Clamp-on Power Meter
Contents
1. User s CW10 Manual DIVIENFIVA Clamp on Power Meter COMRRABIS WOCHEACESES AUICRBLTERSL Store this manual in safe place for future reference SSS IE I Oa ee a IM CW10 JA Japanese YOKOGAWA gt IM CW10 EN English TIEA IAIA RASA 3rd Edition Mar 2012 Yokogawa Meters amp Instruments Corporation m Regarding Safe Use of This Product When operating the instrument be sure to observe the cautionary notes given below to ensure correct and safe use of the instrument If you use the instrument in any way other than as instructed in this manual the instrument s protective measures may be impaired Yokogawa is by no means liable for any damage resulting from use of the instrument in contradiction to these cautionary notes The following safety symbols are used on the instrument and in this manual Danger Handle with Care This symbol indicates that the operator must refer to an explanation in the User s Manual in order to avoid risk of injury or death of personnel or damage to the instrument Hazardous Voltage This operator must never attempt to touch equipment or parts marked with this symbol This symbol indicates double insulation or reinforced insulation oS e This symbol indicates DC voltage current This symbol indicates AC voltage current H This symbol indicates ground earth This symbol indicates a battery This symbol indicate2. When performing a measurement hold the instrument so that the measured conductor cable runs at the center of the clamp e Ensure that the orientation of the clamp to the direction of the conductor wire is correct as shown right 5 NG The conductor position The measurd conductor I 1 0 8 Others Function 8 1 AUTO SENSE Using Auto Sense mode the CW10 automatically detects AC or DC The detection is determined by whichever input is greater To select manual mode Example DC mode Use the cursor key to select under DC flash and then press the ENTER key to confirm Upper DC indication is fixed and AUTO AUTO RANGE is displayed To return AUTO SENSE press the ENTER key for more than 2 sec AUTO SENSE AC 8 2 RANGE To select manual range fixed Use the cursor key to select RANGE and then press the ENTER key to confirm To cancel manual range press the ENTER key for more than 2 sec Example ACV 100 V range 1000 V range AC On Auto sense mode the measuring range is automatic 8 3 Peak Hold AC mode only 1 AC Voltage Turn the function switch to the voltage V position After using the ENTER key to confirm AC mode use the cursor key to select Peak Hold NM and then press the ENTER key to confirm Press the ENTER key to switch between PEAK MAX polarity and PEAK MIN polarity To cancel Peak Hold press the ENTER key for more than 2 sec NOTE Bar grap
3. 100 Vand 100A 100 kW range 100 V and 600 A or 1000 V and 100 A 600 kW range 1000 V and 600 A Other combinations Accuracy Current accuracy x Voltage reading Voltage accuracy x Current reading Maximum input voltage and current 1000 Vrms 600 Arms ACW ACV210 Vrms and ACA25 Arms Sine wave 50 lt f lt 60Hz PF 1 00 DCW at DCV210 V and DCA25 A after DCA zero adjustment 8 Power Factor F Resolution A unction Measuring range ccuracy Ra 1 00 0 00 1 00 3 2digi faclor 1 i 5 3 2digits Maximum input voltage and current 1000 Vrms 600 Arms PF ACV210 Vrms and ACA25 Arms Sine wave 50 lt f lt 60Hz eee Qa 9 Resistance Continuity check Resolution Function Range Maximum reading Accuracy Ha 1000 Q 999 9 Q 1 0 5 esistance f Foko 9 999 KQ Q 1 0 3 100 KQ 99 99 KQ 1000 Q 999 9 Q 1 0 5 Continuity check The buzzer turns on for resistances lower than approx 300 Response time approx 100m sec Maximum input voltage 1000 Vrms Maximum test current approx 0 56mA Open circuit voltage approx 3V 10 Diode Test gt Functi Resolution Acour uncon Measuring range ccuracy Di age 0 40 0 80 V 40 1V Test Maximum test current approx 0 6mA Open circuit voltage approx 1 8V 25 11 Maintenance and After Sales Service Please direct question about this product to the contact listed on the
