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DM-111S Current Data Logger Product Manual

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1. The symbols used are described in Tab 1 Example of screen in single phase mode Example of screen in 3 wires three phase mode Example of screen in 4 wires three phase mode For eventual messages displayed see Appendix 1 MESSAGES DISPLAYED Following keys are enabled Se Se Se ee Se F1 F2 SAVE ENTER HOLD MENU START STOP to pass to HARMONIC mode see paragraph 6 1 3 to pass to WAVE mode see paragraph 6 1 4 to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 7 EN 23 A AMPROBE DMIIIS 6 1 3 HARM mode Selecting the HARM mode one of the below screens will
2. DMIIIS 5 5 RESET This option re establishes the default settings of the instrument The default settings of the instrument consist of v ANALYZER CONFIG Frequency 60Hz Full scale of the clamps 1000A Transforming ratio of voltmetric transformers 1 Type of electrical equipment 4 wires Password enabled RECORDER CONFIG Start Manual the recording is started at 00 sec mark on clock after pressing the START STOP key Stop Manual Integration period 15min Recording of harmonics ON Recording of Sag and Surge ON Voltage Reference for Sag and Surge detection 230V Upper Limit for Sag and Surge detection 6 Lower Limit for Sag and Surge detection 10 Selected voltages V1 V2 V3 Selected voltage harmonics Thd 01 03 05 07 Selected currents 11 12 13 IN Selected current harmonics Thd 01 03 05 07 CO GENERATION OFF Powers Pf and coso selected Pt P1 P2 P3 Qti Q1i Q2i Q3i Qtc Q1ic Q2c Q3c St 1 S2 S3 Pft Pf1 Pf2 Pf3 dpft dpf1 dpf2 dpf3 Energies Eat Ea1 Ea2 Ea3 Erit Eri1 Eri2 Eri3 Erct Erc1 Erc2 Erc3 Est Es1 Es2 Es3 The RESET command will not erase the instrument s memory EN 20 A AMPROBE DMIIIS 6 SWITCH FUNCTIONS For a simple usage the main functions of the instrument can be selected by rotating the switch Position VOLTAGE to be used to display voltage and corresponding harmonics see paragraph 6 1 Position
3. 0 50 0 01 0 7 0 80 0 6 EN 47 A AMPROBE DMIIIS 13 1 6 Measurement of harmonics Voltage Range Accuracy Resolution DC 25h 5 0 2digit 26h 33h 10 0 2digit 0 1V 34h 49h 15 0 2digit The voltage harmonics will be null under the following threshold DC if lt 1V or lt 2 of 1 harmonic 1 harmonic if lt 2V 20d 49 if lt 1V or lt 2 1 harmonic Current Range Accuracy Resolution DC 25h 5 0 2digit 26h 33h 10 0 2digit 0 1A 34h 49h 15 0 2digit The current harmonics will be null under the following threshold DC if lt 2 of 1 harmonic or lt 0 2 of clamp full scale 1 harmonic if lt 0 2 of clamp full scale and 49th jf lt 2 1 harmonic or lt 0 2 of clamp full scale Setting the FLEX option the DC component will be ignored 13 1 7 Frequency measurement Instrument set to 50Hz Range Resolution Accuracy 47 53 0 1HZ 1 0 1 digit Instrument set to 60Hz Range Resolution Accuracy 57 63 6 0 1Hz 1 0 1digit 13 1 8 Compliance DM IIIS complies with the standards prescribed for e class 2 EN61036 static counters of active energy e class 3 IEC1268 static counters of reactive energy 13 1 9 Temperature drift Temperature drift 0 1 x accuracy K 13 1 10 Safety The instrument complies to the standards EN 61010 1 A2 1996 Insulation Class 2 Pollution 2 Over volt
4. 59
5. 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 users must be contained EN 53 A AMPROBE DMIIIS 16 2 3 Presence of harmonics causes 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 are in some way distorted The most common situation is the harmonic distortion caused by non linear loads such as household appliances personal computers or speed control units for motors Harmonic distortion causes significant currents at frequencies that are odd multiples of the fundamental frequency Harmonic currents affect considerably the neutral wire of electric installations In most countries the mains power is three phase 50 60Hz with a delta primary and star secondary transformer 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 vectorial 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 small mo
6. REC a Voltage Phase to Neutral for Single Phase and 4 wires Single phase 230V ag has been set three phase syst 3 wires 400V ON P ysel 4 wires 230V b Voltage Phase to Phase for 3 wires three phase system High and Low Voltage Percent threshold used in Voltage Anomalies detection Voltage Sag and Surge LIM LIM Example Three Phase System 4 wires only if ANOM REC Vref 120 LIM 6 LIM 10 gt Single phase 120V flag has been set High Lim 127 2V Low Lim 108 0V 3 wires 480V ON The Instrument will detect a voltage Anomalies if the RMS 4 wires 277V Voltage Values calculated every 10ms beyond the above calculated thresholds see paragraph 16 1 11 12 13 IN RMS value of the current of phase 1 phase 2 phase 3 and of Single phase I1 D re the neutral respectively 3 wires 11 12 I3 4 wires I1 12 13 IN Thd DC 01 49 Current Total Harmonic Distortion DC Component 01 49 Harmonics respectively Thd 01 03 05 07 EN 17 A AMPROBE DMIIIS CO GENERATION ON the instrument is able to face situations of CO GENERATION of electrical equipment that is the equipment under test is able to generate energy besides absorbing it Accordingly the instrument will record the powers and energies both absorbed and generated see paragraph 16 3 1 If this flag is enabled the maximum number of parameters which can be selected decrease to 38 OFF the instrument will record
7. THEORETICAL OUTLINES cc sccis cecteces cosserttasscanidselaecaaeatsustnehsoecsdemeatssacde 52 16 1 Voltage anomalies voltage sag and SUIGe c cece eee 52 16 2 Voltage and current Nanmonies j 6c255 eo ieetnte ee Seed 52 TG 2i TIONS e a a ania aed onl eee eA ee erates 52 16 2 2 Limit values for harmonics aco cicscesicuscsactsanitereiesizebtendevedenecedenceednasdindecendpededelenanebe 53 16 2 3 Presence of harmonics causes c ccccceceeeeeeeeeeeeceeeeeeeeeeeeeeneeeeeeeeeeeeeeeee 54 16 2 4 Presence of harmonics CONSEQUENCEG ceeeeeeeeeeeeeeeeetteeeeeeeeeeeteeees 54 16 3 Power and power factor definitions wii ccsescecercesctece acctee shacedeedetiabeslecskoceceddeaeacastebeided 55 16 3 1 Conventions on powers and power factOrS cccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 56 16 3 2 3 phase 3 wire SYSTEM iscccconccdiccenstsescecciceetecetaneticedesvedtuneteneiennstcnemecbonsteasee 57 16 4 Measuring method outlines ee i li i eee 58 16 4 1 Integration POMOOS sicctesecsestocctcioneiaastnouanthty dtnetvadebonanitunveeteteustoetecceetecbneeienede 58 16 4 2 Power factor Calculations cccccccceceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaeeeeeeeeeeeeeeeee 58 17 AFTER SALE SERVIO E tsr nai eneren E sete Keena EER AREE EEn EEEo aAa K E EREE 59 Peg Waranty ere e E E REEE E ERARE EA EE E E ERE 59 IPAE N E A E E A A AE A E AEN ATE E 59 EN 2 A AMPROBE DMIIIS 1 PRECAUTI
8. VOLTAGE Vi 230 2V Vi 230 2V V2 230 5 V V2 230 5 V V3 230 6 V V3 230 6 V V12 384 2 V V12 384 2 V V23 385 4 V V23 385 4 V V31 383 7 V V31 383 7 V freq 60 0 Hz freq 60 0 Hz Phseq 123 Phseq 123 HARM WAVE HARM WAVE These symbols will be omitted in the following illustrations 4 4 BACKLIGHT FUNCTION When instrument is turned on pressing briefly the ON button the backlight will be enabled The light will be automatically turned off after 5 seconds If the batteries are too low the instrument will disable automatically the backlight function EN 8 A AMPROBE DMIIIS 5 MENU GENERAL By pressing the MENU key the following screen will be displayed MENU GENERAL ANALYZER MEMORY ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE amp TIME LANGUAGE 4 T It s not possible to enter the MENU during a recording or a Real Time Energy measurement 5 1 INITIAL SETTINGS 5 1 1 How to adjust the contrast By pressing the multifunction keys F1 and F2 position the cursor on the CONTRAST item and confirm it by pressing the ENTER key By pressing the multifunction keys F3 and F4 adjust the contrast higher values correspond to a higher contrast while lower values correspond to a lower contrast and press the ENTER key to SAVE the change or press ESC to quit the modification This setting will remain unchanged after turning off the instrume
9. 27 09 00 eres no ae 27 09 00 17 35 12 E Se Example of screen in single Example of screen in 3 wires phase mode or 4 wires three phase mode The symbols used are described in Tab 2 For eventual messages displayed see Appendix 1 MESSAGES DISPLAYED The displayed histograms represent the harmonic content of the current under test The value of the first harmonic h01 primary at 60Hz is not represented in scale along with the other harmonics in order to maximize the display of the latter In case both voltage and current are connected to the instrument inputs eventual negative values therefore represented under the horizontal axis indicate that such current harmonics are generated by the load Following keys are enabled F3 F4 ESC SAVE ENTER HOLD MENU START STOP to move the cursor of the selected harmonic leftwards and rightwards respectively At the same time the values relevant to the order no of the selected harmonic and to the corresponding absolute and relative values calculated on the basis of the fundamental are updated only for three phase mode to display the values of the harmonics of the other voltages available The voltage displayed is indicated above the F3 key to display the page of the harmonics h01 h24 h24 symbol or that of the harmonics h25 h49 h49 symbol to return back to METER mode see paragraph 6 2 2 to store in the instrument memory a record o
10. 3 wire system In the electrical systems distributed without neutral the phase voltages and the power factors and phase cos lose importance Only the phase to phase voltages the phase currents and the total powers remain defined Phase 1 EA WaR 1 2 L ae y L7 Three phase Phase 2 e 6 equipment Phase 3 e w32 l VAR 3 2 In this case the potential of one of the three phases for example phase 2 is taken on as reference potential The total values of the active reactive and apparent power are expressed as sum of the indications of the couples of Wattmeters VARmeters and VAmeters Pror Wi 2 W3 2 Qror VAR VAR3_5 Stor Wi_ gt W3_5 j VAR VAR3_5 y EN 57 A AMPROBE DMIIIS 16 4 MEASURING METHOD OUTLINES The instrument is able to measure voltages currents active powers inductive and capacitive reactive powers apparent powers inductive and capacitive power factors analog or impulse parameters All these parameters are analyzed in a digital way for each phase voltage and current 6 x 128 samples are acquired on a module of 16 x 20ms repeated for the three phases 16 4 1 Integration periods The storage of all the data would require a huge amount of memory Therefore we ve tried to find out a storage method that compresses the information to be memorized while still providing a significant amount of data The chosen method is that of integration After a
11. 5 2digit 0 4V 600kQ phase phase 13 1 2 Voltage anomalies detection manual selection of range Voltage Range Accuracy Resolution Input impedance 15 370V o i 0 2V 300kQ phase neutral 30 635V 0 5 2digit 0 4V 600kQ phase phase Time Accuracy ref to 60Hz Resolution 8 33ms 2 period of fundamental 8 33ms 1 2 period of fundamental 13 1 3 Current measurement using external transducer Protection against Range Accuracy Resolution Input impedance averloads 0 005 0 26V 0 0001V 100kQ for STD or FlexEXT 0 5 2digit 8 3kQ for FlexINT 1000A 5V 0 26 1V 0 0004V 9 4kQ for FlexINT 3000A Minimal Current measurable is equal to 0 5 of Clamp Full Scale 13 1 4 Power measurement cosg 0 5c 0 5i Value Ranges Accuracy Resolution 0 999 9W 0 1W Active power 1KW 999 9KW 0 1KW 1MW 999 9MW 0 1MW 0 999 9VAR 0 1VAR Reactive power 1KVAR 999 9KVAR 0 1KVAR 1MVAR 999 9MVAR 0 1 MVAR 0 999 9VA 0 1VA Apparent power 1KVA 999 9KVA 1 0 2digit 0 1KVA 1MVA 999 9MVA 0 1MVA 0 999 9Wh 0 1Wh Active energy 1KWh 999 9KWh 0 1KWh 1MWh 999 9MWh 0 1MWh 0 999 9VARh 0 1VARh Reactive energy 1KVARh 999 9KVARh 0 1KVARh 1MVARh 999 9MVARh 0 1 MVARh 13 1 5 Cos measurement Coso Resolution Uncertainty expressed in degrees 0 20 1 0
