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Bore water level sensor

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Thermo Fisher Scientific has announced that the new Druck 1830 series bore water level transmitter is now available with integral lightning surge arrestor.

Part of the latest generation of fully submersible sensors, the new 1830 has protection to the highest European standard (level 4) and protects the equipment against high power, slow transients and fast transient rising edges.

The new sensor also features water ingress protection, with a high pressure injection moulded polyurethane boot, which is thermo-plastically fused to the cable sheath to produce a single section of polyurethane, rated to 70bar (700m H2O) pressure, for continuous immersion.

Other features include:

· A single piece vent tube and the use of new 'dense' potting, giving the highest level of moisture and shock protection.

· A 'delrin' nose-cone which protects from mechanical damage (fingers & screwdrivers) and pressure shock, when dropped into water in free fall.

· Radial holes in the nose cone and pressure connection 'self-clean' the internal open face of the titanium isolation diaphragm.

The use of an all titanium body and diaphragm, enables the sensors to be used in hostile fluids, where materials such as stainless steel cannot be considered.

Outputs are 4-20mA, 2-wire current loop, with any zero based scale from 1.5 metre H2O to 600 metres H2O.

For low power availability applications, units are also available with millivolt output.

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