Page 1 INSTRUCTION MANUAL POWER QUALITY ANALYZER KEW 6310 KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD. TOKYO, JAPAN...
Page 2: Table Of Contents
Contents KEW6310 Contents ········································································································································1 Unpacking ·······································································································································5 Safety warnings ······························································································································7 Section 1 Instrument Overview ···································································································· 1.1 Functional Overview······························································································· 1.1 Features ·················································································································· 1.3 Connection Diagram ······························································································ 1.5 Measuring Procedure····························································································· 1.6 Outline of max demand measurement concept ··················································· 1.7 Section 2 Instrument Layout········································································································· 2.1 Front View···············································································································...
Page 3 KEW6310 Contents Section 6 Instantaneous value measurement············································································· 6.1 Indications on LCD·································································································· 6.1 6.1.1 Display screen .......................... 6.1.2 Switching displays ........................6.1.3 Zoom............................Measuring Procedure ····························································································6.11 Data saving············································································································ 6.12 6.12 6.3.1 Saving Inst measurement data···························································································· 6.14 6.3.2 Limitations of saving·············································································································· 6.15 6.3.3 Saved data·····························································································································...
Page 4: Contents
Contents KEW6310 Data saving·············································································································· 9.7 9.3.1 Saving Procedure····················································································································· 9.3.2 Limitations of saving················································································································· 9.3.3 Saved data································································································································ Ranges and Over-range indications ···································································· 9.12 9.12 9.4.1 Ranges··································································································································· 9.12 9.4.2 Over-range / Bar indication··································································································· Section 10 Harmonic Analysis···································································································· 10.1 10.1 Indications on LCD ····························································································· 10.1 10.1 10.1.1 Display screen ·······················································································································...
Page 5: Data Saving··············································································································
KEW6310 Contents 11.6 Flicker ······················································································································11.33 11.33 11.6.1 Display screen····················································································································· 11.37 11.6.2 Measuring Procedure········································································································· 11.38 11.6.3 Data saving ·························································································································· 11.40 11.6.4 Limitations of saving············································································································ 11.40 11.6.5 Saved data··························································································································· 11.7 Capacitance Calculation- Sizing of capacitor banks for Power factor correction (PFC) ·································································································································11.43 11.43 11.7.1 Display screen·····················································································································...
Page 6: Unpacking
Unpacking Procedure KEW6310 ● Unpacking Procedure Power Quality Analyzer We thank you for purchasing the “KEW6310”. Please check the contents and instrument before use. ● Items listed below are included with the standard set: Main unit KEW6310 : 1 unit MODEL7141 : 1 set Voltage test lead (red, black, green, blue: 1pce for each)
Page 7 17. Power supply adapter (with magnet) ● In case any of the items listed above are found to be damaged or missing or if the printing is unclear, please contact your local KYORITSU distributor from where the instrument was purchased. KEW6310...
Page 8: Safety Warnings
Safety warnings KEW6310 ● Safety warnings This instrument has been designed, manufactured and tested according to IEC 61010: Safety requirements for Electronic Measuring apparatus, and delivered in the best condition after passing quality control tests. This instruction manual contains warnings and safety rules which have to be observed by the user to ensure safe operation of the instrument and to maintain it in safe condition.
Page 9 KEW6310 Safety warnings DANGER ● Verify proper operation on a known source before use. ● Verify proper operation on a known source before use or taking action as a result of the indication of the instrument. ● Never make measurement on a circuit in which the electrical potential exceeds AC600V. ●...
Page 10 - Repair - ● 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. - Battery - ● Do not try to replace the batteries if the surface of the instrument is wet.
Page 11 KEW6310 Safety warnings CAUTION ● Caution should be taken since conductors under test may be hot. ● Never apply currents or voltages exceeding the maximum allowable input for the instrument for a long time. ● Don’t apply currents or voltages to Voltage test leads or Clamp sensors while the instrument is in off status. ●...
Page 12: Section 1 Instrument Overview
1.1 Functional Overview KEW6310 1. Instrument Overview 1. 1 Functional Overview Instantaneous value measurement Measures average/max/min values of instantaneous values of current, voltage and electric power. See Section 6 “Instantaneous value measurement” for further details. Integration value measurement Measures active/ apparent/ reactive powers on each CH.
Page 13: Ranges···································································································································
KEW6310 1.1 Functional Overview Measurement at WAVE Range Displays vector / waveform of voltages and currents per CH See “WAVE Range (Section 9)” for further details. Harmonic measurement Measures / analyzes harmonic components of current & voltages See “Harmonic Analysis (Section 10)” for further details.
Page 14: Features
1.2 Features KEW6310 1.2 Features This is a Power Quality Analyzer that can be used for various wiring systems. It can be used for simple measurements of instantaneous/ integration/ demand values, and also for monitoring waveforms and vectors, analyzing harmonics and measuring the fluctuations in supply voltages and can perform Capacitance Calculation.
Page 15 KEW6310 1.2 Features Saving data KEW6310 is endowed with a logging function with a preset recording interval. Data can be saved by manual operation or at pre-set time & date. Screen data can be saved by using Print Screen function. Dual power supply system KEW6310 operates either with AC power supply or with batteries.
Page 16: Connection Diagram
1.3 Connection Diagram KEW6310 1.3 Connection Diagram Current Input Power Cord Voltage Input Digital Output (1ch) Recorder / Alarm device Analogue Input (2ch) Alkaline dry-cell / Ni-MH Thermometer/Light sensor rechargeable batteries CF Card KEW6310...
Page 17: Measuring Procedure
KEW6310 1.4 Measuring Procedure 1.4 Measuring Procedure ● Steps for measurement Ensuring your safety See “Safety Warnings”. Preparation See “Section 3: Getting started”. Basic / Measurement / Save Settings See “Section 4: Setting”. Wiring See “Section 5: Wiring”. * Measuring instantaneous values : “Section 6: Instantaneous value Measurement”...
Page 18: Outline Of Max Demand Measurement Concept
1.5 Outline of max demand measurement concept KEW6310 1.5 Outline of max demand measurement concept In some countries, large consumers of electricity will usually have a maximum demand contract with the power company. Such contract varies from country to country. The following is an explanation of a typical Japanese maximum demand contract.
Page 19 KEW6310 1.5 Outline of max demand measurement concept KEW6310...
Page 20: Section 2 Instrument Layout
2.1 Front View KEW6310 2. Instrument Layout 2.1 Front View Display (LCD) / Keys Display (LCD) Keys LED status indicator Green lights up : Recording & measuring Green flashes : Stand-by (lights up when preset time comes) Red flashes : Charging batteries KEW6310...
Page 21 KEW6310 2.1 Front View Key Operations Keys Details Power Power on / off the instrument Display / hide the indications on the LCD LCD ON/OFF Select the setting items, switches screens Cursor Confirm entries ENTER Key/ Cancel setting changes, clear integration / RESET demand data selected by Cursor...
Page 22: Connector
2.2 Connector KEW6310 2.2Connector Descriptions Voltage Input Terminal (VN, V1, V2, V3) Current Input Terminal (A1, A2, A3, A4) Terminal Cover Power Connector Wiring configuration Voltage Input Terminal Current Input Terminal Single-phase 2-wire (1ch) “1P2W×1” VN, 1 Single-phase 2-wire (2ch) “1P2W×2”...
Page 23: Side Face
KEW6310 2.3 Side Face 2.3 Side Face Descriptions <when the Connector Cover is closed> CF Card Cover USB Port Analogue Input/ Digital output <when the Connector Cover is closed> USB Connector Eject Button Analogue Input/ Digital output Terminal CF Card Slot KEW6310...
Page 24: Battery Case
2.4 Battery Case KEW6310 2.4 Battery Case Descriptions Selector Switch Cover Battery Cover Selector switch cover Selector switch * Set the Selector Switch to either “DRY BATTERY” (alkaline) or “RECHARGEABLE BATTERY” (Ni-MH) position depending on the battery you use. KEW6310...
Page 25: Marks Displayed On The Lcd
KEW6310 2.5 Marks displayed on the LCD 2.5 Marks displayed on the LCD Flash while saving data Flash in stand-by mode Flash while saving data to a CF Card Flash while saving data to the internal memory Displayed when the capacity of CF Card or the internal memory is full Displayed when KEW6310 is operating with AC power supply Displayed when KEW6310 is operating with batteries...
Page 26 2.5 Marks displayed on the LCD KEW6310 Marks for Function Keys ｎ Switch to the screen for Instantaneous value measurement Switch to the screen for Integration value measurement Switch to the screen for Demand measurement Switch to the screen for Waveform measurement Switch to the Vecory display screen Change scale of voltage at the screen for Waveform measurement...
Page 27 KEW6310 2.5 Marks displayed on the LCD KEW6310...
Page 28: Preparation
3.1.1 Putting a Connector plate on the Input terminal KEW6310 3. Getting started 3.1 Preparation 3.1.1 Putting Input terminal plate on the Input terminal Six Input terminal plates are supplied with this instrument. Choose one Plate which matches the standard cord colors where the instrument is used.
Page 29: Attaching Markers To Voltage Test Leads And Clamp Sensors
KEW6310 3.1.2 Attaching Markers to Voltage test leads and Clamp sensors 3.1.2 Attaching Markers to Voltage test leads and Clamp sensors Attach Markers to the both ends of the Voltage test leads and Clamp sensors harmonized with the Input terminals. * Supplied Markers are 32 pcs in total : 4pcs each color (red, blue, yellow, green, brown, gray, black, white).
Page 30: Power Supply
3.2.1 Battery KEW6310 3.2 Power Supply 3.2.1 Battery KEW6310 operates with either an AC power supply or batteries. Capable of performing measurements in the event of AC power interruption, power to the instrument is automatically restored by the batteries installed in the instrument.
Page 31 KEW6310 3.2.1 Battery Display Mark of power supply changes as follows. AC power supply-operated Battery-operated* mark flashes while charging batteries. Battery Condition Battery mark varies as follows depending on battery condition. Alkaline dry battery (LR6) Ni-MH Rechargeable battery (HR-15/51) about 2 hours autonomy about 5 hours autonomy...
Page 32 3.2.1 Battery KEW6310 Inserting dry-cell batteries Loosen two Battery Cover-fixing screws and remove the Cover. Take out all the batteries. Loosen the screws and remove the Selector Switch Cover. Attention should be paid so as not to lose the screws. Slide to left and set the Selector Switch to “DRY”...
Page 33 KEW6310 3.2.1 Battery Rechargeable batteries This instrument can charge rechargeable batteries via AC power supply. Loosen two Battery Cover-fixing screws and remove the Cover. Take out all the batteries. Loosen the screws and remove the Selector Switch Cover. Attention should be paid so as not to lose the screws. Slide to left and set the Selector Switch to “RE-CHARGEABLE”...
Page 34: Charging Batteries
3.2.1 Battery KEW6310 Battery charge starts and the screen returns to normal. ● Charging batteries Indications on the instrument during a charging are as follows. Indications LCD ON Battery mark on the LCD flashes. LED status indicator doesn’t light up. LCD OFF or LED status indicator flashes in red.
