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Kyoritsu Electrical Instruments Works KEW 6516 Instruction Manual

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INSTRUCTION MANUAL
MULTI-FUNCTION TESTER
KEW 6516 / 6516BT

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  • Page 1 INSTRUCTION MANUAL MULTI-FUNCTION TESTER KEW 6516 / 6516BT...

  • Page 2: Table Of Contents

    CONTENTS 1. Safe testing......................... 1 2. Instrument layout ......................3 3. Accessories ........................ 5 4. Features ........................7 5. Specification ....................... 9 5.1 Measurement specification ................... 9 5.2 General specification ..................14 5.3 Applied standards ....................15 5.4 Operating uncertainty ..................16 5.5 Symbols and marks displayed on the LCD............
  • Page 3 21. Servicing ........................66 22. Case and strap assembly ..................67 The KEW 6516/6516BT incorporates Anti Trip Technology (ATT) which electronically bypasses RCDs when performing loop impedance tests. This saves time and money by not having to take the RCD out of the circuit during testing and is a safer procedure to follow.

  • Page 4: Safe Testing

    ● Do not apply voltages above 600V, including voltage to earth, across the terminals of this instrument. ● KEW 6516/ 6516BT are rated to CAT IV 300V/ CAT III 600V. Do not make measurements under the circumstances exceeding the designed measurement categories.
  • 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: Instrument Layout

    2. Instrument layout Fig.2-1 Item Description (1) Test switch Starts measurements. (Press and rotate for lock down feature.) (2) Touch pad Checks the electrical potential at the PE terminal (3) Power switch A long press turns on/ off the instrument. (A short press works as an ESC switch to return to the previous screen.) (4) Function switch...
  • Page 7 Input Terminal Fig.2-2 Function Terminal Terminals for : L : Line INSULATION, CONTINUITY PE : Protective Earth LOOP, RCD, N : Neutral (for LOOP, RCD) VOLTS L1 : Line1 Terminal for L2 : Line2 PHASE ROTATION L3 : Line3 H(C) : Terminal for auxiliary earth spike (current) (3) Terminal for EARTH E : Terminal for the earth under test S(P) : Terminal for auxiliary earth spike (potential)

  • Page 8: Accessories

    3. Accessories ●Test leads (1) Mains Test Lead (Model 7218A) Red (Line) Green (Protective Earth) Blue (Neutral) Fig.3-1 Fig. 3-1 shows Model 7218A with European SHUKO plug: plug shape varies depending on the country or region. Any of the following test leads is selected and packed according to destination.
  • Page 9 (7) Spare Fuse F 0.5A 600V (Φ6.3 x 32mm)･･･ x1 (SIBA 7009463.0,5)   *Stored in the battery compartment. (8) Model 8212USB with PC Software KEW Report . (Standard accessory for KEW 6516, optional for KEW 6516BT) Fig.3-6 ・Optional item (1) Extension prod Model 8017A * Attached and used with Model 7281.

  • Page 10: Features

    4. Features The KEW 6516/ KEW 6516BT Multi-Function tester has eight test functions in one instrument. 1 Continuity test 2 Insulation resistance test 3 Loop impedance test (High current measurement, No trip (ATT) measurement) 4 Prospective short circuit current test (On Loop impedance function)
  • Page 11 RCD testing functions have the following features: RCD Type B test Capable of testing Type B RCDs of dc residual current. VAR(variable test current) Test current is variable on RCD range. Auto-test in the following sequence: ×1/2(0°)→×1/2(180°) RCD AUTO TEST →...

