HT COMBI521 User Manual Download Page 38

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COMBI521

EN - 38

If the instrument detects a voltage

higher than 10V

at its

terminals, it does not perform the test, emits a prolonged
acoustic signal and displays a screen like the one at the
side.



15/10 – 18:04

V t

- - - M



- - - V

- - - s

Vin >10V

MAN 500V 1.00M



L-PE

MODE

Vtest Lim. FUNC

Summary of Contents for COMBI521

Page 1: ... Copyright HT ITALIA 2021 Release EN 1 01 27 09 2021 COMBI521 User manual ...

Page 2: ... RPE Continuity of protective conductors 23 6 3 1 TMR mode 25 6 3 2 mode 26 6 3 3 Anomalous situations 27 6 4 Lo Continuity of protective conductors with 10A 28 6 4 1 Anomalous situations 30 6 5 M Measurement of insulation resistance 31 6 5 1 TMR mode 35 6 5 2 AUTO mode 36 6 5 3 Anomalous situations 37 6 6 RCD Test on differential switches 39 6 6 1 AUTO mode 42 6 6 2 AUTO mode 43 6 6 3 x x1 x5 mod...

Page 3: ...ristics 116 10 2 Reference guidelines 121 10 3 General characteristics 122 10 4 Environment 122 10 4 1 Environmental conditions for use 122 10 5 Accessories 122 11 SERVICE 123 11 1 Warranty conditions 123 11 2 Service 123 12 THEORETICAL APPENDIXES 124 12 1 Continuity of protective conductors 124 12 2 Insulation resistance 125 12 2 1 Measurement of polarization index PI 126 12 2 2 Dielectric Absorp...

Page 4: ...e following symbols are used in this manual CAUTION observe the instructions given in this manual improper use could damage the instrument its components or create dangerous situations for the operator High voltage danger electrical shock hazard Double insulation AC voltage or current DC voltage or current Connection to earth The symbol indicates that the instrument must not be connected to system...

Page 5: ...4 Measured circuits reads circuits are divided into the following measurement categories Measurement category IV is for measurements performed at the source of a low voltage installation Examples are electricity meters and measurements on primary overcurrent protection devices and ripple control units Measurement category III is for measurements performed on installations inside buildings Examples...

Page 6: ...asurement of percentage voltage drop on mains Lo Continuity test of earth protective and equipotential conductors with test current higher than 10A by means of optional accessory EQUITEST RCD Test on molded case standard General and Selective RCDs of type A and AC and B of the following parameters tripping time tripping current contact voltage AUTO Automatic sequence measurements of RA RCD M funct...

Page 7: ...ncy please contact the Dealer In case the instrument should be returned please follow the instructions given in 11 3 2 INSTRUMENT POWER SUPPLY The instrument is powered by 6x1 5V alkaline batteries of type AA LR06 supplied with the instrument The symbol indicates the charge level of the batteries To replace the batteries refer to 9 2 The instrument is capable of keeping data stored even without ba...

Page 8: ...for remote switch probe 2 B1 B3 B4 inputs 3 In1 input Fig 2 Description of the upper part of the instrument CAUTION The instrument checks voltage on PE by comparing the voltage at B4 input to the ground potential induced on the instrument s side through the user s hand Therefore in order to check voltage on PE it is mandatory to hold the instrument case on the left or on the right side 4 2 DESCRIP...

Page 9: ...the system for each selected function key continuos pressure to adjust the display backlight 4 4 DISPLAY DESCRIPTION The display is a COG LCD module 128x128 points The first line of the display indicates the type of active measurement the date time and the battery charge indication R P E 15 10 18 04 R I t e s t m A Measuring STD 2 00 0 12 MODE Lim 4 5 INITIAL SCREEN When switching on the instrumen...

Page 10: ...r and confirming with ENTER the instrument shows the desired measurement on the display 5 1 SET INSTRUMENT SETTINGS Move the cursor to SET by means of the arrow keys and confirm with ENTER Subsequently the displays shows the screen which allows accessing the various instrument settings The settings will remain valid also after switching off the instrument S E T 15 10 18 04 L a n g u a g e C o u n ...

Page 11: ... Real Nom With the Nom option the instrument shows the normalized value of trip out current referred to the nominal current Example for RCD type A with Idn 30mA the actual value of normalized trip out current can be up to 30mA With the Real option the instrument shows the actual value of trip out current by considering the coefficients indicated by guidelines IEC EN61008 and IEC EN61009 1 414 for ...

Page 12: ...he first test as soon as the instrument detects a steady input voltage within the allowed range it runs the test automatically with no need to press the GO STOP key on the instrument or the START key on the remote switch probe 5 1 6 Date and time Move the cursor to Date and time by means of the arrow keys and confirm with ENTER Subsequently the display shows the screen which allows setting the sys...

Page 13: ... with the technical specifications of the instrument and the RCD tables see 10 1 empty cells of RCD tables mean unavailable situations CAUTION Testing the RCD s tripping time causes the RCD s tripping Therefore check that there are NO users or loads connected downstream of the RCD being tested which could be damaged by a system downtime Disconnect all loads connected downstream of the RCD as they ...

Page 14: ... measurement correct The following values are available 0 05M 0 10M 0 23M 0 25M 0 50M 1 00M 100M CAUTION Make sure to select the correct value when setting the RCD s test current If setting a current higher than the nominal current of the device being tested the RCD would be tested at a current higher than the correct one thus facilitating a faster tripping of the switch The symbol indicates that ...

Page 15: ... on the display The trip out current and the trip out time values appear on the display In case of a positive result of all the tests sequentially performed during the RCD test Trcd and Ircd parameters see 12 4 the instrument goes on with the test on insulation resistance between L N L PE and N PE conductors A U T O 15 10 18 04 T N I s c 1 4 3 7 A Z L N 0 1 6 Ω I f c 1 2 7 7 A Z L P E 0 1 8 Ω T r ...

Page 16: ...4 T N I s c 1 4 3 7 A Z L N 0 1 6 Ω I f c 1 2 7 7 A Z L P E 0 1 8 Ω T r c d 3 0 0 m s I r c d 3 3 0 m A F R E Q 5 0 0 0 H z U t 1 5 V V L N 2 3 2 V V L P E 2 3 1 V N O T O K 30mA 500V 1 00M I n Type Vtest Lim 11 In case of a negative result of the Insulation test insulation resistance minimum limit threshold the auto test is automatically blocked the message NOT OK is shown and the screen to the s...

Page 17: ... 23M 0 25M 0 50M 1 00M 100M CAUTION Make sure to select the correct value when setting the RCD s test current If setting a current higher than the nominal current of the device being tested the RCD would be tested at a current higher than the correct one thus facilitating a faster tripping of the switch The symbol indicates that the test cables or the plug cablehas already been calibrated in the L...

Page 18: ...appear on the display In case of a positive result of all the tests sequentially performed during RCD test Trcd and Ircd parameters see 12 4 the instrument goes on with the test on insulation resistance between L N L PE and N PE conductors A U T O 15 10 18 04 T T R A 4 8 8 U t 1 5 V T r c d 2 5 m s I r c d 2 7 0 m A F R E Q 5 0 0 0 H z V L P E 2 3 1 V V L N 2 3 2 V M e a s u r i n g 30mA 500V 1 00...

