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DMIII MultiTest Power Quality Recorder Product Manual
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1. The following keys are available F3 F4 to adjust the REMINDER PLACE SAVE to store the test result associating to the actual REMINDER PLACE 7 ESC to quit this mode without saving 9 2 SAVING DISPLAYED VALUES OF POWER QUALITY FUNCTION During a Real Time measurement in POWER QUALITY function if the user press the SAVE button a Smp record will be generate in the ANALYZER MEMORY This file contains the Voltage and Current values present at instrument s input when the user pressed the SAVE key Downloading these values to a PC using the management Software the Power Energy Harmonics etc values can be calculated and displayed as well EN 67 A AMPROBE DMIII MULTITEST 10 RECORDINGS 10 1 START A RECORDING The recording function is available only for POWER QUALITY rotary switch position As you can read in the paragraph 7 2 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 time reach the 00 seconds value after pressing START STOP y 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 yn For recordings we recommend to use
2. 14 3 4 Memory Safety Test Memory POWER QUALITY 14 4 ENVIRONMENT Reference Temperature Working Temperature Range Working Humidity Storage Humidity Range Storage Humidity 225 L x165 W x 105 H mm 1 2Kg approx 6 x 1 5 LR6 AA AM3 MN 1500 LOWQ 800 test INSULATION TEST 500 test GROUND TEST 1000 test PHASE SEQUENCE 1000 test POWER QUALITY recording 20 hours Code Graphic with Backlight 128x128 73mmx73mm 999 measurement 2MByte with 63 channels select and Integration Period 15min gt more than 30 days 23 5 G 0 40 C lt 80 10 60 C lt 80 EN 79 A AMPROBE DMIII MULTITEST 14 5 ACCESSORIES Standard accessories Description Code Clamp 1000A diameter 54 mm cable 2m DM CT HTA Flexible Clamp 1000A 3000A cable 2m AM Flex33 External Power Supply Adapter DMT EXTPS EN 80 A AMPROBE DMIII MULTITEST 15 SERVICE 15 1 WARRANTY CONDITIONS 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 wit
3. conductors of the separate circuit and the other to the equalising potential node This test is to be effected only for SELV circuits or with electrical Earth separation installation j anre Measurement of separation among the installation circuits EN 84 A AMPROBE DMIII MULTITEST ALLOWABLE VALUES The test result is positive when the insulation resistance indicates values higher or equal to those indicated in the table reported inthe section relative to insulation tests Notes SELV system is a system of category zero or very low safety voltage featured by v Power supply autonomous source ex batteries small generator or safety ex safety transformer v Protection separation to other electrical systems double or reinforced insulation or a metal screen connected to the ground v There are no earthed points insulated from the ground PELV system is a system of category zero or very low safety voltage featured by v Power supply autonomous source ex batteries small generator or safety ex safety transformer v Protection separation to other electrical systems double or reinforced insulation or a metal screen connected to the ground v There are earthed points not insulated from the ground Electrical separation is a system featured by v Power supply insulation transformer or autonomous source with equivalent features ex generator y Protection separation to other elect
4. The instrument is capable of keeping the data stored even though batteries are not installed The Instrument Date and Time settings aren t lost if you change the batteries within 24hours ATTENTION t Only skilled technicians can perform this operation Before replacing batteries make sure that all test leads have been disconnected from input terminals Switch OFF the instrument Remove all the test leads from the input terminals Unscrew the fixing screws from the battery compartment cover and remove it Remove all batteries replacing them with 6 new ones of the same type 1 5V LR6 AA AM3 MN 1500 respecting the polarity signs Fix the screws on the battery compartment cover Then put the holster on oe gi 13 3 INSTRUMENT CLEANING Use a soft dry cloth to clean the instrument Never use wet cloths solvents water etc EN 75 A AMPROBE DMIII MULTITEST 14 TECHNICAL SPECIFICATIONS 1 Accuracy is indicated as of reading number of digits It refers to the following 4 1 TECHNICAL FEATURES atmospheric conditions a temperature of 23 C 5 C with a relative humidity lt 60 1 4 1 1 Safety Test functions e LOWQ 200mA CONTINUITY TEST AUTO RT RT MODE Range Q Resolution Q Accuracy 0 01 9 99 0 01 5 es 10 0 99 9 0 1 2 Reading 2 digit After Test leads calibration Test Current Resolution for Test current 1mA gt 200mA DC
5. 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 Qi 0 Qi Q Q 0 Qi 0 180 0 P 0 P P P P P 0 Pfc 1 Pfc Pf Pfc 1 Pfc 1 Pfi 1 Pfi 1 Pfi Pf Pfi 1 Qc 0 Qc Q Qc 0 Qc 0 Qi 0 Qi 0 Q Q Qi 0 270 Equipment under test Capacitive Generator gt Equipment under test Inductive Load where Symbol Significance Remarks Positive parameter usan P Value of the active power Negative parameter generator Qi Value of the inductive reactive power 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 e therefore acquires the value of the reactive power in that moment The power factor inductive or capacitive positive or negative is defined in the panel and 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 Pf The power factor inductive or capacitive positive or
6. 04 01 05 01 DATA SIZE 0 11Mb REC TIME 0d 06h T J 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 Anomalies Sag and Surge detection Smp values of the samples of voltage and current stored by pressing SAVE DATA SIZE dimensions of the data saved in the instrument memory 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 SSS 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 F3 to cancel the last recording effected F4 to cancel all the recordings effected e ESC to quit this mode EN 73 A AMPROBE DMIII MULTITEST 12 CONNECTING THE INSTRUMENT TO A PC In order to connect the instrument to a PC you must connect the Optical serial cable code C2001 shipped with the instrument to a PC COM port The available transmis
7. Conduct a direct Energy measurement without memorizing v Memorize by pressing the SAVE key the sampled values of the Parameters present at instrument input generating a Smp record inside instrument memory It will be possible to analyze the memorized data ONLY by transferring it to a PC v Record simultaneously pressing the START key after a proper set up RMS values of voltages currents corresponding harmonics active reactive and apparent powers power factors and cos active reactive and apparent energies voltage anomalies voltage sag and surge with 10ms resolution It will be possible to analyze the recorded data ONLY by transferring them to a PC WARNING Please note the difference between memorize and record These terms q 4 will be used repeatedly in this manual Please focus on their definitions and distinctions EN 6 A AMPROBE DMIII MULTITEST 3 PREPARATION FOR USE 3 1 INITIAL CONTROL This instrument has been checked mechanically and electrically prior to shipment Care has been taken to ensure that the instrument reaches you under safe conditions You are recommended however to carry out a rapid check to detect any possible damage which might have been caused during transport Should this be the case immediately contact Amprobe Also check that the packaging contains all the parts listed under paragraph 14 5 In case of discrepancies contact the dealer In case you have to send the inst
8. Connection of the test leads during LOWQ test If the cables supplied with the instrument are not long enough for the measurement you can extend the black cable Short circuit the test leads making sure that the conductive parts of the alligator clips make a good contact to each other Press the START key If the display doesn t show 0 00Q repeat the test leads calibration see paragraph 6 1 1 Connect the instrument terminals to the ends of the conductor under test see previous picture If the mode RT or RT was selected use the F3 F4 keys to set the duration of the test Press the START key The instrument will execute the measurement In RT RT Timer mode you can press START key again if you want to stop the test before the duration set is expired ATTENTION Never disconnect the test leads when the message Measuring is displayed EN 16 A AMPROBE DMIII MULTITEST 6 1 3 Results of AUTO mode At the end of the test if Average resistance value the average resistance nn Ravg value Ravg is lower than 5Q the instrument emits a double sound signal indicating the 1 e 050 Resistance values and positive outcome of Ri RE corresponding test currents the test and displays a 1 07Q 1 03Q obtained after exchanging so 219 219mA the polarities of test leads screen similar to the Tie a screen to the right eke aie FUNC CAL we The displayed result
9. EN 21 A AMPROBE DMIII MULTITEST Systems SELV or PELV 250VDC gt 0 250MQ CEI 64 8 6 Systems up to 500V Civil installations 500VDC gt 0 500MQ Systems over 500V 1000VDC gt 1 0MQ CEI 64 8 4 Floor and wall insulation in civil installations 500VDC gt 50kQ se V lt 500V Floor and wall insulation in systems over 500V 1000VDC gt 100kQ se V gt 500V EN60439 Electrical panel boards 230 400V 500VDC gt 230kQ EN60204 Electrical equipment of machines 500VDC gt 1MQ So lt 1MO if the floor is at least 1 year old CEI 64 4 Floor insulation in medical rooms 500VDC lt 100MO ifthe floor is at least year old Table1 Table reporting the test voltage and the corresponding limit values for few Guidelines 50VDC 99 9MQ 100VDC 199 9MQ 250VDC 499MQ 500VDC 999MQ 1000VDC 1999MQ Table2 Table of maximum resistance values which can be measured under MQ mode depending on the rated voltage selected 6 If the TMR mode was selected use the F3 F4 keys to set the duration time of the test ATTENTION Never disconnect the test leads from the circuit under test when the message MEASURING is being displayed as the circuit under test may remain charged at a dangerous voltage The instrument has an internal safety resistor which is connect to output terminal before the end of the test in order to discharge the parasite capacities of the installation pend 7 Press
10. Ea3 Values of the inductive reactive energy total of phase 1 aaa a phase 2 and phase 3 Single phase Eri1 Erc1 Values of the capacitive reactive energy total of phase 1 phase 2 phase 3 3 wires Erit Erct 4 wires Erit Eri1 Eri2 Eri3 Erct Erc1 Erc2 Erc3 Est Es1 Es2 Es3 Values of the Apparent Energy total of phase1 phase2 and phase3 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 45 A AMPROBE DMIII MULTITEST 7 3 POWER QUALITY FUNCTIONS Fora simple usage the main working mode of the POWER QUALITY function F4 can be selected by means of F3 and F4 VOLTAGE function to be used to display voltages and corresponding harmonics see paragraph 7 4 CURRENT function to be used to display currens and corresponding harmonics see paragraph 7 5 POWER function i
11. 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 101 gt Miramar FL Phone 954 499 5400 Fax 954 499 5454 www amprobe com ADVANCED TEST PRODUCTS YAMUMOO04ATO
12. More than 63 parameters have been selected harmonics Deselect some values included or More than 38 parameters with CO GENERATION Flag enabled Too many records The quantity of recorded data Smp exceeds the Cancel some recordings after transferring maximum allowed 35 them to a PC No Unit selected ERR SEQ The Phase Sequence isn t correct Check the Phase Sequence connection ERR P The active powers shown on the right side of the message If there isnt a situation of co generation are negative check if the clamps are properly connected ERR SEQ amp P The active powers shown on the right side of the message If there isn t a situation of co generation are negative and the Phase Sequence isn t correct check if the clamps are properly connected check the Phase Sequence connection ERR CONNECTION The instrument has detected a wrong connection to Voltage inputs Check the Voltage connections Error Vref The user set a Voltage reference not compatible with Check Voltage Reference set in CONFIG voltage at instrument s input RECORDER ERR SYNC The System Frequency is out of range Check the System Frequency check setting in ANALYZER CONFIG Error1 Error 5 Contact assistance EN 100 A AMPROBE DMIII MULTITEST 18 APPENDIX 2 RECORDABLE PARAMETERS SYMBOLS Symbol Description V1 V2 V3 RMS value of the voltage of phase 1 p
13. SAVE to save in the instrument memory a record of Smp type containing the instantaneous values of voltage and current present at the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of displayed data All previous functions remain however available When the HOLD function is activated the word is displayed When this function is enabled it s not possible to record nor perform energy measurements This function is disabled during a recording or an energy measurement MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 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 EN 53 A AMPROBE DMIII MULTITEST 7 5 3 HARM mode By selecting the HARM mode one of the screens below will be displayed according to the settings made The screens show the harmonics of the phase currents 2109 00 T33 12 2109 00 L73 9712 Example of screen in Example of screen in 3 single phase mode wire or 4 wire 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 50Hz
14. TEST INSULATION RESISTANCE MEASUREMENT The measurements comply with IEC 61557 2 and VDE 0413 part 1 ATTENTION Before performing an insulation test make_sure that the circuit under test is not energised and all the loads are disconnected ay Turn the rotary knob to the INSULATION TEST position PHA The F1 key allows the operator to select one of the following measuring modes MAN mode Manual mode Recommended test TMR mode Timer mode test duration depends on the selected interval from 10 to 999 seconds This test can be executed when the test required a defined duration 6 2 1 Measurement Procedure 1 Select the desired mode using the F1 key 2 Connect the test leads to the instrument input terminals T1 and T4 respectively i qi 0 0 Ti T2 T3 vi Oo c A T4 Example insulation measurement between phase and earth in an electrical installation using untied cables 3 If the cables supplied with the instrument are not long enough for the measurement you can extend the black cable 4 Connect the instrument terminals to the object that is to be submitted to the insulation test after de energizing the circuit under test and all the relative loads see previous picture 5 By means of F2 select the test voltage suitable for the type of test to be performed see Table1 The values to be selected are 50V test on telecommunication system e 100V e 250V e 500V e 1000V
15. can be stored by pressing the SAVE key twice refer to paragraph 9 1 6 1 4 Results of RT and RT modes f a resistance value Max Resistance value of RT or_RT lower than ee or R 5Q is detected the instrument emits a Test current double sound signal 1 072 ae indicating the positive outcome of the test displays a screen similar to the screen to the right Duration of the Test 219mA RT 0 11Q TIME 10s FUNC CAL t Lv Note We recommend the use of alligator clips and to assure the alligator clips make good contact with the conductor under test Indeed in this test the instrument gives as a final result the maximum measured value of R or R and using test leads instead of alligator clips could give you faulty results due to faulty contact between the test leads and conductor under test we The displayed result can be stored by pressing the SAVE key twice refer to paragraph 9 1 EN 17 A AMPROBE DMIII MULTITEST EN 18 A AMPROBE DMIII MULTITEST 6 1 5 AUTO RT RT faulty cases f the instrument detect the External Power supply adapter connected to instrument will show the message displayed to the right Ifthe terminal voltage is higher than 15V the instrument does not perform the test and displays the screen to the right for 5 seconds In the case that RcALIBRATION gt RMEASURED the instrument displays the screen t
