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JUPITER

IT - 21

Fig. 24: Use of the instrument for measuring Loop L-PE impedance with leads

Fig. 25: Use of the instrument for measuring Loop L-N impedance with cable provided with

Schuko plug

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Содержание JUPITER

Страница 1: ... Copyright HT ITALIA 2017 Version EN 1 00 03 10 2017 ENGLISH User manual ...

Страница 2: ......

Страница 3: ...ge in Loop Ra measurement 10 4 2 12 Setting full scale of flexible clamp 10 5 OPERATING INSTRUCTIONS 11 5 1 DC voltage measurement 11 5 2 AC AC DC voltage measurement 12 5 3 AC DC AC DC voltage with low impedance LoZ 13 5 4 Resistance measurement and continuity test 14 5 5 Phase sequence and phase concordance with 1 terminal 15 5 6 Overall earth resistance without RCD tripping 17 5 7 Measurement o...

Страница 4: ... could damage the instrument or its components High voltage danger electrical shock hazard Double insulated meter AC voltage or current DC voltage or current Connection to earth 1 1 PRELIMINARY INSTRUCTIONS This instrument has been designed for use in environments of pollution degree 2 It can be used for VOLTAGE and CURRENT measurements on installations with CAT IV 600V CAT III 690V to earth and b...

Страница 5: ...LTAGE CATEGORY Standard IEC EN61010 1 Safety requirements for electrical equipment for measurement control and laboratory use Part 1 General requirements defines what measurement category commonly called overvoltage category is 6 7 4 Measured circuits reads Circuits are divided into the following measurement categories Measurement category IV is for measurements performed at the source of the low ...

Страница 6: ...l frequency 50 or 60 Hz TRMS True Root Mean Square VALUE meters instruments measuring the TRMS value of the quantity being tested With a perfectly sinusoidal wave the two families of instruments provide identical results With distorted waves instead the readings shall differ Average value meters provide the RMS value of the sole fundamental wave TRSM meters instead provide the RMS value of the who...

Страница 7: ...he forwarding agent We also recommend checking that the packaging contains all components indicated in 6 3 1 In case of discrepancy please contact the Dealer In case the instrument should be returned please follow the instructions given in 7 3 2 INSTRUMENT POWER SUPPLY The instrument is supplied with 4x1 5V alkaline batteries type AAA IEC LR03 included in the package When batteries are flat the sy...

Страница 8: ...Input terminal COM 10 Input terminal V L Fig 1 Description of the instrument 4 1 1 Instrument s initial screen 1 Turn the rotary switch to any position to switch on the instrument The following initial screen is shown on the display for a few seconds to identify the internal Firmware version Fig 2 Instrument s initial screen 2 Turn the rotary switch to OFF to switch off the instrument ...

Страница 9: ...9Hz and the percentage value of parameter THD see 9 4 as shown in Fig 3 Use keys and to increase decrease the order of the harmonic Fig 3 Display of amplitude of harmonic analysis Long pressing of the key at least 2s in order to activate the H2O Higher Harmonic Ordering ordering function of the amplitude of harmonics In these conditions function HOLD is automatically activated symbol is shown on t...

Страница 10: ...ss and hold key MODE MXMNPK 2s or use the selector to exit the function 4 2 4 Keys and A simple pressing of keys and allows for the following operations Setting of the full scale value of flexible clamp transducer optional accessory option in position among values 30A 300A 3000A for AC current measurement Setting of the full scale value of standard clamp transducer option in position among values ...

Страница 11: ...amp the instrument shows on the display the maximum Peak value calculated in 1ms and the maximum RMS value calculated with a time which can be selected among options 16 7ms 20ms 50ms 100ms default 150ms 175ms and 200ms 4 2 9 Disabling the Auto Power Off function In order to preserve internal batteries the instrument switches off automatically approximately 15 minutes after it was last used Press k...

