ACD-45PQ 600A Power Quality Clamp Product Manual
Contents
1. Peak rms DI Mode Peak rms H compares and displays the maximum RMS value of surge voltage or current with durations as short as 65ms When ACV or ACA function is auto selected or manual selected press and hold Peak rms DI button Tor one second or more toggles to this mode The annunciators P Max turn on APO Auto Power Off feature is disabled automatically accordingly In ACA function the Peak rms mode starts at the highest 600A range to maximize measuring dynamic range Before making measurement press the Peak rms DI button momentarily again can manually select thru lower measuring dynamic range 400 0A or 40 00A for higher measuring resolutions Line level Frequency Hz Function When ACV or ACA function is auto selected or manual selected press Hz button momentarily toggles to Line level Frequency Hz function The Hz trigger level is determined by the selected function range from where the Hz function is activated In ACA function activating the Hz function during significant measurements can get the most appropriate trigger level to avoid electrical noises in most cases Activating the Hz function at AC 40 00A range before making significant measurements can get the lowest trigger level highest sensitivity HOLD E Mode When any function is auto2. 13 Oe Functions Set the slide switch function selector to the O e9 function position Default at last selected function Press SELECT button to toggle between Q and eil measurement functions MAX 600K Bwn ES AAMPROBE E ON EE Bez me duo A A Auee Backlighted Display Press the SELECT button for 1 second or more to toggle the display backlight on or off Auto Power Off APO The meter turns off after approximately 30 minutes of neither switch nor button activity To wake up the meter from APO press SELECT button or slide the function selector to OFF position and back on again Always turn the function selector to OFF when the meter is not in use 14 Auto Power Off Quick Test Press and hold the 3W 4W button while powering the meter on The LCD displays ip amp F St to confirm activation right after the 3W 4W button is released Quick test APO timing is 10 seconds after such activation Disabling Auto Power Off APO Press and hold the HOLD button while powering the meter on The LCD displays ft W EE to confirm activation right after the HOLD button is released Line Frequency Setup Press and hold the Hz button while powering the meter on
3. Specified accuracy is for ACA clamp measurement at the center of jaws When the conductor is not positioned at the jaw center position errors introduced are e Add 1 to specified accuracy for ACA measurements made WITHIN jaw marking lines away from jaw opening e Accuracy is not specified for ACA measurement made BEYOND jaw marking lines toward jaws opening 20 2 Add 4d to specified accuracy for 3 Phase Balanced Load Power measurements 3 Add 1 to specified accuracy ACA fundamental lt 6A or ACV fundamental lt 90V Accuracy is not specified ACA fundamental lt 1A or ACV fundamental lt 30V 4 Add 1 to specified accuracy ACA fundamental lt 6A or ACV fundamental lt 90V Accuracy is not specified ACA fundamental lt 2A or ACV fundamental lt 50V 5 0 360 0 Total Power Factor PF Range Accuracy 1 F 21st 22nd 51st 0 10 0 99 3d 5d 1 Specified accuracy ACA fundamental gt 2A ACV fundamental gt 50V A lags V Indication LCD annunciator A lags V turns on to indicate an inductive circuit or Current A lags Voltage V e phase shift angles is A lags V Indication is specified at 50 60Hz fundamental without the presence of harmonics and at ACV gt 90V ACA gt 9A and PF lt 0 95 kWH kilo Watt Hour Energy Time base accuracy lt 30ppm Non volatile memory Separately stores one 3 Phase Balanced Load and one Single Phase re
