Hydrostatic Level Measurement

MJK offers a full series of water level transmitters designed for immersion in open tanks, wet-wells, ground water and reservoirs. 

The water level transmitters are designed for measurement under rough conditions in all water and wastewater applications with large concentrations of sludge and suspended solids. 

Our level transmitters have a sturdy design with housing in re-enforced plastic or stainless steel. Cables are insulated with PUR, and steel reinforced to achieve very high tensile strength. Sensing membranes are made with either ceramic or stainless steel. Outputs are analog two-wire 4-20 mA, voltage or digital Modbus RTU.

The Expert Hydrostatic Level Transmitters line consist of these product types:

 

  • Expert Hydrostatic Analogue Submersible Level Transmitters
  • Expert Hydrostatic Digital Submersible Level Transmitters
  • Level Transmitters for clean water applications
  • Level Transmitters for waste water applications

Expertâ„¢ Hydrostatic Level transmitter 700

Expertâ„¢ 700

The MJK Expertâ„¢ 700 Level Transmitter has a small external diameter - 16 mm - and is made of 316L stainless steel.   The transmitter is designed for measuring levels in water wells.  

The MJK Expertâ„¢ 700 is an accurate 2-wire transmitter with a piezoresistive measuring system with direct air pressure and temperature compensation and built-in surge protection.  

Expertâ„¢ Level transmitter 700 series has following features:  

  • Application: Water Wells
  • AISI 316L Housing
  • Stainless steel (1.4404/AISI 316 L) diaphragm
  • Ø 16mm outer diameter
  • Programble zero point and span with flexible measuring ranges
  • Measuring ranges between 0 – 30 m and 0 – 100m
  • Measurement and stability accuracy better than ± 0.5 %
  • Output signal 2-wire 4 - 20 mA (700) or Modbus® RS 485 (700 Digital)
  • PE Cable
  • Ligthning surge resistance

Expertâ„¢ Hydrostatic Level transmitter 7060

Expertâ„¢ 7060

Expertâ„¢ Level transmitter 7060 series is very popular level transmitter, sturdy design made for level measuring in waste water aplications around the world.


The 7060 transmitter has piezoresistive measuring system with direct air pressure compensation through a tube in the cable.

The transmitter is suitable for measuring level in wastewater pumping stations, tanks and containers at sewage plants, water works, as well as in industrial plants.

 

Expertâ„¢ Level transmitter 7060 series has following features:  

  • Application: Wastewater and process water
  • PP Housing reinforced with iron bars
  • Stainless steel (1.4404/AISI 316 L) diaphragm
  • Ø 60 mm outer diameter
  • Programble zero point and span with flexible measuring ranges
  • Measuring ranges between 0 – 2 m up to 0 – 300m
  • Measurement and stability accuracy better than ± 0.25 %
  • Output signal 2-wire 4 - 20 mA (7060) or Modbus RS 485 (7060 Digital)
  • High pull strength (1000 kg) PUR Cable

Expertâ„¢ Hydrostatic Level transmitter 7070

Expertâ„¢ 7070

Expertâ„¢ Hydrostatic Level transmitter 7070 has small external diameter and is made completely in acid proof steel. The transmitter is designed for measuring levels in water wells and drinking water tanks.

 

 

The Expertâ„¢ Hydrostatic Level transmitter 7070 has piezoresistive measuring system with direct air pressure compensation through a tube in the cable.

 

Expertâ„¢ Level transmitter 7070 series has following features:  

  • Application: Water Wells, Water Storage and Processing
  • AISI 316L Housing
  • Stainless steel (1.4404/AISI 316 L) diaphragm
  • Ø 22 mm outer diameter
  • Programble zero point and span with flexible measuring ranges
  • Measuring ranges between 0 – 2 m up to 0 – 300m
  • Measurement and stability accuracy better than ± 0.25 %
  • Output signal 2-wire 4 - 20 mA (7070) or Modbus® RS 485 (7070 Digital) PT100 for on-line temperature measurement (7070T)
  • PUR Cable

Expertâ„¢ Hydrostatic Level transmitter 1400

Expertâ„¢ 1400

Expertâ„¢ Level transmitter 1400 series with improved accuracy for both high and low measuring ranges.

The transmitters are approved for mounting in explosion hazardous areas. It has a capacitive measuring system and built-in breather tube for direct air pressure compensation.

Expertâ„¢ Level transmitter 1400 series has following features:  

  • Application: Water Wells, Water Storage and Processing
  • AISI 316L Housing
  • Ceramic diaphragm
  • Ø 22mm outer diameter
  • Programmable zero point and span with flexible measuring ranges
  • Measuring ranges between 0 – 30 cm and 0 – 300m
  • Accuracy better than ± 0.1 % and stability 0.1 %/year 
  • 2-wire 4 - 20 mA Output signal
  • PUR Cable
  • Ligthning surge resistance

Approvals

Expertâ„¢ Level transmitters 1400 are approved for use in hazardous areas with the following approvals:

  • Atex:  Ex:ia IIC T6
  • UL: Class 1, Division 1 Group A-D

Expertâ„¢ Hydrostatic Level transmitter 3400

Expertâ„¢ 3400

Expertâ„¢ Hydrostatic Level transmitter 3400  with improved accuracy for both high and low measuring ranges.

The transmitters are approved for mounting in explosion hazard areas. It has a capacitive measuring system and built-in breather tube for direct air pressure compensation.

Expertâ„¢ Level transmitter 3400 series has following features:

  • Application: Drinking, waste and process water, chemical resistant and can be used in tanks with chemicals such as a range of acids, bases and ferric chloride.
  • PPS plastics housing
  • Ceramic diaphragm, 99,9 % pure
  • Ø 50 mm outer diameter
  • Programble zero point and span with flexible measuring ranges.
  • Measuring ranges between 0 – 30 cm and 0 – 300m.
  • Improved accuracy better than ± 0.1 % and stability 0.1 %/year 
  • 2-wire 4 - 20 mA Output signal
  • High pull strength (1000 kg) PUR Cable

Approvals

Expertâ„¢ Level transmitters 3400 are approved for use in hazardous areas with the following approvals:

  • Atex:  Ex:ia IIC T6
  • UL: Class 1, Division 1 Group A-D

Expertâ„¢ Hydrostatic Level transmitter 7050

Expertâ„¢ 7050

Pressure Transmitter 7050 has Piezo-resitive measuring principle and absolute pressure measuring system.

The Transmitter is very sturdy and suitable for level measuring at pumping stations and at sewage plants, where the cable with the traditional air compensation tube will pass through different temperature zones and moisture can cause reduction of accuracy.

Expertâ„¢ Level transmitter 7050 series has following features:  

  • Application: Wastewater and process water
  • PP Housing reinforced with 6 mm iron bars
  • Stainless steel (1.4404/AISI 316 L) diaphragm
  • Ø 60 mm outer diameter
  • Measuring range 0 – 2 bar (0-10m WC)
  • Measurement and stability accuracy better than ± 0.5 %
  • Output signal 2-wire 4 - 20 mA (absolute)
  • High pull strength (1000 kg) PUR Cable
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