Specifications E 097
FUNCTION AND USE
The level regulator works on the
principle of the conductivity and it is
suitable for the control of the maximum
and minimum levels of conductor
liquids (especially water). It is not
suitable for diesel oil, petrol and its byproducts.
Features E 097
TECHNICAL FEATURES AND
REGULATIONS
SENS
Regulation by screwdriver of the
sensitivity from 4kΩ to 33kΩ approx.
For low conductive liquids, turn to
clockwise.
VISUALIZATIONS
ON GREEN LED supply on
RED LED it lights on when
the relay is ON
MODE OF OPERATION
The device works with three probes
which are:
GROUND PROBE (M)
It must be always submerged in the
liquid (the reservoir can be used as
ground probe when it is made of
conductive material).
LONG PROBE (L)
It controls the minimum level.
SHORT PROBE (C)
It controls the maximum level
The probes are supplied with
alternated current, so that the
electrolysis does not take place.
When the liquid reaches the ground
and long probe (minimum level) the
internal relay is OFF; when the liquid
reaches also the short probe, the relay
goes ON and it will return OFF when
the liquid returns below the long probe
(fig.3).
E 193 (fig.2) shows one of the most
common probe used for this device.
