Megger Time Domain Reflectometers (TDR's)

  Specification Guide

Time Domain Reflectometers (TDR)
Model
TDR900


TDR500

CFL510F

CFL535F (CFL535P*)
Measurement Ranges
(Full scale)
6200, 8000,
9800, 12,000 ft
(1900, 2400,
3000, 3700 m)
100, 300, 1000,
3000, 10,000 ft
(30, 100, 300
1000, 3000 m)
30, 90, 300, 900,
3000, 9000 ft
(10, 30, 100, 300,
1000, 3000 m)
150, 300, 600, 1200,
24,000, 48,000 ft
(50, 100, 200, 400,
4000, 8000, 16,000 m)
Measurement Modes 1 1 1 11
Display Numeric Graphic Graphic Hi resolution/Graphic
Accuracy ±2 % ±1 % ±1 % ±0.1 %
Resolution 20 in. (50 cm) 1% of range 1% of range 0.1% of range
Gain N/A Automatic 4 steps 9 steps (0 to 90 dB)
Velocity Factor 1.0 to 99.9% 0.30 to 0.99 0.01 to 0.99 0.300 to 0.999
Output Impedance (Ω) 25, 50, 75, 100, 125, 150
Automatically set
100 25, 50, 75, 100 120
Output Pulse 7 ns - 3 µs 25 ns - 3 µs 7 ns - 3 µs 20 ns - 16 µs
Pulse Amplitude 5 V pk to pk 5 V pk to pk nominal 3 V; 5 V 5 V pk to pk
and 14 V pk to pk
Low Battery Warning N/A
Backlight N/A
TX Null N/A N/A
Channels 1 1 1 2
Auto Shutdown
Result Storage N/A N/A N/A
Download to PC N/A N/A N/A
Printer Connection N/A N/A N/A
  Operation
2 wire N/A N/A N/A N/A
3 wire N/A N/A N/A N/A
Rating IP42 IP54 IP54 IP54
  Included Accessories
Lead Set*
Test/Carry Case
Serial Download Lead N/A N/A N/A
Download Software N/A N/A N/A
Batteries
3-Year Warranty

*Note: Cat. No. CFL535P comes equipped with dual fused, fitted test leads.
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