12. A AMPROBE DMIIIS 5 3 BASIC SETTING RECORDER CONFIG This option allows you to check and eventually modify the recording parameters and the selected parameters up to a maximum of 64 The calculation of the selected values is not affected by the rotary switch position If the number of selected values exceeds 64 the message MMEM EW will be displayed The MENU mode is divided into 4 separate sub pages v 1 page This page allows you to set the START STOP mode AUTO or MANUAL the START and STOP time if AUTO mode is selected the Integration Period value the Enabling Disabling of voltage Sag and Surge detection the Enabling Disabling of Harmonics detection Press ENTER to confirm the settings and pass to the following page Press ESC to leave the Menu without modifying the existing parameters v 2 page This page is devoted to the settings relevant to the VOLTAGE recording Press ENTER to confirm the settings and pass to the following page Press ESC to leave this page without modifying the existing parameters From this page you can enter the sub page Harmonics which permits you to select the voltage harmonics to be recorded Press ENTER to confirm the settings and leave the Menu Harmonics Press ESC to leave the Menu Harmonics without modifying the existing parameters v 3 page This page is devoted to the settings relevant to the CURRENT recording Press ENTER to confirm the settings and pass to the following pa
13. CURRENT to be used to display current and corresponding harmonics see paragraph 6 2 Position POWER it permits you to display all the parameters measurable by the instrument voltage current active reactive and apparent power power factor cos and energy see paragraph 6 3 Position ENERGY to be used to display active reactive and apparent power power factor cos and energy see paragraph 6 4 More practically we may schematize the right procedure of use as follows Check and eventually modify the basic settings of the instrument By rotating the switch select the type of measurement to be taken Connect the instrument to the electrical system to be tested Evaluate the values of the parameters under test If you want to record a Decide what to record b Press MENU and check if the existing parameters meet your requirements Connect the External Power Supply Start the recording by pressing START STOP vide TO NO EN 21 A AMPROBE DMIIIS 6 1 POSITION VOLTAGE This function permits you to display in real time the RMS value of AC DC voltage the peak and Thd value of the 3 phase voltages see paragraph 16 2 the waveform and the harmonic spectrum of the 3 phase voltages 6 1 1 Symbols The VOLTAGE position has three working modes v METER v WAVE v HARM These modes will be described in detail in the next paragraphs The symbols used are described below Symb
14. Ea3 bane of the active energy total of phase1 phase2 and 3 wires Eat p 4 wires Eat Ea1 Ea2 Ea3 l Values of the inductive reactive energy total of phase 1 AUE phase 2 and phase 3 Single phase Eri1 Erc1 Values of the capacitive reactive energy total of phase 1 9 wires Erit Eret phase 2 phase 3 4 wires Erit Eri1 Eri2 Eri3 Erct Erc1 Erc2 Erc3 Est Es1 Es2 Es3 Values of the Apparent Energy total of phase phase3 phase2 and Single phase Es1 3 wires Est 4 wires Est Es1 Es2 Es3 The value of the network frequency is automatically selected if at least one phase voltage for the single phase mode or the 4 wires three phase mode or at least one phase to phase voltage for the 3 wires three phase mode is selected The symbols i and c stand for reactive powers Q power factors Pf and cos dpf inductive and capacitive respectively Selecting a power factor Pf or a cos dPf for the recording automatically their inductive value and their capacitive value will be recorded separately For eventual messages displayed see appendix 1 MESSAGES DISPLAYED EN 18 A AMPROBE DMIIIS 5 4 ANALYZER MEMORY This option permits you to display v The present content of the instrument memory v The size of the memorized data v The residual space available for future recordings expressed in days and hours All the stored data can be displayed only if downloaded to a
15. ONLY the powers and energies absorbed Pt P1 P2 P3 P12 P32 Values of the active power total of phase1 phase2 and phase3 only for 3 wires measurement value of the power measured by the Wattmeter 1 2 and 3 2 respectively Single phase P1 3 wires Pt 4 wires Pt P1 P2 P3 Qti Q1i Q2i Q3i Q12i Q32i Values of the inductive reactive power total of phase 1 phase 2 phase 3 only for 3 wires measurement value of the reactive inductive power measured by the VAR meters 1 2 and 3 2 respectively Values of the capacitive reactive power total of phase 1 Single phase Q1i Q1c 3 wires Qti Qtc 4 wires Qti Q1i Q2i dpft dpf1 dpf2 dpf3 Qtc Qic Q2c Q3c phase 2 phase 3 Q3i Q12c Q32c only for 3 wires measurement value of the reactive capacitive Qtc Qic Q2c Q3c power measured by the VA meters 1 2 and 3 2 respectively Values of the apparent power total of phase1 phase2 St S1 S2 S3 12 phase3 Single phase S1 32 only for 3 wires measurement value of the power measured 3 wires St by the VA meters 1 2 and 3 2 respectively 4 wires St S1 S2 S3 Values of the power factors total of phase 1 phase 2 and rere phase 3 respectively Single phase Pf1 dPf1 3w Pft dPft Values of the cos total of phase 1 phase 2 and phase 3 respectively 4w Pft Pf1 Pf2 Pf3 dPft dPf1 dPf2 dPf3 Erct Erc1 Erc2 Erc3 Single phase Ea1 Eat Eat Ea2
16. certain period called the integration period which can be set from 5 seconds to 60 minutes the instrument extracts from the sampled values the following e Minimum value of the parameter during the integration period harmonics excluded e Medium value of the parameter intended as arithmetic average of all the values registered during the integration period e Maximum value of the parameter during the integration period harmonics excluded Only this information repeated for each parameter to be memorized is saved in the memory along with starting time and date of the integration period Once these data are memorized the instrument restarts to take measurements for a new period 16 4 2 Power factor calculations According to the standards in force the medium power factor can t be calculated as average of the instantaneous power factors It must be obtained from the medium values of active and reactive power Each single medium power factor of phase or total is therefore calculated at the end of each integration period on the medium value of the corresponding powers independently on the fact that they must be registered or not Besides for a better analysis of the type of load present on the line and in order to have terms of comparison when studying the invoicing of the low cos the values of inductive and capacitive cos are treated as independent parameters EN 58 A AMPROBE DMIIIS 17 AFTER SALE SE
17. e F3 to show Active Power and Active Energy values e F4 to show Apparent Power and Apparent Energy values amp SAVE to save in the instrument memory a record of Smp type see paragraph 5 4 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled its not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement MENU to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement START STOP to record selected parameters according to the instrument s settings see chapter 7 q 4 4 EN 32 A AMPROBE DMIIIS 6 3 3 WAVE mode Selecting the WAVE mode one of the below screens will be displayed according to the settings made as per paragraph 5 2 The screens show the waveform of the phase currents and the phase or phase to phase voltage 27 09 00 17 3512 27 09 00 L7 339712 27 09 00 1735712 Example of screen in single Example of screen in 3 wires Example of screen in 4 wires phase mode three phase mode t
18. in single phase mode Example of screen in 3 wires three phase mode Example of screen in 4 wires three phase mode The symbols used are described in Tab 3 For eventual messages displayed see Appendix 1 MESSAGES DISPLAYED Following keys are enabled eo F2 s Fi v Three phase 3 wires v Three phase 4 wires SAVE ENTER HOLD MENU 4 START STOP to pass to WAVE mode see paragraph 6 3 3 only for three phase measurement to display the previous or the following screen On the basis of the settings made as per paragraph 5 2 following screens are displayed cyclically total three phase values Wattmeter phases 1 2 and 2 3 values Peak Demand total three phase values phase1 phase2 and phase3 values Peak Demand to save in the instrument memory a record of Smp type see paragraph 5 4 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled its not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the co
19. of the apparent power total of phase 1 phase 2 phase 3 respectively S12 S32 only for 3 wires measurement Value of the power measured by the VA meter Va1 2 and 3 2 respectively see paragraph 16 3 2 Pft pf1 pf2 pfs Values of the power factors total of phase 1 phase 2 phase 3 respectively dPft dof1 dpf2 dpf3 Value of the cosq total of phase 1 phase 2 phase 3 respectively Ead Pd Values of the Total Active Energy and Active Power On demand respectively Esd Sd Values of the Total Apparent Energy and Apparent Power On demand respectively Tab 3 Symbols used in the position POWER The symbols i and c stand for reactive powers Q power factors Pf and cos dpf respectively inductive and capacitive EN 30 A AMPROBE DMIIIS 6 3 2 METER mode Upon rotating the switch to this position the instrument selects automatically the METER mode corresponding to one of the below screens according to the settings made as per paragraph 5 2 27 09 00 17 35 12 27 09 00 17 35 12 27 09 00 17 35 12 SINGLE PHASE POWER POWER POWER THREE WIRE THREE PHASE V1 230 0 V Pt 64 19kW Pt 135 8 kW 11 145 3A Qt 10 99 kVAR Qt 24 59 KVAR P1 32 91k St 65 12 kVA St 138 0 kVA Q1 5 767 KVAR pft 0 99 i pft 0 98 i S1 33 41 kVA dpft 1 00 i dpft 1 00 i pfi 0 99 i Phseq 123 dpf1 0 99 i WAVE ChgP WAVE ChgP WAVE Example of screen
20. selected parameters will be memorized 15min i see chapter 16 4 1 Available choices 5sec 10sec 30sec 1min 2min 5min 10min 15min 60min ON the instrument will record the values of the selected voltage and current harmonics corresponding to the voltages and currents selected in the corresponding pages Voltage and Current Example If the following Parameters are selected a Phase Voltage 1 and 2 Thd Harmonics 1 3 5 b Phase Current 2 and 3 Thd Harmonics 3 5 7 HARM REC The instrument will record a The Phase Voltage 1 and 2 Thd and Harmonics 1 3 5 of the Phase Voltage 1 and 2 while it will not record anything about Phase Voltage 3 b The Phase Current 2 and 3 Thd and Harmonics 3 5 7 of the Phase Current 2 and 3 while it will not record nothing about Phase Current 1 OFF the instrument will not record any voltage or current harmonic selected ON the Instrument will record Voltage Sag and Surge see paragraph 16 1 ANON RES OFF the instrument will not record any voltage Sag and Surge V1 V2 V3 RMS value of the voltage of phase 1 phase 2 phase 3 Single ma V1 V12 V23 or V32 respectively values of the phase to phase voltages 1 2 2 3 or 3 1g y V V v31 3 2 and 3 1 WSS ee 4 wires Vi V2 V3 Voltage Total Harmonic Distortion DC Component 01 49 anei i Harmonics respectively Thd 01 03 05 07 Vref Mi Aa a a T i Mean Anomalies etection Voltage Sag and Surge The Reference is i oy PANOM
21. 2 GENERAL DESCRIPTION 2 1 INTRODUCTION The DM IIIS represents a new approach to the world of electrical measurement Computer assisted instruments such as the DM IIIS permit an easy and fast analysis of a huge quantity of data 2 2 FUNCTIONS The DM IIIS is able to yv display in real time the electrical parameters of a single phase and three phase systems with or without neutral wire and the harmonic analysis of voltages and currents y conduct a direct Energy measurement without memorizing v memorize pressing SAVE key the sampled values of the Parameters present at the instrument s input generates a Smp record inside the instrument s memory It will be possible to analyze the memorized data ONLY by transferring it to a PC y record simultaneously pressing the START key after a proper setting RMS values of voltages currents corresponding harmonics active reactive and apparent powers power factors and cos active reactive and apparent energies voltage sag and surge with 10ms resolution It will be possible to analyze the recorded data ONLY by transferring them to a PC CAUTION Please note the difference between memorize and record These terms will be used repeatedly in this manual Please focus on their definitions and distinctions 2 3 INITIAL SCREEN When turning on the instrument by pressing ON OFF this screen will appear for a few seconds DM IIIS AMPROBE SN 00000000 VER x x