Page 35 KEW6310 3.2.1 Battery Charging cycle is 5 min, and charging patterns vary as follows depending on the instrument condition. This is to control temperature rises on the instrument resulting from battery charge. Pattern Charging Pause Total charging time I. Power ON (LCD_ON) 0.7 min 4.3 min II.
Page 36: Ac Power Supply
3.2.2 AC Power Supply KEW6310 3.2.2 AC Power Supply Check the followings before connecting the Power cord. DANGER ● Use only the Power cord supplied with this instrument. ● Connect the Power cord mains plug to a mains socket outlet. The mains supply voltage must not exceed AC240V.
Page 37: Voltage Test Leads And Clamp Sensor Connection
KEW6310 3.3 Voltage test leads and Clamp sensor connection 3.3 Voltage test leads and Clamp sensor connection Check the followings before connection. DANGER ● Use only the Voltage test leads supplied with this instrument. ● Use the dedicated Clamp sensor for this instrument, and confirm that the measured current rating of the Clamp sensor is not exceeded.
Page 38: Start Kew6310
3.4.1 Start-up Screen KEW6310 3.4 Start KEW6310 3.4.1 Start-up Screen Hold down the POWER Key until the Start-up screen is displayed. Pressing the POWER Key for 2 sec or more powers off the instrument. Following screen is displayed when the instrument is on. MODEL/VERSION screen is displayed, and a self-check routine starts.
Page 39 KEW6310 3.4.1 Start-up Screen 3.12 KEW6310...
Page 40: Error Message
3.4.2 Error message KEW6310 3.4.2 Error message Following screen may appear after a self-check routine. ● When a failure is detected; This instrument automatically checks the internal circuit immediately after it is powered on. If a suspect failure in the internal circuit is detected, the error screen below will be displayed for about 5 sec. In this case, refrain from using the instrument and refer to “Section15: Troubleshooting”...
Page 41 KEW6310 3.4.2 Error message ● When CF card needs to be formatted; Following screen is displayed for 5 sec when a CF Card has to be formatted. * Only the CF Card formatted via FAT system can be used with this instrument. Select “Yes”...
Page 42: Section 4 Setting
4.1 List of Setting items KEW6310 4. Setting 4.1 List of Setting items Settings for measurement condition and data saving are necessary prior to making measurements. Press the Key to enter into SET UP mode and do necessary settings. Setting screens consists of following screens. Pressing the Keys moves to: * Basic Setting...
Page 43 KEW6310 4.1 List of Setting items Interval* Reference Voltage Transient* Swell Swell / Dip / Int Measurement Int (short-interruption) Hysteresis Trigger point Interval* Voltage Range Measurement Transient Measurement Threshold value Hysteresis Trigger point Interval* Clamp Current Range Reference Current Inrush current Measurement Filter Threshold value Hysteresis...
Page 44: Settings
4.2.1 Basic Setting KEW6310 4.2 Settings 4.2.1 Basic Setting Wiring Configuration Three-phase 3-wire (1ch) + ① 1P2W×1 Single-phase 2-wire (1ch) ⑩ 3P3W×1+2A 2-current ② 1P2W×2 Single-phase 2-wire (2ch) ⑪ 3P3W3A Three-phase 3-wire 3A ③ 1P2W×3 Single-phase 2-wire (3ch) ⑫ 3P4W×1 Three-phase 4-wire (1ch) Three-phase 4-wire (1ch) + ④...
Page 45 KEW6310 4.2.1 Basic Setting Check of Connection diagram Connection diagram can be viewed at selecting a wiring configuration. Move to a screen for selecting a wiring configuration. Use the Cursor Keys to select a wiring configuration, and then press the Key.
Page 46 4.2.1 Basic Setting KEW6310 Setting for Voltage Range 150V 300V 600V 1000V * Default value (or after system reset) : 300V Press the Cursor Keys and select [V Range], and then press the ENTER Key. Press the Cursor Keys and select a desirable voltage value, and then press the ENTER Key.
Page 47 KEW6310 4.2.1 Basic Setting Setting for VT Ratio 0.01 ~ 9999.99 (can be set by 0.01) * Default value (or after system reset) : 1.00 For the details of VT ratio, refer to “5.4 VT / CT Ratio” in this manual. Press the Cursor Keys and select [VT Ratio], and then press the...
Page 48 4.2.1 Basic Setting KEW6310 When decreasing a value to 0 in descending sequence, value at the tents' place decreases by 1. Press the Cursor to move to upper places. Press the Cursor to move to lower places. In case that a preset value is 0000.01, the hundreds’ place cannot be altered in descending sequence.
Page 49: Section 5 Wiring Configurations
KEW6310 4.2.1 Basic Setting Setting for Clamp sensor Model names and rated currents of Clamp sensors are listed as follows. Clamp sensors for Leakage Clamp sensor Power measurement 8128 50A type 8141 1A type 8127 100A type 8142 1A type 8126 200A type 8143...
Page 50 4.2.1 Basic Setting KEW6310 Manual setting and auto setting both are available for Clamp sensors. << Manual Setting >> Press the Cursor Keys and select [Clamp], and then press the ENTER Key. Press the Cursor Keys and select a Clamp sensor to be used, and then press the ENTER Key.
Page 51 KEW6310 4.2.1 Basic Setting When setting for [Clamp] is done, the upper limit of measuring range of the selected sensor is displayed automatically. Press the Cursor Keys and select Clamp sensors to be used at the other CH, and make settings in the same way. Settings for [Clamp] and [A Range] are active in subsequent measurements, but they will change when preset wiring configurations are changed.
Page 52 4.2.1 Basic Setting KEW6310 << Auto Setting >> Model name of the Clamp sensor connected to the Current Terminal of the instrument is detected auto- matically at Auto setting mode. Setting for [Wiring] should be done to advance Auto setting. Confirm that settings for [Wiring] are made, and then press the Key.
Page 53 KEW6310 4.2.1 Basic Setting The instrument detects and checks the connected Clamp sensors and the selected wiring configuration, and displays following messages when improper Clamp sensors are connected. < Improper Clamp sensor is detected > Question mark “?” is displayed at Model Model names of the connected name and Current range boxes.
Page 54 4.2.1 Basic Setting KEW6310 Setting for Current Range Available Current Range varies depending on the Clamp sensor to be used. 8128 1/5/10/20/50A/AUTO 8127 10/20/50/100A/AUTO 8126 20/50/100/200A/AUTO 8125 50/100/200/500A/AUTO 8124 100/200/500/1000A/AUTO 8129 300/1000/3000A 8141 8142 100mA/500mA/1A/AUTO 8143 8146 8147 500mA/1/5/10A/AUTO 8148 * Default value (or after system reset) : 200A(8125) Press the Cursor...
Page 55 KEW6310 4.2.1 Basic Setting Press the Cursor Keys and select a Current Range to be used, and then press the ENTER Key. Drop down list appears. Selected Current Range per Ch is displayed. When setting for [Clamp] is done, the upper limit of measuring range of the selected sensor is displayed automatically.
Page 56 4.2.1 Basic Setting KEW6310 Display range and guaranteed accuracy range for each Current Range are as follows. 50ARange 20ARange Display range 8128 10ARange 0.05 Accuracy range 5ARange 0.01 1ARange 100ARange 50ARange 8127 20ARange 10ARange 200ARange 100ARange 8126 50ARange 20ARange 500ARange 200ARange 8125 100ARange...
Page 57 KEW6310 4.2.1 Basic Setting Setting for CT ratio 0.01 ~ 9999.99 (can be set by 0.01) * Default value (or after system reset) : 1.00 For the details of CT ratio, refer to “5.4 VT / CT Ratio” in this manual. Press the Cursor Keys and select [CT Ratio], and then press the...
Page 58 4.2.1 Basic Setting KEW6310 Setting for Filter Lowpass filter activate to cut frequencies in higher harmonic band when set the Filter function “ON”. (Cutoff frequency : approx 160Hz) Available (ON⇔OFF) Filter Not available (------) ⑦1P3W x 1+2A 3,4ch ⑩3P3W x 1+2A 3,4ch Wiring ⑬3P4W x 1+1A...
Page 59 KEW6310 4.2.1 Basic Setting Setting for DC V Setting for Voltage Range at analogue input terminal can be made according to the procedure below. 50mV 500mV * Default value (or after system reset) : 5V Press the Cursor Keys and select [DC V], and then press the ENTER Key.
Page 60 4.2.1 Basic Setting KEW6310 Setting for Frequency Frequency of the fixed clock can be changed according to following procedure when PLL synchronized measurement cannot be made. 50Hz 60Hz * Default value (or after system reset) : 50Hz Press the Cursor Keys and select [Freq], and then press the ENTER Key.
Page 61 KEW6310 4.2.1 Basic Setting 4.20 KEW6310...
Page 62 4.2.2 Measurement setting (W/Wh/DEMAND) KEW6310 4.2.2 Measurement setting W/ Wh/ DEMAND Press the Key at Measurement setting screen to move to the setting screen for W/ Wh/ DEMAND Range. Setting for interval Interval is a space of the time between data savings; data is saved in a CF card or Internal memory. 1 sec 1 min 2 sec...
Page 63 KEW6310 4.2.2 Measurement setting (W/Wh/DEMAND) Setting for inst / avg / max / min values Select “ON” for the parameters to be saved. ON⇔OFF * Default value (or after system reset) : ON Press the Cursor Keys and select any of [Inst / Avg / Max / Min], and then press the ENTER Key.
Page 64 4.2.2 Measurement setting (W/Wh/DEMAND) KEW6310 Setting for detailed items Parameters saved under ON or OFF setting for Detailed item are listed below. WP+ / WP- WS+ / WS- WQi+ / WQc+ WQi- / WQc- Each CH ON⇔OFF * Default value (or after system reset) : ON Press the Cursor Keys and select [Detailed item], and then press the...
Page 65 KEW6310 4.2.2 Measurement setting (W/Wh/DEMAND) Setting for Target demand For the details of target demand, refer to “Section8 Demand measurement” in this manual. 1.000 ~ 999.9(can be set by 0.1) mW/W/kW/MW/GW/TW * Default value (or after system reset) : 300.0kW Press the Cursor Keys and select [Demand Target], and then press the...
Page 66 4.2.2 Measurement setting (W/Wh/DEMAND) KEW6310 Use the Cursor Keys and set multipliers. Multiplier Setting As a target demand, values within a range between 1000 and 9999 can be used. To select a value 1000 or less, minus multiplier should be used. 100.0 = 1000 x 10 10.00 = 1000 x 10 1.000 = 1000 x 10...
Page 67 KEW6310 4.2.2 Measurement setting (W/Wh/DEMAND) Setting for Demand inspection cycle For the details of Demand inspection cycle, refer to “Section 8 Demand measurement” in this manual. Demand Interval Demand Inspection Cycle 1 sec invalid 2 sec 5 sec 10 sec 1sec/2sec/5sec 15 sec 2sec/5sec/10sec...
Page 68 4.2.2 Measurement setting (W/Wh/DEMAND) KEW6310 Press the Cursor Keys and select [Demand Inspection], and then press the ENTER Key. Press the Cursor Keys and select a desirable cycle, and then press the ENTER Key. Drop down list appears. Selected Demand Inspection Cycle is displayed. Demand Inspection Cycle listed on the drop down list depends on the selected interval.
