Nivelco

Magnetic Coupling Level Switch

Features ㆍOperation without power supply
ㆍMicro-switch separated from process
ㆍAll wetted parts stainless steel
ㆍSide or top mounting
ㆍFixed or adjustable switch differential
ㆍSubmersible versions
ㆍVarious process connections
ㆍOperational check via optional tester
ㆍExplosion-proof models
ㆍSIL1 Safety Integrity Level
ㆍMarine approvals

Application ㆍ Liquids with min. 0.7 kg/dm3 density
ㆍ Fail-safe and control level switches in closed tanks
ㆍ Power stations, chemical, petrochemical and pharmaceutical industry
ㆍ Supplementary fail safe switch if combined with other devices
ㆍ Balance tanks on ships

Specifications ㆍ Switch rating: 250 V AC, 10 A
ㆍ Ambient temperature: -20 °C to +80 °C
ㆍ Medium temperature: up to +250 °C
ㆍ Medium pressure: max. 25 bar
ㆍ Process connection: square and standard flanges, 2'' thread
ㆍ Ingress protection: IP 65, IP 68
ㆍ Ex marking: ATEX II 1/2 G EEx dme IIC T6..T2 (TÜV)
ㆍ Certificates: SIL1 Safety Integrity Level
Marine approvals:
ㆍ Germanischer Lloyd (GL)
ㆍ Det Norske Veritas (DNV)
ㆍ Bureau Veritas (BV)

 


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Ultrasonic liquid transmitter

Features ㆍ2- or 4-wire compact transmitter
ㆍLow cost
ㆍNon-contact level measuring
ㆍNarrow 5° beam angle
ㆍTemperature compensated
ㆍExcellent signal processing via QUEST+ software
ㆍPP, PVDF housing
ㆍSecondary lightning protection
ㆍHART communication
ㆍExplosion-proof models

Application ㆍ Most liquids, explosive liquids
ㆍ Level, volume and open channel flow measurement
ㆍ Reliable measurement in challenging applications such as vapour/fume stirrer and foam with liquids
ㆍ Where IP 68 is needed

Specifications ㆍ Power supply: 2-wire: 12-36 V DC, 720mW
ㆍ 4-wire: 11.4-40 V DC, 3.6W or 11.4-28 V AC, 4 VA
ㆍTemperature: -30 °C to +80 °C
ㆍ Pressure: 0.3 .. 3 bar
ㆍ Measuring range: 0.2 - 15 m
ㆍ Output: 4-20 mA, relay, HART
ㆍ Protection: IP 68, ATEX II 1 G EEx ia IIB T6





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Non-contact microwave level transmitter

Features ㆍ25 GHz K-band, 2-wire
ㆍEasy installation due to small antennas
ㆍ23 m measuring range
ㆍ±3 mm accuracy
ㆍHART communication
ㆍPlug-in graphical display module
ㆍHigh temperature version

Application ㆍ Level measurement of liquids, slurries, emulsions and other chemicals
ㆍ Water and wastewater industry
ㆍ Pharmaceutical industry, chemical industry
ㆍ Food-industry, energy-industry
ㆍ For high precision level measurement tasks

Specifications ㆍ Measuring frequency: 25 GHz (K-band)
ㆍ Power supply: 24 V DC (nominal)
ㆍOutput: 4-20 mA, HART
ㆍ Antenna material: horn: 1.4571, enclosure (optional): PP, PTFE
ㆍ Antenna diameter: DN40 mm (1½''), DN50 mm (2''), DN80 mm (3'')
ㆍ Medium temperature: -30 °C … +100 °C, high temperature version: -30 °C … +180 °C
ㆍ Process pressure (depending on the antenna): -1 … 25 bar
ㆍ Process connection: 1½'', 2'' BSP/NPT, or DIN/ANSI flanges, TRICLAMP, DN50 sanitary
ㆍ Ingress protection: IP67




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The range of linear core movement is determined by
selecting the rotating angle of the float and lengths, L1 and
L2, to actuate the micro-switch, which controls the power
to pump or drain equipment.