The SEBA-Electric Contact Meter is a portable, re-liable
instrument fur measuring the water level and total
depth in boreholes, wells, reservoirs etc.
For the measurement the bob is lowered to the water level.
When touching the level, a sensor effects the illumination
of a signal lamp.
On request, an additional acoustic signal will
be released by a buzzer.
The depth is shown on the cable in metres and centimetres.
If the measurement of water level and total depth
is desired, an additional ground sensor (see accessories)
is adaptable. When the sensor is touching the bottom,
the signal lamp is switched off.
In case of very small diameter tubes, instrumentes with
a probe of 10 mm dia. (not suitable fur groundsensor
and sensor - cap) are available.
Pronciple of function
When the proble is touching the water-level there is a
conductive connection between the tip of the probeund
the sensor-body. Thereby a circuit of the lamp and the
buzzer will be closed.
