AT A

These water level control relays are normally-sensitive controllers that maintain liquids within the set limits between a maximum and minimum level and provide protection for submerged pumps against dry running. The sensitivity is fixed.

The use of these types of electrical probes gives an extraordinary operational safety because these devices are not very sensitive to the conventional humidity conditions of the wells and tanks.

This model of regulasonde exists in 2 versions:
» (1) AT 10A level probe
» (2) AT 20A level probe
The selection among these devices will be based on your needs in terms of fixing and choice of power supply.

How To Use
» The control relays operate with three probes and thus allow two levels to be controlled. It is important to know that the "common" probe should always be placed lower than the low level probe.
» You should also know that when working in a tank or metal tank, it is possible to use only two probes to control the high and low levels and to use the cable of the common probe by "connecting" it to the tank or metal tank. However, this case is only possible if the metal of the tank or tank is in direct contact with the liquid.
» The probes are connected to the control box by an electric cable to a conductor which can be very thin, but for reasons of mechanical resistance, it is advisable to use a 1.5 mm² cable with neoprene outer sheath.