ENGLISH User`s manual
Contents
1. is displayed See chapter 6 for the parameter s definition With the Ht and HV keys you can cycle through all available harmonic values from the 1 to the 25 order On the secondary display is shown the order of the harmonic whose percentage value is displayed on the main one ex H3 means third harmonic 4s to 25 order The secondary display indicates the order of the harmonic whose absolute value is displayed on the main one ex H3 means third harmonic If the display is difficult to read press D H key to hold the measured value To disable this function press the D H key again If the measurement is being performed in a dark environment press and hold the 8 key for 1 second to activate the backlight It automatically turns OFF after 5 seconds EN 15 ANY HT HT4020 HT4022 4 3 8 Power measurements on single phase systems _ AN The maximum Voltage input is 600V Do not attempt to take any voltage WARNING measurements exceeding the limits indicated in this manual Exceeding the limits could cause electrical shock or damage to the instrument Fig 12 power and energy measurement on single phase systems Select the W position Open the jaws and clamp only one cable Pay attention to the alignment marks see paragraph 4 1 2 and Fig 12 Insert the red plug into V Q jack and the black plug into COM one Connect the test leads to the circuit under test see Fig 12. DC to 25 order On the secondary display is shown the order of the harmonic whose absolute value is displayed on the main one ex H3 means third harmonic If the display is difficult to read press D H key to hold the measured value To disable this function press the D H key again If the measurement is being performed in a dark environment press and hold the key for 1 second to activate the backlight It automatically turns OFF after 5 seconds Press FUNC key to escape this mode going back to voltage measurement function see paragraph 4 3 1 EN 11 ANY HT HT4020 HT4022 4 3 4 Resistance and continuity measurement _ WARNING Before attempting any resistance measurement remove the power from the circuit under test and discharge all the capacitors if present Fig 8 resistance and continuity measurements Select the Q position Insert the red plug into V Q jack and the black plug into COM one For an easy measurement use the rubber test lead holster inserting in it one test lead see Fig 3 Connect the test leads to the circuit under test see Fig 8 The measured resistance value is displayed An audible beep sounds when the measured value is lower than 40Q The symbol O L means that the measured voltage is higher than the full scale of the instrument If the display is difficult to read press D H key to hold the measured value To dis
3. before executing a parallel connection WARNING h The maximum Voltage input is 600V Do not attempt to take any voltage measurements exceeding the limits indicated in this manual Exceeding the limits could cause electrical shock or damage to the instrument L3 a E 3 L3 mm E 3 L2 EA LI a Fig 16 phase detection Fig 17 phase detection with rubber cup 1 Select the gt position 2 Insert the red plug into V Q jack 3 The symbol 1PH is shown on the secondary display the instrument is ready to perform the first measurement 4 Connect the red terminal to the L1 phase conductor see Fig 16 1 measurement If necessary use the rubber cup to insert red test lead see Fig 17 1 measurement WARNING During this measurement e The instrument must always be held in the operator s hand e The test lead cable must not be in contact with or near to any voltage source that due to instrument sensitivity can abort the measurement 5 When an input voltage greater than 80V is detected the buzzer sounds and the symbols PH is shown on the main display Don t press any key and keep the test lead connected to L1 phase cable WARNING If the input voltage value is less to 80V the instrument doesn t show the PH symbol and it s not possible to execute the phase rotation detection EN 22 iw HT4020 HT4022 6 After about one se
4. Re phased capacitance when at least one of the harmonics has the same frequency as the resonance capacitance phenomenon Effects of this event can be very dangerous with explosion of used re phased capacitances RCD devices Possible saturation of current sensing toroidal transducers resulting in incorrect measurements Energy disk Increased rotation speed of a disk resulting in measurement error especially in cases of low counters power factor loads se controls Reduce of electrical duration of contact surfaces us Reduced power generation from UPS Electronics Internal damage of electronic components devices EN 31
5. activate the backlight that is automatically turned OFF after 5 seconds By pressing and holding the MAX MIN PK key for at least 1 second the instrument activates the maximum MAX minimum MIN and average AVG measurements All these values are continually updated even if only one of them is displayed With a simple MAX MIN PK key press the values are cyclically displayed To escape this function press and hold the MAX MIN PK key at least for 1 second or turn the selector to any position EN 18 ANY HT HT4020 HT4022 4 3 9 1 Energy measurement on three phase balanced systems _ 9 Select the W3 position Open the jaws and clamp the L3 phase cable Pay attention to the alignment marks see paragraph 4 1 2 and Fig 13 Insert the red plug into V Q jack and the black plug into COM one Connect the red test lead to L1 phase conductor and the black test lead to L2 phase conductor see Fig 13 The measured active power value and the symbol AC are displayed If the symbol is displayed the input voltage and or current value is higher than the instrument s full scale Therefore the power and power factor values could be incorrect Push ENERGY key and keep it pressed at least 1 second to active the energy measurement By pressing the 3 FUNC key the following parameters are displayed e Active energy kWh e Reactive energy kVA h capacitive C inductive I e Apparent energy kVAh e TIME wi
6. has a frequency of 60 Hz the second harmonic has a frequency of 120 Hz the third harmonic has a frequency of 180 Hz and so on Harmonic distortion is a constant problem and should not be confused with short durations events such as sags surges or spikes It can be noted that in 1 the index of sigma is from 1 to the infinity What happens in reality is that a signal does not have an unlimited number of harmonics a number always exists after which the harmonics value is negligible The EN 50160 standard recommends the index end in 2 in correspondence of the 40 harmonic A fundamental element to detect the presence of harmonics is THD defined as 40 Sv THD 1 This index takes all the harmonics into account The larger it is the more distorted the waveform gets EN 29 ANY HT HT4020 HT4022 8 2 LIMIT VALUES FOR HARMONICS EN 50160 fixes the limits for the harmonic voltages which can be introduced into the network by the energy provider Under normal conditions during whatever period of a week 95 if the RMS value of each harmonic voltage for a duration of 10 minutes will have to be less than or equal to the values stated in the following table The total harmonic distortion THD of the supply voltage including all the harmonics up to the 40 order must be less than or equal to 8 Odd harmonics Even harmonics Not multiple of 3 Multiple of 3 Order h Relative voltage Max Orderh R