Page 69 KEW6310 4.2.2 Measurement setting (WAVE Range) 4.28 KEW6310...
Page 70 4.2.2 Measurement setting (WAVE Range) KEW6310 WAVE Range Setting Press the Key at each Measurement setting screen, and move to the screen for WAVE Range Setting. Setting for interval * Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in the preceding pages.
Page 71 KEW6310 4.2.2 Measurement Setting (Harmonic Analysis) Harmonic Analysis Press the Key at each Measurement setting screen, and move to the screen for Harmonic Analysis Setting. Setting for interval * Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in the preceding pages.
Page 72 4.2.2 Measurement Setting (Harmonic Analysis) KEW6310 Setting for allowable range For the details of allowable range of Harmonic Analysis, refer to “Section10 Harmonic analysis” in this manual. Default value Customize (can be set by 0.1) (can be set by 0.1) * Default value (or after system reset) : Default value Either default values listed in the below table or customized values can be used.
Page 73 KEW6310 4.2.2 Measurement Setting (Harmonic Analysis) < Adopting default values > Press the Cursor Keys and select [Allowable range], and then press the ENTER Key. Press the Cursor Keys and select [Default Value], and then press the ENTER Key. Drop down list appears. Selectable default value is displayed.
Page 74 KEW6310 4.2.2 Measurement Setting (Harmonic Analysis) < Adopting customized values > Press the Cursor Keys and select [Allowable range], and then press the ENTER Key. Press the Cursor Keys and select [Customize], and then press the ENTER Key. Drop down list appears. Press the Cursor Keys and select the order to be changed, and then press...
Page 75 4.2.2 Measurement Setting (Harmonic Analysis) KEW6310 Press the Cursor Keys and move the cursor to [OK], and press the ENTER Key. To cancel the alternations of values, move the cursor to [Cancel], and press the ENTER Key. Then Screen returns to 1 . Point the cursor here.
Page 76 KEW6310 4.2.2 Measurement Setting (Harmonic Analysis) Setting for MAX HOLD For the details of Max Hold in Harmonic Analysis, refer to “Section10 Harmonic analysis” in this manual. ON⇔OFF * Default value (or after system reset) : ON Press the Cursor Keys and select [MAX Hold], and then press the ENTER Key.
Page 77 4.2.2 Measurement Setting (Harmonic Analysis) KEW6310 Setting for saving items Parameters with “ON” setting will be saved. ON⇔OFF * Default value (or after system reset) : ON (all items) Press the Cursor Keys and select a parameter to be changed, and then press ENTER Key.
Page 78 KEW6310 4.2 .2 Measurement Setting (QUALITY-Swell, Dip, Int Measurement) QUALITY Press the Key at Measurement setting screens to move to the QUALITY setting screen. Access to “QUALITY” from Measurement Setting Tab, and press Cursor Keys and select : Swell / Dip / Int, Transient, Inrush current, Unbalance rate, Capacitance calculation and Flicker measurement*.
Page 79 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement) KEW6310 Setting for interval Interval is a space of the time between data savings; data is saved in a CF card or Internal memory. * Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in the preceding pages.
Page 80 KEW6310 4.2.2 Measurement Setting (QUALITY-Swell, Dip, Int Measurement) Setting for Transient Voltage Range 70~150V 151~300V 301~600V 601~1000V Transient 50~310Vpeak 90~630Vpeak 170~1270Vpeak 340~2000Vpeak (on 1V basis) * Default value (or after system reset) : 210V * Vrms value (Vpeak divided by √2) is automatically calculated when Vpeak is set. Press the Cursor Keys and select [Transient], and then press the...
Page 81 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement) KEW6310 Setting for swell 100 ~ 200% (can be set by 1%) * Default value (or after system reset) : 110% Press the Cursor Keys and select [Swell], and then press the ENTER Key.
Page 82 KEW6310 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement) Setting for dip 5~ 100% (can be set by 1%) * Default value (or after system reset) : 90% Press the Cursor Keys and select [Dip], and then press the ENTER Key. Press the Cursor Keys and alter values, and then press the...
Page 83 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement) KEW6310 Setting for int (short interruption) 5 ~ 98% (can be set by 1%) * Default value (or after system reset) : 10% Press the Cursor Keys and select [Short interruption], and then press the ENTER Key.
Page 84 KEW6310 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement) Setting for hysteresis 1 ~ 10% (can be set by 1%) * Default value (or after system reset) : 5% Press the Cursor Keys and select [Hysteresis], and then press the ENTER Key.
Page 85 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement) KEW6310 Setting for trigger point Trigger to start and stop recording, when a preset threshold is exceeded, is decided based on the number of recorded data. Past: 0 ~ 200 (can be set by 1) Next : 200 ~ 0 (can be set by 1) * Default value (or after system reset) : 100 Example of Trigger Pint Setting:...
Page 86 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement) KEW6310 Press the Cursor Keys and select [Trigger point], and then press the ENTER Key. Press the Cursor Keys and alter values, and then press the ENTER Key. Box with ▲▼ mark appears at the rightmost digit.
Page 87 KEW6310 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement) 4.46 KEW6310...
Page 88 4.2.2 Measurement Setting (QUALITY-Transient Measurement) KEW6310 Setting for transient measurement For the details of Transient Measurement, refer to “11.3 Transient measurement” in this manual. Setting Items Interval set interval time V Range select a base Voltage Range(150～1000V) Threshold value set Vpeak against Voltage Range(50～2000Vpeak) Hysteresis set a hystereis in percentage against Voltage Range(1～10％) Trigger point...
Page 89 KEW6310 4.2.2 Measurement Setting (QUALITY-Transient Measurement) Setting for interval * Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in the preceding pages. Setting for voltage range 150/ 300/ 600/ 1000V * Default value (or after system reset) : 1000V...
Page 90 4.2.2 Measurement Setting (QUALITY-Transient Measurement) KEW6310 Setting for threshold Voltage Range 150V 300V 600V 1000V Threshold 50~310Vpeak 90~630Vpeak 170~1270Vpeak 340~2000Vpeak (on 1V basis) * Default value (or after system reset) : 1415V * Vrms value (Vpeak divided by √2) is automatically calculated when Vpeak is set. Press the Cursor Keys and select [Threshold Value], and then press the...
Page 91 KEW6310 4.2.2 Measurement Setting (QUALITY-Transient Measurement) Setting for hysteresis 1 ~ 10% (can be set by 1%) * Default value (or after system reset) : 5% * Setting procedure is same to that for Hysteresis Setting for Swell, Dip, Int measurement. Refer to the procedure described in the preceding pages.
Page 92 4.2.2 Measurement Setting (QUALITY-Inrush Current Measurement) KEW6310 Setting for Inrush Current Measurement For the details of Inrush Current, refer to “11.4 Inrush Current Measurement” in this manual. Setting Items Interval set interval time Clamp sensor : refer to Basic setting A Range : refer to Basic setting Reference current...
Page 93 KEW6310 4.2.2 Measurement Setting (QUALITY-Inrush Current Measurement) Press the Cursor Keys and select [A_Referene], and then press the ENTER Key. Press the Cursor Keys and alter the values, and press the ENTER Key to fix it. Box with mark appears ▲▼...
Page 94 4.2.2 Measurement Setting (QUALITY-Voltage Unbalance Ratio KEW6310 Setting for unbalance rate measurement For the details of Voltage Unbalance Rate Measurement, refer to “11.5 Unbalance Rate” in this manual. Setting Items Interval : set interval time Output threshold : set threshold for the output of voltage unbalance rate Setting for interval * Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in...
Page 95 KEW6310 4.2.2 Measurement Setting (QUALITY-Flicker) Setting for Flicker measurement For the details of Flicker measurement, refer to “11.6 Flicker measurement” in this manual. Setting Items V Range ： select a desirable Voltage Range（150～600V） Filter ： select a visibility filter for flicker calculation Output item ：...
Page 96 4.2.2 Measurement Setting (QUALITY-Flicker) KEW6310 2 Select a desirable filter factor with Cusor Key and press the ENTER Key. Drop down list appears. Selected filter factor will be displayed. Setting for Output item Follow the procedure below to make setting for output items. (conditions for output to Output terminal) Pst(1min)／Pst／Plt * Default value (or after system reset) : Pst(1miin) * where :...
Page 97 KEW6310 4.2.2 Measurement Setting (QUALITY-Flicker) Setting for output threshold 0.8～20.0(can be set by 0.1) * Default value (or after system reset) :1.0 * Setting procedure is same to that for Output Threshold described in the clause of “Setting for Unbalance rate“. Refer to the procedure described in the preceding pages.
Page 98 4.2.2 Measurement Setting (QUALITY-Capacitance calculation KEW6310 Setting for capacitance calculation For the details of unbalance rate Measurement, refer to “11.7 Capacitance Calculation” in this manual. Setting items Interval : select interval Target power factor : simulating power factor correction with capacitor banks Setting for interval * Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in...
Page 99 KEW6310 4.2.2 Measurement Setting (QUALITY-Capacitance calculation 4.58 KEW6310...
Page 100 4.2.3 Save Setting KEW6310 4.2.3 Save Setting Setting for recording Manual⇔ Timer * Default value (or after system reset) : Timer Press the Cursor Keys and select [REC method], and then press the ENTER Key. Press the Cursor Keys and select Manual or Timer, and then press the ENTER Key.
Page 101 KEW6310 4.2.3 Save Setting Setting for recording start Recording starts when a preset date and time comes. MANUAL TIMER Recording method -----/--/-- --:--:-- Year//Month/Date Hour:Minute:Second Display Minute indication is rounded to the nearest 30 min Display at setting ahead. When present time is 28 ~ 30 min or 58 ~ Invalid (at step 1 below) 00 min, time indication is rounded to the nearest...
Page 102 4.2.3 Save Setting KEW6310 Setting for recording end Recording stops when preset date and time comes. MANUAL AUTO Recording method -----/--/-- --:--:-- Year//Month/Date Hour:Minute:Second Display Start time + 1 hour Display at setting When a preset start time is behind the present time, Invalid (at step 1 below) time indication is rounded to the nearest 30 min ahead...
Page 103 KEW6310 4.2.3 Save Setting Destination for saving data Internal Memory / CF Card * Data is saved to a CF card automatically under default setting or after system reset when a CF card has been inserted before powering on the instrument. * For the details of destination for saving data, refer to “12.1 CF Card / Internal Memory”...
Page 104 4.2.3 Save Setting KEW6310 Destination for saving screenshot Internal Memory / CF Card * Data is saved to a CF card automatically under default setting or after system reset when a CF card has been inserted before powering on the instrument. * For the details of destination to save data, refer to “12.1 CF Card / Internal Memory”...
Page 105 KEW6310 4.2.3 Save Setting Formatting CF Card All the saved data in the CF Card is cleared after formatting the CF Card. Backing up the necessary data prior to a format is recommended. Press the Cursor Keys and select [CF Card Formatting], and then press the ENTER Key.
