Instruction Manual
CLAMP POWER METER
KEW 2060BT
Page 1: ...Instruction Manual CLAMP POWER METER KEW 2060BT...
Page 2: ...Frequency of nominal voltage 19 System reset 20 Chapter 6 Display items by measurement function 21 6 1 RMS Frequency measurement 21 RMS current frequency 21 RMS voltage frequency 22 6 2 Single Three...
Page 3: ...asterisk features 39 Chapter 9 Specifications 40 9 1 Safety specifications 40 9 2 General specifications 40 9 3 Measurement specifications 41 AC current function 41 AC Voltage function 42 Power functi...
Page 4: ...tructions before starting to use the instrument WARNING Read through and understand the instructions contained in this manual before using the instrument Keep the manual at hand to enable quick refere...
Page 5: ...safety standards for various electrical environments categorized as O to CAT IV and called measurement categories Higher numbered categories correspond to electrical environments with greater momentar...
Page 6: ...d voltage against earth Keep your fingers behind the barrier during a measurement Barrier provides protection against electrical shock and ensuring the minimum required clearance and creepage distance...
Page 7: ...rent sensors while the instrument is off Don t use the instrument at dusty places or to be spattered Don t use the instrument under a strong electric storm or in the vicinity of energized object Never...
Page 8: ...ree phase 4 wire Large diameter clamp sensor The current clamp sensor is able to clamp onto a wire up to 75mm in diameter or a buster up to 80mm width safely Measurement and calculation KEW 2060BT can...
Page 9: ...ue PEAK crest factor absolute value Backlight button 2 A long press turns on off the backlight Item switching button A short press toggles displayed items in sequences 1 Function ranges related to cur...
Page 10: ...cy 3 2 Buttons and switches Function Buttons and switches Details Data hold button Hold down the Data hold button until the LCD shows symbol then the currently displayed value is held While this funct...
Page 11: ...hort press during a measurement Switches the phase to be measured from R L1 to T L3 A short press while displaying the measured result Toggles displays Three phase active power R L1 phase active power...
Page 12: ...thing is displayed for balance measurement Wiring configuration No indication for single phase Total power when either P1 or P2 is displayed it indicates the power of the single phase according to the...
Page 13: ...tteries with new ones and try again 4 2 Battery level check DANGER Never try to replace batteries during a measurement WARNING Before opening the battery compartment cover for battery replacement disc...
Page 14: ...tremely low and the instrument doesn t work normally Stop using the instrument and replace the batteries with new ones immediately The instrument continues measurement even in this state however Bluet...
Page 15: ...d toAC voltage input terminal on the instrument The number of test leads to be connected depends on the wiring configuration 4 4 Connection to the measured object The following should be checked befor...
Page 16: ...d ensuring the minimum required clearance and creepage distances For accurate measurement The declared measurement accuracy is guaranteed where the conductor to be measured is placed at the center of...
Page 17: ...ayed items Press the item switching button to toggle the displayed items and confirm the desired item with the mode button Alter the values of each item with the item switching button and then press t...
Page 18: ...The display range when setting VT or CT ratio is between 0 000 and 9999 RMS voltage current and between 0 000k and 9999k power Please take the display range into consideration when setting VT or CT ra...
Page 19: ...easurements on a circuit in which the electrical potential exceeds these values Always clamp the secondary side of VT or CT transformer Do not open circuit the secondary side of CT while it is energiz...
Page 20: ...on Then ON on OFF oF starts blinking and now it is ready to change the setting Item switching button on Turns off in 5 min oF Disables auto off function Press the mode button to confirm the changes Th...
Page 21: ...ts blinking that means it is ready to change the setting Item switching button n Cancel y Performs system reset Select y and press the mode button Then system reset will be done and the display return...
Page 22: ...function activates and switches the current range depending on the measured value A short press of Mode button switches display modes between Inst MAX MIN AVG and PEAK Each of above values is determin...
Page 23: ...ve values is determined after pressing the mode button and measurements get started A long press of Mode button clears measured values MAX MIN AVG and PEAK Instantaneous value MAX Max value MIN Min va...
Page 24: ...ring system in the selection screen Single phase 2 wire 1P2W Three phase 3 wire 3P3W Three phase 4 wire 3P4W Balance Balance Connection diagram for Single phase 2 wire 1P2W Connection diagram for Sing...
Page 25: ...Connection diagram for balance Three phase 3 wire 3P3W Connection diagram for balance Three phase 4 wire 3P4W 24 KEW 2060BT KEW 2060BT Connection diagram for balance Three phase 3 wire 3P3W...
Page 26: ...tches display modes between Inst MAX MIN and AVG Each of above values is determined after pressing the mode button and measurements get started Long press clears measured values MAX MIN and AVG Exampl...
