3f/1f POWER CLAMP MODEL : 4500
Contents
1. KVA 5 aw KVA t KVA ta KVA iia PF _ KW 4W 3f 4W T KVA Sf 4W 34 3 11 Improving Power Factor of a 3f 4W Power System 3 11 1 Measure KVAR or KVAR KVAR or KVAR KVAR or KVAR values of each phase 3 11 2 Based upon the measured values users can purchase required 3f or 1f capacitor at rated voltage and frequency to improve power factor 3 11 3 If value of capacitance is needed users can obtained the value by the following equation KVAR 1000 2pfV Capacitance Farad where f frequency in Hz V phase voltage 3 11 4 Itis recommended that the KVAR value of the capacitor should be a little less than the value measured 3 12 Improving Power Factor of a 3f Balanced Power System 3 12 1 Measure KVAR value of a balanced system 3 12 2 Based upon the measured value users can purchase required 3f capacitor at rated voltage and frequency to improve power factor 3 12 3 If value of capacitance is needed users can obtained the value by the following equation KVAR 1000 POV Capacitance Farad where f frequency in Hz V phase voltage 3 12 4 It is recommended that the KVAR value of the capacitor should be a little less than the value measured 35 3 13 Improving Power Factor of a 1f 2W Power System 3 13 1 Measure KVAR value of a 1f 2W power system 3 13 2 Based upon the measured value users can purchase required capacitor at rated voltage and frequency to improve2. 29 3 9 1f 3W Power Measurment 0008 600V MAX CATI when chimp meter Do nol clamp on powering on Fig 14 30 E E E T om ie k p OCT 1653W We SE SS S OS OD BS SS S SE SP G E E Se A eS GRRE LI Li G 110 L2 G 110 L2 220 L 31 Fig 15 West 193W READ NEXT Wissw Wrst W W 26 Fig 16 32 4500 28 09 2012 1f 3W power measurement is similar to 3f 3W unbalanced power measurement except the nomendature is different 3 9 1 Two measurements of Wps or Wiio and W or W are required 3 9 2 Firstly measure W or W refer to figure 14 a Turn the power on without clamping on to any wire b Set the rotary switch at 3f c Press the 3f button once and only the 3f 3W symbol is left in LCD At this moment the Wps symbol blinks to instruct users to take measurement of Wasaie d If the watt reading is not zero press the DCA DCW ZERO button once to zero the watt reading e Insert the test leads into the input jack f Connect the test prod of the COM black terminal to ground g Connect the test prod of V red terminal to the second phase eg L1 h Clamp on to the same phase as in step g eg L1 i The power clamp will automatically select proper range j Wait until the reading is stable press the NEXT button and Wps W symbol will disappear At this moment Waswicy is stored in the memory and W W gt Symbol appear
3. 600V DC 800V 99 99KW ACA DCA 2000A 100 0 1KW 2 0 0 5KW AC 600V DC 800V 999 9KW ACA DCA 2000A 1000 1KW 2 0 5KW AC 600V DC 800V ON RONDA 20008 Power Factor PF KW KVA AC DC Voltage True RMS Crest Factor lt 4 Autorange i 800VAC for ai range Input Range Res_ DO sorsoHz 40 400H2 _ Impedance AC DC Current True RMS Crest Factor lt 4 Accuracy of reading Overload Protection PF 200 500A 0 1A 2 0 5dgts 2 5 5dgts AC 3000A 500 2000A 1A 2 5 5dgts 3 0 5dgts AC 3000A AC DC KVA Apparent Power V A Aua 1000 AC DC KVAR Reactive Power KVAR KVA KW 40 4500 28 09 2012 Phase Angle 50 60Hz must zero current reading before measurement Sensitivity 90 to 90 V gt 100V A gt 10A Zero Crossing Detection If a current signal is not detected the phase angle will be left blank in LCD Frequency if lt 10 Hz Hz 0 Range Accuracy 50 60 Hz V gt 1V A gt 5A 10 400 Hz 0 5 2 dgts V gt 1V A gt 5A Indoor Use Conductor Size Cable F 55mm approx Bus Bar 65mm D x 24mm W Battery Type OV Display 2 X 4 Digits Dual Display LCD Range Selection Auto Overload Indication OL Power Consumption 25 mA approx Low Battery Indication Sampling Time 0 5 sec V and A 1 6 sec W Operating Temperature 4 C to 50 C Operating Humidity less than 85 relative Altitude up
