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21.47 - ITM Instruments Inc.

1. 31 5 5 1 5 POM Chis UERSUM 31 5 5 1 6 isle M To a PEPERIT TTE EET 31 5 5 2 Measurement of AC 1P or AC 3P Powers ccccccccceeeeeceeeeeeeeeeeeeeeeeceeeeeeeeesaeeeeesnaeeeeeeneeeeseneeeees 32 5 5 2 1 Key 2 Par 2i ie citrate E ar steeds ERE RR Rd ur BAS EEEIRRR E Kus BR a E PAR MUR dus OR Ran e kPa E Rua Rae 32 5 5 2 2 ACDC POWET szisicescceed eaeegederedes 33 5 5 2 3 Iani E M 33 5 5 2 3 1 Key F4 Fnz in Power or Pf dPf measurement sssssseeeeee emere 33 5 5 2 4 AC DC Voltage and Cuneta caccccs creme eee 34 5 5 2 4 1 Key F4 Fnz in AC Voltage and Current measurement sssessseeee e 34 5 5 2 5 Voltage arrmomics D ea i 35 5 5 2 6 err neciadar nene RE 35 5 5 2 6 1 Key F4 Fnz in Voltage and Current Harmonics measurement sse 35 5 5 2 7 AG Eie e MERERI ELECTI QU LT TM EE 36 5 5 2 8 ge 36 5 5 2 9 Back light PET peel 36 5 6 Position W Log On Line Scope SnapShot MemorY Download ssssssss 37 DiGi RCV FS OS b Er 37 5 6 1 1 Start Log recordings Rr Puan ceed 37 5 6 1 2 ucc 38 5 6 1
2. J 15 5 3 1 2 ule 15 5 3 1 3 Baki it E 15 5 3 2 AC DC voltage and Voltage Harmonics measurement 16 5 3 2 1 K y F2 Paf C 16 5 3 2 2 AC DC VOA JE amaa nann nra aer ene ei Pea Aei eraai a Aaria epa eae ao an ani faeces 16 5 3 2 2 1 Key F4 Fnz in AC DC voltage measurement enne rennen 17 5 3 2 3 bereit TE SES 17 5 3 2 3 1 Key F4 Fnz in Voltage Harmonics measurement sssessseeeeeme emn 17 5 3 2 4 zl E 18 5 3 2 5 Backi oMi ERROR E DEDISSE 18 5 3 3 Checking phase sequence and phase concordance with a lead cccseecceeeeeeeeeeeeeeeeeeeeeeeeeeees 19 5 3 3 1 Verification of Phase Sequerice oci ci oett tette eo aa ERE Eg DEBER ro O Ede Mie x Esa i 19 5 3 3 2 Verification of Phase COncordance cccccccceceeeeeecee cece eeeeeeeaaeaeeeeeeesecaaeaeeeeeeeseceeaeeeeeeeseseeeaeeeeetees 21 5 4 Position A DC AC DC current measurement ssssseseeR eee mnn 23 5 4 1 DC current MeaSureMent cceceecceeeeeeeeeeeeeeeeceeeeeeaeeeeecaaeeeeceaeeeeseceeeceecaeeeeeeeeeeeeeaeeeseeeueeeeseneeees 23 5 4 1 1 gu rir c eee a eee ey ere ee re eer enerere eer 24 5 4 1 2 alalle MEERE ETE EE TEE E ET E A uct abaundusereecateabsen
3. 0 84 kvarih 0 00 kvarch 1P 19 01 17 00 00 mum 5 5 2 8 Hold Short pressing key H activates the function Data HOLD The display shows the message M and the screen of the measurement in progress is frozen This operating mode is deactivated when key H is pressed again or the switch is operated 5 5 2 9 Backlight Long pressing key H activates or deactivates the display backlight This function automatically deactivates after approximately 10 seconds after being activated in order not to discharge the batteries 1 800 561 8187 www GED com information itm com HT9022 5 6 POSITION W LOG ON LINE SCOPE SNAPSHOT MEMORY DOWNLOAD WARNING hand protection see Fig 3 The maximum DC or AC DC input voltage is 1000V and the maximum measurable DC or AC DC current is 1000A Do not measure voltages and A N currents exceeding the limits given in this manual could result in electrical shocks to the user and damage to the instrument We recommend holding the clamp respecting the safety area created by the Exceeding these limits Turn the rotary switch to W Insert the red cable into the input lead VO and the black cable into the input lead COM and connect the instrument as described in Fig 12 WARNING A N Insert the cable in the middle of the clamp jaws in order to obtain accurate measures Use the marks as a reference see Fig 2 5
4. 1 800 561 8187 www GE com information itm com NY e NHT HT9022 1 4 DEFINITION OF MEASUREMENT OVERVOLTAGE CATEGORY Standard CEI 61010 Safety requirements for electrical equipment for measurement control and laboratory use Part 1 General requirements defines what measurement category commonly called overvoltage category is In 6 7 4 Measured circuits circuits are divided into the following measurement categories OMISSIS 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 on installations inside buildings 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 fixed installation e Measurement category ll 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 I is for measurements performed on circuits not directly connected to MAINS Examples are measurements on circuits not derived from MAINS and specially pr
5. Par Sys Fnz DC The screen shows an example of DC Voltage and Current 80 0 V measurement 20 0 A 19 01 17 00 00 1 800 561 8187 www GED com information itm com wn HT9022 5 5 1 3 1 Key F4 Fnz in DC Voltage and Current measurement While measuring Voltage and Current press key F4 Fnz to Mod Par OK open the drop down menu shown on the screen to the side At DC each subsequent pressure of key F4 the cursor will scroll Min through the available items as follows 80 0 Cr e Max it constantly displays the maximum value of the cr measured parameter ADi MER e Min it constantly displays the minimum value of the Esc measured parameter e Cr it constantly displays the maximum positive crest value measured Cr it constantly displays the minimum negative crest value measured Zero it zeroes the measured DC current Rst it deletes all stored Max Min Cr and Cr values Esc it goes back to a normal measuring mode N WARNING Note carry out current zeroing before clamping the conductor 19 01 17 00 00 Mod Par Sys Fnz DC By pressing key F3 OK the selected item is confirmed 80 0 V To the side an example of measurement with active Max i function The display shows the active function 20 0 A 19 01 17 00 00 Ez 5 5 1 4 DC Energy The screen shows an example of DC Energy measurement Mod Par
6. e Make sure that the LCD display and the switch indicate the same function 1 2 DURING USE Please carefully read the following recommendations and instructions WARNING N Failure to comply with the Caution notes and or Instructions may damage the instrument and or its components or be a source of danger for the operator e Before activating the switch remove the conductor from the clamp jaw or disconnect the test leads from the circuit under test e When the instrument is connected to the circuit under test do not touch any unused terminal e Keep your hands always under the hand protection This protection is always located in a suitable position to guarantee a correct safety distance from possible exposed or live parts see Fig 3 hand protection e Avoid measuring resistance if external voltages are present Even if the instrument is protected excessive voltage could cause a malfunction of the clamp e During current measurement any other current near the clamp may affect measurement precision e When measuring current always put the conductor as near as possible to the middle of the clamp jaw to obtain the most accurate reading e While measuring if the value or the sign of the quantity being measured remain unchanged check if the HOLD function is enabled 1 3 AFTER USE e When measurement is complete switch OFF the instrument e If the instrument is not to be used for a long time remove the batteries
7. German Swedish Danish Norwegian French Dutch Portuguese Finnish and Polish OFF 19 01 17 00 00 D e Auto Off the auto power off of the clamp may be set to ON or OFF If set to ON the clamp will switch off after 5 minutes after it is last used 5 2 2 Date Time By selecting Date Time the screen to the side will appear Sel v A OK Press key F1 Sel to move the cursor and keys F2 F3 V A Year to change the selected item Month 01 Item Format allows selecting the date and time format between Dav i 19 EU European or USA American iret 17 Press key F4 OK to save the changes made and go back to Dl the previous screen see par 5 2 MP P Format EU 19 01 17 00 00 mm 1 800 561 8187 www GED com information itm com HT9022 1 800 561 8187 5 2 3 Log By selecting Log the screen to the side will appear Press keys F2 F3 W A to change the duration of the integration period It will take the following values 1 5 10 30 60 120 300 600 or 900 seconds Press key F4 OK to save the changes made and go back to the previous screen see par 5 2 5 2 4 InRush By selecting InRush the screen to the side will appear Press key F1 Sel to move the cursor and keys F2 F3 V A to change the selected item Press key F4 OK to save the changes made and go back to the previous screen see par 5 2 e Thresh threshold value beyond wh
8. Sys Fnz DC 2 20 kWh 19 01 17 00 00 5 5 1 5 Hold Short pressing key H activates the function Data HOLD The display shows the message El and the screen of the measurement in progress is frozen This operating mode is deactivated when key H is pressed again or the switch is operated 5 5 1 6 Backlight Long pressing key H activates or deactivates the display backlight This function automatically deactivates after approximately 10 seconds after being activated in order not to discharge the batteries 1 800 561 8187 www GED com information itm com IN HT HT9022 5 5 2 Measurement of AC 1P or AC 3P Powers Fig 12 measurement of AC 1P or AC 3P Powers Insert the red cable into the input lead VO and the black cable into the input lead COM and connect the instrument as described in Fig 12 5 5 2 1 Key F2 Par Press key F2 Par to open the drop down menu shown on the Mod Sys OK screen to the side At each subsequent pressure of key F2 the P Q S cursor will scroll through the available items as follows Pf dPf e P Q S it displays the measured values of Active Reactive 4Volt Curr and Apparent Power Voltage Har e Pf dPf it displays the measured values of Power Factor and Hae Energy Cosphi Esc e Voltage Harm it shows the measured Voltage Harmonics e Current Harm it shows the measured Current Harmonics 5755 05 mENE N Insert the cable in the middle o
9. or F3 f it is possible to move the cursor over the graph and to select the harmonic to be measured It is possible to measure up to the 25 harmonic for HO1 100 0 A fundamental frequencies between 10Hz and 75Hz and up to the Th d I 10 0 8 harmonic for fundamental frequencies between 75Hz and 400Hz 19 01 17 00 00 E 5 4 2 3 1 Key F4 Fnz in Current Harmonics measurement While measuring Current Harmonics press key F4 Fnz to Par OK open the drop down menu shown on the screen to the side At each subsequent pressure of key F4 the cursor will scroll Min through the available items as follows Abs e Max it constantly displays the maximum RMS value of the ks selected current harmonic HO1 10400 i e Min it constantly displays the minimum RMS value of the ThdI 10 4 selected current harmonic e Abs it displays the value of the harmonics in Amperes 19 01 17 00 00 E mmm e e e 1 800 561 8187 www MU IM com information itm com wn HT9022 e 96 it displays the value of the harmonics as percentage value with respect to the fundamental e Rst it deletes all stored Max and Min values e Esc it goes back to a normal measuring mode Note since the menu contains functions with a different meaning Max Min and Abs it is necessary to enter the menu twice once for displaying Abs or values and another time to enable the Max or Min functions 4 Par Fnz By pressing key F3 OK the selected item is