Page 19: ...04 T T R A 4 8 8 U t 1 5 V T r c d 3 0 0 m s I r c d 3 3 0 m A F R E Q 5 0 0 0 H z V L P E 2 3 1 V V L N 2 3 2 V N O T O K 30mA 500V 1 00M I n Type Vtest Lim 11 In case of a negative result of the Insulation test insulation resistance minimum limit threshold the auto test is automatically blocked the message NOT OK is shown and the screen to the side is displayed A U T O 15 10 18 04 T T R L N 9 9 ...

Page 20: ... N Ω I f c A Z L P E Ω T r c d m s I r c d m A F R E Q 5 0 0 0 H z U t V V L P E 1 5 V V L N 1 5 V V o l t a g e 1 0 0 V 30mA 500V 1 00M I n Type Vtest Lim 3 If the instrument detects that the phase and neutral leads are inverted it does not carry out the test and a screen similar to the one reported to the side is displayed Rotate the mains plug or check the connection of the measuring cables A U...

Page 21: ...nd confirm with ENTER Subsequently the instrument displays a screen similar to the one reported here to the side D M M 15 10 18 04 FREQ 0 00 Hz VL N 0 V VL PE 0 V VN PE 0 V 2 Insert the green blue and black connectors of the three pin plug cable into the corresponding inputs B1 B3 and B4 of the instrument As an alternative use the single cables and apply the relevant alligator clips to the free en...

Page 22: ...quency of L N voltage are shown on the display Press the GO STOP key to enable disable the HOLD function in order to fix the value on the display D M M 15 10 18 04 FREQ 50 00 Hz VL N 230 V VL PE 230 V VN PE 2 V HOLD CAUTION These data cannot be saved in the instrument s internal memory ...

Page 23: ...sufficiently long time to be able to move the tip on the conductors being examined while the instrument performs the test For the whole duration of measurement the instrument emits a short acoustic signal every 3 seconds The user shall touch the metal part under test while the instrument beeps If during measurement a result takes a value higher than the set limit the instrument emits a continuous ...

Page 24: ...9 in steps of 0 01 Time TMR mode this virtual key allows you to set the duration of the measurement in the range 3s 99s in steps of 3s 3 Insert the blue and black connectors of the single cables into the corresponding inputs B4 and B1 of the instrument Apply the relevant alligator clips to the free ends of the cables It is also possible to use the remote switch probe by inserting its multipolar co...

Page 25: ...ower than the set limit threshold or NOT OK in case of a negative result value higher than the set limit threshold R P E 15 10 18 04 R I t e s t 0 2 2 2 1 2 m A O K STD 2 00 0 21 MODE Lim 6 3 1 TMR mode 1 With the arrow keys select the TMR option in the Mode section The instrument displays a screen like the one shown to the side Set the measurement duration in the Time section and follow the steps...

Page 26: ...uctor to be tested as indicated in Fig 10 3 Press the GO STOP key on the instrument or the START key on the remote switch probe The instrument starts the calibration procedure of the cables immediately followed by the verification of the compensated value CAUTION If message Measuring appears on the display the instrument is performing measurement If message Verify appears on the display the instru...

Page 27: ...ument detects a calibration reset performing the operation with open terminals the instrument gives out a long sound and displays a screen like the one to the side R P E 15 10 18 04 R I t e s t m A Z e r o R e s e t STD 2 00 MODE Lim 4 When using the mode in case the instrument detects a resistance higher than 5 at its terminals it emits a prolonged acoustic signal resets the compensated value and...

Page 28: ... parallel with the item to be tested or by transient currents Continuity test is carried out by supplying a current higher than 10A in case the resistance does not exceed ca 0 7 including resistance of the test cables The 4 wire method allows extending the test leads without any preliminary calibration 1 Press the MENU key move the cursor to Lo in the main menu by means of the arrow keys and confi...

Page 29: ...EQUITEST accessory for each details 6 Press the GO STOP key on the instrument The instrument will start the measurement At the end of measurement the instrument shows on the display the message OK in case of a positive result value lower than the set limit threshold or NOT OK in case of a negative result value higher than the set limit threshold L o 15 10 18 04 R I t e s t 0 3 2 8 1 4 7 6 A OK 0 5...

Page 30: ...t does not detect the EQUITEST accessory it displays a screen like the one to the side Check the connections with the accessory L o 15 10 18 04 R I t e s t A A c c e s s o r y n o t d e t e c t e d 0 500 Conn Lim INFO 3 The instrument shows on the display the message NOT OK in case of a positive result value lower than the set limit threshold but with test current lower than 10A as indicated in th...

Page 31: ...de TMR the test is carried out between the L PE conductors and has a programmable duration in the range 3s 999s in steps of 1s by pressing the GO STOP key on the instrument or START of the remote switch probe It is possible to perform DAR Dielectric Absorbtion Ratio duration test for test time 60s and PI Polarization Index for test time 600s 10min see 12 2 1 and 12 2 2 AUTO the instrument performs...

Page 32: ...521 EN 32 Fig 13 Insulation between L N PE by means of mains plug MAN and AUTO Fig 14 Insulation between L PE by means of mains plug TMR mode Fig 15 Insulation between L PE by means of single cables TMR mode ...

Page 33: ...m limit threshold in order to consider the measurement correct The following values are available 0 05M 0 10M 0 23M 0 25M 0 50M 1 00M 100M FUNC This key allows setting the connection type L N L PE or N PE in MAN mode Temp Only in TMR mode this virtual key allows setting the duration time of test in the range 3s 999s 3 We suggest setting the value of the voltage supplied while measuring and the min...

Page 34: ...ld remain charged with a dangerous voltage due to the stray capacitances of the system 7 Regardless of the operating mode selected the instrument at the end of each test applies a resistance to the output leads to discharge the stray capacitances in the circuit 8 At the end of measurement fixed duration of 3s the instrument shows on the display the message OK in case of a positive result value hig...

Page 35: ...ase of a positive result value higher than the set minimum threshold or NOT OK in case of a negative result value lower than the minimum limit set M 15 10 18 04 R 1 0 2 M Vt 523V T 10 s PI DAR OK TMR 500V 1 00M 10s MODE Vtest Lim Time 3 With a measurement duration 60s the instrument shows the indication of the DAR parameter Dielectric Absorbtion Ratio as shown in the screen to the side M 15 10 18 ...

Page 36: ... M Vt V RL PE M Vt V RN PE M Vt V AUTO 500V 1 00M MODE Vtest Lim 2 Press the GO STOP key on the instrument or the START key on the remote switch probe The instrument starts the automatic sequential measurement of the insulation resistance between L N L PE and N PE respectively by showing the Measuring message The instrument shows the message OK on the display in case of a positive result of each t...

Page 37: ... side M 15 10 18 04 R V t T 0 2 9 M 5 3 4 V 3 s NOT OK MAN 500V 1 00M L PE MODE Vtest Lim FUNC 3 In AUTO mode if the insulation measurement L N is 50k 0 05M all the tests are completed or if the STOP key has been pressed if RL PE and RN PE Lim and Vt Vnom the instrument shows a screen like the one at the side Disconnect the loads and resume the test M 15 10 18 04 RL N 0 01M Vt 15 V RL PE 999 M Vt ...

