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Kyoritsu Electrical Instruments Works KEW 6514BT Instruction Manual
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Kyoritsu Electrical Instruments Works KEW 6514BT Instruction Manual

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Multifunction Tester
KEW 6514BT

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Summary of Contents for Kyoritsu Electrical Instruments Works KEW 6514BT

  • Page 1 Instruction manual Multifunction Tester KEW 6514BT...

  • Page 2: Table Of Contents

    Contents 1. Safety warnings ......................1 2. Features ........................4 3. Specifications ......................6 3.1 Measuring range and accuracy ................6 3.2 Possible number of measurements within the effective battery voltage ....10 3.3 Others ........................10 3.4 Operating uncertainty ..................11 4.
  • Page 3 12. Phase rotation ......................38 13. RCD ......................... 40 13.1 Measurement principle ..................40 13.2 Measurement method..................40 13.3 Auto test......................44 14. EV charger (EVSE function) ..................45 14.1 CP signal (CP) ....................46 14.2 Latch locking test ..................... 47 14.3 EVSE programmable autotest .................

  • Page 4: Safety Warnings

    1. Safety warnings This instrument has been designed, manufactured, and tested according to IEC 61010- 1: Safety requirements for Electronic Measuring apparatus, and delivered in the best condition after passing quality control tests. This instruction manual contains warnings and safety procedures which have to be observed by the user to ensure safe operation of the instrument and to maintain it in safe condition.
  • Page 5 # WARNING • Do not use the instrument or test leads if any abnormal conditions, such as broken cover or exposed metal parts are noted. • First, firmly connect the test leads to the instrument, and then press the test switch. •...
  • Page 6 Measurement (overvoltage) category To ensure safe operation of measuring instruments, IEC 61010 establishes safety standards for various electrical environments, categorized as O to CAT IV, and called measurement categories. Higher- numbered categories correspond to electrical environments with greater momentary energy, so a measuring instrument designed for CAT III environments can endure greater momentary energy than one designed for CAT : Measuring circuits without a MEASUREMENT CATEGORY CAT II...

  • Page 7: Features

    2. Features KEW 6514BT is a versatile multifunction tester offering the following electrical measurements. 1．Insulation resistance measurement 2．Voltage measurement 3．Continuity measurement 4．Earth resistance measurement 5．Phase rotation check 6．RCD test (measures RCD trip time and Ramp) 7．EVSE (EV charger) test • Each function has the following features.
  • Page 8 RCD test Auto test ×1/2, ×1, and Ramp test are automatically performed in sequence. EV charger check Max charging current and CP STATE (connection state CP signal between EV charger and EV) are displayed by measuring CP measurement signal (communication signal between EV charger and EV). Measures the resistance of built-in monitoring resistor for Latch locking test checking the latch switch of the charging cable for EV charger...

  • Page 9: Specifications

    3. Specifications 3.1 Measuring range and accuracy (23℃±5℃ , 45%-75%RH) (1) Insulation resistance measurement Rated measurement 100V 125V 250V 500V 1000V voltage Range 2/20 MΩ 2/20/200 MΩ 2/20/200/1000 MΩ 2/20/200/2000 MΩ (Auto-ranging) 2 MΩ: 0.000-2.099 MΩ 20 MΩ:1.60-20.00 MΩ 20 MΩ: 1.60-20.99 MΩ Display range 200 MΩ: 16.0-200.0 MΩ...
  • Page 10 (3) Voltage Range (Auto-ranging) 300.0/ 600 V Voltage: 2.0-314.9 V, 240-600 V Display range Frequency: 40.0-70.0 Hz (2 V or higher) Measuring range Voltage: 2-600 V (guaranteed accuracy) Frequency: 45-65 Hz Voltage: <2.0 V, >600 V Over-range indication Frequency: <40.0 Hz, >70.0 Hz Voltage: ±2%rdg±4dgt Accuracy Frequency: ±0.5%rdg±2dgt...
  • Page 11 (6) Loop 2W (2-Wire loop impedance test) 85-260 V (50/ 60 Hz) Input voltage range (Frequency display range: 45-65 Hz) Range (Auto-ranging) 200.0/ 2000 Ω 200.0Ω: 0.0-209.9 Ω Display range 2000Ω: 210-2000 Ω Measuring range 0-2000 Ω (guaranteed accuracy) Over-range indication >2000 Ω...
  • Page 12 (9) EV charger check 1. CP signal measurement Range 15.0V Voltage Vtop:2.0 V to 15.0 V Voltage Vbase：-15.0 V to -2.0 V, ---, -V* Frequency：DC* , 10 to 1100 Hz Display range Duty：10.0% to 96.0% : In case of DC, “---,-V” is displayed for Vbase. : The LCD shows “DC”...

