DatasheetsPDF.com

PLF2000 Dataheets PDF



Part Number PLF2000
Manufacturers Posifa
Logo Posifa
Description LIQUID FLOW SENSOR
Datasheet PLF2000 DatasheetPLF2000 Datasheet (PDF)

PLF2000 Series LIQUID FLOW SENSOR FOR WATER METERING 131 E. Brokaw Road | San Jose CA 95112 | +1 (408) 392-0989 | [email protected] | 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 mechani.

  PLF2000   PLF2000



Document
PLF2000 Series LIQUID FLOW SENSOR FOR WATER METERING 131 E. Brokaw Road | San Jose CA 95112 | +1 (408) 392-0989 | [email protected] | 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. PLF2000 features Posifa’s third-generation thermal flow die, benefiting from the latest innovations in microfabrication. The sensor die uses a pair of thermopiles to detect changes in temperature gradient caused by mass flow, delivering excellent signal-to-noise, and repeatability. The “solid state” thermal isolation structure eliminates the need for the surface cavity or fragile membrane used in competing technologies. The sensor die, with its silicon carbide protective film, is capable of direct contact with liquid, allowing the highest level of sensitivity and minimizing the cost of packaging. PLF2000 complies with NSF/ANSI 61: Drinking Water System Components – Health Effects and can be used safely in water and beverage appliaces. PLF2000 provides both analog (voltage) and digital I2C output. APPLICATIONS • Coffee and expresso machines • Water dispensers • Water purifiers and filtration systems • Beverage vending machines • Detergent vending machines • Cleaning chemical mixing systems • Liquid cooling systems FEATURES • No moving parts • Extremely fast response time (< 5 ms) • Can be used with pulsatile flow systems • Does not obstruct flow (low pressure drop) • 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 Datasheet_PLF2000_LiquidFlowSensor_Rev1_C6 | Nov 2020 | PAGE 1 OF 5 PLF2000 Series LIQUID FLOW SENSOR FOR WATER MONITORING 131 E. Brokaw Road | San Jose CA 95112 | +1 (408) 392-0989 | [email protected] | www.posifatech.com SPECIFICATIONS SPECIFICATIONS PLF2105 PLF2135 Test Conditions: Vin=5±0.01VDC, Ta=22°C. MIN 50 100 TYP MAX UNIT 700 ml/min 10000 ml/min CONDITIONS Output Count (calibrated) 409 to 3686 count Null Count (calibrated) 380 440 count Output Count (raw) 30000 to 45000 count Output (calibrated) 0.5 to 4.5 VDC Flow Repeatability 0.5 % F.S. Flow Response Time1 5 ms Warm Up Time 5 sec Operating Pressure 50 psi Operating Temperature 5 75 °C Storage Temperature 5 80 °C Supply Voltage 5 5.5 VDC Supply Current 15 mA at 5 VDC supply Wetted Materials NSF/ANSI 61 compliant nylon, silicone and food grade conformal coating Notes: 1. 10% to 90% rise time of the flow sensor to electrically respond to any mass flow change. May be affected by the pneumatic interface. Datasheet_PLF2000_LiquidFlowSensor_Rev1_C6 | Nov 2020 | PAGE 2 OF 5 PLF2000 Series LIQUID FLOW SENSOR FOR WATER MONITORING 131 E. Brokaw Road | San Jose CA 95112 | +1 (408) 392-0989 | [email protected] | www.posifatech.com OUTPUT DESCRIPTION For PLF2105 Calibration Conditions: 20 °C, supply = 5V, flow is driven from a centrifugal pump. For PLF2135 Flow Output (ml/min) (volt) 0 0.5 85 1.71 100 1.78 150 1.96 202 2.20 303 2.60 402 2.92 503 3.15 602 3.27 702 3.35 Count 409 1362 1403 1572 1761 2103 2353 2535 2650 2715 Flow Output (ml/min) (volt) 0 0.51 100 1.05 1050 2.35 2390 2.89 3060 3.12 4240 3.38 5520 3.61 7060 3.75 9000 4.32 10000 4.52 Count 412 853 1890 2370 2510 2695 2930 3050 3370 3580 Calibration Conditions: 20 °C, supply = 5V, flow is driven from a pressurized tank. Datasheet_PLF2000_LiquidFlowSensor_Rev1_C6 | Nov 2020 | PAGE 3 OF 5 PLF2000 Series WATER FLOW SENSOR FOR WATER MONITORING 131 E. Brokaw Road | San Jose CA 95112 | +1 (408) 392-0989 | [email protected] | www.posifatech.com PACKAGE DIMENSIONS PLF2105 123456 PLF2135 Contact Posifa for sensor CAD model. Pin# Description 1 VDD 2 GND 3 Out 4 SDA 5 SCL 6 N/C Mating connector: JST S6B-PHSM4-TB or Equivalent 123456 Datasheet_PLF2000_LiquidFlowSensor_Rev1_C6 | Nov 2020 | PAGE 4 OF 5 PLF2000 Series WATER FLOW SENSOR FOR WATER MONITORING 131 E. Brokaw Road | San Jose CA 95112 | +1 (408) 392-0989 | [email protected] | www.posifatech.com ORDERING INFORMATION PART NUMBER PLF2105 PLF2135 SPECIFICATIONS 50 to 700 ml/min, voltge and digital I2C output 100 to 10000 ml/min, voltage and digital I2C output Please contact Posifa to place an order. CUSTOMIZATION OPTIONS If the standard product described in this data sheet does not completely meet your needs, please contact Posifa Technolog.


NTP-8818 PLF2000 PLF2105


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)