4. C to 60 C LAT to 140 F lt 80 R H with battery removed Nominal 0 15 x specified accuracy C 0 C 18 C or 28 C 40 C 32 to 64 F or 82 to 104F or otherwise specified True RMS sensing Meets IEC61010 1 2nd Ed EN61010 1 2nd Ed UL61010 1 2nd Ed CAN CSA C22 2 No 61010 1 0 92 IEC61010 2 032 EN61010 2 032 amp UL61010B 2 032 Measurement Category III 600 Volts ac amp dc 6 5kV 1 2 50us surge 2 E M C Overload Protections Power Supply Power Consumption APO Timing APO Consumption Dimension Weight Meets EN61326 1 2006 EN55022 EN61000 3 2 EN61000 3 3 EN61000 4 2 EN61000 4 3 EN61000 4 4 EN61000 4 5 EN61000 4 6 EN61000 4 8 EN61000 4 11 In an RF field of 3V m Total Accuracy Specified Accuracy 50 digits Performance above 3V m is not specified ACA Clamp on jaws AC 600A rms continuous amp COM terminals all functions 600VDC VAC rms standard 1 5V AAA Size NEDA 24A or IEC LRO3 battery X 2 Voltage ACA Hz amp Power functions 11mA typical Ohm function 5 5mA typical Idle for 30 minutes 4pA typical L189 X W78 X H40 mm L7 4 X W3 1 X H1 6 in 224 gm approx 192 gm approx 0 42 Ib Jaw opening amp Conductor diameter 26mm 1 0 in max Special features Accessories Electrical Specifications Backlighted display AutoVATM Auto Selection on ACV DCV or ACA functions selectable Power parameters of W VAR amp VA
5. CONTENTS SYMBOLS ceeds henna a eE aT 1 UNPACKING AND INSPECTION 3 OPERATION siviiicaccssnscassssntnnninstsn ccesibiuaesnds tatamenistiasennnensdsnsbeiubiiehanea tatanaaastianenmnnnsdenses 3 AutoVA Function Peak rms DI Mode Line level Frequency Hz Functlon 5 HOLD f Mode Single Phase Power amp 3 Phase Balanced Load Power Functions kWHr kilo Watt Hour Recording Function 3 Phase 3 Wire 3 W3W Unbalanced Load Power Function 3 Phase 4 Wire 3 W4W Unbalanced Load Power Function O P FUNCTIONS siidi Backlighted Display Auto Power Off APO ccccccccssssscesssseeeeeescecceseececceueececseseeeeeeeceeeseuseeseeeeeeeeeaes Auto Power Off Quick Test Disabling Auto Power Off APO Line Frequency Setu pirer aaa nn Gea ie n e PC Computer Interface Capabilities ccccceceeseeeeeeeeeeeeeeeeeeeseeeeeeeaeeneeeaeeae 15 SPECIFICATIONS MAINTENACE AND REPAIR lee Te lu EE Cleaning and Storage Battery Replacement SYMBOLS Caution Risk of electric shock Caution Refer to the explanation in this Manual Double Insulation or Reinforced insulation A A Alternating Current AC Direct Current DC Fuse Earth Ground Please remove all the test leads before preforming maintenance cleaning battery replacement fuse replacement etc Complies with European Directives Conforms to relevant Australian standards Do not dispose
6. function H z H N gt gt Aamenoge KO aso eye js flashing stop UUU nnn wm UUU w eee flashing asa aay AS Flashing agaln me flashing Set the slide switch function selector to the 3 Bal 1 Power position Setup power measurements as mentioned in the previous Single Phase Power amp 3 Phase Balanced Load Power functions section e To start oldie kWHr Recording press 3 Bal 1 and HOLD buttons at the same time Annunciator turns on amp flashes kWHr accumulated time in Hour is displayed automatically in the secondary mini display e To pause PAY press HOLD button momentarily Annunciator D stops flashing and is always on e To continue elont press the HOLD button momentarily again Annunciator D resumes flashing e To stop ikop press the 3 Bal 1 and HOLD buttons at the same time again Annunciator turns off The kWHr Recording result is then displayed on the LCD for immediate viewing Annunciator NH turns on amp flashes e When the low battery annunciator turns on the meter will stop ikop kWHr recording session automatically and display kWHr Recording result as in above Note During kWHr Recording session real time W VAR VA as well as kWHr accumula
7. of this product as unsorted municipal waste Contact a qualified recycler for disposal Im O AQ e HT Safety Information This manual contains information and warnings that must be followed for operating the instrument safely and maintaining the instrument in a safe operating condition If the instrument is used in a manner not specified by the manufacturer the protection provided by the instrument may be impaired The meter is intended only for indoor use The meter protection rating against the users is double insulation per 1EC61010 1 2nd Ed EN61010 1 2nd Ed UL61010 1 2nd Ed and CAN CSA C22 2 No 61010 1 0 92 to Category III 1000 Volts AC amp DC and Category IV 600 Volts AC amp DC Per IEC61010 1 2nd Ed 2001 Measurement Category Measurement Category IV CAT IV is for measurements performed at the source of the low voltage installation Examples are electricity meters and measurements on primary overcurrent protection devices and ripple control units Measurement Category III CAT III is for measurements performed in the building installation Examples are measurements on distribution boards circuit breakers wiring including cables bus bars junction boxes switches socket outlets in the fixed installation and equipment for industrial use and some other equipment for example stationary motors with permanent connection to the fixed installation Measurement Category II CAT Il is for measurements perfo
