Twisted Pair
Co-ax
TDR500 User Guide
TIME DOMAIN
REFLECTOMETER
Main Type
Sub Type Velocity Factor
Polyethylene
Jelly Filled Polyethylene
PTFE (Teflon)
Paper (Pulp 0.083uf/mile)
Paper (Pulp 0.072uf/mile)
Foam Polyethylene
Air Spaced Co-axial
Air
Solid Polyethylene
Megger Limited
Archcliffe Road, Dover
Kent CT17 9EN England
T +44 (0)1 304 502101
F +44 (0)1 304 207342
E uksales@megger.com
TYPICAL CABLE VELOCITY FACTORS
0.67
0.64
0.71
0.72
0.88
0.82
0.94
0.98
0.67
TELECOMMUNICATIONS CABLES
Plc
Gel filled
19 AWG 0.72
22 AWG 0.67
24 AWG 0.66
26 AWG 0.65
19 AWG 0.68
22 AWG 0.62
24 AWG 0.60
26 AWG 0.58
Pulp
Service Wire
22 AWG 0.67/0.71
24 AWG 0.68
26 AWG 0.66
0.64
SAFETY WARNINGS
● This instrument is not to be used on
energised cable.
● The instrument should not be used if any part
of it is damaged.
● Disconnect the test leads before accessing
the battery compartment.
● Refer to operating instructions for further
explanation and precautions.
● Safety Warnings and Precautions must be read
and understood before the instrument is used.
They
must be observed during use.
NOTE: THE INSTRUMENT MUST ONLY BE USED BY
SUITABLY TRAINED AND COMPETENT PERSONS
OPEN
CONDUCTOR
SHORTED
CONDUCTOR
SPLICE
BRIDGE TAP
SPLIT/
RESPLIT
WET SPLICE/
WATER
FRAYED
CABLE
WATER
INGRESS
TAP
SPLITTER
Mechanical
T
he instrument is designed for use indoors or outdoors and is
rated to IP54.
Case Dimensions 230mm long (9 inches)
115mm wide (4.5 inches)
4
8mm deep (2 inches)
Instrument Weight 0.6kg (1.32lbs)
Case Material ABS
Connectors BNC Terminal
Test Lead 300mm long with croc clips.
Display 122 x 32 pixel Graphics LCD.
Environmental
Operational Temperature -15
O
C to +50
O
C
(5
O
F to 122
O
F)
Storage Temperature -20
O
C to 70
O
C
(-4
O
F to 158
O
F)
Ordering Information
TDR 500
Included Accessories
Test & Carry case with strap 6420-125
Lead Set 6231-694
User Guide 6172-726
This instrument is manufactur
ed in the United Kingdom.
The company r
eserves the right to change the specifi
cation or design
without prior notice.
Megger is a registered trademark
Part No 6172-726 V02 Printed in England 1105
www.megger.com
Megger Limited
Archcliffe Road, Dover
Kent CT17 9EN England
T +44 (0)1 304 502101
F +44 (0)1 304 207342
E uksales@megger.com
Megger
4271 Bronze Way, Dallas,
Texas 75237-1019 USA
T +1 800 723 2861 (USA
ONLY)
T +1 214 333 3201
F +1 214 331 7399
E ussales@megger.com
Megger
Z.A. Du Buisson de la Couldre
23 rue Eugène Henaff
78190 TRAPPES France
T +33 (0)1 30.16.08.90
F +33 (0)1 34.61.23.77
E infos@megger.com
