Flow 33 Inductive Flow Meter



  • Bluetooth Connected App
  • Reliable & Well Built
  • Corrosion Proof

Flow 33 Inductive Flow Meter

The Comac Cal Flow 33 inductive flow meter is an ideal solution for the customers who need pulse or current signals from the meter without a display unit.

The flow meter is manufactured in structural steel; however, full corrosion-proof construction is commonplace. The meter’s state is indicated by four informative LEDs found on the evaluation unit.

The power source for the Flow 33 is an electrical connection via a standard 8-pin M12 connector and Bluetooth communication is used to connect to its own android/windows software. The operator can set up the flow meter with their own mobile devices, such as mobile phones or tablets in the field. Thanks to this innovative application, the operator can.

  • Carry out simple diagnosis on the meter.
  • Simulate a flow rate within wiring check.
  • Change all meter’s setting including two impulse contacts (or using the flow switch NO contact and the status signal) and one 4÷20mA current loop output.
  • Use the App to display the current flow rate.

It is picked up either by stainless steel, tantalum or Hastelloy electrodes. Process connections are available in the form of flanged- or inter-flanged connections, those used in food process, screwed, clamp or threaded connections.

The FLOW 33 indictive flow meter is flexible to use. Several types of lining are implemented, namely hard and soft rubber, rubber with certificate for drinking water, PTFE, PFA or E-CTFE.

Features of the Inductive FLOW 33 include:

  • High quality and reliability
  • Control by Bluetooth communication using our own android/windows software.
  • DC current output and impulse contacts with optional change to the flow switch contact and meter’s state contact
  • Electric standard 8-pin M12 connector
  • Compact, full corrosion-proof construction
  • Hard wearing and very well built
  • High variability of mechanical connection
  • Variety of materials for liners and electrodes
  • The state is indicated by LEDs
  • Easy installation and almost maintenance-free attendance ​


Manufacturer: Comac Cal

Part Ref: F33

IWN: FLO-330000

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Product Specification

Below is the product specification of the Flow 33 Inductive Flow Meter from Comac Cal. If you require further information about the Flow 33, please contact our expert customer service advisors on 01722 442 307.

24V DC±15% power with polarity reversal protection
Input Power
4.2 VA
Maximum fluid temperature
90 °C (according to lining) for higher temperatures upon agreement with the manufacturer
Flow sensor degree of protection
IP65, IP67, IP68
Measuring range (Qmin/Qmax)
Unidirectional/bidirectional for 0.2…12 m/s (1/60)

Diameter Nominal

DN 4…600 (other DN upon agreement with the manufacturer)

Electrode Material

CrNi steel DIN 1.4571, Hastelloy C4, Titanium, Tantalum



Flow Meter Accuracy

up to 0.5 %, rep up to 0.2 %

​ Max. Ambient Temperature

55 °C

Lining material

Rubber (hard, soft, with potable water test certificate): DN 25…DN 600 (Tmax 70 °C)

PTFE: DN 10…DN 80 (Tmax 150 °C for separate version), PVDF: DN 4…DN 20,

Rilsan: DN 25…DN 600 (Tmax 70 °C for separate version)

ETFE: DN 100…DN 600 (Tmax 150 °C), PFA, Ceramics (upon agreement with the manufacturer)​

Sensor material

Flanged – stainless steel and structural steel with polyurethane coating.

Sandwich, threaded, food grade – stainless steel.


PN10 (DIN), PN16 (DIN), PN25 (DIN), PN40 (DIN), PN64 (DIN), PN100 (DIN)

10K (JIS), 20K (JIS), 40K (JIS)

150lb (ANSI), 300lb (ANSI)