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Liquid Flow Sensor for Liquid Metering PLF2000 Series
Liquid Flow Sensor for Liquid Metering

Liquid Flow Sensor for Liquid Metering - PLF2000 Series

Coffee Machines and Espresso Machines
Water Dispensers
Water Purifiers and Filtration Systems
Beverage Vending Machines
Detergent Vending Machines
Cleaning Chemical Mixing Systems
Liquid Cooling Systems

Product Model: PLF2000 Series

Product Introduction

Liquid Flow Sensor for Liquid MeteringPLF2000 Series Description:

The PLF2000 series liquid flow sensors are designed to replace mechanical turbine flow sensors. With MEMS thermal flow chip at the core, PLF2000 offers higher accuracy and repeatability, providing linear digital output even under flow pulsation. With no moving parts, PLF2000 will not jam or suffer mechanical failures. No disassembly is required for cleaning. Additionally, since no obstacles (i.e., turbines) are introduced into the flow path, it has minimal flow resistance, allowing liquid to circulate via gravity, boilers, or low-power pumps.


Thanks to precision machining innovations, PLF2000 uses third-generation thermal flow chips. The sensor chip uses a pair of thermopiles to detect temperature gradient changes caused by mass flow, providing excellent signal-to-noise ratio and repeatability. The 'solid-state' thermal insulation structure eliminates the need for surface cavities or fragile membranes used in competing technologies. The sensor chip, along with its silicon carbide protective film, can directly contact liquids, allowing the highest level of sensitivity and the lowest cost packaging.

PLF2000 complies with NSF/ANSI 61: Drinking Water System Components - Health Effects, and is safe for use in water and beverage appliances.

PLF2000 provides both analog (voltage) and digital I2C outputs.


Liquid Flow Sensor for Liquid MeteringPLF2000 SeriesFeatures:

No moving parts

Extremely fast response time (< 5 ms)

Suitable for pulsating flow systems

Non-blocking flow (low pressure drop)

No disassembly required for maintenance


Liquid Flow Sensor for Liquid MeteringPLF2000 SeriesApplications:

Coffee machines and espresso machines

Water dispensers

Water purifiers and filtration systems

Beverage vending machines

Detergent vending machines

Cleaning chemical mixing systems

Liquid Cooling Systems


Liquid Flow Sensor for Liquid MeteringPLF2000 SeriesMaximum Ratings:

Operating temperature: 5 °C ~ 75 °C

Storage temperature: 5 °C ~ 80 °C

Operating pressure: 50 psi