16. ch ci ce ceca ental atc mec arai ara aane aaeoa N aE EErEE NA eaa E EEE A 70 1 ee MENU Key aa E O NOA 70 10 2 2 Rotary Switch during a recording estesi aiaia aE aa asd lan daa lnk 71 10 3 Stopping a Recording Energy Measurement cineca casssscaseciostacassmceduscenetavacemceaiianned catccoccadlcened thespetateernedecuereeiccens 71 TLANSTRUMENT S MEMORY i sccsietesiseceitstiesnatscsencanitiecussiscecsensiitensticsseessnsisetadatdascucsndiannasinibenssnlcaaratindedbacieiaeats 72 11 1 SAFETY TEST WIEMOR Y seg siesiccicsncs ace ecco tagiasteact caseascey sueaacheieced atguacdatchaceancadsheaacinseptaranadiaacera ease izetadecaes tetas ieee 72 112 ANALYZER MEMOR Neh steaks cee a ei 73 12 CONNECTING THE INSTRUMENT TO A PG scsssiicscscscatncatsisisicastenvennttnaestarteunmuathanntvalnanuasinasivniaatensinninnents 74 Ded PRU IAIN ics oss zca cna encase eiaces asad tecdcsascd sane sca asacansa aca netsmicaatadakehushl deacadhedas pesavebensneeapsetaiecad unis 75 13 1 General ISICON sesccnciccrzeteancsturcsescaesses seteatensnesadiansenstndeeansceanedenbantietaaraatansnndtiaeddfautiaatadadstadianaen mstaeeddeaentienabe 15 13 2 Battery Replaceme Nt sais seca chcee st soca cack eka a esate accent au dees E e eaS vedere ett ie eia ie 75 13 3 Instr ment Cleaning eer mene ee eee ere one a E E A E E raai eiea 75 14 TECHNICAL SPECIFICATIONS cccccscssscscsesesensnssssssssseeseseeeeeeneeeeeeeeeseeeseeesesasasaeaeaeaeeeenineeeneseeeeees 76 Mee MMe
17. collector or node d Auxiliary external masses to the earth terminal ALLOWABLE VALUES The standards CEI 64 8 6 do not give any indication on the maximum resistance values that cannot be overcome in order to be able to declare the positive outcome of the continuity test The standard CEI 64 8 6 simply requires that the instrument in use warn the operator if the test was not carried out with a current of at least 0 2 A and an open circuit voltage ranging from 4 V to 24 V The resistance values can be calculated according to the sections and lengths of the conductors under test anyway if the instrument detects values of some ohm the test can be considered as passed 16 2 Check of the Circuit Separation PURPOSE OF THE TEST The test to be effected in case the protection is realized through separation 64 8 6 612 4 SELV or PELV or electrical separation shall check that the insulation resistance measured according to the indications below depending on the separation type complies with the limits reported in the table relative to the insulation measurements INSTALLATIONPARTS TO BE CHECKED e SELV system Safety Extra Low Voltage v Measure the resistance between the active parts of the circuit under test separate and the active parts of the other circuits v Measure the resistance between the active parts of the circuit under test separate and the ground The resistance shall not be lower than 0 25MQ with a test voltage
18. improper use may damage the apparatus or its components O AC Voltage or Current f SA _ Unidirectional pulsating Voltage or Current A XF Rotary switch of the instrument AA 1 2 PRELIMINARY INSTRUCTION This instrument has been designed for use in environments with a pollution level 2 and up to and no more than 2000 meters altitude It can be used for Safety Test on Installation with Over voltage Category Ill 300V phase to earth and for voltage and current measurements on installations with over voltage category IIl 600 V phase to phase 300 V phase to earth or CATII 350 V phase to earth EN 4 A AMPROBE DMIII MULTITEST Please keep to the usual safety standards aimed at Protecting against dangerous currents Protecting the instrument against incorrect operations 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 Do not take measurements on circuits exceeding the specified current and voltage limits Before connecting cables alligator clips and clamps to the circuit under test make sure that the right function has been selected Do not take any measurements under environmental conditions beyond the limits specified in paragraph 14 4 Check that batteries are not weak and are installed correctly Before connecting test leads to the circuit und
19. 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 38 A AMPROBE DMIII MULTITEST 7 2 BASIC SETTING RECORDER CONFIG Place the rotary switch in the POWER QUALITY position press the MENU key using the F1 F2 keys select the RECORDER CONFIG item and press the ENTER Key This option allows you to check and eventually modify the recording parameters and the selected parameters up to a maximum of 62 Frequency If the number of selected values exceeds 63 the message eEUNAesiuy will be displayed The RECORDER CONFIG 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 In
20. including the resistance of the calibration the continuity test is executed by the instrument with a test current higher than 200mA If the resistance is higher than 5Q the continuity test is executed by the instrument with a current lower than 200mA We recommend that you check the calibration of the test leads before executing a measurement according to next paragraph EN 13 A AMPROBE DMIII MULTITEST 6 1 1 Calibrating the test leads CAL Mode 1 Connect the black and yellow test leads to T1 and T4 input terminals respectively 0 5 6 OF Ou On OM Connection of instrument terminals during calibration procedure 2 If the test leads supplied with the instrument are not long enough for the measurement you can extend the black cable 3 Short circuit the measuring cable ends making sure that the conductive parts of the alligator clips make good contact with each other see previous picture 4 Press the F2 key The instrument performs the calibration WARNING Never disconnect the test leads when the message MEASURING is displayed LOWQ 05 06 01 A numerical value in this field means that the instrument has been Q calibrated this value remains on Da R the display for ERN AS any further jee measurement even though the AUTO 0 11Q unit is switched off and on again FUNC CAL 5 At the end of the test the result is stored and used as OFFSET that is to say that it i
21. instrument see paragraphs 7 1 and 7 2 Particularly the 3 wires mode must be set Rotate the switch to the position corresponding to the type of analysis desired Connect the phase and neutral voltage wires following the connections shown in the picture above To measure current and power connect the clamp to the phase conductor following the specifications shown on the clamp and the connections shown in the picture above 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 a time check if a The phase sequence is correct see paragraph 7 4 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 s not lower than 0 4 If the Pf is lower than 0 4 check if the phase voltage is associated to the right clamp meter ex the voltage of phase 1 must be associated to the clamp n 1 EN 65 A AMPROBE DMIII MULTITEST d After checking and if needed modifying the connection of the instrument to the equipment re set the 3 wires mode and the connections shown in the picure above yellow and red wires together 5 Energize the electrical equipment under test 6 The values of the available electrical parameters will be displayed of the instrument For further details see the paragraph relevant to the position
22. is not represented in scale along with the other harmonics in order to maximise 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 active F3 F4 to move the cursor of the selected harmonic leftwards and rightwards respectively At the same time the values related 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 F1 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 F2 to display the page of the harmonics h01 h24 h24 symbol or the page of the harmonics h25 h49 h49 symbol ESC to return back to METER mode see paragraph 7 5 2 SAVE to store in the instrument memory a record of Smp type and the instantaneous values of voltage and current present at the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of displayed data All previous functions remain however available When the HOLD function is activated the word g MB is displayed When EN 54 A AMPROBE DMIII MULTITEST this function is enabled it s not
23. memory a record of Smp type containing the instantaneous values of voltage and current present at the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of displayed data All previous functions remain however available When the HOLD function is activated the word is displayed When this function is enabled it s not possible to record nor perform energy measurements This function is disabled during a recording or an energy measurement MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 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 EN 60 A AMPROBE DMIII MULTITEST 7 7 ENERGY FUNCTION This function permits to display the values of phase and total active powers phase and total capacitive and inductive reactive powers power factors and phase and total coso Furthermore the instrument is able to measure directly see 7 7 2 the values of phase and total active energies and the values of phase and total capacitive and inductive reactive energies 7 7 1 Symbols The position ENERGY has one working mode v METER This mode will be described in detail in the next paragraphs The symbols used are described below Sy
24. of the active power total of phase1 phase2 and phase3 l f PE PUPE Ea only for 3 wires EAEN value of the power measured Single phase P1 Pia Pae by the Wattmeter 1 2 and 3 2 respectively 3 wires Pt 4 wires Pt P1 P2 P3 Values of the inductive reactive power total of phase 1 Qti Q1i Q2i Q3i 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 Single phase Q1i Q1c 3 wires Qti Qtc Values of the capacitive reactive power total of phase 1 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 S12 phase3 Single phase 1 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 cee ee phase 3 respectively Single phase Pf1 dPf1 3w Pft dPft Values of the cosq 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 Ea1 Ea2 Ea3 Nene of the active energy total of phase1 phase2 and 3 wires Eat p 4 wires Eat Ea1 Ea2
25. 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 modify the values of the basic parameters see paragraphs 7 1 and 7 2 b Check and eventually 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 paragraph 10 1 EN 66 A AMPROBE DMIII MULTITEST 9 SAVING RESULTS The SAVE button can be used to store the displayed results related to the rotary switch position v SAFETY TEST LOWQ Insulation Test Phase sequence Ground Test pressing this key the instrument will store the displayed result generating a corresponding record in the SAFETY TEST MEMORY see paragraph 11 1 POWER QUALITY pressing this key the instrument will store the displayed result generating a Smp record in the ANALYZER MEMORY see paragraph 11 2 Please note that Saving results is different from recording 9 1 SAVING SAFETY TEST RESULTS After a SAFETY TEST LOWQ Insulation Test Phase sequence Ground Test the user can press the SAVE button to store the displayed result The _ REMINDER PLACE parameter isn t related to Memory Location Measurement Order A Number and can help the user to remind the place OK SAVE ESC where he performed the measurement REMINDER PARAMETER REMINDER PLACE 009 i SAVE IN LOC 006
26. per R lt 5Q Test leads included Open Circuit Voltage 4V lt VO lt 24V INSULATION TEST Test Voltage V Range MQ Resolution MQ Accuracy 50 a P za eor 2 Reading 2 digit 50 0 99 9 0 1 5 Reading 2 digit 100 o A soo 2 Reading 2 digit 100 0 199 9 0 1 5 Reading 2 digit 0 01 9 99 0 01 a 10 0 199 9 0 1 2 Reading 2 digit 200 249 1 250 499 1 5 Reading 2 digit 0 01 9 99 0 01 Sa 10 0 199 9 0 1 2 Reading 2 digit 200 499 1 500 999 1 5 Reading 2 digit 0 01 9 99 0 01 id d 10 0 199 9 0 1 2 Reading 2 digit 200 999 1 1000 1999 1 5 Reading 2 digit Open circuit Test Voltage Short Circuit Current lt 1 3 x Nominal Test Voltage lt 6 0mA with 500V Test Voltage Nominal Test Current 500V gt 2 2mA with 230kQ other gt 1mA with 1kQ Vnom FREQUENCY MEASUREMENT Range Hz Resolution Hz Accuracy 47 0 63 6 0 1 0 1 Reading 1 digit RCD and LOOP function are active only for 50Hz 0 5Hz frequency PHASE ROTATION VOLTAGE MEASUREMENT Range V Resolution V Accuracy 0 460V 1 3 Reading 2digit e GROUND TEST RESISTANCE MEASUREMENT WITH EARTH RODS Range RE Q Resolution Q Accuracy 0 01 19 99 0 01 20 0 199 9 0 1 5 Reading 3 digit 200 1999 1 Test Current lt 10mA 77 5Hz Open c
27. 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 this page and proceed inside the Menu the Menu keeping the settings made Press ESC to leave this page without modifying the existing parameters Use the multifunction keys 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 this page 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 DMIII MULTITEST From 2 page of RECORDER CONFIG MENU ENTER Use the multifunction keys F1 F2 to position the cursor on the desired RECORDER CONFIG word and use the multifunction keys F3 F4 CURRENT to modify the value or TN select deselect the desired parameter it s HARM REC Pg ON selected if marked in black Press ENTER to confirm Press ESC to leave the Menu without modifying the existing settings Example of 3 page If you want to change Current Harm Selection place Cursor on the corre
28. possible to record nor perform energy measurements This function is disabled during a recording or an energy measurement MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 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 EN 55 A AMPROBE DMIII MULTITEST 7 5 4 WAVE mode By selecting the WAVE mode one of the screens below will be displayed according to the settings made The screens show the waveform of the phase currents 21209 00 Lis sos 12 2109500 Le 35312 Example of screen in Example of screen in 3 single phase mode wire or 4 wire three phase mode The symbols used are described in Tab 2 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are active F1 only for three phase mode to display the values related to the following phase 7 ESC to return back to METER mode see paragraph 7 5 2 amp SAVE to save in the instrument memory a record of Smp type containing the instantaneous values of voltage and current present at the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of displayed data All previous functions remain however available When the HOLD function is activated the word is disp
29. significant data The chosen method is that of integration after a certain period called integration period which can be set from 5 seconds to 60 minutes 3600sec the instrument extracts from the sampled values the following data 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 memorised 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 9 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 indep
30. 00 kVARh Eril 0 000 kVARh Esl 0 000 kVAh P1 36 38 kW g 6 375 KVAR 1 36 94 KVA Meas Time 00 00 00 27 09 00 17 35 12 ENERGY THREE PHASE Eat 0 000 kWh Erct 0 000 kVARh Erit 0 000 kVARh Est 0 000 kVAh Pt 36 38 kW gt 6 375 KVAR t 36 94 kVA Meas Time 00 00 00 27 09 00 1735 12 ENERGY THREE PHASE Eat 0 000 kWh Erct 0 000 KVARh Erit 0 000 kVARh Est 0 000 kVAh Pt 167 7 kW Qt 30 47 KVAR t _ 170 4 kVA Meas Time 00 00 00 Meas PG PG Meas PG PG ChgP Meas PG PG Example of screen in single phase mode Example of screen in 3 wire three phase mode The symbols used are described in Tab 4 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are active s F2 Example of screen in 4 wire three phase mode 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 memorised If the active power is negative the counters will not increase only for 4 wire measurement to display the following screen On the basis of the settings made as per paragraph 7 1 following screens are displayed cyclically total three phase values values of phase 1 phase 2 and phase 3 F3 F4 SAVE to pass to previous next function respectively to save in the i