7. into V Q jack and the black lead into the COM jack For ease of use attach the rubber holster and insert a test lead see Fig 3 3 Connect the test leads to the circuit under test see Fig 4 and Fig 5 The instrument automatically selects AC or DC For AC voltage measurements the frequency value is shown on the secondary display 4 The symbol indicates a negative DC voltage polarity 5 The O L symbol indicates a voltage higher than the full scale capability of the instrument 6 If the displayed value varies rapidly and reading it is difficult press the D H key to hold the displayed value To disable this function press the D H key again 7 If the measurement is being performed in a dark environment press and hold the key for 1 second to activate the backlight It automatically turns OFF after 5 seconds _ By pressing and holding the MAX MIN PK key for at least 1 second the instrument enables the maximum MAX minimum MIN average AVG and peak PK measurement recording mode All of these values are continually updated even if only one is shown Momentary MAX MIN PK keystrokes will cycle the display through these recorded values with their corresponding frequencies To disable this function press and hold the MAX MIN PK key for at least 1 second or turn the selector to any other position EN 9 ANY HT HT4020 HT4022 4 3 2 Frequency measurement with test leads _ h e The maximum Volta
8. not touch any unused terminal Do not measure resistance in the presence of external voltages Even if the circuit is protected excessive voltage could cause the instrument to malfunction When measuring current with the clamp jaws first remove the test leads from the instrument s input jacks When measuring current any other source near the clamp jaw could affect its accuracy When measuring current always put the conductor to be tested in the middle of the clamp jaw to obtain the most accurate reading as referred into paragraph 4 1 2 While measuring if the value remains unchanged check if the HOLD function is enabled AFTER USE After taking measurements turn off the clamp If the instrument is not be used for a long period remove the battery EN 3 ANYHT HT4020 HT4022 1 4 DEFINITION OF MEASURING OVERVOLTAGE CATEGORY The norm EN 61010 Safety requirements for electrical equipment for measurement control and laboratory use Part 1 General requirements defines what a measuring category usually called overvoltage category is Circuits are divided into the following measurement categories e Measurement category 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 e Measurement category Ill is for measurements performed in the building installation Examples are mea
9. of these values are continually updated even if only one of them is displayed By repeatedly pressing the MAX MIN PK key each value is displayed with the corresponding frequency To disable this function e Press and hold the MAX MIN PK key for at least 1 second e Rotate the selector to any position 4 2 4 ENERGY key With the rotary selector on W or W3 position press and hold this key at least 1 second to activate the energy measurement With the rotary selector switch in the following positions e W push the ENERGY key to start the active energy reactive energy apparent energy and power factor measurements on single phase systems Pushing FUNC key every single parameter value is displayed e W30 push the ENERGY key to start the active energy reactive energy apparent energy and power factor measurements on three phase balanced systems Pushing 3 FUNC key every parameter value is displayed EN 8 ANYHT HT4020 HT4022 4 3 DESCRIPTION OF ROTARY SWITCH FUNCTIONS 4 3 1 AC DC voltage measurement WARNING e The maximum Voltage input is 600V Do not attempt to take any voltage AN measurements exceeding the limits indicated in this manual Exceeding the limits could cause electrical shock or damage to the instrument e The instrument won t measure any AC value less than 1 5V Fig 4 AC voltage measurement Fig 5 DC voltage measurement Select the V 73 position 2 Insert the red lead
10. reserving the right to decide either to repair or replace the product In the event of returning the equipment to the after sales service or to a regional branch the outward transport is payable by the customer The delivery must be agreed in advance with consignee For delivery indicate by means a note enclosed with the equipment as clear as possible the reasons for returning it use only the original packing Any damaging caused by shipment using NOT original packaging will be charged in any case to the consignor The manufacturer will not be responsible for any damage against persons or things The warranty doesn t apply to the following cases e Accessories and battery aren t included in warranty e Repairs following unsuitable use of the equipment or by combining the latter with incompatible equipment e Repairs resulting from a not correct shipping e Repairs resulting from servicing carried out by a person not approved by the company e Modifications to the equipment without explicit authorization from our technical departments e Adaptation to a particular application not provided for by the definition of the equipment or by the instruction manual The contents of this manual may not be reproduced in any form whatsoever without our agreement Our products are patented The logotypes are registered We reserve the right to modify characteristics and prices as part of technological developments which might require th
11. the measurement is being performed in a dark environment press and hold the 2 key for 1 second to activate the backlight It automatically turns OFF after 5 seconds 7 Press FUNC key to escape this mode going back to current measurement function see paragraph 4 3 5 By pressing and holding pressed MAX MIN PK key at least for 1 second the instrument activates the maximum MAX minimum MIN and average AVG measurements All these values are continually updated even if only one of them is shown With a simple MAX MIN PK key pushing the values are cyclically displayed To escape this function press and hold pressed MAX MIN PK key at least for 1 second or turn the selector to any position EN 14 ANY HT HT4020 HT4022 4 3 7 Measurement of current harmonics HT4022 only _ WARNING Press the 3 FUNC key to switch to the absolute harmonics values displaying from Before attempting any measurement disconnect all the test leads from the circuit under test and from the meter s input terminals CORRECT INCORRECT Fig 11 harmonic current measurement Select the A position Press the 3 FUNC key and keep it pressed at least 1 second until symbol THD is displayed Open the jaws and clamp only one cable Pay attention to the alignment marks see paragraph 4 1 2 and Fig 11 The instrument displays the Total Harmonic Distortion value of the input signal The symbol THD