Page 38: ...detects a voltage higher than 10V at its terminals it does not perform the test emits a prolonged acoustic signal and displays a screen like the one at the side M 15 10 18 04 R V t T M V s Vin 10V MAN 500V 1 00M L PE MODE Vtest Lim FUNC ...

Page 39: ...tically with a leakage current equal to half once or five times the set value of nominal current and with a leakage current in phase with the positive and negative half wave of the mains voltage and also real tripping current x the instrument performs tripping time measurement with a leakage current equal to half the set value of nominal current with the positive and negative half wave of the main...

Page 40: ...single phase 230V system by means of mains plug Fig 18 Connection for single phase 230V system with single cables and remote switch probe Fig 19 Connection for 400V N PE three phase system by means of single cables and remote switch probe ...

Page 41: ...ral settings of the instrument see 5 1 3 R C D 15 10 18 04 TT T Ut ms V FREQ 0 00Hz VL PE 0V VL N 0V X1 30mA MODE I n Type Ut 2 Use the keys to select the parameter to be modified and the keys to modify the parameter value MODE The virtual key allows setting the measuring mode of the instrument which may be AUTO x x1 x5 I n The virtual key allows setting the nominal value of the RCD s tripping cur...

Page 42: ...t the measurement R C D 15 10 18 04 T T 0 1 8 0 X 1 3 8 m s m s X 5 m s m s X m s m s F R E Q 5 0 0 0 H z U t V V L N 2 3 2 V V L P E 2 3 1 V M e a s u r i n g AUTO 30mA MODE I n Type Ut CAUTION If message Measuring appears on the display the instrument is performing measurement During this whole stage do not disconnect the test leads of the instrument from the mains 6 The AUTO mode provides for t...

Page 43: ... 3 2 V M e a s u r i n g AUTO 30mA MODE I n Type Ut CAUTION If message Measuring appears on the display the instrument is performing measurement During this whole stage do not disconnect the test leads of the instrument from the mains 6 The AUTO mode provides for the automatic execution of 8 measurements in a sequence Ramp with phase 0 the RCD must trip reset the switch message Resume RCD is shown...

Page 44: ...ey on the remote switch probe or use the AutoStart feature see 5 1 5 The instrument will start the measurement R C D 15 10 18 04 TT T Ut ms V FREQ 0 00Hz VL PE 0V VL N 0V Measuring X1 30mA MODE I n Type Ut CAUTION If message Measuring appears on the display the instrument is performing measurement During this whole stage do not disconnect the test leads of the instrument from the mains 6 When the ...

Page 45: ...his whole stage do not disconnect the test leads of the instrument from the mains 6 According to standard EN61008 the test for selective RCDs requires an interval of 60 seconds between the tests The mode is therefore unavailable for selective RCDs both of A and of AC type 7 When the RCD trips and breaks the circuit if the tripping current and tripping time are within the limits reported in 12 4 th...

Page 46: ...R C D 15 10 18 04 TT T Ut ms V FREQ 0 00 Hz VLPE 100V VL N 100V Voltage 100V X1 30mA MODE I n Type Ut 3 If the instrument detects a L N or L PE voltage higher than the maximum limit 265V it does not carry out the test and displays a screen like the one to the side Check the connection of measuring cables R C D 15 10 18 04 TT T Ut ms V FREQ 50 00 Hz VLPE 265V VL N 265V Voltage 265V X1 30mA MODE I n...

Page 47: ...side is displayed Check the connection of measuring cables R C D 15 10 18 04 TT T Ut ms V FREQ 50 00Hz VL PE 231V VL N 1V Exchange L PE X1 30mA MODE I n Type Ut 7 If the instrument detects the absence of the signal to terminal B3 PE conductor it provides the warning screen shown to the side and blocks the execution of the tests R C D 15 10 18 04 TT T Ut ms V FREQ 50 00 Hz VL PE 114V VL N 231V Miss...

Page 48: ... Lim X1 30mA MODE I n Type Ut 11 If the RCD does not trip within the maximum duration of the test the instrument gives a long acoustic signal which signals the negative result of the test and then displays a screen similar to the one reported here to the side Check that the set type of RCD matches the type of RCD being tested R C D 15 10 18 04 TT T Ut 999 1 ms V FREQ 50 00 Hz VL PE 231V VL N 232V ...

Page 49: ...ard STD measurement of the fault loop impedance between the phase conductor and the earth conductor and calculation of the prospective phase to earth short circuit current Ra Fault loop impedance without causing the protections tripping in TN systems see 12 7 and overall earth resistance TT systems with neutral 3 wire and without neutral 2 wire see 12 8 CAUTION The instrument checks voltage on PE ...

Page 50: ...e systems with cables and remote probe Fig 24 P N P PE test for 400V N PE three phase with single cables and remote probe Fig 25 P P measurement for 400V N PE three phase systems Fig 26 P PE P N test for 400V PE systems by means of single cables and remote probe ...

Page 51: ...gle cables and remote probe Fig 28 P PE 2 wire test for single phase two phase 230V systems with mains plug Fig 29 P PE 2 wire test for single phase two phase systems with cables and remote probe Fig 30 P PE 2 wire test for three phase with single cables and remote probe ...

Page 52: ...orms the measurement and verifies the condition imposed by the guidelines Should it be reached the instrument gives a positive outcome see 12 6 12 8 12 9 Br Cap Check of protection s breaking capacity The instrument detects the value of the line impedance upstream of the measured point calculates the maximum value of short circuit current and gives a positive outcome if the value is lower than the...

Page 53: ...im other Nations Table 1 Conditions of positive outcome depending on the test parameters Where Empty cells Mode unavailablefor this particular combination of electric system Isc L L_Min2P Prospective short circuit current minimum two phase Phase Phase Isc L N_Max Prospective short circuit current maximum Phase Neutral Isc L N_Min Prospective short circuit current minimum Phase Neutral Isc L PE_Max...

Page 54: ...ert the ZEROLOOP metallic accessory into the three banana connectors of the measurement cables L N PE or into the metal connectors of the mains plug differently for the various types depending on the country of use as shown in the following Test leads SHUKO plug UK ains plug ITA plug SWI plug DEN plug AUS CHN plug USA plug Table 2 Connection of ZEROLOOP accessory 3 Press the GO STOP key to start c...

Page 55: ...rformed by the user for example for the insertion of cables with different lengths To reset the saved calibration value remove the ZEROLOOP accessory and press the GO STOP key The symbol disappears and the screen to the side appears on the display L O O P 15 10 18 04 TN RL RN RPE FREQ 0 00Hz VL PE 0V VL N 0V Zero reset CAL FUNC ...

Page 56: ...L PE MODE the virtual key allows setting the instrument s operating mode Select the STD option 3 If possible disconnect all loads connected downstream of the point to be measured as the impedance of these users could distort the test results Perform the preliminary calibration of the test leads as described in 6 7 2 4 Insert the green blue and black connectors of the three pin plug cable into the ...