22. 2 Q32 only for 3 wires measurement Value of the power measured by the VARmeter 1 2 i and 3 2 respectively see paragraph 16 3 2 St S1 S2 S3 Values of the total apparent power of phase 1 phase 2 phase 3 respectively S12 32 only for 3 wires measurement Value of the power measured by the VAmeter 1 2 and 3 2 respectively see paragraph 16 3 2 Pft pf1 pf2 pf3 Value of the total power factors power factors of phase 1 phase 2 phase 3 respectively dPft dpf1 dpf2 dpf3 Values of the total cos of phase 1 phase 2 phase 3 respectively Eat Ea1 Ea2 Ea3 Values of the total active energy of phase 1 phase 2 phase 3 respectively Erit Eri1 Eri2 Eri3 Values of the total inductive reactive Energy of phase 1 phase 2 phase 3 respectively Erct Erc1 Erc2 Erc3 Values of the total capacitive reactive Energy of phase 1 phase 2 phase 3 respectively Est Es1 Es2 Es3 Values of the total Apparent Energy of phase 1 phase 2 phase 3 respectively EN 51 A AMPROBE DMIIIS 16 APPENDIX 3 THEORETICAL OUTLINES 16 1 VOLTAGE ANOMALIES VOLTAGE SAG AND SURGE The instrument records as voltage anomalies all those rms values calculated every 10ms beyond the percent thresholds of Voltage Reference Vref set during the programming from 1 to 30 with steps of 1 The maximum upper limit percent is reduced as Vref approaches 600V The Reference must be s
23. 36 8 DURING A RECORDING sccececccd cece sctaeascscttecacse cit clectsvshecteess ciadedce dete in cbdetSiesee cca xiccadseadas 38 9 STOPPING A RECORDING OR AN ENERGY MEASUREMENT ceeeeeeeeeeeeereees 39 10 CONNECTING THE INSTRUMENT TO A PC 0 eeecceceeceeeeeeeeeeeeeeeeeeeeeeteeeeseaeeeseneeeeeees 40 11 MEASURING PROCEDURES ito cessiiepacspactydectnctocdvwiescovien dase ieepichianebecn vend slaniengualeraeerteks 41 11 1 Hints for flexible clamps US Casas aces ads ce dees ech teeds eruee ti gel cersiven coeesnesnentsdecucnienety 41 11 2 Using the instrument in a single phase SYStOM c ccceceeeeeeeeeeeeeeeeeeeeeeeeeeenenaeaeeees 42 11 3 Using the instrument in a three phase 4 wire SYSteM 6 0 6c cece eect ee eee te te eeeeeeeeeees 43 11 4 Using the instrument in a three phase 3 wire SYStOM 66e cece cece ee eee ee ee eeeeeeeeeees 44 12 MAINTENANCE ren eeen eenean eee eee eeaeee EEEE are rp Ee eae Ee EEEE EEEE 46 POR EE E E E A EE E 46 12 2 Battery replacements siirron cs bce see ene cen ace ee ee aetna Bee eee 46 12 3 SANS AIMIIUE cS astvtalincs naiende sa pavededielatioid tas aea da ea ea E iaa 46 13 TECHNICAL SP EG IFICATION SS yc fosiiscp aie actsientanstocdvinieslavieds aesveenyiemebacevaddsianderguaeceesiens 47 13 1 PPS inea E EEOAE ER ER E 47 13 1 1 Voltage measurement autoranging ssessssssserrrneessesrrerrrnrressrrrrernnnnneeee 47 13 1 2 Voltage anomalies detection manual s
24. A AMPROBE DMIIIS 6 4 POSITION ENERGY This function permits to display the values of the phase and total active powers the value of the phase and total capacitive and inductive reactive powers the values of the power factors and phase and total cos Furthermore the instrument is able to measure directly see 6 4 2 the values of the phase and total active energies and the values of the phase and total capacitive and inductive reactive energies 6 4 1 Symbols The position ENERGY has only one working mode v METER This mode will be described in detail in the next paragraphs The symbols used are described below Symbol Description Pt P1 P2 P3 Values of the total active power of phase 1 phase 2 phase 3 respectively P12 P32 only for 3 wires measurement Value of the power measured by the Wattmeter 1 2 and 3 2 respectively see paragraph 16 3 2 Qt Q1 Q2 Q3 Values of the total reactive power of phase 1 phase 2 phase 3 respectively Q12 Q32 only for 3 wires measurement Value of the power measured by the VARmeter 1 2 and 3 2 respectively see paragraph 16 3 2 St S1 S2 S3 Values of the total apparent power of phase 1 phase 2 phase 3 respectively 12 S32 only for 3 wires measurement Value of the power measured by the VAmeter 1 2 and 3 2 respectively see paragraph 16 3 2 Eat Eai Ea2 Eas Values of the total active energy of phase 1 phase 2 phase 3 respectivel
25. DM IIIS User s Manual A AMPROBE a A AMPROBE DMIIIS CONTENTS 1 PRECAUTIONS AND SAFETY MEASURES oe sisscitincancrvsssnsinsesnncenneanssariesaveaneeasivesinancanns sateen 3 Weds Generalene a aa a a EE e E E E 3 ies Preliminary MStrUCtiONS sssrin iae aeaa aaeeea oti Ocean 3 W3 D N USO ae hasan ana ese oa nace E aa ERa a E EAE EEN 4 cs a 2 00 OE ee eee ae eee ee ee 4 2 GENERAL DESCRIPTION sccrsccstarcsnssaceniunaubelcstatcniovadarehnstwoctiacxestinceateniauieeioetabccsiumebesacans 5 ae mms 1 276 1 genet re renee ne ee E EEE are me ree epee eee oer 5 22 WUC ONS eae 5 23 hatal eS 6 52 1a Ree Pa ee eee ore T ere 5 3 PREPARING THE INSTRUMENT siciscccsuisscsies sosvansecascerstatereuseienianes ceciuceniatiatniaeenpriandabvenssen 6 ets WIA CNG CW ae oe ope ccacctet ce cheete cece ieee ue aa EE ET EREE EEEE 6 3 2 Instrument power SUNS BY soar cae cele sie oe act ots Seatac cate wd een ee taco eedeemdecalaeta 6 3 3 ANNE sats escrito ac a i ee ted dle a E a iE da 6 34 Oldd ea E ain aa ene etnies 6 A MOW TO OPERATE moe N E E E E E 7 Al Instrument description siesena ays anien eene ea EEEE eed eae AAEE ESTE ERRAK E 7 4 2 Keyboard description esesesseeieeeteseettketrtnttesttttrintttetesttttrun i cact eat etee aot emeie 7 4 3 Display description Wepre mmeeses eater ct ere rrr rete seer erg mr steer eee Pe ce eee Mere ee erator 8 4 4 EC ITI PMCID ageless hi pec a accidents aed 8 5 MENU GENERAL ves ct
26. IS 9 STOPPING A RECORDING OR AN ENERGY MEASUREMENT The instrument uses a protective routine to avoid the risk of being disturbed or interrupted during a recording or an energy measurement Once a recording or a direct energy measurement see paragraph 6 4 2 has been started with the option PASSWORD enabled after about 3 minutes from the last key pressure or switch rotation it won t be sufficient to press START STOP if a recording is running or F2 if an energy measuring is running to stop the recording it will be necessary to insert the password In order to insert the password which is not changeable press the multifunction keys in the following sequence within 10 seconds F1 F4 F3 F2 In order to enable disable this option see paragraph 5 2 If a wrong password is inserted the instrument will display an error message and will repeat the request If no key is pressed after about 10 seconds the instrument returns back to the original screen EN 39 A AMPROBE DMIIIS 10 CONNECTING THE INSTRUMENT TO A PC In order to connect the instrument to a PC you must connect the serial cable shipped with the instrument to the serial output NOTE Any standard RS 232 cable will not work with the DM IIIS The available transmission speeds are the following 9600 19200 57600 default value The value of the transmission speed Baud Rate is displayed on the initial screen immediately after turning on the
27. JJE FREQUENCY 60HZ CURRENT RANGE 1000A CLAMP TYPE FlexINT TV RATIO 0001 PASSWORD ON J 1 R This page of settings can be confirmed by pressing the ENTER key or cancelled by pressing the ESC key 5 2 1 How to set the type of electrical system under test This parameter permits you to select the type of electrical system under test among the following configurations y SINGLE single phase system yv 3PH3W 3 wires system three phase system without neutral see paragraph 16 3 2 v 3PH4W 4 wires system three phase system with neutral The connections to the instrument inputs will have to be in keeping with the type of system selected Position the cursor on the corresponding word by pressing the multifunction keys F1 and F2 and set the desired value by pressing the multifunction keys F3 and F4 5 2 2 How to set the fundamental frequency Position the cursor on the corresponding word by pressing the multifunction keys F1 and F2 and select the network frequency between the possible values 50Hz and 60Hz by pressing the multifunction keys F3 and F4 This parameter is important ONLY if the input voltage is not sufficient to recognize the value of the frequency for example only the clamps for the current measurement are connected In this case the instrument generates an internal synchronism equal to the value of the set frequency 5 2 3 How to set the current range The value of this parameter must be
28. NU INT PERIOD 15min HARM REC ON ANOM REC ON 15t Page of the RECORDER CONFIG MENU ENTER ee Ss RECORDER CONFIG VOLTAGE 1 HARM REC Pg ON Vref P N LIM 06 LIM 10 230V 243 8V 207 0V 2 re eo Example of 2 page in single phase mode with ANOM flag enabled RECORDER CONFIG VOLTAGE REC HARM REC Pg ON 400V 424 0V 360 0Vv Vref P P LIM 06 LIM 10 To Select MANUAL or AUTOMATIC start stop mode place the cursor on MANU or AUTO using the multifunction key F1 or F2 and select the desired mode using F3 or F4 Use the multifunction keys F1 F2 to position the cursor on the desired word and use the multifunction keys F3 F4 to modify the value Press ENTER to confirm and proceed inside the Menu keeping the settings made Press ESC to leave the Menu without modifying the existing parameters RECORDER CONFIG VOLTAGE REC 2 2 1 HARM REC Pg ON Vref P N LIM 06 LIM 10 230V 243 8V 207 0V oe ey E i Example of 2 page in 3 wires three phase mode with ANOM flag enabled If you want to change Voltage Harm Selection place the cursor on the corresponding Pg symbol then Press F3 ENTER RECORDER CONFIG VOLTAGE HARMONICS EARE a Example of sub page VOLTAGE HARMONICS EN 13 Example of 2 page in 4 wires three phase mode with ANOM flag enabled Use the multifunction key
29. ONS AND SAFETY MEASURES 1 1 GENERAL This instrument has been designed in compliance with EN 61010 directive For your own safety 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 Before and during measurements please be very diligent in following instructions below Do not measure voltage or current in wet or dusty places Do not measure in presence of gas explosive materials or combustibles Do not touch the circuit under test if no measurement is being taken Do not touch exposed metal parts unused terminals circuits and so on Do not use the instrument if it seems to be malfunctioning i e if you notice deformations breaks leakage of substances absence of messages on the display and so on v Use only cables and accessories approved by Amprobe Sy RNR The following symbols are used in this manual Caution keep to what prescribed by the manual An incorrect use could damage the instrument or its components AN High voltage risk of electric shock 1 2 PRELIMINARY INSTRUCTIONS y This instrument has been designed for use in places with pollution class 2 v It can be used for voltage and current measurements in installations of excess voltage category III 635 V phase to phase 370 V phase to earth up to and no more than 2000 meters altitude Please keep to the usual safety standards aimed at Protecting again
30. PC with the operating software After selecting ANALYZER MEMORY from the Main Menu the screen below will be displayed ANALYZER MEMORY 01 Smp 02 01 01 23 02 Rec 02 01 02 01 03 R amp a 02 01 02 01 04 Rec 02 01 02 01 05 R amp a 02 01 02 01 06 Rec 04 01 05 01 DATA SIZE 0 11Mb REC TIME 0d 06h T LAST ALL Example of ANALYZER MEMORY screen v Rec recordings effected with respective Start and Stop dates expressed in the format day month start day month stop without Voltage Sag and Surge detection v R amp a recordings effected with respective Start and Stop dates expressed in the format day month start day month stop with Voltage Sag and Surge detection v Smp values of the samples of voltage and current stored by pressing SAVE v DATASIZE dimensions of the data saved in the instrument memory v REC TIME amount of memory available calculated on the basis of the parameters selected for recording therefore the most complete one expressed in the format days hours to make recordings The maximum quantity of Rec R amp a Smp which can be contained by the instrument is 35 Following keys are enabled F1 F2 only if the quantity of Rec R amp a Smp is higher than 7 to run over all the recordings stored in the instrument memory e F3 to cancel the last recording effected e F4 to cancel all the recordings effected EN 19 A AMPROBE
