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CME

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CME (Horizontal Multistage Built‐in in Frequency Converter)

Suitable for

  • Drip micro spray
  • Frost protection
  • Pivot pressure boosting
  • Irrigation surface water and transfer
  • Commercial air conditioning
  • Commercial water pressure boosting
  • Domestic water pressure boosting
  • District heating
  • Irrigation
  • Desalination
  • Industrial heating
  • Industrial cleaning process
  • Industrial water supply & transfer
  • Water distribution

CME is a reliable, quite and compact horizontal end-suction pump with integrated frequency converter and intelligent features. The modular pump design makes it easy to make customised solutions

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CME (Horizontal Multistage Built‐in in Frequency Converter)

Compact, reliable, horizontal, multistage, end-suction centrifugal pump with axial suction port and radial discharge port. The shaft, impellers and chambers are made of stainless steel. The inlet and discharge parts are made of cast iron. The mechanical shaft seal is a special designed, unbalanced O-ring seal. Pipework connection is via internal Whitworth pipe threads, Rp (ISO 7/1). The pump is fitted with a 3-phase, fan-cooled, permanent-magnet, synchronous motor. The motor efficiency is classified as IE5 in accordance with IEC 60034-30-2. The motor includes a frequency converter and PI controller in the motor terminal box. This enables continuously variable control of the motor speed, which again enables adaptation of the performance to a given requirement. An operating panel on the motor terminal box enables setting of required setpoint as well as setting of pump to “Min.” or “Max.” operation or to “Stop”.

The Grundfos Eye indicator on the operating panel provides visual indication of pump status:

  • “Power on”: Motor is running (rotating green indicator lights) or not running (permanently green indicator lights)
  • “Warning”: Motor is still running (rotating yellow indicator lights) or has stopped (permanently yellow indicator lights)
  • “Alarm”: Motor has stopped (flashing red indicator lights).

Communication with the pump is possible by means of Grundfos GO Remote (accessory). The remote control enables further settings as well as reading out of a number of parameters such as “Actual value”, “Speed”, “Power input” and total “Power consumption”. The terminal box holds terminals for these connections:

  • one dedicated digital input
  • two analog inputs, 0(4)-20 mA, 0-5 V, 0-10 V, 0.5 – 3.5 V
  • 5 V voltage supply to potentiometer and sensor
  • one configurable digital input or open-collector output
  • Grundfos Digital Sensor input and output
  • 24 V voltage supply for sensors
  • two signal-relay outputs (potential-free contacts)
  • GENIbus connection
  • interface for Grundfos CIM fieldbus module.

 

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