31. 1 Es2 Es3 The RESET command will not erase the instrument s memory EN 12 A AMPROBE DMIII MULTITEST 6 SAFETY TEST FUNCTIONS 6 1 LOWQ CONTINUITY TEST WITH 200mA TEST CURRENT The measurement is taken according to EN 61557 2 and VDE 0413 part 4 WARNING Before carrying out the continuity test be sure that there is no voltage at the ends of the conductor under test A vow lt C gt Turn the rotary knob to the LOWQ position F1 This key allows the operator to select one of the following measuring modes AUTO mode the instrument carries out two measurements with reversed polarity and displays their average value This mode is recommended for the continuity test RT mode measurement with positive polarity and the ability to set the duration time of the test In this case the operator can set a measuring time long enough to permit them to move the protective conductors while the instrument is carrying out the test so as to detect any bad connections RT mode measurement with negative polarity and the ability to set the duration time of the test In this case the operator can set a measuring time long enough to permit him to move the protective conductors while the instrument is carrying out the test so as to detect any bad connection F2 This key permits the operator to perform a calibration compensation for the resistance of the cables used for the measurement N B If the resistance is lower than 5Q
32. 1 2 3 Phase Reactive Power n 1 2 3 Phase Power Factor n 1 2 3 n nN Q S P Total Active Power Total Reactive Power Qor Q Q O Total Apparent Power P SEN TOT Total Power Factor Pror Sror where Vnn RMS value of voltage between phase n and Neutral In RMS value of n phase current fr Phase displacement angle between voltage and current of n phase EN 94 A AMPROBE DMIII MULTITEST In presence of distorted voltages and currents the previous relations vary as follows Phase Active Power n 1 2 3 P Vi Lin O8 Pi k 0 Phase Apparent Power V I n 1 2 3 Phase Reactive Power Q y n 1 2 3 no n n Phase Power Factor P n 1 2 3 Pp n S n Distorted Power Factor dPFn C0Sf1n phase displacement between the n 1 2 3 fundamentals of voltage and current of n phase Total Active Power Pror P P P Total Reactive Power Qor Q Q O Total Apparent Power 2 2 PE S TOT P Tor Qror ens TOT Total Power Factor P Sror where Vkn RMS value of kth voltage harmonic between n phase and Neutral Ikn RMS value of kth current harmonic of n phase fkn Phase displacement angle between kth voltage harmonic and kth current harmonic of n phase 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
33. 2 107V V2 3 0 V V3 1 107V v PHASE DOUBLED GC 4J PHASE ROTATION Two phases are connected together THE PREVIOUS RESULTS CANNOT BE SAVED In the mode if the voltage of one or more phase is too low one or more phases has a low voltage the instrument will show a screen similar to the along side displayed LOOP 05 06 01 123 FRQ 60 0HZ V1 2 391V V2 3 OV V3 1 OV NOT CORRECT Phase Sequence not correct Message LOW Voltage Phase T means that Phase T has a low voltage value Similar message for Phase R and S EN 28 A AMPROBE DMIII MULTITEST This result can be stored pressing the SAVE key twice refer to paragraph 9 1 EN 29 A AMPROBE DMIII MULTITEST 6 4 GROUND TEST SOIL RESISTANCE AND RESISTIVITY MEASUREMENTS vAy Turn the rotary knob to the GROUND TEST position es y F1 The F1 key permits to select one of the following measuring modes which can be shown cyclically when pressing the key Mode 2 W the instrument measures the resistance between 2 points Mode 3 W the instrument measures the resistance using two auxiliary earth rods Mode p the instrument measures the ground resistivity ATTENTION yn Never disconnect the test leads from the circuit under test when the message MEASURING is displayed 6 4 1 Measurement procedure and results of 2 W and 3 W m
34. 21209400 2160900 Example of screen in Example of screen in 3 Example of screen in 4 single phase system wire three phase system wire 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 50Hz 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 harmonics therefore represented under the horizontal axis indicate that such voltage harmonics are generated by the load Following keys are active Se 4 F3 F4 F1 F2 ESC SAVE ENTER HOLD to move the cursor of the selected harmonic leftwards and rightwards respectively At the same time the values related 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 symbol h24 or the page of the harmonics h25 h49 symbol h49 to return back to METER mode see paragraph 7 4 2 to save in the instr
35. 3 or V32 RMS value of phase to phase voltage V31 Vpk1 Vpk2 Vpk3 peak value of voltage phase 1 phase 2 phase 3 and phase to Vpk12 Vpk32 phase voltage 12 and 32 respectively h01 h49 Harmonic 01 Harmonic 49 ThdV Factor of total harmonic distortion of voltage freq Network frequency Phseq Phase sequence indicator 123 correct 132 inverted 023 null voltage on black wire 103 null voltage on red wire 120 null voltage on blue wire 100 null voltages on red and blue wires 020 null voltages on black and blue wires 003 null voltages on black and red wires Tab 1 Symbols used in VOLTAGE function EN 47 A AMPROBE DMIII MULTITEST 7 4 2 METER mode By selecting this function the instrument selects automatically the METER mode corresponding to one of the screens below according to the settings made as per paragraph 7 1 21 009 007 1235212 27 20900 2 L T2353 12 Z 10950100 Le 8 be2 Lee SINGLE PHASE VOLTAGE VOLTAGE VOLTAGE V12 384 2 V V1 230 2 V V1 230 2 V v32 385 4 V V2 230 5 V Vpk1l 325 5 V v31 383 7 V v3 230 6 V Thdv 0 0 freq 50 0 Hz V12 384 2 V freq 50 0 Hz V23 385 4 V v31 383 7 V freq 50 0 Hz Phseq 123 HARM WAVE PG PG HARM WAVE PG PG HARM WAVE PG PG Example of screen in Example of screen in 3 Example of screen in 4 singl
36. AEN 8 C ES olele ac cee EE EE EE E eet E cates Eker 8 4 INSTRUMENT DESCRIPTION ccccssssssssssssseseseseseseseeseeeeeeeeaeaeaeaeseaeaeaeeaeeeeseeeseeeseseseseseeeseseseseeeenenenss 9 4 1 Display Description 5 5 cezedeaiesestii2hcs csthevnsddsdantlsaasteasssildosseassevdiacad sedediastadatathdvearnagbeisdiaiendt hastens ieeadaderiendiianins 10 4 2 Mial Sore IN ecstacy gS PA ekg a A tea unc E Sea natal TAR EAE 10 4 3 Backlight UMN OO case ccs tea ata cael iA cvaesch amrceia cde eed ees cacbeas bane chads ECAN ENE P Ea E EEE Eaa 10 5 INITIAL SSE TUNG gc psescac ceases sca ss crac ces apeinsstanesins kt eiwendscuascacksnckeassadcepasseaicians nianasstdnieaneedtiGdastomneiestbaceoees 11 5 1 How To Adjust The COMMAS ss cceiccacesnacsscainsecacseracnsinssaceansseacoaesseinncasscaccaeis la hanehiaaeasesdadeeaenicaeaiiecdcnuaennkensepecnamndeeds 11 5 2 How To Set Date And Time scicsscipussiinscisncnsdnaapanscsicicarsntneadeisansicud hecensavaegbnbshinan nceptineasihaapanstsausbaieniarebachaigeanenbineicicnd 11 5 3 How To Set The Language ssessssseeesssresssstreesstreesntteesstteentteetntteenttennttet cee ea ected SSR eRe endea ta eect 11 5 4 How To Adjust The CUMIN cscs isinara pna lee ea aces cla cee ta eae TE EE REEERE 11 55 RESE I eta ened acacia E E R REA A R E 12 6 SAFETY TEST FUNCTIONS cicizsca sec ctees ci aveiossiatt toesearsensstscasnshancanassnseecanteaiecaniaancssetiniannstinigerstammannnacioets 13 6 1 LOWQ Continuity Test
37. AMPROBE DMIII MULTITEST 3 Power Quality Recorder Ground Resistance Tester Megohmmeter Fi F2 F3 F4 INSULATION TEST Q LOWQ aAa mainea s POWER QUALITY DMIII Multi Test A fats A TA j eA i g F pan ae g Copyright Amprobe 2005 CE ME User s Manual A AMPROBE DMIII MULTITEST INDEX 1 SAFETY PRECAUTIONS AND PROCEDURES ccsssssssssssssssssssssssessssssseseseesesseesesesseasaeanneeonieieneieeeaees 4 AV ONWANGS s einne e a a e a a ata E E e E E 4 1 2 Preliminary Instruction aces setae ee coos tetas ceon cde tecastanedidncacnceeck nicedededneaicttacoensesatech pttcenteeducactasatdennteetedic ciceciacs 4 1 3 During Clee eee ne ene ee one ene eT ene ne pr ee tere ner rer ene en eT ae nese mrr re rte nre eer ae enter ee eee 5 14 After USC sce sssscscsexsess cxanetcascaescsers cuzunassendscashabatcase passa vacutdedeaen dst aa Ra a EAAS aa AAEE nu Eaa E ERAEN 5 2 GENERAL DESCRIP TION ssi ccatessiats cscs ccs ctcateticascarunaicsaitsnicesienstea tetas tea eee 6 2 Lic IMMOGUCHON E ae seandiveants E T nanaeliseoatentens taal nnaten ania T 6 Lids FUNCIONS veieien A a E e eee Sactsiosdsucaabass eolundeqessydn shel sn oseucgevast velsassyaasslschelodoodendsausdsohenss 6 3 PREPARATION POR USE issii in ateriaan antaa taas aaar da a eaaa raea aa aaa T Kar aaae TAa ai 7 ZA mnitial Control sespersona a E T EaR 7 92 Power SUPP chases hype a a a E NE 7 33 Calibrations ees eE lt gine ata deg oc E E
38. CAVA CeM Mee MUR Sa eien cod cath a ees aa eee cae tte cet sek abate sek twee ca atacand eshte ced eae 76 14 1 1 Safety Test FUNCHIONS oo eceseeseceseseesesneeeenssnssesntsnestesesussteatsusseeessueseeassuseteassusseeassueseeasseseeasseeaeeassneaeeassieseessneneeesseaes 76 14 1 2 POWER QUALITY FUNCTION oe eeceseeestesteseeesneseeeesneeeeeesueeeesesueseeessueseeessueeteassueeteassesteassnseeeessieseeessneeetssnesetessneneeessntees 77 142 Slada Sen e eadeeteiaiaeniasveats neice ateeteastaciasaes 78 142 Ale E NE re E E A E E A E E E T T 78 14 22 Galy Toile aE e A aE caviar EEEa NE Ei eE A EEEE 78 14 2 3 POWER QUANT Vee aasctescetec eats teste te tac a a E E E a Sele erat 78 14 3 General Specifications ccsssesscsessssssessssesssessesesssssssscsnsnsscesessesucssessusassusesscsseasansucaceceusassusacesesessnsucaceseesaesnees 79 14 3 lt 1 Mechanical Data vets arava iratdteale a wend weave wend iva wand Grea wand nea wand weaearanta ity 79 14 32 POWER SUDDIV cats cexeity inkan seiniin nainii aritna niaaa iain iea aieiaa aeai eara a aetna een een sed aai atin Ee 79 TES 3s DEI aeai EEA GEE EE T ESA A AA EEE NE EO AAR 79 Ac AMEMO niaaa T EEEE EES TATAEE ENOAR ATE EA 79 14 4 V0 18 2h penne tere eere erro rere nee rere rce Te Pe AMAN ee EKAMAN KEAMEN eer Pree Pee er err roe arree ant 79 TAS ACCESSORIES ss asesssstscosncscassans tnscosns ceneaitsctucasedseqesued inensendueansetiatasenndangnsanateanaendcsasantdchuiaensereniinsceeuacnaibetiabaaviannde
39. DMIII MULTITEST LEGENDA 1 Fundamental 2 Third Harmonic 3 Distorted Waveform Effect of the sum of 2 multiple frequencies In the mains voltage the fundamental has a frequency of 60 Hz the second harmonic has a frequency of 120 Hz the third harmonic has a frequency of 180 Hz and so on Harmonic distortion is a constant problem and should not be confused with short 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 stopping 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 40 2 V h 2 1 THDv This index takes all the harmonics into account The higher it is the more distorted the waveform gets EN 92 A AMPROBE DMIII MULTITEST 16 7 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 i
40. H 33H 10 2 digit 0 1V 0 1A 34H 49H 15 2 digit Harmonics values are null under fixed threshold DC its values is null if it is lt 2 of Fundamental or is lt 2 of Full Scale clamp 1 Current Harmonic its values is null if it is lt 0 2 Full Scale clamp 2 49 its values is null if it is lt 0 5 of fundamental or is lt 0 1 of Full Scale clamp EN 77 A AMPROBE DMIII MULTITEST 14 2 STANDARDS 14 2 1 General Safety EN 61010 1 A2 1997 Protection classification Class 2 Double Insulation Pollution degree 2 Degree of Protection IP50 Over Voltage Category CAT II 600V 350V phase earth CAT III 6 00V 300V phase earth Usage Indoor max height 2000m EMC EN61326 1 1997 A1 1998 The Instrument comply with European Guidelines for CE mark 14 2 2 Safety Test LOWO 200mA IEC 61557 4 INSULATION TEST IEC 61557 2 PHASE SEQUENCE IEC 61557 7 GROUND TEST IEC 61557 5 14 2 3 POWER QUALITY Voltage Sag and Surge EN50160 Alternating Current Static Watt hour meters for Active Energy EN61036 CLASS 2 Alternating Current Static VAR hour meters for Reactive Energy IEC1268 CLASS 3 EN 78 A AMPROBE DMIII MULTITEST 14 3 GENERAL SPECIFICATIONS 14 3 1 Mechanical Data Dimensions Weight 14 3 2 Power supply Batteries Battery Life External Power Supply Adapter only for POWER QUALITY function 14 3 3 Display Display Type Resolution Visible Area
41. ION The maximum voltage between V1 V2 V3 COM inputs is 600 V CATII yn 350V phase to earth or 600V CATIII 300 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 own safety Instrument connection in a three phase 4 wire system Check and if needed modify the basic settings of the instrument see paragraphs 7 1 and 7 2 Particularly the 3PH4W mode must be set Rotate the switch to the position corresponding to the type of analysis desired Connect the phase and neutral voltage wires following the connections shown in the picture above 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 the picture above In case of doubts select the position POWER and connecting one clamp a time check if a the phase sequence is correct See paragraph 7 4 2 b the active power P of each phase is positive If its 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 s not lower than 0 4 In case the Pf is lower than 0 4 check if the phase voltage is associated to the right clamp meter for example the voltage of phase 1 must
42. T 16 PRACTICAL REPORTS FOR ELECTRICAL TESTS 16 1 Continuity Test On Protective Conductors PURPOSE OF THE TEST Check the continuity of protective conductors PE main equalising potential conductors EQP secondary equalising potential conductors EQS in TT and TN S systems neutral conductors having functions of protective conductors PEN in TN C system NOTE This test is to be preceded by a visual check verifying the existence of yellow green protective and equalizing potential conductors as well as compliance of the sections used with the standards requirements INSTALLATION PARTS TO BE CHECKED Equalsing potential Connect one of the test lead to the protective conductor of the FM socket and the other to the equalizing potential node of the earth installation Connect one of the test lead to the external mass in this case the water pipe and the other to the earth installation using for example the protective conductor of the closest FM socket Examples for continuity measurement on conductors EN 82 A AMPROBE DMIII MULTITEST Check the continuity among a Earth poles of all the plugs and earth collector or node b Earth terminals of class instruments Boiler etc and earth collector or node c Main external masses water gas pipes etc and earth
43. a aN aaa EAA Aa aae Saa EAA EAEAN NEE aaa 93 16 7 3 Presence of harmonics CAUSES iiin noanoa tens aan eha KAE Taada aAa Naana aasa 93 16 7 4 Presence of harmonics consequences c ececseccseesesessesestesesesecseeeesesesesesseeceseacsueacaeeceaeansassceeseaeaneaseeeteteatanensaeeeeaees 94 16 8 Power and Power Factor definition sot ciscicenticsscatahtanscyanspsisndhes seria Seshchteitesdncatieshanatansylncsiesiahd adequate ldanldsancnsbassacaancen 94 16 8 1 Conventions on powers and power factOrs cececcecccessesessssesseeesessseeeecseesesuesceeeseacsnsaceeeceasansuseceeeseasansuseceeeesateneaeeseeeetes 96 16 8 2 3 Phase 3 Wire SYSTEM erna atrial dine gente ine asain denne Chins aaiie aud annta dina aad igdaunnensinn al 97 16 9 Measuring Method UMNO a teat cca ai nccacnancaareerincen alate eased tncanscael piar eee area Recetas 98 16 9 11 Integ ration porod sv tues ine asia i ian ase ennn none Gan nan OOR 98 16 9 2 Power factor Calculations siioni davon aaa aa aaaea aa Oa Naa aAa Aa NOR EEan A Aaaa eaaa 98 16 9 3 Voltage Anomalies and Periods Analysis COMPArISON s sessseeseesesesesessesnesessesnseeseesnseeseesnseesessneetsessntetsatsnteteateneenees 98 17 APPENDIX 1 MESSAGES DISPLAYED scssssssssscssessersessorsesssassersessesssarsessesseaesesoesseseansossersesseassers 100 18 APPENDIX 2 RECORDABLE PARAMETERS SYMBOLG scsssssscssssssssesesssssseesesesserenseeenesassees 101 Release EN 1 00 of