4. press the HOLD key again 8 8 Harmonic Measurement AC mode only 8 8 1 THD Measurement Harmonic measurements fundamental wave to 25th harmonics can be displayed In ACV or ACA mode after confirming AC using the ENTER key use the cursor key to select THD and then press the ENTER key to confirm Press the ENTER key to toggle between the rms value and the distortion factor 5 2 nth order harmonic voltage curent rms value 2 THD F 2 x100 fundamental wave voltage curent rms value 2 TT lt u THD ENTER 13 8 8 2 Individual Harmonic Measurement Harmonic measurements individual order fundamental wave to 25th can be displayed In ACV or ACA moda er confirming AC using the ENTER key use the cursor key to select and then press the ENTER key to confirm To cancel the function press the ENTER key for more than 2 sec nth order harmonic voltage current rms value m x100 fundamental wave voltage current rms value AC ENTER wire TI gt 2sec LILII OK T I u RIGHTWARD At na TL i hy e im LEFTWARD UPWARD I a O z DOWNWARD RIGHTWARD gt qu LEFTWARD 8 9 Low pass filter AC mode only The CW10 has a function for turning the filter on use off On ACV or ACA mode using ENTER key to confirm AC Using the cursor key to select LPF and then press the ENTER key to confirm pa n NOTE Cut of
5. 0 5 3 10 kHz 0 020 to 9 999 kHz Maximum input voltage and current 1000 Vrms 600 Arms Input condition 100 V range 10 to 100 Vrms Sine wave 1000 V range 100 to 1000 Vrms 100 A range 10 to 100 Arms lt 400Hz 600 A range 100 to 600 Arms lt 400Hz The measured value lt approx 10 Hz 0 00Hz 5 Harmonic Measurement Individual Harmonic Harmonic Resolution r order Maximum reading ccuracy 1st to 12th h01 h12 5 10 13th to 25th 99 9 Rae ae h13 h25 oak Maximum input voltage and current 1000 Vrms 600 Arms The rdy is displayed at ACV lt 10 Vrms ACA lt 10 Arms The OutF is displayed at f lt 45 65 lt f f fundamental frequency 6 Inrush Current Resolution Function Range Maximum reading Accuracy ACA 100A 99 99 A 2 5 20 600A 600 0 A 2 5 5 Maximum input current 600 Arms 600 A Guaranteed accuracy not maximum reading 100A range ACA210 Arms Sine wave 50Hz 60Hz 600A range ACA2100 Arms Sine wave 50Hz 60Hz Measurement time approx 100ms 24 7 Active Power w F x R Resolution A unction ange Maximum reading ccuracy ACW a CE ACW 2 5 11 DCW 100 kW 93 99 KW Dew 22 x 20 600 kW 600 0 kW paca The measured value lt 1 000kW add 1Odigits to the accuracy 600 kW Guaranteed accuracy not maximum reading Conditions of accuracy combination of Voltage and Current range 10 kW range
6. CF 3 2 Current a Rms value detection Resolution Function Range Maximum reading Accuracy DeK 100 A 99 99 A 1 5 20 600 A 600 0 A 1 5 5 ie 100 A 99 99 A 508 fS60Hz 1 5 5 600 A 600 0 A 60 lt fS400Hz 2 0 5 tee 00S pees 50S f 60Hz 1 5 5 ACA 600 A 600 0 A 60 lt fS400Hz 5 0 5 The measured value lt 1000digits add 5digits to accuracy Input current 2 0 10A at 100 A range of ACA and LPF ACA 600 A Guaranteed accuracy not maximum reading Maximum input current 600 Arms 848 5Apk Conductor position effects 1 0 of reading AC DC accuracy ACA accuracy DCA accuracy Crest factor effects 1 4 lt CFS 2 0 add 1 0 of reading to accuracy 2 0 lt CFS 2 5 add 2 5 of reading to accuracy 2 5 lt CFS 3 0 add 4 0 of reading to accuracy Maximum input current 420 Arms CF 2 280 Arms CF 3 DCA accuracy after DCA zero adjustment 23 3 Peak Hold AC mode only F R Resolution A unction ange Maximum reading ccuracy 100 V 140 0 V ACV T000 V aa 3 0 15 100 A 140 0 A ACA 3 0 15 600 A 850 A 7 PEAK MAX polarity polarity Maximum input voltage and current 1000 Vrms 600 Arms Sine wave ACV gt 5 Vrms ACA 2 5 Arms 50 to 400 Hz continuous wave 4 Frequency Hz s Resolution Function 3 Accuracy Measuring range 100 Hz 20 00 to 99 99 Hz 1000 Hz 20 0 to 999 9 Hz