Page 57: ...lue of the prospective short circuit current Ipfc is shown in the upper part of the display while the Line Fault loop ZL PE impedance is shown in the bottom part of the display The Standard Std prospective short circuit current Isc is calculated using the following formulas ZMEAS measured L L L N L PE loop impedance UNOM nominal voltage depending on the system PE L NOM PE SCL Z U I N L NOM N SCL Z...

Page 58: ...ing current expressed in kA at which the protection must break the circuit in the range 0 1kA 999kA 3 If possible disconnect all loads connected downstream of the point to be measured as the impedance of these users could distort the test results Perform the preliminary calibration of the test leads as described in 6 7 2 4 Insert the green blue and black connectors of the three pin plug cable into...

Page 59: ...3V VL L 387V Measuring L L Br Cap 15kA FUNC MODE Lim 7 In case of positive result IpscMAX Lim the OK outcome message is shown on the display L O O P 15 10 18 04 TN max psc I ZL L 3019 0 16 A FREQ 50 00Hz VL PE 223V VL L 387V OK L L Br Cap 6 0kA FUNC MODE Lim 8 In case of negative result IpscMAX Lim the NOT OK outcome message is shown on the display L O O P 15 10 18 04 TN max psc I ZL L 7236 0 07 A...

Page 60: ...63A 80A 100A 125A 160A 200A MCB curve C 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16A 20A 25A 32A 40A 50A 63A 80A 100A 125A 160A 200A MCB curve D K 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16A 20A 25A 32A 40A 45A 50A 63A 80A 100A 125A 160A 200A Fuse gG 2A 4A 6A 8A 10A 12A 13A 16A 20A 25A 32A 35A 40A 50A 63A 80A 100A 125A 160A 200A 250A 315A 400A 500A 630A 800A 1000A 1250A Fuse aM 2A 4A 6A 10A 12A 16A 20A 2...

Page 61: ... VL L 387V Measuring L L TripT 16A 0 2s FUNC MODE MCB C Time 7 In case of positive result minimum short circuit current interrupted by the protection device within the time indicated by the performed selections the OK message and the screen to the side are displayed by the instrument L O O P 15 10 18 04 TN min psc I ZL L 212 1 03 A FREQ 50 00Hz VL PE 223V VL L 387V OK L L TripT 16A 0 2s FUNC MODE ...

Page 62: ...5A 50A 63A 80A 100A 125A 160A 200A MCB curve C 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16A 20A 25A 32A 40A 50A 63A 80A 100A 125A 160A 200A MCB curve D K 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16A 20A 25A 32A 40A 45A 50A 63A 80A 100A 125A 160A 200A Fuse gG 2A 4A 6A 8A 10A 12A 13A 16A 20A 25A 32A 35A 40A 50A 63A 80A 100A 125A 160A 200A 250A 315A 400A 500A 630A 800A 1000A 1250A Fuse aM 2A 4A 6A 10A 12A 16...

Page 63: ...pfc I ZL PE A FREQ 50 00Hz VL PE 223V Measuring Ra 2Wire 16A 0 2s FUNC MODE MCB C Time 7 In case of positive result ZL PE to limit impedance relative to protection device within the specified time see 12 10 the OK message and the screen to the side are displayed by the instrument L O O P 15 10 18 04 TN min pfc I ZL PE 1213 0 18 A FREQ 50 00Hz VL PE 223V OK Ra 2Wire 16A 0 2s FUNC MODE MCB C Time 8 ...

Page 64: ...32A 40A 45A 50A 63A 80A 100A 125A 160A 200A MCB curve C 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16A 20A 25A 32A 40A 50A 63A 80A 100A 125A 160A 200A MCB curve D K 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16A 20A 25A 32A 40A 45A 50A 63A 80A 100A 125A 160A 200A Fuse gG 2A 4A 6A 8A 10A 12A 13A 16A 20A 25A 32A 35A 40A 50A 63A 80A 100A 125A 160A 200A 250A 315A 400A 500A 630A 800A 1000A 1250A Fuse aM 2A 4A 6A 1...

Page 65: ... 16A 0 2s FUNC MODE MCB C Time 7 In case of positive result ZL PE to limit impedance relative to protection device within the specified time see 12 10 the OK message and the screen to the side are displayed by the instrument A U T O 15 10 18 04 T N I s c 1 3 6 5 A Z L N 0 1 6 Ω I f c 1 2 1 3 A Z L P E 0 1 8 Ω F R E Q 5 0 0 0 H z V L N 2 3 2 V V L P E 2 3 1 V OK Ra 3Wire 16A 0 2s FUNC MODE MCB C Ti...

Page 66: ... test leads as described in 6 7 2 4 Insert the green blue and black connectors of the three pin plug cable into the corresponding inputs B3 B4 and B1 of the instrument As an alternative use the single cables and apply the relevant alligator clips to the free ends of the cables It is also possible to use the remote switch probe by inserting its multipolar connector into the input B1 Connect the mai...

Page 67: ... mA V FREQ 50 00Hz VL PE 232V VL N 234V OK L PE Ut FUNC MODE 8 In case of negative result contact voltage at the point 50V or 25V the NOT OK message and the screen to the side are displayed by the instrument L O O P 15 10 18 04 IT Ipfc Ut 999 50 mA V FREQ 50 00Hz VL PE 232V VL N 234V NOT OK L PE Ut FUNC MODE 9 Press the SAVE key to store the test result in the instrument s memory see 7 1 or the ES...

Page 68: ...ent which may be 6mA 10mA 30mA 100mA 300mA 500mA 650mA 1000mA Press the SAVE key to save the selected parameter and go back to the measurement screen 3 If possible disconnect all loads connected downstream of the point to be measured as the impedance of these users could distort the test results Perform the preliminary calibration of the test leads as described in 6 7 2 4 Insert the green and blac...

Page 69: ... Utlim I n the OK message and the screen to the side are displayed by the instrument The screen contains the contact voltage value on the secondary display L O O P 15 10 18 04 TT RA Ut 346 10 4 V FREQ 50 00Hz VL PE 232V OK Ra 2Wire 30mA FUNC MODE I n 8 In case of negative result overall earth resistance RA Utlim I n the NOT OK message and the screen to the side are displayed by the instrument The ...

Page 70: ... 80A 100A 125A 160A 200A MCB curve C 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16A 20A 25A 32A 40A 50A 63A 80A 100A 125A 160A 200A MCB curve D K 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16A 20A 25A 32A 40A 45A 50A 63A 80A 100A 125A 160A 200A Fuse gG 2A 4A 6A 8A 10A 12A 13A 16A 20A 25A 32A 35A 40A 50A 63A 80A 100A 125A 160A 200A 250A 315A 400A 500A 630A 800A 1000A 1250A Fuse aM 2A 4A 6A 10A 12A 16A 20A 25A ...

Page 71: ...31V Measuring L PE Ut 16A 0 2s FUNC MODE MCB C Time 15 In case of positive result calculated minimum short circuit current HIGHER than tripping current of the protection device within the specified time see 12 6 the OK message and the screen to the side are displayed by the instrument L O O P 15 10 18 04 TN min pfc I ZL PE 214 1 03 A FREQ 50 00Hz VL PE 232V VL N 231V OK L PE Ut 16A 0 2s FUNC MODE ...