10. press key F4 lt Par OK Fnz to open the drop down menu shown on the screen to the side At each subsequent pressure of key F4 the cursor will Min scroll through the available items as follows Abs e Max it constantly displays the maximum RMS value of the selected current or voltage harmonic HO1 100 q i e Min it constantly displays the minimum RMS value of the ThdI 10 0 selected current or voltage harmonic e a displays the value of the harmonics in Amperes or 19 01 17 00 00 NEM e 96 it displays the value of the harmonics as percentage value with respect to the fundamental e Rst it deletes all stored Max and Min values e Esc it goes back to a normal measuring mode Note since the menu contains functions with a different meaning Max Min and Abs it is necessary to enter the menu twice once for displaying Abs or values and another time to enable the Max or Min functions lt Par gt Fnz By pressing key F3 OK the selected item is confirmed To the side an example of measurement with active Max function The display shows the active function HO1 100 0 A ThdI 10 0 5 M a x 19 01 17 00 00 1 800 561 8187 www GED com information itm com wn HT9022 5 5 2 7 AC Energy The screen shows an example of AC Energy measurement Mod Par Sys Fnz The values of Active Energy Reactive Energy Inductive Energy AC 50 0 Hz and Capacitive Reactive Energy are shown 2 24
11. 3 s M 39 5 6 1 4 Snapo hotes e EP RN 39 5 6 1 5 Bro alor o ET 40 5 7 Position a Resistance and continuity measurement sss eme 41 N M C dcr dara c c 42 5 7 1 1 jojo MT HH 42 5 7 1 2 Backlight E e ERE ES 42 5 8 Position InRush A inrush current measurement cccccecececeteeeeecsneeeeecseeeesceeeeeessseeseesaes 43 99 1 Virt al key Zero 44 SE AES CS RUM E E aeceee ds 44 58 3 Key F4 Menn A 44 6 MAINTENANCE wissscesdcccscceadsaava stasis cosessnasnteacstedeadseasencactpadachatuds aeaa a aaiae EEn 46 6 1 General informatio sserleecsleas Geaderloacainesstsiacusondactaglaceaeesetaasea does seede sngiee doce vias EAR XR e AER een LEN E er a 46 6 2 Battery replacement 2 2 n au cet ctia hades iesisies a SUR EE Le REBEL Xue EE Deere RE dee aa LERRA 46 6 3 Cleaning the Instrument uccide acea cepa de EEEE 46 6 4 mie 46 7 TECHNICAL SPECIFICATIONS ccccccccssseseccececescaeeeeeeceeceseecaeseaeesceeeeeesseseaeeeceeeeeessesaaaees 47 7 1 Technical characteristics er nette rete rh ee Fe cede PUENTE EE E AEAT RERNE 47 1 1 1 Safety standards tei eet tere lowes etg ve ge aeaa e aaa daer aara a eda oaaae aai 49 7 1 2 G
12. 6 1 Key F3 Sys While measuring DC AC 1P or AC 3P Power press key F3 Sys to open the drop down menu shown on the screen to the side At each subsequent pressure of key F3 the cursor will scroll through the available items as follows e Start Log it starts a recording of the electrical mains parameters e On line it starts a Bluetooth On Line Scope e Memory it shows the list of the saved data e SnapShot it carries out an instant saving of the measured parameters Mod Par OK AC Eja Online 21 Memory 7 SnapShot 22 Download Esc 19 01 17 00 00 e Download it sets to the mode for downloading the data saved in the memory e Esc it closes the drop down menu By pressing key F4 OK the selected item is confirmed The electrical parameters recorded during a Recording transmitted during an On Line Scope or saved in a SnapShot according to the mode set are the following e AC 1P AC 1P P Q S pF dPf V I THDV THDI hVO01 hVxx xx 25 for fundamental frequency 10 75Hz xx 8 for fundamental frequency 75 400Hz e AC 3P P Q S pF dPf V I THDV THDI hVO1 hVxx xx 25 for fundamental frequency 10 75Hz xx 8 for fundamental frequency 75 400Hz e DC P V I 5 6 1 1 Start Log recording Upon confirming the Start Log item the instrument sets to stand by and waits for a recording to start A recording shall be started when reaching the following
13. 65Hz Voltage gt 10V Current gt 5A Pf gt 0 5 Reactive Power Range KVAR Resolution KVAR Uncertainty 0 00 99 99 0 01 o 100 0 999 9 0 1 Ae agaa Uncertainty defined for sine wave 10 65Hz Voltage gt 10V Current gt 2A 0 992 gt Pf gt 0 5 Range kVAR Resolution kVAR Uncertainty 0 00 99 99 0 01 o 100 0 999 9 0 1 AAVA Uncertainty defined for sine waveform gt 65Hz Voltage gt 10V Current gt 5A 0 992 gt Pf gt 0 5 Reactive Energy Range kVARh Resolution kVARh Uncertainty 0 00 99 99 0 01 o 100 0 999 9 0 1 To Ug edgy Uncertainty defined for sine wave 10 65Hz Voltage gt 10V Current gt 2A 0 992 gt Pf gt 0 5 Range KVARh Resolution KVARh Uncertainty 0 00 99 99 0 01 o 100 0 999 9 0 1 E eg oad Uncertainty defined for sine waveform gt 65Hz Voltage gt 10V Current gt 5A 0 992 gt Pf gt 0 5 Power factor Range Resolution Uncertainty 0 20 1 00 0 01 3 Uncertainty defined for sine waveform 10 65Hz Voltage gt 10V Current gt 2A Uncertainty defined for sine waveform gt 65Hz Voltage gt 10V Current gt 5A Voltage and Current harmonics Harmonic order Frequency Hz Resolution V A Uncertainty 1 25 10 75 126 75 400 0 1 5 0 rdg 5dgt Phase sequence and 1 lead phase coincidence Range Input impedance 100 1000V 1 3MO Frequency range 40 70Hz Measurement carried out under the following standard conditions ins
14. ACrms x 60s Frequency with test leads with jaws Protection against Range Resolution Uncertainty overcharge 10 0 99 9Hz 0 1Hz 1000VDC ACrms 100 400Hz 1Hz 1 0 rdg Sdgt 2000ADC ACrms Voltage range for frequency measure 0 5 1000V Current range for frequency measure with jaws 0 5 1000A DC power Range kW Resolution kW Uncertainty 0 00 99 99 0 01 100 0 999 9 0 1 A S Perg Fog IM Uncertainty defined for Voltage gt 10V Current 2A Active Power Apparent power Range kW kVA Resolution kW kVA 0 00 99 99 0 01 100 0 999 9 0 1 Uncertainty defined for sine waveform 10 65Hz Voltage gt 10V Current gt 2A Pf gt 0 5 Uncertaint 2 0 rdg 3dgt 1 800 561 8187 www GED com information itm com HT9022 Range kW kVA Resolution kW kVA Uncertainty 0 00 99 99 0 01 100 0 999 9 0 1 H9 Ogag Uncertainty defined for sine waveform gt 65Hz Voltage gt 10V Current gt 5A Pf gt 0 5 Active Energy Range KWh Resolution KWh Uncertainty 0 00 99 99 0 01 100 0 999 9 0 1 HABA SAU Uncertainty defined for sine wave 10 65Hz Voltage gt 10V Current gt 2A Pf 0 5 Range kWh Resolution kWh Uncertainty 0 00 99 99 0 01 o 100 0 999 9 0 1 HEISE Matas Uncertainty defined for sine waveform gt
15. F4 Esc goes back to the parameter measuring Screen 5 6 1 2 On line Upon confirming the On line item the instrument sets to Bluetooth transmission mode the display shows the message Onl Keys F2 Par and F4 Fnz are active which give the possibility of displaying the parameters or enabling the functions seen in the previous paragraphs Mod Par Sys Fnz AC 50 0 Hz 21 47 kW 7 68 kvari 22 90 kVA 1P 19 01 17 01 00 Mod OK AC Info 21 Esc 7 22 90 kVA 19 01 17 01 00 i Esc Start 19 01 17 01 00 Int Period 1 N Periods 00025 Auton 00d 02h 19 01 17 01 25 Mod Par Sys Fnz AC 50 0 Hz 21 47 kW 7 68 kvari 22 90 kVA LP 19 01 17 00 35 mum When an on line transmission is in progress if the selector switch of the clamp is moved to any other position the transmission shall be interrupted m www GEE com information itm com 1 800 561 8187 HT9022 Mod Par OK During a Bluetooh transmission press key F3 Sys to open the AC a drop down menu shown in the screen to the side At each Esc subsequent pressure of key F3 the cursor will scroll through the 21 available items as follows 7 68 kvari e Stop it stops the transmission in progress 22 90 kVA e Esc it closes the drop down menu By pressing key F4 OK the selected item is confirmed 19 01 17 01 00 5 6 1 3
16. Memory Upon confirming the Memory item the instrument shows the screen here to the side The screen lists the recordings L with starting date and time and SnapShots S with saving date and time The residual memory autonomy is shown expressed in days d hours h according to the integration period set see par 5 2 3 v Del ok Esc 01 01 01 10 41 02 01 01 10 41 L03 01 01 10 45 04 02 01 12 05 L05 02 01 14 00 Auton 00d 02h 19 01 17 00 35 Each page lists 5 memory locations by pressing key F1 VW it is possible to scroll through the following pages Press key F2 Can to open the drop down menu shown on the screen to the side At each subsequent pressure of key F2 the cursor will scroll through the available items as follows e Del Tot it deletes all Recordings L and Snapshots S saved in the memory e Del Last it deletes the last information saved in the memory When pressing key F3 OK once the display shows the message MAAE pressing key F3 again confirms the selected item v Del OK Esc sox q Eea 8 Saget eer ecd 5 L03 01 01 10 45 00 804 02 01 12 05 11 L05 02 01 14 00 00 Auton 00d 02h Delete 19 01 17 00 35 By pressing key F4 Esc once the selected item is not confirmed Pressing key F4 again goes back to the parameter measuring screen 5 6 1 4 SnapShot Upon confirming the SnapShot item the instrument
17. RMS value CF G RMS This value changes with the signal waveform for a purely sinusoidal wave it is 42 21 41 In case of distortion the Crest Factor takes higher values as wave distortion increases 2 3 HARMONICS See Appendix Par 9 4 1 800 561 8187 www GED com information itm com IN HTI HT9022 3 PREPARATION FOR USE 3 1 INITIAL CHECKS Before shipping the instrument has been checked from an electric as well as mechanical point of view All possible precautions have been taken so that the instrument is delivered undamaged However we recommend generally checking the instrument in order to detect possible damage suffered during transport In case anomalies are found immediately contact the forwarding agent We also recommend checking that the packaging contains all components indicated in paragraph 7 3 In case of discrepancy please contact the Dealer In case the instrument should be replaced please carefully follow the instructions given in chapter 8 2 3 2 INSTRUMENT POWER SUPPLY The instrument is supplied by two 1 5V LRO3 AAA UM 4 batteries Battery charge duration is approximately 54 hours of continuous use in Power mode selector switch to W Replace them following the instructions in paragraph 5 2 3 3 CALIBRATION The instrument has the technical specifications described in this manual The instrument s performance is guaranteed for one year 3 4 STORAGE In order to guarantee prec