Страница 12: ...y GO HOLD to confirm and go back to measuring screen 4 2 12 Setting full scale of flexible clamp The instrument can be used with flexible transducer clamp optional accessory For a correct current measurement is necessary set the voltage full scale of the used clamp consider the user manual of the transducer in order to know the correct full scale Proceed as follows 1 Switch off the instrument OFF ...

Страница 13: ...Insert the red cable into input terminal V L and the black cable into input terminal COM E N 3 Position the red lead and the black lead respectively in the spots with positive and negative potential of the circuit to be measured see Fig 8 The display shows the value of voltage 4 If the display shows the message 690V see Fig 8 the maximum measurable value has been reached 5 When symbol appears on t...

Страница 14: ... the red cable into input terminal V L and the black cable into input terminal COM E N 4 Position the red lead and the black lead respectively in the spots of the circuit to be measured see Fig 9 The display shows the value of voltage On the top of the display on the right side the value of voltage frequency is displayed Press key MODE MXMNPK to display the value of frequency with a higher resolut...

Страница 15: ...ble into input terminal COM E N 4 Position the red lead and the black lead respectively in the positions of the circuit to be tested see Fig 10 for AC voltage measurement or in the positions with a positive or negative potential of the circuit to be tested see Fig 8 for DC voltage measurement The display shows the value of voltage On the top of the display on the right side the value of voltage fr...

Страница 16: ...leads and press key to zero the resistance of the measuring cables The symbol ZERO appears on the display 4 Position the test leads in the desired spots of the circuit to be measured see Fig 11 The display shows the value of resistance 5 If the display shows the message 2000 see Fig 11 the maximum measurable value has been reached 6 Press key MODE MXMNPK to select measurement relevant to the conti...

Страница 17: ...ent for phase sequence and phase concordance test 1 Select position Message PH 1 flashes on the display 2 Insert the red lead into input terminal V L 3 Position the red lead onto phase L1 of the three phase system to be tested see Fig 12 The following messages may appear on the display see Fig 13 to identify the presence of a voltage signal with frequency out of range 42 5Hz 69Hz In these conditio...

Страница 18: ...takes more than 10s the instrument shows message t out on the display see Fig 15 left side In conditions of correct voltage and frequency the instrument shows message HOLD symbols and PH2 and the buzzer sounds continuously waiting for a stable voltage value on phase L2 to be detected see Fig 15 right side 7 Upon detection of a stable voltage value on phase L2 the instrument automatically shows mes...

Страница 19: ...ding the limits given in this manual Exceeding voltage limits could result in electrical shocks to the user and damage to the instrument The measurement of overall earth resistance involves the circulation of a current of approx 15mA between phase and earth according to the technical specifications of the instrument see 7 1 This could cause the tripping of possible protections with lower tripping ...

Страница 20: ... GO HOLD to activate the test The following screens may appear on the display for a few seconds to signal anomalous conditions in which the instrument does not carry out the test Fig 19 Anomalous situations upon pressing key GO HOLD Screen 1 Fig 20 Anomalous situations upon pressing key GO HOLD Screen 2 Fig 21 Anomalous situations upon pressing key GO HOLD Screen 3 L PE Turn the Schuko plug in the...

Страница 21: ...l flashes on the display At the end of the test the following screens appear on the display Fig 22 Results of measurement of overall earth resistance 9 The screen in Fig 22 left side shows the value of overall earth resistance Press keys or to display the value of assumed short circuit current Isc see 9 3 ...

Страница 22: ...t L PE the instrument measures the fault loop impedance between phase and earth conductor Ra and calculates the assumed phase to earth short circuit current CAUTION The maximum input AC voltage is 690V to earth and between inputs Do not measure voltages exceeding the limits given in this manual Exceeding voltage limits could result in electrical shocks to the user and damage to the instrument The ...