8. on respectively On the contrary with no voltage signal present on V COM terminals but a ACA current signal above the nominal threshold of AC 1A 40Hz 500Hz up to the rated 600A is input via the jaws the meter displays the ACA current value Annunciators Za and Auto turn on accordingly The Auto VA feature stays at the auto selected function as long as its signal remains above the specified threshold Press SELECT button momentarily to manually select and lock annunciator Auto turns off thru the functions ACA ACV DCV and then goes back to Auto VA ACAUTION e For non invasive ACA current measurements press the jaw trigger and clamp the jaws around only one single conductor of a circuit for load current measurement Make sure the jaws are completely closed or else it will introduce measurement errors Enclosing more than one conductor of a circuit will result in differential current like identifying leakage current measurement Locate the conductor s at the Jaws center as much as possible to get the best measuring accuracy For removal press the jaw trigger and remove the jaws from the conductor s Adjacent current carrying devices such as transformers motors and conductor wires will affect measurement accuracy Keep the jaws away from them as much as possible to minimize influence A AMPROBE A AMPROBE PROBE at
9. on respectively oy eae Sun Ch Jo DS qe A Oe flashing e Press SELECT button momentarily selects between W real power VAR reactive power VA apparent power amp kWHr real time readings or stored result functions In W real power VAR reactive power or VA apparent power function 1 PF Total Power Factor is displayed automatically in the secondary mini display 2 Annunciator A lags V turns on to indicate an inductive circuit is being measured That is the Current waveform is lagging the Voltage waveform and the phase shift angle 0 is 3 On the contrary together with significant PF values WITHOUT A lags V being turned on indicates that a capacitive circuit is being measured That is the Current waveform is leading the Voltage waveform and the phase shift angle 0 is Note 1 Under proper measurement setups for load circuits the W real power readings are always positive Negative W readings indicate reversed clamp on jaws direction or test leads polarities or even incorrect voltage lines are being measured as in 3 phase measurement setups Correct them for proper A lags V indications 2 When encountering largely distorted waveforms A lags V detection might be affected due to the influence of harmonics It is recommended to manage e g filter out harmonics problems before measuring dealing with phase shift problems kWH kilo Watt Hour Recording
10. only nominal Crest Factor lt 3 1 at full scale amp lt 6 1 at half scale for 40 00A 400 0A amp 600A ranges 1 Induced error from adjacent current carrying conductor lt 0 06A A 2 Specified accuracy is from 1 to 100 of range and for measurements made at the jaw center When the conductor is not positioned at the jaw center position errors introduced are e Add 1 to specified accuracy for measurements made WITHIN jaw marking lines away from jaw opening e Add 4 to specified accuracy for measurements made BEYOND jaw marking lines toward jaws opening PEAK rms HOLD ACA amp ACV only Response 65ms to gt 90 Frequency Range Accuracy 5Hz 500Hz 0 5 4d Sensitivity Sine RMS 40A range gt 4A 400A range gt 40A 600A gt 400A 600V range gt 30V Ohms Range Accuracy 5Hz 500Hz 0 5 4d Open Circuit Voltage 0 4VDC typical Audible Continuity Tester Audible threshold between 109 and 3002 Response time 250us Single Phase amp 3 Phase Balanced Load Power RANGE 5 0 Accuracy 1 2 3 600 0kVA F 10th 11th 45th 46th 51st SPT E 2 0 6d 3 5 6d 5 5 6d RANGE 5 0 Accuracy 1 2 4 600 0kW KVAR F 10th 11th 25th 26th 45th 46th 51st PF 0 98 5 70 2 0 6d PF 0 70 SNE bei 3 0 6d 4 5 6d 10 6d 0 50 PF 0 50 0 30 4 5 6d PF 0 30 d 5 0 20 10 6d 15 6d