18. com information itm com IN HTI HT9022 1 1 PRELIMINARY INSTRUCTIONS e This clamp has been designed for use in environments of pollution degree 2 e t can be used for CURRENT and VOLTAGE measurements on installations with measurement category CAT IV 600V and CAT lll 1000V For a definition of measurement categories see S 1 4 e We recommend following the normal safety rules devised by the procedures for carrying out operations on live systems and using the prescribed PPE to protect the user against dangerous currents and the instrument against incorrect use e Only the leads supplied with the instrument guarantee compliance with the safety standards They must be in good conditions and replaced with identical models when necessary e Incase the lack of warning against the presence of voltage may constitute a danger for the operator 1 always carry out a continuity measurement before carrying out the measurement of the live system to confirm the correct connection and condition of the leads 2 before carrying out the critical measurement carry out a measurement at a power socket where voltage is surely present As an alternative make this verification at your site before going to the unknown measuring point e Do nottest circuits exceeding the specified current and voltage limits e Check that the battery is correctly inserted e Before connecting the test leads to the circuit to be tested make sure that the switch is correctly set
19. confirmed To the side an example of measurement with active Max function The display shows the active function H01 100 0 A ThdI 10 0 amp M a x 19 01 17 00 00 zz 5 4 2 4 Hold Short pressing key H activates the function Data HOLD The display shows the message E and the screen of the measurement in progress is frozen This operating mode is deactivated when key H is pressed again or the switch is operated 5 4 2 5 Backlight Long pressing key H activates or deactivates the display backlight This function automatically deactivates after approximately 10 seconds after being activated in order not to discharge the batteries 1 800 561 8187 www GED com information itm com NY e D HT9022 5 5 POSITION W DC AC DC POWER MEASUREMENT WARNING The maximum DC or AC DC input voltage is 1000V and the maximum i measurable DC or AC DC current is 1000A Do not measure voltages and currents exceeding the limits given in this manual Exceeding these limits could result in electrical shocks to the user and damage to the instrument We recommend holding the clamp respecting the safety area created by the hand protection see Fig 3 Mod Par Sys Fnz AC lt 10 0 Hz Ed kW By positioning the selector switch to W the screen to the side will appear E 1P 19 01 17 00 00 g Press key F1 Mod to open the drop down menu shown o
20. in the instruction manual The content of this manual cannot be reproduced in any form without the manufacturer s authorization Our products are patented and our trademarks are registered The manufacturer reserves the right to make changes in the specifications and prices if this is due to improvements in technology 8 2 SERVICE If the instrument does not operate properly before contacting the After sales Service please check the conditions of batteries and cables and replace them if necessary Should the instrument still operate improperly check that the product is operated according to the instructions given in this manual Should the instrument be returned to the After sales Service or to a Dealer transport will be at the Customer s charge However shipment will be agreed in advance A report will always be enclosed to a shipment stating the reasons for the product s return Only use original packaging for shipment any damage due to the use of non original packaging material will be charged to the Customer 1 800 561 8187 www ELIT com information itm com wn HT9022 9 APPENDIX THEORETICAL OUTLINE 9 1 CALCULATION OF POWERS IN AC 1P MODE The instrument measures the values of Rms Voltage and Rms Current and calculates the average Power values for each period The formulas for power calculation are 1 N P x v xi N 2 i i S ly luy N i 1 N i 1 i Q 52 _ p P Pf I where
21. instantly saves the measured parameters and shows the message Mem Ok on the display for 1 second to confirm that saving has been carried out m www GEE com Mod Par Sys Fnz AC 50 0 Hz 21 47 kW 7 68 kvari 22 90 kVA Mem Ok 1P 19 01 17 00 35 information itm com Ng HT9022 5 6 1 5 Download Esc Upon confirming the Download item the instrument sets to the mode for downloading the data saved in the memory and shows the screen to the side Download Pressing key F4 Esc goes back to the parameter measuring screen 19 01 17 00 35 z 1 800 561 8187 www GED com information itm com HT9022 5 7 POSITION Q RESISTANCE AND CONTINUITY MEASUREMENT WARNING Before attempting any resistance measurement remove power from the circuit under test and discharge all capacitors if present By positioning the selector switch to Q the screen to the side will appear Fig 13 resistance measurement Mod OK Fnz gt 60 0 kQ 19 01 17 00 00 END Insert the red cable into the input lead VQ and the black cable into the input lead COM and connect the instrument as described in Fig 13 Press key F1 Mod to open the drop down menu shown on the screen to the side At each subsequent pressure of key F1 the cursor will scroll through the available items as follows e Resistance resistance measurement e Co
22. measurement Insert the red cable into the input lead VQ and the black cable into the input lead COM and position the leads to the desired points of the circuit being tested Fig 6 The voltage and frequency value is shown on the display 5 3 2 1 Key F2 Par Press key F2 Par to open the drop down menu shown on the Mod OK screen to the side At each subsequent pressure of key F2 the Voltage cursor will scroll through the available items as follows e Voltage it shows the measured Voltage value Esc e Voltage Har it shows the measured Voltage harmonics 220 5 V e Esc it closes the drop down menu Select the desired parameter and press key F4 OK to confirm 19 01 17 00 00 5 3 2 2 AC DC voltage Mod Par Fnz AC 50 0 Hz The screen shows an example of AC DC Voltage measurement 220 5 V 19 01 17 00 00 mum 1 800 561 8187 www GED com information itm com wn HT9022 5 3 2 2 1 Key F4 Fnz in AC DC voltage measurement While measuring AC DC voltage press key F4 Fnz to open the drop down menu shown on the screen to the side At each subsequent pressure of key F4 the cursor will scroll through the available items as follows e Max it constantly displays the maximum RMS value of Voltage e Min it constantly displays the minimum RMS value of Voltage 220 5 19 01 17 00 00 Sg Cr it constantly displays the maximum p
23. menu 19 01 17 00 00 MEE Select the desired mode and press key F4 OK to confirm 5 4 1 DC current measurement Fig 9 DC current measurement LO LLLLLLLLLLLLWARNNG A Insert the cable in the middle of the clamp jaws P order to obtain accurate measures Use the marks as a reference see Fig 1 800 561 8187 www GE com information itm com IN HTI HT9022 Mod Par Fnz DC The screen shows an example of DC current measurement 100 0 A 19 01 17 00 00 M 5 4 1 1 Key F4 Fnz Mod Par OK HW Press key F4 Fnz to open the drop down menu shown on the Dc screen to the side At each subsequent pressure of key F4 the Min cursor will scroll through the available items as follows Cr e Max it constantly displays the maximum value of DC current 100 0 Cr e Min it constantly displays the minimum selected value of DC Zero current as e Cr it constantly displays the maximum positive crest value 19 01 17 00 00 NEED Cr it constantly displays the minimum negative crest value Zero it zeroes the measured DC current Rst it deletes all stored Max Min Cr and Cr values Esc it goes back to a normal measuring mode WARNING Note N e carry out current zeroing before clamping the conductor e the measurement of the 4 Max Min Cr and Cr values is simultaneous regardless of the one displayed Mod Par Fnz DC B
24. minute as indicated by the instrument s time The message Wait is displayed Mod Par Sys Fnz AC 50 0 Hz 21 47 kW 7 68 kvari 22 90 kVA 1P 19 01 17 00 35 1 800 561 8187 www GED com information itm com HT9022 1 800 561 8187 WARNING AN will find the values stored up to that moment When a recording is in progress if the selector switch of the clamp is moved to any other position the recording shall be interrupted In the memory you While recording the display shows the message Log and keys F2 Par and F4 Fnz are active which give the possibility of displaying the parameters or enabling the functions seen in the previous paragraphs While recording press key F3 Sys to open the drop down menu shown in the screen to the side At each subsequent pressure of key F3 the cursor will scroll through the available items as follows e Stop Log it stops the recording in progress e Info it shows some information about the recording in progress e Esc it closes the drop down menu By pressing key F4 OK the selected item is confirmed On the right an example of the screen which is displayed when the item Info is selected It shows e Start starting date and time of recording e Int Period the integration period set see par 5 2 3 e N Periods number of periods recorded e Auton memory autonomy expressed in days hours Pressing key