44. aatetaaallas 57 CAE e A E EE EE A AA E ead ined E E E T A 57 6 2 METER MOG Geconi ana a T A 58 6 35 WAVE MOE a aE T S O 60 Tla ENERGY MUMS EAN tinea Sala a E 61 Ae e E E E E N A A E A A E A E E 61 lalale METER MOQ Orensana O O a 62 8 MEASURING PROCEDURES ssscsstecssitesnvsisishtvevenasarinessbadisxchenasssieatnenmnisrniaieinicinmatiaicsdssesennines 63 8 1 Using the instrument in a single phase SV SUSI aeicccies cas aca vcccn step eadeecenscexeactvnan cantata ctanadasbel vedeestaniteabderdeuedtenaaed eins 63 8 2 Using the Instrument in a three phase 4 wire SYSLGM ss ssscsscsseesssecssssessssenessseneseessssessoeeseeninssnaesssensnsesecoeeaes 64 8 3 Using the Instrument in a three phase 3 Wire SYSLCIN i ccccecstescsccseccesesesscesntseszeweencnsessnsecncotssdedsscusseteseestedeseensnes 65 9 SAVING RESULTS satessccce ete cercscteiererrnt thine aisinninande ca V arasa E aE apada ESEA EENES E ENa 67 9 1 Saving Safety Test Results 0 cesessecsesessesteseeseseeseeseeeseeseeeseeseeeseeseeeseenseeseeseeesseensesaeenseeeseeueeteatsnsateatseaeeees 67 9 2 Saving Displayed Values of POWER QUALITY Function ccccecccceseeeeesesestesteeeeteseeessseeeeesneeteiseneeseiseneeeeess 67 10 RECORDINGS ices cascada esac da cadtuc cae actatae aa aA Eiaa Aaaa estan dee tasasthaaetucaeaeeve hanes celaniiae 68 UC IB Sire 2m RECON rre er a eera am rt et oe em Noo ERP EC a A Par ono CaP et eee aera rere eee 68 10 2 D ring FS CUMIN ee
45. age of 5 or more tests effected in different positions at a distance higher than 1 m away from grounded objects EN 86 A AMPROBE DMIII MULTITEST ALLOWABLE VALUES The maximum values of the calculated resistance are the following 1MQ for measurements effected on a new floor 100MQ for the periodical tests effected after the first_year after the floor construction and for the periodical check every 4 year All the values shall be registered on a protocol of the initial tests 64 4 5 1 02 and for the periodical controls on the register of periodical tests 64 4 5 2 02 EN 87 A AMPROBE DMIII MULTITEST 16 4 Ground Resistance Measurement PURPOSE OF THE TEST Check if the Automatic protection is coordinated with the ground resistance value It is not possible to assume a ground resistance value as reference limit when controlling the test result while it is necessary to check every time that the co ordination complies with the requirements of the standards INSTALLATION PARTS TO BE CHECKED The ground installation under working conditions The check is to be effected without disconnecting the earth plates Method for small earth plant Let current circulate between the earth rod and a current probe positioned at a distance corresponding to fivefold the diagonal of the area delimiting the earth equipment Position the voltage probe at half way between the earth rod and the current probe then measure the voltage bet
46. an 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 7 1 and 7 2 The rotary switch position doesn t affect the recording setting The instrument will Start the recording when the Time reach hh mm 00sec MAN mode or when the START Date and Time see paragraphs 7 1 and 7 2 will be reached Before of that the instrument will display the message please wait i 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 result of this elaboration min avg and max 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 temporary memory will not be EN 69 A AMPROBE DMIII MULTITEST elaborated and the corresponding series of values won t be transferred to the definitive memory 10 2 DURING A RECORDING If during a recording the external power supply is de energised the instrument will continue the recording using the internal battery power unti
47. and 7 2 Particularly the single phase mode must be set 2 Rotate the switch to the position corresponding to the type of analysis desired 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 s 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 relevant 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 7 1 and 7 2 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 paragraph 10 1 EN 63 A AMPROBE DMIII MULTITEST 8 2 USING THE INSTRUMENT IN A THREE PHASE 4 WIRE SYSTEM CAUT
48. ase and 4 wires three phase system b Voltage Phase to Phase for 3 wires three phase system Single phase 110V 3 wires 480V 4 wires 277V LIM LIM only if ANOM REC flag has been set High and Low Voltage Percent threshold used in Voltage Anomalies detection Voltage Sag and Surge Example Three Phase System 4 wires Vref 110 LIM 6 LIM 10 gt High Lim 121 0V Low Lim 99 0V 6 10 ON The Instrument will detect a voltage Anomalies if the RMS Voltage Values calculated every 10ms beyond the above calculated thresholds see paragraph 16 6 11 12 13 IN RMS value of the current of phase 1 phase 2 phase 3 and of Single phase 11 ei 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 44 A AMPROBE DMIII MULTITEST 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 8 1 If this flag is enabled the maximum number of parameters which can be selected decrease to 38 OFF the instrument will record ONLY the powers and Q12i Q32i energies absorbed Values
49. ase to Phase for 3 wires three phase system Example1 Three Phase System 3 wires Example2 Three Phase System 4 wires Vref 400V LIM 6 LIM 10 gt Vref 230V LIM 6 LIM 10 gt High Lim 400 x 1 6 100 424 0V High Lim 230 x 1 6 100 243 08V Low Lim 400 x 1 10 100 360 Low Lim 230 x 1 10 100 207 0V 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 Surge and Sag 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 7 VOLTAGE AND CURRENT HARMONICS 16 7 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 V dV sin t Q 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 EN 91 A AMPROBE
50. ave to comply with the selected type of system 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 7 1 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 recognise 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 EN 37 A AMPROBE DMIII MULTITEST 7 1 3 How to set the Clamp Type The value of this parameter must be always equal to the type of clamp being used Three types of clamps are available v STD STANDARD clamps or current transformers v FlexEXT FLEXIBLE clamps with EXTERNAL power supply v FlexINT FLEXIBLE clamps AM Flex33 coils directly connected to the instrument inputs These clamps allow 1000A and 3000A range Set the desired value by pressing the multifunction keys F3 and F4 7 1 4 How to set the current range 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 For STD and F
51. be associated to the clamp meter no 1 Apply voltage to the electrical equipment under test if previously shut off for the instrument connection The values of the available electrical parameters will be displayed For further details see the paragraph relevant to the position of the switch You can press HOLD to interrupt the real time updating of the displayed values If you want to record a Check and modify the values of the basic parameters see paragraphs 7 1 and 7 2 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 paragraph 10 1 EN 64 A AMPROBE DMIII MULTITEST 8 3 USING THE INSTRUMENT IN A THREE PHASE 3 WIRE SYSTEM N Please note that in this case the Yellow cable is connected with the red CAUTION 350V phase to earth or 600V CATIII 300 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 own safety The maximum voltage between V1 V2 V3 inputs is 600 V CATII Instrument connection in a three phase 3 wire system CAUTION cable on phase 2 Note The connection of Clamp 2 isn t necessary for Power measurement de Check and if needed modify the basic settings of the
52. can be stored by pressing the SAVE key twice refer to paragraph 9 1 6 3 PHASE SEQUENCE INDICATOR vAg Turn the rotary knob to the position xg PHA An 6 3 1 Measurement procedure and results of t mode Wi 1 Connect the Black Red and Blue connectors of the split cables to their corresponding input terminals of the instrument T1 T2 T3 Instrument connection for Phase Sequence Detection in a 400V three phase system 2 Press the START key to execute a test At the end of the test the instrument emits a double beep eta ETENI Phase Sequence OK indicating that the test has correctly terminated and Value of the Phase to Phase displays the values to 123 Voltage the right FRO 60 0HZ V1 2 115V V2 3 113V V3 1 114V Working mode we This result can be stored pressing the SAVE key twice refer to paragraph 9 1 EN 26 A AMPROBE DMIII MULTITEST EN 27 A AMPROBE DMIII MULTITEST 6 3 2 Faulty Cases In the Q mode if a Phase to Phase voltage is lower than 100V the instrument displays the screen to the right In the mode if the instrument detects two phases connected together it displays the screen to the right LOOP 05 06 01 FRQ 60 0HZ V1 2 111V V2 3 0 V V3 1 OV v LOW VOLTAGE T GC 4J PHASE ROTATION Phase T2 Voltage is lower than 100V LOOP 05 06 01 FRQ 60 0HZ V1
53. d When this function is enabled it s not possible to record nor perform energy measurements This function is disabled during a recording or an energy measurement MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 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 EN 59 A AMPROBE DMIII MULTITEST 7 6 3 WAVE mode By selecting the WAVE mode one of the screens below will be displayed according to the settings made as per paragraph 7 1 The screens show the waveform of phase currents and phase or phase to phase voltage 27 09 00 Lisa 2 ENERO LESIE 27 09 00 VEE 5312 Example of screen in Example of screen in 3 Example of screen in 4 single phase mode wire three phase mode wire three phase mode The symbols used are described in Tab 3 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are active e F1 only for three phase mode to display the values related to the following phase On the basis of the settings made as per paragraph 7 1 following screens are displayed cyclically v 3 wires three phase values of Wattmeter 1 2 values of Wattmeter 2 3 v 4 wires three phase values of phase 1 phase 2 and phase 3 ESC to return back to METER mode see paragraph 7 6 2 SAVE to save in the instrument
54. e for electrical 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 motors and other devices that presented linear loads The result was an essentially sinusoidal current in each phase and a low current on the neutral at a frequency of 50 60Hz Modern devices such as TV sets fluorescent lights video machines and microwave ovens normally draw current for only a fraction of each cycle thus causing non linear loads and subsequent non linear currents All this generates odd harmonics of the 50 60Hz line frequency For this reason the current in the transformers of the distribution boxes contains only a 50Hz or 60Hz component but also a 150Hz or 180Hz component a 50Hz or 300Hz component and other significant components of harmonic up to 750Hz or 900HZ and higher The 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 EN 93 A AMPROBE DMIII MULTITEST 16 7 4 Presence of harmonics consequences In general even harmonics i e the 2 4 etc do not cause problems Triple harmonic
55. e phase mode wire three phase mode wire three phase mode The symbols used are described in Tab 1 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are active s Fi to pass to HARMONIC mode see paragraph 7 4 3 amp F2 to pass to WAVE mode see paragraph 7 4 4 e F3 F4 to pass to previous next function respectively SAVE to save in the instrument memory a record of Smp type containing the instantaneous values of voltage and current present at the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of displayed data All previous functions remain however available When the HOLD function is activated the word is displayed When this function is enabled it s not possible to record nor perform energy measurements This function is disabled during a recording or an energy measurement MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 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 EN 48 A AMPROBE DMIII MULTITEST 7 4 3 HARM mode By selecting the HARM mode one of the screens below will be displayed according to the settings made The screens show the harmonics of the phase or phase to phase voltage 2 1609 200
56. ee phase mode to display the values corresponding to the following phase ESC to return back to METER mode see paragraph 7 4 2 SAVE to save in the instrument memory a record of Smp type containing the instantaneous values of voltage and current present at the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of displayed data All previous functions remain however available When the HOLD function is activated the word is displayed When this function is enabled its not possible to record nor perform energy measurements This function is disabled during a recording or an energy measurement MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 Its 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 EN 51 A AMPROBE DMIII MULTITEST 7 5 CURRENT FUNCTION This function permits to display in real time the RMS value of AC DC currents the peak and Thdl value of the 3 phase currents the waveform and the harmonic spectrum of the 3 phase currents 7 5 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 Symb
57. eesceesesaceceeeaeansusaseeeceasensusaseeeceatensaseseneesanenseseeeeeeseneees 38 7 1 5 How to set the value of the transformer voltage ratio TV RATIO cseesessssesseesesesesneeteneeneeteseeneetesseneeeeaneneeteateneetenees 38 7 1 6 How to enable disable the password ccs cececseccsessesesseseeceeesesecseeeeeeansesuceeeceseacsseceeeceasansuseceeeseatensaseseteesansnseseteteeseneets 38 7 2 Basic Setting RECORDER CONFIG sccs ssechacstentinsctiecaudesctaststaceacidestenbacticcntinrtsiacnr Na lsbarsaandataneccetebe 39 7 3 POWER QUALITY FUNG TON Ss iasiecasnccatsuaisasssusbaieianpabderangnicpuine cecaagutinchabinbatheindahihacpebatsuantwlehabiabistaidbaleseineacend 46 A AMPROBE DMIII MULTITEST T4 VOLTAGE MUNG U ON icc cst eck chee cnc vata cece caved teach cach aca edness ncaa EEEE E Ee 47 HA lg sOVMDOIS T NIAAA A AE AEA E ANE EENAA IAA E TAA A T 47 EAZ METER MOdG si scihs wean dhlesi annie unidis iat anand Atala anna iael anna elena Gh onan tee ae 48 E496 HARM MOE esi icc kan died ornare O hae dad onnasirian ohne enone inom aan 49 Aas WAVE MOdG oia R E ra it ani ans hla nao uni aia anne ain annie de 51 1 9 CURRENT FUNCHON szisszent EEES 52 Tol SYMDOS ospa a O O TONOA 52 Gods METER MOJE aaa aE O AOON OAS 53 Tode HARM MOOG rian A inept ancien dich aanaa han ORON 54 E04 WAVE M006 oann a tai iaeinian cian an AA ARE 56 T6 POWERS MUNIN acta cee ccc ete case chee ase hed ceest ahca dad cancel cascaia ves alas da
58. endent parameters 16 9 3 Voltage Anomalies and Periods Analysis comparison If You want to compare Voltage Anomaly and Periods Analysis results You should note that 1 Voltage anomalies calculate RMS values over 10ms time while Periods Analysis calculate MAX MIN RMS value over a module of 16 waveforms 16 x 16 66ms 0 266ms This generally implicates different values between Voltage Anomalies and Periods Analysis results because the Integration time is different Example Integration Time 60sec If Your signal consists of 3600 waveforms 7200 half waveforms and only the first half waveform reach 246 6V while 7199 half waveforms stay at 240 6V You will get Voltage anomaly 246 6V Max of Periods analysis 240 79V AVG of Periods analysis 240 6008V MIN of Periods analysis 240 6V EN 98 A AMPROBE DMIII MULTITEST 2 The Voltage anomalies routine starts a Voltage anomaly if the RMS value calculated over 10ms is over under the High low Threshold and stops it when the RMS value calculated over 10ms is under over the High low Threshold 3 of Threshold where 3 is a fixed percentual of High Low threshold which introduces an hysterisis between Start and Stop voltage values Example Vref 230V 6 gt High Threshold for start 243 8 High Threshold for stop 243 8 7 3 236 5V Low Threshold for start 216 2 Low Threshold for stop 216 2 6 5 222 7V 3 The voltage anomalies routine in
59. eps 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 68 A AMPROBE DMIII MULTITEST The chosen configuration is the following for POWER QUALITY function 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 110V 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 c