Page 72: ...d L O O P 15 10 18 04 TN Ipfc ZL PE A FREQ 50 00Hz VL PE 100V VL N 100V Voltage 100V L PE STD FUNC MODE 3 If the instrument detects a L N or L PE voltage higher than the maximum limit 265V it does not carry out the test and displays a screen like the one to the side Check the connection of measuring cables L O O P 15 10 18 04 TN Ipfc ZL PE A FREQ 50 00Hz VL PE 265V VL N 265V Voltage 265V L PE STD ...

Page 73: ...locks the execution of the tests L O O P 15 10 18 04 TN Ipfc ZL PE A FREQ 50 00Hz VL PE 231V VL N 115V Missing N L PE STD FUNC MODE 7 If the instrument detects the absence of the signal to terminal B3 PE conductor it provides the warning screen shown to the side and blocks the execution of the tests L O O P 15 10 18 04 TN Ipfc ZL PE A FREQ 50 00Hz VL PE 115V VL N 231V Missing PE L PE STD FUNC MODE...

Page 74: ... are inverted it does not carry out the test and a screen similar to the one reported to the side is displayed Check the connection of measuring cables L O O P 15 10 18 04 TN Ipfc ZL PE A FREQ 50 00Hz VL PE 231V VL N 1V Echange L PE L PE STD FUNC MODE 11 If the instrument detects a dangerous contact voltage Ut above the set limit of 25V or 50V in the starting pre test it provides the warning scree...

Page 75: ...s not connected to the instrument or not powered directly by the mains L o Z 15 10 18 04 TN Ipsc ZL L A m R m X m FREQ Hz VL L V IMP57 not detected L L STD FUNC MODE 2 Connect the IMP57 to the instrument via the cable C2001 and to the powered system via the input terminals C1 C2 and P1 P2 placed on it see the IMP57 user manual The following screen appears on the display L o Z 15 10 18 04 TN Ipsc Z...

Page 76: ... by means of the arrow keys and confirm with ENTER Subsequently the instrument displays a screen similar to the one reported here to the side 1 2 3 15 10 18 04 TN 1T MODE 2 Insert the black lead connector into the corresponding input B1 of the instrument As an alternative use the single cable and apply the relevant alligator clips to the free ends of the cables It is also possible to use the remot...

Page 77: ...howing the Disconnect L1 message as shown in the screen to the side 1 2 3 15 10 18 04 TN Disconnect L1 1T MODE 5 Under these conditions connect the alligator clips the tips or the remote switch probe to phase L2 in accordance to Fig 31 or Fig 32 The Touch L2 message is shown on the display to indicate that the instrument is waiting to be connected to the L2 phase of the system being tested Touch t...

Page 78: ... 8 At the end of the test if the two detected voltages are in phase phase concordance between two distinct three phase systems the instrument displays a screen like the one to the side result 11 and the OK message 1 2 3 15 10 18 04 TN 1 1 OK 1T MODE 9 Press the SAVE key to store the test result in the instrument s memory see 7 1 or the ESC MENU key to exit the screen without saving and go back to ...

Page 79: ...ument detects an input L PE voltage exceeding 265V it will display a screen like the one to the side 1 2 3 15 10 18 04 TN Voltage 265V 1T MODE 3 If between the test start and the acquisition of the first voltage or between the acquisition of the first and second voltage a time longer than approx 10s has elapsed the instrument displays a screen like the one to the side It is necessary to repeat the...

Page 80: ...rrent value detected while measuring LEAK 15 10 18 04 M A X m A m A 1A 30mA FS Lim 2 Use the arrow keys to select the parameter to be modified and keys to change the parameter s value FS This key allows setting the full scale of the clamp transducer connected to input In1 The following values can be selected 1A 5A 10A 30A 40A 100A 200A 300A 400A 1000A 2000A 3000A Lim This key allows selecting the ...

Page 81: ...sitive result the maximum value of current is lower than the set limit threshold further to the indication of the date time in which the maximum value was detected LEAK 15 10 18 04 M A X 1 2 m A 1 m A 1 5 1 0 2 1 6 0 4 3 5 P M OK 1A 30mA FS Lim 6 The message NO OK appears in case of negative result the maximum value of current is higher than the set limit threshold further to the indication of the...

Page 82: ...nstant Fig 35 Measurement of environmental parameters through external probes 1 Press the MENU key move the cursor to AUX in the main menu by means of the arrow keys and confirm with ENTER Subsequently the instrument shows a screen similar to the one on the side AUX 15 10 18 04 0 00 Lux Lx2k Colour 3000K MODE Type Temp 2 Use the arrow keys to select the parameter to be modified and keys to change ...

Page 83: ...eal time as shown in the screen on the side AUX 15 10 18 04 1380 Lux Lx2k Colour 3000K MODE Type Temp 5 Press the SAVE key to store the test result in the instrument s memory see 7 1 or the ESC MENU key to exit the screen without saving and go back to the main menu ...

Page 84: ...h optional accessory IMP57 L L Measurement of Phase to Phase line impedance The test can be performed also with high resolution 0 1m with optional accessory IMP57 CAUTION The measurement of line impedance or fault loop impedance involves the circulation of a maximum current according to the technical specifications of the instrument see 10 1 This could cause the tripping of possible magnetothermal...

Page 85: ...this case the instrument will measure the zeroed impedance upstream of the initial point of the mains being tested taking it as a starting reference 3 Select the CAL mode by means of the arrow keys and perform the calibration of the test cables or of the cable with mains plug by using the ZEROLOOP accessory before performing the test see 6 7 2 4 Connect the instrument to the initial point of the m...

Page 86: ... disconnect the measuring leads of the instrument from the system being tested In case of positive result maximum percentage value of calculated voltage drop according to 12 11 set limit value the OK outcome and the screen to the side are displayed by the instrument The screen contains the value of the Z2 end of line impedance together with the Z1 Offset value V 15 10 18 04 V ZL L 0 4 1 57 FREQ 50...

Page 87: ...ied V 15 10 18 04 V ZL N FREQ 50 00 Hz VL PE 100V VL N 100V Voltage 100V L N 16A 4 0 12 MODE Inom Lim Z 3 If the instrument detects an L L voltage higher than the maximum limit 460V it does not carry out the test and displays a screen like the one to the side Check the connection of measuring cables V 15 10 18 04 V ZL N FREQ 50 00 Hz VL PE 242V VL L 460V Voltage 460V L L 16A 4 0 12 MODE Inom Lim Z...

Page 88: ...blocks the execution of the tests V 15 10 18 04 V ZL N FREQ 50 00Hz VL PE 0V VL N 0V Missing L L N 16A 4 0 12 MODE Inom Lim Z 7 If the instrument detects the absence of the signal to terminal B4 neutral conductor it provides the warning screen shown to the side and blocks the execution of the tests V 15 10 18 04 V ZL N FREQ 50 00Hz VL PE 232V VL N 115V Missing N L N 16A 4 0 12 MODE Inom Lim Z 8 If...