25. s hand HT9022 Mele Par Ok lt 10 0 Hz Press key F1 Mod to open the drop down menu shown on the PE screen to the side At each subsequent pressure of key F1 PH sed Mod the cursor will scroll through the available items Select Ph Seq and press key F4 OK to confirm the selected item 19 01 17 00 00 5 3 3 1 Verification of Phase Sequence wee rom L2 a 3 Fig 7 verification of phase sequence Mod Go Ph Seq 1 The instrument shows the screen here to the side and waits for the detection of phase L1 2 Insert the red cable into input terminal VQ and connect the PH1 red lead to phase L1 Fig 7 19 01 17 00 00 1 800 561 8187 www GED com information itm com iN HTH HT9022 WARNING N If the frequency of the measured voltage is lower than 40Hz or higher than 70Hz the display shows the message mitia or m a and phase detection does not start Mod Go Ph Seq 3 When a voltage higher than or equal to 100V is detected the instrument gives an acoustic signal buzzer and the message Gry is shown on the display Do not press any PHI key and keep the test lead connected to L1 phase cable 19 01 17 00 00 EN Mod Go Ph Seq 4 Once phase L1 acquisition is complete the displays shows the screen here to the side Disconnect the test lead from Discon phase L
26. version in case it should be necessary to contact the Service Department After a few seconds the instrument switches to the selected function 1 800 561 8187 www GED com information itm com NY e WHT HT9022 5 INSTRUMENT FUNCTIONS 5 1 PHASE DETECTION With the selector switch set to V Voltage measurement or A Current measurement by taking the end of the clamp jaw near an AC source the red LED at the base of the clamp jaw will turn on see Fig 1 part 2 which indicates that current is present WARNING Phase detection is not active when the clamp selector switch is set to OFF SETTINGS W Q InRush A 5 2 SETTINGS POSITION INSTRUMENT SETTINGS By positioning the selector switch to Settings the screen aside Y A OK will appear containing the possible settings of the instrument Press keys F2 F3 V A to move the cursor and key F4 OK to confirm the selected item Date Time Log InRush Continuity 19 01 17 00 00 nm 5 2 1 General By selecting General the screen to the side will appear Sel v A OK Press key F1 Sel to move the cursor and keys F2 F3 V A to change the selected item Language Press key F4 OK to save the changes made and go back to the previous screen see par 5 2 Auto Off Language the language of the clamp may be chosen among Italian English Spanish
27. 00 00 MEN 1 800 561 8187 www GED com information itm com NY e D HT9022 e it displays the value of the harmonics as percentage value with respect to the fundamental e Rst it deletes all stored Max Min values e Esc it goes back to a normal measuring mode Note since the menu contains functions with a different meaning Max Min and Abs it is necessary to enter the menu twice once for displaying Abs or values and another time to enable the Max or Min functions 4 Par Fnz By pressing key F3 OK the selected item is confirmed To the side an example of measurement with active Max function The display shows the active function H01 215 0 V Thdv 10 0 amp M a x 19 01 17 00 00 ENS 5 3 2 4 Hold Short pressing key H activates the function Data HOLD The display shows the message E and the screen of the measurement in progress is frozen This operating mode is deactivated when key H is pressed again or the switch is operated 5 3 2 5 Backlight Long pressing key H activates or deactivates the display backlight This function automatically deactivates after approximately 10 seconds after being activated in order not to discharge the batteries 1 800 561 8187 www GED com information itm com 5 3 3 Checking phase sequence and phase concordance with a lead A _ _ _ NENNEN While measuring the instrument must be held in the operator
28. 01 17 05 00 mz 1 800 561 8187 www GED com information itm com Nu HT9022 By pressing key F4 Esc once the selected item is not confirmed Pressing key F4 again takes you back to the Inrush Current measuring screen Pressing key F3 OK shows the trend of inrush current relevant 22701 16 30 47 to the selected memory location It shows starting date time of the recorded event maximum current value reached during the event number of the event relevant to the measuring campaign measuring modes set relevant to the measuring campaign the number of the selected location v Can OK Esc 19A 1 10 Fix 15A 1 1 Irc03 25 01 17 05 00 By pressing key F1 it is possible to display the other events relevant to the selected campaign Pressing key F4 Esc goes back to the list of the Inrush Currents saved in the memory see par 5 8 3 1 800 561 8187 www GED com information itm com wn HT9022 6 MAINTENANCE 6 1 GENERAL INFORMATION 1 The instrument you purchased is a precision instrument While using and storing the instrument carefully observe the recommendations listed in this manual in order to prevent possible damage or danger during use 2 Do not use the instrument in environments with high humidity levels or high temperatures Do not expose to direct sunlight 3 Always switch off the instrument after use In case the instrument is not to be used for a long time remove
29. 1 cable 19 01 17 00 00 mum Mod Go Ph Seq 5 The instrument shows the screen here to the side and waits for the detection of phase L2 PH2 Connect the test lead to phase L2 cable 19 01 17 00 00 WARNING If more than 3 seconds elapse before detecting phase L2 the instrument N displays the message It is necessary to repeat the measuring cycle from the beginning by pressing key F4 Go and starting from step 1 again Mod Go Ph Seq 6 When a voltage higher than or equal to 100V is detected the instrument gives an acoustic signal buzzer and the message EER is shown on the display Do not press any PH2 key and keep the test lead connected to L2 phase cable 19 01 17 00 00 END 1 800 561 8187 www GED com information itm com NM HT HT9022 7 If the two phases to which the test lead has been connected Sea are in the correct sequence the instrument displays the screen here to the side Should the phase sequence be incorrect the display shows 132 To start a new measurement press key F4 Go 5 3 3 2 Verification of Phase Concordance 1 The instrument shows the screen here to the side and waits a 3 eee 2 eee L 19 01 17 00 00 mm a L3 a 2 eee L Fig 8 verification of Phase Concordance for the detection of phase L1 2 Insert the red cable into input termin
30. ENGLISH User manual gu 1 800 561 8187 www GED com information itm com CC 1 800 561 8187 www GED com information itm com wn HT9022 Table of contents 1 PRECAUTIONS AND SAFETY MEASURES esses nnne eene nnnena innen ntis ansa a ann nnn nnns 3 1 1 Preliminary Instructions ii caeci anoo aat eroe OE ee BUR en EAR ee exea R e ela Enea 4 1 2 DUMING USC Dm 4 1 3 DAC PE 4 1 4 Definition of measurement overvoltage category sssssssseee eem een 5 2 GENERAL DESCRIPTION seccveccssevceieccseverci ces entere tee ted ere Past ecr ea cha Pon eee ceret do een ae vead tke dev ida eda 6 2 1 Measuring average values and TRMS values sesse eee emen eene 7 2 2 Definition of true root mean square value and crest factor sesssssssssssssseseses 7 2 3 asc 7 3 PREPARATION FOR USE Beide in ecl tenere lid be Aad Nee d TE ue 8 3 1 Initial CHECKS 2 aici Eaa 8 3 2 Instrument power supply cccecceeceeeeeeceeeeeeeceeeaeaeceeeeeeaceaaanaeceeeeesadeaaaeaeeeeeeesescenanaeeeeeeessneaeeeeees 8 3 3 ieclecum H 8 3 4 jt ere rrre 8 4 OPERATING INSTRUCTIONS esesssesssssesesennn nnne nsnsnnnna nnn nens sisse nasa sins inania ana asas nnns 9 4 1 Instrument description ecol rtee e anaa ya anne nena eR aun n eE i ag e ene a Rana Cus an
31. FETY MEASURES The instrument has been designed in compliance with directive IEC EN61010 1 relevant to electronic measuring instruments For your safety and in order to prevent damaging the instrument please carefully follow the procedures described in this manual and read all notes preceded by the symbol with the utmost attention Before and after carrying out the measurements carefully observe the following instructions e Do not carry out any voltage or current measurement in humid environments e Do not carry out any measurements in case gas explosive materials or flammables are present or in dusty environments e Avoid contact with the circuit being measured if no measurements are being carried out e Avoid contact with exposed metal parts with unused measuring probes circuits etc e Do not carry out any measurement in case you find anomalies in the instrument such as deformation breaks substance leaks absence of display on the screen etc e Pay special attention when measuring voltages higher than 20V since a risk of electrical shock exists In this manual and on the instrument the following symbols are used Warning observe the instructions given in this manual an improper use could damage the instrument or its components AN High voltage danger electrical shock hazard L1 Double insulated meter 9 AC voltage or current ae DC voltage or current as Connection to earth 1 800 561 8187 www GED
32. N number of samples in the period 9 2 CALCULATION OF POWERS IN AC 3P MODE The instrument measures the values of Rms Voltage and Rms Current and calculates the average Power values for each period The formulas for power calculation are N Q2 B Lx Sy xi N N S 43x px Sy x N i l P 48 0 P Pf Tas where N number of samples in the period 9 3 CALCULATION OF POWERS IN DC MODE The instrument measures the values of Avg Voltage and Avg Current and calculates the average Power value for each period The formula for power calculation is 1 L 1 Ps e 1 800 561 8187 www ELIT com information itm com wy HT9022 9 4 VOLTAGE AND CURRENT HARMONICS Any periodic non sinusoidal wave may be represented by a sum of sinusoidal waves each with a frequency which is a whole multiple of the fundamental according to the relationship V t V gt V sin ot 9 4 k 1 where Vo Average value of v t V1 Amplitude of the fundamental of v t Vy Amplitude of the k nth harmonic of v t CAPTION 1 Fundamental 2 Third Harmonic 3 Distorted waveform sum of two previous components VV Effect of the sum of 2 multiple frequencies For network voltage the fundamental has a frequency of 50 Hz the second harmonic has a frequency of 100 Hz the third harmonic has a frequency of 150 Hz and so on Harmonic distortion is a continuous problem and must not be confused w