  • Page 13: Possible Number Of Measurements Within The Effective Battery Voltage

    2. EV/ Latch locking Measuring range and accuracy are the same as for continuity measurement. Lock/ unlock state is judged by the measured resistance and the result is displayed on the LCD as follows. Status Resistance range Judgement The LCD shows “✓” symbol when the resistances Lock 135 Ω-165 Ω...

  • Page 14: Operating Uncertainty

    Nominal system voltage 100 V/ 230 V/ 400 V 50 Hz/ 60 Hz Operating temp. & humidity range -10℃ to +50℃ 80％ RH or less (no condensation) Storage temp. & humidity range -20℃ to +60℃ 75％ RH or less (no condensation) External communication Bluetooth Ver 5.0 5160 V AC (50/ 60 Hz)/ 5 sec.
  • Page 15 (2) Operating uncertainty at continuity measurement (IEC 61557-4) 　　　　　　　　 Intrinsic uncertainty Influence of position (N/A since this is a digital tester.) Influence of supply voltage (until battery status indicator becomes empty Influence of temperature (0℃ -35℃ ) * Measuring range to keep the max. operating uncertainty (within ±30%) is 0.2 to 2000 Ω. (3) Operating uncertainty at earth resistance measurement (IEC 61557-5) 　　　　　　　　...
  • Page 16 (5) Operating uncertainty at RCD measurement (IEC 61557-6) 　　　　　　　　 Intrinsic uncertainty Influence of position (N/A since this is a digital tester.) Influence of supply voltage (until battery status indicator becomes empty Influence of temperature (0℃ -35℃ ) Influence of probe resistance Influence of system voltage * Probe: An additional earth electrode used as a probe for sampling potentials during measurement...

  • Page 17: Instrument Layout

    4. Instrument layout Fig. 4-1 Name Description (1) Test switch Press to start a measurement. Hold down and turn the switch clockwise to lock it in the operating position. (2) POWER switch/ A long press (1 sec. or longer) turns on/ off the instrument. ESC switch A short press (less than 1 sec.) works as an ESC switch and return to the previous screen.
  • Page 18 Input terminal Fig. 4-2 Function Terminal (1) Measurement LINE: Line terminal terminal for Insulation, EARTH(PE): Protective earth terminal Continuity, RCD, and NEUTRAL: Neutral (Neutral line) terminal Voltage (2) Terminal for phase L1: Line 1 (R) terminal rotation L2: Line 2 (S) terminal L3: Line 3 (T) terminal (3) Terminal for earth H(C): Auxiliary earth electrode (current pole) terminal...

  • Page 19: Accessories

    5. Accessories ● Test lead (1) Test leads with remote-control switch MODEL 7281 　 Extension prod long MODEL 8017B * 1 Protective fingerguard Metal tip Attach the supplied detachable Insulation cap cap as necessary. For CAT III 600 V / CAT IV 300 V (w/ cap) For CAT II 1000 V (w/o cap) Extension prod long MODEL 8017B For CAT II 300 V (w/ M-8017B)
  • Page 20 (3) Earth resistance test leads MODEL 7228A (for precision measurement) Green cable E, 5 m Yellow cable S(P), 10 m Red cable H(C), 20 m Fig. 5-3 (4) Auxiliary earth spikes MODEL 8041 Fig. 5-4 • The other accessories (1) Soft case MODEL 9084 × 1 (2) Carrying case MODEL 9142 ×...
  • Page 21 Symbols Battery status indicator Indicates that a measurement is in progress. Live circuit warning displayed when 30 V or higher is applied to the instrument. (Resistance, Continuity/ Insulation / Earth resistance Function) * Except for LOOP 2W function. Indicates total judgment result on EVSE or latch locking tests. ： M easured values at latch locking/ unlocking are both within the criteria of judgement.
  • Page 22 Appears at any of the following cases: ● On RCD function, the RCD to be tested tripped before starting a measurement. The preset IΔn value might be incorrect. ● On Phase rotation function, voltage/ frequency of the input voltage exceeds the measuring range. ●...