4. Over voltage Category II CAT II i g Energy consuming equipment to be supplied from the fixed installation Over voltage Category Ill CAT III Equipment in fixed installations WARNING If the clamp meter is used in a manner Not specified by the manufacturer the protection provided by the clamp meter may be impaired 4500 28 09 2012 1 Panel Description 1 Transformer Jaw This is used to pick up current signal To measure AC DC Fig 1 current or AC DC power conductor must be endosed by the jaw 2 Transformer Trigger B This is used to open the jaw 3 Data Hold Button Once this button is pressed reading will be held in the LCD Press again to release it p A 6600 30 16 4 Function Selection and On Off Switch Power Clamp This is used to sealed the function users desired such as DN Lr KW V A Phase KVA or 3f D 5 LCD This is a 4 digits Liquid Crystal Display with maximum indication of 9999 Function symbols units sign decimal 4 points low battery symbol and zero symbol are included 6 Units Symbols Once a function is selected corresponding unit KW V A Phase KVA or 3f will be displayed in LCD 7 3f 3W and 3f 4W Select Button 3 wire or 4 wire systems If the 3f system is not a balanced system users can press this button to select between 3f 3W 3f 4W or a balanced a system Once pressed LCD will show symbol of 3f 3W or 3f 4W depends on the function selected 8 8 Read
5. power factor 3 13 3 If value of capacitance is needed users can obtained the value by the following equation KVAR 1000 2pfVv 2 Capacitance Farad where f frequency in Hz V phase voltage 3 13 4 It is recommended that the KVAR value of the capacitor should be a little less than the value measured 36 4500 28 09 2012 3 14 Phase Sequence Indication for PF gt 0 1 KLI S L2 TL3 Fig 17 37 NOTE The indication of phase sequence is not limited to 3f balanced power It can be used in general as long as the PF displayed is greater than 0 1 Set the power clamp In 3f balanced power mode the power clamp will automatically detect phase 3 14 1 Set the rotary at 3f 3 14 2 Connect the voltage input red terminal to R or L1 phase connect the COM input black terminal to S or L2 phase and clamp on the T or L3 phase When clamp on the T or L3 phase the power clamp must face the power source 3 14 3 If the phase sequence is clockwise R S T sequence will be shown and flashed refer to figure 17 3 14 4 If the phase sequence is counterdockwise T S R sequence will be shown and flashed refer to figure 17 3 14 5 lf the current signal where jaws clamp on is not detected only one of the R S or T will be left in LCD NOTE The sign printed on jaw must face the power source for correct measurement 3 15 Recording Data in Volatile Memory The power clamp can store 4 data in i
6. to 2000M Storage Temperature 20 C to 60 C Storage Humidity less than 75 relative Dimension 271 x 112 x 46mm approx Weight 647gms included battery approx Accessories Carrying bag x 1 Users manual x 1 9V battery x 1 Installed Test lead At pair x 1 Crocodile test lead pair x 1 5 Battery Replacement A EN 63010 E sev INSTALLATION Cat POLLUTION DECREE 2 WARNING TO AVOID ELECT BUOCK lt A as a Si HF Ty fl f 9V BATTERY E Fig 18 When the low battery symbol is displayed on the LCD replace the old battery with new battery 5 1 Turn the power off and remove the test leads from the power clamp 5 2 Remove the screws of the bottom case 5 3 Lift and remove the bottom case 5 4 Remove the old battery 5 5 Insert new 9V battery 5 6 Replace the bottom case and secure the screws WARNING do not touch or adjust any parts inside the power clamp when the bottom case is open 42 6 Maintenance amp Cleaning Servicing not covered in this manual should only be performed by qualified personnel Repairs should only be performed by qualified personnel Periodically wipe the case with a damp cloth and detergent do not use abrasive or solvents 43 MECO Certificate of Calibration We hereby certify that this product has been calibrated and found to be in accordance with the applicable SPECIFICATIONS and STANDARDS Accuracies of the standard equi