Page 89: ...s that the phase and PE leads are inverted it does not carry out the test and a screen similar to the one reported to the side is displayed Check the connection of measuring cables V 15 10 18 04 V ZL N FREQ 50 00Hz VL PE 232V VL N 1V Exchange L PE L N 16A 4 0 12 MODE Inom Lim Z 11 If the instrument detects a VL PE VL N or VN PE 5V during the test leads calibration it does not carry out the test an...

Page 90: ...arameters measured by the instrument Following options are available Par mains parameters Voltage Current active reactive apparent Power Power factor Cos ArmV Voltage harmonics up to the 25th THDV ArmI Current harmonics up to the 25th THDI FS This key allows selecting the full scale FS of the clamp transducers which can be used with the instrument Following values are available 1A 5A 10A 30A 40A 1...

Page 91: ... one on the side in which the considered amplitude of harmonics is always indicated in a percentage value with respect to the fundamental The histogram graphic of the percentage amplitudes of the fundamental and of the voltage VL N or current harmonics with a DC value up to the 25th the value of the fundamental H01 is always considered equal to 100 and is not shown further to the value of THD see ...

Page 92: ...is key allows setting the type of EVSE system among the options 1ph single phase and 3Ph three phase Imax This key allows setting the maximum rated output current of the EVSE system as defined by the reference standard among the options 13A 20A 32A and 63A Vent This key allows setting the type of environment in which the EVSE system is found among the options OFF non ventilated ON ventilated 3 Con...

Page 93: ... calibration procedure described in 6 3 2 8 Press the GO STOP key The instrument will start the measurement CAUTION The message Measuring appears on the display to indicate that measurement is in progress During this whole stage do not disconnect the test leads of the instrument from the system being tested 9 At the end of measurement the instrument shows the message OK in case of a positive resul...

Page 94: ... 18 04 2 6 L1 Insulation test 14 Press the GO STOP key The following screen appears on the display The test is carried out by the instrument only in AUTO mode in a sequence among the conductors L N L PE and N PE Please refer to 6 5 for a description of the setting of the test parameters M 15 10 18 04 RL N M Vt V RL PE M Vt V RN PE M Vt V AUTO 500V 1 00M MODE Vtest Lim 15 For three phase EVSE syste...

Page 95: ...rry on with the test on Phase L2 The following screen appears on the display M 15 10 18 04 RL1 N 999 M Vt 514 V RL1 PE 999 M Vt 511 V RL2 N M Vt V RL2 PE M Vt V RL3 N M Vt V RL3 PE M Vt V RN PE M Vt V Connect phase L2 AUTO 500V 1 00M MODE Vtest Lim 19 Connect the instrument to the adapter as shown in the diagram on the display input B4 to input N input B3 to input E and input B1 to input L2 Use th...

Page 96: ...imum threshold M 15 10 18 04 RL1 N 999 M Vt 514 V RL1 PE 999 M Vt 511 V RL2 N 250 M Vt 517 V RL2 PE 999 M Vt 514 V RL3 N M Vt V RL3 PE M Vt V RN PE M Vt V OK AUTO 500V 1 00M MODE Vtest Lim 23 Press the SAVE key to partially save the test and to carry on with the subsequent test no 26 24 The instrument displays the message FAIL in case of a negative result of at least one test value lower than the ...

Page 97: ... B Rated current OK ON or OFF VL1N 10V 10V VL1 PE 10V 10V VN PE 10V 10V VCP peak 9V 0 6V out of range Frequency DC 0Hz 0Hz Charge current 0A 0A C C Rated current OK OFF VL1N Vnom 10 out of range VL1 PE Vnom 10 VN PE 25V 25V VCP peak 6V 0 53V out of range Frequency 1kHz 0 5 out of range Charge current Selected current D D Rated current OK ON VL1N Vnom 10 out of range VL1 PE Vnom 10 VN PE 25V 25V VC...

Page 98: ...e position STATUS STS 15 10 18 04 L1 N V CP V L1 PE V F Hz N PE V I A A STATUS 28 Press the GO STOP key The result of measurements is shown in the screen on the side The instrument displays the message OK in case of a positive result of the tests see Table 3 STS 15 10 18 04 L1 N 0 V CP 12 0 V L1 PE 0 V F 0 Hz N PE 0 V I 0 0 A OK A STATUS 29 Press the SAVE key to partially save the test and to carr...

Page 99: ...s indicated in the screen on the side Use the keys to select the option OK in case of a positive result and press the GO STOP key to carry on with the test see no 34 or select the option NO OK and press the GO STOP key to end the sequence of tests NOTE some EVSE stations may not be provided with the mechanical blocking system In this case select the option OK to carry on with the tests STS 15 10 1...

Page 100: ...N PE V I A B STATUS 36 Press the GO STOP key The result of measurements is shown in the screen on the side The instrument displays the message OK in case of a positive result of the tests see Table 3 STS 15 10 18 04 L1 N 0 V CP 9 1 V L1 PE 3 V F 0 Hz N PE 3 V I 0 0 A OK B STATUS 37 Press the SAVE key to partially save the test and to carry on with the subsequent test no 40 to check status C non ve...

Page 101: ...s of the adapter and set the following positions PP State 13A 20A 32A or 63A CP State C Fault OK STS 1 5 10 18 04 3 6 Checking status C 41 Press the GO STOP key The following screen appears on the display Notice the presence of the status C corresponding to the position STATUS STS 15 10 18 04 L1 N V CP V L1 PE V F Hz N PE V I A C STATUS 42 Press the GO STOP key The result of measurements is shown ...

Page 102: ...f an EVSE system in a non ventilated environment Vent OFF connect the instrument to the adapter as shown in the diagram on the display input B4 to input N input B3 to input E and input B1 to input L1 Use the three selectors of the adapter and set the following positions PP State 13A 20A 32A or 63A CP State D Fault OK NOTE the EVSE station should have the possibility to manually or automatically ac...

Page 103: ... of at least one test see Table 3 STS 15 10 18 04 L 1 N 2 3 0 V C P 3 0 V L 1 P E 1 9 1 V F 1 0 0 0 H z N P E 0 V I 1 3 0 A FAIL D STATUS 51 Press the SAVE key to partially save the test and to end the sequence of tests The instrument shows the message contained in the following screen for a few seconds Repeat the sequence again if necessary STS 15 10 18 04 Sequence completed D STATUS 52 Connect t...

Page 104: ...8 04 L1 N 0 V CP 11 V L1 PE 0 V F 0 Hz N PE 0 V I 0 0 A OK FAULT PE STATUS 55 Press the SAVE key to partially save the test and to carry on with the subsequent test for the simulation of a fault on E no 58 56 The instrument displays the message FAIL in case of a negative result of at least one test see Table 3 STS 15 10 18 04 L1 N 0 V CP 11 V L1 PE 0 V F 0 Hz N PE 0 V I 0 0 A FAIL FAULT PE STATUS ...

Page 105: ... of the status FAULT E corresponding to the position STATUS STS 15 10 18 04 L1 N V CP V L1 PE V F Hz N PE V I A FAULT E STATUS 60 Press the GO STOP key The result of measurements is shown in the screen on the side The instrument displays the message OK in case of a positive result of the tests see Table 3 List of considered situations when checking statuses STS 15 10 18 04 L1 N 0 V CP 11 V L1 PE 0...