33. U U A 19 01 17 00 00 mum 5 4 2 2 AC DC current Mod Par Fnz AC 50 0 Hz The screen shows an example of AC DC current measurement 100 0 A 19 01 17 00 00 mum 1 800 561 8187 www GED com information itm com HT9022 5 4 2 2 1 Key F4 Fnz in AC DC current measurement While measuring Current press key F4 Fnz to open the drop down menu shown on the screen to the side At each subsequent pressure of key F4 the cursor will scroll through the available items as follows e Max it constantly displays the maximum RMS value of current e Min it constantly displays the minimum RMS value of current Cr it constantly displays the maximum positive crest value Cr it constantly displays the minimum negative crest value Zero it zeroes the average value of the measured current Rst it deletes all stored Max Min Cr and Cr values Esc it goes back to a normal measuring mode 19 01 17 00 00 WARNING AN Note carry out current zeroing before clamping the conductor Mod Par Fnz AC 50 0 Hz By pressing key F3 OK the selected item is confirmed To the side an example of measurement with active Max 100 0 A function The display shows the active function 19 01 17 00 00 EE 5 4 2 3 Current harmonics The screen shows an example of Current Harmonics Par b Fre measurement By pressing keys F1 lt
34. al VQ and connect the red lead to phase L1 of the first sequence Fig 8 1 800 561 8187 m www GEE com Mod Go Ph Seq PH1 19 01 17 00 00 information itm com 1 800 561 8187 3 When a voltage higher than or equal to 100V is detected the instrument gives an acoustic signal buzzer and the message INE is shown on the display Do not press any key and keep the test lead connected to L1 phase cable Once phase L1 acquisition is complete the displays shows the screen here to the side Disconnect the test lead from phase L1 cable The instrument shows the screen here to the side and waits for the detection of the second sequence of phase L1 Connect the test lead to phase L1 of the second sequence WARNING HT9022 Mod Go Ph Seq PHI 19 01 17 00 00 Mod Go Ph Seq Discon 19 01 17 00 00 az Mod Go Ph Seq PH2 19 01 17 00 00 mum 6 When a voltage higher than or equal to 100V is detected the instrument gives an acoustic signal buzzer and the message Meas is shown on the display Do not press any key and keep the test lead connected to L1 phase cable of the second sequence If there is concordance between the two phases to which the test lead has been connected the instrument displays the screen here to the side Otherwise it displays 123 or 132 To start a new measurement
35. ature Operating temperature Allowable relative humidity Storage temperature Storage humidity 23 5 C 0 40 C lt 80 10 60 C lt 70 This instrument satisfies the requirements of Low Voltage Directive 2006 95 EEC LVD and of EMC Directive 2004 108 EEC 1 800 561 8187 3 ACCESSORIES PROVIDED 7 e Instrument e Pair of test leads e Pair of alligator clips e 1809000 calibration certificate e User manual e Bag e Batteries m www GEE com information itm com wn HT9022 8 SERVICE 8 1 WARRANTY CONDITIONS This instrument is warranted against any material or manufacturing defect in compliance with the general sales conditions During the warranty period defective parts may be replaced However the manufacturer reserves the right to repair or replace the product The warranty shall not apply in the following cases e Repair and or replacement of accessories and batteries not covered by warranty e Repairs that may become necessary as a consequence of an incorrect use of the instrument or due to its use together with non compatible appliances e Repairs that may become necessary as a consequence of improper packaging e Repairs which may become necessary as a consequence of interventions performed by unauthorized personnel e Modifications to the instrument performed without the manufacturer s explicit authorization e Use not provided for in the instrument s specifications or
36. b a Cue Ane Ce AERE Ra en 9 AAA Description of the controls ierit ecol Fei Clo i L bed e Ee Hoe Le Loss Hd e e det rea Duda 9 4 1 2 Alignment Marks asasinarii apia eai iaip ai iep iai Ei a eeN EE EEE 9 41 3 Hand Protech OMe ERR 10 4 1 4 Indication of the conventional direction of Current ccccccceeeeeceeeeeeceeeeeeeeeceeeeeeeeeeeeeeeeseeeeetenaees 10 4 2 Description of the Keys ener hee ette edenda dete eee ae ee eben 10 ADA KeysF1 F2 F3 F4 iiec ibt dex te Here ge Rai REI ote Era aO ESL DOS E EO BERE Cu do he e Ec cs 10 422 ROY e 10 Faa Ky NERONI 10 4 3 DIETE M 11 5 INSTRUMENT FUNCTIONSG cccccccceccsssssseceeeececeaeaeesecceceesesaeseaeceeeeseseesaaseceseesessasaaaees 12 5 1 Phase GEL CION ep E 12 5 2 Settings position Instrument settings enne 12 52 General T 12 GS NEBBIVARIN nz watidse sdencysdedssaueded natyotude saeco es 12 52393 JOgx ost ecce dM IM M M Mt eee 13 HI MEN C M 13 5 2 5 Cro H 13 5 3 Position V DC AC DC voltage measurement and phase sequence verification 14 5 3 1 DC voltage MeaSUreMent cccceceecceceeecceeeeeeeeeeeeeaeeeeecaceeeeeeaeeeeseaeecececeeeeseceeeeeseaeeeeeseueeeeseneeees 14 5 3 1 1 Key Fa Id
37. body effect this means that for cables with many wires the internal wires have higher impedance than the external wires As a consequence current which normally distributes along the external surface of the wire produces over heating of the conductor a premature degrading of the cable s insulation an increase in line voltage drop Neutral Triple harmonics odd multiple of three sum on neutral instead of nullifying themselves thus conductor generating a potentially dangerous overheating of the conductor Increase in copper loss due to a higher TRMS value of the current that circulates on internal circuits and also due to the body effect on protected wires Transformers Increase of iron loss due to hysteresis cycle distortion and due to the generation of leakage currents on the magnetic core Heating of insulation material due to a possible DC component that can generate saturation of the magnetic core column Increase of loss due to overheating of internal circuits and possible damage of insulation material Motors 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 phasing Re phasing capacitors when at least one of the harmonics has the same frequency as the resonance capacitors phenomenon Effects of this event can be very dangerous with explosion of used re p
38. e 23 C 5 C with relative humidity lt 80 DC voltage Protection against Range Resolution Uncertainty overcharge 0 5 999 9V 0 1V 1 0 rdg 4dgt 1000VDC ACrms Input impedance 2 6MQ AC Voltage AC DC TRMS Protection against Range Resolution Uncertainty overcharge 43 63Hz 10 47Hz 63 400Hz 0 5 999 9V 0 1V 1 0 rdg 3dgt 3 5 rdg 3dgt DAON DCA NIS Input impedance 2 6MQ Max Crest Factor 1 41 AC DC voltage MAX MIN CREST Function Range Resolution Uncertainty Response time MAX MIN CREST 0 5 999 9V 3 5 rdgt 5dgt 1sec Input impedance 2 6MQ Max Crest Factor 1 41 DC current Protection against Range Resolution Uncertainty overcharge 0 5 999 9A 0 1A 2 0 rdgt 5dgt 2000ADC ACrms AC current AC DC TRMS Protection against Range Resolution wncertainty overcharge 43 63Hz 10 47Hz 63 400Hz 0 5 999 9A 0 1A 2 0 rdg 4dgt 3 5 rdg 5dgt sala riesdaediblis Max Crest Factor 3 Corrente AC DC AC DC current MAX MIN CREST Function Range Resolution Uncertainty Response time MAX MIN CREST 0 5 999 9A 3 5 rdgt 5dgt 1sec Max Crest Factor 3 Resistance and Continuity test Protection against Range Best resolution Uncertainty overcharge 0 0Q 59 9kQ 0 10 1 0 rdg 5dgt 1000VDC
39. eneral characteristics iu iui obbbacecspigacceash decaghpsaleabededieaguhe e Eia ERE Dad ted REEE 49 7 2 ENVIRONMENT eiscteccandaaices ant su eai ore a tete a dte Deu eia a Reed 49 7 2 1 Environmental conditions for use ssssssssssssssssssssseseee eene eene enn nh nnn nnnnenr nnne 49 7 3 Accessories provided crinii claacohsacqundesnaqacensadgunses RERO RIEN REEUA TE MERE ERIT ERR ONE M Ens 49 8 SERVICE Gd nenne Ive nene NIMIUM ELTE 50 8 1 Warranty COMOIMOMS P M 50 8 2 Saec 50 9 APPENDIX THEORETICAL OUTLINE ccccccccccceesseceeceseecaeeeeeesceceeeeseeseaeseeeeeesessaeaeenes 51 9 1 Calculation of powers in AC 1P mode ssssssssssssssssseerere eene ee teen 51 9 2 Calculation of powers in AC 3P mode ssssssssssssssseeeenen eere nennen nennen 51 9 3 Calculation of powers in DC mode ssssssssesssssseseeerenen eene eren nnnm neret enne 51 9 4 voltage and current harmonics ssssssseseeeneeneenen eene e nennen 52 9 5 Limit values for harmonics sssssssssssssssseeseeneneenee ener nenmernr eren nenne rrnr nnne nennen 53 9 6 Causes of the presence of harmonics ssssssssssssssssssseseeeneememe eren 53 9 7 Consequence of the presence of harmonics sss eene 54 1 800 561 8187 www ELIT com information itm com HTI HT9022 1 PRECAUTIONS AND SA
40. ese limits could result in electrical shocks to the user and damage to the instrument Mod Par Fnz AC lt 10 0 Hz By positioning the selector switch to V7 the screen to the side will appear pue V 19 01 17 00 00 mum Press key F1 Mod to open the drop down menu shown on the Par DE screen to the side At each subsequent pressure of key F1 the AC 10 0 Hz cursor will scroll through the available items as follows e AC AC DC voltage measurement E ed Help e DC DC voltage measurement Esc ME M e Ph Seq verification of phase sequence e Help it displays the connection diagram of the instrument to the system 19 01 17 00 00 MEE Select the desired mode and press key F4 OK to confirm 5 3 1 DC voltage measurement o E o Ein Be AC unltana manciiramant 1 800 561 8187 www GED com information itm com IN HTI HT9022 Insert the red cable into the input lead VQ and the black cable into the input lead COM Fig 5 and position the leads to the desired points of the circuit being tested Mod Par Fnz DC The screen shows an example of DC Voltage measurement 12 0 V 19 01 17 00 00 mm 5 3 1 1 Key F4 Fnz Mod Par OK ger Press key F4 Fnz to open the drop down menu shown on the DC screen to the side At each subsequent pressure of key F4 the Min cursor will scroll through the available items as fo
41. evant to key F3 turns into Stp On the right a 5ouz 03 10 sample screen which contains e the message Log to indicate that recording is in progress 24 01 16 30 49 e indication 03 10 relevant to the last detected event 19 A e indication of date time and current value reached by the last detected event By pressing key F3 Stp again recording is stopped and the data are stored in the memory If 10 events are detected while recording recording is automatically stopped Fix 15A 1 1 24 01 16 30 50 5 8 3 Key F4 Mem By pressing key F4 Mem the screen to the side appears Y Del OK Esc which lists the Inrush Currents saved in the memory Each displayed page lists 5 memory locations and by pressing key F1 V itis possible to scroll through each single location 103 24 01 16 30 47 104 24 01 16 53 38 I05 24 01 17 06 45 25 01 17 05 00 END Press key F2 Can to open the drop down menu shown on the Y Del OK Esc screen to the side At each subsequent pressure of key F2 the cursor will scroll through the available items as follows Del Last 102 e Del Tot it deletes all InRush current data saved in the 103 2 Sera M memory 104 24 01 16 52 328 e Del Last it deletes the last information saved in the 105 24 01 17 06 45 memory When pressing key F3 OK once the display shows the message BAGEA pressing key F3 again confirms the ealactad itam 25
