KOBOLD Instruments Inc • 1801 Parkway View Drive • 15205 Pittsburgh, PA • Tel: +1 412 788 2830 • E-mail: Please activate JavaScript visit koboldusa.com

nws-f-fuellstand.png: Vibration Switch Liquids-Cable Connection NWS-...2EF

Vibration Switch Liquids-Cable Connection NWS-...2EF

For liquids

Contact: 1 electronic switch
Connection:
G ¾, G1 male thread, ¾" NPT, 1" NPT male thread,
Tri-Clamp® DIN 32676, hygenic DIN 11851,
DIN-flange DN25, DN50, ANSI-flange 1", 2"
Material: stainless steel 1.4404
pmax: 45 bar
tmax: 130°C (150°C CIP-cleaning)
Viscosity: up to 5000 mm²/s
Certificates: ATEX

Datasheet

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nws-gb-level

698 KB
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nws-sv-niva

698 KB

Approvals

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BVS03ATEXE119

II 1G Ex ia IIC T6 Ga

10,7 MB
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IECEXBVS13.004

Ex ia IIC T6 Ga

4,2 MB

Description

The KOBOLD liquid level switch NWS is designed as a 2 and 3-wire switch and can be universally used in vessels and pipelines. The NWS operates on the tuning fork principle in air at resonance frequency. A piezoelectric crystal is used for excitation of oscillations and for monitoring the actual oscillation frequency.
When the fork is immersed in liquid, the frequency changes: this change is detected electronically and the output signal is changed. The NWS operates as a 2-wire switch in series with the load. The simple electronic switch is operated by the liquid. The NWS can also be connected to a PLC through a third terminal.

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