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Pressure probe DS(T) 22
  • Capacitive, ceramic, relative-pressure sensor for precise water level measurement in ground and surface water
  • Robust and slim design (22 mm diameter) made of stainless steel 1.4404 (standard), 1.4539 (optional)
  • High measuring accuracy (0.05% FS) and long-term stability (0.1%/year)
  • Wide availability of measuring ranges (0-2 /1 /4 /5 /20 /40 /100 /200/250 /300 m)
  • digital (RS485: SDI-12, Modbus, SHWP) or analog output (4-20mA)
  • Optional: Integrated temperature sensor (type DST 22)

Robust, accurate and long-term stability:
The DS (T) 22 fulfills the the requirements of a modern pressure sensor. The pressure membrane is easy to clean and highly resistant. The capacitive measuring principle ensures a high accuracy (0.05%) and long-term stability (0.1% / year)

The DS (T) 22 can be connected to all standard data loggers and controllers (PLCs). Either analog (4-20 mA with extended ESD protection according to IEC 61000-4 part 5, 0-1 V) or digital output signals (SHWP, MODBUS, SDI-12) can be ordered.

For special applications, e.g. in coastal areas, brackish water or landfills, the DS (T) 22 is also available in high-grade stainless steel 1.4539 form.

Last but not least:
In addition to the measurement of the water level, upon request, water temperature can also be recorded with a high degree of accuracy: 0.1° C.

Measurement Principle Capacitive with ceramic measuring cell
Measuring Range 0-2/0-4/0-5/0-10/0-20/0-30/0-40/0-50/0-70/0-100/0-200/0-250/0-300m water column
Measuring Accuracy

Digital: ± 0.05% FS

Analog: ± 0.1% FS

Housing Material V4A standard 1.4404 stainless steel ,or high grade 1.4539 stainless steel (optional)
Dimensions Ø22mm x 182mm
Protection Class IP 68

Digital: RS485: SHWP, Modbus, SDI-12

Analog: 0-1V, 4-20mA with extended ESD protection according to IEC 61000-4 part 5

Cable Reinforced measuring cable with a pressure compensation line
Power Supply 7-30VDC


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