7. values of KVA and KVAR 3 6 3 V A Dual Display I F Follows steps from a to j in section 3 6 1 Then press the l NEXT twice and wait for 1 5 seconds The LCD display nn g will show the absolute values of V and A i NOTE Specific selection of each phase is not required in 3f i balanced power measurement As long as each prod and the jaws as i are connected to different phases the reading is always correct g The sign printed on jaw must face the power source for accurate n measurement ar gt l my e D NOTE To find out it load is capacitive or inductive refer to section an E iL 3 5 Phase Angle Measurement for details 17 3 3 7 3f 3W No neutral AC DC Unblanced Power Measurment S i J c3 8 2 lt lt z se Fig 8 19 gt2 20 4500 28 09 2012 West tit2t3 W3e3w W rs tu2 Wrs ist2 Fig 9 21 3 7 1 Two measurements of Wps or W required and W or W are L1L2 L2L3 3 7 2 Firstly measure W or W refer to figure 7 a Turn the power on without clamping on to any wire b Set the rotary switch at 3f c Press the 3f button once and only the 3f 3W symbol is lett in LCD At this momeni the W symbol blinks to instruct users to take measurement of Wps d If the watt reading is not zero press the DCA DCW ZERO button once to zero the watt reading e Insert the test leads into the input jack f Select one phase eg S or L2 as COM and connect t
8. 1 Improving Power Factor of a 3f 4W Power SUC eis e E 31 3 12 Improving Power Factor of a 3f Balanced Power 3f 1 f By SLD e S 31 3 13 Improving Power Factor of a 1f 2W Power POWER RY SE ESIE ETE VE IE EN 32 3 14 Phase Sequence Indication for PF gt 0 1 33 CLAMP 3 15 Recording Data in Volatile Memory 0 008 35 Se ee a 3 16 Reading Data in Memory ccceeeeeeeeeeeeeeeeeneees 35 MODEL 4500 A SHECIICAUONS sscasccissceteccsecdessccccecesicsideahatcadensetebatusuSenduaseds 36 oe 5 Battery Replacement cccssscecsssseessessseeeenseeseeeseeseees 39 USER MANUAL 6 Maintenance amp Cleaning qu ssesrssesesreseees 40 EN 61010 2 032 1 Features _ ___ CE CAT Il 600V 1 3f 4W 3f 3W 3f Balanced 1f 2W and 1f 3W Power Pollution Degree 2 Measurement Definition of Symbols 2 AC DC true power and True RMS AC Voltage and Current Caution Refer to Accompanying Documents 3 AC DC 2000A AC 600V DC 800V 4 AC DC 1200KW 1f AC DC 2000KW 3f AN Caution Risk of Electric Shock 5 Dual Display V Hz A Hz W PF KVA KVAR V A 6 Phase Angle Measurement E Double Insulation 7 3f RST L1L2L3 Sequence Indication Over voltage Category CAT o Memory Ora records Equipment for connection to circuits in which measures are taken 9 DCA DCW Auto Zero when power clamp powering on to limit the transient over voltages to an appropriate low level 10 AC DC Auto Detection 11 Auto range
9. Next Button When the rotary switch is set at 3f function the button is used as a NEXT button In the 3f balanced system mode pressing the NEXT button will enable users to select W PF a KVA KVAR or V A to be displayed In the 3f 3W system mode Pressing the NEXT button to 5 6 store the measured values W 4 aNd Wsrazag After two values 12 REC button are measured and stored the microprocessor inside the power The clamp meter can store 4 data in memory Once the Clamp will add the two values together display the result in LCD button is pressed the data number will be shown in LCD and show the symbol of Wps to represent Ws aw 1O start another A REC symbol will be shown in LCD if any data is stored Wer aw Measurement press the NEXT button again If the memory is full FULL will be show in LCD To clear In the 3f 4W system mode Pressing the NEXT button to memory users need to turn the power off and on again store the measured values Waan Wsag and W After three 13 Low Battery Symbol values are measured and stored the microprocessor inside the When this symbol appears it means the battery voltage clamp will add the three values together display the result in d helow herini redvoii Refer to Secti LCD and show the symbol ot W to represent W w 10 start o sie es i aa a aa another W measurement press Ihe NEXT button again eget ye wean TE 14 REC and NO symbols If the rotary is not set at the 3f function the button is used
10. TABLE OF CONTENTS SSS 1 Features sscicicsecscecccscesneacsccesenecnnnsennssisewenansiisensueeweccuersecesesenceed 2 2 Panel Description sssssscccsssssseeccnsssessececnssnseesensensseeesesnens 4 3 Operating Instructions assssssssssnnnnunnnunnnnnnnnnnnnnnnnnnnnnnnn nenne 6 3 1 AC DC 1f 2W Power W and Power Factor PF measurement sisdascatcevien sedans sanenadeceisodutecantocweeasseduincad 6 3 2 AC DC Voltage Measurement eeeeeeees 8 3 2 1 V Hz Dual Display sccce sneeze ssc vicraicwcstnetecctucss 8 3 2 2 V A Dual Display sicccassrsetactentinetdactexnivernnacts 9 3 3 AC DC Current Measurement cceceeeeeeeeees 10 3 3 1 A Hz Dual Display ee eeeeeeeeee eens 10 3 3 2 V A Dual Display saeiacersttcuersnccunasntaciausdeenpues 11 3 4 AC DC 1f 2W Apparent Reactive Power Meco LOETUD Measurement KVA KVAR 0seseeeeeeeeeeeeeees 11 TI PERESA 3 5 Phase Angle Measurement c ccccceeeeceeeeees 12 3 6 3f AC DC Balanced Power Measuremenrt 14 3 6 1 W PF Dual Display cczscassctrecumsatenccneorces 14 3 6 2 KVA KVAR Dual Display 0000008 15 3 6 3 V A Dual Display sacicsactrenccacacsvenscduatiernnnntuas 15 3 7 3f 3W AC DC Unbalanced Power Measurement 16 3 8 3f 4W AC DC Unbalanced Power Measurement 21 3 9 1f 3W Power Measurement 0ccceeeeeeeees 27 3 10 Calculation of 3f 4W Power Factor PF 31 3 1
