KYORITSU 2062 Instruction Manual
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KYORITSU 2062 Instruction Manual

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Instruction Manual
CLAMP POWER METER
KEW 2062/2062BT

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Summary of Contents for KYORITSU 2062

  • Page 1 Instruction Manual CLAMP POWER METER KEW 2062/2062BT...

  • Page 2: Table Of Contents

    4.2 Battery level check ..................12 LCD indication/ Battery level indicator .............. 13 How to install batteries: ..................13 4.3 Test leads connection (to KEW 2062/2062BT) ..........14 4.4 Connection to the measured object ............... 14 Chapter 5 Settings ....................16 Item selection (Switch the displayed items) ............
  • Page 3 KEW 2062/2062BT Contents Chapter 7 Other functions ..................37 [Data hold function] ................... 37 [Auto-backlight-off] .................... 37 [Auto-power-off] ....................37 [Auto-ranging – current] ..................37 Chapter 8 Bluetooth communication............... 38 8.1 KEW Power*(asterisk) features ..............39 Chapter 9 Specifications ..................40 9.1 Safety specifications ..................

  • Page 4: Unpacking

    Unpacking KEW 2062/2062BT Unpacking We thank you for purchasing our clamp power meter KEW 2062 / KEW2062BT. Please check that the following accessories are packed with the instrument. [Basic package] KEW 2062 / KEW 2062BT : 1 pce. Clamp power meter...
  • Page 5 KEW 2062/2062BT Safety precautions Meaning of symbols on the instrument: User must refer to the explanations in the instruction manual. Instrument with double or reinforced insulation This instrument can clamp a bare conductor where the voltage to be measured is lower than the circuit – voltage against earth values specified by the marked measurement category.
  • Page 6 Safety precautions KEW 2062/2062BT DANGER ● The instrument is to be used only in its intended applications or conditions. Otherwise, safety functions equipped with the instrument will not work, and instrument damage or serious personal injury may occur. Verify proper operation on a known source before taking action as a result of the indication of the instrument.
  • Page 7 ● Verify proper operation on a known source before use or taking action as a result of indication of the instrument ● Do not install substitute parts or make any modification to the instrument. Return the instrument to your local KYORITSU distributor for repair or re-calibration in case of suspected faulty operation. CAUTION ●...

  • Page 8: Chapter 1 Functional Overview

    KEW 2062/2062BT Chapter 1 Functional overview KEW 2062 / 2062BT is an advanced clamp power meter that is able to analyze the harmonics for power quality check and verify phase sequences of power sources in various wiring systems: of course, it can perform voltage/ current (in RMS) and power measurements.

  • Page 9: Kew 2062/2062Bt Features

    KEW 2062 / 2062BT features KEW 2062/2062BT Chapter 2 Chapter 2 KEW 2062 / 2062BT features Current sensor ① ② Trigger (to open/ close the jaws) ⑫ ③ Barrier Provides protection against electrical shock and ③ ensuring the minimum required clearance and creepage distances.

  • Page 10: Chapter 3 Basic Operation

    Chapter 3 Basic operation KEW 2062/2062BT Chapter 3 Basic operation 3.1 Function switch Function Description Changes and confirms the settings for wiring, VT/ CT ratio, buzzer on/ off, backlight on/ off, nominal frequency 50/ 60Hz. To SETUP Settings restore all the settings to the default conditions, perform system reset.
  • Page 11 KEW 2062/2062BT 3.2 Buttons and switches Buttons and Function Details switches A short press toggles display: <-> active power, power factor Item switching <-> active power, voltage-current phase differences <-> button [◄►] active and apparent power <-> active and reactive power Power <->...

  • Page 12: Symbols Displayed In Lcd

    Chapter 3 Basic operation KEW 2062/2062BT 3.3 Symbols displayed in LCD Symbol Details Battery indicator: shows remaining battery in 4 levels. Bluetooth is available. (KEW2062BT only) LCD display update is held. Unbalance measurement has been selected. Nothing is displayed for balance measurement.

  • Page 13: Chapter 4 Getting Started

    KEW 2062/2062BT 3.4 Unit of measured value Chapter 4 Getting started 4.1 Turning on KEW 2062 / 2062BT Note ● If the instrument is in powered-off state, though the function switch is set to any measure- ment range, auto-power off function might be activated. Turn the function switch to OFF, and then set the switch to the desired position to wake up the instrument.

