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')
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 |