  • Page 12: Specification

    5. Specification 5.1 Measurement specification VOLTS Range 300.0/600V (Auto-ranging) Voltage: 2.0 – 314.9V, 240 – 629V Display range Frequency: 40.0 – 70.0Hz (displayed at 2V or higher) Measuring range Voltage: 2 – 600V (Guaranteed accuracy Frequency: 45 – 65Hz range) Voltage: ±2%rdg±4dgt Accuracy Frequency: ±0.5%rdg±2dgt...
  • Page 13 CONTINUITY Range 20.00/200.0/2000Ω (auto-ranging) 0.00 - 20.99Ω Display range 16.0 - 209.9Ω 160 - 2099Ω Measuring range 0 – 2000Ω (Guaranteed accuracy range) Accuracy (NULL enabled) ±2.0%rdg±8dgt Open-circuit voltage (DC) 7 – 14V 200mA test: 200mA or more (2Ω or less) Test current 15mA test: 15mA±3mA (short-circuit) ●...
  • Page 14 (2) SPD test Range 1000V Display range 1049V Measuring range 0 - 1049V Accuracy ±5%rdg±5dgt Voltage increase rate 100V / sec. Voltage increase step Increases by 1V. Threshold value for current detection LOOP ATT Function 3-Wire L-PE 2-Wire L-PE Mains input 100 –...
  • Page 15 LOOP HIGH Function L-PE0.01ΩRes L-PE0.001ΩRes L-N/L-L Mains input 48 - 260V 100 - 260V 48 - 500V voltage range 50/60Hz 50/60Hz 50/60Hz LOOP 20.00/200.0/2000Ω 2.000Ω 20.00Ω Range 2000A/20kA 2000A/50kA 2000A/20kA PFC/PSC (PFC only) (PFC only) (PSC only) 0.00 - 20.99Ω LOOP 21.0 - 209.9Ω...
  • Page 16  The test of "X5" will be skipped when a current is 100mA or higher.  At the auto-test for Type EV, additional 6 mA DC test is performed. Current waveform of KEW 6516/6516BT ・Type AC: Test current is sine wave. ・Type A and F: Test current is half sine wave.

  • Page 17: General Specification

    (3) Uc(RCD) Mains input voltage range 100-260V Range 100V Display range 0.0 - 104.9V Measuring range 0 - 100V (Guaranteed accuracy range) Accuracy +5% to+15%rdg±8dgt @230V Test current 50 % or less of IΔn Possible number of tests with fresh batteries. CONTINUITY : Approx.

  • Page 18: Applied Standards

    5.3 Applied standards Instrument operating IEC61557-1,2,3,4,5,6,7,10 Standard IEC 61010-1, -2-030, -2-034 CATIII (600V) CATIV (300V) -Instrument IEC 61010-031 Model 7218A…CAT II 250V Model 7246 …CATIII 600V/ CATIV300V Model 7228A…CATIII 300V Model 7281 …CATIII 600V/ CATIV300V (w/ cap) Safety standard …CAT II 1000V (w/o cap) …CAT II 1000V (w/ 8017A) ( Attach the supplied protective cap to use this test leads in CAT III or higher environments.)

  • Page 19: Operating Uncertainty

    O (None, other) : Circuits which are not directly connected to the mains power supply. CAT II : Electrical circuits of equipment connected to an AC electrical outlet by a power cord. CAT III : Primary electrical circuits of the equipment connected directly to the distribution panel, and feeders from the distribution panel to outlets.
  • Page 20 Loop Impedance (EN61557-3) Operating range compliant Maximum percentage Function with EN61557-3 operating operating uncertainty uncertainty L-PE 0.01Ω Res 0.40 to 2000Ω HIGH L-PE 0.001Ω Res 0.400 to 1.999Ω L-N/L-L 0.40 to 20.00Ω ±30% 2Wire 1.00 to 20.00Ω 3Wire 0.40 to 2000Ω The influencing variations used for calculating the operating error are denoted as follows;...

  • Page 21: Symbols And Marks Displayed On The Lcd

    5.5 Symbols and marks displayed on the LCD Battery level indicator Temperature monitor for internal resistance, available at Loop, RCD function. Further measurements are suspended until the " " symbol disappears. Measurements in progress Live circuit warning (Continuity / Insulation / Earth Function) Live Circuit Caution: Presence of 100V or more at PE terminal, appears PE Hi V...