60. er test check that rotary switch position is correct 1 3 DURING USE Please read the following recommendations carefully and instructions WARNING AN Non compliance with the Warnings and or Instructions may damage the apparatus and or its components or injure the operator Before selecting any function disconnect the test leads from the circuit under test When the instrument is connected to the circuit under test do not touch any unused terminal Avoid taking resistance measurements in the presence of external voltages even though the instrument is protected a high voltage may cause malfunctions When measuring current other currents located near the leads may affect the measuring accuracy When measuring current always position the wire in the middle of the jaws in order to obtain the highest accuracy A measured value remains constant if the HOLD function is active Should you notice that the measured value remains unchanged disable the HOLD function WARNING The symbol iF shows the battery charge When it is completely black the batteries are full charged while the L symbol indicates weak batteries When the batteries are too low to execute a test the instrument will show a warning message In this case interrupt testing and replace batteries following the procedure described in paragraph 13 2 The instrument is capable of keeping the data stored even though batteries are not installed The Inst
61. eries If during a recording the external power supply adapter 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 Because of 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 Specifically v The instrument switches OFF the backlight Automatically after 5 seconds v Ifthe instrument is displaying in real time and the external power supply adapter is not connected after about 5 minutes from the last key press or switch rotation the instrument turns off automatically AUTOPOWER OFF procedure v 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 press 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 fulfils the technical specifications listed in this manual The performance of the specifications is guaranteed for one year 3 4 STORAGE In order to maintain the accuracy of the measurements after a period of storage in extreme environmental conditions wait the necessary time for the apparatus to return to normal operating conditions see envi
62. etta 80 15 SERVIC E inini ae a a A ene eo 81 15 1 WARRANTY GONNIDETIIOING sizes cicada cca nea tana eich inca ar aa ena E REEERE aE 81 192 SERVIC Ee e a Cree fe ee ne CE E E e ee Seven Treo eer oer 81 16 PRACTICAL REPORTS FOR ELECTRICAL TESTS cscistsissssscssssssstssstssssssusnacsssusnensssxsssnsssvssstesstasiernsnasancte 82 EN 2 A AMPROBE DMIII MULTITEST 16 1 Continuity Test On Protective Conductors cc isccccscicaccecetees ctasccescecsteiactciactaeecesidueaioeeyanaedeactassmasnabicluiousentiseaciens 82 16 2 Check of the Circuit Separation scessssssssssssssssssssssssssssssessssssessesssecsssesssessecsssesessessseesesusscessesersesesaeesscasseses 83 16 3 Measurement Of Floor Insulation Resistance In Medical ROOMS Cei 64 4 c cccesecsesesessssesteseeestssesnseseeseeeseees 86 16 4 Ground Resistance Measurement c ccsecssscsssssecssscsessssnsncsssesussesnsscscessecsnseseesnsusansucaseceusacssueeceeeesensncaseceesecenees 88 16 5 Ground Resistivity le aS UU MAS Ue cca gece ct ae cscs ch scat fecha ceiutaeta des bide cnness ee eset lee pctncicneace 89 16 6 Voltage Anomalies Voltage Sag and Surge sssssscsssecsecessecsscessesseeeesesneseesesueaeeseseeaeesesteaeeesneseeteateneeneanenses 91 16 7 Voltage and current FUMING ccc cl ace cal aa ate casa he dca emesis 91 Ti The OLY nena Siena Scien aie onus than Masia ine whan bad ainuieas han edu itineianhanas 91 16 7 2 Limit ValleS Tor NarmONleS seinasti innana ana aaaea
63. f the rod beyond A Curve3 even at an increased depth p does Earth rods distances a m not decrease therefore a ring rod must be used APPROXIMATE EVALUATION OF THE CONTRIBUTION OF INTENTIONAL RODS 64 12 2 4 1 The resistance of a rod Rd can be calculated with the following formulas p medium resistivity of the ground a Resistance of a vertical rod Rd p L L length of the element touching the ground b Resistance of an horizontal rod Rd 2p L L length of the element touching the ground c Resistance of linked elements The resistance of a complex system with more elements in parallel is always higher than the resistance that could result from a simple calculation of elements in parallel especially if those elements are close and therefore interactive For this reason in case of a linked system the following formula is quicker and more effective than the calculation of the single horizontal and vertical elements Rd p 4r r radius of the circle which circumscribes the link EN 90 A AMPROBE DMIII MULTITEST 16 6 VOLTAGE ANOMALIES VOLTAGE SAG AND SURGE The Multitest 2000 is able to record as voltage anomalies all those rms values calculated every 10ms beyond the percent thresholds of Voltage Reference Vref set during the programming from 3 to 30 with step of 1 The Reference must be set to Nominal Voltage Phase to Neutral for Single Phase and 4 wires three phase system Nominal Voltage Ph
64. f the stored data HOLD By pressing the proper key the HOLD function has been Press HOLD again to disable this function activated Password A recording has been started and at least 5 minutes have Insert the password passed from the last activity of the instrument see F1 F4 F3 F2 paragraph 7 1 6 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 Memory Full The memory of the instrument is full Cancel some recordings after transferring them to a PC No ext supply A recording has been started without connecting the Verify it you really want to start the recording external power supply optional code A0051 without the external power supply In that case press START again No parameter sel A recording has been started without selecting any value to Press START STOP and select at least a be recorded value entering the MENU No Phase selected Voltage and or current harmonics have been selected and Select at least one phase voltage and or the corresponding flag has been enabled HARMONICS current ON but no phase voltage or current has been selected PASSWORD ERROR The inserted password is wrong see paragraph 10 3 Check the password PASSWORD OK The inserted password is correct Please wait The instrument is waiting for the recording to be started see paragraph 10 1 Recording The instrument is recording see paragraph 10 2 Too many param
65. forms you about a Starting time of the Voltage anomaly b Duration c Extreme RMS value calculated over 10ms during the whole Voltage anomaly Example a voltage anomaly of Extreme 246 6V Duration 20244 09s means that i during 20244 09s the RMS voltage value reached 246 6 for 10ms ii during 20244 09s the RMS voltage value calculate over 10ms was over 236 5V High Threshold for stop 4 Both Voltage anomalies routine and Periods routines have an accuracy of 0 5 rdg 2dgt As the routines the calculation rounding etc are different in order to compare the results You should consider a double global uncertainty So theoretically a nominal voltage of 245 2V could become a 246 6V 245 2 1 433 measured by Voltage Anomalies routine b 243 7V 245 2 1 433 measured by Periods Analysis routine EN 99 A AMPROBE DMIII MULTITEST 17 APPENDIX 1 MESSAGES DISPLAYED Advices Message Description AUTONOM Available memory autonomy for the recording which is being effected CLEAR ALL Enter The operator is trying to cancel all the recordings effected Press ESC in order not to cancel the whole memory press ENTER to confirm CLEAR LAST Enter The operator is trying to cancel the last recording effected Press ESC in order not to cancel the last recording press ENTER to confirm Data saved The data have been saved DATA SIZE Dimensions o
66. h 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 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 15 2 SERVICE If the instrument does not operate properly before contacting the after sales service check cables as well as test leads and replace them if necessary Should the instrument still operate improperly check that the operation procedure is correct and conforms with the instructions given in this manual If the instrument is to be returned to the after sales service or to a dealer transportation costs are on the customer s behalf Shipment shall be however agreed upon A report must always be enclosed to a rejected product stating the reasons of its return To ship the instrument use only the original packaging material any damage that may be due to no original packing shall be charged to the customer EN 81 A AMPROBE DMIII MULTITES
67. 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 contribute together 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 that 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 values 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 EN 95 A AMPROBE DMIII MULTITEST 16 8 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
68. hase 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 7 Thdl Factor of total harmonic distortion of the current see paragraph 16 7 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 8 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 8 2 St S1 S2 S3 Values of the total apparent power of phase 1 phase 2 phase 3 respectively S12 S32 only for 3 wires measurement Value of the power measured by the VAmeter 1 2 and 3 2 respectively see paragraph 16 8 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 cosa of phase 1 phase 2 phase 3 respectively Eat Eai Ea2 Eas Values of the total active energy of phase 1 phase 2 phase 3 respectively Erit
69. ircuit Test Voltage lt 20V RMS GROUND TEST RESISTIVITY MEASUREMENT Range p Resolution Accuracy 0 60 19 99 Qm 0 01 Qm 20 0 199 9Qm 0 19m 200 1999Qm 1 9m 5 Reading 3 digit 2 00 99 99kQm 0 01 kQm 100 0 125 6kQm 0 1 kQm setting distance 10m Test Current Open circuit Test Voltage lt 10mA 77 5Hz lt 20V RMS EN 76 A AMPROBE DMIII MULTITEST 14 1 2 POWER QUALITY function VOLTAGE MEASUREMENT AUTORANGE Range V Resolution V Accuracy Input Impedance 15 310V 0 2V i 5 A ee 300kQ Phase Neutral 310 600V 0 4V 0 5 Reading 2digit 300kQ Phase Phase VOLTAGE SAG AND SURGE DETECTION MANUAL RANGE Resolution Resolution Accuracy Accuracy rif 50Hz Range V Voltage Time Voltage Time Input Impedance 15 310V 0 2V A i A 300kQ Phase Neutral 30 600V 04V 10ms 1 2 period 1 0 Reading 2digit 10ms 1 2 period SOUR P Phase CURRENT MEASUREMENT STD amp FlexEXTclamps Range V Resolution mV Accuracy Input Impedance Overload Protection Cee 01 0 5 Reading 2digit 200k 5V 0 26 1V 0 4 cae Reading adigit Example with a 1000A 1V full scale clamp the instrument detect only current higher than 5A CURRENT MEASUREMENT FlexINT clamp 1000A Ra
70. just 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 instrument 5 2 HOWTO SET DATE AND TIME By pressing the multifunction keys F1 and F2 position the cursor on the DATE amp TIME item and then press the ENTER key 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 after turning off the instrument 5 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 cancel the modification This setting will remain unchanged after turning off the instrument 5 4 HOW TO ADJUST THE COUNTRY By pressing the multifunction keys F1 and F2 position the cursor on the COUNTRY item and confirm it by pressing the ENTER key By pressing the multifunction keys F1 and F1 select the Country among the following possibilities UE_m European Countries Distance setting in meter for Resistivity measurement Date format DD MM YY US_m United States Dista
71. l 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 AUTOPOWER OFF function ON OFF key v HOLD key v SAVE key lt 10 2 1 MENU key If you press press the MENU key during a recording the following screen will appear INFO REC n XX START 09 18 01 11 35 STOP 13 18 01 12 00 INT PERIOD 15min REC PERIODS 00004 REC TIME 139d 02h HARM REC ON ANOM REC ON N ANOMALIES 00000 Recording This page includes START Date and Time STOP Date and Time or Manual 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 eo oO eee EN 70 A AMPROBE DMIII MULTITEST 10 2 2 Rotary Switch during a recording If You move the rotary switch during a recording the following screen will ap
72. layed When this function is enabled it s not possible to record nor perform energy measurements This function is disabled during a recording or an energy measurement 4 MENU to enter in the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It s not possible to enter the configuration MENU during a recording or an energy measurement 4 START STOP to record selected parameters according to the instrument s settings EN 56 A AMPROBE DMIII MULTITEST 7 6 POWER FUNCTION This function permits 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 and the waveform of the 3 phase currents Furthermore the instrument calculates and displays the value of phase and total active powers the value of phase and total reactive and capacitive powers the value of phase and total power factors and cos 7 6 1 Symbols The position POWER has two working modes v METER v WAVE For voltage and current harmonics see paragraphs 7 4 3 and 7 5 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 voltage phase 1 phase 2 phase 3 respectively V12 V23 V32 V31__ RMS value of
73. lect p measurement mode by means of the F1 key 2 Select the distance d between the earth rods by means the F3 and F4 keys The Distance measuring unit comply with Country setting See par 5 4 3 Connect the 4 Black Red Blue and Yellow connectors of the single cables in the corresponding input terminals of the instrument T1 T2 T3 T4 6 9 5 Instrument connection for Earth resistivity measurement A 4 Press the START key The instrument starts the test At the end of the test the instrument emits a double beep aa EEDENI Ground Resistivity value indicating that the expressed in Qm test is correctly terminated and Voltage value of electrical displays the values to 1 77 Qm noise the right vda 1v Number of Test ee Test 04 Average Value of Ground Resistivity calculated over the ie ee Number of Test displayed p DIST 2m FUNC CLR Tt 4 pAVG 0 74Q p Working mode 5 The instrument will show automatically the Average value of the Ground Resistivity calculate over the tests performed Press F2 to RESET this value and the number of Test we This result can be stored by pressing the SAVE key twice refer to paragraph 9 1 EN 32 A AMPROBE DMIII MULTITEST EN 33 A AMPROBE DMIII MULTITEST 6 4 3 2 W 3 W and p faulty cases amp If the instrument detects EARTH 05 06 01 the External Power supply ada
74. lexEXT the value of this parameter must be always equal to the full scale of the current clamp used to take the measurement In case multi scale clamp is used the value of this parameter must be equal to the scale selected on the clamp For FlexINT AM Flex33 only two ranges are available 1000A and 3000A 7 1 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 he 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 none transformer systems Select TV RATIO in the ANALYZER CONFIG menu Set the desired value by pressing the multifunction keys F3 and F4 7 1 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