7. and the case the core and the voltage input terminals and the voltage input terminals and the case Compliant standards Safety standards EN 61010 1 EN 61010 2 032 1000V CAT III 600V CAT IV EN 61010 031 the test leads Pollution degree 2 Indoor use Altitude 2000m or less EMC standards EN 61326 1 Class B EN 61326 2 1 EN 61326 2 2 EN 55011 Class B Group 1 Dimensions Approx 87 5 mm W x 242 mm L x 51 mm D Diameter of measurable conductors 37mm Maximum Weight Approx 435g including the battery Accessories Test leads 1set Red and Black Soft case 93044 9V alkaline battery 6LR61 User s Manual 22 10 2 Accuracy 23 5 C 80 RH or less Accuracy of reading digits 1 Voltage v Rms value detection Resolution A Function Range Maximum reading ccuracy 100 V 99 99 V DCV 0 7 2 E 1000 V 999 9 V ig Ache 100 V 99 99 V 1 0 5 1000 V 999 9 V 50 500Hz Lpr 100V 99 99 50S fS60Hz 1 0 5 ACV 1000 V 999 9 V 60 lt f 400Hz 5 0 5 DCV lt 1000digits add 6digits to accuracy ACV lt 1000digits add 3digits to accuracy Maximum input voltage 1000 Vrms 1414 2 Vpk Input impedance approx 3 5MQ lt 100pF AC DC accuracy ACV accuracy DCV accuracy Crest factor effects 1 4 lt CFS 2 0 add 1 0 of reading to accuracy 2 0 lt CFS 2 5 add 2 5 of reading to accuracy 2 5 lt CFS 3 0 add 4 0 of reading to accuracy Maximum input voltage 690 Vrms CF 2 460Vrms
8. back of this manual or to your nearest Yokogawa dealer Recommended calibration period 1 year 12 Disposing the Product 12 1 Disposing the Product This directive is valid only in the EU This product complies with the WEEE Directive 2002 96 EC marking requirement The following marking indicates that you must not discard this electrical electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE directive Annex 1 this product is classified as a Monitoring and Control instrumentation product When disposing products in the EU contact your local Yokogawa Europe B V office Do not dispose in domestic household waste 12 2 How to Replace and Dispose the Batteries This is an explanation about the new EU Battery Directive DIRECTIVE 2006 66 EC This directive is valid only in the EU Batteries are included in this product When you remove batteries from this product and dispose them discard them in accordance with domestic law concerning disposal Take a right action on waste batteries because the collection system in the EU on waste batteries are regulated Battery type Alkaline dry cell Notice The marking see above which is marked on the batteries means they shall be sorted out and collected as ordained in ANNEX II in DIRECTIVE 2006 66 EC How to remove batteries safely For further details see 9 2 Battery Replacement 26 13 Measure for
9. come to your attention however please inform Yokogawa accordingly Contents E Regarding Safe Use of This Product Contents Checking the Contents of the Package Measurement Category Components Display LCD Power ON OFF and Auto power off Cursor ENTER key Making Basic Measurements 7 1 Measuring Voltage 7 2 Measuring Current 8 Others Function 8 1 AUTO SENSE 8 2 RANGE 000 8 3 Peak Hold AC mode only 8 4 Inrush current AC mode only 8 5 DCA ZERO 8 6 Measuring Frequency Hz AC mode only 8 7 MAX MIN 8 8 Harmonic Measurement AC mode only 8 8 1 THD Measurement 8 8 2 Individual Harmonic Measurement 8 9 Low pass filter AC mode only 8 10 Measuring Active Power 8 10 1 Single phase 2 wire 8 10 2 3 phase 3 wire balanced unbalanced 8 10 3 3 phase 4 wire balanced unbalanced 8 10 4 Phase Rotation 8 11 Measuring Resistance 8 11 1 Resistance Q 8 11 2 Continuity Check 8 11 3 Diode Test 8 12 HOLD 8 13 Voltage Sense 8 14 Buzzer 8 15 Additional Power on Function 9 Battery State display and Battery Replacement 9 1 Battery State display 9 2 Battery Replacement 10 Specifications 10 1 General Specifications 10 2 Accuracy 11 Maintenance and After Sales Service 12 Disposing the Product 12 1 Disposing the Product 12 2 How to Replace and Dispose the Batteries a 13 Measure for Administration of the Pollution Control of Electro