  • Page 22: Setup Mode

    6. Setup mode Enter in the SETUP mode to make settings of the instrument. The following settings are changeable. (1) LANGUAGE ....Language selection (2) TIME ......Clock adjustment (3) LCD Contrast .... LCD contrast adjustment LCD (4) LCD Backlight ... LCD backlight brightness adjustment LCD (5) UL value ....

  • Page 23: Getting Started

    7. Getting started 7.1 Attaching metal tip/ adapter for test leads The following metal tips and adapters are user-changeable depending on measurement purposes. (1) For Model 7281 The following metal tips are available. 1. Standard metal tip Installed at a shipment supplied with a detachable insulation cap.

  • Page 24: Battery Voltage Check

    7.3 Clock adjustment Clock KEW 6516/ 6516BT has clock function. Time is displayed in the upper right corner of the LCD. Time display format: Day/ Month/ Year / Hour: Min Enter the SETUP mode to adjust clock.

  • Page 25: Help Function

    7.4 Help function With this function, correct connection for each test can be displayed on the LCD. To check a connection diagram; (1) Make settings of measurement parameters on each function, hold down HELP (ENTER) switch 1 sec. (2) Then the LCD shows a connection diagram. Fig.7-5 Connection diagram example (3) When several connections are available, press F1 switch to toggle the diagrams.

  • Page 26: Continuity (Resistance) Tests

    Fig.8-1 Proceed as follows: (1) Select the continuity test by turning the rotary switch. (2) Insert the test leads to the L and PE terminals on KEW 6516/ 6516BT respectively as shown in Fig.8-2. L terminal Red cord of Model 7246, or...
  • Page 27 Fig.8-3 (4) Press the F1(NULL) switch, this will null out the lead resistance and the indicated reading should go to zero. (5) Release the test switch. Press the test switch and ensure the display reads zero before proceeding. While using the Continuity null function, "NULL ON" is displayed on the LCD as indicated in Fig.8-3.

  • Page 28: Buzzer ( ) Function

    2Ω or less while this function is enabled. The buzzer does not sound if it is disabled. 8.3 Switching test currents KEW 6516/ 6516BT can perform continuity test at 200mA and also 15mA. Press F4 switch to switch the current between 200mA and 15mA. 8.4 Pat function PAT function is available to do continuity test for portable appliances, (1) Press F3 to select the criteria value for PAT test.
  • Page 29 (2) Make connections as Fig. 8-6 shows to check continuity. At a PAT testing, "✓" or "X" will be displayed next to the reading to show PASS/ FAIL. Fig.8-6...

  • Page 30: Insulation Tests

    9. Insulation tests This instrument is used to measure insulation resistance of electric appliance or circuit to inspect the insulation performance. Check the voltage rating of the object to be tested before making measurement and select the voltage applied to. ●...

  • Page 31: Measurement Method

    (3) Press F2 switch and select the desired voltage range. (When selecting SPD test, the range is fixed to 1000V.) (4) Insert the test leads to the L and PE terminals on KEW 6516/ 6516BT respectively as shown in Fig. 9-2.
  • Page 32 Fig.9-4 Fig. 9-5 SPD(VARISTOR) test connection (6) If the "Live Circuit" warning is displayed on the LCD and/or the buzzer sounds, do not press the test switch but disconnect the instrument from the circuit. Make the circuit dead before proceeding. (7) Press the test switch, the display will show the insulation resistance of the circuit or the appliance to which the instrument is connected.

  • Page 33: Continuous Measurement (Insulation Resistance Measurement)

    Fig.9-6 9.2 Continuous measurement (Insulation resistance measurement) For continuous measurement, use the lock-down feature incorporated in the test switch. Press and turn the test switch clockwise to lock the switch in operating position; to unlock the switch, turn it counter-clockwise. # DANGER Be extremely careful not to touch the tips of test leads to avoid getting electrical shock since high voltage is present continuously.