11. with Total Power Factor in dual display KWHr Recording Display Hold PEAK rms HOLD Test leads pair batteries installed user s manual amp soft carrying pouch Accuracy is reading digits number of digits or otherwise specified at 23 C 5 C amp less than 75 RH True RMS ACV amp ACA clamp on accuracies are specified from 0 to 100 of range or otherwise specified Maximum Crest Factor are as specified below and with frequency spectrums besides fundamentals fall within the meter specified AC bandwidth for non sinusoidal waveforms Fundamentals are specified at 50Hz and 60Hz AC Voltage Range Accuracy 50Hz 60Hz 600 0V 0 5 5d 45Hz 500Hz 600 0V 1 5 5d 500Hz 3 1kHz 600 0V 2 5 5d CMRR gt 60dB DC to 60Hz Rs 1kQ Input Impedance 2M0 30pF nominal Crest Factor lt 2 1 at full scale amp lt 4 1 at half scale ACV AutoVATM Threshold 30VAC 40Hz 500Hz only nominal DC Voltage Range Accuracy 600 0V 0 5 5d NMRR gt 50dB 50 60Hz CMRR gt 120dB DC 50 60Hz Rs 1kO Input Impedance 2M0 30pF nominal DCV AutoVATM Threshold 2 4VDC nominal ACA Current Clamp on Range Accuracy 1 2 50Hz 60Hz 40 00A 400 0A 600A 1 0 5d 45Hz 500Hz 40 00A 400 0A 2 0 5d 600A 2 5 5d 500Hz 3 1kHz 40 00A 400 0A 2 5 5d 600A 3 0 5d ACA AutoVATM Threshold 1A AC 40Hz 500Hz
12. 0 7600 Fax 425 446 6390 Fax 905 890 6866 Non Warranty Repairs and Replacement Europe European non warranty units can be replaced by your Amprobe Test Tools distributor for a nominal charge Please check the Where to Buy section on www amprobe com for a list of distributors near you Amprobe Test Tools Europe In den Engematten 14 79286 Glottertal Germany tel 49 0 7684 8009 0 Correspondence only no repair or replacement available from this address European customers please contact your distributor customers please contact your distributor ACD 45PQ 600A Power Quality Clamp O00 E E Va Ir al HBB te Transformer Clamp Jaws for AC current magnetic field pick up Jaw marking lines for ACA amp thus Power position error indication Hand Finger Barrier to indicate the limits of safe access to the jaws during current measurements Push buttons for special functions amp features Input Jack for all functions EXCEPT non invasive ACA current amp thus Power function O Common Ground reference Input Jack for all functions EXCEPT non invasive ACA current amp thus Power function Slide switch Selector to turn the power ON OFF and Select a function LCD display Jaw trigger for opening the transformer clamp jaws Jaw center Indicators at where best ACA amp thus Power accuracy is specified ACD 45PQ 600A Power Quality Clamp
13. A AMPROBE ACD 45PQ 600A Power Quality Clamp Users Manual e Mode d emploi e Bedienungshandbuch e Manual d Uso e Manual de uso AAMPROBE ACD 45PQ 600A Power Quality Clamp Users Manual May 2010 Rev 1 2010 Amprobe Test Tools All rights reserved Printed in Taiwan Limited Warranty and Limitation of Liability Your Amprobe product will be free from defects in material and workmanship for 1 year from the date of purchase This warranty does not cover fuses disposable batteries or damage from accident neglect misuse alteration contamination or abnormal conditions of operation or handling Resellers are not authorized to extend any other warranty on Amprobe s behalf To obtain service during the warranty period return the product with proof of purchase to an authorized Amprobe Test Tools Service Center or to an Amprobe dealer or distributor See Repair Section for details THIS WARRANTY IS YOUR ONLY REMEDY ALL OTHER WARRANTIES WHETHER EXPRESS IMPLIED OR STAUTORY INCLUDING IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY ARE HEREBY DISCLAIMED MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES ARISING FROM ANY CAUSE OR THEORY Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages this limitation of liability may not apply to you Repair All test to
14. C and Electromagnetic compatibility directive 2004 108 EC UNPACKING AND INSPECTION Your shipping carton should include 1 ACD 45PQ 600A Power Quality Clamp 1 Test Leads Black x 1 Red x 1 1 Bag 1 Users Manual 2 1 5V AAA LRO3 NEDA 24A Batteries Installed If any of the items are damaged or missing return the complete package to the place of purchase for an exchange OPERATION ACAUTION Before and after hazardous voltage measurements test the voltage function on a known source such as line voltage to determine proper meter functioning SB Max D OA Power ua ne AAMRRORE A ete 5 AAMmPROBE H rome IT DN at AutoVA Function V A Set the slide switch function selector to the Auto position e With no input the meter displays Auto when it is ready e With no ACA current input via the jaws but a voltage signal above the nominal threshold of DC 2 4V or AC 30V 40Hz 500Hz up to the rated 600V is present on V COM terminals the meter displays the voltage value in appropriate DC or AC whichever larger in peak magnitude Annunciators Auto dc and Auto Aa turn