11. as a READ button If users ever store data in the memory by pressing REC button pressing the READ button will retrieve the data from the memory First the data number will be shown in LCD then the data stored Once READ function is enabled symbol of REC and NO will be shown in LCD to indicate the power clamp is in READ mode The reading shown in LCD is not current reading but data stored in memory To exit READ function turn the rotary switch to change funclion 9 Vinput Terminal This terminal is used as input for voltage measurements 10 COM Terminal This terminai is used as common reference input 11 DC A W ZERO button When users find the reading of A or W is not zero press this button once will zero the A or W reading Users do not need to press and hold the button When the power clamp is doing the zero action a symbol of ZERO will be shown in LCD If users observe REC is shown that means data is stored in memory If users observe both REC and NO are shown that means readings shown in LCD are data stored in memory not current data measured Test equipment risk assessment UK recommendation Users of this equipment and or their employers are reminded that health and safety legislation requires them to carry out valid risk assessments of all electrical work so as to identify potential sources of elctrical danger and risk of elctrical injury such as from inadvertent short circuits Where assessments show that the
12. emory and W flashes in the display 3 8 4 Thirdly measure W or W refer to figure 12 a Disconnect the test prob from the phase where jaws is clamp on in 3 7 3 b Connect the test prod of the V red terminal to the third phase eg T or L3 phase c Open and close the jaws so power clamp is clamping to nothing d Ifthe watt reading is not zero press the DCA DCW ZERO button once to zero the watt reading e Clamp on to the phase where test prob is conneted eg T or L3 f The power clamp will automatically select proper range g Wait until the reading is stable press the NEXT button and W symbol will disappear At this moment W is stored in the memory 3 8 5 Once the NEXT button is pressed after measurements of W W and W the power clamp will add the three values W W and W together and show the result on the LCD Ws Symbol will be shown to indicate the watt of 3f 4W unbalanced power refer to figure 13 PF is not shown in 3f 4W unbalanced power measurement W Wast Wat Wsz t Writs NOTE The sign printed on jaw must face the power source and make sure all the connetions and clamping are correct for correct measurement Note In the 3f 4W unbalanced power measwement all three Wor W and W must be positive If users find one negative power check the connection of test leads and clamping of jaw Make sure all the connections and clamping are correct to obtain correct power 3f 4W
13. etting the WARNING rotary switch at A If the current reading is not zero Before taking measurement users must make sure the current A reading is zero by setting the rotary switch at A position If the current reading is not zero users might get an incorrect KVA and KVAR values 3 5 Phase Angle Measurement ERABI 9995 J 600V MAX CATH Do not clamp on when clamp meter powering on Sensitivity V gt 100 Volts A gt 10 Amps 15 press the DCA ZERO button 3 5 2 Set the rolary swiich at Phase refer to figure 5 3 5 3 Insert the test leads into the input jack 3 5 4 Connect the test prod of the COM black terminal to Ihe reference line 3 5 5 Connect the test prod of the V red terminal to the voltage signal to be detected 3 5 6 Clamp on to the wire where V red terminal is connected 3 5 7 If current signal is detected from the jaws the phase angle will be displayed in degree in LCO together with the frequency of voltage 3 5 8 If the current signal is not detected from the jaws only the frequency of voltage will be displayed while the phase angle is left blank WARNING Before taking measurement users must zero the current A reading to avoid incorrect reading of phase angle To check if current is zero turn the rotary switch to current A function NOTE INDUCTIVE LOAD Negative phase angle means current signal lags behind voltage signal If connection is co