  • Page 34: Dar/ Pi Measurement, 1-Min Value Display

    9.4 DAR/ PI measurement, 1-min value display DAR (Dielectric Absorption Ratio) and PI (Polarization Index) are automatically measured during insulation resistance measurement. When measurement time elapsed: - 1 min: LCD shows DAR value. - 10 min: LCD shows PI value. The LCD shows the measured value, after 1 min has passed since the start of measurement.

  • Page 35: Spd(Varistor) Test

    9.6 SPD(Varistor) test SPD test can measure a voltage which breakdowns surge protective device(varistor). When the test gets started, the voltage KEW 6516/6516BT outputs automatically increases from 0 V until the SPD breakdowns and the LCD shows the voltage value.

  • Page 36: Loop/ Psc/Pfc

    The KEW 6516/6516BT takes a current from the supply and measures the difference between the unloaded and loaded supply voltages. From this difference it is possible to calculate the loop resistance.
  • Page 37 According to the International Standard IEC 60364, for TT systems the characteristics of the protective device and the circuit resistance shall fulfill the following requirements: Ra x Ia ≤ 50V Where: Ra is the sum of the resistances in Ω of the local earth system and the protective conductor for the exposed conductive parts.
  • Page 38 In this example, the max permissible value is 1667Ω (RCD =30mA and contact voltage limit of 50V). The instrument reads 12.74Ω, thus the condition RA ≤ 50/Ia is respected. However, considering that the RCD is essential for protection, it must be tested (Please refer to RCD TESTS section).
  • Page 39 Loop impedance and the Zs limit of the table. Note : Applicable Zs limit table varies country by country. KEW 6516/ 6516BT automatically shows the appropriate Zs limit table corresponding to the selected language.
  • Page 40 Max value of Zs for this example is 1.44Ω (MCB 16A, characteristic C), the instrument reads 1.14Ω (or 202A on Fault current range) it means that the condition Zs x Ia ≤ Uo is respected. In fact the Zs of 1.14Ω is less than 1.44Ω (or the Fault current of 202A is more than Ia of 160A).

  • Page 41: Measurement Method For Loop High Current

    10.2 Measurement method for LOOP high current LCD display and function switches Switches measurement mode: L-PE or L-N/L-L Selects resolution 0.01Ω or 0.001Ω (In case of L-PE) F3 Selects test lead (0.001ΩRes) F4 Limit value setting LOOP limit value Measured value PFC or Mains voltage PSC value...
  • Page 42 (4) Press F4 switch to enter the setting mode for limit value. Please refer to "10.4 Loop limit value". (5) Connection Connect KEW 6516/ 6516BT to the distribution system to be tested with reference to Fig. 10-12, 10-13, 10-14, and 10-15. (6) Wiring Check After the connection, ensure that the symbols for Wiring check on the LCD are in the status indicated in Fig.10-10 before pressing the test switch.
  • Page 43 (7) Test lead selection (L-PE0.001ΩRes) In case of L-PE0.001ΩRes, use F3 switch to select the test lead to be used. When 0.001ΩRes, the resistance of the test lead to be used affects the measured result; therefore, test lead selection is effective to reduce errors in results. Select either Model 7218A Mains test lead or Model 7246 (Distribution board test lead).
  • Page 44 Fig. 10-13 Connection for distribution Fig. 10-14 Connection for Line – Neutral measurement Fig. 10-15 Connection for Line – Line measurement...

