Care And Maintenance; Specification - Megger Tdr2000/2 Benutzerhandbuch

CARE AND MAINTENANCE

Other than replacing the batteries, the instrument has no user
serviceable parts. In the event of failure the instrument should be
returned to your supplier or an approved Megger repair agent.
Cleaning the instrument should only be done by wiping with a clean
cloth dampened with soapy water or Isopropyl Alcohol (IPA).

SPECIFICATION

Except where otherwise stated, this specification applies at an ambient
temperature of 20°C.
General
Ranges:
Resolution:
Measurement Accuracy:
[Note – The measurement accuracy is for the indicated cursor position
only and is conditional on the velocity factor being correct]
Input Impedance:
Input Protection:
Output Pulse Amplitude:
Pulse width user selectable:
50 m range: 7 ns
100 m range: 7 ns
200 m ranges: 7 ns
400 m range: 40 ns
1 km range: 80 ns
2 km range: 160 ns
4 km range: 240 ns
8 km range: 500 ns
16 km range: 1 µs
50 m, 100 m, 200 m, 400 m, 1 km, 2 km,
4km, 8 km, 16 km, (150 ft, 300 ft, 600 ft,
1200 ft, 3000 ft, 6000 ft, 12000 ft, 24000 ft,
48000 ft)
0.1 m (4 inches) up to 200 m/600 ft
0.2 m up to 400 m/1200 ft
0.1% of range above 400 m/1200 ft
0.1% of Range
120 Ω
300 V CATIII working. (415 V phase to
Phase)
Nominal 3 V, 5 V and 14 Vpk to pk
into an open circuit
20 ns 40 ns 60 ns
40 ns 60 ns 80 ns
40 ns 80 ns 140 ns
80 ns 160 ns 200 ns
160 ns 260 ns 500 ns
260 ns 500 ns 1 µs
500 ns 1 µs 2 µs
1 µs 2 µs 4 µs
2 µs 4 µs 8 µs
80 ns
100 ns
200 ns
400 ns
1 s
2 µs
4 µs
8 µs
16 s
15