Specification - Megger TDR1000 Manuel Utilisateur

Specificaton
Except where otherwise stated, this specification applies at an ambient temperature of 20°C.
General Ranges: 10m, 30m, 100m, 300m, 1000m, 3000m (30ft, 90ft, 300ft, 900ft, 3000ft, 9000ft)
Accuracy: ±1% of range ± pixel at 0.67 VF
[Note- The measurement accuracy is for the indicated cursor position only and is conditional on the velocity factor being correct.]
Resolution: 1% of range.
Input Protection: The inputs will withstand 150 V d.c. or 150 V a.c. up to 500 Hz.
Output pulse: 5 volts peak to peak into open circuit. Pulse widths determined by range and cable impedance:
25Ω
10m 7 - 40ns*
30m 30 - 50ns*
100m 100ns
300m 300ns
1000m 1000ns
3000m 3000ns
50Ω 75Ω
7ns 7ns
20ns 20ns
60ns 100ns
130ns 170ns
520ns 680ns
2020ns 2340ns
100Ω
7ns
30ns
100ns
300ns
1000ns
3000ns *Varied by the gain setting
15