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Borehole Electrode E4 and E5

Borehole electrodes used to control pumps etc, between or at specific levels.

An earth return electrode is sometimes strapped to the rising pump main.

Manufactured from UPVC and S.S. Type 316.

E4 is unshrouded and usually used inside plastic pipes

E5 is shrouded to prevent spurious operation by water in-falls.

Special electrode suspension cable which is stainless steel stranded with an outer polyurethane sheath is available.

Conductor :- 7 x 7/0. 1mm S.S. Polyurethane Insulated.

Diameter :- Approximately 5mm. Breaking Load approx 75kgs.

The S.S. Cable is used in preference to copper to reduce the risk of losing the borehole electrode due to galvanic corrosion. It is certified to BS 6920 Pti. 1990.

For UKEX, ATEX and IECEx certified (hazardous area) models (using P8/IS level controller) add suffix /IS.