Peter Dennis – Dover PPM Communications TDR2000/3 & TDR2000/3P Handheld time domain reflectometers Clear guidance for cable fault location Peter Dennis – Dover PPM Communications

TDR – Time Domain Reflectometer Identify cable faults, distance to fault and length of cable. In using a TDR you are not only capable of identifying faults on the cable but also find the distance to the fault. By simply entering the cable's length or velocity factor you can find and locate cable faults up to 20km or more on compatible instruments Current Models TDR500/3 TDR1000/3 TDR1000/3P

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. Used in Electrical, telephone and CATV industries. Provide information on cable status much faster than other methods 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

Product Uses TDRs are typically used to find existing faults on cables but also 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 drum) Locate and evaluate events such as splices and joints Detect and identify ingress faults such as water Detect and measure distance to cable taps Detect and isolate Load Coils on Telephone lines

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

The New Megger TDR2000/3 Auto Set Up Instant use Fast 2 ns Pulse Near end fault identification Long Reach 20 km maximum range Simple Operation Menu based GUI with soft keys Trace hold feature On screen trace comparison High Definition Display View screen in all light conditions

Key Product Features – TDR2000/3 Dual trace display with dual cursor and delta measurement 10m – 20000m ranges in 11 steps 2ns fast pulse to allow resolution of close in faults Trace hold with live Trace Overlay feature Xpert function for automatic fault location on trace Cable Impedance; 25, 50, 75, 100, 125 ohm and Auto Last setting ‘memory’ Inbuilt blocking filter 12 hr Battery life IP54 ingress protection Safety CATIII 300V (CAT IV 150V)

Key Product Features – TDR2000/3 High Clarity Display Aids definition of point of fault Dual Cursor With tagged cursor position Resolution to 0.1 m Fast & accurate fault location 2ns Pulse Allowing near end visibility

Key Product Features – TDR1000/3 AUTO Easy set up HOLD Allows trace hold on screen Live trace overlay on Hold Additional Modes Control pulse, gain, VOP and impedance Input Protection Cat III up to 300 Volts Cat IV up to 150 Volts TNV-3 systems

What’s in the box? TDR2000/3 TDR2000/3P CFL535G Test Lead Set (model dependent) Supplied CD with Manual Lithium Ion rechargeable battery pack (fitted) Carry Case with strap Mains battery charger Connectivity pack (USB cable, push on F-Type connectors)

Models, Spares and Accessories (correct as at 23/06/2013) TDR2000/3 Time Domain Reflectometer TDR2000/3P Time Domain Reflectometer with fused test leads CFL535G US version of TDR2000/3 with Bed-Of-Nails lead set Accessories 6231-652 Single miniature clip lead set 4mm Optional accessory 6231-654 Dual miniature clip lead set 4mm Included in TDR2000/3 1002-135 Single Fused test leads 1003-326 Dual Fused test leads Included in P version 6231-655 Bed-of-Nailss Test Leads (2 Pair) Included in CFL version 6231-653 Bed-of-Nails Test Leads (1 Pair) 1003-218 Terminal adaptor kit – 2 x ea BNC adapter, F-type quick release adapter, F-type to BNC 1003-217 Carry Case Included in all models 1003-352 AC-DC Charger 1002-552 Lithium Ion Battery 1003-353 Download kit comprising - User Guide CD, TraceXpert, USB Cable