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Comac Cal Flow 38B Batch Controller

A batch controller (or sometimes called batch meter) works with a flow meter, allowing the user to control pumps, actuators etc to fill a predefined batch volume of liquid to a process/tank.  Comac Cal Flow 38B is a simple, robust system that works with a range of flow meters also available from Fluidic.  Typically a flow meter will give pulses to the batch meter to count volume.

Operation is simple.  The user can adjust the batch size by turning a knob on the front of the batch controller.  To start operation a simple, robust green push button triggers a relay output to open a valve actuator etc and start flow.  Upon completion of the batch, the Comac Cal 38B simply closes the switch and therefore the actuator.  There is a red emergency stop button to close the relay at any time during the batch.  If the batch has been paused, the entire incomplete batch is zeroed and the unit is ready for restarting the batch again from the beginning using the green button.  This allows the user to readjust batch volumes mid process.


Comac Cal 38B Batch Controller Benefits and Specifications

  • Low-cost batch controller that needs no PLC system to operate
  • Doubled relay switches (with 250V, 10A rating)
  • UK Mains supply (230Vac) as standard
  • Robust and easy operation
  • LC Display showing batch size and current total


Video: Comac Cal Factory in Czech Republic


Fluidic are a recognised partner of Comac Cal for Scotland and the North of England. Our instrumentation engineers are product trained and able to help with instrument selection within the full Comac Cal range of flowmeters and switches. Please call either office for more information (Glasgow 0141 641 5920, Warrington 01925 572401).


  • Download Flow 38 Batch Controller Datasheet (Czech)
  • Download Flow 38 Batch Controller Manual (English)
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