FLR-D-Series

Indicating Flow Meter with Analog Outputs

Models In Stock

2% FS Accuracy
No Straight Pipe Run Required
Mounts in Any Position
4 to 20 mA, 0 to 5 Vdc and 0 to 10 Vdc Outputs Standard

See Product Overview

FLR-D-Series

From ^TWD 45,330

Models In Stock

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More Variations Available

See all series options below

Data Sheet

Product Overview

Accuracy ± 2 %
Circuit Protection Reverse polarity, Current Limit
Connection 4 - Pin Connection
Digit Size 0.70" - Numeric, 0.35" - Alphanumeric
Display Type LCD
Enclosure Ratings IP52, IP54, NEMA Type 12, NEMA Type 13
Isolation Inherently isolated from the piping system
Materials 316 Stainless Steel, Stainless Steel
Non-Linearity ± 0.05%
Number of Digits 8
Power Consumption max 25 mA
Process Temperature, Max 116 °C
Process Temperature, Min -29 °C
Repeatability ± 0.5%
Response Time 1 sec
Scale Digital
Series ID FLR-D-Series
Temperature Drift Note 0.05% of span per °C maximum
Valve Included false

Supported Applications

The Omega FLR Series consists of rugged in-line flow sensors designed for process control applications. These microprocessor-based variable area flow meters combine piston-type technology with solid-state circuitry to monitor both instantaneous flow rate and total accumulated flow. The series is available for liquid or gas service, supporting media including oil (API Oil), water, water-based fluids, caustic and corrosive liquids, air/compressed gases, and phosphate esters.

Documented applications include:

Bearing lubrication
Case drain verification
Gun drill and machine cooling
Pump flow outputs

Operating Conditions & Performance

The FLR Series operates within a process temperature range of -29 to 116°C (-20 to 240°F). Maximum pressure ratings are specified as 3500 psig for liquids and 1000 psig for gases. The units feature an enclosure rating of NEMA 12 and 13 (IP52/54) with a response time of 1.0 sec.

Performance specifications include:

Accuracy: 2% FS
Repeatability: ±0.5%
Non-Linearity: ±0.05%
Temperature Drift: 0.05% of span per °C maximum

The sensors provide in-field compensation for specific gravity, viscosity, pressure, and temperature. They require no straight pipe run requirement and can mount in any position.

Configuration Options

The series offers configurable dimensions across multiple nominal port sizes: ¼ (SAE 6), ½ (SAE 6), ¾ (SAE 6), 1 (SAE 6), 1¼ (SAE 6), and 1½ (SAE 6). Process connections are available in NPT, with British standard pipe thread parallel (-BSPP) as an option.

Body materials include:

Anodized aluminum (2024 - T351)
C360 brass

Wetted parts consist of 2024-T351 anodized aluminum or C360 brass for the body, piston, and cone; T316 SS spider plate; T302 SS spring; FKM pressure seals; and PPS/ceramic internal magnet.

Output signals are available in:

4 to 20 mA (loop-powered, 30 Vdc maximum)
0 to 5 Vdc
0 to 10 Vdc

The display features an 8-digit numeric readout for rate and totalizer values alongside an alphanumeric display for units and setup. Optional accessories include a NIST certificate (add "-NISTS" suffix) and remote display options.

Key Product Differences

Variants are distinguished by flow range, medium type, port size, and body material:

Liquid Ranges (Oil/Water): Models cover ranges from 0.2 to 150 GPM across various NPT sizes.
Gaseous Ranges (Air @ 100 psi): Models cover ranges from 2 to 1000 SCFM.
Housing Options: Standard models feature anodized and epoxy powder-coated aluminum with a polycarbonate lens; brass body options are available for specific liquid applications.
Connection Types: Standard NPT connections or optional BSPP threads via model suffix modification.