  • Page 45: Measurement Method For Loop Att (Anti Trip Technology)

    The test switch may be pressed down and turned clockwise to lock it for auto-test. In this auto mode, when using distribution board lead Model 7246, tests are conducted by simply disconnecting and reconnecting the red phase prod of the Model 7246 avoiding the need to physically press the test switch i.e.
  • Page 46 (5) Press F4 switch to enter the setting mode for limit value. Please refer to "10.4 Loop limit value". (6) Connection Connect KEW 6516/6516BT to the distribution system to be tested with reference to Fig. 10-20, 10-21 and 10-22. (7) Wiring Check After the connection, ensure that the symbols for Wiring check on the LCD are in the status indicated in Fig.10-19 before pressing the test switch.
  • Page 47 When the instrument is first connected to the system, it will display the line-earth voltage (mode L-PE) which is updated every 1s. If this voltage is not normal or as expected, DO NOT PROCEED. (8) Measurement Press the test switch. A beep will sound as the test is conducted and the value of loop impedance will be displayed.
  • Page 48 Fig. 10-22 L-PE 2-wire test ● ATT mode enables a measurement without tripping the RCDs with the rated residual current of 30mA or more. ● Measurement in ATT mode requires longer time than that is required for the other measurements (approx. 8 sec). When measuring a circuit with a large electrical noise, the 'Noise' Message is displayed on the LCD and the measurement time will be extended.

  • Page 49: Loop Limit Value

    ● Measured result may be influenced depending on the phase angle of the distribution system when making measurement near a transformer and the result may lower than the actual impedance value. Errors in measured result are as follows. System Phase Difference Error (approx.) 10°...
  • Page 50 Selectable parameters and reference values for limit value are as shown below. ●Loop Limit value for fuse protection Protection gG Fuse Type TIME 0.4s 0.4 & 5s 0.4s 0.4s 0.4s 5Ω 8.84Ω 7.67Ω 3.83Ω 7.67Ω 1.92Ω 3.83Ω 2.73Ω 2.87Ω 5Ω 4.6Ω...

  • Page 51: Rcd Tests

      Tests of RCD type F with F KEW 6516/6516BT use halfwave rectified current as same as testing Type A RCD. RCD type B can detect residual sinusoidal alternating currents up to 1000 Hz, ●...
  • Page 52 However, it is also good practice to consider even more stringent trip time limits, by following the standard values of trip times at IΔn defined by IEC 61009 (EN 61009) and IEC 61008 (EN 61008). These trip time limits are listed in the table below for IΔn and 5IΔn: Type of RCD IΔn...

  • Page 53: Principles Of Uc Measurement

    Practical example of RCD test with distribution leads. Fig. 11-3 11.2 Principles of Uc measurement Ground being imperfect in the Fig. 11-1, when R exists, when a fault current flows to R, electric potential occurs. There is a possibility the person contacting in this imperfect ground, it calls the voltage, which it occurs in the human body of this time, called Uc.
  • Page 54 (2) Connect the test lead to the instrument. (Fig. 11-5) At AC/ A/F measurement, no need to use N terminal. GREEN BLUE Fig. 11-5 For RCD test (3) Press the F1 switch and select any desired measurement mode. X1/2 For testing RCD to verify that they are not too sensitive. For measuring the trip time.
  • Page 55 When the instrument is connected to the system for the first time, it will display the line- earth voltage (mode L-PE) which is updated every 1s. If this voltage is not normal or as expected, DO NOT PROCEED. NOTE: This is a single phase (230V AC) instrument and under no circumstances should it be connected to 2- phases or a voltage exceeding 230VAC+10%.

  • Page 56: Auto Test

    Fig. 11-7 11.5 VAR (variable current value) function At RCD test with KEW 6516/6516BT, any I∆n value – between 10mA and 1000mA - is selectable. However, X5 test or depending on the selected RCD test settings, variable range of current value will be limited.

  • Page 57: Ev Rcd

    11.6 EV RCD When selecting EV for RCD TYPE, the instrument can test RCDs for EV charger which trip by 6 mA DC: x1, RAMP( ), and AUTO TEST are selectable. ● At RAMP, current is steadily increased up to 6 mA DC (100%). When it reaches to 6 mA DC, the current is kept for 10 sec.

