Diaphragm Rupture Alarm (Available On Request) - Bertolini GIARDINAGGIO Serie Manual De Uso Y Mantenimiento

3.11 Diaphragm rupture alarm (available on request)

Idromeccanica Bertolini provides an extremely useful optional system that safeguards the
pump. This system is designed to detect the presence of water in the oil filler.
Water in the oil filler denotes that one or more diaphragms failed, thus an operating fault.
The failure of one or more of the diaphragms allows water to enter into the heart of the
pump and to mix with the oil. Unless the pump is immediately stopped, this will lead to
irreparable internal damage.
That is why the diaphragm rupture alarm is highly recommended. It warns the operator in
the cab of any ruptured diaphragms by means of visual and acoustic signals.
This system mainly consists of three parts, plus the connection cables.

Perforated oil tank plug

Oil sensor

Block with electric circuit
Oil sensor
Perforated plug
Oil filler
As visible in the figure, the system simply replaces the previous plug of the oil filler with the
new one that includes the sensor.
The main functions of the diaphragm rupture alarm are:

To indicate the presence of water in the oil filler in real time, so as to avoid
irreparable damage.

To indicate when the oil in the filler has dropped to the minimum level, thus
signalling possible leaks or faults.
In both cases, the operator must stop and check the real status by means of the relative
steps (see TROUBLESHOOTING chart).
The pump would be irreparably damaged if work were to continue with the system in the
alarm status.
Block with circuit
RELAY
Black
Brown
Blue
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