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M2001-E – Display and Calibration Unit
Quality measuring instruments

M2001-E – Display and Calibration Unit

The M2001-E single-channel display and calibration unit is designed for continuous measurement of dissolved oxygen, pH, redox potential, conductivity, or turbidity. The unit communicates with the connected sensor via an RS485 bus using the FINET or Modbus RTU protocols. The communication cable is terminated with a connector featuring a high IP67 rating and is included with the measurement system. If necessary, the communication cable can be extended up to 500 m.

  • Simple operation
  • Easy calibration of the air oxygen sensor
  • Alarm, Limit, and Purge relays
  • Real-time data and statistics (minimum, maximum, last calibration)
  • Up to two active 4–20 mA current outputs
  • Easy connection to the H3 unit, including data transfer
  • Large backlit display
  • Reliable operation
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Description

To control downstream equipment, the M2001E unit is equipped with three relays with switching contacts for general use and one 4–20 mA analog output. The unit features a slot for installing a second analog output (which can also be ordered separately), e.g., for transmitting temperature data to a higher-level system.
The DE1 or DE2 sensor mount, the KR1 stainless steel calibration unit enclosure, and the DELTA AC power supply can be ordered as accessories for the M2001-E unit. If the M2001 calibration unit is mounted on a wall inside a building, it is not necessary to order the KR1 enclosure.

Applications

Continuous measurement of dissolved oxygen, pH, or redox potential in many areas of water management:
- Wastewater treatment plants
- Industrial manufacturing processes
- Monitoring water quality in streams and rivers
- Water treatment plants and pumping stations
- Fisheries

Technical specifications

Technical Specifications M2001-E - Display and Calibration Unit
Standard Connection Cable shielded polyurethane cable, 3 m long, with connector (IP67)
Serial Interface RS485: FINET protocol for sensor connection; RS232: PC connection via the MOST program (unit setup and configuration, retrieving statistics)
Number of measured parameters main (oxygen, pH, redox) and temperature
Display alphanumeric 2x16 characters, 9 mm, adjustable contrast
Keypad 3 keys, mechanical keypress feedback
Supply voltage 10–24 VDC
Current consumption max. 90 mA/24 VDC
Power supply for connected sensor via connecting cable together with RS485 signals
Current output active galvanically isolated output 4–20 mA, 16-bit resolution
Second current output active output 4–20 mA, 16-bit resolution
Operating temperature range -20 ... +50 °C
Dimensions (H x W x D) 220 x 160 x 115 mm
Material of the sensor mount and unit housing stainless steel
Protection rating unit IP54, sensor IP68

Downloads

Price List Cenik 2026 V101 Datasheet M2001 Eko

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M2001-E – Display and Calibration Unit



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