Page 106 4.2.3 Save Setting KEW6310 Deleting the data in CF Card Press the Cursor Keys and select [CF Card data deletion], and then press the ENTER Key. Press the Cursor Keys and select a file to be deleted and check the box with the ENTER Key.
Page 107 KEW6310 4.2.3 Save Setting Press the Key to select all files. Press the Key again to cancel the selection. Press the Key to confirm the selection. Check boxes, and then “OK” Button appears. Press the Cursor Keys and select “Yes” or “No”, and then press the ENTER Key.
Page 108 4.2.3 Save Setting KEW6310 Formatting internal memory * All data in the Internal memory will be deleted after formatting. Backing up necessary data prior to a format is recommended. Press the Cursor Keys and select [Internal Memory Formatting], and then press the ENTER Key.
Page 109 KEW6310 4.2.3 Save Setting Deleting the data in Internal Memory Press the Cursor Keys and select [Internal Memory data deletion], and then press the ENTER Key. Press the Cursor Keys and select a file to be deleted, and check the box with the ENTER Key.
Page 110 4.2.3 Save Setting KEW6310 Press the Key to confirm the selection. Check boxes, and then “OK” Button appears. Press the Cursor Keys and select “Yes” or “No”, and then press the ENTER Key. Number of selected file is displayed. Dialogue appears. Selecting “Yes”...
Page 111 KEW6310 4.2.3 Save Setting Data Transfer * Data saved in the internal memory remains after data transfer. Press the Cursor Keys and select [Data transfer (MEM → CF)], and then press the ENTER if a CF Card isn’t inserted; no dialogue appears and a message “No CF Card” is displayed. if a CF Card hasn’t been formatted;...
Page 112 4.2.3 Save Setting KEW6310 Press the Key to determine the selection. Check boxes, and then “OK” Button appears. Press the Cursor Keys and select “Yes” or “No”, and then press the ENTER Key. Number of selected file is displayed. Selecting “Yes” initiates data transfer. Data transfer completes when a message “Finished!”...
Page 113 KEW6310 4.2.3 Save Setting If the same file name exists, following dialogue appears. Press the Cursor Keys and select “Yes” or “No”, and then press the ENTER Key. Selecting “Yes” initiates data transfer and old files are overwritten. Selecting “No” cancels data transfer. * Backing up the necessary data prior to data transfer to prevent old data from being overwritten.
Page 114 4.2.3 Save Setting KEW6310 Load setting Preset settings saved at [Save Setting] is loaded. Press the Cursor Keys and select [Load Setting], and then press the ENTER Key. Press the Cursor Keys and select a file to be loaded, and then press the ENTER Key.
Page 115 KEW6310 4.2.3 Save Setting Setting save This instrument can memorize and recall user’s preferred settings once it has been saved. Press the Cursor Keys and select [Save Setting], and then press the ENTER Key. Press the Cursor Keys and select CF (CF Card) or MEM (Internal memory) to save settings, and then press the ENTER Key.
Page 116 4.2.4 Other Setting KEW6310 4.2.4 Other Setting Language Selection Japanese ⇔ English * System reset doesn’t affect language setting. Press the Cursor Keys and select [Language], and then press the ENTER Key. Press the Cursor Keys and select “Japanese” or “English”, and then press the ENTER Key.
Page 117 KEW6310 4.2.4 Other Setting Setting for date format e.g. June 15th, 2006 YYYY / MM / DD 2006 / 06 / 15 MM / DD / YYYY 06 / 15 / 2006 DD / MM / YYYY 15 / 06 / 2006 * Default value (or after system reset) : MM / DD / YYYY Press the Cursor...
Page 118 4.2.4 Other Setting KEW6310 Setting for current date & time 2000 / 01 / 01 00:00:00 ~ 2099 / 12 / 31 23:59:59 * System reset doesn’t affect the preset current date and time. Press the Cursor Keys and select [Time], and then press the ENTER Key.
Page 119 KEW6310 4.2.4 Other Setting Setting for buzzer ON⇔OFF * Default value (or after system reset) : ON Press the Cursor Keys and select [Buzzer], and then press the ENTER Key. Press the Cursor Keys and select “ON” or “OFF”, and then press the ENTER Key.
Page 120 4.2.4 Other Setting KEW6310 Setting for CSV file Select the decimal points and separators to be used in the saved data. Setting needs to be changed depending on the language setting. Default setting is applicable to normal use. Decimal Point / Separator ．／，...
Page 121 KEW6310 4.2.4 Other Setting Setting for ID number The number selected at the step is saved in save files. It is useful to identify data when using multiple instruments and recorded data at various places. 00-001 ~ 99-999 ＊ Default value (or after system reset) : 00-001 Press the Cursor Keys and select [ID No.], and then press the...
Page 122 4.2.4 Other Setting KEW6310 Setting for LCD contrast Light ⇔ Standard ⇔ Dark ⇔ ⇔ * Default value (or after system reset) : Standard Press the Cursor Keys and select [LCD contrast], and then press the ENTER Key. Press the Cursor Keys and select a desirable contrast level, and then press the ENTER...
Page 123 KEW6310 4.2.4 Other Setting Setting for CH color Default setting Customization * System reset doesn’t affect the setting for CH Color.. Press the Cursor Keys and select [CH Color], and then press the ENTER Key. Press the Cursor Keys and select “Customize”, and then press the ENTER Key.
Page 124 4.2.4 Other Setting KEW6310 Press the Cursor Keys and choose desirable colors and then press the ENTER Key. Press the Cursor Keys and point “OK”, and then press the ENTER Key. Pressing the ENTER Key activates color change. Color change doesn’t activate when selecting “Cancel”, and return to Setting screen. System reset doesn’t affect the customized settings.
Page 125 KEW6310 4.2.4 Other Setting Setting for Auto-power-off ON⇔OFF * Default value (or after system reset) : ON * The instrument is automatically powered off when 5 min passes without any Key operation. (O = Auto-power-off / activate , X = Auto-power-off / disable) AC-power-supply Battery operated operated...
Page 126 4.2.4 Other Setting KEW6310 Setting for LCD Auto-off Indications on the LCD are hidden with “ON” setting to prevent screen from burning and to save battery during recordings ON⇔OFF * Default value (or after system reset) : ON * Indications on the LCD disappear automatically powered off when 5 min passes without any Key operation.
Page 127 KEW6310 4.2.4 Other Setting Battery charge Set the Selector switch to “RE-CHARGEABLE” position prior to starting battery charge. For further details, refer to “3.2 Power supply” in this manual. ON⇔OFF * Default value (or after system reset) : OFF Press the Cursor Keys and select [Battery Charge], and then press the ENTER...
Page 128 4.2.4 Other Setting KEW6310 The window closes and Setting screen appears when “No” is selected. In this case, batteries aren’t charged. when the Selector switch isn’t set to “RE-CHARGEABLE” position, following message appears and battery charge won’t start. 4.87 KEW6310...
Page 129 KEW6310 4.2.4 Other Setting System reset Settings restore to default after system reset. Press the Cursor Keys and select [System Reset], and then press the ENTER Key. Press the Cursor Keys and select “Yes” or “No”, and then press the ENTER Key.
Page 130: Important Preliminary Checks
5.1 Important Preliminary Checks KEW6310 5. Wining Configurations 5.1 Important preliminary checks DANGER ● Do not make measurements on a circuit in which electrical potential exceeds AC600V. ● Connect the Power cord to a socket outlet. Never connect it to the socket outlet of AC240V or more.
Page 131: Basic Wiring Configuration
KEW6310 5.2 Basic Wiring Configuration 5.2 Basic Wiring Configuration 1. “1P2W x 1” Wiring method for single-phase 2-wire (1ch) Source Load 2. “1P2W x 2” Wiring method for single-phase 2-wire (2ch) Source Load 1 Load 2 A3 A4 3. “1P2W x 3” Wiring method for single-phase 2-wire (3ch) Load 1 Source Load 2...
Page 132 5.2 Basic Wiring Configuration KEW6310 4. “1P2W x 4” Wiring method for single-phase 2-wire (4ch) Load 1 Source Load 2 Load 3 Load 4 A2 A3 V2 V3 5. “1P3W x 1” Wiring method for single-phase 3-wire (1ch) Source Load 3P3W 6.
Page 133 KEW6310 5.2 Basic Wiring Configuration 7. “1P3W x1 +2A” Wiring method for single-phase 3-wire (1ch) + 2-current Load Source 1P3W 8. “3P3W x1” Wiring method for three-phase 3-wire (1ch) L1(R) L1(R) L2(S) L2(S) Load Source 3P3W L3(T) L3(T) 9. “3P3W x2ch” Wiring method for three-phase 3-wire (2ch) L1(R) L1/R L2(S)
Page 134 5.2 Basic Wiring Configuration KEW6310 10. “3P3W x1 +2A” Wiring method for three-phase 3-wire (1ch) + 2-current L1(R) L1(R) L2(S) L2(S) Load Source 3P3W L3(T) L3(T) 11. “3P3W 3A” Wiring method for three-phase 3-wire + 3-current L1(R) L1(R) L2(S) L2(S) Load Source 3P3W...
Page 135 KEW6310 5.2 Basic Wiring Configuration 13. “3P4W x1 +1A” Wiring method for three-phase 4-wire (1ch) + 1-current L1(R) L1(R) L2(S) L2(S) Load Source L3(T) L3(T) 3P4W 4A 4-current KEW6310...
Page 136: Wiring Check
5.3.1 Checking procedure KEW6310 5.3 Wiring check Proper wirings can be checked at WAVE Range. 5.3.1 Checking procedure 1 Select the WAVE Range with Key and press the Key. 2 Wiring check routine starts. Status is indicated when checking starts. Correct vector (varies depending on wiring configurations) 3 Wiring check complets.
Page 137: Criteria Of Judgment
KEW6310 5.3.2 Criteria of Judgment Check screen In case of NG, Error message appears. (Press the ENTER Key when OK is displayed.) * Check results may be affected if great power factors exist at the measurement sites. 5.3.2 Criteria of Judgment Check Criteria of Judgment Cause...
Page 138: Using Supplementary Vt/Ct's
5.4 VT/ CT KEW6310 5.4 Using supplementary VT/CT’s (not supplied with the instrument) DANGER ● Never make measurement on a circuit in which electrical potential exceeds AC600V. ● Connect the Power cord to a socket outlet. Never connect it to the socket outlet of AC240V or more.
Page 139 KEW6310 5.4 VT/ CT 5.10 KEW6310...
Page 140: Section 6 Instantaneous Value Measurement·············································································
6.1.1 Instantaneous value measurement-Display screen KEW6310 6. Instantaneous value measurement 6.1 Indications on LCD 6.1.1 Display Screen Press the Key to display a list for W Range. Measured/ calculated value at each Range Power Source / Time System Item Frequency Sum of the measured values at each Range Interval...
Page 141 KEW6310 6.1.1 Instantaneous value measurement -Display screen Displayed contents are depending on the selected wiring configurations. Followings are displayed in a list depending on the selected wiring configurations. 1. 1P2W × 1 Single-phase 2-Wire (1CH) ● ● ● ● ● ●...
