HT instruments FULLTEST3 - Manual (Page 81)

FULLTEST 3
EN - 80
Insulation resistance (M )
DC test voltage
(V)
Display range
(M )
Resolution
(M )
Accuracy Overvoltage
protection
100
0.00  9.99 0.01
± (3% rdg. + 3 dgt)
CAT III 300 V
10.0  20.0 0.1
20.0  99.9 0.1 ± 5% rdg.
250
0.00  9.99 0.01
± (3% rdg. + 3 dgt)
10.0  20.0 0.1
20.0  99.9 0.1
± 5% rdg.
100  250 1
500
0.00  9.99 0.01
± (3% rdg. + 3 dgt)
10.0  20.0 0.1
20.0  99.9 0.1
± 5% rdg.
100  500 1
1000
0.00  9.99 0.01
± (3% rdg. + 3 dgt)
10.0  20.0 0.1
20.0  99.9 0.1
± 5% rdg.
100  1000 1
Test voltage tolerance: (-0%  +25%) of U
N
Test current: > 1 mA (up to U N /1mA)
Short-circuit current: < 15 mA
Discharge: Internal resistance of 2 M  (after finishing the measurement)
Detection of external voltage Yes
-
U EXT lim = 10 V AC (between R ISO + and R ISO - terminals
before measurement)
-
U EXT lim = 50 V AC (between R ISO + and R ISO - terminals
during measurement)
- U EXT lim = 50 V AC approx. (between any R ISO terminal
and GND)
- U EXT lim = -10 V DC (between R ISO + and R ISO - terminals
during measurement)