Multiple point liquid level measurement

The liquid level measurement accuracy required in a tank or chamber reflects either the value of the liquid, the value of the equipment or the protection needed for the process involved

In a tank or chamber when it is necessary to be kept informed of the liquid level the measurement accuracy required will reflect the value of the medium (water vs.

liquid gold), the value of the equipment or the protection needed for the process involved.

One cost-effective solution is to have multiple point sensing, achieved by mounting a string of single sensors: at these points, indication of the fluid level is recorded.

The arrangement of these sensors can be either independent, mounted at the side of the tank, or via a single stem within the chamber with top or bottom entry and having float switch stations at each level.

Gentech have developed a range of sensors within the EVS series, that are mounted typically at the top of the tank, with up to 4 switching points, with 2 or 4 floats on a single stem.

With a combination of floats and switches over a length of up to 1 metre to give high and low level in a zone or 4 independent switch points, as the most cost effective solution.

In addition to integral wiring of 2 wires per switch or a matrix of wiring and switching outputs, it is possible to achieve cost savings within the control circuit (and wiring harness).

Also available is an option to incorporate a resistor network for diagnostics routines or "open circuit" wiring integrity checks.

The EVS Series is available constructed in the following materials Nylon 6.6, PVC, Stainless Steel, or Brass stem with Buna float.

This range of materials offer chemical resistance to a large number of fluids, and many applications have been satisfied including; water, deionised water, hydrocarbons, and water/glycol mixture.

Mounting options available for internal or external tank fitting, via BSP or NPT mounting bush or SAE flange.

The electrical connections can be flying lead or with a specified connector to enable quick installation and/or maintenance within the tank to be carried out.

Back to top