Page 142 6.1.1 Instantaneous value measurement -Display screen KEW6310 3. 1P2W × 3 Single-phase 2-Wire (3CH) 1 CH 2 CH 3 CH ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● PF ● PF ● PF ● ●...
Page 143 KEW6310 6.1.1 Instantaneous value measurement -Display screen 5. 1P3W × 1 Single-phase 3-Wire (1CH), 7. 1P3W × 1 + 2A Single-phase 3-Wire (1CH) + 2-current 1ch 2ch ● ● ● ● ● ● ● ● ● ● ● ● ● ●...
Page 144 6.1.1 Instantaneous value measurement -Display screen KEW6310 8. 3P3W × 1 Three-phase 3-Wire (1CH), 10. 3P3W × 1 + 2A Three-phase 3-Wire (1CH) + 2-current 1ch 2ch ● ● ● Calculated by vector operation ● ● ● ● ● ● ●...
Page 145 KEW6310 6.1.1 Instantaneous value measurement -Display screen 11. 3P3W3A Three-phase 3-Wire 3A 1ch 2ch 3ch ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● PF ● ● ● ● ● ● ● ● ● ●...
Page 146 6.1.1 Instantaneous value measurement -Display screen KEW6310 ● ● ● ● DC1 ● DC2 ● KEW6310...
Page 147 KEW6310 6.1.2 Instantaneous value measurement -Switching displays 6.1.2 Switching displays Switching systems Press the Cursor Keys and view displays for each system. Switching items Press the Cursor Keys and view the instantaneous, average values etc. * Displayed contents are depending on the selected wiring configurations. * ∑...
Page 148 6.1.3 Instantaneous value measurement -Zoom KEW6310 6.1.3 Zoom Default setting or the setting after system reset is depending on the selected wiring configurations. Pressing the Key while a list for Instantaneous Value Measurement is being displayed zooms the list. Press the Key again to return to the list display.
Page 149 KEW6310 6.1.3 Instantaneous value measurement -Zoom Customizing the Zoom screen Press the Cursor Keys and select the item to be customized, and then press the ENTER Key. Measuring items Items Point the item to be customized with cursor. Press the Cursor Keys and select any items, and then press the ENTER...
Page 150 6.2 Instantaneous value measurement -Measuring Procedure KEW6310 6.2 Measuring Procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Getting started See “Section 3 Getting started”. ↓ Setting See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. ↓...
Page 151: Saving Inst Measurement Data····························································································
KEW6310 6.3.1 Instantaneous value measurement -Saving procedure 6.3 Data Saving 6.3.1 Saving Inst measurement data Saving procedure Press the Key at the List or Zoom screen. Press the Key and check the Basic, Measurement and Save settings. Press the Cursor Keys to select and modify the settings.
Page 152 6.3.1 Instantaneous value measurement -Saving procedure KEW6310 Manually start saving data, or press the Key. Stand-by screen (WAIT) appears if saving start date and time has been specified. Flashes. Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. Flashes Destination for saving data will be highlighted and flashes in red.
Page 153: Limitations Of Saving··············································································································
KEW6310 6.3.2 Instantaneous value measurement -Limitations of saving 6.3.2 Limitations of saving When data cannot be saved during a measurement, Warning message is displayed. Further data cannot be saved when max number of file or a capacity is exceeded. Previously saved files should be deleted or replaced the CF Card with a new one.
Page 154: Saved Data·····························································································································
6.3.3 Instantaneous value measurement -Saved data KEW6310 6.3.3 Saved data Settings FILE ID File name VERSION Version info ID NUMBER ID number WIRING Wiring configuration VOLT RANGE Voltage Range VT RATIO VT ratio SENSOR TYPE Model name of Clamp sensor CURRENT RANGE Current Range CT RATIO...
Page 155 KEW6310 6.3.3 Instantaneous value measurement -Saved data Header of the saved data AVG_A1[A]_1 ① ② ③ ④ ⑤ ① INST Instantaneous value Average value Max value Min value ② Voltage of each phase Current of each phase Frequency Active power Reactive power Apparent power Power factor...
Page 156 6.3.3 Instantaneous value measurement -Saving data KEW6310 File format and name Measurement data is saved in CSV format, and the file name is assigned automatically. Measuring 01 － CF 001 ．csv File name 01: Inst value (W Range) ① items CF : CF Card ①...
Page 157: Ranges And Over-Range Indications ····································································
KEW6310 6.4.1 Instantaneous value measurement -Ranges 6.4 Ranges and Over-range indications 6.4.1 Ranges Ranges and decimal points for the measuring items will be automatically adjusted depending on the settings for Voltage, Current Ranges and VT / CT ratio. Voltage Range : V, Max digit : 4-digit (V Range) x (VT ratio) x (120%) Decimal point &...
Page 158 6.4.1 Instantaneous value measurement -Ranges KEW6310 Power Range : P, Q, S, Max digit : 4-digit, Max digit (to display sum): 5-digit Power x VT x 120% x A x CT x 120% Decimal point & Unit 2.1 ~ 9.999 mW 9.999 mW 10 ~ 99.99 mW 99.99 mW...
Page 159 KEW6310 6.4.1 Instantaneous value measurement -Ranges Power factor: PF, Max : 4-digit － 1 . 0 0 0 ~ 1 . 0 0 0 P F Phase Angle : PA, Max : 4-digit － 1 . 0 0 0 ~ 1 . 0 0 0 P A Frequency: f, Max : 4-digit 4 0 .
Page 160: Over-Range / Bar Indication···································································································
6.4.2 Instantaneous value measurement -Over-range / Bar indication KEW6310 6.4.2 Over-range / Bar indication Check the followings. WARNING ● When the over-range indication appears on the maximum chosen range, this means that the input exceeds the maximum allowable input for the instrument. Never apply such an input to the instrument. ●...
Page 161 KEW6310 6.4.2 Instantaneous value measurement -Over-range / Bar indication Bar Indication The calculations and measurements performed by this instrument are based on the voltage and frequency of V1. If the value of V1 is less than 5% of the chosen range or if the frequency is not within 40 ~ 70Hz, all the parameters (except for voltage and current ) cannot be computed and thus displayed.
Page 162 7.1.1 Integration measurement – Display screen KEW6310 7. Integration measurement 7.1 Indications on LCD 7.1.1 Display Screen Press the Key to view WH Range screen. Power source / Time Elapsed time of integration System Measured values Channel Interval Function Symbol displayed on the LCD Active power energy (consumption) Active power energy (regenerating)
Page 163 KEW6310 7.1.2 Integration measurement – Switching displays 7.1.2 Switching displays Switching systems Press the Cursor Keys and view displays for each system. Switching channels Press the Cursor Keys and view displays for each channel. * Displayed contents depends on the selected wiring configurations. * ∑...
Page 164 7.1.3 Integration measurement – W Range display KEW6310 7.1.3 W Range display It is possible to access the W Range display screen from the Wh Range screen. Press the Key. Wh Range W Range Pressing the Key again returns to Wh Range display screen. KEW6310...
Page 165 KEW6310 7.2 Integration measurement – Measuring Procedure 7.2 Measuring Procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Getting started See “Section 3 Getting started”. ↓ Settings See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. ↓...
Page 166 7.3.1 Integration measurement – Saving procedure KEW6310 7.3 Data Saving 7.3.1 Saving Integration measurement data Saving procedure Instantaneous and integration data is saved at the same time when saving integration measurement data. Press the Key at the Wh Range screen. Press the Key to check Basic, Measurement and Save Settings.
Page 167 KEW6310 7.3.1 Integration measurement – Saving procedure Manually start saving data, or press the Key. Stand-by screen (WAIT) appears if saving start date and time has been specified. Flashes. Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. Flashes.
Page 168 7.3.2 Integration measurement – Limitations of saving KEW6310 7.3.2 Limitations of saving Refer to “6.3.2 Limitations of saving” in this manual. 7.3.3 Saved data Settings FILE ID File name VERSION Version info ID NUMBER ID number WIRING Wiring configuration VOLT RANGE Voltage Range VT RATIO VT ratio...
Page 169 KEW6310 7.3.3 Integration measurement – Saved data Header of the saved data INTEG_WP+[Wh]_1 ③ ① ② ④ ① INTEG Integration value ② Active power energy (consumption) Active power energy (regenerating) Apparent power energy (consumption) Apparent power energy (regenerating) WQi+ Reactive power energy (consumption) – lagging WQc+ Reactive power energy (consumption) –...
Page 170 7.4.1 Integration measurement - Ranges KEW6310 7.4 Ranges and Over-range indications 7.4.1 Ranges Ranges and decimal points for the measuring items will be automatically adjusted depending on the Range selected. A range shifts up when integration vaues exceed 999999. Power Range : WP, WS, WQ, Max : 6-digit Decimal point &...
Page 171 KEW6310 7.4.1 Integration measurement - Ranges 7.10 KEW6310...
Page 172 8.1.1 Demand Measurement – Display Screen KEW6310 8. Demand Measurement 8.1 Indications on LCD 8.1.1 Display Screen Press the Key to view Demand measurement screen. Power source / Time Screen Interval Function KEW6310...
Page 173 KEW6310 8.1.1 Demand Measurement – Display Screen Measurement screen Remaining time (time left)/ Target value/ Predicted value / Present value Measured max demand with time and date information Displayed Details parameters Remaining time Demand interval is counted down. (time left) Target value Should be set for each measurement.
Page 174 8.1.1 Demand Measurement – Display Screen KEW6310 Shifts in specific period Remaining time (Time left) Load factor / Prediction Target demand Prediction Present value Displayed Details parameters Percentage of the present value against the target value. Load Factor (Present value) (Target value) Percentage of the predicted value against the target value.
Page 175 KEW6310 8.1.1 Demand Measurement – Display Screen Demand change Measured demand with time and date information Cursor Target demand Most recent recorded Recording start Bar Graph date and time date and time A long press of Cursor Keys changes pages. Displayed parameters Details Use the...
Page 176 8.1.2 Demand Measurement – W Range / Wh Range display KEW6310 8.1.2 Switching screens Press the Cursor Keys to switch screens. 8.1.3 W Range / Wh Range display It is possible to access the W / Wh Range display screens from the Demand screen. Press the Key.
Page 177 KEW6310 8.2 Demand Measurement – Measuring Procedure 8.2 Measuring Procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Getting started See “Section 3 Getting started”. ↓ Settings See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. ↓...
Page 178 8.3 Demand Measurement – Data Saving KEW6310 8.3 Data Saving Operations within demand intervals Target value Prediction Digital output signal warns when the predicted value Target exceeds the target value. Demand (present value) (Elapsed time) Inspection Inspection Inspection cycle cycle cycle Demand interval Save point...
Page 179 KEW6310 8.3.1 Demand Measurement – Saving procedure 8.3.1 Saving Demand measurement data Saving procedure Inst measurement data is saved as well as demand data when saving demand measurement data. Press the Key at the Measurement screen. Press the Key to check Basic, Measurement and Save Settings. Basic Setting Measurement Setting Save Setting...
Page 180 8.3.1 Demand Measurement – Saving procedure KEW6310 Manually start saving data, or stand-by screen (WAIT) appears if saving start date and time has been specified. Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. Flashes.
