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 30ml/min to 7000 ml/min. No display models 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 include: 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 clear PVC viewing lens, PVDF chemical resistant lens are available as an option. The enclosure is a weather resistant Valox PBT and rated NEMA 4X (IP56).
SPECIFICATIONS Max Working Pressure: PVC Lens: 9 bar (130 psig) at 21°C (70°F) PVDF Lens ("-PVDF" Option): 150 psig (10 bar) @ 21°C (70°F) Max Fluid Temperature: PVC Lens, FNPT Connectors: 54°C (130°F) at 0 PSI PVDF Lens ("-PVDF" Option), Tubing Connectors: 93°C (200°F) at 0 PSI Full Scale Accuracy: ±6% Input Power Requirement: 9 to 28 Vdc Sensor Type: Infrared light beam Alarm Output: Open collector 30 Vdc max Enclosure: NEMA 4X (IP56) Approximate Shipping Wt: 0.45 kg (1 lb) Materials of Construction Body, Paddle, Axle Material: PVDF Connector Material FNPT Connections: PVC Tubing Connectors: PVDF Viewing Lens Material Option Clear See Through: PVC Opaque Chemical Resistant: PVDF (optional) 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')