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KITA KFP02A Series Instruction Manual

Digital flow and pressure sensor
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INSTRUCTION MANUAL
DIGITAL FLOW AND PRESSURE SENSOR
KFP02A
Series
@2022 KITA Sensor Tech. Co., LTD.
URL http://www.kita.com.tw

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  • Page 1 INSTRUCTION MANUAL DIGITAL FLOW AND PRESSURE SENSOR KFP02A Series @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 2 ➅ Do not use flammable fluids and/or permeable fluids. Do not use flammable fluids and/or permeable fluids. This could result in damage and/or malfunction. They may cause fire, explosion or corrosion. @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 3 I.D. 9 mm or more air tube. accordance with E-Waste regulations of the country/ accordance with E-Waste regulations of the country/ region, NOT disposed of with regular garbage. region, NOT disposed of with regular garbage. @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 4 KITA. are not the responsible of KITA.

  • Page 5: Table Of Contents

    ........10 2.2 Functions Instructions ................ 11 2.3 Operation Setting ................. 13 Modbus RTU Instruction Error Code Instruction Specifications Pressure Loss Characteristics Thermal Mass Principles of Flow Sensor Ordering Information Dimensions Internal Structure @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 6: Installation Instructions

    After installation completed, please make gas and power on and operate properly and test leakage to verify the installation correct. Piping Specification Required Torque Rc1/2", G1/2" 28 ~ 30 N.m Rc3/4", G3/4" @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 7: Mounting Bracket

    The sensor can be installed horizontally or vertically, but the flow rates may change because of the installation way of the product or piping. The tightening torque for screws should be under 0.3 ±0.1 N.m. Mounting screw M3 x 0.5P x 5L Mounting screw @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 8: Wiring

    Analog voltage output：1 ~ 5V Orange Orange Analog current output：4 ~ 20mA Yellow External input Yellow Black Output 1 (Max. load current：125mA) Black White Blue White Output 2 (Max. load current：125mA) Blue 0V (GND) @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 9: Pnp Output, Analog Output And External Input

    Analog voltage output：1 ~ 5V Orange Orange Analog current output：4 ~ 20mA Yellow External input Yellow Black Output 1 (Max. load current：125mA) Black White Blue White Output 2 (Max. load current：125mA) Blue 0V (GND) @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 10: Npn Output, Rs-485 Modbus

    Power supply (DC 12 to 24V DC) Brown Brown Orange RS-485 (B+) Orange Yellow RS-485 (A-) Yellow Output 1 (Max. load current：125mA) Black Black White White Output 2 (Max. load current：125mA) Blue Blue 0V (GND) @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 11: How To Use

    Pressure Symbol Button Ag OUT1OUT2 Ag OUT1OUT2 Button kgf/cm bar psi kPa Pulse ft /min mL /min Setting Button Pressure Display Flow Display Pressure Unit Flow Unit Display Section Display Section -10- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 12: Functions Instructions

    Select the flow value is shown [rEFE] Flow reference standard [F-07] under standard (ANR) or normal P.26 setting condition (NOR). Select the analog corresponding [F-08] [ AnG] Analog output setting P.27 to pressure or flow sensor. -11- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 13 The minimum pressure or instantaneous flow can be detected when the power is supplied for a period. Key lock/unlock mode To prevent errors occurring due to unintentional changes of the set values. -12- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 14: Operation Setting