Page 181 KEW6310 8.3.2 Demand Measurement – Limitations of saving 8.3.2 Limitations of saving Refer to “6.3.2 Limitations of saving” in this manual. 8.3.3 Saving data Settings FILE ID File name VERSION Version info ID NUMBER ID number WIRING Wiring configuration VOLT RANGE Voltage Range VT RATIO VT ratio...
Page 182 8.3.3 Demand Measurement – Save data KEW6310 Header of the saved data INTVL_WP+[Wh]_1 ① ② ③ ④ ① INTEG Integration value INTVL Variations in interval Total demand TARGET Target value ② Active Power energy (consumption) Active Power energy (regenerating) Apparent Power energy (consumption) Apparent Power energy (regenerating) WQi+ Reactive Power energy (consumption) –...
Page 183 KEW6310 8.4.1 Demand measurement – Ranges 8.4 Ranges and Over-range indications 8.4.1 Ranges Ranges and decimal points for the measuring items will be automatically adjusted depending on the preset target values. Predicted value : DEM G, Present value : DEM P, Target value : DEM T, Max demand : DEM max, Max : 6-digit Max : 4-digit...
Page 184 9.1.1 WAVE Range – Display Screen KEW6310 9. WAVE Range 9.1 Indications on LCD 9.1.1 Display Screen Press the Key to view Vector screen. Switching screens Press the Key to switch Vector and Waveform screens. Vector screen Voltage and current vectors are displayed. Number of Ch for displayed vector depends on the selected wiring configuration.
Page 185 KEW6310 9.1.1 WAVE Range – Display Screen Waveform screen Voltage and current waveforms can be displayed together or displayed channel by channel. Number of Ch for displayed waveform depends on the selected wiring configuration. Measured value at each Ch Power source/ Time Magnification Waveform Function Keys...
Page 186 9.1.2 WAVE Range – Switching displays KEW6310 9.1.2 Switching displays Switching channels (waveform screen) Press the Cursor Keys to switch channels. Displayed parameters depend on the selected wiring configuration. Right table indicates: Wiring configuration ⑬3P4W x 1A (Three-phase 4-Wire (1ch) + 1-current) Details of channels ⑬3P4W×1+1A V_ALL...
Page 187 KEW6310 9.1.2 WAVE Range – Switching displays ①1P2W x 1 ②1P2W x 2 ③1P2W x 3 : V1 A_ALL : A1/A2 A_ALL : A1/A2/A3 V1/A1 V1/A1 : V1/A1 V1/A2 : V1/A2 : V1/A3 ⑤1P3W x 1 ⑥1P3W x 2 ④1P2W x 4 ⑧3P3W x 1 ⑨3P3W x 2 V_ALL :...
Page 188 9.1.3 WAVE Range – Zooming/ downsizing KEW6310 9.1.3 Zooming/ downsizing Magnification Voltage Current * Default value (or after system reset) : 1 Zooming/ downsizing of Voltage display Press the Cursor Key and select the channel to be zoomed in or out, and then press the Key.
Page 189 KEW6310 9.2 WAVE Range – Measuring Procedure 9.2 Measuring Procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Getting started See “Section 3 Getting started”. ↓ Settings See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. ↓...
Page 190 9.3.1 WAVE Range – Saving procedure KEW6310 9.3 Data Saving 9.3.1 Saving Procedure Press the Key at the Vector screen. Press the Key to check Basic, Measurement and Save Settings. Press the Cursor Keys to select and modify the settings. Pressing the Key returns to the previous screen.
Page 191 KEW6310 9.3.1 WAVE Range – Saving Procedure Manually start saving data, or stand-by screen (WAIT) appears if saving start date and time has been specified. Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. Flashes.
Page 192 9.3.2 WAVE Range – Limitations of saving KEW6310 9.3.2 Limitations of saving Refer to “6.3.2 Limitations of saving” in this manual. 9.3.3 Saving data Settings FILE ID File name VERSION Version info ID NUMBER ID number WIRING Wiring configuration VOLT RANGE Voltage Range VT RATIO VT ratio...
Page 193 KEW6310 9.3.3 WAVE Range – Save data Save data File ID : 6310-04 (waveform data) Saved time & date Elapsed time Channel Inst value DATE TIME ELAPSED TIME *Line 1/ Line 2 1 / 128 129 / 256 Ai / Vi (±)x.xxxxE±nn yyyy/mm/d h:mm:ss...
Page 194 9.3.3 WAVE Range – Save data KEW6310 Header of the saved data * File ID: 6310-04 (waveform data) 5/133 ② ① ① 1 ~ 128 : sampling sequence 129 ~ 256 : ditto (① + 128) ② * File ID: 6310-05 (vector data) INST_A1[deg] ①...
Page 195 KEW6310 9.4.1 WAVE Range – Ranges 9.4 Ranges and Over-range indications 9.4.1 Ranges Ranges and decimal points for the measuring items will be automatically adjusted depending on the Range selected. For further details, refer to “6.5.1 Ranges” in this manual. 9.4.2 Over-range / Bar indication Refer to “6.4.2 Over-range / Bar indication Limitations”...
Page 196 10.1.1 Harmonic Analysis – Display Screen KEW6310 10. Harmonic Analysis 10.1 Indications on LCD 10.1.1 Display Screen Press the Key to view bar graph for harmonics. Measured values Power source / Time Channel Function Keys Cursor ① Measured value TOTAL RMS at each Ch THD at each Ch ②...
Page 197 KEW6310 10.1.1 Harmonic Analysis – Display Screen ①1P2W x 1 ②1P2W x 2 ③1P2W x 3 ⑥1P3W x 2 ⑤1P3W x 1 ⑦1P3W x 1+2A ④1P2W x 4 ⑧3P3W x 1 ⑨3P3W x 2 ⑩3P3W x 1+2A ⑪3P3W3A ⑬3P4W x 1+1A ⑫3P4W x 1 10.2 KEW6310...
Page 198 10.1.1 Harmonic Analysis – Display Screen KEW6310 Graph Exceeding axis value MAX hold ON: displayed while it is activated. Exceeding the Allowable range threshold Red bar graph : present value White bar graph : preset allowable range (refer to clause 4.2.2 for further details) Green mark : max recorded value during a measurement, displayed while MAX HOLD function is activated.
Page 199 KEW6310 10.1.2 Harmonic Analysis – Switching displays 10.1.2 Switching displays Switching channels Press the Cursor Keys to switch channels. Press the Cursor to switch values per order. 10.4 KEW6310...
Page 200 10.1.3 Harmonic Analysis – Logarithm display KEW6310 10.1.3 Logarithm display Logarithm and +/- displays can be switched over according to following procedures. Logarithm display Press the Key. Linear display with ticks of 0% to 100% and Logarithm display with ticks of 0.1% to 10% are switchable on vertical axis.
Page 201 KEW6310 10.2 Harmonic Analysis – Measuring Procedure 10.2 Measuring Procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Getting started See “Section 3 Getting started”. ↓ Settings See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. ↓...
Page 202 10.3.1 Harmonic Analysis – Saving procedure KEW6310 10.3 Data Saving 10.3.1 Saving Procedure Press the Key first. Press the Key to check Basic, Measurement and Save Settings. Basic Setting Measurement Setting Save Setting * Pressing down the Key for 2 sec or more skips step 2 and start data saving. For further details of Basic, Measurement and Save Settings, refer to “Section 4 Settings”...
Page 203 KEW6310 10.3.1 Harmonic Analysis – Saving procedure Manually start saving data, or stand-by screen (WAIT) appears if saving start date and time has been specified. Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. .
Page 204 10.3.2 Harmonic Analysis – Limitations of saving KEW6310 10.3.2 Limitations of saving Refer to “6.3.2 Limitations of saving” in this manual. 10.3.3 Saving data Settings FILE ID File name VERSION Version info ID NUMBER ID number WIRING Wiring configuration VOLT RANGE Voltage Range VT RATIO VT ratio...
Page 205 KEW6310 10.3.3 Harmonic Analysis – Save data Header of the saved data 1_[V/A] ① ② ① 1 ~ 63 Order ② Voltage / Current Phase angle File format and name 06 － CF 001 ．csv File Name Measuring item 06 : Harmonic Analysis ①...
Page 206: Power Quality
11. Power quality KEW6310 11. Power Quality Power Quality Waveform Symptoms Adverse effects Inverter and thyristor circuits Burnout of capacitors and (phase-control circuit) are used reactors, buzzes from trans- for the control circuit of general formers, malfunction of circuit devices; these circuits affect beakers, flicker in screen or Harmonic currents and causes harmonics.
Page 207 KEW6310 11.1 Power quality - Display Screen 11.1 Display Screen Press the Key to view List display. Power source / Time 11.2 11.3 11.4 11.6* 11.5 11.7 * Flicker measurement function is only available with ver.2.00 or later. Press the Cursor Keys and select any parameters, and then press the ENTER...
Page 208 11.2.1 Power quality – Display Screen (Swell/ Dip/ Int measurement) KEW6310 11. 2 Swell / Dip / Int measurement 11.2.1 Display Screen Power source / Time Present voltage (needs 3 sec to display) Number of occurrences of Swell / Dip /Int Scroll Bar Duration Date &...
Page 209 KEW6310 11.2.2 Power quality – Measuring Procedure (Swell/ Dip/ Int measurement) 11.2.2 Measuring Procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Getting started See “Section 3 Getting started”. ↓ Settings See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. ↓...
Page 210 11.2.2 Power quality – Measuring Procedure (Swell/ Dip/ Int measurement) KEW6310 Timing of data recording ＜Recording at event occurrence＞ ① <Swell> Trigger Trigger RMS(max) Duration Start of Swell End of Swell 1 10％ 109％（ Swel l ） (Swel l 1 10％－ Hysteresi s 1％ ) 100％...
Page 211 KEW6310 11.2.2 Power quality – Measuring Procedure (Swell/ Dip/ Int measurement) ＜Recording at every interval＞ .* Function available with ver2.00 or later. Inst values* are recorded at every interval. ① ② ③ Interval Ave,max and min* values within each interval are recorded.
Page 212 11.2.3 Power quality – Saving procedure (Swell/ Dip/ Int measurement) KEW6310 11.2.3 Data Saving Saving procedure Press the Key first. Press the Key to check Wiring, Measurement and Save Settings. Wiring check Measurement setting Save setting * Pressing down the Key for 2 sec or more skips step 2 and start data saving.
Page 213 KEW6310 11.2.3 Power quality – Saving procedure (Swell/ Dip/ Int measurement) Manually start saving data, or stand-by screen (WAIT) appears if saving start date and time has been specified. . Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. Flashes.
Page 214 11.2.4 Power quality - Limitations of saving (Swell/ Dip/ Int measurement) KEW6310 11.2.4 Limitations of saving Refer to “6.3.2 Limitations of saving” in this manual. 11.2.5 Saving data Settings FILE ID File name VERSION Version info ID NUMBER ID Number FREQUENCY Frequency REFERENCE VOLTAGE...
Page 215 KEW6310 11.2.5 Power quality - Save data (Swell/ Dip/ Int measurement) Header of the saved data 50～1_1～150 ① When Trigger point has been set to Past : 50 and Next : 150: ① Data No. 201 data pts in total File format and name 07 －...
