Megger DET2/2, Руководство пользователя

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30
Earth Resistance Ranges: 0,010
Ω
to 19,99 k
Ω
(Auto-ranging) 1 m
Ω
resolution
Accuracy (23°C ±2°C): ±0,5% of reading ±2 digits. Service error ±5% of reading ±2 digits ±10 m
Ω
(meets VDE service error over 50 m
Ω
)
Test Frequency: 105 Hz to 160 Hz reversing d.c. (50 Hz environments default to 128 Hz,
60 Hz environments default to 150 Hz). Set in steps of 0,5 Hz
Test Current: 50 mA max. (selectable high and low levels)
Max Output Voltage: < 50 V r.m.s.
Interference: Typically 40 V pk to pk (50 Hz, 60 Hz, sinusoidal nature)
Max. Current spike
(Loop) Resistance:
Range (R
E
) High current (Rp) Low current (Rc)
0,010
Ω
- 0,499
Ω
5 k
Ω
1 k
Ω
0,500
Ω
- 1,999
Ω
5 k
Ω
3 k
Ω
2,000
Ω
- 19,99
Ω
10 k
Ω
5 k
Ω
20,000
Ω
- 199,9
Ω
50 k
Ω
20 k
Ω
200, 0
Ω
- upwards 50 k
Ω
50 k
Ω
Max. Potential Spike Resistance: Range (R
E
) High current (Rp) Low current (Rp)
(Rp1) (Rp2) (Rp1) (Rp2)
0,010
Ω
- 0,499
Ω
1 k
Ω
10 k
Ω
1 k
Ω
10 k
Ω
0,500
Ω
- 1,999
Ω
1 k
Ω
20 k
Ω
1 k
Ω
10 k
Ω
2,000
Ω
- 19,99
Ω
1 k
Ω
20 k
Ω
1 k
Ω
10 k
Ω
20,000
Ω
- 199,9
Ω
200 x R
E
20 k
Ω
200 x R
E
20 k
Ω
200, 0
Ω
- upwards 50 k
Ω
total 50 k
Ω
total
Specification