HT instruments SIRIUS87 User Manual
Page 4
SIRIUS
87
EN - 2
7.
INSTRUMENT CONNECTION TO A PC .................................................................. 64
8.
MAINTENANCE ........................................................................................................ 65
8.1.
General ............................................................................................................................ 65
8.2.
Battery replacement ......................................................................................................... 65
8.3.
Cleaning ........................................................................................................................... 65
8.4.
End of life ......................................................................................................................... 65
9.
TECHNICAL SPECIFICATIONS ............................................................................... 66
9.1.
Technical features ........................................................................................................... 66
9.1.1.
Reference standards ................................................................................................................. 68
9.1.2.
General specifications ............................................................................................................... 68
9.2.
Environment ..................................................................................................................... 69
9.2.1.
Environmental working conditions ............................................................................................. 69
9.3.
Accessories ..................................................................................................................... 69
9.3.1.
Standard accessories ................................................................................................................ 69
9.3.2.
Optional accessories ................................................................................................................. 69
10.
SERVICE................................................................................................................... 70
10.1.
Warranty conditions ......................................................................................................... 70
10.2.
Service ............................................................................................................................. 70
11.
APPENDIX ................................................................................................................ 71
11.1.
LOW: Continuity measurement on protective conductors ............................................. 71
11.2.
Insulation resistance measurement ................................................................................. 72
11.3.
Check of circuit separation .............................................................................................. 75
11.4.
Working test of RCDs (RCD, RCD/DC, RCD S, RCD/DC S) .......................................... 77
11.5.
Test of RCD tripping time (RCD, RCD/DC) ..................................................................... 78
11.6.
Measurement of short circuit fault impedance (Z
PN
, Z
PP
) ................................................. 79
11.7.
Fault loop impedance measurement (phase – earth) ...................................................... 79
11.8.
Earth resistance measurement in TT systems ................................................................ 80
11.9.
Earth resistance measurement, voltamperometric method ............................................. 81
11.10.
Earth resistivity measurement ......................................................................................... 82