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Ultrasonic for open channels - NUS

The Kobold ultrasonic level meter, model NUS-4, is used for non-contact, continuous level and volume measurement in vessels or for flow measurement in open channels. Level  measurement technology based on the non-contacting ultrasonic principle is especially suited for applications where, for any reason, no physical contact can be established to the surface of the material to be measured.

Such reasons may include corrosive attack by the process medium against the measuring device material (acids), possible contamination (sewage) or particles of the process medium adhering to the measuring device (adhesive materials).The ultrasonic level metering technology is based on the principle of measuring the time required for the  ultrasound pulses to make a round trip from the sensor to the level to be measured and back.

The sensor emits an ultrasonic pulse train and receives the echoes reflected. The electronic evaluates the echo time of the pulses and determines the level. The evaluating electronics is mounted compact on the unit. For remote transmission, a norm signal output and for monitoring purposes, a relay contact is available. For programming and for local display, the units may be delivered with an optional pluggable programming unit with LCD display.

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Radar Level Transmitter - NRM

For liquids 
Measuring range: liquids up to 23 m
BSP- ,NPT- thread male
flange 3"... 6" (DN, ANSI, JIS)
dairy connection, Tri-Clamp®
Material connection: stainless steel, aluminium, PP, PTFE
pmax: 25 bar
Accuracy: ±3 mm
Power supply: 20 - 36 VDC (Ex= 20 - 30 VDC) , 2-wire
Output: 4 - 20 mA HART®
Approval: Ex ia (ATEX & IECEx)


The 2-wire non-contact microwave level transmitters type NRM provide the most advanced, new generation measurement technique of the industrial process automation field, available as NRM-4 (compact version) and NRM-7 (integrated version).

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Magnetostrictive Level Meters - NMT

Measuring length: 300 - 4000 mm
Connection: G 2, 2" NPT male thread
Material: stainless steel
pmax: PN10
tmax: 70°C
Accuracy: ±1 mm
Output: 4 - 20 mA

Description :

The Kobold level meter NMT is a very accurate fl oat-controlled sensor for continuous sensing of levels.The instrument comprises two parts:

- Magnetostrictive sensor in the measuring tube

- Four-wire transmitter in the connection box

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