42. f the clamp jaws in order to obtain accurate WARNING measures Use the marks as a reference see Fig 2 Energy it shows the measured energy value This measurement is only active when a recording is active see par 5 6 1 1 Esc it closes the drop down menu Select the desired parameter and press key F4 OK to confirm 1 800 561 8187 www GED com information itm com 1 800 561 8187 HT9022 5 5 2 2 AC DC power The screen shows an example of AC DC Power measurement Mod Par Sys Fnz AC 50 0 Hz 21 47 kW 7 68 kvari 22 90 kVA 1P 19 01 17 00 00 mum 5 5 2 3 Pfand dPf The screen shows an example of Power Factor and Cosphi Mod Par Sys Fnz measurement AC 50 0 Hz Pf 0 94 i dPf 0 94 i 1P 19 01 17 00 00 mum 5 5 2 3 1 Key F4 Fnz in Power or Pf dPf measurement While measuring Power or Pf dPf press key F4 Fnz to open the drop down menu shown on the screen to the side At each subsequent pressure of key F4 the cursor will scroll through the available items as follows Max it constantly displays the maximum value of the measured parameter Min it constantly displays the minimum value of the measured parameter Rst it deletes all stored Max and Min values Esc it goes back to a normal measuring mode By pressing key F3 OK the selected item is confirmed To the side an example of measurement with active Max fu
43. hasing capacitors Possible saturation of current sensing toroidal transducers resulting in malfunction both in terms RCD devices P of untimely intervention and increase of the intervention threshold Energy disk Increased rotation speed of a disk resulting in measurement errors especially in case of low counters power factor loads dsl controls Reduction of electric duration of contact surfaces Reduced power generation from UPS Internal damage of electronic components not protected by suitable devices devices 1 800 561 8187 www GED com information itm com
44. ich the inrush current event is detected and recorded by the instrument The current value may be set between 5A and 900A in steps of 1A OK v A Int Period s 19 01 17 00 00 zz Sel v A OK Thres Window 1 1 Mode Fix 19 01 17 00 00 e Window the value of the inrush current measuring window The following values are available 1 1 sampling occurs every half period gt 1 2 sampling occurs one every two half periods 1 4 sampling occurs one every four half periods e Mode the inrush current measuring mode Following modes are available gt Fix gt Var For details about the measurement of Inrush Currents see par 5 8 2 5 2 5 Continuity By selecting Continuity the screen to the side will appear Press keys F2 F3 V A to change the setting of the resistance limit value below which the buzzer will sound It may be set between 19 and 1500 in steps of 10 Press key F4 OK to save the changes made and go back to the previous screen see par 5 2 m www GEE com Sel v A OK Res Lim Q 19 01 17 00 00 mum information itm com NY e D HT9022 5 3 POSITION V DC AC DC VOLTAGE MEASUREMENT AND PHASE SEQUENCE VERIFICATION WARNING The maximum DC or AC DC input voltage is 1000V When the display shows gt 999 9V it means that the maximum value the clamp is able to measure has been exceeded Exceeding th
45. ise measurement after a long storage time under extreme environmental conditions wait for the instrument to come back to normal condition see the environmental specifications contained in 6 2 1 before use 1 800 561 8187 www GED com information itm com HTI HT9022 4 OPERATING INSTRUCTIONS 4 1 INSTRUMENT DESCRIPTION 4 1 1 Description of the controls CAPTION Inductive clamp jaw AC voltage indicator LED Jaw trigger Rotary selector switch Key H backlight Function keys F1 F2 F3 F4 LCD display Input terminal VQ Input terminal COM CAT IV MAX 600v 1000A 00 00 AWN Fig 1 Instrument description 4 1 2 Alignment marks Put the conductor as close as possible to the middle of the jaws on the intersection of the indicated marks see Fig 2 in order to meet the meter accuracy specifications CAPTION 1 Alignment marks 2 Conductor p Fig 2 alignment marks 1 800 561 8187 www GE com information itm com ANY HT HT9022 4 1 3 Hand protection ff NN CAPTION i Fae ATN 1 Hand protection 4 a l 1 2 Safe area LN WGAT WAN A MAX soov NN 1000A DES j P C ze 5L 4 n l Fig 3 hand protection Always keep your hands under the hand protection This protection is always located in a suitable position to guarantee a correct safety distance from possible exposed or l
46. ith short duration phenomena such as peaks drops or fluctuations It can be seen from 1 that each signal consists of the summation of infinite harmonics However an order number exists beyond which the value of the harmonics may be considered as negligible Standard EN 50160 suggests cutting the summation in the expression 1 at the 40th harmonic A fundamental index to detect the presence of harmonics is the THD defined as This index takes into consideration the presence of all harmonics and the more distorted is the waveform the higher is the index 1 800 561 8187 www GED com information itm com IN HT HT9022 9 5 LIMIT VALUES FOR HARMONICS Standard EN 50160 prescribes the limits for the Voltage Harmonics the Energy Provider may introduce into the network In normal operating conditions at any time in a week 95 of the efficient values of each harmonic voltage averaged to 10 minutes must be lower than or equal to the values indicated in the following Table The total harmonic distortion THD of supply voltage including all harmonics up to the 40 order must be lower than or equal to 8 Odd Harmonics Even Harmonics Not multiple of 3 Multiple of 3 Order h Relative Orderh Relative Voltage Max Orderh Relative Voltage Max 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 which theore
47. ive parts see Fig 3 4 1 4 Indication of the conventional direction of Current The photo in Fig 4 current direction arrow shows an arrow which indicates the conventional direction of current Fig 4 current direction arrow 4 2 DESCRIPTION OF THE KEYS 4 2 1 Keys F1 F2 F3 F4 Keys F1 F2 F3 F4 take different functions according to the measure set for detailed information see the single functions 4 2 2 Key H Short pressing key H activates the function Data HOLD i e the value of the measures quantity is frozen The symbol Ifl is displayed when this function is enabled This operating mode is disabled when key H is pressed again or the switch is operated 4 2 3 Key To improve the readability of the values measured in dark places the display has been provided with a backlighting function backlight which is turned on and off by long pressing key H This function automatically deactivates after approximately 10 seconds after being activated in order not to discharge the battery 1 800 561 8187 www EEIT com information itm com IN HTI HT9022 4 3 INITIAL SCREEN HT9022 When switching on the instrument the initial screen appears for a few seconds It shows e the instrument model Sn 10120020 e the serial number of the instrument e the firmware version in the instrument s memory V 2 00 Please note down this information especially the firmware
48. llows Cr e Max it constantly displays the maximum value of the Cr measured DC Voltage 12 0 V Rst e Min it constantly displays the minimum value of the ESE measured DC Voltage 19 01 17 00 00 EHE Cr it constantly displays the maximum positive crest value Cr it constantly displays the minimum negative crest value Rst it deletes all stored Max Min Cr and Cr values Esc it goes back to a normal measuring mode WARNING Note the measurement of the 4 Max Min Cr and Cr values is simultaneous regardless of the one displayed Mod Par Fnz DC By pressing key F3 OK the selected item is confirmed To the side an example of measurement with active Max function 12 0 V The display shows the active function 19 01 17 00 00 mum 5 3 1 2 Hold Short pressing key H activates the function Data HOLD The display shows the message El and the screen of the measurement in progress is frozen This operating mode is deactivated when key H is pressed again or the switch is operated 5 3 1 3 Backlight Long pressing key H activates or deactivates the display backlight This function automatically deactivates after approximately 10 seconds after being activated in order not to discharge the batteries 1 800 561 8187 www GED com information itm com Sin HT9022 5 3 2 AC DC voltage and Voltage Harmonics measurement EE aa Nv Fig 6 AC DC voltage
49. n the Miefel Par Sys OK screen to the side At each subsequent pressure of key F1 the AC 1p lt 10 0 Hz cursor will scroll through the available items as follows AC 3P AC 1P measurement of AC Powers on single phase system mE d e AC 3P measurement of AC Powers on three phase He P jJ kvari balanced system BE ee kVA e DC DC Power measurement e Help it displays the connection between instrument and system 19 01 17 00 00 HEN e Esc it closes the drop down menu Select the desired measuring mode and press key F4 OK to confirm See par 9 1 9 2 and 9 3 for details about calculation formulas 1 800 561 8187 www GED com information itm com HT9022 5 5 1 DC power measurement Fig 11 DC power measurement Insert the red cable into input lead VQ and the black cable into input lead COM Position the red lead to and the black lead to and insert the cable into the clamp jaws respecting the direction of current indicated by the arrow see Fig 4 ATTENZIONE A N Insert the cable in the middle of the clamp jaws in order to obtain accurate measures Use the marks as a reference see Fig 2 5 5 1 1 Key F2 Par Press key F2 Par to open the drop down menu shown on the screen to the side At each subsequent pressure of key F2 the cursor will scroll through the available items as follows e Power it shows the measured Power value e Volt C