14. he test prod of the COM black terminal to that phase eg S or L2 g Connect the test prod of V red terminal to the second phase eg R or L1 h Clamp on to the same phase as in step g eg R or L1 i The power clamp will automalically select proper range j Wait until the reading is stable press the NEXT button and Wps W symbol will disappear At this moment Whs is stored in the memory and W W symbol appears and blinks to instruct users to take measurement of We W 215 3 7 3 Secondly measure Wp or W a Disconnect the test prod from the phase where jaws is clamp on in previous measurement refer to figure 8 b Connect the test prod to the third phase eg T or L3 c Open and close the jaws so power clamp is clamping to nothing 22 d If the watt reading is not zero press the DCA DCWZERO button once to zero the watt reading e Clamp on to the third phase where test prod is connected eg T or L3 f The power clamp will automatically select proper range g Wait until the reading is stable press the NEXT button and W or Wx symbol will disappear At this moment W or W is stored in the memory 3 7 4 Once the NEXT button is pressed after measurements of Wps or Wir and W or Wiz the power clamp will add the two values together and show the result on Ihe LCD West Symbol will be shown to indicate the watt of 3f 3W unbalanced Power refer to figure 9 PF
15. is not shown in 3f 3W unbalanced power mode W Wast Wasi NOTE Once a phase is selected as COM users can not change this selection in the subsequent measurement For example if S or L2 phase is selected S or L2 phase is always connected to the COM of power clamp during measurement of Wps or W and W or Wiz in 3f 3W unbalanced power NOTE The sign printed on jaw must face the power source and make sure all the connections and clamping are corred for correct measurement Wey 3f 3W L1L2 L2L3 L1 io iaig NOTE In the 3f 3W unbalanced power measurement one of Wps or W could be negative So users must make sure all the connections and clamping are correct to obtain correct power 23 3 8 3f 4W Neutral included AC DC Unblanced Power Measurment GE i Gz oO 1 Gs ae Gas d LL na Of i an a Pile T J G E 38 lt 4 5 a E f lt z s523 24 4500 28 09 2012 7A Wrs i3i2 pot ft S TE JE f A 600V MAX CATTI 0 Fig 11 ea lt ine _ Am S94 cH 5 25 W 113 S 4W R L1 LI TIO T IO ZT T L TT stave lt 1 Ii gt l I Ss 3 o rE 26 27 READ NEXT Wzgaw West Wran Ws Ws Fig 13 3 8 1 Three measurements of W_ or W W or W and W or W are required 3 8 2 Firstly measure W or W refer to figure 10 a b C Turn the power on
16. pment used in this calibration are traceable to the National Standards MECO METERS PVT LTD Plot No EL 60 MIDC Electronic Zone TTC Industrial Area Mahape Navi Mumbai 400710 INDIA Tel 0091 22 27673311 16 27673300 Board Fax 0091 22 27673310 27673330 E mail sales mecoinst com Web www mecoinst com SR NO CHECKED BY DATE MODEL NO 44 4500 28 09 2012
17. power clamp s terminals for current measurement a Set the rotary switch at A refer to figure 4 b Push and hold the DCAIDCWZERO once to zero the reading c Press the trigger to open the jaw and fully endose the conductor to be measured No air gap is allowed between the two half jaws d The power clamp will automatically select proper range e Read the current and frequency values displayed in LCD NOTE The sensitivity for current frequency measurement is 5A and the frequency range is 10 400HZz If the frequency is lt 10 Hz LCD will show 0 Hz If the frequency is gt 400 Hz LCD will show OL 3 3 2 V A Dual Display Follow the instruction in section 3 6 3 3f AC DC Balanced Power Measurement V A Then users can monitor V and A at the same time from LCD 3 4 AC DC 1f 2W Apparent Readive Power Measurement KVA KVAR Before any measurement zero the current A reading Then set the rotary switch at KVA The rest of the procedures are the same as section 3 1 AC DC 1f 2W Power W and Power Factor PF measurement Refer to figure 2 for test leads connection and clamping of jaw KVAR is a calculated value and its accuracy greatly depends on the accuracy of V A and KW To obtain a more accurate KVAR value when PF is greater than 0 91 u lt 25 measure the ge phase angle and obtain the KVAR from the following equation for 13 a pure sine wave 14 KVAR KVA sin u 3 5 1 Make sure the current reading is zero by s
