Communications Test
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1 Communications Test CFL510G Handheld TDR
description
Communications Test. CFL510G Handheld TDR. The New Megger CFL510G. Auto Set Up Instant use Fast 2ns Pulse Near end fault identification Long Reach 15,000 ft maximum range Simple Operation 4 way control Trace hold feature On screen comparison High Definition Display. Technology. - PowerPoint PPT Presentation
Transcript of Communications Test
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Communications Test
CFL510G Handheld TDR
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The New Megger CFL510G
Auto Set Up• Instant use
Fast 2ns Pulse• Near end fault identification
Long Reach• 15,000 ft maximum range
Simple Operation• 4 way control
Trace hold feature• On screen comparison
High Definition Display
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Technology
Well proven Long used technology Electrical, telephone and CATV industries. Increasing in use
• Provide information on cable status much faster than other methods.
• Some industry commentators suggest that a TDR will be built into many instruments in the future
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Product Uses
TDRs are typically used to find existing faults on cables and have more applications in related areas such as:
• Defining and proving a cable installation• Establishing a benchmark for future comparison• Cable length measurement (installed and on reel)• Locate and evaluate events such as splices and joints• Detect Bridge taps
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Additional Uses
Also research by NASA suggests that Aircraft Maintenance can be aided by regular TDR measurement
TDR may be used to identify chafing of electrical wires on aircraft
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Key Product Features – CFL510G
Virtual TDR• Coming soon on
MeggerNetworks.com
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Key Product Features – CFL510G
High Clarity Display• Aids definition of point of fault
Dual Cursor• With tagged cursor position
Resolution to 0.3 Feet• Fast & accurate fault location
2ns Pulse• Allowing near end visibility
Trace hold capability• With live trace overlay
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Key Product Features – CFL510G
AUTO• Easy set up
HOLD• Allows trace hold on screen• Live trace overlay on Hold
Additional Modes• Gives control over pulse, gain
Input Protection• Cat III up to 300 Volts• Cat IV up to 150 Volts• TNV-3 systems
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TDR Overview
TDRs locate and identify faults on metallic paired cable TDRs look for a change in impedance on the cable
• Cable damage, water ingress, taps and slices, flaws, etc.
A pulse of energy is transmitted down a cable• When the pulse reaches the end of the cable, or a fault, part of
the energy is reflected back• The reflected pulse can identify the nature and location of the
fault
Used in Electrical, telephone and CATV industries. • Provide information on cable status much faster than other
methods
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Typical TDR Reflections
TDR used to locate cable faults and determine length
Shape of reflected pulse indicates fault type
Knowing VOP for cable allows distance to fault to be displayed
Length of cable on drum can be determined
Variable pulse widths enable location of near and far faults
TYPICAL TRACES
OPEN CONDUCTOR SHORTED CONDUCTOR
SPLICE BRIDGE TAP
SPLIT / RESPLIT FRAYED CABLE
TAP
WET SPLICE /WATER WATER INGRESS
SPLITTER
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Key Product Features – CFL510G
Single trace display with dual cursor 30 ft – 15,000 ft ranges in 6 steps 2ns fast pulse to allow resolution of close in faults Trace hold with live trace overlay Cable Impedance; 25ohm, 50ohm, 75ohm, 100ohm
and Auto Last setting ‘memory’ Inbuilt blocking filter 16 hr Battery life IP54 ingress protection Safety CATIII 300V (CAT IV 150V)