31. RVICE 17 1 WARRANTY Congratulations Your new instrument has been quality crafted according to quality standards and contains quality components and workmanship It has been inspected for proper operation of all of its functions and tested by qualified factory technicians according to the long established standards of our company Your instrument has a limited warranty against defective materials and or workmanship for one year from the date of purchase provided that in the opinion of the factory the instrument has not been tampered with or taken apart Should your instrument fail due to defective materials and or workmanship during this one year period a no charge repair or replacement will be made to the original purchaser Please have your dated bill of sale which must identify the instrument model number and serial number and call the number listed below Repair Department ATP Amprobe TIF Promax Miramar FL Phone 954 499 5400 800 327 5060 Fax 954 499 5454 Website www amprobe com Please obtain an RMA number before returning product for repair Outside the U S A the local representative will assist you Above limited warranty covers repair and replacement of instrument only and no other obligation is stated or implied 17 2 SERVICE If the instrument fails to operate check battery test leads etc and replace as necessary If the instrument still malfunctions please call the phone number listed above EN
32. TART STOP turning on turning off Backlight ON automatic Off after 5 sec multifunction keys The various functions are deducible from the symbols shown on the bottom of the display by pressing MENU its possible to check and modify the recording parameters to leave a menu or a sub menu double function key ENTER to confirm the settings made v HOLD to block the value updating in real time in all the screens This function is disabled when recording or measuring energy When this function is enabled it s not possible to record or take an energy measurement to save in the instrument memory a Record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to start stop manually a recording see chapter 7 EN 7 A AMPROBE DMIIIS 4 3 DISPLAY DESCRIPTION The display is a graphic module with a resolution of 128x128 pixels 16384 pixels overall Each pixel has a dimension of 0 5mm x 0 5mm the visible area is a square of 73mm x 73mm The first line of the display shows date and time If not correct you can set the exact ones according to the procedure described at paragraph 5 1 2 On the top right corner of the display you can always see the battery indicator and if the external power supply is connected the corresponding symbol 27 09 00 17 35 12 27 09 00 17 35 12 vo tace
33. a time check if a The phase sequence is correct see paragraph 6 1 2 b The active power P of each phase is positive If negative turn the clamp of the phase in question c The value of the Pf of each phase is excessively low typically it is not lower than 0 4 If the Pf is lower than 0 4 check if the phase voltage is associated with the right clamp meter ex the voltage of phase 1 must be associated to the clamp n 1 After checking and if needed modifying the connection of the instrument to the equipment re set the 3 wire mode and the connections shown in Fig yellow and red wires together Energize the electrical equipment under test The values of the available electrical parameters will be displayed of the instrument For further details see the paragraph relevant to the position of the switch You can press HOLD to interrupt the updating in real time of the displayed values If you want to record a Check and modify the values of the basic parameters see paragraphs 5 2 and 5 3 b Check and eventually modify the recording parameters by pressing MENU see the paragraph corresponding to the position of the rotary switch selected d EN 44 A AMPROBE DMIIIS c To start the recording press START see chapter 6 EN 45 A AMPROBE DMIIIS 12 MAINTENANCE 12 1 GENERAL The DM lIIIS is a precision instrument For its use and storage follow the recommendations and instructions contain
34. age category CAT III 370V Phase Earth CAT III 685V Phase Phase EN 48 A AMPROBE DMIIIS 13 1 11 General characteristics Mechanical features Dimensions Weight Internal power supply Battery Life External power supply Display Resolution Dot size Visible area Sampling speed No of samples per period Clamp FLEX3 Maximum diameter of the cable 13 2 ENVIRONMENT 13 2 1 Operating conditions Reference temperature Operating temperature Relative humidity Storage temperature Storage humidity 13 2 2 EMC 8 9 L x 6 5 La x 4 1 H 225 L x 165 La x 105 H mm 3 3 Lb 1 5kg 6 batteries 1 5V series AA LR6 50 hours Use only Amprobe power supply Adapter code DMT EXTPS dot matrix with backlight 128 x 128 dots 16384 dots 0 5mm x 0 5mm 2 9 x 2 9 73mm x 73mm 130 21usec a 60Hz 128 5 9 150 mm 73 2 23 C 1 32 F to 122 F 0 C to 50 C lt 70 14 F to 140 F 10 C to 60 C lt 80 This instrument has been designed in compliance with the EMS standards in force and its compatibility has been tested for EN61326 1 1997 A1 1997 This instrument complies with the prescriptions of the European directive on low voltage 73 23 CEE LVD and EMC directive 89 336 EEC amended by 93 68 EEC 13 3 ACCESSORIES 13 3 1 Standard accessories The package contains Description Model name Instrument DM IIIS Carr
35. always equal to the full scale of the current clamps used to take the measurement In case multi scale clamps are used the value of this parameter must be equal to the scale selected on the clamps Only for FLEX3 clamps You can set this parameter to 1000A or 3000A without any adjusting in the clamps The instrument automatically will change its sensitivity according with settings Set the desired value by pressing the multifunction keys F3 and F4 EN 10 A AMPROBE DMIIIS 5 2 4 How to set the clamp type The value of this parameter must always be equal to the clamp type you are using Two types of clamps are available STD for Standard clamps or Current Transformer v FlexEXT for Flexible clamps with external power supply Vv FlexINT for Flexible clamps FLEX3 coil directly connected with instrument s inputs These clamps allows 1000A and 3000A range Set the desired value by pressing the multifunction keys F3 and F4 5 2 5 How to set the value of the transformer voltage ratio TV RATIO The instrument can also be interfaced with step down transformers in the equipment under test it can display the value of the voltages present on the primary winding of these transformers To do this it will be necessary to set the value of the transformers windings ratio from 2 1 to 3000 1 The default is set at 1 1 for measurements of non transformer systems Select TV RATIO in the ANALYZER CONFIG menu Set the desired value by p
36. ample of screen in 4 wires phase system three phase system three phase system The symbols used are described in Tab 1 For eventual messages displayed see Appendix 1 MESSAGES DISPLAYED Following keys are enabled F1 only for three phase mode to display the values corresponding to the following phase ESC to return back to METER mode see paragraph 6 1 2 amp SAVE to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement MENU to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement START STOP to record selected parameters according to the instrument s settings see chapter 7 4 4 4 EN 25 A AMPROBE DMIIIS 6 2 POSITION CURRENT This function permits you to display in real time the RMS value of AC DC currents the peak and Thdl value see paragr
37. aph 16 2 of the 3 phase currents the waveform and the harmonic spectrum of the 3 phase currents 6 2 1 Symbols The CURRENT position has three working modes v METER v WAVE v HARM These modes will be described in detail in the next paragraphs The symbols used are described below Symbol Description 11 12 13 RMS value of the current of phase 1 phase 2 phase 3 respectively IN RMS value of the current on the neutral Ipk1 Ipk2 Ipk3 Peak value of the current of phase 1 phase 2 phase 3 respectively h01 h49 Harmonic 01 harmonic 49 Thdl Total harmonic distortion factor of the current See paragraph 16 2 freq Network frequency Tab 2 Symbols used in the position CURRENT EN 26 A AMPROBE DMIIIS 6 2 2 METER mode On rotating the switch to this position the instrument selects automatically the METER mode corresponding to one of the screens below according to the settings made as per paragraph 5 2 27 09 00 17 35 12 27 09 00 17 35 12 27 09 00 17 35 12 SINGLE PHASE CURRENT CURRENT CURRENT l1 30 21A l1 30 21A l1 30 21 A 12 23 53 A I2 23 53 A Ipki 49 53 A I3 23 06A I3 23 06A hdl 23 06 freq 60 0 Hz IN 84 A freq 60 0 Hz freq 60 0 Hz HARM WAVE HARM WAVE HARM WAVE Example of screen in single phase mode Example of screen in 3 wires three phase mode Example of scre
38. be displayed according to the settings made as per paragraph 5 2 The screens show the harmonics see paragraph 16 2 of the phase or phase to phase voltage 27 09 00 T7212 27 09 00 L73512 27 09 00 T7332 Example of screen in single Example of screen in 3 wires Example of screen in 4 wires phase system three phase system three phase system The symbols used are described in Tab 1 For eventual messages displayed see Appendix 1 MESSAGES DISPLAYED The displayed histograms represent the harmonic content of the voltage under test The value of the first harmonic h01 fundamental at 60Hz is not represented in scale along with the other harmonics in order to maximize the display of the latter In case both voltage and current are connected to the instrument inputs eventual negative values of the harmonics therefore represented under the horizontal axis indicate that such voltage harmonics are generated by the load Following keys are e F3 F4 F1 s F2 ESC SAVE ENTER HOLD MENU START STOP enabled to move the cursor of the selected harmonic leftwards and rightwards respectively At the same time the values relevant to the order no of the selected harmonic and to the corresponding absolute and relative values calculated on the basis of the fundamental are updated only for three phase mode to display the values of the harmonics of the other voltages available The voltage displaye
39. csczcintasceavabiid esaea e ae aE EE Eae iania t 9 5 Mta GUUS reni EEEE EE E EE E et eect 9 5 1 1 How to adjust the contrast e eeeeeeeereeeeeseeeeeseeeeeeseeesseesseseseseseeeee 9 5 1 2 How to set date and time sensssseessesenerrrneeessertnrnrrttssetrrnrnnnnnnsettnnnnnnnnnneeeen enn 9 5 1 3 How to set the language o2scssccestsscccunrodsdcohtebeiesndadsoeodbehiaeassabadanbdebnpsenadideustaendeons 9 5 2 Basic setting analyzer C Nfig ress ste sarees tetera ka iE aE 10 5 2 1 How to set the type of electrical system under test cccceeeeeeeeeeeeeeeeeeeeeees 10 5 2 2 How to set the fundamental frequency ccccceeeeeeeeeeeeeneeeeeeeeeeeeeeeenteeeeeeeees 10 5 2 3 How to Set the current range 0 nccssiccnicdcdesasesssenedsnedecninesdevedatecevadevndevedsvaderadevedees 10 5 2 4 How to set the clamp WDC wciiecinesiccncurertendienstapsiensbnnsbsndncnstiasnenebenmninubenebentieee bonne 11 5 2 5 How to set the value of the transformer voltage ratio TV RATIO 11 5 2 6 How to enable disable the password ccceeeeeeeeeeeeeneeeeeeeeeeeeeeeentneeeeeeeees 11 5 3 Basic setting recorder config ecciec cco tes cte deeds ccctcecinterdnet eeteneitercaciencidne eerdaciencroncieics 12 5 4 FANALYST ONY as Sts crater cree cesta were ace leet narod eects wiereret nla leeticucreecince 19 LSPS mmc nae ee ae ee oer ee eee 20 6 SWITCH FUNCTIONS vircicdiccsisccsccthecdscdainsgacetesddaneciasbanadun cca ansbsdad
40. d is indicated above the F3 key to display the page of the harmonics h01 h24 symbol h24 or that of the harmonics h25 h49 symbol h49 to return back to METER mode see paragraph 6 1 2 to save in the instrument memory a Smp type record see paragraph 5 4 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled its not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 7 EN 24 A AMPROBE DMIIIS 6 1 4 WAVE mode Selecting the WAVE mode one of the below screens will be displayed according to the settings made as per paragraph 5 2 The screens show the waveform of the phase or phase to phase voltage 27 09 00 17 3512 27 09 00 17 35 12 27 09 00 17 35 12 v12 400 2 v Vpk12 565 5 V freq 60 0 Hz ce ae ee ee Example of screen in single Example of screen in 3 wires Ex
