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Home | Products | Level | Level Transmitters | Hydrostatic (Submersible) | Nivopress N

Nivopress N – Hydrostatic Level Transmitters for Clean Water and Sewage

Nivopress NFK / NPK / NBK - General Purpose.
Nivopress NCK - Viscous Sewage/Slurry.

Nivopress N Series level probes are 2-wire 4~20mA submersible transmitters used for the hydrostatic measurement of levels in liquids. The pressure is converted into an electrical signal.

Applications include: level measurement in wells, boreholes, wastewater plant, vessels, and standing or running water.

Brand: NIVELCO
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  • Product Details
  • Technical Specs
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https://www.intech.co.nz/wp-content/uploads/2019/11/nivopress_n.mp4

The NIVOPRESS N hydrostatic borehole level transmitters are designed to measure the level of clean or contaminated liquids. The pressure sensor at the bottom of the probe measures the hydrostatic pressure (Phydr) of the liquid column above it and compares with the atmospheric pressure (Patm). The atmospheric pressure is led to the sensor through a breathing capillary which is equipped with a moisture filter that prevents the moisture reaching the electronics and decreasing the accuracy of the measurement. This enables the atmospheric pressure to be subtracted from the measured pressure to get the hydrostatic pressure which is proportional to the height of the liquid column (h).

The electronics converts the sensor’s signal into an output signal. If temperature measurement (of the liquid) is needed beside the level measurement a combined (level + temperature) transmitter should be used.

The installation and wiring of the transmitter is helped by the wide variety of accessories. A sewage adapter working on the principle of the diving bell can be snapped (NP) or can be screwed (NZ) into the place of the protecting cap to avoid the direct contact between the sensor and the measured contaminated liquid. An extra mechanical protection is built in the NZ type sewage adapters in the form of a mechanical filter. The N-500 types can be used in hazardous environments.
The NZ screw-in type transmitters are recommended for applications where there is a risk of flooding.
The NB/NG plastic housing types are designed for those applications where the aggressive medium (e.g. saline solutions or seawater) could cause galvanic corrosion of the stainless steel body.

Main Features:

  • 2- or 3-wire submersible transmitter
  • Capacitive ceramic, piezoresistive stainless steel and piezoresistive ceramic sensor
  • Plastic or stainless steel body
  • Venting tube in cable
  • Reverse polarity protection
  • Optional lightning protection
  • Linearity: ±0.25%
  • Built-in Pt100 temperature sensor
  • Explosion-proof models
TYPENivopress NFK / NPK / NBK - General Purpose:Nivopress NCK - Viscous Sewage/Slurry:
RangeProgrammableFixed
DiaphragmStainlessCeramic
HousingNFK / NPK: 173mm x ›22mm, stainless steel. NBK: 212mm x ›22mm, plastic.145mm x ›40mm, stainless steel.
ProtectionIP68.IP68.
CableNFK: FEP ›7mm. NPK: polyurethane ›7mm. NBK: polyurethane ›7mm.polyurethane ›7mm.
Accuracyon full scale, <0.5%.on full scale, <0.5%.
Operating temp-10~60øC.0~60øC.
Temp coefficient0.05% / 10øC.0.05% / 10øC.
Output4~20mA, 2 wire, loop powered. UT = 12~30Vdc. HART programmable.4~20mA, 2 wire, loop powered. UT = 12~30Vdc.
Load resistancemax. RL = UT-12V) / 0.02A.max. RL =(UT-12V) / 0.02A.

  • Nivelco Nivopress N Hydrostatic Level Transmitters User Manual 308.14 KB
  • Nivelco Nivopress N Hydrostatic Level Transmitters Brochure 3.95 MB
  • Nivopress NBK Hydrostatic Level Transmitters Technical Drawing 24.15 KB
  • Nivopress NPK Hydrostatic Level Transmitters Technical Drawing 19.12 KB
  • Nivopress NCK Hydrostatic Level Transmitters Technical Drawing 19.79 KB

Product Range

Product Range:
CodeSpecificationsPriceQuantity
NFK-41-03

0~1m H2O with 3m of FEP cable, stainless diaphragm, SS.

$850.00
NFK-42-05

0~2m H2O with 5m of FEP cable, stainless diaphragm, SS.

$870.00
NPK-43-10

0~5m H2O with 10m of poly cable, stainless diaphragm, SS.

$900.00
NPK-44-15

0~10m H2O with 15m of poly cable, stainless diaphragm, SS.

$930.00
NPK-45-25

0~20m H2O with 25m of poly cable, stainless diaphragm, SS.

$1,023.00
NPK-46-60

0~50m H2O with 60m of poly cable, stainless diaphragm, SS.

$1,280.00
NBK-43-10

0~5m H2O with 10m of poly cable, ceramic diaphragm, plastic body.

$900.00
NCK-22-05

0~2m H2O with 5m of poly cable, ceramic diaphragm, SS.

$1,100.00
NCK-24-15

0~5m H2O with 10m of poly cable, ceramic diaphragm, SS.

$1,145.00
NCK-23-10

0~10m H2O with 15m of poly cable, ceramic diaphragm, SS.

$1,120.00
NAW-107

Sewage Adaptor for NBK

$78.00
NAW-104

Sewage Adaptor for NPK

$78.00
NAA-209

Cable Mounting Wedge Clamp

$32.00
NAA-105

Cable Holding Sliding Sleeve

$185.00
NAA-102

Terminal box with filter and integral OVP

$295.00
NAA-101

Terminal box with filter without OVP

$75.00

Note: Other ranges and cable lengths are available on request. Please contact us.

All prices are in NZ$, and GST exclusive and are subject to change without notice.

Intech Instruments Ltd are the New Zealand distributor for Nivelco products. Please contact the Nivelco distributor in your country if you require sales or service support for Nivelco products.

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