Low Flow Indicating Paddlewheel Flow Meter

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