 450
Scaling factor
The "scaling factor" parameter allows the user to set the number of pulses per revolution
provided by the pulse encoder. This allows the revolutions per minute to be read direct on
the display.
Possible indications on the display: Scale