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KITA KF02 Series Instruction Manual

Digital flow sensor
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INSTRUCTION MANUAL
DIGITAL FLOW SENSOR
KF02
Series
@2021 KITA Sensor Tech. Co., LTD.
URL http://www.kita.com.tw

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  • Page 1 INSTRUCTION MANUAL DIGITAL FLOW SENSOR KF02 Series @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 2 Do not mount the product in locations where it is ➅ Do not use flammable fluids and/or permeable fluids. exposed to radiant heat. They may cause fire, explosion or corrosion. This could result in damage and/or malfunction. @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 3 Sensors at end-of-life must be disposed of in accor- While installing the KF02 to the pipe, please apply I.D. 9 mm or more air tube. dance with E-Waste regulations of the country/region, NOT disposed of with regular garbage. @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 4 Our warranty applies solely to our product, not to any other damages and injuries which occur by earthquakes, fires, the acts by third party, other matters, acts intentionally, acts accidentally, misuse, or other abnormal conditions that are not the responsible of KITA. ➁...

  • Page 5: Table Of Contents

    5. Specifications ....................43 6. Pressure Loss Characteristics ..............44 7. Thermal Mass Principles of Flow Sensor ..........44 8. Ordering Information ..................45 9. Dimensions ....................... 46 10. Internal Structure ................... 48 @2021 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 Caution Rc1/2, G1/2 28 ~ 30 N.m Rc3/4, G3/4 @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 7: Mounting Bracket

    The tightening torque for screws should be under 0.3 ±0.1 N.m. Mounting screw M3 x 0.5P x 5L Mounting screw @2021 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 Yellow External input Black Black Output 1 (Max. load current：125mA) White Blue White Output 2 (Max. load current：125mA) Blue 0V (GND) @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 9 Analog voltage output：1 ~ 5V Orange Orange Analog current output：4 ~ 20mA Yellow Yellow External input Black Black Output 1 (Max. load current：125mA) White Blue White Output 2 (Max. load current：125mA) Blue 0V (GND) @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 10: 1.3.3 Npn Output, Rs-485 Modbus

    Power supply (DC 12 to 24V DC) Brown Brown Orange RS-485 (B+) Orange RS-485 (A-) Yellow Yellow Black Output 1 (Max. load current：125mA) Black White White Output 2 (Max. load current：125mA) Blue Blue 0V (GND) @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 11: How To Use

    Output 1 Indicator Output 2 Indicator Flow Unit Display Section Button OUT1 OUT2 Setting Button /min Button /min Pulse Modbus Symbol Flow Unit Display Section Symbol flashing when MODBUS data is transmitted. -10- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 12: Functions Instructions

    [FLo ] Flow unit selection [rEFE] Flow reference standard rEFE Select the flow value is shown selection [ F -0 7 ] under standard (ANR) or [rEFE] Flow reference standard normal condition (NOR). selection -11- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 13 The minimum pressure or instantaneous flow can be detected when Bottom value display the power is supplied for a period. Key lock/unlock mode To prevent errors occurring due to unintentional changes of the set values. -12- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 14: Operation Setting