Page 216 11.3.1 Power quality – Display screen (Transient measurement) KEW6310 11.3 Transient measurement 11.3.1 Display Screen Select “Transient” and press the ENTER Key to view Transient Measurement screen. Power source / Time V peak Time & date of occurrence Function Keys 11.11 KEW6310...
Page 217 KEW6310 11.3.2 Power quality – Measuring procedure (Transient measurement) 11.3.2 Measuring Procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Getting started See “Section 3 Getting started”. ↓ Settings See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. ↓...
Page 218 11.3.2 Power quality – Measuring procedure (Transient measurement) KEW6310 Timing of data recording ＜Recording at event occurrence＞ Trigger Peak(max) start Threshol d 1 10％ 100％ reference Vol t age Next 100 Past 100 Data pts Data pts 201 data pts recorded ＜Recording at every interval＞...
Page 219 KEW6310 11.3.3 Power quality – Saving procedure (Transient measurement) 11.3.3 Data Saving Saving Procedure Press the Key first. Press the Key to check Wiring, Measurement and Save Settings. Wiring check Measurement Setting Save Setting * Pressing down the Key for 2 sec or more skips step 2 and start data saving. For further details of Basic, Measurement and Save Settings, refer to “Section 4 Settings”...
Page 220 11.3.3 Power quality – Saving procedure (Transient measurement) KEW6310 Manually start saving data, or stand-by screen (WAIT) appears if saving start date and time has been specified. . Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. Flashes.
Page 221 KEW6310 11.3.4 Power quality - Limitations of saving (Transient measurement) 11.3.4 Limitations of saving Refer to “6.3.2 Limitations of saving” in this manual. 11.3.5 Saving data Settings FILE ID File name VERSION Version info ID NUMBER ID number VOLT RANGE Voltage Range FEQUENCY Frequency...
Page 222 11.3.5 Power quality - Save data (Transient measurement) KEW6310 Header of the saved data 50～1_1～150 ① When Trigger point has been set to Past : 50 and Next : 150: ① 201 data pts in total Data No. File format and name File format is CSV format and file names are assigned automatically.
Page 223 KEW6310 11.3.5 Power quality - Save data (Transient measurement) 11.18 KEW6310...
Page 224 11.4.1 Power quality – Display screen (Inrush current measurement) KEW6310 11.4 Inrush Current Measurement 11.4.1 Display Screen Select “Inrush current” and press the ENTER Key to view Inrush measurement screen. Power source / Time Current Time & date Function Keys Symbols displayed on the LCD Start to Start...
Page 225 KEW6310 11.4.2 Power quality – Measuring procedure (Inrush current measurement) 11.4.2 Measuring Procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Getting started See “Section 3 Getting started”. ↓ Settings See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. ↓...
Page 226 11.4.2 Power quality – Measuring procedure (Inrush current measurement) KEW6310 Timing of data recording ＜Recording at event occurrence＞ Trigge Trigger RMS(max) Duration Start 1 10％ 109％（ Threshol d (Threshol c val u e1 10％－ Hysteresi s 1％ ) val l u e）...
Page 227 KEW6310 11.4.3 Power quality – Saving procedure (Inrush current measurement) 11.4.3 Data Saving Saving Procedure Press the Key first. Press the Key to check Wiring, Measurement and Save Settings. Wiring check Measurement Setting Save Setting * Pressing down the Key for 2 sec or more skips step 2 and start data saving. For further details of Basic, Measurement and Save Settings, refer to “Section 4 Settings”...
Page 228 11.4.3 Power quality – Saving procedure (Inrush current measurement) KEW6310 Manually start saving data, or stand-by screen (WAIT) appears if saving start date and time has been specified. . Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. Flashes.
Page 229 KEW6310 11.4.4 Power quality –Limitations of saving (Inrush current measurement) 11.4.4 Limitations of saving Refer to “6.3.2 Limitations of saving” in this manual. 11.4.5 Saving data Settings FILE ID File name VERSION Version info ID NUMBER ID number SENSOR TYPE Model name of Clamp sensor CURRENT RANGE Current Range...
Page 230 11.4.5 Power quality – Saving data (Inrush current measurement) KEW6310 Header of the saved data 50～1_1～150 ① When Trigger point has been set to Past : 50 and Next : 150: ① Data No. 201 data pts in total File format and name File format is CSV format and file names are assigned automatically.
Page 231 KEW6310 11.4.5 Power quality – Saving data (Inrush current measurement) 11.26 KEW6310...
Page 232 11.5.1 Power quality - Display Screen (Unbalance rate) KEW6310 11.5 Unbalance rate measurement 11.5.1 Display Screen Select “Unbalance Rate”, and press the ENTER Key to view Unbalance rate measurement screen. Power source / Time Function Keys Switching screens Press the Key.
Page 233 KEW6310 11.5.2 Power quality – Measuring procedure (Unbalance rate) 11.5.2 Measuring Procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Getting started See “Section 3 Getting started”. ↓ Settings See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. * measurements are possible at wiring configurations: ↓...
Page 234 11.5.3 Power quality – Saving procedure (Unbalance rate) KEW6310 11.5.3 Data Saving Saving Procedure Press the Key first. Press the Key to check Basic, Measurement and Save Settings. Basic Setting Measurement Setting Save Setting * Pressing down the Key for 2 sec or more skips step 2 and start data save. For further details of Basic, Measurement and Save Settings, refer to “Section 4 Settings”...
Page 235 KEW6310 11.5.3 Power quality – Saving procedure (Unbalance rate) Manually start saving data, or stand-by screen (WAIT) appears if saving start date and time has been specified. . Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. .
Page 236 11.5.4 Power quality - Limitations of saving (Unbalance rate) KEW6310 11.5.4 Limitations of saving Refer to “6.3.2 Limitations of saving” in this manual. 11.5.5 Saving data Settings FILE ID File name VERSION Version info ID NUMBER ID number WIRING Wiring Configuration VOLT RANGE Voltage Range VT RATIO...
Page 237 KEW6310 11.5.5 Power quality - Save data (Unbalance rate) Header of the saved data AVG_A1[A]_1 ① ② ③ ④ ⑤ ① INST Instantaneous value Average value Max value Min value ② Voltage unbalance rate Current unbalance rate Voltage of each phase Current of each phase Frequency Active power...
Page 238 11.6.1 Power quality - Display(Flicker) KEW6310 11.6 Flicker * Flicker measurement function is only available with ver.2.00 or later. An optional voltage sensor KEW8325F is required for Flicker measurements. 11.6.1 Display Screen Select “Flicker”, and press the ENTER Key to view Flicker measurement screen. Switching screens Pst Intervavl Function Keys...
Page 239 KEW6310 11.6.1 Power quality - Display(Flicker) Measurement screen Max Pst／Max Plt Displayed parameters Details Time left Counted down until a Pst calculation completes. Avg voltage in 1 sec. Refreshed at every 1 min. Pst is displayed at every 1 min.It takes time to calculate Pst.The value displayed Pst(1min.) here before a calculation completes is just for reference.
Page 240 11.6.1 Power quality - Display(Flicker) KEW6310 Measurement screen Time left Pst(1min) Threshold value Trend graph Displayed parameters Details Pst(1min) The latest Pst(1min.) Trend graph Change of the latest 120 data Pst(1min.) can be observed. 11.35 KEW6310...
Page 241 KEW6310 11.6.1 Power quality - Display(Flicker) Measurement screen Plt value Cursor Threshold value Recording period Recording start Bar graph A long press of Cursor Keys changes pages. Displayed parameters Details Press the Cursor Keys to move. Cursor Plt value Plt value with recorded date & time info at where the cursor locates. White bar：percentage of whole pages.(including the hidden pages) Bar graph Blue bar：percentage of the present displayed pages.
Page 242 11.6.2 Power quality – Measuring procedure(Flicker) KEW6310 11.6.2 Measuring procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Preparatin for measurement See “Section 3 Getting started”. ↓ Setting See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. ↓...
Page 243 KEW6310 11.6.3 Power quality – Data saving(Flicker) 11.6.3 Date Saving Saving procedure １ Press the Key first. ２ Press the Key to check Wiring, Measurement and Save Settings. Wiring check Measurement Setting Save Setting ※Pressing down theF1 Key for 2 sec or more skips step and start data saving.
Page 244 11.6.3 Power quality – Data saving(Flicker) KEW6310 Manually start saving data, or stand-by screen (WAIT) appears if saving start date and time has been specified. Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. Destination to save Screen for Preliminary data will be...
Page 245 KEW6310 11.6.4 Power quality – Limitations of saving(Flicker) 11.6.4 Limitations of saving Refer to “6.3.2 Limitations of saving” in this manual. 11.6.5 Saving data Settings FILE ID File name ： VERSION Version info ： PLACE Measuring place signal ： VOLT RANGE Voltage Range ：...
Page 246 11.6.5 Power quality – Saving data(Flicker) KEW6310 Header of the saved data Fresuency ： AVG_V ： Averaged voltage MAX_V Max voltage ： MIN_V Min voltage ： severity evaluated Pst(1min) over a short period (1 ： min) severity evaluated Pst(1) ： over a short period severity evaluated...
Page 247 KEW6310 11.6.5 Power quality – Saving data(Flicker) 11.42 KEW6310...
Page 248 11.7.1 Power quality – Display screen (C calculation) KEW6310 11.7 Capacitance Calculation- Sizing of capacitor banks for Power factor correction (PFC) 11.7.1 Display Screen Select “Capacitance calculation”, and press the ENTER Key to view Capacitance calculation screen. Measured value per CH / Power source / Time Calculated values Sum of measured...
Page 249 KEW6310 11.7.1 Power quality – Display screen (C calculation) Zooming Press the Key. List display Zoom display Press the Key again to return to List display. 11.44 KEW6310...
Page 250 11.7.2 Power quality – Measuring procedure (C calculation) KEW6310 11.7.2 Measuring procedure Steps for measurement Ensuring your safety See “Safety Warnings”. ↓ Getting started See “Section 3 Getting started”. ↓ Settings See “Section 4 Setting”. ↓ Wiring See “Section 5 Wiring Configuration”. ↓...
Page 251 KEW6310 11.7.3 Power quality – Saving procedure (C calculation) 11.7.3 Data Saving Saving Procedure Press the Key first. Press the Key to check Basic, Measurement and Save Settings. Basic Setting Measurement Setting Save Setting * Pressing down the Key for 2 sec or more skips step 2 and start data saving. For further details of Basic, Measurement and Save Settings, refer to “Section 4 Settings”...
Page 252 11.7.3 Power quality – Saving procedure (C calculation) KEW6310 Manually start saving data, or stand-by screen (WAIT) appears if saving start date and time has been specified. . Flashes. File name for saving data is displayed. Saving starts and the LED status indicator lights up. Flashes.
Page 253 KEW6310 11.7.4 Power quality - Limitations of saving (C calculation) 11.7.4 Limitations of saving Refer to “6.3.2 Limitations of saving” in this manual. 11.7.5 Saving data Settings FILE ID File name VERSION Version info ID NUMBER ID number WIRING Wiring Configuration VOLT RANGE Voltage Range VT RATIO...