12. 2 The measured active power value and the symbol AC are displayed If the symbol is displayed the input voltage and or current value is higher than the instrument s full scale Therefore the power and power factor values could be incorrect By pressing the 3 FUNC key the following parameters are shown e Active power kW e Reactive power kVA capacitive C inductive I e Apparent power kVA e Power factor Pfi or Pfc for inductive and capacitive respectively If reading the display is difficult press the D H key to hold the value To disable this function press D H key again If the measuring in a dark environment press and hold the key for at least 1 second to activate the backlight It automatically turns OFF after 5 seconds By pressing and holding the MAX MIN PK key for at least 1 second the instrument activates the maximum MAX minimum MIN and average AVG measurements All these values are continually updated even if only one of them is displayed With a simple MAX MIN PK key press the values are cyclically displayed To escape this function press and hold the MAX MIN PK key at least for 1 second or turn the selector to any position EN 16 ANYHT HT4020 HT4022 4 3 8 1 Energy measurements on single phase systems 1 2 9 Select the W position Open the jaws and clamp only one cable Pay attention to the alignment marks see paragraph 4 1 2 and Fig 12 Insert t
13. ENGLISH User s manual ITALIA CE opyright HT ITALIA 2003 ANYHT HT4020 HT4022 CONTENTS 1 SAFETY PRECAUTIONS AND PROCEDURES isiciseccsccstcctsdessiiscnticnecssecteddistesaiatacnededeesenatbacertes 2 1 1 Preliminary IMSTHUCUONS iscc scectstens santented tiveetaeedete ecdeveieesteedavinedethasl evs hone a a aa Aaaa a ed 2 1 2 DUNG US Gis aa aea veense ie baby aa aa a reve diueendy sist aeaa a a aiai a a 3 1 3 After USC naar AEE aa AAE a Ar le LANENA EEEE EEEE 3 1 4 Definition of measuring overvoltage category essssesiseerriiseeriireriirseerintntiirrnsrrrnssrrirnertns 4 2 GENERAL DESCRIP TION sits cecenenacaviinsanictceusadeatduatandondaaupauaeiateusthnentvcaewtansjacdiunceomcaachaketshaaancanteu 5 3 PREPARATION FOR USE veciicucetcadaasanssznnsaxednanwiisasodestts dendhiwsdvenctsaniausadasdextsabniniinesdsndadstucsdeeddsnatiarels 5 3 1 Preliminary CHOCKS cz coccis cectaeeeeesenedesvinctoessnpeign are ad A Ta A AELA EEE AREENA E naai aa aaie E 5 3 2 Power SUDDIY case neiedist cavities a ar a aE raaa AE EDren a cee alate cea 5 3 3 Galbratlo Meee eae E E aE E aA E Ea TAa decent EEEE aa a CEER 5 e E E o e o e E N E T 5 A OPERATING INSTRUCTIONS visonerien ienna EEan aN nene nE E r ea 6 4 1 INStrUMOENTOOSCHIPUION seisoa anai aa trees Ai eetbhael heehee 6 Alte COntrolS deSCription seisanud a naaa eaaa ne aaae baia 6 4 1 22 2ANQAIMENt MAR Sreser araa A EEEE E E tne 6 4 1 3 Rubber cap use to hold test leads c
14. able this function press the D H key again If the measurement is being performed in a dark environment press and hold the key for 1 second to activate the backlight It automatically turns OFF after 5 seconds By pressing and holding pressed MAX MIN PK key at least for 1 second the instrument activates the maximum MAX minimum MIN and average AVG measurements All these values are continually updated even if only one of them is shown With a simple MAX MIN PK key pushing the values are cyclically displayed To escape this function press and hold pressed MAX MIN PK key at least for 1 second or turn the selector to any position EN 12 ANY HT HT4020 HT4022 4 3 5 AC current measurement WARNING Before attempting any measurement disconnect all the test leads from the circuit under test and from the meter s input terminals CORRECT INCORRECT Fig 9 AC current measurements _ Select the A position 2 Open the jaws and clamp only one cable Pay attention to the alignment marks see paragraph 4 1 2 and Fig 9 The values of current and frequency are shown on the main and secondary displays 3 The symbol O L means that the measured voltage is higher than the full scale of the instrument 4 lf the display is difficult to read press the D H key to hold the measured value To disable this function press the D H key again 5 If the measurement is being performed in a dark env
15. ceesatesscceesbeneedahevacdelesacevasheaveteasiesseetetadeansieeye 27 AE ETERO E EE A E E O N E E oben cee 27 6 2 Environmental CONILIONS cscisessecesccsceescceesceceeeceaseeae cocensaeaneveve seananesaawavee ecennesscanevdevaceetanetane 27 6 2 1 Climatic conditons sess isesrriisersrsiirenn inan kas neak K NENEN ANAREN RAAKA RN AKKE EENES ARNAR ARE NEN RAAKAA EKEKA ARAKERE 27 6 2 2 EMG ssnipe aa ai a aa aaa aa aai o Aa Nai 27 6 3 ACCOSSOMES aiea aaraa aaae aa Ae Aa aaan aaa aaae aada aa Teia aaea aia a aaa 27 6 3 1 Standard ACCESSOrES vivsssiessvacideceds saciiverecesdatvaatenduateveas aA aA REE A AAE AA A AA aa 27 T SERVICE srein a E a aa 28 TA Warranty COnditons ssis nisreen eiai aaar da Ea aeaa ea iaaa iia Ea aara eaa Eaa 28 TP AE E ET ES E E E 28 8 APPENDIX VOLTAGE AND CURRENT HARMONICS c cccccccccceeseececeeeeeeeeeeessnnsaeeeeeeeeeneess 29 Silen INSO cs tecceecceevscceceens E a E S 29 8 2 Limit values for harmonics ccceeeee cece eeeeeeee aces eeeeeeeeceaeaeeeeeeeeeeseceaaeeaeeeeeeeeeeccesaeeeeeeeeseneaas 30 8 3 Causes for the presence Of NArMONICS eeeeceeeeeeceeeeneeeeeeeeeeeeeeteaeeeeeeeaaeeeeeeeaeeeeteeeeeees 30 8 4 Consequences of the presence Of harmonics eeeeeeeeeeeeeeeeeneeeeeeeeeeeeeteeaeeeeeneaeeeeteeeeeees 31 EN 1 ANYHT HT4020 HT4022 1 SAFETY PRECAUTIONS AND PROCEDURES This instrument has been designed in compliance with EN 61010 directive For your own saf
16. cond MEASURING appears on the display indicating that the instrument is ready to execute the first measurement 7 Press the FUNC key the MEASURING symbol will disappear 8 Disconnect the test lead The symbol 2PH appears on the secondary display The instrument is now ready to perform the second measurement 9 Connect the test lead to the second cable see Fig 14 or Fig 15 2 measurement 10 When an input voltage greater than 80V is detected the buzzer sounds and the symbols PH is shown on the main display Don t press any key and keep the test lead connected to L1 phase cable WARNING If the input voltage value is less to 80V instrument doesn t show PH symbol and its not possible to execute the phase rotation detection 11 After about one second MEASURING appears indicating the instrument is ready to execute the second measurement 12 Press the lt FUNC key the MEASURING symbol disappears WARNING If you Wait more than 10 seconds between the first lt FUNC key press and the second the instrument will display the SEC message and it s necessary to repeat all the measurements from the beginning Rotate the selector to any position to escape the function and restart at step 1 13 If the two test cables belong to the same phase the instrument displays 1 1 otherwise it displays 2 1 3 or 1 2 3 This indicates that the two cables be