  • Page 14: Lcd Indication/ Battery Level Indicator

    LCD indication/ Battery level indicator KEW 2062/2062BT CAUTION ● Brand and type of the batteries should be harmonized. ● Never mix new and old batteries. ● Install batteries in correct polarity as marked inside the battery compartment area. LCD indication/ Battery level indicator...

  • Page 15: Test Leads Connection (To Kew 2062/2062Bt)

    ● Connect to the instrument first, firmly into the corresponding terminal. Connect the test leads per the following procedures. 1 Ensure that KEW 2062 / 2062BT is turned off. 2 Connect the test lead to AC voltage input terminal on the instrument.* * The number of test leads to be connected depends on the wiring configuration.
  • Page 16 ● Care should be taken so as not to pinch the conductors with the tips of the jaws. ● Confirm and harmonize the wiring configuration of the measurement line and KEW 2062 / KEW2062BT. ● When clamping onto a conductor, make the arrow mark point towards the load side;...

  • Page 17: Chapter 5 Settings

    KEW 2062/2062BT Chapter 5 Settings Chapter 5 Settings Before starting a measurement, adjust the following settings. * Wiring configuration, frequency of the voltage to be measured, and VT/ CT ratio, if necessary. Set the functin switch to “ ” to adjust settings.

  • Page 18: Wiring Systems

    * For Single-phase 3-wire(1P3W), please select “1P2W” (Single-phase 2-wire) and perform power measurement on each phase (L1/ L2) individually. KEW 2062 / 2062BT cannot show the total power of 1P3W.

  • Page 19: Measurement Using Vt/ Ct Ratio

    CAUTION ● When using a VT or CT, the declared measurement accuracy is not guaranteed. If using either or both of them, please take the accuracies of KEW 2062 / KEW2062BT, VT and CT, and also phase characteristics into consideration.

  • Page 20: Buzzer On/ Off

    Buzzer ON/ OFF KEW 2062/2062BT Buzzer ON/ OFF Keypad sounds, and phase detection buzzer can be muted. This setting doesn’t affect the low battery warning buzzer and the buzzer indicating auto-power-off is activated. Select “Buzzer” and press the mode button. Then “ON(on)”/ “OFF(oF) starts blinking. Now it is ready to change the setting.

  • Page 21: Frequency Of Nominal Voltage

    KEW 2062/2062BT Measurement using VT/ CT ratio Frequency of nominal voltage Set the power frequency of the object to be measured. Note ● Harmonics are calculated based on the preset frequencies. For accurate measure- ment, please check and set the same frequency as the power frequency of the object to be tested.

  • Page 22: Chapter 6 Display Items By Measurement Function

    6.1 RMS/ Frequency measurement KEW 2062/2062BT Chapter 6 Display items by measurement function 6.1 RMS/ Frequency measurement While viewing “Waveform” on your Smartphone or tablet device using our app via Bluetooth, KEW 2062BT’s LCD will be like the illustration shown to the right and won’t show the measured values.

  • Page 23: Rms Voltage, Frequency

    KEW 2062/2062BT RMS voltage, frequency Note ● When current is measuring current in PEAK mode, opening and closing operation of the current sensor affects the readings. To obtain accurate readings, check the readings while clamping onto the conductor to be tested or turn on the data hold function before unclamping the conductor.

  • Page 24: Single/ Three-Phase (Balance) Power Measurement

    KEW 2062/2062BT 6.2 Single/ Three-phase (balance) Power measurement Note ● KEW 2062 / 2062BT cannot measure Three-phase 4-wire with different capacitors (V/ ∆- connection). To measure such a system, please test phases individually. Set the function switch to “ ”.

  • Page 25: Connection Diagram For Balance Three-Phase 3-Wire (3P3W)

    KEW 2062/2062BT Connection diagram for balance Three-phase 3-wire (3P3W) Connection diagram for balance Three-phase 3-wire (3P3W) Connection diagram for balance Three -phase 4-wire (3P4W) KEW 2062/2062BT - 24 -...

