Uniks NOVA Safety guide

Manual for installation tester NOVA and
NOVA PRO

NOVA and NOVA PRO
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NOVA and NOVA PRO
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Sommario
1. Preface............................................................................................................................................................................... 4
2. Safety and operational considerations............................................................................................................................... 5
2.1. Warnings and notes .......................................................................................................................................................... 5
2.2. Batteries............................................................................................................................................................................ 7
2.3. Charging ............................................................................................................................................................................ 7
2.4. Precautions on charging of new battery cells or cells unused for a longer period ........................................................... 7
2.5. Standards applied ............................................................................................................................................................. 8
3. Instrument description....................................................................................................................................................... 9
3.1. Front panel........................................................................................................................................................................ 9
3.2. Connector panel.............................................................................................................................................................. 10
3.3. Back panel....................................................................................................................................................................... 10
3.4. Bottom view –Information label .................................................................................................................................... 12
3.5. Carrying the instrument.................................................................................................................................................. 12
4. Instrument operation....................................................................................................................................................... 13
4.1. Meaning of symbols and messages on the Instrument display ...................................................................................... 13
4.2. The online voltage and output terminal monitor ........................................................................................................... 14
4.3. Message field –battery status........................................................................................................................................ 14
4.4. Status field –measurement warnings/results symbols .................................................................................................. 15
4.5. Sound warnings............................................................................................................................................................... 15
4.6. Performing measurement............................................................................................................................................... 16
4.6.1. Measurement function/sub-function.................................................................................................................. 16
4.6.2. Selecting measurement function/ sub-function................................................................................................. 16
4.6.3. Performing tests ................................................................................................................................................... 16
4.6.4. Setup menu............................................................................................................................................................ 16
4.7. Help screen ..................................................................................................................................................................... 17
5. Measurements................................................................................................................................................................. 18
5.1. MInsulation resistance ............................................................................................................................................... 18
5.2. Continuity........................................................................................................................................................................ 19
5.2.1. R low test............................................................................................................................................................... 19
5.2.2. Continuity test....................................................................................................................................................... 22
5.3. Testing RCDs.................................................................................................................................................................... 23
5.3.1. Limit contact voltage ............................................................................................................................................ 24
5.3.2. Nominal differential trip-out current.................................................................................................................. 24
5.3.3. Multiplier of nominal residual current................................................................................................................ 24
5.3.4. RCD type and test current starting polarity........................................................................................................ 24
5.3.5. Testing selective (time-delayed) RCDs ............................................................................................................... 24
5.3.6. Contact voltage...................................................................................................................................................... 25
5.3.7. Trip-out time......................................................................................................................................................... 27

NOVA and NOVA PRO
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5.3.8. Trip-out current.................................................................................................................................................... 28
5.3.9. Autotest ................................................................................................................................................................. 30
5.4. Z LOOP Fault loop impedance and prospective fault current ......................................................................................... 35
5.4.1. Fault loop impedance ........................................................................................................................................... 35
5.4.2. The fault loop impedance test RCD (for RCD protected circuits)...................................................................... 37
5.5. Z LINE Line impedance and prospective short-circuit current ........................................................................................ 39
5.5.1 V% Voltage drop test........................................................................................................................................ 41
5.6 Phase sequence testing................................................................................................................................................... 44
5.7 Voltage and frequency .................................................................................................................................................... 45
5.8 Re Earth Resistance (Only NOVA PRO)............................................................................................................................ 47
5.8.1. Earth Resistance (Re) - 3-wire, 4wire ................................................................................................................. 47
5.8.2. Specific earth resistance (Ro only NOVA PRO).................................................................................................. 49
6Maintenance.................................................................................................................................................................... 51
6.1. Replacing fuses................................................................................................................................................................ 51
6.2. Cleaning........................................................................................................................................................................... 51
6.3. Periodic calibration ......................................................................................................................................................... 51
6.4. Service............................................................................................................................................................................. 51
7Technical specifications.................................................................................................................................................... 53
7.1 Insulation resistance ....................................................................................................................................................... 53
7.2 Continuity resistance ...................................................................................................................................................... 53
7.3 RCD testing...................................................................................................................................................................... 54
7.4 Fault loop impedance and prospective fault current...................................................................................................... 56
7.5 Line impedance and prospective short-circuit current................................................................................................... 57
7.6 Phase rotation................................................................................................................................................................. 57
7.7 Voltage and frequency .................................................................................................................................................... 57
7.8 Earth Resistance (only NOVA PRO) ................................................................................................................................. 58
7.9 General data.................................................................................................................................................................... 59
8Storing measurements ..................................................................................................................................................... 60
8.1. Overview ......................................................................................................................................................................... 60
8.2. Saving results .................................................................................................................................................................. 61
8.3. Recalling results .............................................................................................................................................................. 63
8.4. Deleting results ............................................................................................................................................................... 64
9USB communication......................................................................................................................................................... 65
9.1. MFT Records - PC software ............................................................................................................................................. 65
9.2. Downloading records to PC............................................................................................................................................. 65

NOVA and NOVA PRO
Safety and operational considerations
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ff
1. Preface
Congratulations on the purchase of the NOVA or NOVA PRO instrument from UNIKS Srl ! The design of the
instrument is based on the experience of UNIKS, acquired
through many years of management of equipment for safety tests in civil and industrial electrical systems.
The NOVA series allows you to perform the following measurements and tests:
Continuity test with 200mA or continuously with 7mA
Insulation resistance test up to 1000V
RCD type A,AC,F,B,B+ and EV test with 6mA DC
High current Line/Loop impedance measurement
Measurement of global ground resistance Ra in differential-protected TT systems.
Voltage and frequency,
Cyclic sense of phases,
Ground resistance with the Voltamperometric method (Only NOVA PRO)
Soil resistivity (Only Nova PRO)
Large color TFT display with backlight provides easy-to-read results, directions,
measurement parameters and error messages.
The Nova series allows you to save all the measurements in the internal memory and through THE USB port will
allow you to create REPORTS of the measurements in Excel form then customizable by the user.
NOVA Tool:
Standard accessories:
3 pcs. PVC test cables (1 m)
1 pcs. Schuko-plug cable,
3 pcs. Tips
3 pcs. crocodile clip
1 pcs instruction manual IT
1 rigid carrying bag with shoulder strap
1 Software including USB and SW cable for Excel-based PC reporting
Optional Accessories:
1 SET battery charger consisting of batteries ( 6 x 1.2V without Ni-MHbrand), charging circuit, plug-in power
supply............ Code. N1180
1 remote TIP with TEST button............. code N1400
1 EV CHECK Accessory for the test of electric charging stations....... Code EV CHECK
NOVA PRO tool
Standard accessories:
3 pcs. PVC test cables (1 m)
1 pcs. Schuko-plug test cable,
3 pcs. test probes
3 pcs. crocodile clip
1 pcs instruction manual EN
1 carrying bag with shoulder strap
1 SET battery charger consisting of batteries ( 6 x 1.2V without Ni-Mh), charging circuit, plug-in power supply
1 Software including USB and SW cable for Excel-based PC reporting
Optional Accessories:
1 Set of ground kit consisting of 4 cables and 4 pegs...... Code N2030
1 REMOTE TIP code.... N1400
1 EV CHECK Accessory for the test of electric charging stations. Code EV CHECK