The flow meter consists of a spinner which is rotated by the flowing medium. The rotor's rotational speed is proportional to the flow volume per unit time. The rotor is fitted with small metal "clamps" made of stainless steel (or optionally titanium or Hastelloy ® ). An inductive proximity switch senses pulses from these clamps and so records the rotational speed, which is proportional to the liquid flow rate.
The OMNI transducer located on the sensor measures the output from the inductive sensor and converts into an analog signal proportional to the rate of flow. The tranducer includes a backlit graphics LCD display which is very easy to read, both in the dark and in bright sunlight. The graphics display shows the measured values and parameters in an easy to read format. The measured values are displayed to 4 places along with units of measure, which can be modified by the user. The electronics produce the analog output (4..20 mA or 0..10V) and two switching outputs which can be used as limit switches or asa two-point controller. The switching outputs are configure as push-pull drivers and can therefore be used both as PNP and NPN outputs. Exceeding the set limit values is signalled by a red LED which is visible over a long distance, and by a clear text on the display. The stainless steel case has a hardened non-scratch mineral glass pane. The unit is operated by a programming ring fitted with a magnet, so that the housing does not need to be opended to change settings. Operating parameters are adjustd by turning the ring to the right or left. (e.g. switching point, hysteresis...). The ring can also be removed to protect the transmitter from unintended or unauthorized programming. An optional goose neck fitting between the sensor head and the electronics provides flexiblity in reading the display and placing the sensor in a confined space.
Qmax 1/min |
Metering Range Liters/min | Type |
1.8 | 0.1-1.5 | OMNI-RRI-010020 |
12 | 0.2-10.0 | OMNI-RRI-010050 |
14.4 | 0.4-12.0 | OMNI-RRI-010070 |
36 | 2.0-30.0 | OMNI-RRI-025080 |
72 | 3.0-60.0 | OMNI-RRI-025120 |
120 | 4.0-100.0 | OMNI-RRI-025160 |
Threaded connections NPT threads on request | ||||||||
G size | Types | H/L |
L1 | B | C | E | X |
SW |
G 3/8 | RRI-010G | 50 | 84 | 29 | 12.5 | 16.5 | 12 | 22 |
G 3/8 | RRI-010A | 50 | 84 | 29 | 12.5 | 16.5 | 14 | 22 |
G 1 | RRI-025G | 70 | 110 | 53 | 23 | 27.5 | 18 | 38 |
G 1A | RRI-025A | 70 | 122 | 53 | 73 | 27.5 | 18 | 38 |
Sensor | Inductive |
Nominal width | DN 10 (RRI-010) DN 25 (RRI-025 |
Process connection | Female thread G 3/8 , G 1 Male thread G 3/8 A, G 1A NPT threads on request Hose nozzle Ø11, Ø30 (other threaded, crimped, and plug-in connections, connections with constant flow rate device or limiters available on request) |
Metering Ranges | 0.1..100 l/min for details, see table "Ranges" |
Accuracy | ±3 % of the measured value |
Repeatability | ±1 % of full scale value |
Pressure drop | max. 0.5 bar |
Pressure Resistance | PN 16 bar |
Medium Temperature | 0..+60 °C |
Materials in contact with medium | Housing PPS, PVDF (Fortron 1140L4) Rotor PVDF Clamps 1.4310 optionally: titanium or Hastelloy® Bearing Iglidur X Axis ceramic Zr0 2 -TZP Seal FKM |
Other Materials Not in contact |
PVC cable, SS 1.4305, 1.4301, CW614N nickelled Electronics Housing SS1.4305, Glass hardened mineral glass Magnet for adjustement ring-Samarium-Cobalt Ring POM |
Supply Voltage | 18-30 VDC, Power consumption <1W |
Analog Output | 4..20 mA / max. load 500 Ω or 0..10 V / min. load 1 k Ω |
Display | backlit graphical LCD-Display (transreflective), 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 | cable 2 m or for round plug connector M12x1, 5-pole |
Electrical protection | short cct and reverse polarity protection |
Ingress Protection | IP 67 (IP 68 when oil filled) |
Weight | OMN-IRRI-010 approx. 0.4 kg OMNI-RRI-025 approx. 0.7 kg |
Ingress Protection | IP 65 (optional IP 44) |
Conformity | CE mark |
Model | FLow transmitter Part Numbers | Price each |
Part Number | Part Number - can be rather cumbersome because there are many options - see the pdf for all the possibilities or the online configurator in the store for a standard unit. Or contact us with details of your requirement to receive a detailed quotation |
Price guidelines
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Options | Options |