10. frequency approx 1 kHz 14 8 10 Measuring Active Power ZA warnina Do not apply more than 1000 VDC or 1000 Vrms 1414 2 Vpk Do not apply more than 600 ADC or 600 Arms 848 5 Apk 8 10 1 Single phase 2 wire lt 1 gt Turn the function switch to the Active power W position lt 2 gt Connect the red test lead to Line and the black test lead to N lt 3 gt Squeeze the open close lever to open the jaws and clamp them onto the wire under test Ensure that the jaws are properly closed and the conductor runs thru the center of the clamp lt 4 gt When measuring Active power Use the cursor key to select W and then press the ENTER key to confirm When measuring Power factor Use the cursor key to select PF and then press the ENTER key to confirm Power source NOTE The symbol on the jaw must face on the power source side In Auto sense mode The CW10 can detect ACW or DCW automatically Overload over range Description OL U Voltage overload OL A Current overload OL UA Both Voltage and current overload OL kW OL kW Active Power gt 1000 kW or lt 1000 kW Active power polarity Non display Indicates the power flows from the power source to the load Minus Indicates the power flows from the load to the power source Power factor polarity Non display The phase of the current signal is lagging behind the voltage signal inductive loa
11. 10 1 Is a precision sensor for detecting currents 2 When the jaws are open the light will illuminate 3 In case voltage is detected by the jaw the red LED lights up 4 Prevents contact with the wires 5 Retains the measured data or DCA ZERO Zero adjustment 6 Use this switch to turn the power on and off and to select the measurement mode 7 Opens and closes the jaws 8 LCD display 9 Cursor and Enter key 10 Input terminals for test leads NOTE There is the 1t mark on the terminal but this device does not have a function for measuring capacitance 4 Display LCD ren Mii eggen panny ym myn Wipe WV oh HOLD gt AUTO SENSE ZERO INRUSH AC DC PEAK MAX MIN LPF ZEUEUEED Ae kW FLY AT ra Ly kQHz MW THOPF tRST Hz CAC DCF AC DC i MAXMIN LPF RANGE 5 Power ON OFF and Auto power off Turn the function switch to the measurement any position from OFF To end measurement turn the function switch off lt Auto power off gt APO This instrument automatically turns off approx 15 minutes after the last switch operation Recovering the Auto power off function Turn off the power Turn on the power When the function is not use cancellation Turn off the power Hold down Downward of cursor key turn the function switch to any position The APO display goes off If the instrument is used with the Auto power off function cancelled take care not to let the battery run down 6 Cursor ENTER k
12. 5Hz lt Frequency 17 Red Black Line1 gt Line 2 Line 3 Black N URS l 1 Th lt 4 gt L2 is displayed and then buzzer beeps twice Switch over the red test lead to connect to the phase Line2 immediately before L2 disappe lt 5 gt After L2 disappears the following testing result is displayed ars RST TRST RST RST RST e 4 Wea RST Indication testing result Explanation 123 Forward sequence The phase Line1 is ahead of Line2 321 Reversed sequence The phase Line2 is ahead of Line1 It is not possible to judge LoU It is possible that you remove the test leads before completing the whole testing procedures lt 6 gt To repeat the test use the cursor key to select RST again and then press the ENTER key to confirm 18 8 11 Measuring Resistance caution To avoid damage to instrument Turn off the power to the circuit under test before starting measurement in order to prevent any excessive voltage from being applied to the instrument Qan On measuring resistance SP use AUTO SENSE mode to measure three items automatically Resistance Continuity check and Diode test NOTE Maximum open circuit voltage Resistance continuity check Approx 3 V Diode test Approx 1 8 V 1 8 V Manual setting When you do not use t
