MJK Expert 1400 Hydrostatic Level

Expert™ Hydrostatic Level transmitter 1400

The MJK Expert™ 1400 Hydrostatic Level Transmitter with ceramic capacitive measuring system and built-in breather tube for direct air pressure compensation. It is designed for use in water applications where improved accuracy for both high and low measuring ranges are requested. The transmitter is ATEX and UL approved for mounting in explosion hazardous areas.

The ceramic capacitive sensor provides a stunning precision of +/- 0,1 %. The transmitter is just 22mm in diameter, and therefore often used in water borings, or on construction sites measuring the ground water levels to avoid possible damages on nearby buildings and the vast financial claims that may follow.

The transmitter is particularly popular in water borings and drinking water tanks but also used in process water when top precision is needed.

  • Ceramic diaphragm, AISI 316L body
  • Surge resistance
  • 2-wire 4 – 20 mA loop powered, 10-30VDC
  • Accuracy better than ± 0.1 % and stability 0.1 % per year
  • Programmable zero point and span with flexible measuring ranges
  • 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 – 30 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: Stainless steel (AISI 316 L), Diaphragm: 96,6 % Al2O3, Cell packing: Viton®
Supply voltage: 10 – 30 VDC (12 – 30 VDC for cable lengths above 100 m)
Output signal: 2-wire 4 – 20 mA (passive transmitter)
Cable: 2 × 0,5 mm2 (pressure) + 5 x 0,15 mm2 (data), shielded, PUR insulation
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
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,