
GT-650/GT-900 User's Manual
22
Display explanation:
Figure 11: Display in protective earth bond test R
PE
(example)
1 ...... “
F:
AUT” / “
F:
MAN” menu key for selection of auto/manual start of the
measurement.
2 ...... “COMP” menu key for test lead compensation.
3 ...... “Im” menu key for test current selection (0.2 A or 5 A).
4 ...... “LIM” menu key for pass/fail limit value setting.
5 ...... Test result status ( ... result OK, X ... result not OK).
6 ...... Selected test current (0.2 A or 5 A).
7 ...... Pre-set pass/fail limit value.
8 ...... Test lead compensation symbol (C ... compensated, blank … not
compensated).
9 ...... Selected mode of start of the measurement (MAN, AUT).
MAN (manual) ... Use START key to start the measurement.
AUT (automatic) ... The test is started automatically after connecting
PROBE 1 to conductive part of tested appliance. START key is not
active in this mode.
10 .... Function selected by the rotary switch (6).
11 .... Test result and unit.
Note:
In case that protective earth bond test fails, the pass/fail limit value can be
recalculated by using the “LIM” and “CALC” menu keys and entering the
length and cross section of the mains conductor.
Pass/fail limit value calculation:
Cross section A
Cable length L
Limit value
1.5 mm
2
5 m
0.3
5 ... 12.5 m
0.4
12.5 ... 20 m
0.5
20 ... 27.5 m
0.6
27.5 ... 35 m
0.7
35 ... 42.5 m
0.8
42.5 ... 50 m
0.9
50 m
1.0
2.5 ... 50 mm
2
1 ... 50 m (res. 0.5 m)
R
LIM
=
×L/A
Содержание GT-650
Страница 1: ......
Страница 2: ...GT 650 GT 900 User s Manual 2 ...
Страница 3: ...GT 650 GT 900 User s Manual 3 GT 650 GT 900 User s Manual ...
Страница 108: ......