18. printed on jaw must face the power source for accurate measurement 10 3 2 AC DC Voltage Measurement 3 2 1 V Hz Dual Display 4 meh SC 0g PF nm mo Lied ARAS BHH A 600V MAX CAT Fig 3 11 WARNING Maximum input for DC V is 1000 and for AC V is 750 Do not attempt to take any voltage measurement that exceeds the limits Exceeding the limits could cause electrical shock and damage to the clamp meter a Set the rotary switch at V refer to figure 3 b Insert the test leads into the input jack c Connect the test prods of the test leads in PARALLEL to the circuit to be measured d The power clamp will automatically select proper range e Read the voltage and Frequency values displayed on the LCD NOTE The sensitivity for voltage frequency measurement is 1V and the frequency range is 10 400Hz If the frequency is lt 10 Hz LCD will show 0 Hz If the frequency is gt 400 Hz LCD will show OL 3 2 2 V A Dual Display Follow Ihe instruction in section 3 6 3 3f AC DC Balanced Power Measurement V A Then users can monitor V and A at the same time from LCD 12 4500 28 09 2012 3 3 AC DC Current Measurement 3 3 1 A Hz Dual Display Do nat chimp an when clomp meter powering on B E 600Y HAX CATI WARNING 1 Do not clamp on to any conductor when turning on the power of power clamp 2 Make sure that all the test leads are disconnected from the
19. risk is significant than the use of fused test leads constructed in accordance with the HSE note GS38 Electrical Test Equipment for use by Electricians should be used 4500 28 09 2012 3 Operating instruction 3 1 AC DC 1f 2W Power W and Power Factor PF measurement 55 Qe H pe i 3 Ee w OC a lt e528 a o 8 Rs O iq 7 eps o 2 Re B q Wee C3 NaC N Ils Gs 2 A i diet E Ld Ia N W 1 2W Fig 2 A 600V MAX CATH WARNING Do not clamp on to any conductor when turning on the power of power clamp Because the power clamp will auto zero the residual magnet remained in the jaws at the moment the power clamp is tumed on If users clamp on to conductor with current flowing through the reading measured later will be inaccurate 3 1 1 Turn the power on without jaws damping on to any wire 3 1 2 Set the rotary switch at W refer to figure 2 3 1 3 If the watt reading is not zero press the DCA DCW ZERO button once to zero the watt reading 3 1 4 Insert the test leads into the inpul jack 3 1 5 Connect the test prod of COM black terminal to the neutral line 3 1 6 Connect the test prod of V red terminal to the power line 3 1 7 Clamp on to the line where V red terminal is connected 3 1 8 The power clamp with automatically select proper range 3 1 9 Read the Watt and PF values displayed in LCD NOTE The sign
20. rrect negative phase angle also means inductive load CAPACITIVE LOAD Positive phase angle means current signal leads ahead voltage signal If connection is correct positive phase angle also means capacitive load NOTE The sign printed on jaw must face the power source for correct result 16 4500 28 09 2012 3 6 3f AC DC Balanced Power Measurement a Turn the power on without clamping on to any wire 3 6 1 W PF Dual Display b Set the rotary switch at 3f refer to figure 6 c LCD will show 3f 3W 3f 4W and BAL symbols indicate balanced power measurement d If the watt reading is not zero press the DCA DCW ZERO button once to zero the watt reading e Insert the test leads into the input jack f Select one phase eg R or L1 as COM and Connect the test prod of COM black terminal to that phase eg R or L1 g Connect another test prod to the second phase 55 eg S or L2 nE E h Clamp on to the third phase eg T or L3 5 3 i The power clamp will automatically select proper range E j j Read the Watt and PF values displayed in LCD a58 6 k To see KVA and KVAR press the NEXT button I To see V and A press the NEXT button again m To return to display of W and PF press the NEXT button Sh again KL 3 6 2 KVA KVAR Dual Display 3 Follows steps from a to j in section 3 6 1 Then press the ae NEXT once and wait for 1 5 seconds The LCD display l will show the