  • Page 58: Measurement Method For Earth

    12.3 Measurement method for earth (1) Press the Power switch and turn on the instrument. Turn the rotary switch and set it to the EARTH position. (2) Press F1 switch to select 3W (3-wire precise measurement) or 2W (2-wire simplified measurement).
  • Page 59 2W test (Simplified measurement) Use this method when the auxiliary earth spike cannot be stuck. In this method, an existing earth electrode with a low earth resistance, such as a metal water pipe, a common earth of a commercial power supply and an earth terminal of a building, can be used with two-pole method.

  • Page 60: Phase Rotation Tests

    13. Phase rotation tests 1. Press the Power switch and turn on the instrument. Turn the rotary switch and select the PHASE ROTAION function. 2. Insert the test leads into the instrument. (Fig.13-1) GREEN BLUE Fig.13-1 3. Connect each test leads to a circuit. (Fig.13-2) Fig.13-2 4.

  • Page 61: Volts

    14. Volts (1) Press the Power switch and turn on the instrument. Turn the rotary switch and select the VOLTS function. (2) Insert the test leads into the instrument. (Fig.14-1) GREEN BLUE Fig.14-1 (3) Voltage value and frequency will be displayed on the LCD when applying AC voltage. Note : A message "DC V"...

  • Page 62: Memory Function

    16. Memory function Measured result at each function can be saved in the memory of the instrument. (MAX: 1000) 16.1 How to save the data Save the result according to following sequence. (Press ESC switch during the process to one step back.) (1) When measurement is done, press MEM switch to enter the save mode.

  • Page 63: Recall The Saved Data

    16.2 Recall the saved data Save data can be displayed on the LCD according to the following sequence. (Pressing ESC switch during the adjustment can one step back.) (1) Hold down MEM switch 1 sec in stand-by mode enters RECALL mode and the LCD shows a list of the save data.

  • Page 64: Delete The Saved Data

    16.3 Delete the saved data (1) To delete the saved data: Press F3 switch in the state as Fig. 16-5 shows to delete data. Confirmation message appears as shown below. Press F3 switch to delete data. Fig.16-7 (2) To delete whole data: Press F4 switch in the state as Fig.

  • Page 65: Transfer The Stored Data To Pc

    PC and set the communication port. Then click "Download" command, and the data in the KEW 6516/ 6516BT will be transferred to your PC. Please refer to the instruction manual of Model 8212USB and HELP of KEW Report for further details.

  • Page 66: Bluetooth Communication (Kew 6516Bt Only)

    18.1 Bluetooth communication KEW 6516BT has a Bluetooth communication function and can exchange data with Android/ iOS tablet devices. (Not available on KEW 6516.) Before starting to use this function, download the special application "KEW Smart *" via the internet.

  • Page 67: Kew Smart

    18.2 KEW Smart * The special application "KEW Smart *" is available on download site for free. (An Internet access is required.) Please note that communication charge is incurred separately for downloading applications and using special features of them. For your information, "KEW Smart *"...

  • Page 68: Battery And Fuse Replacement

    20. Battery and fuse replacement # DANGER ● Do not open the battery compartment cover if the instrument is wet. ● Do not replace batteries nor fuse during a measurement. To avoid getting electrical shock, power off the instrument and disconnect all test leads before replacing batteries or fuse.

  • Page 69: Servicing

    Screw Spare Fuse Fuse Fig.20-1 21. Servicing If this tester should fail to operate correctly, return it to your distributor stating the exact nature of the fault. Before returning the instrument ensure that: (1) The leads have been checked for continuity and signs of damage. (2) The continuity mode fuse (situated in the battery compartment) has been checked.

  • Page 70: Case And Strap 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 the KEW 6516/6516BT as shown in Fig.22-1. Match the hole of the Buckle and the protrusion at the side face of KEW 6516/6516BT and slide it upwards.
  • Page 72 DISTRIBUTOR Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations. 05-20 92-2385A...

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