Page 106: ...7 9 for a description of the setting of the test parameters as regards the RCD s tripping current of the EVSE system and to 6 7 2 for a preliminary calibration of the test leads Notice the presence of the correct voltage values between L PE and L N as shown in the screen on the side LOOP 15 10 18 04 T T R A U t V FREQ 50 00Hz VL PE 232V VL N 231V Ra 3 wire 30mA FUNC MODE I n 66 Press the GO STOP k...

Page 107: ... wire Ra NoTrip mode with fixed RCD protection Please refer to 6 7 7 for a description of the setting of the test parameters as regards the RCD s tripping current of the EVSE system and to 6 7 2 for a preliminary calibration of the test leads Notice the presence of the correct voltage values between L PE and L N as shown in the screen on the side LOOP 15 10 18 04 T N I s c A Z L N Ω I f c A Z L P ...

Page 108: ...I n Test 5 Test of RCD Type A of the EVSE system 75 Connect the instrument to the adapter as shown in the diagram on the display input B4 to input N input B3 to input E and input B1 to input L1 Use the three selectors of the adapter and set the following positions PP State 13A 20A 32A or 63A CP State C Fault OK RCD 15 10 18 04 5 6 A Type RCD Ramp test 76 This test is carried out by the instrument ...

Page 109: ...h the subsequent test no 82 79 Activate the EVSE system again in the following way Move selector CP State A Move selector CP State C If the RCD trips reset it RCD 15 10 18 04 RCD tripping Ok To restore the EVSE system turn CP to A and go back to the current position If the external RCD trips reset it 80 At the end of the test if the tripping current is not within the values indicated in 10 1 the i...

Page 110: ...m A T m s U t V FREQ 50 00Hz VL PE 231V VL N 234V 6mA No Ut MODE I n Type Ut 84 Press the GO STOP key The instrument will start measuring and the display will show the message Measuring During this whole stage do not disconnect the test leads of the instrument from the system being tested The following screen appears on the display When the RCD trips and breaks the circuit in case the tripping tim...

Page 111: ...the test and to end the sequence of tests In case of a positive result the instrument shows the message contained in the following screen for a few seconds 87 Repeat the sequence again if necessary RCD 15 10 18 04 S E Q U E N C E C O M P L E T E D A L L O K ...

Page 112: ...mment associated with the measure in which a text of max 30 digits can be entered SAVE 15 10 18 04 M e a s u r e 0 0 3 I n s t a l l a t i o n 0 0 1 S t r i n g M o d u l e C o m m e n t m a x 3 0 d i g i t s 2 Use the arrow keys or to select the marker and the arrow keys to change the label of the associated numeric value e g Area among those available or customizable by the user max 20 names 3 S...

Page 113: ... measure Press the ESC MENU key to go back to the previous screen 4 Use the arrow keys or to select option Pag and proceed to the next screen 5 Select the option DEL to delete the whole content of the instrument s memory All option or the last saved data Last option The following screen appears on the display MEM 15 02 18 04 N D a t e T y p e 0 0 1 1 4 0 1 2 1 R P E 0 0 2 1 5 0 1 2 1 M 0 0 3 1 5 0...

Page 114: ...ort must not be engaged by other devices or applications e g a mouse a modem etc Close any applications running using the Microsoft Windows Task Manager function if necessary The optical port emits invisible LED radiations Do not directly observe with optical instruments Class 1M LED apparatus according to standard IEC EN 60825 1 To transfer data to the PC follow this procedure 1 Switch on the ins...

Page 115: ...ation Before carrying out this operation make sure you have disconnected all cables from the input terminals 1 Switch off the instrument by pressing the ON OFF key 2 Remove the cables from the inputs 3 Loosen the battery compartment cover fastening screw and remove the cover 4 Remove all the batteries from the battery compartment and replace them with new batteries of the right type only 10 3 maki...

Page 116: ... 99 9 0 1 100 199 1 5 0 rdg 2dgt 250 0 01 9 99 0 01 2 0 rdg 2dgt 10 0 199 9 0 1 200 249 1 250 499 5 0 rdg 2dgt 500 0 01 9 99 0 01 2 0 rdg 2dgt 10 0 199 9 0 1 200 499 1 500 999 5 0 rdg 2dgt 1000 0 01 9 99 0 01 2 0 rdg 2dgt 10 0 199 9 0 1 200 1999 1 Open circuit voltage rated test voltage 0 10 Rated measuring current 1mA with 1k x Vnom 50V 100V 250V 1000V 2 2mA with 230k 500V Short circuit current 6...

Page 117: ...10 B 999 999 999 999 310 30mA AC 999 999 999 999 50 150 310 A 999 999 999 999 50 150 310 B 999 999 999 999 310 100mA AC 999 999 999 999 50 150 310 A 999 999 999 999 50 150 310 B 999 999 999 999 310 300mA AC 999 999 999 999 50 150 310 A 999 999 999 999 50 150 310 B 999 999 999 999 310 500mA 650mA AC 999 999 999 999 50 150 310 A 999 999 999 999 310 B 1000mA AC 999 999 999 A 999 999 999 B Table with ...

Page 118: ...e in systems withou Neutral 2 wire 6mA and 10mA RCD Range Resolution Accuracy 0 05 9 99 0 01 5 rdg 30dgt 10 0 99 9 0 1 100 1999 1 Contact voltage measured during RCD and Ra test Range V Resolution V Accuracy 0 Ut LIM 0 1 0 5 0 rdg 3V Phase rotation with 1 test lead Voltage range P N P PE V Frequency range 100 265 50Hz 60Hz 5 Measurement is only carried out by direct contact with metal live parts n...

Page 119: ...urrent with transducer clamp In1 input STD clamp FS clamp Output ratio Measurement range Resolution 1A 1V AC 0 1mA 999 9mA AC 0 1mA AC 5A 1V AC 0 001A 4 999A AC 0 001A AC 10A 1V AC DC 0 001A 9 999A AC DC 0 001A AC DC 30A 3V AC 0 01A 29 99A AC 0 01A AC 40A 400mV AC DC 0 01A 39 99A AC DC 0 01A AC DC 100A 1V AC DC 0 01A 99 99A AC DC 0 01A AC DC 200A 1V AC 0 01A 199 99A AC 0 01A AC 300A 3V AC 0 01A 29...

Page 120: ... factor 3 DC AC TRMS current with transducer clamp In1 input STD clamp FS clamp Output ratio Measurement range Resolution 1A 1V AC 0 1mA 999 9mA AC 0 1mA AC 5A 1V AC 0 001A 4 999A AC 0 001A AC 10A 1V AC DC 0 001A 9 999A AC DC 0 001A AC DC 30A 3V AC 0 01A 29 99A AC 0 01A AC 40A 400mV AC DC 0 01A 39 99A AC DC 0 01A AC DC 100A 1V AC DC 0 01A 99 99A AC DC 0 01A AC DC 200A 1V AC 0 01A 199 99A AC 0 01A ...

