Overview
System Description
The leak detection system monitors Flotronic Double Diaphragm pumps for
diaphragm failure that could cause contamination of the product being pumped
and/or the air control systems internal to the pump and/or the immediate area
surrounding the pump.
The system comprises of two sensors and a main control unit. The two sensors are
connected to the air side of the pump and constantly monitor the air chambers for
the presence of foreign material that would indicate a diaphragm failure. Upon
sensing a diaphragm failure the main unit stops the pump by activating a solenoid
valve, (customer supplied), in the pump air supply line. The fault is also indicated
on the main control unit by the flashing of a red LED.
Main Components
It is recommended that you should familiarise yourself with the system before
installation and operation. This will help ensure optimum system performance.
Sensors
The sensors are mounted on the pump, one per air chamber, to detect the
presence of foreign material other than air on the driving side of the diaphragms.
The sensors are of a capacitive type and detect changes in a self generated
capacitive field. This means that they do not rely on a conductive or transparent
pumped media and can function correctly with most substances that may be
pumped.
Another benefit of this sensor type is the ability to sense through a barrier, in this
case a protective PTFE housing that stops the sensor from directly contacting the
pumped media. To this end the system can be used to detect most aggressive
substances that are compatible with PTFE
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