  • Page 23: Setup

    6. Setup ● Settings of the following items can be made on the SETUP MENU. (1) LANGUAGE .... : Language selection (2) TIME ......: Clock (time and date) adjustment (3) LCD CONTRAST ..: LCD contrast adjustment (4) LCD BACKLIGHT ..: LCD backlight brightness adjustment (5) AUTO MEMORY ..

  • Page 24: Getting Started

    7. Getting started 7.1 Attachment of metal tip/ adapter to test leads The following metal tips and adapters are user-changeable depending on measurement purposes. (1) MODEL 7281 The following metal tips are available. 1. Standard metal tip: installed at a shipment and supplied with a detachable insulation cap.

  • Page 25: Battery Voltage Check

    7.2 Battery voltage check (1) Please refer to “18.1 Battery replacement” in this manual and insert batteries in the instrument. (2) Hold down the POWER switch (at least 1 sec.) to turn on the instrument. (3) Check the battery status indicator displayed at the upper right corner of the LCD. Normal.

  • Page 26: Insulation Resistance

    8. Insulation resistance To inspect the insulation performance of electrical equipment or circuit, use this instrument and measure the insulation resistance of them. Check the voltage rating of the circuit to be measured before making measurement and select the voltage applied to. •...
  • Page 27 (1) Press the POWER switch and turn on the instrument. Turn the rotary switch and set to insulation resistance function position. The insulation resistance function of this instrument is divided into the following two functions according to the output voltages. •...

  • Page 28: Continuous Measurement

    Fig. 8-6 SPD test Connection diagram (8) Auto discharge This function allows electric charges stored in the capacitance of the circuit under test to be automatically discharged after measurement. Set the test switch or remote- control switch to OFF with the test leads connected. Discharge status can be checked with the blinking “LIVE”...

  • Page 29: Dar/ Pi Measurement, 1-Min Value Display

    125V range 1000V range 100V range 500V range 50V range 250V range 25V range Fig. 8-7 Fig. 8-8 8.4 DAR/ PI measurement, 1-min value display The instrument can measure and calculate DAR (Dielectric Absorption Ratio) and PI (Polarization Index) values automatically during an insulation resistance measurement. The measured value one minute after the start of measurement can also be displayed.

  • Page 30: Spd

    8.6 SPD The SPD can measure the voltage (breakdown voltage) at which the surge protection device operates. Press the test switch or remote-control switch to start a measurement. The voltage between the L-PE terminal is increased from 0 V to 1000 V. The voltage, when current of 1 mA or more is detected between the L-PE terminal, is judged as a breakdown voltage.

  • Page 31: Voltage

    9. Voltage (1) Press the POWER switch and turn on the instrument. Turn the rotary switch and set to the “VOLTS” position. (2) Connect the test leads to the instrument as illustrated below. LINE terminal LINE EARTH NEUTRAL Distribution Board test lead, Red (MODEL 7247) EARTH terminal Distribution Board test lead, Green...

  • Page 32: Continuity

    10. Continuity # DANGER Do not apply external voltage to the instrument while performing measurements on continuity function. Always check the circuit under test is surely de-energized before starting a measurement. LINE (+) Principle of operation: Resistance = Voltage/Current RX = V/I Voltage (V) Resistance (RX) Current: I...
  • Page 33 (1) Press the POWER switch and turn on the instrument. Turn the rotary switch and set to the CONTINUITY position. (2) Connect the test leads to the instrument as illustrated below. L terminal Distribution Board test lead, Red (MODEL 7247) Test lead with remote-control switch (MODEL 7281) PE terminal Distribution Board test lead, Green (MODEL 7247)

  • Page 34: Comparator Function

    (6) Press the test switch and check the resistance value displayed on the LCD. If the measured value is greater than 2000 Ω, the symbol “>” (indicating exceeding the measuring range) will be displayed. # DANGER The measured results may be adversely affected by the impedance and transient current of the additional operating circuits connected in parallel.

  • Page 35: Earth Resistance

    11. Earth resistance With the earth resistance measurement function of this instrument, earth resistance of power distribution lines, in-house wiring system and electrical appliances can be measured. # DANGER • Be extremely careful when measuring earth resistance since high voltage, 50 V max is generated across H(C) –...