    3 sec. at Function Setting Mode to return to Measurement Mode. /min Measurement Mode Press button for more than 3 sec. Function Selection Mode /min /min /min Press button Enter in each function setting -13- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 15 Hysteresis Mode Window Comparator Mode Accumulated Output Mode Accumulated Pulse Output Mode ※ NOTE : Accumulated Pulse Mode is available in OUT1, but not in OUT 2. Press button (to be continued) -14- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 16 /min hysteresis value. Fixed Hysteresis Set Value Mode ※ NOTE : Fixed hysteresis setting is available when selecting Window Comparator Mode. Press button to return to Function Selection Mode /min -15- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 17 Select output mode : Press button to select output /min mode of OUT1. Set Value Sensor /min /min /min Hysteresis Mode Window Comparator Mode One Point Set Mode Press button (to be continued) -16- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 18 /min hysteresis value. Set Value Fixed Hysteresis Mode ※ NOTE : Fixed hysteresis setting will not display when Hysteresis Mode is set. Press button to return to Function Selection Mode /min -17- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 19 *1. In case hysteresis is set at less than or equal to 2 digits, switch output may chatter if input detected fluctuates near the set point. *2. When using window comparator mode, the difference between two set points must be greater than the fixed hysteresis, otherwise will cause the switch output to malfunction. -18- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 20 Function Selection Mode to start "OUT 2 Setting" [F-02] [oUt2]. 2. Check the [F-01] for the same follow setting. NOTE : The OUT2 Setting dose not have Accumulated Pulse Output Mode. -19- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 21 ON : Green ON : Red ON : Green ON : Red OFF : Red OFF : Green OFF : Green OFF : Red Press button to return to Function Selection Mode /min -20- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 22 7 Response time selections include: Selected Set Value 50ms, 80ms, 120ms, 200ms, 400ms, 800ms, 1500ms Sensor /min /min /min 800ms 1500ms 400ms Press button to return to Function Selection Mode /min -21- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 23 7 Response time selections include: Set Value Selected 2.5ms, 25ms, 100ms, 250ms, 500ms, 1000ms, 1500ms Sensor /min /min /min 2.5ms 25ms 1500ms Press button to return to Function Selection Mode /min -22- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 24 /min 3 display refresh time selections include: Refresh Set Value 200ms, 500ms,1000ms Time /min /min /min 500ms 1000ms 200ms Press button to return to Function Selection Mode /min -23- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 25 /min 3 display refresh time selections include: Set Value Refresh 200ms, 500ms,1000ms Time /min /min /min 200ms 500ms 1000ms Press button to return to Function Selection Mode /min -24- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 26 /min 4 pressure unit selections include: Set Value Pressure kPa, kgf/cm , bar, psi Sensor /min kgf/cm /min /min /min kgf/cm Press button to return to Function Selection Mode /min -25- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 27 2. Normal condition (NOR): the display value is calculated under 0°C, 1atm. 3. Flow rate in the specification is the value at standard condition (ANR). Press button to return to Function Selection Mode /min -26- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 28 Set Value /min /min Flow sensor Pressure sensor ※ NOTE : This function is not available with Output Specification -02 and -04. Press button to return to Function Selection Mode /min -27- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 29 If the sensor is operated 24 hours per day, the durability is calculated as below : ◆ 5 minutes x 1 million cycles = 5 million minutes = 9.5 years ◆ 2 minutes x 1 million cycles = 2 million minutes = 3.8 years -28- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 30 Display Mode Setting Press button to select display mode. /min Display Set Value Flow /min Instantaneous Flow Mode Accumulated Flow Mode Press button to return to Function Selection Mode /min -29- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 31 1. This function is not available with RS485 (Output Specification -02 and -04). 2. This function is available for output of flow rate only. Press button to return to Function Selection Mode /min -30- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 32 2. The sensor will return to [F-90] [AoUT] when select oFF. Press button Range Setting Min. setting value ： ： Min. setting value Press button to adjust the min. /min value. Analog Output Set Value Range Press button (to be continued) -31- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 33 : Measured flow rate range 0 ~ 1000L e.g. : Measured flow rate range 0 ~ 1000L ◆ AG_L range ： AG_L ～ AG_H – 1 digit ◆ AG_H range ： AG_L + 1 digit ～ AG_H -32- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 34 Range Setting Max. setting range ： ： Max. setting range Press button to adjust the max. /min value. Set Value Analog Output Range ※ NOTE : AG_H range：-99 ～ 1000 -33- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 35 Rated pressure range ： ： -100 ~ 1000 kPa Rated pressure range -100 ~ 1000 kPa ◆ AG_L range ： AG_L ～ AG_H – 1 digit ◆ AG_H range ： AG_L + 1 digit ～ AG_H -34- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 36 Set Value Mode /min /min Power-save mode "OFF" Power-save "ON" ※ NOTE : During the Power-Save Mode, the decimal point will flash. Press button to return to Function Selection Mode /min -35- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 37 1. This function is not available with RS485 (Output Specification -02 and -04). 2. When external signal is input, the instantaneous flow rate value will /min be shown ”oooo”. Press button to return to Function Selection Mode /min -36- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 38 Baud Rate Set Value /min /min /min 9600 Bd 19200 Bd 38400 Bd ※ NOTE : This function only available for RS485 (Output Specification -02 and -04). Press button (to be continued) -37- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 39 Even Parity Odd Parity ※ NOTE : This function only available for RS485 (Output Specification -02 and -04). Press button /min RTU mode Press button to return to Function Selection Mode /min -38- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 40 Flashing alternately /min /min Fine adjustment Instantaneous Value setting Value flow value ※ NOTE : Display will flashing between instantaneous flow value and "FST". Press button Return to the measurement mode -39- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 41 Flashing alternately /min /min Fine adjustment Pressure setting Value Value Value ※ NOTE : Display will flashing between pressure value and "FST". Press button Return to the measurement mode -40- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 42 OUT1 ON Press button OUT2 setting Press button to setting OUT2. /min Output 2 Set Value OUT2 /min /min OUT2 OFF OUT2 ON Press button to return to Function Selection Mode /min -41- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 43 Reset to The Default Setting Press the button to return to the /min factory default setting. Default Set Value setting /min /min Disable Enable Press button to return to Function Selection Mode /min -42- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 44 And release holding the button to return measurement mode. Measurement mode /min Press button simultaneously over 3 sec. /min To release holding the button to return measurement mode. /min Pressure value return zero. -43- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 45 And release holding the button to return measurement mode. Measurement mode /min Press button simultaneously over 3 sec. /min To release holding the button to return measurement mode. /min Instantaneous flow value return zero. -44- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 46 (Accumulated flow value mode) until display zero. And release holding the button to return measurement mode. Measurement mode Press button simultaneously over 3 sec. Accumulated value display zero. To release holding the button to return measurement mode. -45- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 47 Press button return to the measurement mode. Measurement mode /min Press button over 3 sec. Flashing alternately /min /min Press button return measurement mode. /min -46- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 48 Press button return to the measurement mode. Measurement mode /min Press button over 3 sec. Flashing alternately /min /min Press button return measurement mode. /min -47- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 49 Mode /min /min Unlock Lock ※ NOTE : If a button operation is performed while the key lock setting is ON, [ LoC][ on] will displayed. /min Displayed for 1 sec. -48- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 50: Modbus Rtu Instruction