13. A decrease in the battery voltage is displayed in the following four steps Replace the battery as soon as the low battery 4 Replacement indicator appears to avoid inaccurate reading 1 2 3 4 m m gt Full 2 3 1 3 Replacemeni 9 2 Battery Replacement Z warnine Turn the function switch to OFF and remove the test leads before the battery case is opened Insert the battery correctly to the holder with their polarities Replacement 21 10 Specifications 10 1 General Specifications Display count 9999 6000 Measuring rate 3 times sec Over range indicator OL or OL Auto Power Off Approx 15 minute Low battery indicator l four steps Power supply 9V alkaline battery 6LR61 Battery life When using alkaline battery backlight off Approx 20 hours Operating temperature and humidity 0 50 with no condensation lt 80 RH 0 30 C lt 75 RH 30 40 C lt 45 RH 40 50 C Temperature coefficient At 0 to 18 C and 28 to 50 C Add 23 5 C accuracy x 0 2 C Storage temperature 10 to 50 C 80 RH or less remove the battery Withstand voltage AC 6880 Vrms 5 sec between the core and the case AC 4300 Vrms 5 sec between the core and the voltage input terminals AC 6880 Vrms 5 sec between the voltage input terminals and the case Insulation resistance 100MQ or greater at 1000 VDC between the core
14. Administration of the Pollution Control of Electronic Information Product of China The following are the provisions of Measure for Administration of the Pollution Control of Electronic Information Product of China This manual is valid only in China Pmthass SVR RWAaRRes ABAZUR REZ AR z y F 4 KR fi TOMER 2 RKE ZRO PBDE ER BH O ZR IRIRASSY O ith O Se O O FARRAH AT Ty es Bo eB AY Bet ES S T 1 1363 20064 h FT LEM PRET X RPA PE BA RS SBS SRI BAS SAB S T 1363 2006 PEAT ALE HRB EK eniRiG AT 20062 A 28 A MAA BT nis RIS SS UR SJ T11364 2006 Finer ans RSA PAR PEAR FIBA AN TS REAP RO Tk RNR RE ESS EARBARANERA KSAT RPA SM hth RAD TIDE RA AY FS RK TR UT PE EH R if BERA ME ARIR gt FE MRS RIE SHEA TS FAAS FA ULB 27 YOKOGAWA R II IAA RAL Yokogawa Meters amp Instruments Corporation GESI 7190 8586 RABID RAT 6 1 3 REJ 2 SHE Bak 042 534 1456 DrAvs 042 534 1438 BRIEICES SSMU Sht SRUVLFORRKBEEKISLHOBRMAICSAMLSpe ESL Yokogawa Meters amp Instruments Corporation International Sales Dept Tachihi Bid No 2 6 1 3 Sakaecho Tachikawa shi Tokyo 190 8586 Japan Phone 81 42 534 1413 Facsimile 81 42 534 1438 YOKOGAWA CORPORATION OF AMERICA U S A Phone 1 800 888 6400 Facsimile 1 770 254 0928 YOKOGAWA EUROPE B V THE NETHERLANDS Euroweg 2 3825HD Amersfoot THE NE
15. Iui Ma 11 8 5 DCA ZERO We recommend that you perform zero adjust DCA ZERO before measuring DCA mode NOTE Remove the jaws out of the conductor Press the HOLD key of right side for more than 2 sec After is displayed ZERO adjustment is confirmed DCA Zero is only available in AUTO SENSE DC and AC DC mode HOLD gt 2 Sec HOLD gt 8 6 Measuring Frequency Hz AC mode only lt 1 gt Turn the function switch to the voltage V or current A position VS Ax lt 2 gt Using the ENTER key to confirm AC mode lt 3 gt Using the cursor key to select Hz and then press the ENTER key to confirm The unit of Hz and the frequency value are displayed Using ENTER key to change unit to cancel lt RANGE gt On measuring frequency Using the cursor key to select RANGE and then press the ENTER key to confirm The frequency range is fixed Each time RANGE ENTER key is pressed range is changed On measuring frequency ACV or ACA range is fixed 12 8 7 MAX MIN The minimum and maximum value during measurement are updated displayed Using the cursor key to select MAX MIN and then press the ENTER key to MAX MIN mode To cancel the function press the ENTER key for more than 2 sec w O a AC MAX ENTER I MAXMIN gt 2sec 7 gt MAX MIN NOTE HOLD key is pressed in MAX MIN mode the MAX and MIN values are not updated HOLD is appeared To cancel the function