  • Page 36: Precision Measurement) And 2W (Simplified Measurement) Method

    (2) Measurement Principle of 2W (Simplified measurement) The measurement principle is basically the same as the precision measurement (3W), but the S(P) terminal is short-circuited with H(C) inside the instrument. This allows measurement to be made via the two poles: E and the H (C) terminals. (3) LOOP 2W (2-Wire loop impedance test) Make connection as the following figure shows so that current I1 flows between LINE-EARTH in the live circuit.
  • Page 37 H(C) H(C) terminal Distribution Board test lead, Red (MODEL 7247) Test leads with remote-control switch (MODEL 7281) E terminal Green Distribution Board test lead, Green (MODEL 7247) Fig. 11-5 Simplified measurement (2W method) Ensure that the test leads are firmly connected to each terminal. Loose connection may cause contact failure and lead to inaccurate readings.
  • Page 38 Indicated Secondary Primary Value Re side side Supply Transformer Be sure to check Earthed earthed side of a electrode commercial under test power supply. Where earth for mains supply is used. Rx = Re – re Rx: True resistance Fig. 11-7 Re: Indicated value re: Earth resistance of earth electrode # DANGER...

  • Page 39: Loop 2W Measurement Method (2-Wire Loop Impedance Test)

    11.3 LOOP 2W measurement method (2-Wire loop impedance test) This instrument can measure loop impedance between LINE-EARTH of live circuit. This measurement is suitable for circuits which don't have neutral wires and cannot be measured with simplified measurement since this measurement uses just LINE and EARTH terminals.

  • Page 40: Comparator Function

    (4) Connect the test leads to the circuit under test as illustrated below. Connect the LINE terminal to either L1 or L2 of the circuit under test, whichever is ok. LINE EARTH EARTH LINE Fig. 11-10 (5) When connection completes, check the wiring check symbol on the LCD. If the symbol indications don't match Fig.

  • Page 41: Phase Rotation

    When performing motor rotation test, confirm that no voltage is applied to the measured object (motor) before starting measurement. KEW 6514BT can check phase rotation of live circuit; in addition, it has motor rotation test function to judge the phase rotation by the voltage, which is generated by turning the motor manually.
  • Page 42 (4) Connect the test leads to the circuit under test. (Fig. 12-3, Fig. 12-4) For motor rotation check, run the motor by hands when connection is properly done. Fig. 12-3 Phase rotation check Fig. 12-4 Motor rotation check (5) Check result is displayed as follows. Fig.

  • Page 43: Rcd

    13. RCD 13.1 Measurement principle This instrument uses a constant current circuit to allow leakage current to flow between LINE-NEUTRAL and trip RCDs. It is also possible to use earth to pass the leakage current to the earth. • At the operating time measurement, the instrument measures the time from the start of leakage current flowing to RCD trip and display the result on the LCD.
  • Page 44 (3) Press the F2 switch to set the rated residual current IΔn. (4) Press the F3 switch to select the phase to apply measurement current. (5) Connect the test leads and instrument as follows. LINE EARTH LINE terminal Distribution Board test lead, Red (MODEL 7247) EARTH terminal Distribution Board test lead, Green...
  • Page 45 Connection using EARTH (earth electrode or protective conductor) SOURCE Connect the EARTH terminal of the instrument to the EARTH (earth electrode or protective conductor) and LINE terminal to the LINE of the LINE load side of RCD. EARTH EARTH LOAD # DANGER Extra caution should be taken when applying Fig.
  • Page 46 Trip time varied depending on the type of RCDs and the time shall complies with the following table. The standard values of tripping time defined by IEC 61009 and IEC 61008 are listed in the table below for IΔn and 5IΔn. Type of RCD IΔn(×1) 5IΔn(×5)

  • Page 47: Auto Test

    13.3 Auto test Auto test is a function to perform ×1/2, ×1, and Ramp test automatically. Follow the following procedure to perform the auto test. (1) Press the F1 switch and select “AUTO”. (2) Press the F2 switch and select “IΔn” (rated residual current). (3) Press the F3 switch and select the phase to apply measurement current first.

  • Page 48: Ev Charger (Evse Function)

    14. EV charger (EVSE function) Various tests required for electric installation can be performed on only one function (EVSE function). The performable measurements are not only insulation resistance, voltage, earth resistance, and RCD but also CP signal and latch lock measurement specially required for EV chargers.