75. mA AUTO 0 110 FUNC CAL HARM WAVE These symbols will be omitted in the following illustrations 4 2 INITIAL SCREEN When turning on the instrument by pressing ON OFF this screen will appear for a few seconds DMIII Multitest AMPROBE SN 00000000 V X XX BAUD RATE 57600 Here you can see e Serial number of the instrument SN e Firmware software release V X XX e Transmission speed through serial RS232 Baud Rate 4 3 BACKLIGHT FUNCTION When the instrument is turned on pressing briefly the ON OFF 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 automatically disable the backlight function EN 10 A AMPROBE DMIII MULTITEST 5 INITIAL SETTINGS By pressing the MENU key the following screen will be displayed MENU GENERAL SAFETY TEST MEMORY ANA y R M MORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE amp TIME LANGUAGE COUNTRY 4 t It s not possible to enter the MENU during a recording or a Real Time Energy measurement Pressing this button during a recording will display the main recording parameters see paragraph 10 2 5 1 HOW TO ADJUST THE CONTRAST By pressing the multifunction keys F1 and F2 position the cursor on the CONTRAST item and then press the ENTER key By pressing the multifunction keys F3 and F4 ad
76. mbol Description Pt P1 P2 P3 Values of active power total phase 1 phase 2 phase 3 respectively P12 P32 only for 3 wire measurement Value of power measured by Wattmeter 1 2 and 3 2 respectively Qt Q1 Q2 Q3 Values of reactive power total phase 1 phase 2 phase 3 respectively Q12 Q32 only for 3 wire measurement Value of power measured by VARmeter 1 2 and 3 2 respectively St S1 S2 S3 Values of the apparent power total phase 1 phase 2 phase 3 respectively S12 S32 only for 3 wire measurement Value of power measured by VAmeter 1 2 and 3 2 respectively Eat Ea1 Ea2 Ea3 Values of active energy total phase 1 phase 2 phase 3 respectively Erit Eri1 Eri2 Eri3 Values of inductive reactive energy total phase 1 phase 2 phase 3 respectively Erct Erc1 Erc2 Erc3 Values of capacitive reactive Energy total phase 1 phase 2 phase 3 respectively Est Es1 Es2 Es3 Values of apparent energy total phase 1 phase 2 phase 3 respectively Tab 4 Symbols used in the ENERGY function The symbols i and c stand for reactive powers Q and energies Er inductive and capacitive respectively EN 61 A AMPROBE DMIII MULTITEST 7 7 2 METER mode By selecting this function the instrument selects automatically the METER mode corresponding to one of the screens below according to the settings made as per paragraph 7 1 27 09 00 17235212 ENERGY SINGLE PHASE Eal 0 000 kWh Ercl 0 0
77. meters 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 schematised as follows EN 39 A AMPROBE DMIII MULTITEST cam MENY RECORDER CONFIG START STOP MANU INT PERIOD 15min HARM REC ON ANOM REC ON 15 Page of the RECORDER CONFIG MENU ENTER e Use the multifunction keys F1 F2 to position the cursor on the desired symbol and use the multifunction keys F3 F4 to select deselect the desired parameter it s selected if marked in black RECORDER CONFIG VOLTAGE V12 V23 V31 HARM REC Pg ON Press ENTER to confirm and leave the Menu keeping the settings made Press ESC to leave this page without modifying the existing parameters Vref P N 110V LIM 06 116 6V LIM 10 99 0V E fe Example of 2 page with ANOM flag enabled If you want to change Voltage Harm Selection place the cursor on the corresponding Pg symbol then Press F3 RECORDER CONFIG VOLTAGE HARMONICS ENER EATARRA NA Example of sub page VOLTAGE HARMONICS EN 40 To Select MANUAL or AUTOMATIC start stop mode
78. nce setting in meter for Resistivity measurement Date format MM DD YY US ft United States Distance setting in feet for Resistivity measurement Date format MM DD YY 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 11 A AMPROBE DMIII MULTITEST 5 5 RESET This option re establishes the default settings of the instrument v ANALYZER CONFIG Type of electrical equipment Three Phase 4 wires Frequency not modified Clamp full scale not modified Clamp type not modified Transforming ratio of voltmetric transformers 1 Password disabled v RECORDER CONFIG Start manual the recording is started at 00 sec mark on clock after pressing START STOP Stop manual Integration period 15min Recording of harmonics ON Recording of voltage anomalies sags and surges ON Voltage reference for detection of sags and surges 110V Upper limit for detection of sags and surges 6 Lower limit for detection of sags and surges 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 Selected powers Pf and coso Pt P1 P2 P3 Qti Q1i Q2i Q3i Qtc Qic Q2c Q3c St S1 S2 S3 Pft Pf1 Pf2 Pf3 dpft dpf1 dpf2 dpf3 Energies Eat Ea1 Ea2 Ea3 Erit Erid Eri2 Eri3 Erct Erc1 Erc2 Erc3 Est Es
79. ncluding 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 h Relative voltage Max Order h Relative voltage Max Order h Relative voltage Max 5 6 3 5 2 2 7 5 9 1 5 4 1 11 3 5 15 0 5 6 24 0 5 13 3 21 0 5 17 2 19 15 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 16 7 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 result in some way virtually distorted The most common situation is the harmonic distortion caused by non linear loads such as electric household appliances personal computers or 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 delta primary and star secondary transformers The secondary generally provides 230V AC from phase to neutral and 400V AC from phase to phase Balancing the loads on each phase has always represented a headach
80. negative is NOT defined in the panel EN 96 A AMPROBE DMIII MULTITEST 16 8 2 3 Phase 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 Wa VaR 1 2 L Three phase Phase 2 e 6 Equipment Phase 3 wae VAR32 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_5 Qror VAR VAR3_5 Stor Wi W3_5 j VAR gt VAR3_5 y EN 97 A AMPROBE DMIII MULTITEST 16 9 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 analogic 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 9 1 Integration periods The storage of all the data would require a huge memory capacity Therefore we ve tried to find out a storage method that compresses the information to be memorized while providing
81. ng the last or running recording The average value is evaluated with reference to the integration period set for the recording This screen also shows the corresponding active energy and the corresponding peak date and time Ze 09200 le Vie 35s 2 2 OD S00 LI 3 5 22 PEAK DEMAND PEAK DEMAND THREE PHASE THREE PHASE Ead 98 36 kWh Esd 120 84 kVAh Pd 24 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 PG PG ChgP VAh PG PG 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 7 1 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 e F3 to show active power and active energy values eo F4 to show apparent power and apparent energy values amp SAVE to save in the instrument memory a record of Smp type and the instantaneous values of voltage and current present at the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of displayed data All previous functions remain however available When the HOLD function is activated the word is displaye
82. nge Current Range Input Voltage Range Resolution Accuracy Input Impedance Reh aera 5 00 20 00A 425uV 1 7mV 0 850uV 4 0 rdg 8 5uV 20 00 99 99A 1 7mV 8 499mV 0 850uV 1 0 rdg 8 5uV 9 166kQ 5V 100 0 999 9A 8 5mV 84 99mV 8 5uV 1 0 rdg 85uV CURRENT MEASUREMENT FlexINT clamp 3000A Range Current Range Input Voltage Range Resolution Accuracy Input Impedance fr ae 15 00 99 99A 1 27mV 8 499mV 0 850uV 1 0 rdg 8 5uV 100 0 270 0A 8 5mV 22 75mV 8 5uV 1 0 rdg 42 5uV 9 7kQ 5V 270 0 999 9A 22 75mV 84 99mV 8 5uV 1 0 rdg 85uV 1 00 3 00kA 85mV 255mV 850uV 0 5 rdg 8 5mV POWER MEASUREMENT AUTORANGE Quantity Range Accuracy Resolution D 999 9W 0 1W 999 9kW 0 1kW ACTIVE POWER 1 999 9MW 0 1MW 1000 9999MW 1MW 0 999 9VAR 0 1VAR 1 999 9kVAR 0 1kKVAR REACTIVE POWER 1 999 9MVAR 0 1MVAR 1000 9999MVAR 1MVAR 0 eatin ONA 1 999 9kVA i A 0 1 APPARENT POWER 1 999 9MVA 1 0 Reading 2digit 0 1MVA 1000 9999MVA 1MVA 0 999 9Wh 0 1Wh ACTIVE ENERGY 1 999 9kWh 0 1kWh Classe2 EN61036 1 999 9MWh 0 1MWh 1000 9999MWh 1MWh 0 999 9VARh 0 1VARh REACTIVE ENERGY 1 999 9kVARh 0 1kKVARh Classe3 IEC 1268 1 999 9MVARh 0 1MVARh 1000 9999MVARh 1MVARh Cos MEASUREMENT Cos Resolution Accuracy 1 00 0 80 0 6 0 80 0 50 0 01 0 7 0 50 0 20 1 0 VOLTANGE AND CURRENT HARMONICS MEASUREMENT Range Accuracy Resolution DC 25H 5 2 digit 26
83. nstrument memory a record of Smp type containing the instantaneous values of voltage and current present at the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function displayed data All updating interruption of previous functions remain however available When the HOLD function is activated the word is displayed When this function is enabled it s not possible to record nor perform energy measurements This function is disabled during a recording or an energy measurement MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It s not possible to enter the configuration MENU during a recording or an energy measurement 4 START STOP EN 62 to record selected parameters according to the instrument s settings A AMPROBE DMIII MULTITEST 8 MEASURING PROCEDURES 8 1 USING THE INSTRUMENT IN A SINGLE PHASE SYSTEM CAUTION The maximum voltage between V1 and COM inputs is 600 V CATII AN 350V phase earth or 600V CATIII 300 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 11 gt Instrument connection in a single phase system 1 Check and if needed modify the basic settings of the instrument see paragraphs 7 1
84. o the right LOWQ 05 06 01 v REMOVE POWER AUTO 0 110 FUNC CAL LOWQ 05 06 01 v VOLT IN INPUT AUTO 0 1190 FUNC CAL LOWQ 05 06 01 R R 0 00Q 0 00Q 219mA 219mA AUTO 0 110 FUNC CAL EN 19 Disconnect the External Power Supply Adapter ATTENTION the test was not performed because of voltage at the terminal ends Q Q v_0 00Q ATTENTION RcaLiBRAaTION gt RMEASURED A AMPROBE DMIII MULTITEST THE PREVIOUS RESULTS CAN T BE SAVED Resistance value higher than 5Q f the value of Resistance _is_ higher an than 5Q but lower than 99 9Q the instrument V emits a long beep and displays a screen similar 5 17Q to the screen to the right R R 5 17Q 5 17Q 209 209mA a M AUTO 0 110 FUNC CAL Test current we The displayed result can be stored pressing the SAVE key twice refer to paragraph 9 1 e if the value of Resistance value higher Resistance _is higher a 99 90 than 99 90 the instrument emits a long v gt 99 90 ATTENTION Value of beep and displays the Resistance Out of Range j R R screen to the right ae er mA mA AUTO 0 11Q FUNC CAL a The displayed result can be stored pressing the SAVE key twice refer to paragraph 9 1 EN 20 A AMPROBE DMIII MULTITEST 6 2 INSULATION
85. ode i 1 Select 2 W or 3 W Ground measurement mode by means of the F1 key 2 Connect the Black Red Blue and Yellow cables to the corresponding input terminals of the instrument T1 T2 T3 T4 see possible connections in the following pictures F1 Transf Yellow Connection for 3 point Earth resistance Connection for 2 point Earth Resistance measurement measurement Connection for measuring the resistance between an extraneous conductive part and the earth system ed 3 Press the START key The instrument starts the test EN 30 A AMPROBE DMIII MULTITEST At the end of the test the instrument emits a double beep indicating maw ERTE Ground Resistance value that the test is expressed in Q correctly terminated and displays the values Voltage value of electrical to the right 0 77Q noise Vd 1V T_ Number of Test a Test 04 RAVG 0 74Q Average Value of Ground Resistance calculated over the Number of Test 3 W displayed FUNC CLR 3 Point Working mode 4 The instrument will show automatically the average value of the Ground resistance calculate over the tests performed Press F2 to RESET this value and the number of Test we This result can be stored by pressing the SAVE key twice refer to paragraph 9 1 EN 31 A AMPROBE DMIII MULTITEST 6 4 2 Measurement procedure and results of pD mode 1 Se
86. of 250VDC e PELV system Protective Extra Low Voltage v Measure the resistance between the active parts of the circuit under test separate and the active parts of the other circuits The resistance shall not be lower than 0 25MQ with a test voltage of 250VDC e Electrical separation v Measure the resistance between the active parts of the circuit under test separate and the active parts of the other circuits v Measure the resistance between the active parts of the circuit under test separate and the ground The resistance shall not be lower than 0 5MQ with a test voltage of 500VDC and 1MQ with a test voltage of 1000VDC EN 83 A AMPROBE DMIII MULTITEST EXAMPLE OF CHECKING THE SEPARATION AMONG ELECTRICAL CIRCUITS Insulation or safety transformer making the separation among the circuits E AA 9191919 l Between the active parts of the separated circuit Test among the active parts Connect a test And among those lead of the instrument to one other circuits a he Wo conductors of the separate circuit and the other to one of the conductors of a no separate circuit Test between the active parts and the earth Connect a test a lead of the Equalising potentialo instrument to one node of the two
87. ol Description 11 12 13 RMS value of current phase 1 phase 2 phase 3 respectively IN RMS value of current on neutral Ipk1 Ipk2 Ipk3 Peak value of current phase 1 phase 2 phase 3 respectively h01 h49 Harmonic 01 harmonic 49 Thdl Total harmonic distortion factor of current freq Network frequency Tab 2 Symbols used in the CURRENT function EN 52 A AMPROBE DMIII MULTITEST 7 5 2 METER mode By selecting this function the instrument selects automatically the METER mode corresponding to one of the screens below according to the settings made as per paragraph 7 1 2109 00 1 Pr35212 ZYe09S00 lt P 3 032 27e U9S 00 6 P23 53 LZ SINGLE PHASE CURRENT CURRENT CURRENT I1 30 21 A I1 30 21 A I1 30 21 A I2 23 53 A I2 23 53 A Ipkl 49 53 A I3 23 06 A I3 23 06 A ThdI 23 06 freq 50 0 Hz IN 8 4 A freq 50 0 Hz freq 50 0 Hz HARM WAVE PG PG HARM WAVE PG PG HARM WAVE PG PG Example of screen in Example of screen in 3 Example of screen in 4 single phase mode wire three phase mode wire three phase mode The symbols used are described in Tab 2 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are active s Fi to pass to HARMONIC mode see paragraph 7 5 3 e F2 to pass to WAVE mode see paragraph 7 5 4 amp F3 F4 to pass to previous next function respectively
88. osition the cursor on the orresponding Pg Symbol and then press F3 oF RECORDER CONFIG Example of ENERGY sub page in single phase mode 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 43 A AMPROBE DMIII MULTITEST Symbols Description Advised settings START MAN The recording of all the selected parameters will start at 00 seconds after pressing START STOP see paragraph 10 STOP MAN The recording of all the selected parameters will be interrupted manually by pressing START STOP see paragraph 10 START AUTO STOP AUTO The recording of all the selected values will be started interrupted at the set dates and times In order to start the 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 paragraph 10 INT PERIOD The value of this parameter determines how many seconds the values of all the selected parameters will be memorized Available choices 5sec 10sec 30sec 1min 2min 5min 10min 15min 60min 15min HARM REC ON the ins
89. ot possible to enter the MENU during a recording or a Real Time Energy measurement 11 1 SAFETY TEST MEMORY Selecting the SAFET YEST MEMORY item and pressing ENTER the instrument display the following screen NNN MEM TYPE PLACE TOT FREE SAFETY TEST MEMORY MEM TYPE PLACE 001 LOWQ 003 002 EARTH 003 003 MQ 004 TOT 003 FREE 996 T 4 LAST ALL Example of SAFETY TEST MEMORY screen Order Number of the mesurement Measurement TYPE Mnemonic parameter associated by User to Measurement Total Number of Measurement Available Memory Location Following keys are enabled e e e e ee F1 F2 F3 F4 ENTER ESC to select the Measurement to cancel the last recording effected to cancel all the recordings effected to see the measurement results of the selected test to quit this mode EN 72 A AMPROBE DMIII MULTITEST 11 2 ANALYZER MEMORY This option permits you to display v The present content of the instrument memory v The size of the memorised data v The residual space available for future recordings expressed in days and hours All the stored data can be displayed and analyzed only downloading them into a 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