  • Page 26: Switching Display

    Switching display KEW 2062/2062BT Switching display Item switching button [◄►]: Short press: switches measured values to be displayed in the LCD. Active power, power factor/ Active power, voltage-current phase difference/ Active, apparent powers/ Active, reactive powers/ RMS current, voltage values...

  • Page 27: Three-Phase (Unbalance) Power Measurement

    6.3 Three-phase (unbalance) power measurement 6.3 Three-phase (unbalance) power measurement Note ● KEW 2062 / 2062BT cannot measure Three-phase 4-wire with different capacitors (V/ ∆- connection). To measure such a system, please test phases individually. Set the function switch to “...
  • Page 28 Three-phase 3-wire (3P3W) unbalance KEW 2062/2062BT Clamp onto R(L1) phase While the LCD is showing the settings for the first measurement, make connection as the following figure shows. Press the item switching button [►] after making connection, the LCD shows active power of R(L1) phase.
  • Page 29 KEW 2062/2062BT Three-phase 3-wire (3P3W) unbalance Result display Item switching button [◄►]: Short press: switches measured values to be displayed in the LCD. Total active power Total active power Active power of R(L1) Active power of R(L1) Active power of T (L2) Active power of T (L2) ◀▶...

  • Page 30: Three-Phase 4-Wire (3P4W) Unbalance

    Three-phase 4-wire (3P4W) unbalance KEW 2062/2062BT Three-phase 4-wire (3P4W) unbalance Measurement procedures Clamp onto R(L1) phase Clamp onto S(L2) phase Clamp onto T(L3) phase Clamp onto R(L1) phase Clamp onto S(L2) phase Clamp onto T(L3) phase ▶ ▶ ▶ ▶...
  • Page 31 KEW 2062/2062BT Three-phase 4-wire (3P4W) unbalance Clamp onto R(L1) phase While the LCD is showing the 1st time measurement screen, make connection as the following figure shows. Press the item switching button [►] after making connection, the LCD shows active power of R(L1) phase.
  • Page 32 Three-phase 4-wire (3P4W) unbalance KEW 2062/2062BT Clamp onto T(L3) phase While the LCD is showing the 3rd time measurement screen, move the current sensor and red test lead to T(L3) as shown to the right. Press the item switching button [►] after making connection, the LCD shows active power of T(L3) phase.

  • Page 33: Harmonics Measurement

    KEW 2062/2062BT 6.4 Harmonics measurement 6.4 Harmonics measurement Set the function switch to ” ”. The nominal frequency is displayed as right figure at harmonics function. Nominal frequency can be set to 50Hz or 60Hz on SET UP function. (See P.19 “Frequency of nominal voltage”.)

  • Page 34: Voltage Harmonics Distortion Factor, Content Rate, Rms Value

    Voltage harmonics distortion factor, content rate, RMS value KEW 2062/2062BT [ Mode button ] A short press switches display mode between Inst, MAX, MIN, and AVG. Each of above values is determined after pressing the mode button and measurements get started.
  • Page 35 KEW 2062/2062BT Voltage harmonics distortion factor, content rate, RMS value [ Item switching button [◄►] ] A short press toggles the displayed measured values: RMS/ Harmonics distortion factor THD-F, RMS/ Harmonics distortion factor THD-R, Fundamental wave RMS/ content rate to 30th harmonics RMS/ content rate...

  • Page 36: Harmonics Distortion Factor Thd-R/ Thd-F

    Harmonics distortion factor THD-R/ THD-F KEW 2062/2062BT Harmonics distortion factor THD-R/ THD-F There are two typical definitions used when dealing with Total Harmonic Distortion (THD). The two types of Total Harmonic Distortion are THD-F and THD-R. THD-F uses fundamental wave forms and THD-R uses total RMS values as a reference.

  • Page 37: Phase Detection

    6.5 Phase detection 6.5 Phase detection Note ● KEW 2062 / 2062BT cannot measure Three-phase 4-wire with different capacitors (V/ ∆- connection). ● When setting the buzzer to “OFF”, buzzer doesn’t sound at the end of detection process. If buzzer indication is required for phase detection judgement, set the buzzer to “ON”.

  • Page 38: Chapter 7 Other Functions

    Chapter 7 Other functions KEW 2062/2062BT Chapter 7 Other functions [Data hold function] The LCD shows “ ” in the upper left corner by pressing data hold button and hold the currently displayed reading. In this state, the instrument is performing measurements; however, the reading isn’t updated.