  • Page 49: Cp Signal (Cp)

    14.1 CP signal (CP) CP is the control pilot signal (or called as CP signal) for bi-directional communication between EV and EV charger. This signal is a square wave or pure sine waveform with frequency of 1 kHz. This instrument judges and indicates the max. charging current and CP STATE (EV state) according to the amplitude (max.

  • Page 50: Latch Locking Test

    • CP STATE is categorized in four states. If Vtop and Vbase voltage values don't fall within any of the CP STATE range, the LCD shows ”---“ instead of CP STATE. Electric vehicle not connected Electric vehicle connected Electric vehicle connected, ready to charge (ventilation not required) Electric vehicle connected, ready to charge (ventilation required)
  • Page 51 (4) Press the F4 switch and select “AUTO” or “MANUAL” . At the latch locking test, resistance of the circuit under test is measured in order: when the latch switch is locked and then unlocked. • When selecting “AUTO”, the instrument starts measurement automatically: there's no need to press the test switch.

  • Page 52: Evse Programmable Autotest

    • Auto test starts when the following conditions are satisfied. * when the resistance varies ±50 Ω or more from the resistance value measured at the lock of latch switch, or * when there's no variation of ±50 Ω or more for 10 seconds. 14.3 EVSE programmable autotest It is possible to program the combination and sequence of six types of measurements which are available on EVSE function and perform a series of tests as programmed.

  • Page 53: Memory Function

    15. Memory function Measured results on each function can be saved in the internal memory. (1000 results max.) Data can be saved by either of the following two methods. (1) Manual data save : Press the MEM switch after a measurement and save the data.

  • Page 54: Auto Memory Function

    Press the ENTER switch and highlight the DATA No., and then press the F1(▲) or F2(▼) switch to change the DATA No. and confirm it with the ENTER switch. The selectable DATA No. is from 000 to 999. (4) Press the F4 or MEM switch to save the data. 15.2 Auto memory function With this function, measured results are automatically saved in the internal memory.

  • Page 55: How To Recall Save Data

    15.3 How to recall save data Measured data can be recalled according to the following procedures. (Press the ESC switch to return to the previous screen.) (1) Hold down (1 sec. or longer) the MEM switch in the stand-by mode. (Fig. 15-4) The LCD shows the list of the save data.
  • Page 56 (3) To delete all data, follow the step (1) described in “How to recall save data” and display the list of save data on the LCD. Press the F4 switch. Then the following confirmation message is displayed on the LCD. Another press of the F4 switch deletes all data. To cancel the deletion, press the ESC switch while the confirmation message is being displayed and return to the previous screen.

  • Page 57: How To Transfer The Save Data

    16. How to transfer the save data The internal memory data can be transferred to PC by using USB adapter MODEL 8212USB or via Bluetooth communication. Fig. 16-1 MODEL 8212USB The saved data can be transferred by either of the following methods. 1.

  • Page 58: Bluetooth Communication Function

    17. Bluetooth communication function 17.1 Bluetooth communication This instrument has a Bluetooth communication function and can perform data communicate with Android/ iOS tablet devices. Before starting to use this function, install the special application "KEW Smart Advanced" in your tablet device. Then you can check the measurement result not only on site but also in a remote place.

  • Page 59: Feature Of Kew Smart Advanced

    The latest information about "KEW Smart Advanced" can be checked with the site on Google Play Store or App Store. • Settings of KEW 6514BT It is possible to change various settings: ON/ OFF of each function, limitation of measurement function, and reference value of comparator function.

  • Page 60: Battery And Fuse Replacement

    18. Battery and fuse replacement # DANGER • Do not open the battery compartment cover if the instrument is wet. • Do not replace batteries during a measurement. To avoid getting electrical shock, power off the instrument and disconnect all test leads before replacing batteries or fuse.
  • Page 61 Screw Spare fuse Fuse Fig. 18-1...

  • Page 62: Strap Belt Assembly

    Attach the strap belt according to the following procedures. By hanging the instrument around the neck, both hands will be left free for testing. (1) Attach the Buckle to KEW 6514BT as shown in Fig. 19-1. Match the hole of the Buckle and the protrusion at the side face of KEW 6514BT and slide it upwards.
  • Page 64 DISTRIBUTOR Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations. 02-24 92-2453 02-24 92-2453...