50. nction The display shows the active function mm www GEE com Mod Par OK AC 50 Min 21 47 Ira 7 68 kjEsc 22 90 KVA 19 01 17 00 00 END Mod Par Sys Fnz AC 50 0 Hz 21 47 kW 7 68 kvari 22 90 kVA 1P 19 01 17 00 00 information itm com wn HT9022 5 5 2 4 AC DC Voltage and Current The screen shows an example of AC DC Voltage and Current Mod Par Sys Fnz measurement AC 50 0 Hz 229 7 V 99 6 A 1P 19 01 17 00 00 EN 5 5 2 4 1 Key F4 Fnz in AC Voltage and Current measurement While measuring Voltage and Current press key F4 Fnz to Mod Par OK open the drop down menu shown on the screen to the side At AC 50 each subsequent pressure of key F4 the cursor will scroll Min through the available items as follows 229 7 Crr e Max it constantly displays the maximum value of the Cr measured parameter 99 6 oda e Min it constantly displays the minimum value of the Esc measured parameter e Cr it constantly displays the maximum positive crest value 19 01 17 00 00 NEN measured Cr it constantly displays the minimum negative crest value measured Zero it zeroes the average value of the measured current Rst it deletes all stored Max Min Cr and Cr values Esc it goes back to a normal measuring mode i WARNING Note carry out current zeroing befo
51. nt 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 consequently non linear currents All this generates odd harmonics of the 50 60Hz line frequency For this reason nowadays the current in the transformers of the distribution boxes contains not only a 50Hz or 60Hz component but also a 150Hz or 180Hz component a 250Hz or 300Hz component and other significant harmonic components up to 750Hz or 900Hz and above The vector sum of the currents in a well balanced system that feeds non linear loads may stil be quite low However the sum does not eliminate all harmonic currents The odd multiples of the third harmonic called TRIPLENS are added together in the neutral conductor and can cause overheating even with balanced loads 1 800 561 8187 www GED com information itm com IN HTI HT9022 9 7 CONSEQUENCE OF THE PRESENCE OF HARMONICS Generally harmonics of even 2nd 4th etc order do not create problems Designers must consider the following points when designing a power distribution system containing harmonic currents Installation parts Effects attributed to Harmonics Fusss Non uniform heating of internal fuse element and consequent overheating which can also lead to an explosion of the fuse casing Increase in
52. ntinuity continuity measurement e Help it displays the connection between instrument and system e Esc it closes the drop down menu Select the desired mode and press key F3 OK to confirm 1 800 561 8187 www GED com Fnz Continuity Help Esc ko 19 01 17 00 00 nmm information itm com wn HT9022 Mod OK Fnz The screen shows an example of Resistance measurement 50 0 kQ 19 01 17 00 00 Em Mod OK Fnz The screen shows an example of Continuity measurement If the measured resistance is lower than the limit resistance value set see par 5 2 5 shown below Lim Res 1Q the 0 3 Q Buzzer sounds continuously Res Lim 10 19 01 17 00 00 Em 5 7 1 Key F4 Fnz While measuring Resistance or Continuity press key F4 Fnz to Mod ER open the drop down menu shown on the screen to the side At each subsequent pressure of key F4 the cursor will scroll Min through the available items as follows i e Max it constantly displays the maximum resistance value 50 0 measured e Min it constantly displays the minimum resistance value measured 19 01 17 00 00 MEE e Rst it deletes all stored Max and Min values e Esc it goes back to a normal measuring mode Mod OK Fnz By pressing key F3 OK the selected item is confirmed To the side an example of measurement with active Max 50 0 ko function The display show
53. ositive crest value Cr it constantly displays the minimum negative crest value Rst it deletes all stored Max Min Cr and Cr values Esc it goes back to a normal measuring mode Mod Par Fnz AC 50 0 Hz By pressing key F3 OK the selected item is confirmed To the side an example of measurement with active Max function The display shows the active function 220 5 V 19 01 17 00 00 5 3 2 3 Voltage harmonics The screen shows an example of Voltage Harmonics lt Par b Fnz measurement By pressing keys F1 lt or F3 gt it is possible to move the cursor over the graph and to select the harmonic to be measured It is possible to measure up to the 25 harmonic for HO1 215 0 YV fundamental frequencies between 10Hz and 75Hz and up to the Th d V 10 0 8 harmonic for fundamental frequencies between 75Hz and 400Hz 19 01 17 00 00 _ 5 3 2 3 1 Key F4 Fnz in Voltage Harmonics measurement While measuring Voltage Harmonics press key F4 Fnz to open the drop down menu shown on the screen to the side At each subsequent pressure of key F4 the cursor will scroll through the available items as follows e Max it constantly displays the maximum RMS value of the selected current harmonic H01 215 e Min it constantly displays the minimum RMS value of the ThdV 10 selected current harmonic e Abs it displays the absolute value of the harmonics in Volts 19 01 17
54. otected internal MAINS derived circuits In the latter case transient stresses are variable for that reason the standard requires that the transient withstand capability of the equipment is made known to the user 1 800 561 8187 www GED com information itm com wi HT9022 2 GENERAL DESCRIPTION The clamp meter HT9022 carries out the following measurements DC voltage and AC CD TRMS voltage DC current and AC CD TRMS current Phase sequence Active reactive apparent power and power factor on single phase and or balanced three phase systems Active reactive apparent energy on single phase and or balanced three phase systems AC voltage harmonics 1 25 and THD up to 75Hz 1 8 above 75Hz AC current harmonics 1 25 and THD up to 75Hz 1 8 above 75Hz DC power Frequency on voltage leads and current clamp jaw Resistance and continuity test with buzzer Electric motor starting currents INRUSH Detection of presence of AC voltage with and without contact with in built sensor in the clamp jaw Each of these functions can be selected using the 7 position selector switch including an OFF position Keys F1 F2 F3 F4 e H are also provided for their use please refer to 4 2 1 800 561 8187 www GED com information itm com wn HT9022 2 1 MEASURING AVERAGE VALUES AND TRMS VALUES Measuring instruments of alternating quantities are divided into two big families e AVERAGE VALUE me
55. press key F4 Go m m www GEE com If more than 3 seconds elapse before detecting the phase L1 of the second sequence the instrument displays the message It is necessary to repeat the measuring cycle from the beginning by pressing key F4 Go and starting from step 1 again Mod Go Ph Seq PH2 19 01 17 00 00 Ez Mod Go Ph Seq 11 TOTAL 47 nn nn mmm information itm com IN HTI HT9022 5 4 POSITION A DC AC DC CURRENT MEASUREMENT WARNING The maximum measurable DC or AC DC current is 1000A When the display shows gt 999 9A it means that the maximum value the clamp is N able to measure has been exceeded Exceeding these limits could result in electrical shocks to the user and damage to the instrument We recommend holding the clamp respecting the safety area created by the hand protection see Fig 3 Mod Par Fnz AC 10 0 Hz By positioning the selector switch to A7 the screen to the side will appear ae A 19 01 17 00 00 Press key F1 Mod to open the drop down menu shown on the Mel Par OK screen to the side At each subsequent pressure of key F1 the ac lt 10 0 Hz cursor will scroll through the available items as follows e AC AC DC voltage measurement Help e DC DC voltage measurement x A e Help it displays the connection between instrument and system e Esc it closes the drop down
56. re clamping the conductor Mod Par Sys Fnz AC 50 0 Hz By pressing key F3 OK the selected item is confirmed 229 7 V To the side an example of measurement with active Max function The display shows the active function 99 6 A 1P 19 01 17 00 00 Pt 1 800 561 8187 www GED com information itm com wn HT9022 5 5 2 5 Voltage harmonics The screen shows an example of Voltage Harmonics lt Par gt Fnz measurement By pressing keys F1 lt or F3 gt it is possible to move the cursor over the graph and to select the harmonic to be measured It is possible to measure up to the 25 harmonic for H05 2 3 V fundamental frequencies between 10Hz and 75Hz and uptothe ThdV 2 4 8 harmonic for fundamental frequencies between 75Hz and 400Hz 19 01 17 00 00 _ 5 5 2 6 Current harmonics The screen shows an example of Current Harmonics Par gt Fnz measurement By pressing keys F1 4 or F3 gt it is possible to move the cursor over the graph and to select the harmonic to be measured It is possible to measure up to the 25 harmonic for HO5 2 9 A fundamental frequencies between 10Hz and 75Hz and up to the Th d 1 10 7 5 8 harmonic for fundamental frequencies between 75Hz and 400Hz 19 01 17 00 00 5 5 2 6 1 Key F4 Fnz in Voltage and Current Harmonics measurement While measuring Voltage or Current Harmonics
57. s 24 5 4 1 3 ls Te d o y enpe oeescdesveswegetrachcecveerd wea ceheieets Post esdeee pel nbddeeecehageeaecnties aA Ea EKE Erd E S 24 5 4 2 AC DC current and Current Harmonics MeasureMent ccccceeceeeeeeeeeeeeeeeeeeeeeneeeeeeeeeeeesseeeees 25 5 4 2 1 eile N a EAE ET EE EEA T E EE E A E AEE EEA 25 5 4 2 2 ACEDO Teu mp EE 25 5 4 2 2 1 Key F4 Fnz in AC DC current measurement ssssssseee ene eene rennen 26 5 4 2 3 G rrenthamaolli oS 1 tee err is ceste a iEn bt rer ene nerf reer errr E er ye rrer TE clc eer 26 5 4 2 3 1 Key F4 Fnz in Current Harmonics measurement sssssssseeeeeeeee rennen 26 5 4 2 4 Je pM 27 5 4 2 5 BRECK CUA e 27 1 800 561 8187 www GED com information itm com wn HT9022 5 5 Position W DC AC DC power measurement essent nennen enne nennen 28 5 5 1 DC power measurement cccceeeccceceeeeceeeeseneeeeeeeaeeeeecaaeeeeeaeeeeesaaeeseseaaeeseseaeeeesseaeeeeeeeeeseesneeeess 29 5 5 1 1 ADAM 29 5 5 1 2 pog e 30 5 5 1 2 1 Key F4 Fnz in DC Power measurement ssssseeeeeeene emen nennen en nennen 30 5 5 1 3 DC voltage and CUIMO Mt Pm 30 5 5 1 3 1 Key F4 Fnz in DC Voltage and Current measurement sse em 31 5 5 1 4 ped op