Страница 23: ...JUPITER IT 21 Fig 24 Use of the instrument for measuring Loop L PE impedance with leads Fig 25 Use of the instrument for measuring Loop L N impedance with cable provided with Schuko plug ...

Страница 24: ...e 4 2 11 2 Set the limit value of contact voltage see 4 2 10 3 Select position Ra Loop 4 Press key MODE MXMNPK and select one of the options Ra Ln or LL 5 For Loop L PE measurements in case the cable with Shuko plug is used insert the red conductor into input terminal V L and the green conductor into input terminal COM E N and connect the instrument to the system to be tested see Fig 23 The value ...

Страница 25: ...ested see Fig 26 The value of phase to neutral voltage is shown on the display 9 For Loop L L measurements in case measuring leads are used insert the red conductor into input terminal V L and the black conductor into input terminal COM E N and connect the instrument to the system to be tested see Fig 27 The value of phase to phase voltage is shown on the display 10 Press key GO HOLD to activate t...

Страница 26: ...trument performs measurement with a leakage current equal to five times the set value of rated current the instrument performs measurement with an increasing leakage current This mode is recommended to determine the real tripping current of the RCD CAUTION The maximum input AC voltage is 690V to earth and between inputs Do not measure voltages exceeding the limits given in this manual Exceeding vo...

Страница 27: ...JUPITER IT 25 Fig 30 Use of the instrument for RCD test on single phase system with leads Fig 31 Use of the instrument for RCD test on three phase system with leads ...

Страница 28: ...of RCD among the options type AC and type A See table in to identify possible combinations 6 In case the cable with Shuko plug is used insert the red conductor into input terminal V L and the green conductor into input terminal COM E N and connect the instrument to the system to be tested see Fig 29 The presence of phase to earth voltage is shown in the bargraph 7 In case measuring leads are used ...

Страница 29: ...polarity 180 The result of partial measurement is shown on the display with indication OK or NOT OK see Fig 33 right side Symbol flashing indicates that the RCD must be reset 14 The fifth test carried out is the one with test current I n and polarity 0 The result of partial measurement is shown on the display with indication OK or NOT OK see Fig 33 middle Message 300ms indicates that the full scal...

Страница 30: ...e correct measurement result is shown on the display see Fig 36 left side with indication OK 11 The wrong measurement result tripping time 40ms is shown on the display see Fig 36 right side with indication NOT OK The buzzer gives a short continuous sound RCD tripping current Fig 37 RCD tripping current 10 The correct measurement result is shown on the display see Fig 36 left side with indication O...

Страница 31: ...essary to obtain the connection Fig 38 Use of the instrument for current measurement with clamp transducer 1 Select the position 2 Press key MODE MXMNPK to select the type of clamp transducer among the options optional flexible clamp transducer AC only or standard clamp transducer AC or DC 3 Press the keys or and on the instrument select the same range set on the clamp among the options 30A 300A 3...

Страница 32: ...current is shown in Fig 39 Fig 39 Result of AC current measurement with standard and flexible clamp 9 Press key MODE MXMNPK to display the value of frequency of AC current with a high resolution see Fig 40 Fig 40 Result of frequency measurement with standard and flexible clamp 10 The following screens may be shown on the display Fig 41 Anomalous situations on current measurement with clamp transdu...

Страница 33: ...er AC or DC 3 Press the keys or and on the instrument select the same range set on the clamp among the options 30A 300A 3000A AC current measurement with flexible clamp or 1A 10A 30A 40A 100A 200A 300A 400A 1000A 2000A 3000A for AC DC AC DC current measurement with standard clamp 4 For flexible clamps transducer set the relative voltage full scale see 4 2 12 5 Press key GO HOLD to confirm settings...

Страница 34: ... see Fig 44 left side Max RMS value calculated in 16 7ms Max RMS value calculated in 20ms Max RMS value calculated in 50ms Max RMS value calculated in 100ms Max RMS value calculated in 150ms Max RMS value calculated in 175ms Max RMS value calculated in 200ms Fig 44 Examples of display of inrush current 11 If the measured current is higher than the set FS of the clamp a message like the one in Fig ...