16. Press the HOLD key right side to hold the measured value To cancel press the HOLD key again Press NOTE On ACA mode Press the HOLD key for more than 2 sec for zero adjust See also Section 8 5 DCA ZERO Alarm during Hold The CW10 beeps continuously and the display will flash if the measured signal is larger than the display reading at Voltage Current and Active power function To cancel press the HOLD key 8 13 Voltage Sense In case voltage is detected by the jaw the red LED lights up Ensure that the tip of the jaw touches the object wire Take care that the tip of the jaw does not touch other wires Use the Voltage Sense LED as an aid only if wire is energized or not Even if Voltage Sense LED does not light do not touch unshielded wire cable with bare hand Live wire LED 8 14 Buzzer The CW10 beeps once for every valid key press operation and beeps twice for every invalid key press 8 15 Additional Power on Function Hold one of the keys below and turn the function switch from OFF to any position to configure various function Key Configured Function Upward of Display of the software version Cursor key Example c128 Downward of Cursor key Disable cancel Auto power off Leftward of Cursor key Disable cancel Backlight HOLD ke F EROY Display all LCD symbols approx 10 sec 9 Battery State display and Battery Replacement 9 1 Battery State display
17. THERLANDS Phone 31 88 4641000 Facsimile 31 88 4641111 YOKOGAWA AMERICA DO SUL LTDA BRAZIL Phone 55 11 5681 2400 Facsimile 55 11 5681 4434 YOKOGAWA ENGINEERING ASIA PTE LTD SINGAPORE Phone 65 6241 9933 Facsimile 65 6241 2606 YOKOGAWA MEASURING INSTRUMENTS KOREA CORPORATION KOREA Phone 82 2 551 0660 to 0664 Facsimile 82 2 551 0665 YOKOGAWA AUSTRALIA PTY LTD AUSTRALIA Phone 61 2 8870 1100 Facsimile 61 2 8870 1111 YOKOGAWA INDIA LTD INDIA Phone 91 80 4158 6000 Facsimile 91 80 2852 1441 YOKOGAWA SHANGHAI TRADING CO LTD CHINA Phone 86 21 6239 6363 Facsimile 86 21 6880 4987 YOKOGAWA MIDDLE EAST B S C C BAHRAIN Phone 973 17 358100 Facsimile 973 17 336100 LTD YOKOGAWA ELECTRIC CIS LTD RUSSIAN FEDERATION Phone 7 495 737 7868 Facsimile 7 495 737 7869 2011 4 Printed in Taiwan Compliance with the Radio Waves Act Republic of Korea This product complies with the Radio Waves Act Republic of Korea Note the following when using the product in Republic of Korea The product is for domestic use Class B and meets the electromagnetic compatibility requirements Registration No KCC REM IMY EEN301 Equipment Name Clamp on Power Meter Trade Name Yokogawa Meters amp Instruments Corporation Manufacturer Yokogawa Meters amp Instruments Corporation Country of Origin Taiwan L
18. d Minus The phase of the current signal is leading the voltage signal capacitive load 15 8 10 2 3 phase 3 wire balanced unbalanced To use two the CW10 lt 1 gt Turn the function switch to the Active power W position lt 2 gt Connect following connecting diagram lt 3 gt Use the cursor key to select W and then press the ENTER key to confirm Active power W W1 W2 sum total 3P3W W W1 W2 Y star connection Delta connection 8 10 3 3 phase 4 wire balanced unbalanced To use three the CW10 lt 1 gt Turn the function switch to the Active power W position lt 2 gt Connect following connecting diagram lt 3 gt Use the cursor key to select W and then press the ENTER key to confirm Active power W W1 W2 W3 sum total 16 3P4W W W14 W2 W3 Black No 1 w1 8 10 4 Phase Rotation The CW10 can measure test phase rotation Only if the system frequency is stable lt 1 gt Turn the function switch to the Active power W position lt 2 gt Use the cursor key to select RST and then press the ENTER key to confirm lt 3 gt Connect the red test lead to the phase Line1and the black test lead to the phase Line3 If connecting is normal L1 is displayed flash for approx 3 sec Indication flash Condition OLU Voltage gt 1000V LoU Voltage lt 30V outF Frequency lt 45Hz 6