58. s the active function i 19 01 17 00 00 g 5 7 1 1 Hold Short pressing key H activates the function Data HOLD The display shows the message F and the screen of the measurement in progress is frozen This operating mode is deactivated when key H is pressed again or the switch is operated 5 7 1 2 Backlight Long pressing key H activates or deactivates the display backlight This function automatically deactivates after approximately 10 seconds after being activated in order not to discharge the batteries 1 800 561 8187 www GE com information itm com IN HT HT9022 5 8 POSITION INRUSH A INRUSH CURRENT MEASUREMENT WARNING e The maximum measurable DC or AC DC current is 1000A Do not measure currents exceeding the limits given in this manual Exceeding N these limits could result in electrical shocks to the user and damage to the instrument e We recommend holding the clamp respecting the safety area created by the hand protection see Fig 3 e Currents 3A are zeroed Mod Zero Run Mem 50Hz 01 10 By positioning the selector switch to InRush A the screen to the side will appear The display shows the current settings for recording inrush 10 A currents see par 5 2 4 Fix 15A 1 1 19 01 17 00 00 Fig 14 inrush current measurement Press key F1 Mod to open the drop down menu shown on the screen to the side At each sub
59. sequent pressure of key F1 the cursor will scroll through the available items as follows e 50Hz 50Hz inrush current measurement e 60Hz 60Hz inrush current measurement e 400Hz 400Hz inrush current measurement e DC DC inrush current measurement 19 01 17 00 00 e Help it displays the connection between instrument and system e Esc it closes the drop down menu Select the desired mode and press key F4 OK to confirm 1 800 561 8187 www GED com information itm com IN HTI HT9022 5 8 1 Virtual key Zero By pressing key F2 Zero the average value of measured current is zeroed i WARNING Note carry out current zeroing before clamping the conductor 5 8 2 Key F3 Run WARNING For any frequency of 50Hz 60Hz and DC 32 samples are taken in each half period for 100 half periods while for a frequency of 400Hz 8 samples are taken every half period for 100 half periods In Fix mode the event is detected when the RMS value of the current exceeds the set current threshold value In Var mode the event is detected when the difference between the RMS value of a half period and that of the previous one exceeds the set current threshold value The maximum number of events which can be saved in a single campaign is 10 and the maximum number of storable recordings is 20 Pressing key F3 Run starts an inrush current recording and Mod Zero Stp Mem the indication rel
60. ters instruments measuring the value of the sole wave at fundamental frequency from 10 to 400Hz e TRMS True Root Mean Square VALUE meters instruments measuring the TRMS value of the quantity being tested In the presence of a perfectly sinusoidal wave the two families of instruments provide identical results In the presence of distorted waves instead the readings shall differ Average value meters provide the RMS value of the sole fundamental wave TRSM meters instead provide the RMS value of the whole wave including harmonics within the instrument s bandwidth Therefore by measuring the same quantity with instruments from both families the values obtained are identical only if the wave is perfectly sinusoidal In case it is distorted TRMS meters shall provide higher values than the values read by average value meters 2 2 DEFINITION OF TRUE ROOT MEAN SQUARE VALUE AND CREST FACTOR The root mean square value of current is defined as follows n a time equal to a period an alternating current with a root mean square value of the intensity of 1A circulating on a resistor dissipates the same energy that during the same time would have been dissipated by a direct current with the intensity of 1A This definition results in the numeric expression 1 to T 2 G m E t dt The root mean square value is indicated with the acronym RMS The Crest Factor is defined as the relationship between the Peak Value of a signal and its G
61. the batteries to avoid liquid leaks that could damage the instrument s internal circuits 6 2 BATTERY REPLACEMENT WARNING N Only expert and trained technicians should perform this operation Before carrying out this operation make sure you have removed all cabled from the input leads or the cable being tested from inside the clamp jaw 1 Turn the rotary switch to the OFF position 2 Disconnect the cabled from the input leads and the cable being tested from the clamp jaw 3 Loosen the battery cover fastening screw and remove the cover 4 Remove the flat batteries from the battery compartment 5 Insert two new batteries of the same type 1 5V LR 03 AAA Pay attention to the correct polarity 6 Position the battery cover back over the compartment and fasten it with the relevant screw 7T Do not scatter old batteries into the environment Use the relevant containers for disposal 6 3 CLEANING THE INSTRUMENT Use a soft and dry cloth to clean the instrument Never use wet cloths solvents water etc 6 4 ENDOFLIFE WARNING the symbol on the instrument indicates that the appliance and its accessories must be collected separately and correctly disposed of a 1 800 561 8187 www GED com information itm com HT9022 7 TECHNICAL SPECIFICATIONS 7 1 TECHNICAL CHARACTERISTICS Uncertainty is indicated as of reading digit number It is referred to the following reference conditions temperatur
62. tically apply only to Electric Power Suppliers anyway provide a series of reference values within which also the harmonics put into network by users should be kept 9 6 CAUSES OF THE PRESENCE OF HARMONICS Any appliance altering the sinusoidal wave or simply using a part of such wave causes distortions to the sinusoid and hence harmonics All current signals are therefore someway virtually distorted The most common distortion is the harmonic distortion caused by non linear loads such as household appliances personal computers or motor speed adjusters Harmonic distortion generates significant currents at frequencies which are whole multiples of network voltage Harmonic currents have a remarkable effect on neutral conductors of electrical systems In most countries the network voltage used is three phase 50 60Hz supplied by a transformer with triangle connected primary circuit and star connected secondary circuit The secondary circuit generally generates 230V AC between phase and neutral and 400V AC between phase and phase Balancing loads for each phase has always been a problem electrical system designers Until approximately ten years ago in a well balanced system the vector sum of the currents in the neutral was zero or anyway quite low given the difficulty of obtaining a perfect balance Connected devices were incandescent lights small motors and other devices that presented linear loads The result was an essentially sinusoidal curre
63. trument firmly held in the hand standard shoes standard floor etc 1 800 561 8187 m www GEE com information itm com HT9022 7 1 1 Safety standards Compliant with Standards Technical documentation Safety of measuring accessories Insulation Pollution level Max height Overvoltage category 7 1 2 General characteristics Characteristics of radio module Radio Frequency Power Data rate Memory Internal memory Recordings N max Log Snapshot stores N max InRush stores Mechanical characteristics Size Weight batteries included Jaw opening Max cable size Power supply Battery type Battery life Auto power OFF Display Characteristics Sampling rate IEC EN61010 1 IEC EN61010 2 032 IEC EN61187 IEC EN61010 31 Class 2 double insulation 2 2000m indoor use CAT IV 600V CAT III 1000V to earth max 1000V between inputs Bluetooth V2 0 2 4 GHz 2400 2483 5MHz Class 2 57600 baud 2Mbytes 99 20 each with max 10 events 252 L x 88 W x 44 H mm 9 92 x 3 46 x 1 73 in approx 420g 14 8 ounces 45mm 1 77 in 2 batteries x 1 5V LR 03 AAA approx 53 hours of use in WZ position 5 min with enabled function The display shows the following symbol Qv graphic display 128x128 pixels 128 samples per period base sampling Updating frequency 1 s 7 2 ENVIRONMENT 7 2 1 Environmental conditions for use Reference calibration temper
64. urr it displays the measured Voltage and Current values e Energy it shows the measured energy value This measurement is only active when a recording is active see par 5 6 1 1 e Esc it closes the drop down menu Select the desired parameter and press key F4 OK to confirm 1 800 561 8187 www GED com information itm com Mod OK Volt Curr Energy Esc 19 01 17 00 00 NY e D HT9022 5 5 1 2 DC power Mod Par Sys Fnz DC The screen to the side shows an example of DC power measurement 0 40 kw 19 01 17 00 00 mmu 5 5 1 2 1 Key F4 Fnz in DC Power measurement While measuring DC Power press key F4 Fnz to open the Mod Par OK drop down menu shown on the screen to the side At each DC subsequent pressure of key F4 the cursor will scroll through the available items as follows e Max it constantly displays the maximum value of the 0 40 measured parameter e Min it constantly displays the minimum value of the measured parameter e Rest it deletes all stored Max and Min values 19 01 17 00 00 E e Esc it goes back to a normal measuring mode Mod Par Sys Fnz DC By pressing key F3 OK the selected item is confirmed To the side an example of measurement with active Max 0 40 kW function The display shows the active function 19 01 17 00 00 mam 5 5 1 3 DC voltage and current Mod
65. y pressing key F3 OK the selected item is confirmed To the side an example of measurement with active Max 100 0 A function The display shows the active function 19 01 17 00 00 mum 5 4 1 2 Hold Short pressing key H activates the function Data HOLD The display shows the message M and the screen of the measurement in progress is frozen This operating mode is deactivated when key H is pressed again or the switch is operated 5 4 1 3 Backlight Long pressing key H activates or deactivates the display backlight This function automatically deactivates after approximately 10 seconds after being activated in order not to discharge the batteries 1 800 561 8187 www GED com information itm com NY e WHT HT9022 5 4 2 AC DC current and Current Harmonics measurement Fig 10 AC DC current measurement WARNING N Insert the cable in the middle of the clamp jaws in order to obtain accurate measures Use the marks as a reference see Fig 2 5 4 2 1 Key F2 Par Press key F2 Par to open the drop down menu shown on the screen to the side At each subsequent pressure of key F2 the cursor will scroll through the available items as follows e Current it shows the measured current value e Current Har it shows the measured Current harmonics e Esc it closes the drop down menu Select the desired parameter and press key F4 OK to confirm Current Esc IU

21.47 - ITM Instruments Inc.

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