Fluke Fluke 4325162 Benutzerhandbuch
Produktcode
4325162
Earth/Ground Tester
Specifications
43
Interference Frequency (F
ST
) Measurement
Measuring method:
Measurement of oscillation period of the interference voltage
Measuring
Range
Display Range
Resolution
Range
Accuracy
16.0 … 400 Hz
16.0…299.9…999 Hz 0.1 … 1 Hz
1 V … 50 V
±(1% rdg +2 digit)
Earthing Resistance (R
E
)
Measuring method:
Current and voltage measurement with probe as
IEC61557-5
IEC61557-5
Open circuit voltage:
20 / 48 V, ac
Short circuit current:
250 mA ac
Measuring frequency:
94, 105, 111, 128 Hz selected manually or automatic. (AFC)
55 Hz in function R*
55 Hz in function R*
Noise rejection:
>120 dB ( 16 2/3, 50, 60, 400 Hz )
Maximum overload:
U
rms
= 250 V
Table 9. Operational Error Calculation
Intrinsic Error or
Influence Quantity
Reference Conditions
or Specified Operating
Range
Designation
Code
Requirements or Test in
Accordance with the
Relevant Parts of IEC 1557
Type
of Test
Intrinsic error
Reference conditions
A
Part 5, 6.1
R
Position Reference
position
±
90°
E1
Part 1, 4.2
R
Supply voltage
At the limits stated by
the manufacturer
the manufacturer
E2
Part 1, 4.2, 4.3
R
Temperature
0 °C and 35 °C
E3
Part 1, 4.2
T
Series interference
voltage
voltage
E4
Part 5, 4.2, 4.3
T
Resistance of the
probes and auxiliary
earth electrodes
probes and auxiliary
earth electrodes
0 to 100 x R
A
but
≤
50 k
Ω
E5
Part 5, 4.3
T
System frequency
99 % to 101 % of the
nominal frequency
nominal frequency
E7
Part 5, 4.3
T
System voltage
85 % to 110 % of the
nominal voltage
nominal voltage
E8
Part 5, 4.3
T
Operating error
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
15
,
1
(
E
E
E
E
E
E
E
E
A
B
+
±
=
Part 5, 4.3
R
A
=
intrinsic error
En
=
variations
R
=
routine test
T
=
type test
[ ]
100%
x
value
fiducial
B
%
B
±
=