41. ed in this manual in order to avoid possible damages or dangers Never use the instrument in environments with a high humidity or temperature Do not expose the instrument to direct sunlight Always turn off the instrument after use 12 2 BATTERY REPLACEMENT When the battery indicator on the display appears almost empty IF the batteries must be replaced CAUTION Only qualified technicians should operate the instrument Before replacing AN the batteries disconnect the test leads from circuit under voltage in order to avoid electrical shocks Disconnect cables and clamps from the circuit under test Turn the instrument off by pressing ON OFF Remove the cables from the input terminals Unscrew the screw of the battery cover and remove the cover Replace the batteries with 6 new 1 5 V AA Reposition the cover and fasten it with the proper screw D Oe ON 12 3 CLEANING Use a soft dry cloth to clean the instrument Do not use wet clothes solvents water and so on EN 46 A AMPROBE DMIIIS 13 TECHNICAL SPECIFICATIONS 13 1 FEATURES The accuracy is stated as of the reading number of digits It refers to the following atmospheric conditions temperature 73 F 2 F 23 C 1 C with relative humidity lt 75 13 1 1 Voltage measurement auto ranging Range Accuracy Resolution Input impedance 15 370V 0 2V 300kQ phase neutral 310 635V 0
42. election of range cceeeeee 47 13 1 3 Current measurement using external transducer eeeeeeeeeeeeeeeeteee 47 13 1 4 Power measurement cos 0 50 0 5 ceceeeeeeeeeeeeeeeeeeeeeeeenteeeeeeeeeeeeeeeee 47 13 1 5 Gos meas rement sinnini n E a a aa O 47 13 1 6 Measurement of harmonics ccccceeeeeeeeeeeeeeceeeeeeeeeeeeeseeaeeeeeeeeeeeeeeeeee 48 13 1 7 Frequency M aSUreMeN ccceeecceceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee 48 13 18 COMPIAINGG eescctcentcantumlnretacentvaynceybeoyvunudveyteryheavbeniueuiveyiesy bees ia Eies OSEANE 48 13 1 9 Temperature OHM scar iiacita rise rencasiwenddrcnrernannaeeaortpascateemnaaackeeuarinae 48 13 110 Safety conns a a aaa a iinan 48 13 1 11 General characteristics nneeeeeeooeeenneeeeeeeoeetttnnrrrneerrrtttnnnrrneoerttennnenneeee 49 13 2 JENVIRONMENT so omescnn n edt ar eed a aaa a a es 49 13 2 1 Operating conditions science cecetnentnerdseccnrinnatnnncnnsennctvencedeeeantadudettneadmostadyiiennds 49 13 2 2 EMO esiema eenaa eaaa iee ocr eee e ahaa eee eae eee 49 13 3 ACCESSORIES eerie ey ery ee aeaa a eee eer ee re 49 13 3 1 Standard accessories oi ccciscsesrdicosctact adeeb elalbseliie nitiaea eal obebidaled dadeaiibodebadsedsde 49 14 APPENDIX 1 MESSAGES DISPLAYED iii tics adie arith aaed 50 15 APPENDIX 2 RECORDABLE PARAMETERS SYMBOLG ccceeceeeeereeseteeeeeeees 51 16 APPENDIX 3
43. en in 3 wires three phase mode The symbols used are described in Tab 4 For eventual messages displayed see Appendix 1 MESSAGES DISPLAYED Following keys are enabled F2 s Fi to start stop immediately a direct energy measurement The energy counters will start increasing proportionally to the active power absorbed by the load The results obtained cannot be memorized If the active power is negative the counters will not increase only for 4 wires measurement to display the following screen On the basis of the settings made as per paragraph 5 2 following screens are displayed cyclically Overall three phase values values of phase 1 phase 2 and phase 3 SAVE ENTER HOLD MENU START STOP to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled its not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU dur
44. en in 4 wires three phase mode The symbols used are described in Tab 2 For eventual messages displayed see Appendix 1 MESSAGES DISPLAYED Following keys are enabled ee ese Se q F1 F2 SAVE ENTER HOLD MENU START STOP to pass to HARMONIC mode see paragraph 6 2 3 to pass to WAVE mode see paragraph 6 2 4 to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled its not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 7 EN 27 A AMPROBE DMIIIS 6 2 3 HARM mode Selecting the HARM mode one of the screens below will be displayed according to the settings made as per paragraph 5 2 The screens show the harmonics see paragraph 16 2 of the phase currents
45. ence for Sag and Surge detection 230V Upper Limit for Sag and Surge detection 6 Lower Limit for Sag and Surge detection 10 Selected voltages V1 V2 V3 Selected voltage harmonics Thd 01 03 05 07 Selected currents 11 12 13 IN Selected current harmonics Thd 01 03 05 07 CO GENERATION OFF Powers Pf and coso selected Pt P1 P2 P3 Qti Q1i Q2i Q3i Qtc Q1c Q2c Q3c St S1 S2 S3 Pft Pf1 Pf2 Pf3 dpft dpf1 dpf2 dpf3 Energies Eat Ea1 Ea2 Ea3 Erit Eri1 Eri2 Eri3 Erct Erc1 Erc2 Erc3 Est Es1 Es2 Es3 If the user changed the instrument s settings can quickly resume the above configuration using the RESET option see paragraph 5 5 By pressing START STOP the recording of the selected parameters is started according to the settings made in the MENU see paragraphs 5 2 and 5 3 The rotary switch position doesn t affect the recording setting As the default value of the integration periods is set at 15 minutes the instrument will store data in the temporary memory for 15 minutes Afterwards the instrument will elaborate the results saved in the temporary memory and will save the first series of values in the definitive memory Therefore if an integration period of 15 minutes has been set the recording will continue for about 15 minutes before producing a series of recorded values If the recording is interrupted before the selected integration period has completely elapsed the data stored in the te
46. escantacd binchartdonpiaveriabiauaberdead 21 6 1 Position VOLTAGE za ess ict etwas aa ome ate cos carson en nace tde E EE E 22 6k Sees 6 Se kone ne eer er are ne e ee ee eee ere eer er A en er 22 6 1 2 METER MOJE nitear eaor rr A pie alan veda esau bein wean EAEE EEEo nda 23 6 1 3 HARM MOTE rs EE E EEEE EE E enn 24 6 1 4 WAVE MOOG saihisasiisandnascnasdvahanandvanasandnahanandvantnandcahinasvauaaannanananaauaaaniauananivanes 25 G2 Position CURRENT cierre ere aa EE e eE EE Era E e a E EE ia iE 26 6 21 VON siriako e a a e a ea 26 62 2 METER MOQO eR da e a daada in 27 6 2 3 HARM MOdE is osicncencscna secesiencknceuuantnetanwanas ennmoendoanaumedeaimomanuuaseeaguancmmmnennoumabanucte 28 6 24 WAVE INDE ocrni errai 29 6 3 Position POWER cesaissrccisersstdpsridsnaxcte ereenn E an eaaa aar ea Ea aaa aE EE a EEE 30 Sc Pees 111 612 Sine e a i a E enn peer 30 6 3 2 METER MOJE crror 31 6 3 3 WAVE MOE iscinteersenedetedsnedevesenedesessbedsericnedsiedskedserdseedsiedsiedeesiserdsinisinisercsuntces 33 6 4 Position ENERGY ciaucanttas iieiea EE E EAT ea DEE EERE E EErEE RE 34 6 41 OVID ONG cree teres nnana eain enana snc tree ede hs ence ded aiaa aaaea en 34 A AMPROBE DMIIIS 6 4 2 METER OGG easasicecco ose cecscegheessbasceevategieensdeieeeesdngecestdedisecedepiexeutepueevsdeodeeeeteoies 35 7 STARTING A RECORDING ere eee ececad ict ees Se siecene el secncaieie de deeh tes ste niceeaeee se cuaceteeettesiades
47. et to Nominal Voltage Phase to Neutral for Single Phase and 4 wires three phase system Nominal Voltage Phase to Phase for 3 wires three phase system The Instrument will detect Voltage Anomalies if the RMS Voltage Values calculated every 10ms beyond the above calculated thresholds These limits remain unchanged throughout the recording period When a Voltage anomaly occurs the instrument records e The number corresponding to the phase where the anomaly occurred e The direction of the anomaly UP and DN identify respectively voltage drops sag and peaks Surge e The date and time of the beginning of the event in the form day month year hour minutes seconds hundredths of second e The duration of the event in seconds with a resolution of 10ms e The minimum or maximum value of voltage during the event 16 2 VOLTAGE AND CURRENT HARMONICS 16 2 1 Theory Any periodical non sine wave can be represented as a sum of sinusoidal waves having each a frequency that corresponds to an entire multiple of the fundamental according to the relation v t V V sin t p 1 k 1 where Vo Average value of v t Vi Amplitude of the fundamental of v t Vk Amplitude of the kt harmonic of v t LEGEND 1 Fundamental 2 Third Harmonic 3 Distorted Waveform Effect of the sum of 2 multiple frequencies EN 52 A AMPROBE DMIIIS In the mains voltage the fundamenta
48. evant to the position of the switch 7 You can press HOLD to interrupt the updating in real time of the displayed values 8 If you want to record a Check and if needed modify the values of the basic parameters See paragraphs 5 2 and 5 3 b Check and if needed modify the recording parameters by pressing MENU see the paragraph corresponding to the position of the rotary switch selected c To start the recording press START see chapter 6 EN 42 A AMPROBE DMIIIS 11 3 USING THE INSTRUMENT IN A THREE PHASE 4 WIRE SYSTEM CAUTION The maximum voltage between L1 L2 L3 amp COM inputs is CAT Ill 635 V f phase phase 370 V phase to earth Do not measure voltages exceeding the limits prescribed by this manual Should you exceed the voltage limits you could damage the instrument and or its components or endanger your safety Fig 2 Instrument connection in a three phase 4 wire system CAUTION If possible before connecting the instrument to the electrical equipment to be tested take the power supply off the electrical equipment 1 Check and if needed modify the basic settings of the instrument see paragraphs 5 2 and 5 3 Particularly the 3PH4W mode must be set 2 Rotate the switch to the position corresponding to the type of analysis desired In case of doubts select the position POWER see paragraph 6 3 3 Connect the phase and neutral voltage wires follo
49. f Smp type see paragraph 5 4 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instruments settings see chapter 7 EN 28 A AMPROBE DMIIIS 6 2 4 WAVE mode Selecting the WAVE mode one of the below screens will be displayed according to the settings made as per paragraph 5 2 The screens show the waveform of the phase currents 27 09 00 L P P3012 27 09 00 17 35 12 Example of screen in single Example of screen in 3 wires phase mode or 4 wires three phase mode The symbols used are described in Tab 2 For eventual messages displayed see Appendix 1 MESSAGES DISPLAYED Following keys are enabled ee Se Se 4 4 F1 ESC SAVE ENTER HOLD MENU START STOP only for three phase mode to display the value
50. fc 1 Pfi 1 Pfi 1 Pfi Pf Pfi 1 Qc 0 Qc Q Qc 0 Qc 0 Qi 0 Qi 0 Qi Q Qi 0 270 Equipment under test Capacitive Generator gt Equipment under test Inductive Load where Symbol CSSignnificance Remarks _ Value of the active power Capacitive power factor Inductive power factor A meter Value of the capacitive reactive power Value of the inductive reactive power P Value of the active power Capacitive power factor l r s Negative parameter Inductive power factor enean Value of the capacitive reactive power Qi Value of the inductive reactive power EN 56 A AMPROBE DMIIIS and where The active power positive or negative is defined in the panel and therefore acquires the value of the active power in that moment The reactive power inductive or capacitive positive or negative is defined in the panel and therefore acquires the value of the reactive power in that moment therefore acquires the value of the power factor in that moment The active power positive or negative or the reactive power inductive or capacitive positive or negative is NOT defined in the panel and therefore acquires a null value 1 The power factor inductive or capacitive positive or negative is NOT defined in the panel PPE The power factor inductive or capacitive positive or negative is defined in the panel and Pf 1 16 3 2 3 phase
51. ge Press ESC to leave this page without modifying the existing parameters From this page you can enter the sub page Harmonics which permits you to select the current harmonics to be recorded Press ENTER to confirm the settings and leave the Menu Harmonics Press ESC to leave the Menu Harmonics without modifying the existing parameters v 4th page Menu composed of two sub pages devoted to the selection of the POWERS and ENERGIES to be recorded From this page you can enter the sub page POWER and ENERGY which permits you to select the parameters to be recorded Selecting the active powers for the recording the corresponding active energies will be automatically selected Selecting the reactive powers for the recording the corresponding reactive energies will be selected Press ENTER to leave this page confirming the modifications made Press ESC to leave the Menu without modifying the existing parameters The various pages of the RECORDER CONFIG can be schematized as follows EN 12 A AMPROBE DMIIIS aR MENY Use the multifunction keys F1 F2 to position the cursor on the desired word and use the multifunction keys F3 F4 to select deselect the desired parameter it s selected if marked in black Press ENTER to confirm and leave the Menu keeping the settings made Press ESC to leave the Menu without modifying the existing parameters RECORDER CONFIG START STOP MA
