The Soil Instruments vibrating wire load cell comprises a set of up to six vibrating wire gauges mounted parallel to the cell axis and equally spaced in a ring in an steel alloy cylindrical housing. The method of construction results in a very robust instrument suitable for use where high performance, longevity and mechanical strength are important.

All cells are manufactured with a centre hole to accommodate rockbolts, tendons or anchor cables. For use as a solid centre cell the instrument can be supplied with top and bottom load plates.

A heavy gauge multi-core, PVC sheathed cable connects the load cell to the read-out unit via a switched terminal unit.

The switched terminal unit is required for connecting to each of the VW sensors in the load cell (the readings can be averaged by the VW read-out unit and displayed in engineering units).

Switched terminal units are available for handling multiple Load Cell installations, they can also incorporate a Junction Box to enable the cables to be extended from the switched terminal unit to a central datalogger.

Accurate, robust and very good long term stability.
Negligible temperature effects compared with oil filled load cells.
Fast response time.
Accuracy unaffected by cable length
Suitable for remote reading and data-logging.
The connecting cable is strong, screened and flexible and can be used in lengths in excess of 1000m.
Over-voltage surge arrestors fitted to each vibrating wire gauge to protect against electrical damage.
Load cell is not susceptible to partial collapse due to fluid leakage which can be experienced with hydraulic load cells.

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