  • Page 39: Chapter 8 Bluetooth Communication

    If you still cannot confirm the connection, there may be some problem with the instrument unit. Please contact your local KYORITSU distributor. ● The Bluetooth word mark and logos are owned by Bluetooth SIG, Inc. and we, KYORITSU, are licensed by them for use.

  • Page 40: Kew Power*(Asterisk) Features

    8.1 KEW Power*(asterisk) features KEW 2062/2062BT 8.1 KEW Power*(asterisk) features KEW Power*(asterisk) for KEW 2062BT The special application “KEW Power*” is available on download site for free. (An Internet access is required: Android tablets, via Google Play Store and iOS devices, via App Store).

  • Page 41: Chapter 9 Specifications

    KEW 2062/2062BT Chapter. 9 Specifications Chapter. 9 Specifications 9.1 Safety specifications Location for use : Altitude 2000 m or less, in-door use Accuracy guaranteed Temp. & Hum. range : 23°C±5°C, Relative humidity 85% or less (no condensation) Operating Temp. &: : -10°C to +50°C, 85 % or less (no condensation) humidity range Storage Temp.

  • Page 42: Measurement Specifications

    9.3 Measurement specifications KEW 2062/2062BT 9.3 Measurement specifications AC current function RMS AC current value (ACA) [Arms], Peak value (Absolute value) peak Range 40.00 A/ 400.0 A/ 1000 A Auto-ranging, range won’t be fixed. A range shifts to one upper range when the input exceeds 110% or 300% peak (absolute value) of the currently selected range and shifts to one lower range when the input drops 90% rms.

  • Page 43: Ac Voltage Function

    KEW 2062/2062BT AC Voltage function AC Voltage function RMS AC voltage value (ACV) [Vrms], Peak value (Absolute value) peak Range 1000V Display digit 4-digit Sampling period One cycle/ 500 ms Sampling frequency 32.8 kHz (every 30.5ɥs) PEAK value: moving average is 9 points between 40.0Hz and 70.0Hz only.

  • Page 44: Power Function

    Power function KEW 2062/2062BT Power function Active power (P) [W] 40.00kW/400.0 kW/1000 kW Range * Switched according to the selected current range. 4-digit Display digit (The LCD shows ”----” if the reading is out of the guaranteed accuracy range.) Sampling period...
  • Page 45 KEW 2062/2062BT Apparent power (S) [VA] Apparent power (S) [VA] Range Same as the active power Display digit Same as the active power Effective input range Same as the active power Accuracy ±1dgt to the result determined by each measured value * Sum: add errors of each channel, 3P3W: ±2dgt, 3P4W: ±3dgt...

  • Page 46: Voltage Current Phase Difference (Θ) [Deg]

    Power factor (PF) KEW 2062/2062BT Power factor (PF) Effective input range Same as the active power Display range -1.000 to 0.000 to 1.000 ±1dgt to the result determined by each measured value Accuracy * ±2dgt when measuring balance 3P3W, ±3dgt when measuring balance 3P4W PF= �...

  • Page 47: Harmonics Function

    KEW 2062/2062BT Harmonics function Harmonics function Measurement Frequency fixed sampling method Perform sampling 256 times per input cycle (50/ 60 Hz) and do FFT calculation. Sampling frequency changes depending on the preset nominal frequency. 50Hz…12.8ksps(every 78μs), 60Hz…15.4ksps(every 65μs) Connect to L＝V...
  • Page 48 Harmonics function KEW 2062/2062BT Harmonics RMS current (Ak: 1 fundamental wave to 30 harmonics) [Arms] Range, Display digit, effective input range Same as the RMS current Display range Same as the RMS current *Content rate 0.0% to 100.0% against fundamental wave...

  • Page 49: Phase Detection Function

    KEW 2062/2062BT Phase detection function Total harmonics voltage distortion factor (V THD-R) [%] Display digit 4-digit Display range 0.0% to 100.0% Accuracy ±1 against the calculated results of each measured value. � ∑ ( Vk ) Formula ×100 � ∑...
  • Page 52 KEW 2062/2062BT Distributor Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations. 11-20 92-2398 01-21 92-2398...

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