ENR ENR Part number 84870204
Product replaced by the new ENR 84 870 200
Part numbers
Specifications
Operating principle
Monitoring maximum and/or minimum levels of conductive liquids (tap water, sea water, waste water, chemical solutions, coffee, etc).
The principle is based on measuring the apparent resistance of the liquid between two submerged probes. When this value is lower than the preset threshold displayed on the unit's front panel, the
output relay changes state. To prevent any occurrences of electrolysis, an AC current is passed through the probes. Areas of application include the agri-food, chemical and other industries.
Adjusting two levels : Minimum/Maximum
The output relay changes state when the level of liquid reaches the maximum electrode, with the minimum electrode submerged. It returns to its initial state when the minimum probe is no longer in
contact with the liquid.
Note
If the power break T lasts for 1 second or more, the relay reenergises instantly when in "UP" mode and is de-
energised when in "DOWN" mode.
Monitoring filling UPMonitoring emptying DOWN
Maximum power consumption
Measurement accuracy (at maximum sensitivity)
Electrode current (maximum)
Output relay (according to AC1 resistive load)
1 AgNi changeover relay 8 A AC max.
Galvanic isolation via transformer (4 kV, 8 mm creepage
distance)
Isolation of contacts and electrodes from power supply
Operating temperature range (°C)
Storage temperature range (°C)
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
10/04/2014 www.crouzet.com
