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Omni-F Flow Transmitter/Switch

Description

The Omni-F Flow Transmitter/Switch is designed to measure flow rates in aqueous fluids using calorimetric sensor technology. This measurement principle allows for the determination of flow speed by monitoring heat transfer, providing a responsive and direct indication of flow dynamics. The device is engineered to output an analogue signal, which can be configured to provide either a 0/4-20mA output, making it adaptable to various control and monitoring systems.

Features

  • Flow indicator for industrial use, without moving parts
  • Short response times for a calorimetric sensor
  • Medium comes into contact with only one material
  • Analogue output 0/4-20mA
  • Two programmable switches (push-pull)
  • Graphical LCD display, backlit (transreflective), can be read in sunlight and in the dark
  • Programmable parameters via rotatable, removable ring (programming protection)
  • Full metal housing with non-scratch, chemically resistant glass
  • Rotatable electronic head for best reading position
  • Small, compact construction
  • Simple installation

Specifications

Sensor Calorimetric measurement principle
Process connection Screw-in ½”BSP Male Thread
Metering range water 2…150 cm/s range.
Measurement accuracy dependent on the installation location and flow conditions,
typically ±10% of full scale value or 2 cm/s, ±5% of full scale value measured in the T-piece
Repeatability ±1%
Dynamics in water (25 °C) at average flow speed of approx. 1-2 seconds
Hysteresis Adjustable, position of hysteresis depends on min. or max. switching value
Pressure resistance PN 100 Bar (PN 200 Bar available on request)
Medium temperature 0 to +70°C
Ambient temperature -20 to +70°C
Storage temperature -20 to +80°C
Materials medium-contact Stainless steel 1.4571
Materials non-medium-contact Housing Glass Magnet Ring
Stainless steel 1.4305 Mineral glass, hardened, Samarium-Cobalt, POM.
Supply voltage 24vDC ±10%
Analog output 0/4-20mA
Power consumption <1W
Switching outputs
S1 and S2		 Transistor output “push-pull” (resistant to short circuits and polarity reversal) Iout = 100mA max. per output
Display Backlit graphical LCD-Display (transflective), extended temperature range -20…+70 °C, 32 x 16 pixels, background illumination, displays value and unit, flashing LED signal lamp with simultaneous message on the display.
Electrical connection Round plug connector M12x1, 5-pole
Ingress protection IP67
Weight approx. 0.25 kg
Conformity CE

The Omni-F Flow Transmitter incorporates programmable switching capabilities, offering two independent switch outputs. These switches can be configured to trigger alarms or control external devices based on predefined flow thresholds. The programming interface includes a graphical display and a programming ring, which allows users to set parameters such as switching points and hysteresis. For security, the programming ring can be removed, preventing unauthorized changes to the device’s configuration.

Constructed to withstand industrial demands, the Omni-F features a robust housing made primarily of stainless steel. This material provides excellent resistance to corrosion and mechanical stress. The device also includes a durable glass display, which is designed to be scratch-resistant and chemically resilient, ensuring that the display remains clear and legible over time.