15. LCD displays the last 50Hz or 60 Hz setup Press SELECT button momentarily to select 50Hz or 60Hz to cope with your local line frequency Press Hz button for one second to store your selection and resume measurements PC Computer Interface Capabilities The instrument equips with an optical isolated data output port at the bottom case near the battery compartment Optional purchase PC interface kit USB KIT2 is required to connect the meter to PC computer USB port The Data Recording System software equips with a digital meter an analog meter a comparator meter and a Data Graphical recorder Refer to the README file comes with the interface kit for further details SPECIFICATIONS General Specifications Display Update Rate Polarity Low Battery Operating Temperature Relative Humidity Altitude Storage Temperature Temperature Coefficient Sensing Safety Transient protection Pollution degree Voltage functions 6000 counts LCD display Power Ohm amp Hz functions 9999 counts LCD display ACA clamp on function 4000 counts LCD display Power function 2 per second nominal Voltage ACA clamp on amp Ohm functions 2 per second nominal Hz function 1 per second nominal Automatic Below approx 2 4V 0 C to 40 C 32 to 104 F Maximum relative humidity 80 for temperature up to 31 C 88 F decreasing linearly to 50 relative humidity at 40 C 104 F Operating below 2000m 20
16. airing service Cleaning and Storage Periodically wipe the case with a damp cloth and mild detergent do not use abrasives or solvents If the meter is not to be used for periods of longer than 60 days remove the batteries and store them separately 22 Battery Replacement The meter uses standard 1 5V AAA Size NEDA 24A or IEC LRO3 battery X 2 Loosen the 2 captive screws from the battery cover case Lift the battery cover case Replace the batteries Replace battery cover case Re fasten the screws 23 Visit www Amprobe com for e Catalog e Application notes e Product specifications e User manuals amp Please Recycle
17. mp the jaws around Line 1 as reminded by annunciators D L1 and connect Black test probe COM terminal to Line n neutral and Red test probe terminal to Line 1 as reminded by annunciators NV ne t on mini display e When the reading is stable press JI button momentarily to enter the first measuring value e Then clamp the jaws around Line 2 as reminded by annunciators A L2 and connect Black test probe COM terminal to Line n neutral and Red test probe terminal to Line 2 as reminded by annunciators On de on mini display e When the reading is stable press 41 button momentarily to enter the second measuring value 12 e Then clamp the jaws around Line 3 as reminded by annunciators A L3 and connect Black test probe COM terminal to Line n neutral and Red test probe terminal to Line 3 as reminded by annunciators n 1 on mini display e When the reading is stable press JI button momentarily to enter the third measuring value The meter will then calculate store and display the total 3 Phase Power result automatically Annunciators D L1 L2 L3 turn on e Press 4J button momentarily again for new measurements e Press SELECT button momentarily to view el LL the last stored result Annunciator NH turns on amp flashes Press SELECT button momentarily again to continue ont Line Line 123n
18. nunciators A L1 and connect Black test probe COM terminal to Line 3 and Red test probe terminal to Line 1 as reminded by annunciators Q p on mini display e When the reading is stable press 4J button momentarily to enter the first measuring value e Then clamp the jaws around Line 2 as reminded by annunciators A L2 and connect Black test probe COM terminal to Line 3 and Red test probe terminal to Line 2 as reminded by annunciators 1 2 on mini display e When the reading is stable press 4 1 button momentarily to enter the second measuring value The meter will then calculate store and display the total 3 Phase Power result automatically Annunciators L1 L2 L3 turn on e Press J button momentarily again for new measurements e Press SELECT button momentarily to view et LL the last stored result Annunciator el turns on amp flashes Press SELECT button momentarily again to continue efont MAX 600K OVCA rege E Clamp to A AMPROBE Line 2 A AMPROBE ES ACD 45PG Se e 500A rower Qualy Clamp renia iim wottira AE 3 Phase 4 Wire 3 4W Unbalanced Load Power Function e Set the slide switch function selector to the 3 Un Bal Power position Press 3We4W button momentarily to select 4 Wire measurements Annunciator 4W turns on e Cla