90. ower factors Pf and cos dpf inductive and capacitive respectively EN 57 A AMPROBE DMIII MULTITEST 7 6 2 METER mode By selecting this function the instrument selects automatically the METER mode corresponding to one of the screens below according to the settings made as per paragraph 7 1 2 HOS 00 LITS Le ZISOOSOO 1233 57 le 27 SO9S 00 ATS L2 SINGLE PHASE POWER POWER POWER THREE WIRE THREE PHASE vil 230 0 V Pt 64 19 kW Pt 135 8 kW I1 145 3 A gt 10 99 KVAR t 24 59 KVAR P1 32 91 kW t 65 12 kVA t 138 0 kVA gi 5 767 kVAR pft 0 99 i pft 0 98 i 1 33 41 KVA dpft 1 00 i dpft 1 00 i pfl 0 99 i Phseq 123 dpf1 0 99 i WAVE PG PG ChgP WAVE PG PG ChgP WAVE PG PG Example of screen in Example of screen in 3 Example of screen in 4 single phase mode wire three phase mode wire three phase mode The symbols used are described in Tab 3 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are active e F2 to pass to WAVE mode see paragraph 7 6 3 s Fi only for three phase measurement to display the previous or the following screen On the basis of the settings made as per paragraph 7 1 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
91. pear Recording This page means that a recording is running but the actual rotary switch position doesn t correspond to this The instrument will continue to record 10 3 STOPPING A RECORDING 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 7 7 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 7 1 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 71 A AMPROBE DMIII MULTITEST 11 INSTRUMENT S MEMORY By pressing the MENU key the following screen will be displayed MENU GENERAL SAFETY TEST MEMORY ANA Y i Mi MORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE amp TIME LANGUAGE COUNTRY 4 tT I s n
92. phase to phase voltages freq Network frequency Phseq Phase sequence indicator 123 correct 132 inverted 023 gt null voltage on black wire 103 null voltage on red wire 420 null voltage on blue wire 100 null voltages on red and blue wires 020 null voltages on black and blue wires 003 null voltages on black and red wires 11 12 13 RMS value of current phase 1 phase 2 phase 3 respectively IN RMS value of current of neutral Pt P1 P2 P3 Values of active power total phase 1 phase 2 phase 3 respectively P12 P32 only for 3 wire measurement value of power measured by Wattmeter 1 2 and 3 2 respectively Qt Q1 Q2 Q3 Values of reactive power total phase 1 phase 2 phase 3 respectively Q12 Q32 only for 3 wire measurement Value of power measured by VAR meter Va1 2 and 3 2 respectively St S1 52 S3 Values of apparent power total phase 1 phase 2 phase 3 respectively 12 S32 only for 3 wire measurement Value of power measured by VA meter Va1 2 and 3 2 respectively Pft pf1 pf2 pfs Values of power factors total phase 1 phase 2 phase 3 respectively dPft dpf1 dpf2 dpf3 Value of the cos total phase 1 phase 2 phase 3 respectively Ead Pd Values of total active energy and active power on demand respectively Esd Sd Values of total apparent energy and apparent power on demand respectively Tab 3 Symbols used in the POWER function The symbols i and c stand for reactive powers Q p
93. phase2 and phase3 values peak demand e F3 F4 to pass to previous next function respectively SAVE to save in the instrument memory a record of Smp type and the instantaneous values of voltage and current present at the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of displayed data All previous functions remain however available When the HOLD function is activated the word is displayed When this function is enabled it s not possible to record nor perform energy measurements This function is disabled during a recording or an energy measurement q MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It s not possible to enter the configuration MENU during a recording or an energy measurement 4 START STOP to record selected parameters according to the instrument s settings EN 58 A AMPROBE DMIII MULTITEST 7 6 2 1 PEAK ENERGY DEMAND In three phase systems by selecting the POWER function and pressing F1 thrice you can reach the Peak Demand mode This mode shows the values corresponding to the recording being performed or to the last performed recording if no recording is being performed 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 duri
94. pter connected to instrument Disconnect the External will show the message Q Power Supply Adapter displayed to the right Vd V Test 04 RAVG 0 74Q v REMOVE POWER 3 W FUNC CLR If the Instrument detect a voltage values higher than 5V the instrument eyNsaWa 05 06 01 Warning symbol Voltage will shows the screen noise In Input displayed to the right Vv Vd 230V Test 04 RAVG 0 74Q v VOLT IN INPUT 3 W FUNC CLR The message Rc high indicates that the instrument can t produce the minimum current necessary for measurement Check that the terminals are Q correctly connected Vd 1V and the Auxiliary earth rod connected to T4 _ Test 04 yellow conductor has h Message Rc Check not been inserted in a Auxiliary Earth rods pebbly or poorly 5_4 conductive ground If func Jezr necessary pour some water around the rod EN 34 A AMPROBE DMIII MULTITEST THE PREVIOUS RESULTS CANNOT BE SAVED If the Instrument detects a Resistance value higher than joeNsuwe Ome Message gt 1999 means that 19990 the instrument the resistance value is higher will show the screen to 1999 A AP MAKNU the right gt Q Vd 1V Test 04 RAVG 0 74Q 3 W FUNC CLR we This result can be stored pressing the SAVE key twice refer to paragraph 9 1 e If the Instrumen
95. resistance value is of the test and displays 523V 15s higher than Rmax one screen similar to the DS screen to the right MAN 500V Test duration FUNC VNOM we The displayed result can be stored by pressing the SAVE key twice refer to paragraph 9 1 EN 23 A AMPROBE DMIII MULTITEST 6 2 3 Results of TMR mode At the end of the test if Insulation Resistance the Insulation resistance is lower ee ee during the Test than Rmax see Table2 and the instrument Duration of the Test generated the 1 07 Nominal test Voltage Test mode the instrument emits a double beep indicating the positive outcome of the test and displays a screen similar to the screen to the right 514V 15s TMR 500V TIME 60s FUNC VNOM 4 we The displayed result can be stored by pressing the SAVE key twice according to paragraph 9 1 e f the Insulation MQ 05 06 01 Maximum resistance value resistance is higher that can be measured than Rmax see Table2 Seat ee ig as on ae rated voltage of 500V was the instrument emits a 999 MOQ selected sae Table2 double beep at the end of the test indicating The symbol gt means that the positive outcome the resistance value is of the test and displays 523V 15s higher than Rmax a screen similar to the oS screen to the right TMR 500V TIME 60s Test duration FUNC VNOM T
96. rical systems insulation not lower than that of the insulation transformer v Protection separation to the ground insulation not lower than that of the insulation transformer EN 85 A AMPROBE DMIII MULTITEST 16 3 Measurement Of Floor Insulation Resistance In Medical Rooms Cei 64 4 PURPOSE OF THE TEST Check that the floor is made of material whose insulation resistance complies with the requirements of the standards CEI 64 4 3 05 03 INSTALLATION PARTS TO BE CHECKED The test shall be effected between a Two electrodes whose distance to each other shall be one meter b One electrode on the floor and the equalising potential node Test b Connect the instrument test leads to the electrodes placed on the floor at a reciprocal distance of one meter Equalising potential node Test a Connect one test lead of the instrument to the equalising potential node and the other to one of the electrodes placed on the floor at a distance higher than one meter away from earthed objects Measurements of floor insulation resistance in medical rooms The electrodes shall consist of a plate having a surface of 20 cm weight equal to approx 1 Kg 10N and a humid absorbing paper or humid thin cotton cloth with the same surface placed between the metal plate and the floor The insulation resistance is represented both for the measurements indicated in a and for the measurements indicated in b by the aver
97. ronmental specifications listed in paragraph 14 4 EN 8 A AMPROBE DMIII MULTITEST 4 INSTRUMENT DESCRIPTION LEGEND 1 Display 2 Function Keys 3 Rotary switch Front panel of the Instrument F1 Fa F3 Faje Multifunction Keys ON OFF and backlight key Press it for few seconds to switch OFF the instrument press it briefly to activate the backlight function This key starts and stops the measurements This key saves the result displayed This key has 2 functions it is the confirmation key inside the configuration menu and it freezes the displayed results using the POWER QUALITY function This key opens the General Configuration Menu This key cancels modification in the configuration menus or the selected working modes wA ER lay ie EN 9 A AMPROBE DMIII MULTITEST 4 1 DISPLAY DESCRIPTION The display is a graphic module with a resolution of 128 x 128 pixels 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 2 On the top right corner of the display you can always see the battery indicator and if the external power supply adapter code DMT EXTPS is connected the corresponding symbol LOWO 05 06 01 27 00 00 17 35 12 SINGLE PHASE VOLTAGE v1 230 2 V Vpk1 325 5 V R R Thdv 0 0 5 gt 20 freq 50 0 Hz mA
98. rument Date and Time settings aren t lost if you change the batteries within 24hours 1 4 AFTER USE e After use turn off the instrument by pressing amp holding ON OFF for a few seconds e Remove batteries when the apparatus remains unused for long periods Please follow the storage instructions described at paragraph 14 4 EN 5 A AMPROBE DMIII MULTITEST 2 GENERAL DESCRIPTION 2 1 INTRODUCTION Dear Customer we thank you for your patronage The instrument you have just purchased will grant you accurate and reliable measurements provided that it is used according to the present manual s instructions The instrument was designed to grant the user the utmost safety conditions thanks to a new concept assuring double insulation and over voltage category Ill 2 2 FUNCTIONS The instrument is able to perform the following tests LOWQ Continuity Test of Protection and Equalising conductors with a test current higher than 200mA and open circuit voltage ranging from 4V to 24V INSULATION TEST Measurement of insulation resistance with DC test voltage 50V 100V 250V 500V or 1000V ty Indication of phase rotation sequence GROUND TEST Measurement of Ground Resistance and Resistivity using Earth rods POWER QUALITY The Instrument allows the following operations v Display in real time the electrical parameters of a single phase and three phase systems and the harmonic analysis of voltage and current v
99. rument back please follow the instructions reported in paragraph 15 3 2 POWER SUPPLY The instrument can be powered by v 6 batteries 1 5V AA series located in the compartment on the back of the instrument not included in the package For battery life see paragraph 14 3 2 v An external power supply adapter code DMT EXTPS to be used only for POWER QUALITY functions We recommend that you use only Amprobe Power Supply adapter For your own safety you re not able to use the external power supply adapter during Safety Test LOWQ INSULATION TEST lt GROUND TEST rotary Switch positions If you press the START button the Instrument will show the message v REMOVE POWER The symbol HF shows the battery charge If it is completely black the batteries are fully charged while the ___ symbol indicates weak batteries When the batteries are too low to execute the test the instrument will show a warning message In this case interrupt testing and replace the batteries following the procedure described in paragraph 13 2 The instrument is capable of keeping the data stored even though batteries are not installed The Instrument Date and Time settings aren t lost if you change the batteries within 24hours EN 7 A AMPROBE DMIII MULTITEST WARNING For recordings POWER QUALITY function ALWAYS use the external power supply adapter code DMT EXTPS even the instrument allows the operator to perform a recording using internal batt
100. s odd multiples of three are added on the neutral instead of cancelling 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 harmonic 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 harmonic contrast the current flow through the motors making its operation harder and shortening 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 16 8 POWER AND POWER FACTOR DEFINITION In a standard electric installation powered by three sine voltages the following is defined Phase Active Power P V n 1 cos Q n 1 2 3 Phase Apparent Power V I n
101. s subtracted from any continuity test carried out for all the subsequent measurements Note The instrument performs the calibration only if the resistance of the test leads is lower than 5Q EN 14 A AMPROBE DMIII MULTITEST TEST LEADS Before each measurement always assure that the calibration is for the cables in use During a continuity test if the resistance value free of calibration that is the resistance value less the calibration offset value is negative the symbolv is displayed Probably the calibration resistance value stored in the instrument memory is not for the cables in use therefore a new calibration must be performed 6 1 1 1 Procedure to reset test leads calibration parameters To cancel calibration Message _ gt 99 90 parameters it is means that the necessary to perform a a calibration procedure v gt 99 90 than 5Q therefore it with a resistance of will proceed with test leads higher than cours Tog Reset procedure 5Q for example with mA mA open test leads When a cancellation is effected jauro 0 110 the screen to the right FUNC CAL is displayed temporarily EN 15 A AMPROBE DMIII MULTITEST 6 1 2 Measurement Procedure 1 Select the desired mode using the F1 key 2 Connect the black and yellow test leads to T1 and T4 input terminals RE Oo START STOP A respectively 0 9 12 D OH Main Earth Collector
102. s use For this we recommend you to check instrument s setting before execute an ANALYSIS measurement Select the POWER QUALITY rotary switch position By pressing the MENU key the following screen will be displayed MENU GENERAL SAFETY TEST MEMORY ANA Y i M MORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE amp TIME LANGUAGE COUNTRY 4 t It s not possible to enter the MENU during a recording or a Real Time Energy measurement Generally to check instrument s settings you must check ANALYZER CONFIG and RECORDER CONFIG items EN 36 A AMPROBE DMIII MULTITEST 7 1 BASIC SETTING ANALYZER CONFIG Place the rotary switch in the POWER QUALITY position press the MENU key using the F1 F2 keys select the ANALYZER CONFIG item and press the ENTER Key The following page will be displayed ANALYZER CONFIG SYSTEM HS PH4AW FREQUENCY 60HZ CURRENT RANGE 1000A CLAMP TYPE FlexINT TV RATIO 0001 PASSWORD OFF 4 j This page of setting can be confirmed by pressing the ENTER key or cancelled by pressing the ESC key 7 1 1 Type of electrical system under test This parameter allows to select the type of electrical system under test among the following configurations SINGLE single phase system Y 3PH3W 3 wire system three phase system without neutral 3PH4W 4 wire system three phase system with neutral The connections to the instrument inputs will h
103. seseestsneetestsneetsseeneeteneeneetenteneeteneeneeteateneeteateneeteateneeesnteneeteateneeteaen 25 6 3 Meas Phase Sequence Indicator ssszasesaecanucssash ca assatatiSiicinsasjnSuiabssixitsulsSui aeaiosntcbibesch saSiSoritunasstaniisiie 26 6 3 1 Measurement procedure and results of K Md avert crntesiereepiasavo ut ben ann co aheremenatadiimecnmntnns 26 6 3 2 M7 Bali Cases aeieccecie ces ciate cnlettuslenet ienctincusccisiu aa hisaunads ano aaiunasearesiueees 28 6 4 GROUND TEST Soil Resistance and Resistivity Measurement cccseeeceeseeseeeeseeeeeeseeeeesteeeessteeteeseneeeeees 30 6 4 1 Measurement procedure and results of 2 W and 3 W MOdC cccceecesessecesesesesscsesceeseeseseeeeeseatsnsnseeeeeesatensaseeeeeteneees 30 6 4 2 Measurement procedure and results of p Modem eaea e a a a 32 6 4 3 2 W 3 W and p TOURY CASOS norra aea E EE 34 1 POWER QUALITY yirs aa aa nt oats a ER Aaa aAa a a N erat 36 7 14 Basic Setting ANALYZER CONFIG cisessssisiisnassarsescesosasnsiniacesassebasnauchacansttaaispiaaeaientacs iapaasnastsasncaianabpaadaptaseusenbindbeita 37 TAA Type ot electrical system undor teSt erirken rE EAE E E Ea aAA TS 37 fA 2 How tosetthe fundamental Trequency seirian inansa aaa EEN a AEAEE EE 37 Tals How to set the Clamp Typa nn nireari aiara tienaa de Tiaa EAEn Nanaia aa KaR aSa Kaaa dakdak aeaa dada Taaa RSi 38 7 1 4 How to set the Current range cceccccecscseceseesesecseeceecsesessceeeceassnsucac
