Specification - Megger TDR2000 Manual De Instrucciones

Except where otherwise stated, this specification applies at an
ambient temperature of 20°C.
Ranges:
Resolution:
Measurement Accuracy: 0.1% of Range
[Note – The measurement accuracy is for the indicated cursor
position only and is conditional on the velocity factor being
correct.]
Input Protection:
Output pulse:
Pulse width user selectable:
50m range:
100m range:
200m ranges:
400m range:
1km range:
2km range:
4km range:
8km range:
16km range:
14

Specification

50m, 100m, 200m, 400m,
1km, 2km, 4km, 8km, 16km.
0.1m up to 200m
0.2m up to 400m
0.1% of range above 400m
The inputs will withstand 150Vdc or
150Vac up to 500Hz.
14 volts peak to peak into open
circuit, 7 volts peak to peak
into 120Ω
20ns, 40ns, 60ns, 80ns, 100ns
20ns, 50ns, 800ns, 100ns, 140ns
20ns, 60ns, 100ns, 140ns, 200ns
40ns, 80ns, 160ns, 200ns, 400ns
80ns, 160ns, 260ns, 500ns, 1µs
160ns, 260ns, 500ns, 1µs, 2µs
250ns, 500ns, 1µs, 2µs, 4µs
500ns, 1µs, 2µs, 4µs, 8µs
1µs, 2µs, 4µs, 8µs, 16µs
Gain: 0 to 90dB in steps of 6dB
Velocity Factor: Variable from 0.300 to 0.999 in steps
of 0.001
Repetition rate: Burst of 256 pulses every 1 or 10
seconds.
Output impedance: Balanced 120Ω
Balance Adjustment: 0Ω to 120Ω
Update Rate: Once per second.
Power Down: Automatic after 5, 10 or 15 minutes
with no key press, user selectable.
Backlight: Stays on for 1, 2 or 5 minutes when
activated, user selectable.