Страница 35: ...laced operating as follows Fig 45 Low battery indications 1 Position the rotary switch to OFF and remove the cables from the input terminals 2 Turn the fastening screw of the battery compartment cover from position to position and remove it 3 Remove the battery and insert a new battery of the same type see 7 1 1 respecting the indicated polarity 4 Restore the battery compartment cover into place a...

Страница 36: ...90V Current field 0 5A 3000A Flexible clamp F300U 1mV 1000mV STD clamp AC TRMS current Flexible clamp F3000U Autorange Range mV Resolution mV Accuracy 1 3000 1 0 5 rdg 2digits Max crest factor Frequency bandwidth 1kHz AC TRMS Current Flexible clamp FS 1V DC AC AC DC STD clamp Autorange Range mV Resolution mV Accuracy 1 1000 1 0 5 rdg 2digits Max crest factor Frequency bandwidth 1kHz INRUSH AC TRMS...

Страница 37: ...15mA 1 1999 1 0 5 0 rdg 3 L N L L Ra 100mA 0 1 199 9 0 1 0 5 0 rdg 0 3 Test on RCD instantaneous molded case type Residual current protection type RCD AC A General G L PE L N voltage 100V 690V 42 5 69Hz Tripping currents I N 30mA 100mA 300mA see Table 1 Tripping time resolution 1ms accuracy 2 0 rdg 2digits Tripping times for moulded case type RCDs n a function not available x 1 2 x 1 x 5 AUTO G G ...

Страница 38: ... Ra 15mA approx 5400 tests backlight ON Ra 100mA approx 13k tests backlight ON RCD approx 8600 tests backlight ON RCD T approx 160k tests backlight ON Auto Power Off after 15 minutes idling can be disabled Display Type of display 4 dgt LCD max 9999 dots decimal sign point backlight and bargraph indication of polarity Sampling frequency 2 times s Conversion RMS 7 2 ENVIRONMENTAL CONDITIONS FOR USE ...

Страница 39: ...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 ...

Страница 40: ...s 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 every six months on all differential switches as prescribed by standards Allowable values Two tests must be performed on each moulded case type RCD a test with a leakage current beginning in phase with the positive half wave of voltage 0 and a te...

Страница 41: ...ic RCD or rated tripping current of RCD I n expressed in A 50 Safety limit contact voltage reduced down to 25V in special environments EXAMPLE OF EARTH RESISTANCE CHECK System protected by a 30mA differential switch Measurement of overall earth resistance In order to understand if the system resistance is to be considered as compliant with the standards we need to multiply the value found by 0 03A...

Страница 42: ...s of the system to be checked The test must necessarily be performed on TN and IT systems not protected with differential devices Allowable values The purpose of this measurement is to check that the tripping current of the automatic protection device Ia satisfies one of the following relationships LPE PE L a Z U Isc I For measuring Line Loop L PE impedance LN N L a Z U Isc I For measuring Line Lo...

Страница 43: ...ps or fluctuations It can be seen from 1 that each signal consists of the summation of infinite harmonics However an order number exists beyond which the value of the harmonics may be considered as negligible Standard EN50160 suggests cutting the summation in the expression 1 at the 40th harmonic A fundamental index to detect the presence of harmonics is the THD Total Harmonic Distortion defined a...

Страница 44: ...x 5 6 3 5 2 2 7 5 9 1 5 4 1 11 3 5 15 0 5 6 24 0 5 13 3 21 0 5 17 2 19 1 5 23 1 5 25 1 5 Table 3 Limits for the harmonic voltages the supplier may introduce into the network These limits which theoretically apply only to Electric Power Suppliers anyway provide a series of reference values within which also the harmonics put into network by users should be kept ...

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