52. ge between phase n and Neutral In RMS value of n phase current fn Phase displacement angle between voltage and current of n phase In presence of distorted voltages and currents the previous relations vary as follows Phase Active Power P 9 Vi Liq COS Py n 1 2 3 k 0 n 1 2 i a 2 Phase Reactive Power naid Q S82 P n 1 2 3 S P P Phase Power Factor P n 1 2 3 5 dPFn cosfin phase displacement between the Distorted Power Factor fundamentals of voltage and current of n n 1 2 3 phase Total Active Power Pror P P P Total Reactive Power Qror Q Q Q Total Apparent Power Soar Pe 40s Total Power Factor where Vkn RMS value of kth voltage harmonic between n phase and Neutral kn RMS value of kth current harmonic of n phase fkn Phase displacement angle between kth voltage harmonic and kth current harmonic of n phase EN 55 A AMPROBE DMIIIS Note It is to be noted that the expression of the phase Reactive Power with non sine waveforms would be wrong To understand this it may be useful to consider that both the presence of harmonics and the presence of reactive power produce among other effects an increase of line power losses due to the increased current RMS value With the above given relation the increasing of power losses due to harmonics is added to that introduced by the presence of reactive power In effect even if the two phenomena together contrib
53. hree phase mode The symbols used are described in Tab 3 For eventual messages displayed see Appendix 1 MESSAGES DISPLAYED Following keys are enabled e F1 only for three phase mode to display the values relevant to the following phase On the basis of the settings made as per paragraph 5 2 following screens are displayed cyclically v 3 wires three phase values of the Wattmeter 1 2 values of the wattmeter 2 3 v 4 wires three phase values of phase 1 phase 2 and phase 3 7 ESC to return back to METER mode see paragraph 6 3 2 amp SAVE to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled its not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement MENU to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement START STOP to record selected parameters according to the instrument s settings see chapter 7 q 4 4 EN 33
54. ing a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 7 EN 35 A AMPROBE DMIIIS 7 STARTING A RECORDING As you can read in the paragraph 5 3 a recording can be started manually or automatically Therefore after setting all the parameters and leaving the Menu the instrument will start to record v MANUALLY the recording will start when Instrument s time reaches the 00 seconds value after pressing START STOP v AUTOMATICALLY If the operator has pressed START STOP the instrument will remain in stand by until the date and time previously set then the recording will start While if the operator doesn t press START STOP the recording will never start CAUTION For recordings ALWAYS use the external power supply even the AN instrument allows the operator to perform a recording using internal batteries If you press Start a recording without the external power supply the instrument will display a warning message No ext supply Press START key again to run the recording or press ESC to quit If during a recording the external power supply is de energized the instrument will continue the recording using the internal battery power until the batteries are exhausted the data stored until the definitive turning off won t get lost For this we recommend you ALWAYS insert a new set of batteries before a long recording The instrument uses sophis
55. instrument see paragraph 2 3 The value of this parameter can be modified only with the management software For download instructions please refer to software help file In order to transfer the memorized data from the instrument to the PC the following procedure must be followed 1 Switch ON the instrument and wait until the Initial screen disappears 2 Connect the serial output of the instrument to the serial output of the PC through the serial cable 3 Install the software and start it Close the introduction window 4 Refer to software help file for further instructions EN 40 A AMPROBE DMIIIS 11 MEASURING PROCEDURES 11 1 HINTS FOR FLEXIBLE CLAMPS USE All flexible clamps are based on Rogowski s coil principle Voi M dt which shows that the voltage output signal is proportional to the rate of change of current In order to get current value the voltage output signal is integrated electronically Typically the voltage output signal is really low and this suggests using shielded cable for coil connection to instrument s inputs WARNING As the Coil Output connector can t be perfectly shielded it s recommended to outdistance it by any Potential source EN 41 A AMPROBE DMIIIS 11 2 USING THE INSTRUMENT IN A SINGLE PHASE SYSTEM CAUTION The maximum voltage between L1 and COM inputs is 370V phase earth Do not measure voltages exceeding the limits prescribed b
56. l has a frequency of 60 Hz the second harmonic has a frequency of 120 Hz and 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 events such as sags surges or fluctuations It can be noted that in 1 the index of the sigma is from 1 to the infinite 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 to stop the index in the expression 1 in correspondence of the 40 harmonic A fundamental element to detect the presence of harmonics is Thd defined as This index takes all the harmonics into account The higher it is the more distorted the waveform gets 16 2 2 Limit values for harmonics EN 50160 fixes the limits for the harmonic voltages which can be introduced into the network by the power supplier In normal conditions during whatever period of a week 95 if the RMS value of each harmonic voltage mediated on 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 40 order must be less than or equal to 8 Odd harmonics Even harmonics Not multiple of 3 Multiple of 3 Order Order h eae i T Relative voltage Max h Relative voltage Max 5 6 3 5 2 2
57. monic current e The neutral wire must be of sufficient gauge e The distribution transformer must have an additional cooling system to continue operating at its rated capacity when not suited to the harmonics This is necessary because the harmonic current in the neutral wire of the secondary circuit circulates in the delta connected primary circuit This circulating harmonic current heats up the transformer e Phase harmonic currents are reflected on the primary circuit and continue back to the power source This can cause distortion of the voltage wave so that any power factor correction capacitors on the line can be easily overloaded The 5 and the 11 harmonics contrast the current flow through the motors making its operation harder and shortens their average life In general the higher the ordinal harmonic number the smaller its energy is and therefore the impact it will have on the devices except for transformers EN 54 A AMPROBE DMIIIS 16 3 POWER AND POWER FACTOR DEFINITIONS In a standard electric installation powered by three sine voltages the following is defined Phase Active Power n 1 2 3 P V I cos 3 F n _ e2 2 Phase Reactive Power nas ise n P Phase Power Factor P n 1 2 3 S Total Active Power A Total Reactive Power Oror Q Q 0 Total Apparent Power Sior PBor Qror Por Total Power Factor Prror Stor where Vn RMS value of volta
58. mporary memory will not be elaborated and the corresponding series of values won t be transferred to the definitive memory EN 37 A AMPROBE DMIIIS 8 DURING A RECORDING If during a recording the external power supply is de energized the instrument will continue the recording using the internal battery power until the batteries are exhausted the data stored up to the point the instrument shuts down won t get lost For this we recommend you ALWAYS insert a new set of batteries before a long recording The instrument uses sophisticated algorithms to prolong the battery life Particularly if the instrument is recording or is measuring energy and the external power supply is not connected after about 5 minutes from the last key pressure or switch rotation the instrument starts a special procedure to save the batteries ECONOMY MODE the instrument keeps recording but the display is turned off During a recording the following are disabled v AUTOPOWER OFF function v ON OFF key v HOLD key v SAVE key Press the MENU key and the following screen will appear INFO REC n XX on Zo fo Z gt IJJI z gt mm ozJ00 B This page includes START Date and Time Integration Period Actual Number of Elapsed Integration Periods Actual Recording Time Status of Harmonic Flag Status of Voltage Anomalies Flag Number of Voltage anomalies occurred during the recording DEO Or E O EN 38 A AMPROBE DMII
59. nfiguration MENU during a recording or an energy measurement to record selected parameters according to the instruments settings see chapter 7 EN 31 A AMPROBE DMIIIS 6 3 2 1 PEAK ENERGY DEMAND In three phase system selecting the POWER Position and pressing F1 key 3 times you can reach the Peak Demand mode The Peak Demand screen shows the Max Average value of Active Power and the corresponding Energy or Max Average value of Apparent Power and the corresponding Energy measured during the last or running recording The Average value is evaluated in the Integration Period set for the recording This screen also shows the corresponding Active Energy and the corresponding Peak Date and Time 27 09 00 17 35 12 27 09 00 17 35 12 PEAK DEMAND PEAK DEMAND THREE PHASE THREE PHASE Ead 98 36 kWh Esd 120 84 kVAh Pd 24 59 kW Sd 30 21 kVA Peak Date Peak Date 25 09 00 17 00 25 09 00 18 15 Int Period 15min Int Period 15min Rec n 06 Rec n 06 ChgP Wh VAh ChgP Wh VAh Example of PEAK ENERGY DEMAND screen e F1 to display the previous or the following screen On the basis of the settings made as per paragraph 5 2 following screens are displayed cyclically v Three phase 3 wires total three phase values Wattmeter phases 1 2 and 2 3 values Peak Demand v Three phase 4 wires total three phase values phase1 phase2 and phase3 values Peak Demand
60. nt 5 1 2 How to set date and time By pressing the multifunction keys F1 and F2 position the cursor on the DATE amp TIME item and confirm it by pressing the ENTER key By pressing the multifunction keys F1 and F2 position the cursor on the Date format FORMAT and pressing the F3 or F4 keys select one of the following Date format DD MM YY 2 digit for day 2 digit for Month 2 digit for Year or MM DD YY 2 digit for Month 2 digit for Day 2 digit for Year Then using F1 and F2 multifunction keys position the cursor on the value to be modified and change the value using F3 and F4 keys The time is expressed as hh mm 2 digit for hours 2 digit for minutes military time Press the ENTER key to SAVE the change or press ESC to quit the modification This setting will remain unchanged also after turning off the instrument 5 1 3 How to set the language By pressing the multifunction keys F1 and F2 position the cursor on the LANGUAGE EN or LINGUA IT item and confirm it by pressing the ENTER key By pressing the multifunction keys F1 and F2 position the cursor on the desired language and press the ENTER key to SAVE the change or press ESC to quit the modification This setting will remain unchanged after turning off the instrument EN 9 A AMPROBE DMIIIS 5 2 BASIC SETTING ANALYZER CONFIG Selecting the ANALYZER CONFIG item and pressing the ENTER Key the following page will be displayed ANALYZER CONFIG SYSTEM
61. o prolong the battery life Particularly v The instrument switches OFF the backlight Automatically after 5 seconds v If the instrument is displaying in real time and the external power supply is not connected after about 5 minutes from the last key pressure or switch rotation the instrument turns off automatically AUTOPOWER OFF procedure v Ifthe instrument is recording or is measuring energy and the external power supply is not connected after about 5 minutes from the last key pressure or switch rotation the instrument starts a special procedure to save the batteries ECONOMY MODE the instrument keeps recording but the display is turned off 3 3 CALIBRATION The instrument complies with the standards mentioned in this manual Its performance is guaranteed for one year from the purchase date 3 4 STORAGE To guarantee accurate measurements after a long storage period in severe environmental conditions wait until the instrument resumes its normal conditions see environmental conditions listed in paragraph 13 2 A AMPROBE DMIIIS 4 HOW TO OPERATE 4 1 INSTRUMENT DESCRIPTION a 1 oS S Legend Inputs for voltage and currents RS232 serial output Plug for external power supply Display Rotary switch Keyboard SE eS ee 4 2 KEYBOARD DESCRIPTION The following keys are available ON OFF F1 F2 F3 F4 MENU ESC ENTER HOLD SAVE S