17. cs Size Weight including battery Jaws opening Max conductor size Power supply 205 L x 64 W x 39 D mm about 280g batteries included 30mm 30mm Battery type 2 batteries 1 5V LRO3 AAA Low battery indication Symbol L 9 is displayed when battery level is too low Battery life About 90 hours of continue measurement Display Characteristics 4 dgt LCD with maximum reading 9999 units plus decimal point and sign Sample rate 64 samples in 20ms Conversion mode TRMS 6 2 ENVIRONMENTAL CONDITIONS 6 2 1 Climatic conditions Reference temperature 23 5T Operating temperature 5 40 C Operating humidity lt 80 RH Storage temperature 10 60 C Storage humidity lt 80 RH 6 2 2 EMC This apparatus was designed in accordance with EMC standards in force and its compatibility has been tested in accordance EN61326 1997 A1 1998 A2 2001 6 3 ACCESSORIES 6 3 1 Standard accessories The accessories contained inside the packaging are the following e Instrument e Rubber cup for test lead holder e Bag e Couple of test leads e Certificate of calibration e Batteries e Couple of alligator clips e User s manual EN 27 uw HT4020 HT4022 7 SERVICE 7 1 WARRANTY CONDITIONS This equipment is guaranteed against any material fault or manufacturer s defect in accordance with the general conditions of sale During the warranty period one year faulty parts may be replaced with the manufacturer
18. current 1A freq 50 60Hz Pf 0 8i 0 8c Phase sequence and phase coincidence Range Frequency range Input impedance Overload protection 50 600V 40 69Hz 1MQ 600V RMS EN 26 HT4020 HT4022 MAX MIN AVG Resistance and Continuity test Range Resolution Accuracy Tempo di risposta 0 0 499 90 0 10 500 9990 10 1 0 rdg 5 dgt 1s 1000 1999Q 32 Instrument emits a buzzer for R lt 40Q MAX MIN AVG Frequency with test leads with jaws Range Resolution Accuracy Tempo di risposta 40 0 399 9Hz 0 1Hz 0 5 rdg 1 dgt 1s Max Af At 0 5Hz s MAX MIN AVG Active power Reactive power Apparent power Range kW kVAR kVA Resolution kW kVAR kVA Accuracy Tempo di risposta 0 1 99 99 0 01 3 5 1 100 0 999 9 01 Aa IGG 0 Accuracy defined for sine wave voltage 230 400V current 21A freq 50 60Hz Pf 0 8i 0 8c MAX MIN AVG Power factor Range Resolution Accuracy Response time 0 20 1 00 0 01 3 1s Accuracy defined for sine wave voltage 230 400V current 22A freq 50 60Hz 6 1 1 Safety standards Comply with EN 61010 Insulation Class 2 double reinforced insulation Pollution Level 2 For inside use max height 2000m Over voltage 6 1 2 General data CAT III 600V between terminals and ground Mechanical characteristi
19. d on the top of the clamp can hold one of the two test leads as shown in Fig 3 t Fig 3 Use of rubber test lead holster This rubber holster has a very practical use It allows the user to perform the measurements with both test leads while more easily observing the value on the display at the same time 4 1 4 AUTO POWER OFF function In order to extend the battery life the instrument switches off 5 minutes after the last rotary switch or button actuation When this function is enabled the symbol Ois displayed To disable this function rotate the selector to the OFF position then rotate the selector to any position while the lt 3 FUNC key is pressed Rotating the selector switch to the OFF position then back to any function again will re enable the AUTO POWER OFF function 4 2 DESCRIPTION OF FUNCTION KEYS 4 2 1 FUNC key This key allows the user to cycle through each function s measurement modes with each key press e Vw press FUNC key to select between voltage and frequency measurement e A J press FUNC key to select between current and frequency measurement e Q press FUNC key to start phase sequence detection e W press 3 FUNC key to select between active energy reactive energy apparent energy and power factor measurements on single phase systems e W30 press amp FUNC key to select between active energy reactive energy apparent energy and power factor measurements on three phas
20. e balanced systems On the HT4022 model only press amp hold the FUNC key for at least 1 second to activate the Harmonic measurement mode With the rotary selector switch in the following positions EN 7 ANY HT HT4020 HT4022 e V3 press and hold the FUNC key for at least 1 second to activate the voltage harmonic measurement By pressing the HT and H4 keys the individual harmonic values are displayed e A J press and hold the FUNC key for at least 1 second to activate the current harmonic measurement By pressing the HT and H4 keys the individual harmonic values are displayed This function mode is disabled by e Pressing and holding the FUNC key for at least 1 second e Rotating the selector to any other position More details about the 3 FUNC key use are specified in the measurements paragraphs 4 2 2 D H amp key This key enables the HOLD function The symbol is displayed when this function is enabled To disable this function e Press the D H key again e Rotate the rotary selector switch to another position Press and hold the amp key for 1 second to illuminate the backlight The backlight automatically turns off about 5 seconds after the last rotary selector switch or button actuation 4 2 3 MAX MIN PK key By pressing and holding the MAX MIN PK key for at least 1 second the instrument activates the maximum MAX minimum MIN average AVG and peak PK measurement modes All
21. e must not be in contact with or near to any voltage source that due to instrument sensitivity can abort the measurement WARNING e The detected voltage is NOT the phase to neutral voltage but the voltage between the conductor and the operator who is holding the instrument This value can be lower than the phase to neutral voltage DON T TOUCH THE PHASE CABLE IF YOU AREN T SURE THAT ANY VOLTAGE IS PRESENT e lf the operator is insulated from the ground e g insulated floors shoes with rubber souls etc the instrument may not measure correctly We recommend repeating test at least twice due to verify the rightness of the obtained result EN 24 ANY HT HT4020 HT4022 5 MAINTENANCE 5 1 GENERAL INFORMATION 1 2 3 This digital clamp meter is a precision instrument Whether in use or in storage please do not exceed the specifications to avoid any possible damage or danger during use Do not place this meter in high temperature and or humidity or expose to direct sunlight Be sure to turn the meter off after use For long term storage remove the batteries to avoid leakage of battery fluid that can damage the internal components 5 2 BATTERY REPLACEMENT When the LCD displays the g i symbol replace the batteries D Ore DN WARNING Only experts and trained technicians should perform this operation Remove the test leads or the circuit under test before replacing the bat
22. eeecceeeeccneceeeeeeeneeceaeeeeaaeseeaeeeeaeeeseaeeseaaeseeeeeseaaeeseaaeennees 7 4 1 4 AUTO POWER OFF function 0 0 cccccccsceesceeceeeeecececeaeceaeceaeceaeseaeeeeeeseneseeeeeaeesaeeseseesaeesaeeeaaeeaaes 7 4 2 Description Of TUNCTION KOYS esris reinen eai iaeaea ea iiaa esdende iene seis ekaa iaaea ESNEA 7 OD F a AE 7 42 2a DA cae ace ain ccc E A E et oes 8 42 3 MAX MIN PK KEY cescu aaa aa a a aaa aa a d Aaaa aa Taas REETA 8 BOA ENERGY Ky sscetcccaccctesscaatevid noaa Aaaa ANa EKAA E aAA aaa Aana e TAARE TERA 8 4 3 Description of rotary switch FUNCTIONS 00 eee cece eee eenteeeeeenteeeeeeaaeeeeeeaeeeeeseeaeeeeenaeeeeteaeeeees 9 4 3 1 AC DC voltage measurement ciccescteccsses cchcnsheceecevaeecaveienecedenas ccdenebeeen ce beat eadees nectenebaaeceeneeccnnebatens 9 4 3 2 Frequency measurement with test leads cccccecececeeeeeeeneeeeaeeeeeeeceeeeeeeaaeseeeeeseeeeeeaeeseaeeeeaes 10 4 3 3 Measurement of voltage harmonics HT4022 omly c ccceccceeseeeeeeeeeeeeeeeeaeeeeaeeeseeeeseaeeseeeeeaes 11 4 3 4 Resistance and continuity MEASUPEMENK eee cee cece ee eeee eee eeeee eter tenet eee teaeeeeeeeeeeeeteaaeeeeeeaaeees 12 4 3 5 AC current MEASUFEMEN cccccceceececeseeececessneeeeesseeeeeeeseneeeeeseneseceseeeseesseneseesseesaeesseesaaeensennaees 13 4 3 6 Frequency measurement from the jaws ccccceeseeeeeeeeeeeeeeeeaeeeeeeeeeaeeeeaaeeeeeeeseeeeseaeeseaeeteaes 14 4 3 7 Measurement of current harmo
