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Positive Displacement meter RTKD-M and RTKD-M-CC

The RTKD positive displacement meter records the flow rate according to the volumetric measuring principle.

The RTKD positive displacement meter records the flow rate according to the volumetric measuring principle. It offers a very high measuring range, excellent measuring stability and therefore guarantees extremely precise consumption recording.

The RTKD-M features a very low starting flow and is permitted for all installation positions. The meter is equipped with an 8-digit dry-dial meter register and a modular disc. This enables electronic, non-reactive scanning and is the basis for remote
reading of meter data via radio with LoRaWAN® or wM-Bus (according to OMS). A combined M-Bus/pulse module is also possible.

Product images

Positive Displacement Meter RTKD
Positive Displacement Meter RTKDD-counter with magnet pointerD-counter with modulator discPositive displacement meter RTKD copper can (IP68)Positive Displacement Meter RTKD-M with EDC communication module


Positive Displacement meter RTKD-M and RTKD-M-CC


  • Rotary piston dry-dial meter for any installation position (except overhead)
  • Highest precision and reliability even in case of low flow rates
  • Register cap made of UV-resistant polymer plastic
  • Available with glass/copper register (IP68)
  • Optional RTKD-N with 7-digit register 10 l/pulse
  • Optional RTKD-N with 8-digit register 1 l/pulse
  • Register rotatable 355°
  • Operating pressure MAP 16
  • Approved in accordance with MID


  • For the consumption measurement of cold and clean drinking water or service water up to 50°C

AMR options

  • As standard with communication interface for EDC modules (Electronic Data Capture):
    • EDC LPWAN radio module (868 MHz) for LoRaWAN®
    • EDC wireless M-Bus radio module according to OMS standard (868 MHz), EN 13757-4
    • EDC- combined M-Bus and pulse module

Product options

Nominal Diameter (inch)
  • 1 1/4"
  • 1"
  • 1/2 "
  • 3/4 "
Length without connectors
  • 105 mm
  • 110 mm
  • 115 mm
  • 165 mm
  • 170 mm
  • 190 mm
  • 260 mm
Additional Options
  • Anti-Magnet-Protection
  • Copper Can (IP 68)
  • Modulator Disc for inductive sensors
  • Nano Coating (Antifog)
  • Wiper for lens (Antifog)
Housing Material
  • Brass
  • Cold water up to 50° C
Specified Units on Display
  • Cubik Meters (m³)
Nominal Diameter DN (mm)
  • DN 15
  • DN 20
  • DN 25
  • DN 32
  • Dry Dial
AMR Technologies
  • Electronic Pulser
  • M-Bus
  • Radio via LoRaWAN®
  • Radio via LoRaWAN®
  • Radio via wireless M-Bus
  • Radio via wireless M-Bus (OMS)
  • Reed Pulser
Measuring Principle
  • Positive Displacement Meters
Nominal Flow Q3 (≈ Qn)
  • Q3=1,6 (≈ Qn 1)
  • Q3=10 (≈ Qn 6)
  • Q3=2,5 (≈ Qn 1,5)
  • Q3=4 (≈ Qn 2,5)
  • Q3=6 (≈ Qn 3,5)
Metrological Class horizontal (max.)
  • R 250
  • R 400


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