62. ol Description V1 V2 V3 RMS value of the voltage of phase 1 phase 2 phase 3 respectively V12 V23 or V32 RMS Value of the phase to phase voltages V31 Vpk1 Vpk2 Vpk3 Peak value of the voltage of phase 1 phase 2 phase 3 and of the phase to phase Vpk12 Vpk32 voltage 12 and 32 respectively h01 h49 Harmonic 01 Harmonic 49 ThdV Factor of total harmonic distortion of the voltage see paragraph 16 2 freq Network frequency Phseq Phase sequence indicator 123 correct 132 inverted 023 null voltage on the black wire 103 null voltage on the red wire 120 null voltage on the blue wire 100 null voltages on the red and blue wires 020 null voltages on the black and blue wires 003 null voltages on the black and red wires Tab 1 Symbols used in the position VOLTAGE EN 22 A AMPROBE DMIIIS 6 1 2 METER mode On rotating the switch to this position the instrument selects automatically the METER mode corresponding to one of the below screens according to the settings made as per paragraph 5 2 27 09 00 17 35 12 27 09 00 17 35 12 27 09 00 17 35 12 SINGLE PHASE VOLTAGE VOLTAGE VOLTAGE V12 384 2V Vi 230 2V V1 230 2 V V32 385 4 V V2 230 5 V Vpk1 325 5 V V31 383 7 V V3 230 6 V ThdV 0 0 freq 60 0 Hz V12 384 2 V freq 60 0 Hz V23 385 4 V V31 383 7 V freq 60 0 Hz Phseq 123 HARM WAVE HARM WAVE HARM WAVE
63. power factors and coso 6 3 1 Symbols The position POWER has two working modes v METER v WAVE For voltage and current harmonics see paragraphs 6 1 3 and 6 2 3 respectively These modes will be described in detail in the next paragraphs The symbols used are described below Symbol Description V1 V2 V3 RMS value of the voltage of phase 1 phase 2 phase 3 respectively V12 V23 V32 V31__ RMS Value of the phase to phase voltages freq Network frequency Phseq Phase sequence indicator 123 correct 132 inverted 023 null voltage on the black wire 103 null voltage on the red wire 4120 null voltage on the blue wire 100 gt null voltages on the red and blue wires 020 null voltages on the black and blue wires 003 null voltages on the black and red wires 11 12 13 RMS value of the current of phase 1 phase 2 phase 3 respectively IN RMS value of the current of the neutral Pt P1 P2 P3 Values of the active power total of phase 1 phase 2 phase 3 respectively P12 P32 only for 3 wires measurement Value of the power measured by the Wattmeter 1 2 and 3 2 respectively see paragraph 16 3 2 Qt Q1 Q2 Q3 Values of the reactive power total of phase 1 phase 2 phase 3 respectively Q12 Q32 only for 3 wires measurement Value of the power measured by the VAR meter Va1 2 and 3 2 respectively see paragraph 16 3 2 St S1 S2 S3 Values
64. r 6 EN 43 A AMPROBE DMIIIS 11 4 USING THE INSTRUMENT IN A THREE PHASE 3 WIRE SYSTEM 1 CAUTION The maximum voltage between L1 L2 L3 and COM L2 inputs is CATIII A 635V phase phase Do not measure voltages exceeding the limits prescribed by this manual Should you exceed the voltage limits you could damage the instrument and or its components or endanger your safety Fig 3 Instrument connection in a 3 wire three phase system CAUTION e Please note that in this case the yellow cable neutral is connected with the red cable on phase 2 e f possible before connecting the instrument to the electrical equipment to be tested take the power supply off the electrical equipment Check and if needed modify the basic settings of the instrument see paragraphs 5 2 and 5 3 Particularly the 3 wire mode must be set Rotate the switch to the position corresponding to the type of analysis desired In case of doubts select the position POWER see paragraph 6 3 Connect the phase and neutral voltage wires following the connections shown in Fig TO measure current and power connect the clamp to the phase conductor following the specifications shown on the clamp and the connections shown in Fig In case of doubts set temporarily the 3PH3W mode select the POWER position connect the yellow wire of the instrument to earth and connecting one clamp
65. ressing the multifunction keys F3 and F4 5 2 6 How to enable disable the password The instrument is provided with a protective routine to avoid the risk of being disturbed or interrupted during a recording or an energy measurement Once a recording or a direct energy measurement has been started with the option PASSWORD enabled after about 3 minutes from the last key pressure or switch rotation it won t be possible to press START STOP to stop the recording PASSWORD will be displayed and it will be necessary to insert the password In order to insert the password which is not changeable press the multifunction keys in the following sequence within 10 seconds F1 F4 F3 F2 If you wait more than about 10 seconds the display will return to the meter mode and the instrument will continue recording If you insert a wrong password the message Password error will be displayed under PASSWORD After a few seconds the display will return to meter mode and the instrument will continue recording In order to enable disable this option the correct password will have to be entered The display will return to meter mode and START STOP will have to be pressed again to stop the recording You will then need to re enter the ANALYZER CONFIG menu and scroll up or down to the item PASSWORD ON using the multifunction keys F1 and F2 Then turn the password off by pressing the multifunction keys F3 and F4 EN 11
66. s F1 F2 to position the cursor on the desired voltage harmonic and use the multifunction keys F3 F4 to select deselect it s selected if highlighted in black Press ENTER to confirm Press ESC to leave the Menu without modifying the existing settings The instrument will record the values of the selected harmonics corresponding to the voltages selected in one of the two pages of the Menu previously illustrated A AMPROBE DMIIIS From 2 page of RECORDER CONFIG MENU ENTER A RECORDER CONFIG RECORDER CONFIG CURRENT REC CURRENT REC HARM REC Pg ON HARM REC Pg ON EAEE Example of 3 page in single phase mode Example of 3 page in 3 wires three phase mode If you want to change Current Harm Selection place Cursor on the corresponding Pg symbol then Press F3 RECORDER CONFIG CURRENT HARMONICS ele Pe E tt Example of sub page CURRENT HARMONICS EN 14 Use the multifunction keys F1 F2 to position the cursor on the desired word and use the multifunction keys F3 F4 to modify the value or select deselect the desired parameter it s selected if marked in black Press ENTER to confirm Press ESC to leave the Menu without modifying the existing settings RECORDER CONFIG CURRENT REC HARM REC Pg ON mm wo Ee him oe eee Example of 3 page in 4 wires three phase mode Use the multifunction keys F1 F2 to position the c
67. s relevant to the following phase to return back to METER mode see paragraph 6 2 2 to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled its not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 7 EN 29 A AMPROBE DMIIIS 6 3 POSITION POWER This function permits you to display in real time the RMS value of AC DC voltage the peak and ThdV value of the 3 phase voltages the waveform of the 3 phase voltages the RMS value of AC DC currents the peak and Thdl of the 3 phase currents the waveform of the 3 phase currents Furthermore the instrument calculates and displays the value of the phase and total active powers the value of the phase and total reactive and capacitive powers the value of the phase and total
68. sor on the orresponding Pg Symbol and then press F3 ENTER RECORDER CONFIG RECORDER CONFIG RECORDER CONFIG Le Example of ENERGY sub page Example of ENERGY sub page Example of ENERGY sub page in single phase mode in 3 wires three phase mode _ in 4 wires three phase mode gt Be Ee ee ee ee ee Selecting deselecting the active energies for the recording the corresponding active powers will be automatically selected deselected Selecting deselecting the reactive energies for the recording the corresponding reactive powers will be selected deselected Selecting deselecting the reactive energies for the recording the corresponding reactive powers will be selected deselected EN 16 A AMPROBE DMIIIS Symbols Description Advised settings The recording of all the selected parameters will start at 00 START MAN seconds after pressing START STOP see chapter 7 The recording of all the selected parameters will be interrupted SOE MAN manually by pressing START STOP see chapter 9 The recording of all the selected values will be started interrupted at the set dates and times In order to start the lee oe recording the user will have to press START STOP to set the instrument in Stand by mode until the start date and time previously set see chapter 7 The value of this parameter determines how many seconds INT PERIOD the values of all the
69. st dangerous currents Protecting the instrument against incorrect operations y Only the accessories supplied with the instrument guarantee compliance with the safety standards Accordingly they must be in good conditions and if necessary they must be replaced with identical models v Do not take measurements on circuits exceeding the specified current and voltage limits v Before connecting cables alligator clips and clamps to the circuit under test make sure that the right function has been selected S EN 3 A AMPROBE DMIIIS 1 3 DURING USE Please read carefully CAUTION Should you fail to keep to the prescribed instructions you could damage the instrument and or its components or endanger your safety v When the instrument is connected to the circuit under test do not touch any unused terminal v When measuring current other currents located near the leads may affect the measuring accuracy v When measuring current always position the wire in the very middle of the jaws in order to obtain the highest accuracy v A measured value remains constant if the HOLD function is active Should you notice that the measured value remains unchanged disable the HOLD function 1 4 AFTER USE v After use turn off the instrument by pressing ON OFF for a few seconds v If you will not be using the instrument for long periods of time use the storage instructions described at paragraph 3 4 A AMPROBE DMIIIS
70. t correct are properly connected check the Phase Sequence connection ERR CONNECTION The instrument has detected a wrong connection to Voltage inputs Check the Voltage connections see paragraph 11 Error Vref The user set a Voltage reference not compatible with voltage at instrument s input Check Voltage Reference set in CONFIG RECORDER Error Error 5 Error during Memory Reading Contact Amprobe assistance EN 50 A AMPROBE DMIIIS 15 APPENDIX 2 RECORDABLE PARAMETERS SYMBOLS Symbol Description Vi V2 V3 RMS value of the voltage of phase 1 phase 2 phase 3 respectively V12 V23 V31 Value of phase to phase voltages 11 12 13 RMS value of the current of phase 1 phase 2 phase 3 respectively IN RMS value of the current of the neutral DC Continuous component of voltage or current h01 h49 Harmonic 01 Harmonic 49 of voltage or current ThdV Factor of total harmonic distortion of the voltage see paragraph 16 2 Thdl Factor of total harmonic distortion of the current see paragraph 16 2 Pt P1 P2 P3 Values of the total active power of phase 1 phase 2 phase 3 respectively P12 P32 only for 3 wires measurement Value of the power measured by the Wattmeter 1 2 and 3 2 respectively see paragraph 16 3 2 Qt Q1 Q2 Q3 Values of the total reactive power of phase 1 phase 2 phase 3 respectively Q1
