Omega FTB316D
Liquid Micro-Flow Sensor

Since its inception in 1962, OMEGA has grown from manufacturing a single product line of thermocouples to an established global leader in the technical marketplace, offering more than 100,000 state-of-the-art products for measurement and control of temperature, humidity, pressure, strain, force, flow, level, pH and conductivity. OMEGA also provides customers with a complete line of data acquisition, electric heating and custom engineered products.

The FTB300 Series of digital paddle wheels are an economical choice for low flow rate applications. They use Infra-red light beam technology. Available connections include ¹⁄₈ FNPT, ¹⁄₄ FNPT and ³⁄₈" OD tube fittings.

Six available flow ranges as low as 30 mL/min to 7000 mL/min. Models without a display have a 5 Vdc current sinking pulse output. Units with displays have a 6-digit LCD, with up to 4 decimal positions that display both flow rate and total. All units include an open collector alarm output.

User selectable scale factors include: flow units, (gallons, liters, ounces, and milliliters); time units (minutes, hours, days). Users can also program custom units. Programming values and total are stored in the non-volitile memory. The total reset function can also be disabled. Standard units have a PVDF chemical resistant lens.The enclosure is weather resistant Valox® PBT and is rated NEMA 4X (IP56).

Technical Specification
Flow Rate Min: 0.7l/min
Flow Rate Max: 7l/min
Supply Voltage Min: 9V
Supply Voltage Max: 28V
Accuracy: 6%
Product Range: FTB300 Series
Maximum Working Pressure: 150 psig (10 bar) @ 21°C (70°F)
PVDF Lens Tubing Connectors: 93°C (200°F) at 0 psi
Power: 120 Vac (transformer prewired)
Sensor type: Infrared light beam
Alarm output: Open collector 30 Vdc maximum
Enclosure: NEMA 4X (IP56)
Materials of construction:
Body, paddle, axle Material: PVDF
Connector Material:
Tubing connectors: PVDF Viewing Lens Material Opaque Chemical Resistant
O-Ring Seals: FKM (EPDM optional)
Compression Seal to pump: PVC
Sensor only:
Models: 5 Vdc digital square wave (2-wire) output: 3-wire shielded cable, 1.8 m (6')