Page 27: ...phases individually Set the function switch to Select wiring system in the selection screen Three phase 3 wire 3P3W Three phase 4 wire 3P4W Unbalance Unbalance Three phase 3 wire 3P3W unbalance Measu...
Page 28: ...sition of test leads Press the item switching button after making connection the LCD shows active power of T L3 phase Pressing mode button switches the indications between active power and RMS voltage...
Page 29: ...easured values to be displayed in the LCD Total active power Active power of R L1 Active power of T L2 A long press of mode button clears measured results and the screen returns to the initial screen...
Page 30: ...re 3P4W unbalance Measurement procedures Clamp onto R L1 phase Clamp onto S L2 phase Clamp onto T L3 phase Result display Mode button Mode button Mode button 29 KEW 2060BT Three phase 4 wire 3P4W unba...
Page 31: ...ment object from R L1 to S L2 Clamp onto S L2 phase While the LCD is showing the settings for 2nd measurement make connection as the following figure shows move the current sensor and red test lead to...
Page 32: ...es of T L3 phase Another press of item switching button switches the screens to measurement result Result display Item switching button Short press switches measured values to be displayed in the LCD...
Page 33: ...means the screen is voltage harmonics measurement screen Hold down long press the Item switching button to switch the unit to A Item switching button A short press toggles the displayed measured value...
Page 34: ...en Instantaneous value MAX Maximum value AVG Average value MIN Minimum value Range is fixed while the LCD is showing MAX MIN or AVG The auto ranging function is reactivated when switching the display...
Page 35: ...ch harmonics these two switches every second Mode button A short press switches display mode between Inst MAX MIN and AVG Each of above values is determined after pressing the mode button and measurem...
Page 36: ...s That is at low distortion levels the difference between the two calculation methods THD F and THD R is negligible but at large distortion levels THD F can get more accurate results With the former m...
Page 37: ...to According to the wiring system of Three phase 3 wire and Three phase 4 wire to be tested the results are displayed as the following table shows Each number represents the connected phase order Wiri...
Page 38: ...ght in this case hold down the Item switching button Auto power off Note If the instrument is off with the function switch set to a measurement position auto power off function might activate and turn...
Page 39: ...tion we assume no responsibility for any released content Some tablet devices even if the application runs properly may fail to establish communi cation with the instrument Please use another tablet d...
Page 40: ...communication charge is incurred separately for downloading applications and using special features of them For your information KEW Power is provided on line only Main features of KEW Power 1 Remote...
Page 41: ...ement CAT IV 600 V CAT III 1000 V Pollution degree 2 IEC 61326 EMC Class B EN50581 RoHS EN 301 489 1 EN 300 328 EN 62479 and IEC 60529 IP40 9 2 General specifications Readings update rate Approx 0 5 s...
Page 42: ...to 999 9 A PEAK value 60 A to 1414 A Display range RMS value 40 00A range 0 30 to 44 00 A 400 0A range 3 0 36 0 A to 440 0 A 1000A range 30 360 A to 1100 A While auto ranging is enabled values displa...
Page 43: ...70 0 Hz 0 7 rdg 3dgt 70 1 to 1 kHz 3 0 rdg 5dgt Add 0 5 rdg 5dgt to the accuracy for sine waves other than 40 to 70 Hz PEAK value absolute value 40 0 to 70 0 Hz 2 5 rdg 5dgt 70 1 to 1 kHz 4 0 rdg 5dgt...
Page 44: ...tive input frequency Accuracy For sine wave with power factor 1 1 7 rdg 5dgt influence of phase angle within 3 0 where within the effective input range for ACV and ACA functions PF 1 sine wave and 45...
Page 45: ...sum Q 3 3P4W unbalance Qsum Q1 Q2 Q3 Qn Reactive power at the nth measurement Apparent power S VA Range Same as the active power Display digit Same as the active power Effective input range Same as th...
Page 46: ...0 99 0 92 and 0 96 difference between 0 99 and 1 0 01 advance difference between 0 92 and 1 0 08 delay and difference between 0 96 and 1 0 04 advance The total difference will be 0 01 0 08 0 04 0 03 d...
Page 47: ...Rectangular Number of analysis data 256 points Analysis rate Once 500 ms Harmonics RMS voltage Vk 1st fundamental wave to 30th harmonics Vrms Range Display digit effective input range Same as the RMS...
Page 48: ...alculated results of each order Formula k Harmonics order Ar Real number after current FFT conversion Ai Imaginary number after current FFT conversion Total harmonics voltage distortion factor V THD F...
Page 49: ...monics current k Harmonics order Phase detection function Effective input range RMS voltage ACV 80 to 1100 V when measured waveform is 45 to 65 Hz sine wave If there s no phase differences between eac...
Page 50: ...11 19 92 2373A 11 19 92 2373 Distributor Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations...
