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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).
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')
|Model with Display||Model without Display||Range|
|1/8 FNPT||1/4 FNPT||3/8" OD Tube||1/8 FNPT||1/4 FNPT||3/8" OD Tube||lpm||gph|
|FTB311D||FTB321D||FTB331D||FTB311||FTB321||FTB331||0.03 to 0.3||0.48 to 4.7|
|FTB312D||FTB322D||FTB332D||FTB312||FTB322||FTB332||0.1 to 1||1.6 to 15.8|
|FTB313D||FTB323D||FTB333D||FTB313||FTB323||FTB333||0.2 to 2||3.2 to 31.7|
|FTB314D||FTB324D||FTB334D||FTB314||FTB324||FTB334||0.3 to 3||4.8 to 48|
|FTB315D||FTB325D||FTB335D||FTB315||FTB325||FTB335||0.5 to 5||7.9 to 79|
|FTB316D||FTB326D||FTB336D||FTB316||FTB326||FTB336||0.7 to 7||11.1 to 111|