Cable electrode for use in potentially explosive atmospheres

EL/Z6V2/KE/40/2/PP/ED/1/Ex-1G
II 2 G EEx ia IIB T6

• with integrated Z6V2 cable break monitoring unit

• with blue PVC cable

For use in intrinsically safe circuits in potentially explosive atmospheres in categories 
Zone 1 or 2.

EC type examination certificate: INERIS 03ATEX0152


For signalling the presence of an electrically conductive liquid caused, for example by burst 
pipes.

Cable electrodes can, for example, be used on normally dry floors or false ceilings or in 
normally dry pipeline and cable ducts.

Cable electrodes can also be used alongside pipes or in double-pipe systems.

If the two electrode cables of a cable electrode come into contact with an electrically 
conductive liquid (e.g. water, acid etc.), an electrical contact is made and an alarm signal 
given.

Sensor cables: 2 cables made of stainless steel rope 316 or 316 Ti, each 3 mm in dia.,
each covered by a halogen-free protective polyester sheath; length: 2 metres each, longer
on request

Supplied mounting accessories: 4 sensor cable spacers made of PP per metre of sensor cable

The cable electrode is fitted with two separate electrodes in the form of two sensor cables: 
1 control electrode and 1 earth electrode. As soon as a trace of a conductive liquid creates a 
conductive path between the two sensor cables, a control current flows from the 
corresponding electrode relay. The latter is then energised and a contact made.

Each of the two sensor cables consists of a stainless steel rope core and a protective sheath 
made of polyester. This protective sheath is designed to prevent contact of the stainless steel 
ropes with one another or with an electrically conductive surface (e.g. steel tube, steel pipe 
etc.) and thus to avoid false alarms, whilst allowing leakage liquid to penetrate through to the 
stainless steel ropes.

The two sensor cables of the cable electrode must be mounted parallel to one another at a 
distance of approx. 2 cm using the sensor cable spacers, as a greater or lesser spacing 
affects the response level of the system in the event of leakage.

The cable electrode should be connected to electrode relay 
Leckstar 101/Ex  I (M1) / II (1) GD [EEx ia] I / IIC.

Max. length of sensor cables when laid in a relatively straight line: 100 m.
If the sensor cables are wound round a pipe or tank, the possible lengths may be 
considerably shorter depending on the type and method of laying.

Max. cable length between electrode relay and electrode(s):
see installation, operating and maintenance instructions

Indication for the mounting of the cable electrode:

The two sensor cables of the cable electrode must be mounted parallel to one another at a 
distance of approx. 2 cm using the sensor cable spacers, as a greater or lesser spacing 
affects the response level of the system in the event of leakage.