71. ticated algorithms to prolong the battery life Particularly y The instrument switches OFF the backlight Automatically after 5 seconds v If the instrument is just displaying in real time and the external power supply is not connected after about 5 minutes from the last key pressure or switch rotation the instrument turns off automatically AUTOPOWER OFF function v Ifthe instrument is recording or is measuring energy and the external power supply is not connected after about 5 minutes from the last key pressure or switch rotation the instrument starts a special procedure to save the batteries ECONOMY MODE the instrument keeps recording but the display is turned off Before starting a recording the operator should first evaluate the state of the equipment decide what to record and set the instrument accordingly In order to facilitate this task we have decided to supply the instrument pre set with a general configuration which should fit most cases EN 36 A AMPROBE DMIIIS The chosen configuration is the following v ANALYZER CONFIG Frequency 60Hz Full scale of the clamps 1000A Transforming ratio of voltmetric transformers 1 Type of electrical equipment 4 wires Password enabled RECORDER CONFIG Start Manual the recording is started 1 minute after pressing the START STOP key Stop Manual Integration period 15min Recording of harmonics ON Recording of Sag and Surge ON Voltage Refer
72. tors 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 300Hz or 360Hz component and other significant components of harmonic up to 750Hz or 900HZ and higher The vectorial 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 and can cause overheating even with balanced loads 16 2 4 Presence of harmonics consequences In general even harmonics i e the 2 4 etc do not cause problems Triple harmonics odd multiples of three are added on the neutral instead of canceling each other thus creating a condition of overheating of the wire which is extremely dangerous Designers should take into consideration the three issues given below when designing a power distribution system that will contain har
73. ursor on the desired current harmonic and use the multifunction keys F3 F4 to select deselect it s selected if marked in black Press ENTER to confirm Press ESC to leave the Menu without modifying the existing settings The instrument will record the values of the selected harmonics corresponding to the currents selected in one of the two pages of the Menu previously illustrated A AMPROBE DMIIIS From 3 page of RECORDER CONFIG MENU ENER RECORDER CONFIG CO GENERATION ON POWER Pg ENERGY Pg Example of 4 page In order to select the POWER to be recorded use the multifunction keys F1 F2 to position the cursor on the orresponding Pg Symbol and then press F3 ENTER RECORDER CONFIG RECORDER CONFIG RECORDER CONFIG Pe EN EATA pE e Example of POWER sub page in Example of POWER sub page Example of POWER sub page in single phase mode in 3 wires three phase mode 4 wires three phase mode Selecting the active powers for the recording the corresponding active energies will be automatically selected Selecting the reactive powers for the recording the corresponding reactive energies will be selected EN 15 A AMPROBE DMIIIS From 3 page of RECORDER CONFIG MENU ENER RECORDER CONFIG CO GENERATION ON POWER Pg ENERGY Pg Example of 4 page In order to select the ENERGIES to be recorded use the multifunction keys F1 F2 to position the cur
74. ute to the increase of power losses in line it is not true in general that these causes of the power losses are in phase between each other and therefore can be added one to the other mathematically The above given relation is justified by the relative simplicity of calculation of the same and by the relative discrepancy between the value obtained using this relation and the true value It is to be noted moreover how in case of an electric installation with harmonics another parameter called distorted Power Factor dPF is defined In practice this parameter represents the theoretical limit value that can be reached for Power Factor if all the harmonics could be eliminated from the electric installation 16 3 1 Conventions on powers and power factors As for the recognition of the type of reactive power of the type of power factor and of the direction of the active power the below conventions must be applied The stated angles are those of phase displacement of the current compared to the voltage for example in the first panel the current is in advance from 0 to 90 compared to the voltage Equipment under test Inductive Generator gt Equipment under test Capacitive Load 90 P 0 P P P P P 0 Pfc 1 Pfc 1 Pfc Pf Pfc 1 Pfi 1 Pfi Pf Pfi 1 Pfi 1 Qc 0 Qc 0 Qc Q Qc 0 180 Qi 0 Qi Q Qi 0 Qi 0 0 P 0 P P P P P 0 Pfc 1 Pic Pf Pfc 1 P
75. wing the connections shown in Fig 2 4 To measure current and power connect the clamp meter to the phase conductor following the specifications shown on the clamp and the connections shown in Fig 2 In case of doubts select the position POWER and connecting one clamp a time check if a the phase sequence is correct see paragraph 6 1 2 b the active power P of each phase is positive If it is negative remove current transducer from the wire and reconnect it so the transducer label faces the opposite direction c the value of the Pf of each phase is not excessively low typically it is not lower than 0 4 In case the Pf is lower than 0 4 check if the phase voltage is associated with the right clamp meter for example the voltage of phase 1 must be associated to the clamp meter no 1 5 Apply voltage to the electrical equipment under test if previously shut off for the instrument connection 6 The values of the available electrical parameters will be displayed For further details see the paragraph relevant to the position of the switch 7 You can press HOLD to interrupt the real time updating of the displayed values 8 If you want to record a Check and modify the values of the basic parameters see paragraphs 5 2 and 5 3 b Check and if needed modify the recording parameters by pressing MENU see the paragraph corresponding to the position of the rotary switch selected c To start the recording press START see chapte
76. without the externa the external power supply power supply In that case press START again No parameter sel A recording has been started without selecting any value to be recorded Press START STOP and select at least a value entering the MENU No Phase selected Voltage and or current harmonics have been selected and the corresponding flag has been enabled HARMONICS ON but no phase voltage or current has been selected Select at least one phase voltage and or current erties The inserted password is wrong see paragraph 7 Check the password PASSWORD OK The inserted password is correct P The instrument is waiting for the recording to be Please wait started see paragraph 6 Recording The instrument is recording see paragraph 6 Too many param More than 63 parameters have been selected harmonics included or More than 38 parameters with CO GENERATION Flag enabled Deselect some values Too many record The quantity of recorded data Smp exceeds the maximum allowed 35 Cancel some recordings after transferring them to a PC Check the Phase Sequence ERR SEQ The Phase Sequence is not correct connection If there isnt a situation of co ERR P Kaai gti eal anie Nant stan Ine generation check if the clamps g g are properly connected The active powers shown on the right side of the ak oe Fea aa ERR SEQ amp P message are negative and the Phase Sequence g p is no
77. x CALIBRATION DATE 00 00 00 BAUD RATE 57600 Here you can see y serial number of the instrument SN v firmware software release VER v calibration date CALIBRATION v transmission speed through serial I O Baud Rate EN 5 A AMPROBE DMIIIS 3 PREPARING THE INSTRUMENT 3 1 INITIAL CHECK This instrument has been checked before shipment from an electrical and mechanical point of view All possible precautions have been taken in order to deliver it in perfect condition Notwithstanding on receipt of the instrument we suggest that you check it summarily to make sure that no damage has occurred in transit Should you find irregularities please contact the carrier immediately Furthermore please make sure that the parcel contains all the accessories and parts listed in paragraph 13 3 In case of discrepancies please contact your dealer Should it be necessary to return the instrument to the supplier please keep to the instructions given at paragraph 17 3 2 INSTRUMENT POWER SUPPLY The instrument can be powered by v 6 batteries 1 5V AA LR6 series located in the compartment on the back of the instrument v an external power supply code DMT EXTPS supplied with the instrument standard accessory CAUTION For recordings ALWAYS use the external power supply even though the AN instrument allows the operator to perform a recording using internal batteries The instrument uses sophisticated algorithms t
78. y Erit Eri1 Eri2 Eri3 Values of the total inductive reactive Energy of phase 1 phase 2 phase 3 respectively Erct Erc1 Erc2 Erc3 Values of the total capacitive reactive Energy of phase 1 phase 2 phase 3 respectively Est Es1 Es2 Es3 Values of the total Apparent Energy of phase 1 phase 2 phase 3 respectively Tab 4 Symbols used in the position ENERGY The symbols i and c stand for reactive powers Q and energies Er inductive and Capacitive respectively EN 34 A AMPROBE DMIIIS 6 4 2 METER mode On rotating the switch to this position the instrument selects automatically the METER mode corresponding to one of the below screens according to the settings made as per paragraph 5 2 27 09 00 17 35 12 27 09 00 17 35 12 27 09 00 17 35 12 ENERGY ENERGY ENERGY SINGLE PHASE THREE PHASE THREE PHASE Eai 0 000 kWh Eat 0 000 kWh Eat 0 000 kWh Erc1 0 000 kVARh Erct 0 000 kVARh Erct 0 000 kVARh Erid 0 000 oan Erit 0 000 r Erit 0 000 kVARh Es1 0 000k Est 0 000 k Est 0 000 kVAh P1 36 KW Pt 36 38 KW Pt 167 7 kW Q1 6 375 KVAR Qt 6 375 KVAR Qt 30 47 KVAR S1 36 94 KVA St 36 94 kVA St 170 4 kVA Meas Time 00 00 00 Meas Time 00 00 00 Meas Time 00 00 00 Meas Meas ChgP Meas Example of screen in single phase mode Example of screen in 4 wires three phase mode Example of scre
79. y this manual Should you exceed the voltage limits you could damage the instrument and or its components or endanger your safety Je n pu O O O MN EIR Fig 1 Instrument connection in a single phase system CAUTION A If possible before connecting the instrument to the electrical equipment to be tested take the power supply off the electrical equipment 1 Check and if needed modify the basic settings of the instrument see paragraphs 5 2 and 5 3 Particularly the single phase mode must be set 2 Rotate the switch to the position corresponding to the type of analysis desired In case of doubts select the position POWER see paragraph 6 3 3 Connect the phase and neutral voltage wires respecting the connections shown in the picture 4 If you want to measure current and power connect the clamp meter to the phase conductor respecting the specifications shown on the clamp and the connections shown in the picture In case of doubt select the position POWER and check if the active power P is positive If it is negative remove current transducer from the wire and reconnect it so the transducer label faces the opposite direction 5 Apply voltage to the electrical equipment under test if previously shut off for the instrument connection 6 The values of the available electrical parameters will be displayed on the display of the instrument For further details see the paragraph rel
80. ying case HW1254A External power supply 12VDC DMT EXTPS 3 Flexible clamp meters 1000A 3000A FLEX3 4 cables and alligators for voltage measurement KITENERGY3 1 Software Toplink TOPLINK Serial Cable C232NG1 EN 49 A AMPROBE DMIIIS 14 APPENDIX 1 MESSAGES DISPLAYED Message Description Advices i Available memory autonomy for the recording AUTONOM which is being effected The operator is trying to cancel all the recordings Press ESC in order not to cancel CLEAR ALL Enter effected the whole memory press ENTER to confirm l Press ESC in order not to cancel Enio LAST oe is trying to cancel the last recording the last recording press ENTER to confirm Data saved The data have been saved DATA SIZE Dimensions of the stored data HOLD By pressing the proper key the HOLD function Press HOLD again to disable this has been activated function A recording has been started and at least 5 i Password minutes fe passed from the last activity of the i n word instrument see paragraph 7 Pe Invalid date The inserted date is not correct Check the inserted date Energy Measuring The instrument is taking an energy measurement Press F1 to stop it Cancel some recordings after Memory Full The memory of the instrument is full transferring them to a PC Verify it you really want to start i j j i j No ext supply A recording has been started without connecting the recording

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