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Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer (UK)

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1005-021
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The Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer can be used to locate faults on paired metallic cables such as those present in power circuits used for street lighting. For a quick introduction to this product, please see the following video.

The Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer has a maximum range of 20 km/ 65 kft (dependent on the velocity factor and cable type). Distances can be displayed in either metres or feet and to a minimum resolution of 0.1m/ 0.3 ft. This cable fault locator also features a range of output impedances: 25Ω, 50Ω, 75Ω, 100Ω and 140Ωm, as well as an automatic impedance matching feature. To ensure that the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer can meet the cable requirements of any cable, the velocity factor can be set between 0.2 and 0.99.

The Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer’s Auto Selection function ensures that the instrument is always set to the most effective parameters for the application. It will select the relevant gain and pulse for each range and matches the output impedance to the cable. This improves the rapidity with which traces can be diagnosed. It is possible to override the Auto Selection function allowing the user to configure the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer in order to identify hard-to-determine faults.

In addition to an Auto Selection function, the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer also includes a number of features and functions designed to aid with the precision, ease and efficiency of fault location.

Dual Trace and Dual Cursor

These capabilities increase the flexibility and adaptability of the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer: the operator has complete control and will receive an instant indication of the distance between two points.

Trace Comparison

Facilitates comprehensive examinations of trace conditions, allowing the user to identify key events quickly, accurately and reliably.

Step TDR Function – UNIQUE to the TDR2050

Optimised for detecting near-end faults that are often missed due to the dead zone effect caused by the standard pulse of TDRs. A standard pulse can mask near-end faults making them impossible to detect; the inclusion of a step function prevents this from happening.

When engaged the Step TDR function will inject the cable-under-investigation with a 2ns pulse signal at full strength and will maintain this injection until a disturbance is detected.

Distance Dependent Gain – UNIQUE to the TDR2050

This function gradually increases the gain along the returned signal in order to prevent the drop off of signal attenuation on longer lines. This feature proves particularly useful when determining a more even representation of the attenuation at all the points along the trace.

AutoFind Mode

When the AutoFind mode’s button is pressed the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer will adjust the range and gain automatically to facilitate the most efficient and effective way of identifying faults. A single press of the AutoFind button will also place the cursor at the first event on the cable; when pressed a second time the cursor will move to the next detected disturbance.

The Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer’s integrated AutoFind mode is ideal for identifying faults quickly.

FindEnd Function – UNIQUE to the TDR2050

Designed for measuring cable length, this function will automatically search the trace to identify the cable’s endpoint, providing a length measurement.

This function can be manually overridden allowing the operator to refine the search in order to identify the fault.

Another feature unique to the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer is its 600V CAT IV input protection filter; this allows the user to connect the instrument to live circuits thereby expanding its scope-for-use.

Measurements and traces are viewable via the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer’s large, high resolution, colour, WVGA display. The display’s white backlight and user-settable colour palettes, as well as the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer’s high resolution, improves the ease with which key events within the trace can be identified.

The Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer includes eight user-settable colour schemes, including the default and outdoor palettes. This cable fault locator also includes two custom slots that allow the user to specify the colour of up to seven screen elements, allowing him/her to tailor the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer’s display to his/her preferences.

The ability to alter the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer’s colour schemes allows the user to tailor the tester to his/her environment. It also accommodates for eye conditions such as colour blindness.

Traces can be saved to the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer’s internal memory. It has the capacity to accommodate up to one-hundred traces saved with unique identifiers. Traces may be saved with a name consisting of up to 32 alphanumeric characters including capital letters and accents.

Saved traces can be recalled to the display, allowing the user to conduct further analysis and/or compare the recorded trace with the active trace. The Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer’s directional control buttons and soft keys provide intuitive and easy operation of the instrument, allowing the user to access saved results, functions, features and modes simply and quickly.

 It is also possible to export data to a PC via a USB port and using the supplied USB lead and Megger TraceXpert Software. The Megger TraceXpert Software can be used to download and upload data as well as create reports. This software program is optimised for ease-of-use and facilitates simple and effective data processing.

Finally, in addition to accuracy, versatility and flexibility, the Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer has been optimised for practicality and as such features a compact, rugged, IP54-rated design. It is also equipped with a Li-ion rechargeable battery capable of supplying up to twelve hours of power.

The Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer is a compact, comprehensive and customisable cable fault locator optimised for precision and efficiency.  

Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer Key Features

  • Locate faults on paired metallic cables
  • Suitable for checking power circuits used for street lighting
  • Maximum range: 20 km/ 65 kft (dependent on the velocity factor and cable type)
  • Distance is indicated in either metres or feet
  • Minimum resolution: 0.1m/ 0.3 ft
  • Output impedance range: 25Ω, 50Ω, 75Ω, 100Ω and 140Ωm
  • Automatic impedance matching feature
  • Cable velocity factor can be set to between 0.2 and 0.99
  • Auto Selection function: selects the relevant gain and pulse and matches the output impedance to the cable
  • Auto Selection function improves the rapidity with which traces can be diagnosed
  • Auto Selection function can be overridden in order to identify hard-to-determine faults
  • Dual Trace and Dual Cursor: operator has complete control and receives instant indication of the distance between two points
  • Trace Comparison: examine trace conditions to identify key events
  • Step TDR function is unique to this model
  • Step TDR function: injects a 2ns pulse signal at full strength until a disturbance is detected; ideal for identifying near-end faults
  • Distance Dependent gain feature is unique to this model
  • Distance Dependent Gain: increases the gain of the returned signal to prevent the drop off of signal attenuation on longer lines
  • Distance Dependent Gain: provides a more even representation of attenuation at all points along the trace
  • AutoFind: adjusts the range and gain automatically and moves the cursor to the first event on the cable; pressing the button again will move the cursor to the next event
  • FindEnd function is unique to this model
  • FindEnd function: traces the cable to identify its endpoint providing a length measurement
  • The FindEnd function can be manually overridden
  • Integrated 600V CAT IV input protection filter
  • Large, high-resolution, colour, WVGA display
  • The display’s high-resolution, white backlight and user-settable colour palettes improve the ease with which key events can be identified
  • Eight user-selectable colour palettes including default and outdoor
  • Two custom slots allow the user to specify the colour of up to seven screen elements
  • User-selectable colour palettes allow the user to tailor the instrument to the environment
  • User-selectable colour palettes accommodate for eye conditions such as colour blindness
  • Save up to 100 traces to the integrated memory
  • Traces can be saved with unique identifiers consisting of up to 32 alphanumeric characters including capital and accented letters
  • Directional control buttons and soft keys
  • Intuitive user interface
  • Download data to a PC via a USB interface and using the supplied Megger TraceXpert Software
  • Download, upload and create reports using the Megger TraceXpert Software
  • Supplied with a USB lead
  • Compact, rugged, IP54-rated design
  • Li-ion rechargeable battery capable of supplying up to 12 hours of power
  • A compact, comprehensive and customisable cable fault locator
  • Optimised for precision and efficiency

What’s Included?

  • Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer
  • 2x Retractable Sheath Fused Test Lead Sets
  • Megger TraceXpert Software
  • USB Lead
  • AC-DC Charger
  • User Guide CD
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Part Code1005-021

Megger TDR2050 Dual Channel Power Plus Time Domain Reflectometer Technical Specifications 

Specifications 
Except where otherwise stated, this specification applies at an ambient temperature of 20°C
General Specifications 
Range: Up to 20000 m with a minimum resolution of 0.1 m
m ft ns
10 30 125
25 80 250
50 160 500
100 320 100
250 800 2500
500 1600 5000
1000 3200 10000
2500 8000 25000
5000 16000 50000
10000 32500 100000
20000 65000 200000
Accuracy ±1% of range ±1 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 This instrument complies with IEC61010-1 to protect the user in the event of connection to live systems. TDR2050 is rated at 600 V CAT IV whilst all other models are rated at 150 V CAT IV. TDR2050 is specifically designed to allow use on energised systems up to the rated voltage. All other models are designed for use on de-energised systems and fused leads must be used if the potential voltage between terminals could exceed 300 V
Output pulse Up to 20 volts peak to peak into open circuit. Pulse widths determined by range, cable and model used.
Gain Set for each range with user selectable steps (in Manual operating mode).
Velocity factor Variable from 0.2 to 0.99 in steps of 0.01
TX null

Automatic

Trace Tagging - 32 characters chosen from upper case letters including accents

Colour schemes - Default, Outdoor, Custom

Step TDR - Eliminates the Dead Zone effect.

DDG - Available in ranges 1000 m and above in 0.5 dB steps

Cable Impedance: 25, 50, 75, 100, 140 ohm + AUTO.

Power down User programmable auto power off timer 1, 5, 10 mins or never
Battery Li-ion rechargeable battery
Battery charge time 6 hours at 0 °C to 40 °C
Battery life 12 hours typical
Safety These instruments comply with IEC61010-1 for connections to live systems up to 150 V CAT IV or 300 V CAT III (TDR2000/3 and 2010 only). TDR2050 is rated at 600 V CAT IV. Fused leads must be used if the voltage between terminals exceeds 300 V. Compliant with EN60950-1, EN61010-1, UN38.3 and EN62133
EMC Complies with Electromagnetic Compatibility Specifications (Light industrial) BS EN 61326-1, with a minimum performance of ‘B’ for all immunity tests.
Mechanical Specifications 
IP rating The instrument is designed for use indoors or outdoors and is rated to IP54.
Case ABS
Dimensions 290 mm (11.4 in) x 190 mm (7.5 inches) x 55 mm (2.2 inches)
Weight 1.7kg (3.8lbs)
Connectors Four 4mm-safety terminals and two F connectors. Other standard push on adapters will fit. F connectors not available on TDR2050.
Test lead 2 pairs 1.5 meters long retractable sheath leads
Display 800 x 480 pixel colour graphics LCD, viewable in external environments.
Colour Schemes: 8x selectable; 2x custom
Backlight Permanent backlight with all colour schemes (adjustable brightness)
Environmental Specifications 
Operating temperature range and humidity -15 °C to +50 °C (5 °F to 122 °F)
Storage temperature range and humidity -20 °C to 70 °C (-4 °F to 158 °F)
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