Skip to content

omni instruments | sensors and data acquisition equipment

Omni Instruments Ltd

Sales & Technical Support

  • +44 (0) 1382 443000
  • info@omni.uk.com
Omni Instruments Ltd
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
Products
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
  • Home
  • Custom Systems
  • Our Brands
  • System Hires
  • About
  • Contact
Need Help?
£0.00 0 Basket
Product
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
  • Data Loggers
  • Displacement
  • Display & Control
  • Flow Meters
  • Gas Detection
  • Gyros & Accelerometers
  • Level & Distance
  • Load Cells
  • Pressure Sensors
  • Radio & GSM Telemetry
  • Remote Monitoring
  • Serial Ethernet & ModBus
  • Solar & Wind Power
  • Subsea & Offshore
  • Temperature and Humidity
  • Test & Calibration
  • Torque Transducers
  • Vibration Monitoring
  • Voltage & Current
  • Water Quality
  • Weather Instruments
  • Accessories
£0.00 0 Basket
Home / Flow Meters / OmniPlus Flow Sensors / OmniPlus-RRH Flow Transmitter
OmniPlus-RRH Flow Transmitter
OmniPlus-RRH Flow Transmitter - Image 2

OmniPlus-RRH Flow Transmitter

The OmniPlus-RRH Flow Transmitter/Switch is a Flow sensor optimised for measuring flow rate of water and low viscous fluids in small diameter pipes. The meters cover pipe diameters of 3/8″ and 1″ pipe diameters and flow ranges from 0.1-1.5 l/min up to 4-100 l/min. Flows are measured using an impeller with hall effect sensor. It provides a 4(0)-20mA or 0(2)-10V output, along with a digital display for local indication of flow measurement. The OmniPlus-RRH features a programming ring that can be turned to different positions to set or modify parameters.

View Options

Need help finding the right product?

CONTACT US

Downloads

Datasheet

Omni-RRH Flow Transmitter

  • Description

Description

The OmniPlus-RRH flow transmitter is designed to monitor water and low viscosity liquids. The flow transmitter utilises an impeller and hall-effect sensor to pick up the speed of the flows. It features an easy-to-read backlit graphical LCD display, analogue output (4-20mA or 0-10V), and two programmable switches, operable through a programming ring for settings adjustments. The transmitter’s construction includes a Brass (Nickel-plated), or Stainless Steel, housing and a display with a hardened mineral glass pane and an Aluminium housing, suitable for industrial use and capable of operation and measurement in both forward and reverse flow directions

Features

  • Optimised for use with water and low viscosity liquids
  • Analogue output 4-20mA or 0-10V
  • Two programmable switches
  • Graphical LCD display, backlit, can be read in sunlight and in the dark
  • Selectable units in the display
  • Programmable parameters via rotatable, multi-function ring
  • Electronics housing with non-scratch, chemically resistant glass
  • Rotatable electronic housing for best reading position
  • Designed for industrial use

Applications

  • Flow monitoring in cooling and lubricoolant applications
  • Ideal for higher working pressures, up to 100 Bar, (RRH-025..M: PN 40)

Specifications

 

Measuring Principle Magnet-Equipped Impeller, Detection With Hall Sensor
Measurement Media Water or Other Low-Viscosity Liquids
Metering Range Flow: 0.1…100 l/min.
Measurement Uncertainty ±3 % of reading.
Pressure Loss Max 0.5 Bar
Flow Range Type Measurement Range
l/min (H2O)
Q max
l/min (H2O)
OMNIPLUS-RRH-010…020 0.1 … 1.5 1.8
OMNIPLUS-RRH-010…050 0.2 … 10.0 12.0
OMNIPLUS-RRH-010…070 0.4 … 12.0 14.4
OMNIPLUS-RRH-025…080 2.0 … 30.0 36.0
OMNIPLUS-RRH-025…120 3.0 … 60.0 72.0
OMNIPLUS-RRH-025…160 4.0 … 100.0 120.0
Media Temperature 0 to +70°C
Storage Temperature -20 to +80°C
Wetted Materials Housing CW614N Nickel-Plated or 1.4305
Impeller PVDF with Magnets, Epoxy Resin
Bearings Iglidur X
Axle Ceramics Zr02-TZP
Gaskets FKM, Optional: NBR, EPDM
Supply voltage 18-30vDC
Current Consumption <130mA (SIO Mode, output not under load)
IO-Link Specification IO-Link revision
Bit rate
Minimum cycle time
SIO mode
Port class
Block parameterisation
Data storage
V1.1
COM2 (38400 Bit/s)
20 ms
yes
A compatible
yes
yes
Analogue Output Current: 4-20mA
0-20mA
Voltage: 0-10V
2-10V
0-5V
1-5V
0.5-4.5V
Switching Outputs 2 transistor outputs push-pull, parameterisable as NPN o.C.
Short-circuit and reverse polarity resistant Iout = 100 mA max per output
Configurable on the device as
● Limit switch
● Frequency output
● Pulse output
● Signal output for preset counter
Display Backlit graphical LCD-Display (transflective), 128 x 64 pixels, White Backlight, Red on Alarm Notification.
Electrical Connection Round plug connector M12x1, 5-pole
Ingress Protection IP65 /IP67
Weight RRH-010, Approx 0.69Kg. RRH-025. Approx 1.95Kg
Compliance CE

The OmniPlus-RRH 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 multi-function programming ring, which allows users to set parameters such as switching points and hysteresis.

Ordering Guide

OMNIPLUS-RRH – 1 – 2 – 3 – 4 – 5 – 6 – 05M

 

1. Nominal Size
010 DN10
025 DN25
2. Mechanical Connection
G Female Thread
A Male Thread
T Hose Nozzle
3. Connection Material
M CW614N Nickel-Plated
K 1.4305
4. Housing Material
M CW614N
K 1.4305
5. Inlet Drilling
020 Ø 2.0 mm
050 Ø 5.0 mm
070 Ø 7.0 mm
080 Ø 8.0 mm
120 Ø 12.0 mm
160 Ø 16.0 mm
6. Gasket Material
V FKM
E EPDM
N NBR
7. Impeller
05M With 5 Magnets

One product is listed below to provide an indicative price, but a quotation can be provided for any options available from the options in the ordering guide above. Contact info@omni.uk.com to obtain a quotation.

 

Product

Ref

Price

Product Description

links

  • About
  • Contact
  • Custom Systems
  • Privacy & Cookies
  • Terms & Conditions

omni instruments

Omni Instruments Ltd,
Unit 1, 14 Nobel Road,
Wester Gourdie Industrial Estate,
Dundee, DD2 4UH, UK

Sales & Support

  • +44 (0) 1382 443000
  • info@omni.uk.com

Payments

mastercard-color
visa-color
amex-color
Copyright Omni Instruments 2026 | Design. Build. Host.

        We are here to help

        Need help with your products or have a question for us on our custom systems? Use the form below to send us a message and our experts will be in touch to help.

        Call us on +44 (0)1382 443000