MJK Expert 3400 Hydrostatic Level

Expert™ Hydrostatic Level transmitter 3400

The MJK Expert™ 3400 hydrostatic level transmitter is accurate and has long term stability. It is very robust and designed for applications in rough environments with aggressive chemicals and fluids. 

The Expert™ 3400 with ceramic capacitive measuring system and built-in breather tube for direct air pressure compensation is designed for use in waterworks, sewage treatment plants and industrial applications.

Expert 3400 is designed without sharp edges preventing particles from sticking to the house or membrane. The incredibly robust level transmitter is molded in a body of PPS which protects against acids, bases and ferric-chloride.

The analog 4-20 mA output signal can be lead for up to 300meters in the PUR insulated cable, for instance for your RTU.

Using a laptop and free software, you can easily adjust the measuring area to suit your installation perfectly.

Expert 3400 is ATEX and UL approved for installation in explosion hazardous areas.

  • Ceramic diaphragm, PPS body,
  • 2-wire 4 – 20 mA loop powered, 10-30VDC
  • Surge resistance
  • Accuracy better than ± 0.1 % and stability 0.1 % per year
  • Field re-programmable for custom ranges and zero offset calibration
  • Steel reinforced PUR cable with high tensile strength (1000kg)
  • Measuring ranges from 0 – 0,3 m to 0 – 300 m

Nominal measuring range: 0-0.3 m, 0-1 m, 0-3 m, 0-5 m, 0-10 m, 0-30 m, 0-50 m, 0-100 m, 0-300 m
Measuring principle: Ceramic capacitive, relative pressure Ceramic cap., sealed gate
Min. programmable range: 0-0.3 m, 0-0.3 m, 0-1 m, 0-3 m, 0-3 m, 0-10 m, 0-30 m, 0-50 m, 0-90 m
Max. programmable range: 0-1 m, 0-1 m, 0-3 m, 0-10 m, 0-10 m, 0-30 m, 0-50 m, 0-100 m, 0-300 m
Max. overpressure: 4 bar, 4 bar, 6 bar, 10 bar, 10 bar, 18 bar, 40 bar, 40 bar, 40 bar
Temperature range: -10 °C to 70 °C
Temp. deviation, zero point: Better than ± 0.02 % / °C
Temperature deviation, FS: Better than ± 0.01 % / °C
Linearity / Stability: Better than ± 0.2 % FS / ± 0.2 % FS
Measurement accuracy: Better than ± 0.1 % FS @ +10 to 30 °C, Better than ± 0.2 % FS @ full temperature range
Long time stability: Better than ± 0.1 % FS per year
Materials: Housing: PPS 40% glas-reinforced, Diaphragm: Ceramic 99.9% AL2O3, Cell packing: Viton®
Supply voltage: 10 – 30 V DC (12 – 30 V DC for cable lengths above 110 m)
Output signal: 2-wire 4 – 20 mA (passive transmitter) / ModBus RS485
Cable: 2 × 0,5 mm2 (pressure) + 5 x 0,15 mm2 (data), shielded, PUR insulation, 1000 kg pull strength
Cable length: 12 m, 12 m, 12 m, 12 m, 12 m, 35 m, 55 m, 110 m, 320 m
Enclosure: IP68, withstands a static pressure equal to max. overpressure.
Safety approvals: UL® Class I, II and II, Division 1 Hazardous (Classified) Locations, UL 913, ATEX: II 2G EEx ia IIC T4…T6. NB: Only applies to 3400
Test approvals: CE directive: 89/336/EEC, 2004/108/EC, 1999/EC, EN 61326-1, 61326-2-3,, EN 55011, 61000-4-2, 61000-4-3, 61000-4-4, 61000-4-5,61000-4-6, 61000-4-8, EN 61000-6-4 2007-02-19, EN 61000-6-2 2005-09-08,