23. elative voltage Max Orderh Relative voltage Max 5 6 3 5 2 2 7 5 9 1 5 4 1 11 3 5 15 0 5 6 24 0 5 13 3 21 0 5 17 2 19 1 5 23 1 5 25 1 5 These limits theoretically applicable only for the supplier of electric energy provide however a series of reference values within which the harmonics introduced into the network by the user must be contained 8 3 CAUSES FOR THE PRESENCE OF HARMONICS Any apparatus that alters the sine wave or uses only a part of such a wave causes distortions to the sine wave and therefore harmonics All current signals result in some way virtually distorted The most common situation is the harmonic distortion caused by non linear loads such as electric household appliances personal computers or motor speed control drives Harmonic distortion causes significant currents at frequencies that are odd multiples of the fundamental frequency Harmonic currents affect the neutral current In most countries the mains power is three phase 50 60Hz with a delta primary and star secondary transformers The secondary generally provides 230V AC from phase to neutral and 400V AC from phase to phase Balancing the loads on each phase has always represented a headache for electric systems designers Until some ten years ago in a well balanced system the vector sum of the currents in the neutral was zero or quite low given the difficulty of obtaining a perfect balance The devices were incandescent lights sma
24. em 7 2 AFTER SALE SERVICE If the equipment weren t correctly working before contacting the SERVICE test the battery condition the test leads etc and change them if necessary If the equipment still weren t working check if your operating procedure agrees with the one described in this manual In the event of returning the equipment it must be re sent to the after sales service at address or to a regional branch the outward transport is payable by the customer The delivery must be agreed in advance with consignee For delivery indicate by means a note enclosed with the equipment as clear as possible the reasons for returning it use only the original packing Any damage caused by delivery with NO original packaging will be charged in any case to the consignor EN 28 ANY HT HT4020 HT4022 8 APPENDIX VOLTAGE AND CURRENT HARMONICS 8 1 THEORY Any periodical non sine wave can be represented as a sum of sinusoidal waveforms each having a frequency that corresponds to an integer multiple of the fundamental frequency according to the relation W t V DV sin o f Q 1 k 1 where Vo Average value of v t V Amplitude of the fundamental of v t Vk Amplitude of the k harmonic of v t LEGENDA 1 Fundamental 2 Third Harmonic 3 Distorted waveform sum of two previous components Effect of the sum of 2 multiple frequencies In the mains voltage the fundamental
25. ety and to avoid damaging the instrument we suggest you follow the procedures hereby prescribed and to read carefully all the notes preceded by the symbol A WARNING Should you fail to keep to the prescribed instructions you could damage the instrument and or its components or endanger your safety Take extreme care of the following conditions while taking measurements e Do not measure voltage or current in humid or wet environments e Do not use the clamp in the presence of explosive gas material combustible gas material steam or dust e Do not touch the circuit under test if no measurement is being taken e Do not touch exposed metal parts unused terminals circuits and so on e Do not use the instrument if it seems to be malfunctioning i e if you notice deformations breaks leakage of substances absence of segments on the display and SO On e Be careful when you measure voltages exceeding 20V as you may risk electrical shocks e Take care not to allow your hand to pass over the Safety Guard see Fig 1 pos 2 on current measurements and voltage measurements using the holster The following symbols are used Caution refer to the instruction manual An incorrect use may damage the tester or its components High voltage danger risk of electric shocks Double insulated meter OPE AC voltage or current DC voltage or current 1 1 PRELIMINARY INSTRUCTIONS e This clamp has been designed f
26. ge input is 600V Do not attempt to take any voltage WARNING measurements exceeding the limits indicated in this manual Exceeding the limits could cause electrical shock or damage to the instrument e The instrument won t measure any AC value less than 1 5V Fig 6 frequency measurement with test leads Select the V x position Press the 3 FUNC key to select the Hz function in AC mode Press the lt 3 FUNC key again to return to the voltage measurement function Insert the red plug into V Q jack and the black plug into the COM jack For ease of use attach the rubber holster and insert a test lead see Fig 3 Connect the test leads to the circuit under test see Fig 6 The measured frequency value is displayed The O L symbol indicates a voltage higher than the full scale capability of the instrument If the display is difficult to read press D H key to hold the measured value To disable this function press the D H key again If the measurement is being performed in a dark environment press the 8 key for at least 1 second to activate the backlight It automatically turns OFF after 5 seconds By pressing and holding pressed MAX MIN PK key at least for 1 second the instrument activates the maximum MAX minimum MIN and average AVG measurements All these values are continually updated even if only one of them is shown With a simple MAX MIN PK key pushing the values a
27. he red plug into V Q jack and the black plug into COM one Connect the test leads to the circuit under test see Fig 12 The measured active power value and the symbol AC are displayed If the symbol is displayed the input voltage and or current value is higher than the instrument s full scale Therefore the power and power factor values could be incorrect Press and hold the ENERGY key for at least 1 second to active the energy measurement mode By pressing the FUNC key the following parameters are displayed e Active energy kWh e Reactive energy kVA h capacitive C inductive I e Apparent energy kVAh e TIME with indication of energy measurement duration Press the ENERGY key to activate the energy measurement The message MEASURING appears at the bottom of the display Press the ENERGY key again to stop the energy measurement the message MEASURING disappears from the display If the reading were difficult press D H key to hold the obtained value To escape this function press the D H key again 10 If the measurement was performed in dark environments press and hold the key at least for 1 second to activate the backlight that is automatically turned OFF after 5 seconds 11 Push ENERGY key and keep it pressed at least 1 second to escape from the energy measurement mode EN 17 ANY HT HT4020 HT4022 4 3 9 Power measurements on three phase balanced systems _ h The max