    Measurement Mode Press button for more than 3 sec. Function Selection Mode L/min L/min L/min Flashing Flashing Flashing alternately alternately alternately L/min L/min L/min Press button Enter in each function setting -13- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 15 Selected Output Selected Mode OUT1 L/min L/min Flashing Flashing alternately alternately OUT1 L/min L/min NO mode NC mode ※NOTE：Type setting will not display when Accumulated Pulse Output Mode is set. -14- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 16 ※NOTE：Fixed hysteresis setting will not display when Hysteresis Mode, Accumulated Output Mode and Accumulated Pulse Output Mode is set. Press button to return to Function Selection Mode Flashing alternately L/min L/min -15- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 17 OUT2 type setting : alternately Press button to select OUT2 L/min L/min type. Selected Output Selected Mode OUT2 L/min L/min Flashing Flashing alternately alternately OUT2 L/min L/min NO mode NC mode -16- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 18 Fixed Hysteresis Set Value Mode ※NOTE：Fixed hysteresis setting will not display when Hysteresis Mode and Accumulated Output Mode is set. Press button to return to Function Selection Mode Flashing alternately L/min L/min -17- @2021 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- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 20 L/min L/min L/min L/min ON : Green ON : Red ON : Green ON : Red OFF : Red OFF : Green OFF : Green OFF : Red -19- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 21 K F 0 2 Instruction Manual Series Ho w to Use Press button to return to Function Selection Mode Flashing alternately L/min L/min -20- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 22 50ms, 80ms, 120ms, 200ms, 400ms, 800ms, 1500ms L/min L/min L/min Flashing Flashing Flashing alternately alternately alternately L/min L/min L/min 800ms 1500ms 400ms Press button to return to Function Selection Mode Flashing alternately L/min L/min -21- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 23 3 display refresh time selections include: 200ms, 500ms,1000ms L/min L/min L/min Flashing Flashing Flashing alternately alternately alternately L/min L/min L/min 500ms 1000ms 200ms Press button to return to Function Selection Mode Flashing alternately L/min L/min -22- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 24 L/min L/min flow unit. Flow Sensor Set Unit /min L/min Flashing Flashing alternately alternately /min L/min LPM(L/min) CFM(ft /min*10 Press button to return to Function Selection Mode Flashing alternately L/min L/min -23- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 25 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 Flashing alternately L/min L/min -24- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 26 Display Rotation Set Value L/min L/min Flashing Flashing alternately alternately L/min L/min Display rotation "OFF" Display rotation "ON" Press button to return to Function Selection Mode Flashing alternately L/min L/min -25- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 27 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 -26- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 28 L/min L/min mode. Display Flow Selected Mode L/min Flashing Flashing alternately alternately L/min Instantaneous Flow Mode Accumulated Flow Mode Press button to return to Function Selection Mode Flashing alternately L/min L/min -27- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 29 Flashing alternately alternately L/min L/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 Flashing alternately L/min L/min -28- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 30 1. This function is not available with Output Specification -02 and -04. 2. When external signal is input, the instantaneous flow L/min rate value will be shown ”oooo”. Press button to return to Function Selection Mode Flashing alternately L/min L/min -29- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 31 Baud Rate Set Value L/min L/min L/min Flashing Flashing Flashing alternately alternately alternately L/min L/min L/min 9600 Bd 19200 Bd 38400 Bd ※NOTE：This function only available for Output Specification -02 and -04. -30- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 32 Odd Parity ※NOTE：This function only available for Output Specification -02 and -04. Press button Flashing alternately L/min L/min RTU mode Press button to return to Function Selection Mode Flashing alternately L/min L/min -31- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 33 Fine Adjustment of Instantaneous Flow Rate Value Press button to set fine adjustment value. Flashing alternately L/min L/min Instantaneous Fine Instantaneous Value flow value adjustment flow setting Press button Return to the measurement mode -32- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 34 L/min Output 2 Set Value OUT2 L/min L/min Flashing Flashing alternately alternately OUT2 L/min L/min OUT2 "OFF" OUT2 "ON" Press button to return to Function Selection Mode Flashing alternately L/min L/min -33- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 35 L/min L/min factory default setting. Default setting Selected Mode L/min L/min Flashing Flashing alternately alternately L/min L/min Disable Enable Press button to return to Function Selection Mode Flashing alternately L/min L/min -34- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 36 And release holding the button to return measurement mode. Measurement mode L/min Press button simultaneously over 3 sec. L/min To release holding the button to return measurement mode. L/min Instantaneous flow value return zero. -35- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 37 (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. -36- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 38 Press button return to the measurement mode. Measurement mode L/min Press button over 3 sec. Flashing alternately L/min L/min Press button return measurement mode. L/min -37- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 39 Press button return to the measurement mode. Measurement mode L/min Press button over 3 sec. Flashing alternately L/min L/min Press button return measurement mode. L/min -38- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 40 L/min Flashing Flashing alternately alternately OUT1 L/min L/min Unlock Lock ※NOTE：If a button operation is performed while the key lock setting is ON, [LoC] will displayed. L/min Displayed for 1 sec. -39- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 41: Modbus Rtu Instruction

    9999 XXXX Read 000AH Flow reference standard Read 0012H Flow setting value FL-1 Write 0 : ANR (Standard condition) Write Read 1 : NOR (Normal condition) 0013H Flow setting value FH-1 Write -40- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 42 HYS Write 0 ~ 8 1 : PNP 001FH OUT2 switch Read 0028H Display rotation setting Read 0 : OFF 0 : OFF Write 1 : ON 1 : ON -41- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 43: Error Code Instruction

    L/min Applied Error The instant flow has Ensure the flow is in the exceeded the lower limit of correct direction. the flow display range. L/min -42- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 44: Specifications

    *2 : CONDITION : Outlet Pressure : 1 atmospheric pressure, 25 °C. *3 : 0 ~ 1.0 MPa, Outlet Pressure : 1 atmospheric pressure, 25 °C. *4 : This function only available for Output Specification -02 and -04. -43- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 45: Pressure Loss Characteristics

    (a). temperature distribution is like (b). proportional to the flow rate, the flow rate can be determined from the ratio. -44- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 46: Ordering Information

    F9C ：G1/2, for Flow Rate Range 501, 102. F10C：Rc3/4, for Flow Rate Range 202. F12C：G3/4, for Flow Rate Range 202. Optional Parts BT-27：Mounting bracket, for Flow Rate Range 501, 102. BT-28：Mounting bracket, for Flow Rate Range 202. -45- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 47: Dimensions

    (Por t Size : R c½ , G½ ) 12.5 2 x 29 2×M3×0.5P×3.5L Fl ow Rate R ang e 2 02 ● (Por t Size : R c¾ , G¾ ) 17.5 17.5 2×34 Unit：mm 2×M3×0.5P×3.5L -46- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 48 Fl ow Rate R ang e : 50 1 , 10 2 Flo w Rate R ang e : 20 2 ● ● 3.5 x 4 16.8 3.5 x 4 13.6 Unit：mm -47- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...

  • Page 49: Internal Structure

    Case (PC+ABS) Electronic circuit board Sensor (SiC) O-ring (Viton) Module Holder (PBT) C retaining ring (Stainless Steel) Holder (Stainless Steel) Port Filter O-ring (Stainless Steel) (Viton) Spacer Body (PPS) (Aluminum alloy) -48- @2021 KITA Sensor Tech. Co., LTD. URL http://www.kita.com.tw...
  • Page 50 01 / 2022 Version 3 www.kita.com.tw KITA Sensor Tech. Co., LTD. All Rights Reserved...

This manual is also suitable for:

Kf02-501Kf02-102Kf02-202

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