Megger TDR500 Data sheet
TDR500
Cable Fault Locator
DESCRIPTION
The Megger‚ TDR500 cable fault locator breaks new
ground as a cost effective high specification hand held
Time Domain Reflectometer (TDR) for locating faults on
metallic cables.
Designed for the field engineer requiring a low cost
solution to field testing, the TDR500 offers all the benefits
of Megger build quality and reliability in a high quality
affordable package.
Transmission line testing
The TDR500 is suitable for virtually all types of
transmission cable including twisted pair, coaxial and
parallel conductors. Condition of the entire cable or
section is displayed graphically.
30m to 3 km Range
Suitable for identifying and locating a range of cable faults
from a few metres up to 3 Km on non-energised cables.
Cable characteristics are clearly displayed on the 122 x 32
pixel LCD display.
Simple Operation
Operation of the TDR500 is simplicity itself. No multifunction keys to confuse the operator. Each button has its
own dedicated function.
Just connect the test lead to the de-energised cable to be
tested. Switch on the TDR and set the Velocity factor.
Cable route tracing
The TDR500 can inject an oscillating 810 Hz/1.11 kHz tone
onto the de-energised transmission line or power line.
The warble tone allows the engineer to trace the faulty
cable pair with the use of a commercially available tone
tracing probe.
■ Simple operation
■ Warble tone generator
■ Velocity Factor from 0.30 to 0.99
■ Range to 3km
■ Tough ABS case
■ IP54 Environmental protection
■ Carry case and test leads included
■ 3 year manufacturers warranty
TDR500
Cable Fault Locator
BENEFITS
■ Hand held operation
■ High contrast monochrome graphic LCD display
(122 x 32 pixel).
■ Resolution to 1% of range.
■ Adjustable display contrast
■ Environmental protection to IP54
■ Display distance in metres or feet.
■ Uses standard AA (6LR61) primary or rechargeable cells
■ 3 year warranty reduces long term ownership cost
APPLICATIONS
Non-energised cable testing and tracing including:
Traditional ‘Transmission Medium Test Equipment’
■ Telecommunications
■ CATV (Cable TV)
■ Aerospace
■ Electrical Contractors
■ Network Installers
■ Utilities
■ IT Departments
■ Railway signalling
Private networks
■ Campus and industrial networks
■ Building automation
Stock control
■ Cable distribution channels
■ Cable manufacturers
Industrial communications
■ Fieldbus network installations
■ Site maintenance engineers
Except where otherwise stated, this specification
applies at an ambient temperature of 20°C.
SPECIFICATION
General
Except where otherwise stated, this specification applies at an
ambient temperature of 20°C.
Ranges:
30m, 100m, 300m, 1000m, 3000m (100ft, 300ft, 1000ft, 3000ft,
10000ft)
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:
For connection to de-energised cable only
Output pulse:
5 volts peak to peak into open circuit from 100 Ω source
Pulse widths determined by range and cable impedance
Gain:
Automatic with gain and range
Velocity Factor:
Variable from 0.30 to 0.99 in steps of 0.01
Refresh Rate:
Three times per second
Power Down:
Automatic after 5 minutes with no key press
Warble:
5 V pk-pk from 100 Ω, alternating between 810 Hz and 1110 Hz
Batteries
Six LR6 (AA) type batteries, Manganese-alkali or nickel-cadmium
or nickel-metal-hydride cells
Nominal voltage:
9 V for Alkali or 7.2 V for NiCad.
Battery consumption:
100 mA nominal. (30 hours continuous use)
Safety
This instrument is to be used on de-energised cable only.
EMC
Complies with Electromagnetic Compatibility Specifications (Light
industrial) BS EN 61326-1, with a minimum performance of ‘B’ for
all immunity tests.
Mechanical
The instrument is designed for use indoors or outdoors and is
rated to IP54.
TDR500
Cable Fault Locator
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