28. he red test lead see Fig 15 1 measurement WARNING During this measurement e The instrument must be held in the operator s hand e The test lead cable must not be in contact with or near to any voltage source that due to instrument sensitivity can abort the measurement 5 When an input voltage greater than 80V is detected the buzzer sounds and the symbol PH is shown on the main display Don t press any key and keep the test lead connected to L1 phase cable WARNING If the input voltage value is less to 80V the instrument doesn t show PH symbol and it s not possible to execute the phase rotation detection EN 20 iw HT4020 HT4022 6 After about one second MEASURING appears on the display indicating that the instrument is ready to execute the first measurement 7 Press the FUNC key the MEASURING message will disappear 8 Disconnect the test lead and the symbol 2PH appears on the secondary display the instrument is ready to perform the second measurement 9 Connect the test lead to the L2 phase conductor see Fig 14 or Fig 15 2 measurement 10 When an input voltage greater than 80V is detected the buzzer sounds and the symbols PH is shown on the main display Don t press any key and keep the test lead connected to L2 phase cable WARNING If the input voltage value is less to 80V instrument doesn t show PH symbol and it s not pos
29. imum input for Voltage measurements is 600V Do not attempt to WARNING take any voltage measurement exceeding the limits indicated in this manual Exceeding the limits could cause electrical shock at the operator and damages to the clamp meter E L2 4 m S S TD 3 INTP i com win fe Fig 13 power and energy measurement on three phase balanced systems Select the W3 position Open the jaws and clamp the L3 phase cable Pay attention to the alignment marks see paragraph 4 1 2 and Fig 13 Insert the red plug into V Q jack and the black plug into COM one Connect the red test lead to L1 phase conductor and the black test lead to L2 phase conductor see Fig 13 The measured active power value and the symbol AC are displayed If the symbol is displayed the input voltage and or current value is higher than the instrument s full scale Therefore the power and power factor values could be incorrect By pressing the 3 FUNC key the following parameters are displayed e Active power kW e Reactive power kVA capacitive C inductive I e Apparent power kVA e Power factor Pfi or Pfc for inductive and capacitive respectively If the reading were difficult press D H key to hold the obtained value To escape this function press the D H key again If the measurement was performed in dark environments press at least for 1 second the 8 key to
30. ironment press and hold the 2 key for 1 second to activate the backlight It automatically turns OFF after 5 seconds By pressing and holding the MAX MIN PK key at least for 1 second the instrument activates the maximum MAX minimum MIN average AVG and peak PK measurements All of these values are continually updated even if only one of them is displayed With a simple MAX MIN PK key press the values are cyclically displayed including frequency except for peak measurements which maximum value s frequency is associated to To escape this function press and hold the MAX MIN PK key at least for 1 second or turn the selector to any other position EN 13 wn HT4020 HT4022 4 3 6 Frequency measurement from the jaws WARNING Before attempting any measurement disconnect all the test leads from the circuit under test and from the meter s input terminals CORRECT INCORRECT Fig 10 frequency measurements from the jaws _ Select the A position 2 Press FUNC key to select Hz function 3 Open the jaws and clamp only one cable Pay attention to the alignment marks see paragraph 4 1 2 and Fig 10 The value of frequency is shown on main display 4 The symbol O L means that the measured voltage is higher than the full scale of the instrument 5 If the display is difficult to read press D H key to hold the measured value To disable this function press the D H key again 6 If
31. ll motors and other devices that presented linear loads The result was an essentially sinusoidal current in each phase and a low current on the neutral at a frequency of 50 60Hz Modern devices such as TV sets fluorescent lights video machines and microwave ovens normally draw current for only a fraction of each cycle thus causing non linear loads and subsequent non linear currents All this generates odd harmonics of the 50 60Hz line frequency For this reason the current in the transformers of the distribution boxes contains only a 50Hz or 60Hz component but also a 150Hz or 180Hz component a 50Hz or 300Hz component and other significant components of harmonic up to 750Hz or 900HZ and higher The vector sum of the currents in a well balanced system that feeds non linear loads may still be quite low However the sum does not eliminate all current harmonics The odd multiples of the third harmonic called TRIPLENS are added together in the neutral conductor and can cause overheating even with balanced loads EN 30 NYHT HT4020 HT4022 8 4 CONSEQUENCES OF THE PRESENCE OF HARMONICS In general even harmonics i e the 2 4 etc do not cause problems Designers should take into consideration the following points when designing a power distribution system that will contain harmonic current Installation parts Effects attributed to Harmonics Heating of internal fuse elements This over heating can cause an explosio
32. long to two different phases WARNING e The detected voltage is NOT the phase to neutral voltage but the voltage between the conductor and the operator who is holding the instrument This value can be lower than the phase to neutral voltage DON T TOUCH THE PHASE CABLE IF YOU AREN T SURE THAT ANY VOLTAGE IS PRESENT e f the operator is insulated from the ground e g insulated floors shoes with rubber souls etc the instrument may not measure correctly We recommend repeating test at least twice due to verify the rightness of the obtained result EN 23 ANY HT HT4020 HT4022 4 3 10 2 Phase detection WARNING AN The maximum Voltage input is 600V Do not attempt to take any voltage measurements exceeding the limits indicated in this manual Exceeding the limits could cause electrical shock or damage to the instrument Fig 18 Voltage detection Fig 19 Voltage detection with rubber cup _ Select the 9 position 2 Insert the red plug into V Q jack 3 Connect the red terminal to the L1 phase conductor see Fig 18 1 measurement If necessary use the rubber cup to insert red test lead see Fig 19 1 measurement 4 When an input voltage greater than 80V is detected the buzzer emits a sound and the symbols PH is shown on the main display WARNING During this measurement e The instrument must be held in the operator s hand e The test lead cabl