21. s and blinks to instruct users to take measurement of W W 3 9 3 Secondly measure W or W a refer to figure 15 a Disconnect the test prob from the phase where jaws is clamping on in the previous measurement b Connect the test prob to the L2 line c Open the jaws so clamp meter is clamping to nothing L1G La 33 d If the watt reading is not zero press the DCA DCW ZERO button once to zero the watt reading e Clamp on to the L2 line where test prob is connected to f The power clamp will automatically select proper range g Wait until the reading is stable press the NEXT button and W or W symbol will disappear At this moment W or Wa is stored in the memory 3 9 4 Once the NEXT button is pressed after measurements of W or Wia and W or W the power clamp will add the two values together and show the result on the LCD Wie 3w T W RST W RS L1G W ST L2G Was Symbol will be shown to indicate the watt of 1f 3W unbalanced Power refer to figure 16 PF is not shown in 1f 3W unbalanced power mode 3 10 Calculation of 3f 4W Power Factor PF 3 10 1 As measuring 3f 4W unbalanced power use the REC button to record the individual power factor KW PF acai KWecay PFst2 KWreg and PF of each phase in mernory 3 10 2 With those data 3f 4W power factor can be calculated by the fallowing equation KVA _ Wan _ Weta _ Wiis R L1 j s L2 7 PF j ay Ec R L1 S L2 T L3
22. ts own memory To store any data displayed in LCD press the REC button If the power clamp has stored 4 data already LCD will display FULL The data is lost if power is turned off The REC symbol will be displayed in LCD if any data is stored NOTE If users observe REC only is shown in LCD that means some data is stored in memory 38 3 16 Reading Data in Memory To retrieve data in memory press the READ button as long as rotary switch is not set at 3f function Once the read button is pressed the record number will be first displayed then data is displayed after Once in the READ function the REC NO symbols will be displayed in LCD To exit the READ function turn the rotary switch to change function NOTE If users observe both REC and NO symbols are shown in LCD users should know that the readings shown in LCD are not cur rent data measured They are data stored in the memory 4 Specifications 23 C 5 C AC DC True Power PF 0 2 1 0 3f 3W 3f 4W 1f 2W and 1f 3W 99 99KW ACA DCA 2000A 999 9KW ACA DCA 2000A 1200KW ACA DCA 2000A KW Autoranging Map PF 0 2 1 0 3f 3W 3f 4W 1f 2W and 1f 3W L OV 200V 200V 600VAC 200V 800VDC OA 200A 0 00 40 00KW 0 00 99 99KW 100 0 160 0KW 200A 2000A 0 0 400 0KW 0 0 999 9KW 1000 1600KW 39 AC DC True Power Power Factor 0 2 1 0 3f Balanced Power Accuracy of rdg Range 0 0 01KW 2 0 0 5KW AC
23. without clamping on to any wire Set the rotary switch at 3f Press the 3F button twice and only the 3f 4W symbol is left in LCD At this moment the W symbol blinks to instruct users to take measurement of Wp If the watt reading is not zero press the DCA DCW ZERO button once to zero the watt reading Insert the test leads into the input jack Connect the neutral line to the COM black terminal Connect the test prod of the V red terminal to the first phase eg R or L1 Clamp on to the same phase eg R or L1 The power clamp meter will automatically select proper range Wait until the reading is stable press the NEXT button and W symbol will disappear At this moment W is stored in the memory and W symbol appears and blinks to instruct users to take measurement of W 3 8 3 Secondly measure W or W refer to figure 11 a Disconned the test prod from the phase where jaws is clamp on in 3 7 2 Connect the test prod of the V red terminal to the second phase eg S or L2 Open and Close the jaws so Clamp meter is clamping to nothing If the watt reading is not zero press the DCA DCW ZERO button once to zero the watt reading Camp on to phase where test prod is connected eg S or L2 phase The power clamp will automatically select proper range 28 4500 28 09 2012 g Wait until the reading is stable press the NEXT button and W symbol will disappear At this moment W is stored in the m
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