Page 254 11.7.5 Power quality – Save data (C calculation) KEW6310 Header of the saved data AVG_A1[A]_1 ① ② ④ ⑤ ① INST Instantaneous value Average value Max value Min value ② Voltage of each phase Current of each phase Frequency Active power Reactive power Apparent power Power factor...
Page 255 KEW6310 11.7.5 Power quality – Save data (C calculation) 11.50 KEW6310...
Page 256 * A Compact Flash Card (CF card) may not operate properly even if any of the above are used due to manufacture's specification change, etc. The use of supplied CF Card or optional Kyoritsu CF Card is recommended. Internal memory...
Page 257 KEW6310 12.1 Instrument and CF card / Internal memory Max number of data / Estimated time Internal Destination to save data CF Card Memory Capacity 32MB 64MB 128MB 256MB 512MB 1.8MB 7min 1sec Instantaneous value 1min measurement Over 1Y Over 1Y Over 1Y Over 1Y 30min...
Page 258 12.1 Instrument and CF card / Internal memory KEW6310 Be sure to verify proper operation of CF card on a well-known hardware. As to the manipulation of the FC card, please refer to the instruction manual attached to the card. The available recoding period varies depending on each interval.
Page 259 KEW6310 12.2 Placing / removing the CF card 12.2 Placing / removing the CF card CAUTION * Do not place or remove a CF card while CF card is being accessed. ( ) flashes while CF card is being accessed.) Otherwise saved data in the card or the instrument may be damaged. * Remove the CF card when carrying the instrument.
Page 260 12.2 Placing / removing the CF card KEW6310 How to remove: Open the CF card cover. The card can be removed by pushing the Eject button beside the card connector. The Eject button is being pressed down. Remove the card, and then close the CF card cover. 12.5 KEW6310...
Page 261 KEW6310 12.3 CF card / Internal memory 12.3 CF card and Internal memory Formatting CF card Format the CF card to be used when using it at the first time. * Only the CF cards formatted via FAT system can be used with this instrument. Confirm that the instrument is off, and place the CF card.
Page 262 12.3 CF card / Internal memory KEW6310 File format and name ● Measurement file (CSV file) ① Function identification code W Range Measurement data Wh Range Measurement data DEMAND Range Measurement data Waveform Measurement data Vector Measurement data Harmonics Measurement data Swell/ Dip/ Int Measurement data Transient Measurement data Inrush current Measurement data...
Page 263 KEW6310 12.3 CF card / Internal memory ● Image file (BMP file) ① Print Screen Fixed ② Destination identification code CF card Internal memory ③ File number 001 ~ Number increases one by one after every recording. It restores to 001 after system reset. ④...
Page 264 12.4 Backup memory KEW6310 12.4 Backup memory The Internal memory works as a backup memory when a CF card has been selected as a destination for saving data. If writing data to the CF card fails during saving, data will be written in the backup memory instead.
Page 265 KEW6310 12.4 Backup memory Data processing in Backup memory One CF card is placed/ removed during saving data; Saving ① A file is created in the CF card, when CF card is selected as a destination for saving data, and measurement data is saved to the CF card.
Page 266 12.4 Backup memory KEW6310 Saving completes Backup files in the internal memory are automatically transferred to the last available space in a CF card. (Time-series is as follows.) KEW6310 CF card Internal memory 01-CF001.csv 01BCF001.csv ① ③ ② transfer ④ ⑤...
Page 267 KEW6310 12.4 Backup memory 12.12 KEW6310...
Page 268: System Requirements
13. Communication function / Interface software KEW6310 13. Communication function/ Interface software ● Interface This instrument is equipped with USB interface. Communication method: USB Ver1.1 Followings can be done by USB communication: * Downloading a file in the internal memory of the instrument to PC * Making settings of the items on SET UP Range via PC.
Page 269 KEW6310 13.1 Software installation 13.1 Software Installation (KEW PQA MASTER) Followings shall be checked before installing “KEW PQA MASTER”. * To prepare your system to install this software, please close all open programs. * Be sure NOT to connect the instrument with USB until install is completed. * On Windows2000/ XP, install shall be done with administrative right.
Page 270 13.1 Software installation KEW6310 Enter the user information and specify the location to where install the software. Then click “Next”. Confirm the information on install, and click “Install” to start installing. Click “Finish” when install completes. NOTE * If you need to remove “KEW PQA MASTER”, use the "Add/Remove Programs" tool in Control Panel. 13.3 KEW6310...
Page 271: Usb Driver Installation
KEW6310 13.2 USB driver installation 13.2 USB driver installation Connect one end of a USB cord to your PC. Connect the other end of USB cord to the instrument. When your PC and the instrument are connected properly, install starts. Click “Install the software automatically (recommended)”, and insert the “KEW PQA MASTER”...
Page 272 13.2 USB driver installation KEW6310 In case that following window appears on Windows XP, click “Continue anyway”. (It is an operation check, and no problem happens if install is continued.) Install is completed when the wizard finishes. Click “Finish”. NOTE * When install of the driver is interrupted and reinstall cannot be done, or when install cannot be done properly, refer to “13.4 USB driver un-installation”...
Page 273 KEW6310 13.3 Starting KEW PQA MASTER 13.3 Starting “KEW PQA MASTER” ● Start and quit Start the software by; 1) clicking the icon for [KEW PQA MASTER] on the desktop, or 2) clicking [Start] → [Program] → [KEW] → [KEW PQA MASTER]. Then the main window for “KEW PQA MASTER”...
Page 274 13.4 USB driver un-installation KEW6310 13.4 USB driver un-installation When install of the USB driver is interrupted and reinstall cannot be done, follow the procedure below and delete the existing USB driver. Then install it again. Connect a PC and the instrument with a USB cord. Click [Control Panel] in the Start menu at the lower left on the Windows screen.
Page 275 KEW6310 13.4 USB driver un-installation 13.8 KEW6310...
Page 276 14.1 Input/ Output terminals KEW6310 14. Other functions 14.1 Input/ Output terminals Input terminal Output terminal Connection Press the recutangular protrusion above a terminal with a flar-blade screw driver, and insert a signal wire. Release the driver and fix the wire. Flat-blade screwdriver Signal wire Connect wires to the proper terminals.
Page 277: Input Terminal
KEW6310 14.1 Input/ Output terminals [Input terminal] Capable of measuring and recording DC voltage signals. Number of Ch: 2ch Input resistance : approx 225kΩ CAUTION Roots of the L terminals for each Ch are integrated. Never connect inputs with various grand levels to the terminal at the same time.
Page 278 14.2 Getting power from measured line KEW6310 14.2 Getting power from measured lines When there is difficulties in getting power from an outlet, KEW6310 operates with powers on the measured line by using Voltage test leads with Power supply adapter MODEL8312. Connect the Adapter according to following procedure.
Page 279 KEW6310 14.3 Auto-ranging 14.3 Auto-ranging Auto-ranging function is available at W, Wh, DEMAND and WAVE Ranges. Current values in wide range can be measured with this function; it is helpful when load capacitances vary dramatically according to day and time. ●...
Page 280: Troubleshooting
KEW6310 15. Troubleshooting 15.1 General troubleshooting When defect or breakdown of the instrument is suspected, check the following points first. If your problem isn’t listed in this section, contact your local Kyoritsu distributor. Symptom Check (1) Instrument cannot be operating with an AC power supply powered on.
Page 281 KEW6310 15.2 Error messages and actions Symptom Check (6) Data cannot be saved in a ● CF card is inserted correctly? CF card. ● CF card has been formatted? ● Is there available space in a CF card? ● Destination for saving data is set to “CF card”? ●...
Page 282 15.2 Error messages and actions KEW6310 Message Detail & Action “ Max number of file is exceeded. ” Unnecessary data should be deleted or format is required. See “4.2.3 Save setting”. “ No space in CF card; start recording Remove the CF card and make available space, and then insert in internal memory.
Page 283 KEW6310 15.2 Error messages and actions 15.4 KEW6310...
Page 284: General Specification
16.1 General specification KEW6310 16. Specification 16.1 General specification Location for use : In door use, Altitude up to 2000m Temperature & humidity range : 23ºC±5ºC, Relative humidity 85% or less (guaranteed accuracy) (no condensation) Operating Temperature & : 0ºC±40ºC, Relative humidity 85% or less humidity range (no condensation) Storage Temperature &...
Page 285 KEW6310 16.2 Inst measurement 16.2 Inst measurement ( Range) (1) Voltage Vi [V] Range 150/ 300/ 600V/ 1000V Display digit 4 digits Allowable input 10 ~ 110% of each range (1000V range : 20%~) Display range 5 ~ 120% of each range Crest factor 2.5 or less (100% or less of each range) Accuracy...
Page 286 16.2 Inst measurement KEW6310 (6) Item and formula Apparent power S [VA] Display digit same to the indication for active power × 1P2W ×1 Formula × ×2 ， × ) 3 , ×3 ， × , 3 , ， ×4 ×...
Page 287 KEW6310 16.3 Integration measurement Power factor PF Display digit -1.000 ~ 0.000 ~ 1.000 Mark : leading phase : lagging phase Formula 1P2W ×1 PF = ×2 PF = ， ×3 PF = ， ×4 PF = ， 1P3W ×1 PF = ，...
Page 288 16.3 Integration measurement KEW6310 Apparent power energy WS [VAh] Consumption : Display item − Regenerating : 0.00VAh ~ 999999GVAh Display range − (Display digit and unit are unified to the bigger ones of Consumption Formula ∑ Each phase : (WS+) ∑...
Page 289 KEW6310 16.4 Demand measurement 16.4 Demand measurement ( Range) (1) Target value (DEM Target) Fixed set value (1.000mW ~ 999.9TW) Display range (2) Predicted value (DEM Guess) Display range Same decimal point place and unit to target value Demand interval ∑...
Page 290 16.7.1 Swell/ Dip/ Int measurement KEW6310 16.7 Power quality ( Range) 16.7.1 Swell/ Dip/ Int measurement Meas. Method Calculate RMS values based on an overlapped waveform at every half waveform. Judges the presence of events at every 1s. Detection CH VN - V1 Display item (1) 1-sec avg...
Page 291: Section 16 Specification ···················································································································
KEW6310 16.7.5 Capacitance calculation 16.7.5 Capacitance calculation Display item Same to W Range (except for the change from PA to C) Save item (Measurement data at W Range) + (calculated capacitance value) Formula ⎛ ⎞ ⎛ ⎞ × − ⎜ ⎟...
Page 292 16.8 Other specifications KEW6310 (4) Battery check function Power supply Battery voltage [V] (±0.2V) Mark Rechargeable Dry battery battery AC power supply Effective 20 ~ 100% 6.0 ~ 10.5V 6.9 ~ 10.5V DC power supply range (by 20%) (battery) Warning 6V or less 6.9V or less * AC power supply has priority.

KYORITSU KEW 6310 Instruction Manual

Section 1 Instrument Overview

Section 2 Instrument Layout

Section 3 Getting Started··············································································································· 3.1

Section 4 Setting

Section 5 Wiring Configurations

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Troubleshooting

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