104. sion 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 instrument see paragraph 4 2 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 after Sw installation EN 74 A AMPROBE DMIII MULTITEST 13 MAINTENANCE 13 1 GENERAL INSTRUCTION 1 The tester you have purchased is a precision instrument Strictly follow the instructions for use and storage reported in this manual to avoid any possible damage or danger during use 2 Do not use this tester under unfavourable conditions of high temperature or humidity Do not expose to direct sunlight 3 Be sure to turn off the tester after use If the instrument is not to be used for a long period you are recommended to remove batteries to avoid acid leakage which may damage the internal circuits of the instrument 13 2 BATTERY REPLACEMENT The symbol HF shows the battery charge If it is completely black the battery are full charge while the Lt symbol indicate weak batteries When the batteries are too low to execute the test the instrument will show a warning message In the case interrupt testing and replace batteries according the following the procedure
105. sponding Pg symbol then Press F3 Use the multifunction keys F1 F2 to position the cursor on the RECORDER CONFIG desired current harmonic and CURRENT HARMONTES use the multifunction keys F3 F4 to select deselect it s Ee selected if marked in black Press ENTER to confirm this page Press ESC to leave this page 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 Example of sub page of the Menu previously CURRENT HARMONICS illustrated EN 41 A AMPROBE DMIII MULTITEST From 3 page of RECORDER CONFIG MENU ENTER RECORDER CONFIG CO GENERATION ON POWER Pg ENERGY Pg Example of 4 page In order to select the POWER to be recorded use the ENTER multifunction keys F1 F2 to position the cursor on the ee ENER orresponding Pg Symbol and then press F3 RECORDER CONFIG Example of POWER sub page 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 42 A AMPROBE DMIII MULTITEST From 3 page of RECORDER CONFIG MENU ENTER 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 p
106. t detects a Resistivity value higher than EASi Oe Message gt 1999 means that 1999kQm the the resistivity value is higher than the maximum instrument will show gt meas rable the screen to the right 1999kam Vd 1V Test 04 pAVG 0 74kQm p DIST 5m FUNC CLR T 4 a This result can be stored pressing the SAVE key twice refer to paragraph 9 1 EN 35 A AMPROBE DMIII MULTITEST 7 POWER QUALITY This function allows the following operations v display in real time the electrical parameters of a single phase system or a three phase system with and without neutral wire and the harmonic analysis of voltage and current conduct a direct Energy measurement without memorizing memorize pressing SAVE key the sampled values of the Parameters present at instrument input generating a Smp record inside instrument memory It will be possible to analyse the memorized data ONLY by transferring it to a PC record simultaneously pressing the START key after a proper setting RMS values of voltage current corresponding harmonics active reactive and apparent powers power factors and cos active reactive and apparent energies voltage anomalies voltage sag and surge with 10ms resolution It will be possible to analyse the recorded data ONLY by transferring them to a PC It s fundamental the Instrument settings correspond to the Installation type under test and accessories i
107. t permits to display all the parameters measurable by the instrument voltages currents active reactive and apparent powers power factors cos and energies see paragraph 7 6 ENERGY function to be used to display active reactive and apparent power power factor cos and energy see paragraph 7 7 More practically we may schematise the right procedure of use the POWER QUALITY function as follows Check and eventually modify the ANALYZER CONFIG settings of the instrument Using F3 and F4 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 RECORDER CONFIG settings meet your requirements Connect the External Power Supply adapter Start the recording by pressing START STOP e ace ae NO EN 46 A AMPROBE DMIII MULTITEST 7 4 VOLTAGE FUNCTION This function permits to display in real time the RMS value of AC DC voltage the peak and Thd values of the 3 phase voltages the waveform and the harmonic spectrum of the 3 phase voltages 7 4 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 used symbols are described below Symbol Description V1 V2 V3 RMS value of voltage phase 1 phase 2 phase 3 respectively V12 V2
108. tegration Period value the Enabling Disabling of Voltage Anomalies 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 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 page Press ESC to leave this page without modifying the existing parameters From this page you can enter the sub page Harmonics which permits 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 4 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 to select the para
109. the 31 06 2005 EN 3 A AMPROBE DMIII MULTITEST 1 SAFETY PRECAUTIONS AND PROCEDURES 1 1 FORWARDS This instrument conforms to the safety standards EN61557 and EN 61010 1 relating to electronic measuring instruments WARNING N For your own safety as well as that of the instrument you are recommended to follow the procedures described in this instruction manual and carefully read all the notes preceded by the symbol A Strictly adhere to the following instructions before and during measurements 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 effect any measurement in case of unusual conditions of the instrument such as deformation breakage leakage of substances absence of display reading etc Do not use the External power supply adapter code DMT EXTPS if you notice deformation or breakage in the case in the wire or in the plugs Pay careful attention when measuring voltages exceeding 25V in particular places building yards swimming pools etc and 50V in ordinary places because of the risk of electric shock Use only cables and accessories approved by Amprobe The following symbols are used in this manual Caution refer to the instructions in this manual
110. the START key The instrument will start the test v MAN Mode The test will take 4 seconds maximum If you keep the START key pressed longer than 4 seconds the test continues until the key is released v TMR mode The test will take the time set If you want to stop the test when it s running press the START STOP key again EN 22 A AMPROBE DMIII MULTITEST 6 2 2 Results of MAN mode At the end of the test if Insulation Resistance the insulation resistance is lower ae during the Test than Rmax see Table2 and the instrument 1 0 7 Duration of the Test generates the e Nominal test Voltage Test mode the instrument emits a double beep Ooo voltage set indicating the positive MA 500V outcome of the test pene Neu and displays a screen similar to the screen to the right In order to evaluate the test you must compare the result with the limits indicated in the Guidelines see Table1 we The displayed result can be stored pressing the SAVE key twice according to paragraph 9 1 Se f the Insulation MQ 05 06 01 Maximum resistance value resistance is higher which can be measured than Rmax see Table2 FJ leso is displayed if a rated voltage of 500V was the instrument emits a 999 MQ selected see Table2 double beep at the end of the test indicating The symbol gt means that the positive outcome the
111. the external power supply adapter code DMT EXTPS even the instrument allows the operator to perform a recording using internal batteries If you press Start a recording without the external power supply adapter code DMT 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 adapter code DMT EXTPS is de energised 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 sophisticated algorithms to prolong the battery life Particularly v The instrument switches OFF the backlight Automatically after 5 seconds v lf the Battery level is too low the Backlight function will be disabled v lf 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 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 ke
112. trument 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 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 ANOM REC ON the Instrument will record Voltage Sag and Surge see paragraph 16 6 OFF the instrument will not record any voltage Sag and Surge V1 V2 V3 V12 V23 or V32 V31 RMS value of the voltage of phase 1 phase 2 phase 3 respectively values of the phase to phase voltages 1 2 2 3 or 3 2 and 3 1 Single phase V1 3 wires Vie V32 V31 4 wires Vi V2 V3 Thd DC 01 49 Voltage Total Harmonic Distortion DC Component 01 49 Harmonics respectively Thd 01 03 05 07 Vref only if ANOM REC flag has been set ON RMS reference value for Voltage used in Voltage Anomalies detection Voltage Sag and Surge The Reference is a Voltage Phase to Neutral for Single Ph
113. ument memory a record of Smp type and the instantaneous values of voltage and current present at the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of displayed data All previous functions remain however available When the HOLD function is activated the word is displayed When this function is enabled it s not possible to record nor perform energy EN 49 A AMPROBE DMIII MULTITEST measurements This function is disabled during a recording or an energy measurement MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 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 EN 50 A AMPROBE DMIII MULTITEST 7 4 4 WAVE mode By selecting the WAVE mode one of the screens below will be displayed according to the settings made as per paragraph 7 1 The screens show the waveform of the phase or phase to phase voltage 27 09 00 Lie 3os 12 2 1 0900 0 LRSL 2 T0900 L23312 Example of screen in Example of screen in 3 Example of screen in 4 single phase system wire three phase system wire three phase system The symbols used are described in Tab 1 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are active s Fi only for thr
114. values measured by positioning the rods at growing distances a must be quoted in a graph According to the resulting curve suitable rods will be chosen The test result can be affected by metal parts buried underground e g pipes cables or other rods in case of doubts take a second measurement positioning the rods at an equal distance a but rotating their axis by 90 2 measurement compared to the previous measurement the rods are rotated by 90 1 measurement the rods are positioned at a distance a The resistivity value is calculated with the following formula p 2naR Where p specific resistivity of the ground a distance between the rods m R resistance measured by the instrument Q EN 89 A AMPROBE DMIII MULTITEST The measuring method allows the operator to define the specific resistance up to the depth corresponding approximately to the distance a between the rods If you increase the distance a you can reach deeper ground layers and check the ground homogeneity After several p measurements at growing distances a you can trace a profile like the following ones after which the most suitable rod is chosen Curve1 as p decreases only in depth it s possible to use only a rod in depth e gt 2 2 a am Curve2 as p decreases only until the depth A it s not useful to increase the depth o
115. we The displayed result can be stored pressing the SAVE key twice according to paragraph 9 1 EN 24 A AMPROBE DMIII MULTITEST 6 2 4 MAN and TIMER mode faulty cases f the instrument detects the External Power supply adapter the instrument will show the message displayed to the right e if instrument detects a Voltage between the input terminals higher than 15V the instrument does not perform the test and displays the screen to the right for 5 seconds the If the instrument can t generate the Nominal Test Voltage it will emit a long beep and displays a screen similar to the screen to the right MO 05 06 01 MOQO 15s v REMOVE POWER MAN 500V FUNC VNOM MQ 05 0601 V 15s v VOLT IN INPUT MAN 500V FUNC VNOM Disconnect the External Power Supply Adapter ATTENTION the test can t be executed Check that the circuit is not energized This result can t be saved MO 05 06 01 Vv 1 17 MOA 107V MAN 500V o RATo the test of Insulation Resistance resistance Riso was taken at a voltage value lower than the set rated voltage Low insulation case This case occurs under low insulation conditions or in the presence of capacitance on the installation FUNC VNOM EN 25 Test Duration A AMPROBE DMIII MULTITEST we The displayed result
116. ween the two Use several rods in parallel and moisten the surrounding ground if the instrument does not manage to supply the current necessary to perform the test because of an high earth resistance Ground resistance measurement for small Ground plant Method for big Ground plant Also this procedure is based on the voltamperometric method but it s mainly used when it s difficult to position the auxiliary current rod at a distance corresponding to fivefold the diagonal of the area of the earth equipment Position the current probe at a distance equal to the diagonal of the area of the earth equipment To make sure that the voltage probe is positioned outside the area affected by the rod under test take more measurements first positioning the voltage probe at half way between the rod and the current probe then moving the probe both towards the earth rod and towards the current probe Use several rods in parallel and moisten the surrounding ground if the instrument does not manage to supply the current necessary to perform the test because of an high earth resistance A AMPROBE DMIII MULTITEST 16 5 Ground Resistivity Measurement PURPOSE OF THE TEST This test analyzes the resistivity value of the ground in order to define the type of rods to use EQUIPMENT PARTS TO BE TESTED For the resistivity test admissible values do not exist The various
117. with 200MA Test Current c ceceseeseeceseesesteseseesesneeeeseseeeeessneeteessneeteiseneeteesenseeeeseneeeeess 13 641 Calibrating the test leads CAL Mode ais cicscsainina uniia a E and aiavadarimavinant 14 6 1 2 Measurement Procedure seirian aeaaea aaa aana dadea aaaeeeaa daa daanin 16 6 1 3 Results of AUTO mode ccceccceesescsceeseesesesecseeceseacsusaceeeceaesnsucaceeeansnsacececeaeacssaceneceasensesaceeeceatensaseteteesasenseseseeeeteneees 17 6 1 4 Results of RT and RT modes cccccceesesecsesesecsesesseseeceaesnsucseesesceesnsucececeaeaesusaceneceasansusaceteceatsnsaseseneesanenseseeeeeteneees 17 6 1 5 AUTO RT RT faulty CASCS oe cecceccececsessessessseessneesesnsesesseesessesaessssessassnsesssneestsnseatsneeecsasesesaseaneensaneensaneeeseseeseneees 19 6 2 INSULATION TEST Insulation Resistance Measurement ccsescssccsssssesssssessessesnssssesessssnsnseeeseessnsseseeesaseneneeees 21 6 2 1 Measurement Procedures cscsta nsuanviidanwsnnals aunvaimdiidaaraaaloqiova seid iiaa a ard niania 21 6 2 2 Results of MAN MOE s cccceccceesesecseseseceesesseseeceseaesusaceeeceatensuceceescansnsucaceceaeansuseceneceasensuseceeeseatensasesenesatensaseseeeeteneets 23 6 2 3 Results of TMR MOde ccccecccescesessesesessesesecseecescsesusacseeceatansucaceeescacsesucaceeeasacssaceeeceasensuseceeeceasansaseseneesanensesesestteneees 24 6 2 4 MAN and TIMER mode faulty CASES tesesseseese
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