19. ey LEFT __ RIGHT DOWN Cursor key Moves the Cursor four directions to the item mode of ect Press the convex key toward selecting display you wish se mode ENTER key Confirms the item mode NOTE Push whole key toward requisite item Push down the center position of key to confirm ENTER key 7 Making Basic Measurements 7 1 Measuring Voltage A warnina Do not apply more than 1000 VDC or 1000 Vrms 1414 2 Vpk Plug the test leads to the input terminals NOTE When connecting the test leads to the circuit under measurement connect the black common before connecting the red live when removing the test leads remove the red live before removing the black common Turn the function switch to the Voltage position v Read the voltage value of display On Auto Sense mode the CW10 automatically detects AC or DC AC AUTO SENSE aC rrr OL Test leads 7 2 Measuring Current ZA warnina Do not apply more than 600 ADC or 600 Arms 848 5 Apk When you measure the current be sure to remove the test leads from the instrument Squeeze the open close lever to open the jaws Insert a wire from the measurable conductors under the test though the jaws making sure the tops of the jaws are tightly shut Turn the function switch to the Current position A Read the current value of display Using Auto Sense mode the CW10 automatically detects AC or DC NOTE
20. h indication is not PEAK value Bar graph indication is affected by the ACV value Example 500 0V 2 AC Current Turn the function switch to the current A position After using the ENTER key to confirm AC mode use the cursor key to select Peak Hold Hy 4 Press the ENTER key for more than 2 sec to select PEAK MAX Ay Press the ENTER key to switch between PEAK MAX polarity and PEAK MIN polarity To cancel Peak Hold press the ENTER key for more than 2 sec NOTE Bar graph indication is not PEAK value Bar graph indication is affected by the ACA value Example 500 0A 10 8 4 Inrush current YW AC mode only The CW10 has a function for measuring Inrush current Turn the function switch to the current A position A Using the ENTER key to confirm AC mode Using the cursor key to select Peak Hold Ww Inrush current and then press the ENTER key to confirm INRUSH Waiting state after trigger the Inrush current value RMS for 100m seconds measurement period is displayed Press the ENTER key once to return ACA mode Press the ENTER key once again to return waiting state restart NOTE If the Inrush current is expected to exceed 100 ACA select 600 A range in advance of measuring 30 0A 10 0A 100msec a gt Motor Trigger Motor Off pager Net Waiting Trigger AC WWM ac as rts p l Gon Mw lt rao Av After Trigger HAL J 5 ENTER ve m
21. he AUTO SENSE 8 11 1 Resistance Q lt 1 gt Turn the function switch to the Resistance position lt 2 gt Plug the test leads to terminals lt 3 gt Use the cursor key to select Resistance Q and then press the ENTER key to confirm lt 4 gt Read the measured value To return AUTO SENSE press the cursor key for more than 2 sec NOTE To measure manual range the range is fixed use the cursor key to select RANGE and then press the ENTER key to confirm Function switch Q position wh ML a ao woa Resistance Continuity w ann ALLIE a Wo o a RANGE Buzzer Beep Pea J Baek nea geek Test leads Test leads 7X Rance Forward bias Reverse bias Red Black Red Black Test leads Test leads 19 8 11 2 Continuity Check lt 1 gt Turn the function switch to the Resistance position lt 2 gt Plug the test leads to terminals lt 3 gt Use the cursor key to select Continuity check and then press the ENTER key to confirm NOTE At 1000Q range continuity check the buzzer turns on for resistances lower than approx 300 8 11 3 Diode Test lt 1 gt Turn the function switch to the Resistance position lt 2 gt Plug the test leads to terminals lt 3 gt Use the cursor key to select Diode test gt and then press the ENTER key to confirm NOTE The bad is displayed when measuring a diode conducted at forward and reverse bias 8 12 HOLD
