TDR2000/3, TDR2010 and TDR2050
Advanced Dual Channel TDR
TDR2000/3, TDR2010 and TDR2050
Advanced Dual Channel TDR
■
■
600 V CAT IV Input Protection filter built in
■
■
Step and Pulse TDR selections
■
■
Distance Dependant Gain
■
■
Test straight from the box
■
■
Trace Tagging
■
■
2ns pulse width
■
■
Designed for use on all metallic paired cables
DESCRIPTION
The Megger
®
TDR2000/3, TDR2010 and TDR2050 are state of
the art, dual channel, high resolution, compact Time Domain
Reflectometers with a colour screen for locating faults on paired
metallic cables.
All TDRs in this series have a minimum resolution of 0.1 m / 0.3 ft
and a 20 km / 65 kft maximum range depending on the velocity
factor selected and the cable type.
Various output impedances are available (
TDR2000/3 and 2010:
25, 50, 75, 100, 125 ohm + AUTO. TDR2050: 25, 50, 75, 100,
140 ohm + AUTO
) and an auto impedance matching feature. The
velocity factor can be set between 0.2 and 0.99 to meet any cable
test requirements.
FEATURES AND BENEFITS
The TDR2000 series have a large, high resolution, colour, WVGA
display with easy set up features. Directional control buttons,
together with soft keys, provide intuitive and easy operation for the
user.
An AUTO selection option ensures that the most effective
parameters are selected depending on the range required, aiding
rapid diagnosis of the TDR trace. The ability to manually override the
auto function allows fine tuning to enable identification of hard to
determine faults.
Dual trace and dual cursor capabilities allow full flexibility, giving the
operator full control and instant indication of distance between two
points.
A trace comparison feature also allows close examination between
trace conditions. Extra high resolution together with a white-light
backlight, user definable colour schemes give the graphical display a
vibrance, aiding the user in identifying key events on the trace.
600 V CAT IV input protection
TDR2050 is the first TDR in this class to include a built-in 600 V
input protection filter. The ability to connect to potentially live
circuits means a more flexible instrument suited for a wider range of
applications.
Trace Storage
100 internal trace memories provide for the storage and recall of
test results. The traces can be recalled to the display for analysis or
compared with an active display to aid in fault location.
Alternatively the stored results can be downloaded to a computer,
via the USB port, using the TraceXpert software and USB lead
provided.
Step TDR function
The Dead Zone effect of a standard pulse TDR can mask near end
faults and make them undetectable. The addition of a step function
on the TDR2050 eliminates this problem.
Step TDR technology means that the signal is injected at full
strength and stays there until a disturbance is detected. This makes
step TDR technology perfect for detecting near end faults that
standard pulse TDRs can miss.
Distance dependant gain
This feature, built into the TDR2050, eliminates the drop off of
signal attenuation on longer lines by gradually increasing the gain
along the returned signal, enabling a more even representation of
the relative attenuation at all points along the trace.
2
Fault identification
Megger’s own built-in AutoFind mode allows for speedy
identification of faults. One press of the AutoFind key automatically
adjusts the range and gain, and positions the cursor to the first
major event on the cable. Press the AutoFind key again and the
cursor will jump to the next detected disturbance.
FindEnd function
TDR2050 also incorporates a FindEnd function, which allows the
user to automatically search the trace to identify the end of the
cable under test. This is useful in situations where a fast cable
length measurement is required.
For those who wish to maintain manual control, manual operation
allows full override access to refine the response for easy fault
identification.
Colour schemes
The very different light conditions that could be present when using
the TDR2050, combined with the limitations of eye conditions such
as colour blindness, makes the addition of set colour schemes in the
instrument extremely important.
TDR2010 and TDR2050 have 6 additional set colour schemes on
top of the Default and Outdoor schemes included on other Megger
TDRs. There are also 2 custom slots where the user can specify their
own scheme by setting up to 7 screen elements to their own choice
of colour.
Trace Tagging
TDR2010 and TDR2050 also incorporate a Trace Tagging feature
which allows the user to add a name to saved traces. This could be
the circuit ID, building name or any other identifying text the user
wishes to save with the trace.
A text string of up to 32 alphanumeric characters can be stored
against each trace and this can consist of upper case letters
including accents.
TraceXpert PC software
The TDR2000/3, TDR2010 and TDR2050 come complete with
the Megger TraceXpert software which gives full control over
downloading, reporting and uploading of saved trace results.
Designed around a database and programmed for ease of use and
simplicity, TraceXpert offers the ideal application for all your data
processing requirements.
Models
The TDR2000 series is available in 4 models.
TDR2000/3
A fully featured high resolution TDR with backlit colour display and
powered by Li-ion rechargeable battery batteries. This model comes
complete with 2 pairs of mini-clip Test Leads.
TDR2000/3P
The same as the TDR2000/3 but with Dual fused test leads replacing
the mini-clip leads
TDR2010
The same as the TDR2000/3 but with Trace Tagging and additional
Colour Scheme selection.
TDR2050
The same as TDR2010 but with the addition of 600 V CAT IV rating,
Step, DDG and FindEnd functions.
BENEFITS
■
■
Backlit graphics colour LCD (800x480)
■
■
Adjustable display contrast
■
■
Resolution to 0.1 m
■
■
AutoFind guide to potential fault location
■
■
100 trace on board memory
■
■
USB connection to PC allowing upload and download of traces
■
■
“TraceXpert” PC software analysis tool
■
■
For use on Telecom TNV-3 circuit, or 150 V CAT IV power circuits
(TDR2000/3 and TDR2010 only)
■
■
For use on power circuits to 600 V CAT IV (TDR2050 only)
■
■
Power blocking filter built-in
■
■
Environmental protection to IP54
■
■
Selectable output impedance
TDR2000/3 and 2010: 25, 50, 75, 100, 125 ohm + AUTO.
TDR2050: 25, 50, 75, 100, 140 ohm + AUTO.
■
■
2ns pulse for near end fault location
■
■
AUTO option selecting gain and pulse for each range
■
■
AUTO option matches output impedance to cable
■
■
Display distance in metres or feet
■
■
Li-ion rechargeable battery (12 hours typical life)
SPECIFICATION
Except where otherwise stated, this specification applies at an
ambient temperature of 20°C
GENERAL
Range
Up to 20000 m with a minimum resolution of 0.1 m
(Maximum range dependent on cable type)
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
3
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
TDR2000/3 and 2010: 25, 50, 75,
100, 125 ohm + AUTO.
TDR2050: 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
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
TDR2000/3 and TDR2010
-
2 pairs 2 meters long consisting of
2 x 4 mm shrouded connector to
miniature crocodile clips
TDR2000/3P and TDR2050
-
2 pairs 1.5 meters long retractable
sheath leads
Display
800 x 480 pixel colour graphics
LCD, viewable in external
environments.
Colour Schemes
Selectable
TDR2000/3 x2
TDR2010, TDR2050 x8
Custom
TDR2000/3 x1
TDR2010, TDR2050 x2
Backlight
Permanent backlight with all
colour schemes (adjustable
brightness)
ENVIRONMENTAL
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)