The TDR500/3 is a hand held, compact Time Domain Reflectometer for locating faults on metallic cables. It has a minimum resolution of 0.1 m/0.3 ft and a 5 km/15 kft maximum range depending on velocity factor selected and cable type.
Four output impedances are available (25, 50, 75, and 100 Ω) and a velocity factor between 0.2 and 0.99 will meet any cable test requirements The TDR500/3 has a simple selection option which together with a 4 way control switch offers an intuitive operation for the user.

An AUTO selection option ensures that the most effective parameters are selected depending on the range required, aiding rapid diagnosis of the TDR trace. A clear operator controlled cursor allows instant measurement of the distance to the fault.
A trace HOLD feature also allows the operator to hold a trace on the screen, something not seen on most other handheld TDRs. Extra high resolution together with white-light backlight and grey scale tones give the graphical display a vibrancy, aiding the user in identifying key events on the trace.

The TDR500/3 is supplied with a miniature clip lead set (764-2822) ready to test telecom circuits. A fused test lead set for testing power circuits is available separately (please see RS 764-2831)
Single cursor cursor allows instant measurement of the distance to the fault
AUTO set up for instant use
Ultra fast pulse for near end fault identification
Trace HOLD feature
IP54 rating offers real life working
Designed for use on all metallic cable pairs
Backlit graphics monochrome LCD (256 x 128)
Adjustable display contrast
Resolution to 0.1 m
For use on telecom TNV-3 circuits, or 150V CAT IV power circuits
Power blocking filter not required
Environmental protection to IP54
Auto selected output impedance (between 25, 50, 75 and 100 Ω)
2ns pulse for near end fault location
AUTO option selecting gain and pulse for each range
Display distance in metres or feet
Uses five AA (LR6) primary cells