Turbine Flowmeter

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ATF3500 Series

Datasheet

The ATF3500 Series is a liquid turbine flowmeter designed for measuring low-viscosity liquids in closed pipes. As fluid flows through the turbine rotor, it rotates, cutting magnetic field lines to generate an electric pulse signal, which is transmitted to the meter to display the flow rate or totalizer. Known for its high accuracy, good repeatability, simple structure, and low pressure loss, it is ideal for applications involving tap water, fuels, solvents, pharmaceutical fluids, food, and more. Key features include high measuring accuracy regardless of mounting position, 4-20 mA with HART signal and pulse outputs, an abrasion-resistant tungsten carbide rotor shaft and bearings, superior materials for aggressive environments, and easy cleaning. The flowmeter is also designed to flush particulates through the turbine and offers flexibility with various pick-up sensors, connections, and sizes for diverse applications.

Technical Specifications
Measuring Medium

Liquid

Max. Viscosity

1-60 cSt

Measuring Range

0.07-800 m3/hr

Accuracy

+/-1.0% of reading (Standrad)
+/-0.5% of reading (Optional)

Repeatability

+/-0.2% of reading

Pressure Drop

Max. 290 mbar at 100% Measuring range (Density 1 g/cm3, Viscosity 1cp)

Unit

m3/d, m3/hr, m3/m, m3/s, l/hr, l/m, l/s, t/d, t/hr, t/m, kg/d, kg/hr, kg/m, kg/s, g/hr, g/m, g/s, USG/m, UKG/m, bbl/d, lb/hr…

Material

Body: S.S. 304 / S.S. 316
Bearing: Tungsten nickel alloy
Rotor: S.S. 420 / S.S. 2205
Housing: Aluminum Alloy, PA66 (Angular Connector)

Process Connection

Flange (DN6 – DN200)
Thread (DN6 – DN50)
Tri-Clamp (DN15 – DN80)

Max. Pressure

Flange: 63 kgf/cm2
Thread: 63 kgf/cm2
Tri-Clamp: 10 kgf/cm2

Local Display

2 or 3 lines LCD
6 Digit flowrate
8 Digit totalizer

Operation Temperature

-20~120 °C (Without Display: -20~70°C)

Ambient Temperature

-20~60 °C

Current Output

4-20 mA (2 wires)
Load: Rohm=(VDC-18) * 50

Pulse Output

Scaled Pulse / Unscaled Pulse
Load: 1000-5000 Ω

Communication

HART (Compatible)
RS485 (MODBUS Protocol)

Data Storage

Operation parameter and totalizer figures are stored by EEPROM ( >10 years)

Cable Entry

Standard: M20 Option: 1/2" NPTF
Angular Connector DIN EN 175301-803 A

Angular Connector

Ingress Protection: IP65
Wire Cross-section: Max. 1.5 mm2
Cable Diameter: 6-8 mm
Power Supply: 18-32 VDC / 18-26 VDC (without display), Ni-MH Battery (3 years working hours)
Protection Class: IP65 (Angular Connector), IP67 (Aluminum Alloy Housing), Explosion Proof, Ex d IIC T6