Datasheet PLF2000 (Posifa Technologies)

ManufacturerPosifa Technologies
DescriptionLiquid Flow Sensor for Water Metering
Pages / Page5 / 1 — PLF2000 Series. DESCRIPTION. APPLICATIONS. FEATURES. MAXIMUM RATINGS
File Format / SizePDF / 531 Kb
Document Languageenglish

PLF2000 Series. DESCRIPTION. APPLICATIONS. FEATURES. MAXIMUM RATINGS

Datasheet PLF2000 Posifa Technologies

Model Line for this Datasheet

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PLF2000 Series
LIQUID FLOW SENSOR FOR WATER METERING 131 E. Brokaw Road | San Jose CA 95112 | +1 (408) 392-0989 | info@posifatech.com | www.posifatech.com
DESCRIPTION
Posifa designed the PLF2000 series of liquid flow sensors to replace mechanical turbine flow sensors. With a MEMS thermal flow die at its core, PLF2000 is far more accurate and repeatable, even when flow is pulsatile and provides a linear digital output. Because it has no moving parts, PLF2000 does not get stuck nor suffer mechanical breakdown. Cleaning does not require disassembly. Also, because it does not introduce an obstruction (i.e. turbine) in the flow path, it presents minimal flow resistance, making it possible to circulate liquid via gravity, a boiler, or a low-power pump.
APPLICATIONS
PLF2000 features Posifa’s third-generation thermal • Coffee and expresso machines flow die, benefiting from the latest innovations • Water dispensers in microfabrication. The sensor die uses a pair of thermopiles to detect changes in temperature • Water purifiers and filtration systems gradient caused by mass flow, delivering excellent • Beverage vending machines signal-to-noise, and repeatability. The “solid state” • Detergent vending machines thermal isolation structure eliminates the need for the surface cavity or fragile membrane used in • Cleaning chemical mixing systems competing technologies. The sensor die, with its • Liquid cooling systems silicon carbide protective film, is capable of direct contact with liquid, allowing the highest level of sensitivity and minimizing the cost of packaging.
FEATURES
PLF2000 complies with NSF/ANSI 61: Drinking • No moving parts Water System Components – Health Effects and can • Extremely fast response time (< 5 ms) be used safely in water and beverage appliaces. • Can be used with pulsatile flow systems PLF2000 provides both analog (voltage) and digital • Does not obstruct flow (low pressure drop) I2C output. • Disassembly not required for maintenance
MAXIMUM RATINGS
• Operating Temperature: 5 °C to 75 °C • Storage Temperature: 5 °C to 80 °C • Operating Pressure: 50 psi 200410 - Datasheet_PLF2000_LiquiDFLowsensor_rev1_C4 | aPr 2020 | PaGe 1 oF 5
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