Weighing module WM-3

Designed for integration in a control cabinet on top hat rail

The weighing module WM-3 can be comfortably programmed using a PC tool. Data can be output to SPS, PLS, or ERP systems easily using the ports. The large number of ports ensures comprehensive system integration.

Area of Use

  • For weight recording, data output and control in logistics, in warehouse and process technology or for fill level checks


  • Conception for the control cabinet
  • System integration with high process security
  • Programming via PC tool
  • Multiple port options

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plastic, polyamide PA 6.6, flammability grade: V0 (UL94), color: light grey


Dimensions (mm):

  • Basic module: 45 x 99 x 114.5
  • Extra module: 22.5 x 99 x 114.5
  • Basic module + extra HMS module + extra PIO module 8/8: 90 x 99 x 114.5


Protection type

IP 20, according to DIN 40050 EN 60529



Snap-on mounting for mounting rail TS 35, DIN EN 50022 (top-hat rail)


Connectible load receptors / load cells

  • One load receptor or one load cell group
  • (analog load cells) smallest impedance 56 Ω , 4/6-ladder technology, measurement provision: 2.5 ms (400 Hz), feeding voltage: 5 V or 10 V


Main module ports

  • RS 422 connectable using clamps (bus-capable)
  • 4 static inputs and outputs, galvanically isolated


Extra module ports

  • RS 232 connectable using clamps (bus-capable)
  • Ethernet 10/100 MBit (RJ 45 socket), (TCP/P)
  • Profibus DP 12 MBit (9 pol. Sub-D socket), (SWD protocol)
  • Profibus DP (WM scale) via DPV 0, cyclical service
  • Analog output 0/4-20 mA or 0-10 V
  • 8 static inputs and outputs, galvanically isolated
  • (12 stat. inputs/outputs total)


Additional Functions

  • Event-driven transmission of SMS data to handy or landline
  • Connection to telemodem via RS 232
  • Connection of a large numeric display


Adjustment methods

  • Two-point quick matching, five-point linearity matching
  • Voltage adjustment without test weights
  • Preload compensation, range adjustment



Stable load values via QSF filter even with unstable conditions


Programming tool on CD included in delivery:

Programming of scale data, performing adjustments, configuring of serial and network interfaces, data output and static input/output signals, 10 additional character sets for accompanying texts and substitutes such as net, gross, tare weight, data backup, etc. in 5 different languages: Germany, English, French, Italian, and Spanish


Auxiliary power

24 V DC, external power supply or on-site


Power consumption

200 mA to 500 mA depending on the equipment


Ambient temperature

- 10°C to + 40°C


EC type approval class III

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