22. move the case for example to charge the battery be sure to remove the test leads from the circuit under measurement When you remove the case for example to change the battery be sure to remove the test leads from the instrument Safety protectors such as rubber insulated gloves should be worn to prevent electrical shock when using the instrument There are caps at the ends of the test leads To ensure safety safety standard EN 61010 031 be sure to put the caps on the leads when you use them No person except personnel from Yokogawa is authorized to disassemble this instrument Z caution e The product is for domestic use Class B and meets the electromagnetic compatibility requirements Do not use the instrument near noise emitting equipment or where there may be sudden changes in temperature Otherwise the instrument may produce an unstable readings or errors Do not wipe the instrument using an organic solvent When cleaning the instrument use a dry cloth Do not leave the tester exposed to direct sunlight or in a hot and humid location such as the inside of a car for any prolonged length of time If the instrument will not be used for long periods remove the battery m Notice Regarding This Manual e The information contained in this manual is subject to change without notice e Every effort has been made to ensure accuracy in the preparation of this manual Should any errors or omissions
23. nic Information Product Of China c ceeceeeceeeeeeeeeeeeeeeeeeeseeeeeeeeeeeeaees 27 NOOR WP All Rights Reserved Copyright 2011 Yokogawa Meters amp Instruments Corporation 3 1 Checking the Contents of the Package After opening the package be sure to check the product as instructed below before use 1 Main Unit CW10 including battery 2 Test leads 1set Black and Red 3 User s Manual 4 Soft Case 2 Measurement Category CW10 main unit 1000V CAT III 600V CAT IV Test leads 98081 With Caps Without Caps 1000V 10A CAT II 1000V 10A CAT III 600V 10A CAT IV Meare Description Remarks Category For measurement performed Appliances CAT II on circuits directly connected portable equipment to the low voltage installation etc For measurement performed Distribution board CAT III in the building installation circuit breaker etc For measurement performed Overhead wire CAT IV at the source of the low voltage cable systems etc installation 3 Components cw10 Test leads 1 Jaw section A 3 Voltage sense Caps of Test leads 4 Barrier 5018 ERG xN 5 Hold and Zero key a E 6 Function switch 7 Open close lever 8 LCD display 9 Cursor Enter key p s Black Red 10 Terminals of test leads Main Unit CW
24. s that this instrument designed to be applied around or removed from HAZARDOUS LIVE conductors provided if the RATED circuit to earth voltage dose not exceed the value indicated in the measurement category This symbol indicates If the measured voltage is greater than 30 V DC or AC RMS or Overload OL or OL Indicates a hazard that may result in the loss of life ZA warninc or serious injury of the user unless the described instruction is abided by Indicates a hazard that may result in an injury to the user and or physical damage to the product or A caution other equipment unless the described instruction is abided by ZA warnina Always observe the following instructions Failure to do so may result in electrical shock or other dangers that may lead to serious injury or the loss of life Do not use the instrument in an atmosphere where any flammable or explosive gas is present Avoid using the instrument if it has been exposed to rain or moisture or if your hands are wet e Barrier is for to avoid touching the conductor Be careful not to across the Barrier when using the instrument Do not use the instrument if there is any damage to the casing or when the casing is removed e Use the test leads supplied by Yokogawa with this instrument Do not use test leads that have deteriorated or are defective Check test leads continuity When you attach or remove the test leads or re
Download Pdf Manuals
Related Search