    1 : 500ms 2 : 1000ms OUT1 output type Read 0019H 0 : N.O. mode Rated pressure range Write 000EH Read 1 : N.C. mode 3 : -100 ~ 1000 kPa -49- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 51 Pressure setting value H-2 002CH Read / Write error Write Fixed hysteresis setting for Function Code error Read pressure value HYS 002DH Write 0 ~ 8 Illegal data or over setting value -50- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 52: Error Code Instruction

    /min The pressure has exceeded Increase the pressure to the the lower limit of the pressure display range. display range. /min -51- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 53: Specifications

    *3. 0 ~ 1.0 MPa, Outlet Pressure : 1 atmospheric pressure, 25 °C *4. Outlet flow rate = 0 L/min, 25 °C *5. Corresponding to pressure sensor 0 ~ 1000 kPa *6. This function only available for Output Specification -02 and -04. -52- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 54: Pressure Loss Characteristics

    (b). proportional to the flow rate, the flow rate can be determined from the ratio. -53- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 55: Ordering Information

    F12C : G3/4", for Flow Rate Range 202. Optional Parts Optional Parts BT-27 : Mounting bracket, for Flow Rate Range 501, 102. BT-28 : Mounting bracket, for Flow Rate Range 202. -54- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 56: Dimensions

    F lo w Rate R ange 2 0 2 ● ( Por t Si ze : R c3 /4 ”, G3 /4 ”) 17.5 17.5 2×34 2×M3×0.5P×3.5L ※ Please do not use grey Unit：mm holes which are invalid. -55- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 57 Fl ow Rate R ange : 5 0 1 , 1 0 2 F l o w Rate R an ge : 2 02 ● ● 3.5 x 4 16.8 3.5 x 4 13.6 Unit：mm -56- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 58: Internal Structure

    Aluminum alloy O-ring Viton C retaining ring SUS 420 Throttle SUS 303 L spacer SUS 304 Sensor O-ring Viton Sensor Gasket Gasket Viton Port Filter SUS 304 Sensor Board GE4F Module Holder -57- @2022 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 59 PR-0679A 02/2023 www.kita.com.tw KITA Sensor Tech. Co., LTD. All Rights Reserved...

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