Grundfos DME 2 Product Manual page 44

Accessories
Diaphragm leakage sensor (DME 60 to 940)
Optoelectronic leakage sensor to be inserted in the
drain hole behind the diaphragm for sensing diaphragm
breakage or leakage.
The sensor unit consists of:
• Transmitter receiver
• Holder for fitting sensor in the backplate
• M12 plug and wire to transmit signal to pump.
When the liquid gets into contact with the sensor, the
light refraction changes, causing the sensor to emit a
signal.
The signal emitted from the sensor triggers the pump
to stop dosing and give pump output alarm.
Pump type Size
DME 60-940 (l/h) M12
44
Type Cable length [m] Product number
Leakage sensor
0.5 m
M12
96534443
Diaphragm leakage sensor