ATSENSE Fuel Flow Detector FS Series
This precision flow detector provides high accuracy and low pressure loss suitable for various fuels like gasoline, light oil, and pure alcohol. Equipped with a 10μm mesh filter, optional flow, temperature, and pressure sensors, its radial piston-cylinder design converts fluid energy into quantifiable rotations. The system includes a Hall element and microprocessor for precise measurements with minimal leakage. Ideal for returnless fuel systems without additional pressure devices.・Wide range of flow rates FS-1213: 0.06 to 108L/h, FS-1214: 0.3 to 600L/h ・High accuracy ±0.2%R.D ・High resolution FS-1213: 0.001mL per pulse, FS-1214: 0.011mL per pulse ・Built-in 10μm mesh filter (cleanable and recyclable, with a built-in pressure sensor and temperature sensor (option)) ・Low pressure loss Measurements can be made by using a returnless system with low pressure loss in the detector (a filter and sensor assembly) without the use of a pressure device ・Backflow correction Two-phase pulse output of the forward and reverse flow ・Low temperature measurement Measurements possible from -40℃ ・Built-in temperature and pressure sensor (option)
【Measurement principles】 The measuring part is equipped with four cylinders and pistons arranged radially, and the piston rods are connected to a vertical crankshaft. The pistons perform a back-and-forth, reciprocating motion due to the energy of the fluid, and the strokes are quantified. The reciprocating motion of the pistons is converted into rotation of the crankshaft, and this rotation linked to the transmitter by magnetic coupling. The transmitter, consisting of a Hall element and a high-speed microprocessor, generates pulses which are exactly proportional to the flow rate. And because there is virtually no clearance between the cylinders and the piston, accurate measurements can be made with very little leakage even for low-viscosity fluids over a minute flow range. 【Low pressure loss】 Because the pressure loss is low, a pressure device is not required. Installing a FS series detector in the fuel pipe of a returnless system allows a measurement which closely approximates that in the actual fuel line. 
| Model | FS-1213 | FS-1214 |
| Flow measurement range | 0.001 to 1.8L/min (0.06 to 108L/h) | 0.005 to 10L/min (0.3 to 600L/h) |
| Accuracy | Reading ±0.2% or less | |
| Minimum resolution | 0.001mL (1000P/mL) | 0.011mL (90P/mL) |
| Operating pressure | 1MPa (max) | |
| Operating fluid temperature | -40 to 80℃ | |
| Connection port | Rc 1/4 | Rc 3/8 |
| Material (casing) | A5052 | |
| Material (detection part) | Sensors: SUS303, SUS440C | |
| Filter unit | Filter: SUS304 Filter plate: SUS304 | |
| Fittings | SUS304 | |
| External dimensions | W: 120 H: 208 D: 70 (excluding projecting parts) | W: 225 H: 250 D: 130 (excluding projecting parts) |
| Weight | Approx. 2.6kg (according to the particular assembly) | Approx. 6.5kg (according to the particular assembly) |