33. n of the fuse casing Increase in body effect This means for cables with many wires the internal wires have higher impedance than external wires due to their inability to dissipate heat The consequence of this is the current which normally is distribute along the external surface of Cables wire produces anover heating of the conductor apremature degrading of the cable s insulation an increase in line voltage drop The triplens harmonics odd multiples of three sum on the neutral conductor instead of erasing Neutral conductor themselves and generate a potential danger over heating situation of the same conductor Increasing of copper loss due to a higher TRMS current value that circulate on internal circuits and due to body effect present on protected wires also Transformer Increasing of iron loss due to hysteresis cycle distortion and due to generation of leakage currents on magnetic core Heating of insulation material due to eventually DC component that can generate saturation of magnetic core column Increase of loss due to over heating of internal circuits and possible damage of insulation Motors material Increase i in motor vibration reducing efficiency and causing premature motor wear The 5 and 11 harmonic components generate some abnormal electromagnetic coupling that can increase motor speed Increase in parallel resonance present inside a circuit due to inductive loads and re phased
34. ncy with clamp jaws Resistance Continuity test Phase rotation with only one test lead Active reactive apparent power and power factor measure on single phase systems Active reactive apparent power and power factor measure on balanced three phase systems e Active reactive apparent energy measurements on single phase systems e Active reactive apparent energy measurements on balanced three phase systems Each parameter can be selected using the 7 position rotary switch including an OFF position There are also the following buttons 3 FUNC MAX MIN PK ENERGY and D H amp HT4020 only or FUNC HARM MAX MIN PK HY ENERGY Ht and D H HT4022 only For their use please see paragraph 4 2 The selected quantity appears on a high contrast display with unit and function indication 3 PREPARATION FOR USE 3 1 PRELIMINARY CHECKS This instrument has been checked mechanically and electrically before shipment All precautions have been taken to assure that the instrument reaches you in perfect condition However it is advisable to carry out a rapid check in order to detect any possible damage which might have occurred in transit Check the accessories contained in the packaging to make sure they are the same as reported in paragraph 6 3 1 3 2 POWER SUPPLY The instrument is supplied with 2 AAA batteries The instruments battery life is about 90 hours The Susie symbol ap
35. nics HT4022 Only c ccccccceeeeeeeeeeeceeeeeeeaeeeeaeeeseaeeeseaeeeeeeeeaes 15 4 3 8 Power measurements on single phase Systems cc ceeeeeeeeeeeeeeeeceeeeeeaeeeeaeeeseaeeesaeeseeeeeaes 16 4 3 8 1 Energy measurements on single phase SYStOMS ceeeseeeeeeeeneeeeeeeeeeseeeeeeeneeeeaeeseeeeeanees 17 4 3 9 Power measurements on three phase balanced SYStOMS cc ceceeeeeeeeeeeeeeeteeeeeseeeeeeaeeteaes 18 4 3 9 1 Energy measurement on three phase balanced systems esceeseeeeeeeteseeeeeeeeeeeeeneeeenees 19 4 3 10 Detection of phase sequence ccceeeeeseceeeeeeaeeeeneeeeneeeeeaaeseeaeesaeeeseaeeeeaaesdaneeseaeeesaaesteneeeeaas 20 4 3 10 1 Detection of phase COINCIDENCE ou eee eee cece e cere eteeeeteaeeteseeeeaeeeeaeeeeaeeseaeeseaeeeseneeseaeeeeeeeeaaees 22 43 102 Phase detection iaeiei erea ee cae dnigg a ea ae eee aeaeaie 24 5 MAINTENANCE orcinec ne rea ear EREN KOE Eaa TEER O I EEE E E Ea 25 5 1 General INTOLMATON sssrinin nananana aaa a a aeaa raaa aaa P SAARA nainen 25 5 2 Battery replacemeNt ans reirante E EAE E aea EET E EOE e aa aR 25 53 CleaninQwe ihicenitnen nieces niece Aa EEA viii easier iiadeeiiebdl nti 25 6 TECHNICAL SPECIFICATIONS cccriaivaiesteceseitudadreteedemnitertdrocindaineha vauscaeetun ene eri eE Sa 26 6 1 CharacteriStiCS missssesarmiteini arana a aa aaa aa aaaea aa aeaa eiaa aAa 26 6 1 1 Safety stand ald evs cecincssecteleascectnnastenitiaeesene baci veua
36. or use in environments of pollution degree 2 e It can be used for CURRENT measurements on installations of over voltage category Ill up to 600V voltage between phase and earth and for VOLTAGE and FREQUENCY measurements on installations of over voltage category Ill up to 600V voltage between terminals and between phase and earth e Please use the standard safety precautions aimed at Protecting you against dangerous electric currents Protecting the instrument against incorrect operations EN 2 NY HT HT4020 HT4022 1 2 WARNING Only the leads supplied with the instrument guarantee compliance with the safety standards They must be in good condition and if necessary be replaced with identical leads Do not test circuits exceeding the current and voltage limits Do not perform any test under environmental conditions exceeding the limits indicated in paragraphs 6 2 1 Assure the batteries are installed correctly Before connecting the test leads to the circuit to be tested make sure that the rotary selector switch is set to the correct function Make sure that the LCD and rotary selector switch indicate the same function DURING USE Non compliance with warnings and or instructions may cause damage to the tester or its components or injure the operator Remove the clamp jaw from the conductor or circuit under test before changing the range When the tester is connected to the measuring circuits do
37. pears when the batteries are nearly discharged Replace them following the instructions in paragraph 5 2 3 3 CALIBRATION The tester complies with the accuracy specifications listed in this manual and such compliance is guaranteed for one year afterwards the tester may need recalibration 3 4 STORAGE In order to guarantee the accuracy of the measurements after a period of storage in extreme environmental conditions wait for the tester to stabilize to within the specified operating conditions see environments specifications paragraph 6 2 1 before use EN 5 ANYHT HT4020 HT4022 4 OPERATING INSTRUCTIONS 4 1 INSTRUMENT DESCRIPTION 4 1 1 Controls description LEGEND Inductive clamp jaw Safety guard D H 2 key Jaw trigger Rotary selector switch ENERGY key HT4020 ENERGY Ht key HT4022 FUNC key HT4020 FUNC HARM key HT4022 8 MAX MIN PK key HT4020 MAX MIN PK HJ key HT4022 9 LCD display 10 COM jack 11 V Q jack oS ee N Fig 1 Instrument description 4 1 2 Alignment marks Put the conductor within the jaws on intersection of the indicated marks as close as possible see Fig 2 in order to meet the meter accuracy specifications LEGEND 1 Alignment marks 2 Conductor Fig 2 Alignment marks EN 6 ANY HT HT4020 HT4022 4 1 3 Rubber cap use to hold test leads A rubber holster is provided with the instrument This standard accessory when fitte
