HT instruments FULLTEST3 - Manual (Page 23)

FULLTEST 3
EN - 22
5.3. INSULATION RESISTANCE (M )
• According to EN 60204-1, the insulation resistance between shorted active conductors of power
circuit and the earth bonding system must be checked by applying a test voltage of 500 V DC. The
limit value is
1 M .
• Ensure that all switches on the unit under test are closed in order to test all it’s components. For
purpose of the measurement, all active conductors (L1, L2, L3 and N) must be shortcircuited.
5.3.1. R ISO DISPLAY EXPLANATION
Adjustable/selectable parameters:
Utest - nominal test voltage 100, 250, 500 or 1000 V DC
MODE - operation mode MANUAL, TIMER or AUTO
LIMIT - insulation resistance limit 0.01  100.0 M
Figure 11 : Display with R ISO test result
1 ..... Selected function.
2 ..... Progress bar, it follows measurement time during the measurement (in TIMER mode only).
3 ..... Test voltage applied during the measurement.
4 ..... Measurement screen touch-screen key.
5 ..... Utest touch-screen key to select nominal test voltage (100, 250, 500 or 1000 V). Currently selected
value is displayed on the bottom of the key.
6 ..... MODE touch-screen key to select operation mode (MANUAL, TIMER or AUTO). Currently selected
mode is displayed on the bottom of the key.
7 ..... LIMIT touch-screen key to select limit insulation resistance. Currently selected value is displayed
on the bottom of the key.
8 ..... Measurement value (in green colour - result OK, in red colour - result not OK).
9 ..... Real time clock (hh.mm.ss).
10 ... Unit of the measurement result M
).
11 ... Set measurement time (in TIMER mode only).
12 ... Measurement result status (symbol
in green colour - result OK, symbol in red colour - result
not OK).