Page 121: ...0 70c 1 00 0 70i 0 01 2 0 rdg 3dgt Voltage harmonics 230V single phase systems 1Ph f 50 60Hz Range Resolution Order Accuracy 0 1 100 0 0 1 00 02 25 5 0 rdg 5dgt Fundamental frequency 50 60Hz 5 Harmonics are zeroed in the followed conditions DC if the DC value 0 5 fundamental value or if the DC value 1 0V 1 harmonic if the value of 1 harmonic 15V not displayed 2nd 25th harmonics if harmonic value 0...

Page 122: ...ction IP40 Power supply Battery type 6x1 5V alkaline batteries type AA IEC LR06 MN1500 or 6 x1 2V rechargeable NiMH type AA Low battery indication low battery symbol on the display Battery life 500 tests for each function Auto Power OFF after 10 minutes idling if activated Miscellaneous Display COG Black white graphic LCD 320x240pxl Memory 999 locations 3 mark levels PC connection optical USB port...

Page 123: ...sequence of improper packaging Repairs which may become necessary as a consequence of interventions performed by unauthorized personnel Modifications to the instrument performed without the manufacturer s explicit authorization Use not provided for in the instrument s specifications or in the instruction manual The content of this manual cannot be reproduced in any form without the manufacturer s ...

Page 124: ...ther to the earth installation using for example the protective conductor of the closest socket Fig 39 Examples for continuity measurements on conductors Check the continuity among Earth poles of all the plug sockets and earth collector or node Earth terminals of class I appliances boilers etc and earth collector or node Main external masses water tubes gas pipes etc and earth collector or node Ad...

Page 125: ...sidered as part of the earthing PEN During this measurement all active conductors may be connected to each other Should the measurement s result be outside the limits prescribed by the standards the test must be repeated separately for each single conductor The active conductors The guidelines recommend also checking the insulation between active conductors when possible If the system includes ele...

Page 126: ...red after 1 minute and after 10 minutes The test voltage is maintained throughout the whole duration of the test and at the end the instrument provides the value of ratio min 1 min 10 re Ins re Ins PI Some reference values PI Value Insulation condition from 1 0 to 1 25 Not acceptable from 1 4 to 1 6 Good 1 6 Excellent 12 2 2 Dielectric Absorption Ratio DAR Parameter DAR consists in the ratio betwe...

Page 127: ...an that of the insulation transformer protective separation to earth insulation no lower than that of the insulation transformer Purpose of the test The test to be performed if protection is obtained through separation must check that the insulation resistance measured as described below according to the type of separation complies with the limits reported in the table relating to insulation measu...

Page 128: ...rated circuit and the other to one of the conductors of a non separated circuit TEST BETWEEN ACTIVE PARTS AND EARTH Connect an instrument probe to one of the two conductors of the separated circuit and the other to the equalizing potential node This test must be performed for SELV circuits or circuits with electrical separation only Equalizing potential node Fig 40 Separation measurements between ...

Page 129: ...ever this test only detects 24 of the defective differential switches Parts of the system to be checked All differential switches must be tested upon installation In low voltage systems it is advisable to perform this test fundamental in order to guarantee a correct safety level In medical rooms this test must be performed periodically on all differential switches as prescribed by the guidelines A...

Page 130: ...CAPACITY OF PROTECTION DEVICES Purpose of the test Checking that the breaking capacity of the protection device is higher than the maximum fault current possible in the system Parts of the system to be checked The test must be performed at the point in which the maximum short circuit current is possible normally immediately downstream of the protection device to be checked The test must be perform...

Page 131: ...is satisfied by the following relationshisp Zs Ia Uo where Zs Fault Loop P PE impedance which includes the phase winding of the transformer the line conductor up to the fault point and the protective conductor from the fault point to the star center of the transformer Ia Tripping current of the protection device within the time specified in Table 7 Uo nominal AC voltage referred to ground CAUTION ...

Page 132: ... B Ia 5 10In curve C Ia 10 20In curves D K Fig 41 Example of curves relative to magnetothermal MCB protection The instrument allows the selection of the following parameters MCB curve B 3A 6A 10A 13A 15A 16A 20A 25A 32A 40A 45A 50A 63A 80A 100A 125A 160A 200A MCB curve C 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16A 20A 25A 32A 40A 50A 63A 80A 100A 125A 160A 200A MCB curve D K 0 5A 1A 1 6A 2A 3A 4A 6A ...

Page 133: ... of the system the following relationships are satisfied ZL PE ZLIM 1 ZL N ZLIM 2 where ZL PE Impedance measured between phase and PE ZL N Impedance measured between phase and neutral ZLIM Maximum limit impedance depending on type MCB or Fuse and tripping time of the selected protection values depending on countries The following selections are available on the instrument MCB curve B 3A 6A 10A 13A...

Page 134: ...IdN in Ampere 50 safety limit voltage reduced down to 25V in special environments If the system protection is obtained through a differential switch the measurement must be performed upstream of this switch or downstream of it by short circuiting the switch in order to prevent it from tripping These methods although not currently provided for by guidelines provide values that have been proven indi...

Page 135: ...h the impedance of a line conductor It is however necessary to take precautions to avoid the risk of harmful physiological effects on people in contact with conductive parts simultaneously accessible in case of a double earth fault Purpose of the test Verifying that the impedance of the ground probe which the masses are connected to satisfies the following relationship L d E U I Z where ZE L PE im...

Page 136: ...ed time according to the following expressions a Min L L SC I I 2 _ Three phase system Loop L L impedance a Min N L SC I I _ Single phase system Loop L N impedance a Min PE L SC I I _ Single phase system Loop L PE impedance where Isc L L_Min2F Prospective short circuit current minimum double phase L L Isc L N_Min Prospective short circuit current minimum L N Isc L PE_Min Prospective short circuit ...

Page 137: ...on type curve Rated current of the protection device Time of fault extinction by the protection The instrument allows the selection of the following parameters MCB curve B 3A 6A 10A 13A 15A 16A 20A 25A 32A 40A 45A 50A 63A 80A 100A 125A 160A 200A MCB curve C 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16A 20A 25A 32A 40A 50A 63A 80A 100A 125A 160A 200A MCB curve D K 0 5A 1A 1 6A 2A 3A 4A 6A 10A 13A 15A 16...

Page 138: ...o be checked The test includes two sequential impedance measurements in the initial point of mains power line typically downstream of a protection device and in the final point of the same line Allowable values The instrument compares the calculated value of V maximum voltage drop to the set limit value according to applicable guidelines according to the following relationship 100 INOM 1 2 NOM MAX...

Page 139: ... the index of the sigma is from 1 to the infinite What happens in reality is that a signal does not have an unlimited number of harmonics a number always exists after which the harmonics value is negligible The EN 50160 standard recommends to stop the index in the expression 1 in correspondence of the 40 th harmonic A fundamental element to detect the presence of harmonics is THD defined as 1 40 2...

Page 140: ...r 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 an headache for electric systems designers Until some ten years ago in a 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...

Page 141: ...nue 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 Phase harmonic currents are reflected on the primary circuit and continue back to the power source This can cause distortion of th...

Page 142: ...instrument measures the values of RMS Voltage and RMS Current and calculates the average Power values for each period The formulas for power calculation are N i i i i v N P 1 1 N i i N i i i N v N S 1 2 1 2 1 1 2 2 P S Q S P Pf where N number of samples in the period ...

Page 143: ......

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