38. re cyclically displayed To escape this function press and hold pressed MAX MIN PK key at least for 1 second or turn the selector to any position EN 10 ANY HT HT4020 HT4022 4 3 3 Measurement of voltage harmonics HT4022 only h e The maximum Voltage input is 600V Do not attempt to take any voltage WARNING measurements exceeding the limits indicated in this manual Exceeding the limits could cause electrical shock or damage to the instrument e Harmonic voltage measure is active for AC voltage on inputs only Fig 7 voltage harmonic analysis Select the V 3 position Press 3 FUNC key and keep it pressed at least 1 second until symbol THD is displayed Insert the red plug into V Q jack and the black plug into COM jack For ease of use attach the rubber test lead holster and insert a test lead see Fig 3 Connect the test leads to the circuit under test see Fig 6 The instrument displays the Total Harmonic Distortion value of the input signal The symbol THD is shown on the display See chapter 6 for the parameter s definition With the H and HV keys you can cycle through all available harmonic values from DC to the 25 order On the secondary display is shown the order of the harmonic whose percentage value is displayed on the main one ex H3 means third harmonic Press the 3 FUNC key to switch to the absolute harmonics values displaying from
39. sible to execute the phase rotation detection 11 After about one second MEASURING appears on the display indicating that the instrument is ready to execute the second measurement 12 Press the lt 3 FUNC key the MEASURING message will disappear WARNING If you Wait more than 10 seconds between the first lt FUNC key press and the second the instrument will display the SEC message and it s necessary to repeat all the measurements from the beginning Rotate the selector to any position to escape the function and restart at step 1 13 If the two tested phases follow the correct sequence the instrument displays 1 2 3 otherwise it displays 2 1 3 indicating an incorrect phase sequence WARNING e The detected voltage is NOT the phase to neutral voltage but the voltage between the conductor and the operator who is holding the instrument This value can be lower than the phase to neutral voltage DON T TOUCH THE PHASE CABLE IF YOU AREN T SURE THAT ANY VOLTAGE IS PRESENT e f the operator is insulated from the ground e g insulated floors shoes with rubber souls etc the instrument may not measure correctly We recommend repeating test at least twice due to verify the rightness of the obtained result EN 21 ANY HT HT4020 HT4022 4 3 10 1 Detection of phase coincidence The purpose of this measurement is to verify the correct phase between 2 conductors
40. surements 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 fixed installation e Measurement category Il is for measurements performed on circuits directly connected to the low voltage installation Examples are measurements on household appliances portable tools and similar equipment e Measurement category is for measurements performed on circuits not directly connected to MAINS Examples are measurements on circuits not derived from MAINS and specially protected internal MAINS derived circuits In the latter case transient stresses are variable for that reason the norm requires that the transient withstand capability of the equipment is made known to the user EN 4 iw HT4020 HT4022 2 GENERAL DESCRIPTION Thanks to a new development concept assuring double insulation as well as compliance with category III up to 600V you can rely on the utmost safety conditions See chapter 1 4 This instrument can perform the following measurements AC voltage Vac with TRMS conversion mode DC voltage Voo AC current lac with TRMS conversion mode Harmonic AC voltage from DC to 25 components HT4022 only Harmonic AC current from 1 to 25 components HT4022 only Frequency with input test leads Freque
41. teries Turn the rotary switch to the OFF position Disconnect the test leads from the jacks and any cable from the jaws Unscrew the battery cover screw and remove the cover Replace the batteries with two new AAA batteries Pay attention to the correct polarity Replace the battery cover and it s screw Use the appropriate battery disposal methods for your area 5 3 CLEANING To clean the instrument use a soft dry cloth Never use a wet cloth solvents or water etc EN 25 HT4020 HT4022 6 TECHNICAL SPECIFICATIONS This product conforms to the prescriptions of the European directive on low voltage 73 23 EEC LVD and to EMC directive 89 336 EEC amended by 93 68 EEC 6 1 CHARACTERISTICS Accuracy is indicated as of reading digit number It is referred to the following reference conditions 23 C 5 C with RH lt 75 DC Voltage Range Resolution Accuracy Input impedance 0 599 9V 0 1V 1 0 rdg 3 dgt 1MQ AC Voltage TRMS Accuracy Range Resolution 40 200Hz 200 400Hz Input impedance 1 6 599 9V 0 1V 1 0 rdg 3 dgt 5 0 rdg 3 dgt 1MQ Max Crest factor 1 41 MAX MIN AVG PEAK AC DC Voltage Function Range Resolution Accuracy Response time MAX MIN AVG 10 599 9V 0 1V 5 0 rdg 10 dgt 500ms PEAK 10 850V 1V 5 0 rdg 10 dgt ims AC Current TRMS Accuracy l Range Resolution 40 200H
42. th indication of energy measurement duration Press the ENERGY key to activate the energy measurement The counter is activated and the message MEASURING is showed on the bottom of the display Press again ENERGY key to stop the energy measurement the message MEASURING disappears from the display If the reading were difficult press D H key to hold the obtained value To escape this function press the D H key again 10 If the measurement was performed in dark environments press at least for 1 second the 8 key to activate the backlight that is automatically turned OFF after 5 seconds 11 Push the ENERGY key and keep it pressed at least 1 second to escape from the energy measurement EN 19 iw HT4020 HT4022 4 3 10 Detection of phase sequence WARNING AN The maximum Voltage input is 600V Do not attempt to take any voltage measurements exceeding the limits indicated in this manual Exceeding the limits could cause electrical shock or damage to the instrument N L1 Fig 14 phase rotation detection Fig 15 phase rotation detection with rubber cup _ Select the 9 position 2 Insert the red lead into V Q jack 3 The symbol 1PH will appear on the secondary display The instrument is ready to perform the first measurement 4 Connect the red terminal to the L1 phase conductor see Fig 14 1 measurement If necessary use the rubber test lead holster and insert t
43. z 200 400Hz Overload protection 0 0 399 9A 0 1A 1 0 rdg 3 dgt 5 0 rdg 5 dgt 600A RMS Max Crest factor 2 MAX MIN AVG PEAK AC Current Function Range Resolution Accuracy Response time MAX MIN AVG 1 0 399 9A 0 1A 5 0 rdg 10 dgt 500ms PEAK 10 800A 1A 5 0 rdg 10 dgt 15ms Resistance and Continuity test Range Resolution Accuracy Overload protection 0 0 499 90 0 10 500 9990 10 1 0 rdg 5 dgt 600V AC DC RMS 1000 19999 30 Instrument emits a buzzer for R lt 40Q Frequency with test leads with jaws Range Resolution Accuracy Overload protection 40 0 399 9Hz 0 1Hz 0 5 rdg 1 dgt 600V RMS 600A RMS Voltage range for frequency measure with test leads 0 5 600V with jaws 0 5 400V Voltage and current harmonics HT4022 only Harmonic order Resolution V A Accuracy 1 15 0 1 10 0 rdg 5 dgt 16 25 0 1 15 0 rdg 5 dgt Accuracy defined for voltage 1 6V current gt 2A Power factor Range Resolution Accuracy 0 20 1 00 0 01 3 Accuracy defined for sine wave voltage 230 400V current 22A freq 50 60Hz Active power Reactive power Apparent power Range kW kVAR kVA Resolution kW kVAR kVA Accuracy 0 00 99 99 0 01 100 0 999 9 0 1 3 5 rdg 3 dgt Accuracy defined for sine wave voltage 230 400V
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