Product category:
Pressure sensors
News Release from: SensorsOne | Subject: CNS rangeable low level pressure transmitters
Edited by the Engineeringtalk Editorial
Team on 15 August 2006
Pressure transmitters are on the level
Low level pressure transmitters are designed for shallow depth sensing in reservoir, rivers, streams, water treatment works, weirs, water tanks, filtration pits and open channels.
CNS rangeable low level pressure transmitters are specifically designed for shallow depth sensing in reservoir, rivers, streams, water treatment works, weirs, water tanks, filtration pits and open channels The CNS level sensor has an all stainless steel construction for freshwater use and a duplex stainless steel and Hastelloy C276 construction for protection against corrosion when used in seawater, brackish water or tidal water
This article was originally published on Engineeringtalk on 24 May 2006 at 8.00am (UK)
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The CNS sensing diaphragm is in direct contact with the water and has a large surface area which makes it very sensitive to low hydrostatic pressures.
The CNS smart electronics provides a 5:1 turndown ratio for each pressure range which can be configured by the user in-situ without any need to use a hand terminal.
For open channel flow applications a 3/2 or 5/2 law output and custom nonlinear outputs options can be configured prior to delivery.
The 4-20mA current output of the CNS level transmitter is accurate to +/-0.35% of maximum span which includes nonlinearity, hysteresis and repeatability.
The cable exit form the back-end of the sensor is completely sealed in polyurethane to provide a high integrity IP68 submersible seal to 200m water gauge and the sensor is completely potted to protect the electronics from moisture ingress damage.
The CNS shallow depth transmitter has a variety of pressure interfaces such as a depth cone, flush face diaphragm to prevent clogging and facilitate easy cleaning, 1in BSP flush diaphragm for screwing into a tank wall or 0.25in BSP female for mounting onto a water pipe.
The CNS smart submersible pressure transmitter is ideally suited to measuring very low water levels and when combined with the flexibility in pressure range, output signals and mounting arrangements the result is a highly capable level sensor for shallow depth measurements in water utility and environmental monitoring industry applications.
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