Megger CFL510G Specifications

Hand-held Time Domain Reflectometer

CFL510G

Hand-held Time Domain Reflectometer

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Dual cursors for pinpointing faults

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Auto set-up for instant use

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2 ns pulse width virtually eliminates

dead zones

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Unique trace HOLD feature for

comparison between cables

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IP54 rating

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Designed for use on all metallic cable

pairs

n

Three-year warranty

CFL510G

DESCRIPTION

The CFL510G 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/15,000 ft
maximum range depending on velocity factor selected and
cable type.

Four output impedances (25, 50, 75, and 100 Ω) are
available and a velocity factor between 0.2 and 0.99 will
meet any cable test requirements.

The CFL510G has a simple selection option which, together
with a four-way control switch, offers an intuitive operation
for the user.

APPLICATIONS

This CFL510G is primarily designed for linemen in both the
communication and power industries. Specific capabilities
include:

Telephony

Provides fast and accurate results when uncovering
transmission related problems. Designed to be carried on a
linesman’s belt and used in the first line of defense when
diagnosing and locating cable faults.

Specific line activities identified by this unit include:

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Bridge taps and splices

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Presence of water in the cable

n

Opens in tip, ring, or sheath

n

Shorts between tip, ring, and/or sheath

n

Capacitive networks

n

Load coils

n

Wet splices and high-resistance splices

CATV/Cellular

Ideal for testing the physical integrity of cables within a
network. The unit is also capable of locating illegal cable
taps.

Specific cable conditions identified include:

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Bends or crimps in the cable

n

Cuts or shorts in the cable

n

Taps and splits

n

Water saturation

Power

An ideal tool for identifying faults on secondary power
cables. This unit identifies:

n

Burnouts in aluminum conductors

n

Good splices, wet splices, and high-resistance splices

n

Shorts between phases

CFL510G

Hand-held Time Domain Reflectometer

FEATURES AND BENEFITS

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An AUTO selection option ensures that the most effective

parameters are chosen, depending on the range required,
aiding rapid diagnosis of the TDR trace.

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Dual cursors allow complete flexibility, giving the user

full control and instant indication of distance between
two points.

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A unique, easy one-button press and HOLD feature

allows comparison between cable conditions.

n

Extra high resolution, a white-light backlight, and

grayscale tones gives a vibrant graphical display, useful
in identifying key events on the trace.

n

Additional features include:

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Backlit graphics monochrome LCD (256 x 128)

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Adjustable display contrast

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Resolution to 0.1 m

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For use on telecom circuit or 150 V CATIV power

circuit

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Power blocking filter not required

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Environmental protection to IP54

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Auto selected output impedance (between 25, 50, 75

and 100 ohms)

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2 ns pulse for near-end fault location

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AUTO option selecting gain and pulse for each range

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Display distance in meters or feet

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Uses five AA (LR6) batteries

SPECIFICATIONS

Except where otherwise stated, this specification applies at an
ambient temperature of 68o F (20o C).

General

Ranges

30 ft, 75 ft, 300 ft, 750 ft, 3000 ft, 7500 ft, and 15,000 ft
(10 m, 25 m, 100 m, 250 m, 1000 m, 2500 m, and 5000 m)

Accuracy

±1% of range ± pixel at 0.67 VF
(The measurement accuracy is for the indicated cursor position
only and is conditional on the velocity factory being correct.)

Input Protection

Complies with IEC61010-1 for connection to live systems up to
150 V CAT IV when used with the optional fused test lead set.

Output Pulse

5 V peak to peak into open circuit. Pulse widths determined by
range and cable.

Gain

Set for each range with three user selectable steps (in manual
operating mode)

Velocity Factor

Variable from 0.2 to 0.99 in steps of 0.01

TX Null

Automatic

Refresh Rate

3 per second

Power Down

Automatic after 5 minutes with no key press

Backlight

Stays on for one minute with no key press

Power

Five AA (LR6) type batteries, manganese-alkali or nickel metal­dydride cells

Battery Life

Up to 14 hours (typical)

Mechanical

Designed for indoor or outdoor use, rated to IP54

Case Dimensions

9 in. x 4.5 in. x 2 in. (230 mm x 115 mm x 48 mm)

Instrument Weight

1.32 lbs (0.6 kg)

Case Material

ABS

Connectors

Two 4 mm-safety terminals

Display

256 x 128 pixels, graphics LCD

Environmental

Operational Temperature: 5o F to 122o F (-15o C to +50o C)
Storage Temperature: -4o F to +158o F (-20o C to +70o C)

Safety

When using the optional fused test lead set, the instrument
complies with IEC61010-1 for connections to live systems with less
than 300 V between the terminals and up to 150 V CAT IV to earth

EMC

Complies with Electromagnetic Compatibility Specifications
(light industrial) BS/EN61326-1, with a minimum performance of
“B” for all immunity tests

CFL510G Instrument Front View

Easy-to-read

graphics LCD

Function keys

HOLD button, allows trace

hold on screen; live trace

overlay on HOLD

CFL510G

Hand-held Time Domain Reflectometer

Dual cursors

Brightness

Toggle Switch

AUTO button, easy setup

#1: Left cursor

#2: Right cursor

Tool setting allows quick

changes of TDR settings:

VF, Gain, Pulse Width,

Impedance

ORDERING INFORMATION

Item (Qty) Cat. No.

CFL510G Hand-held TDR 1001-790

Included Accessories

Hard carry case 5410-420

Miniature clip test lead set 6231-652

Bed of nails test lead set 6231-653

Socket BNC to 2x4mm 50 Ohm 25965-154

User guide CD 2002-178

Optional Accessories

Fused test lead set 1002-015

UK

Archcliffe Road, Dover
CT17 9EN England
T [phone]
F [phone]
[e-mail]

UNITED STATES

2621 Van Buren Avenue
Norristown, PA 19403 USA
T 1 866-254-0962 (USA only)
T [phone]
F [phone]
[e-mail]
(case sensitive email address)

OTHER TECHNICAL SALES OFFICES

Dallas USA, College Station USA,
Sydney AUSTRALIA, Täby SWEDEN,
Ontario CANADA, Trappes FRANCE,
Oberursel GERMANY, Aargau
SWITZERLAND, Dubai UAE, Mumbai
INDIA, Johannesburg SOUTH AFRICA,
and Chonburi THAILAND

ISO STATEMENT

Registered to ISO 9001:1994 Reg no. Q 09250

Registered to ISO 14001 Reg no. EMS 61597

CFL510G_DS_US_V03

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Megger is a registered trademark