19. ols returned for warranty or non warranty repair or for calibration should be accompanied by the following your name company s name address telephone number and proof of purchase Additionally please include a brief description of the problem or the service requested and include the test leads with the meter Non warranty repair or replacement charges should be remitted in the form of a check a money order credit card with expiration date or a purchase order made payable to Amprobe Test Tools In Warranty Repairs and Replacement All Countries Please read the warranty statement and check your battery before requesting repair During the warranty period any defective test tool can be returned to your Amprobe Test Tools distributor for an exchange for the same or like product Please check the Where to Buy section on www amprobe com for a list of distributors near you Additionally in the United States and Canada In Warranty repair and replacement units can also be sent to a Amprobe Test Tools Service Center see next page for address Non Warranty Repairs and Replacement US and Canada Non warranty repairs in the United States and Canada should be sent to a Amprobe Test Tools Service Center Call Amprobe Test Tools or inquire at your point of purchase for current repair and replacement rates In USA In Canada Amprobe Test Tools Amprobe Test Tools Everett WA 98203 Mississauga ON L4Z 1X9 Tel 888 993 5853 Tel 905 89
20. orted waveforms with the presence of harmonics however the simplified power expression should not be used since substituting the above mentioned pure sinusoidal V and A functions cannot fulfill the actual conditions Cosine of phase shift angle Cos or the displacement 6 power factor is no longer the only component constituting the overall power factor Harmonics do increase apparent power and thus decrease the overall power factor That is the Total Power Factor is actually affected by both phase shift angle and harmonics and is given by the expression Total Power Factor PF Real Power W Apparent Power VA In order to improve overall system power factor nowadays power system engineer needs to address both phase shift and harmonics problems Practically harmonics should be dealt with e g filtering out before phase shift to be corrected e g installing capacitors in parallel with inductive loads MAX 600 500 CATH PEAK mel GE G CH Ok 3 1 Si Po cenecton Tie AS 600A Power Quality Camp AMPROBE ACD 45PQ EENET COM entra A Single Phase Power amp 3 Phase Balanced Load Power Functions Set the slide switch function selector to the 3 Bal 1 Power position e Default at last selected function e Press 3 Bal e 1 button momentarily to toggle between Single Phase and 3 Phase Balanced Load Power functions Annunciators TV and 3 turn
21. rmed on circuits directly connected to the low voltage installation Examples are measurements on household appliances portable tools and similar equipment Terms In This Manual A WARNING identifies conditions and actions that could result in serious injury or even death to the user CAUTION identifies conditions and actions that could cause damage or malfunction in the instrument WARNING To reduce the risk of fire or electric shock do not expose this product to rain or moisture To avoid electrical shock hazard observe the proper safety precautions when working with voltages above 60 VDC or 30 VAC rms These voltage levels pose a potential shock hazard to the user Keep your fingers behind the finger guards of the test leads during measurement Inspect test leads connectors and probes for damaged insulation or exposed metal before using the instrument If any defects are found replace them immediately This Clamp on meter is designed to apply around or remove from uninsulated hazardous live conductors But still individual protective equipment must be used if hazardous live parts in the installation where measurement is to be carried out could be accessible CAUTION Disconnect the test leads from the test points before changing meter functions Only use the accompanied test leads or replace with the same rating or better CENELEC Directives The instruments conform to CENELEC Low voltage directive 2006 95 E
22. selected or manual selected press HOLD D button momentarily toggles to Hold mode The annunciator el turns on Hold mode freezes the display for later viewing Notes on Displacement Power Factor amp Total Power Factor e Introduction Power is the rate of change of energy with respect to time in terms of voltage V and current A Instantaneous real power w vi where v is the instantaneous voltage and i the instantaneous current The average real power is the mean of vi and is given by W w 2afvi dt over the interval from 0 to 20 w e Displacement Power Factor more traditional Assuming V and A are pure sinusoidal waveforms without harmonics as in most traditional cases that is v V sinwt and i I sin wt 8 the expression can be simplified to W 1 2 x Vx I x Cos where V and are the peak values 8 is the displacement power factor angle and Cos is the displacement power factor Using RMS values it is written as W Vrms x Arms x Cos Practically in such cases without harmonics 6 is also called the phase shift angle of the current A to the voltage V An inductive circuit is said to have a lagging power factor since current A lags voltage V phase shift angle 6 and thus Sind are both and a capacitive circuit is said to have a leading power factor since current A leads voltage V phase shift angle 6 and thus Sing are both e Total Power Factor encountering harmonics When encountering dist
23. sult 3 Phase Unbalanced Load Power This 3 Phase Unbalanced Load Power measurement is achieved thru the calculation of discrete single phase measurements that are taken one at a time manually Since it is not real time on all 3 phases simultaneously it is intended only for stable power conditions without significant power fluctuations over the time of measurements Result accuracy is hence the accumulated accuracy of the discrete single phase measurements plus the associated fluctuations 21 MAINTENACE AND REPAIR WARNING To avoid electrical shock disconnect the meter from any circuit remove the test leads from the input jacks and turn OFF the meter before opening the case Do not operate with open case Trouble Shooting If the instrument fails to operate check batteries and test leads etc and replace as necessary Double check operating procedure as described in this user s manual If the instrument voltage resistance input terminal has subjected to high voltage transient caused by lightning or switching surge to the system by accident or abnormal conditions of operation the series fusible resistors will be blown off become high impedance like fuses to protect the user and the instrument Most measuring functions through this terminal will then be open circuit The series fusible resistors and the spark gaps should then be replaced by qualified technician Refer to the LIMITED WARRANTY section for obtaining warranty or rep
24. ted readings can be selected by pressing the SELECT button momentarily A flashing denotes that kWHr Recording is still under going An always on D n denotes that KWHr Recording is being paused e When kWHr Recording is not activated kWHr stored result instead of accumulated readings is displayed when selected as in above Annunciator el turns on amp flashes e The meter separately stores one Single Phase and one 3 Phase Balanced Load kWHT result for later viewing When they are being viewed press 3 Bal e 1 button momentarily to toggle between them e When the display readings exceed 9999kWHr 999hours exponential readings are displayed 2 3E4 kWHr represents 2 3 x 104 kWHr or 23000 kWHr for example e After the kWHr Recording session is stopped ikop properly the new result will supersede the previous one stored in the non volatile memory You can then switch off the meter for transportation storage or even battery changing with memory remained e To avoid mis storage to memory it is important to properly stop Sb oP kWHr Recording session before sliding the slide switch function selector to any other function positions 3 Phase 3 Wire 3U3W Unbalanced Load Power Function e Set the slide switch function selector to the 3 Un Bal Power position Press 3We4W button momentarily to select 3 Wire measurements Annunciator 3W turns on e Clamp the jaws around Line 1 as reminded by an
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