Operating Instructions
METRACABLE TDR PRO
Time Domain Reflectometer – Cable Fault
and Length Measuring Instrument
3-447-088-03
1/1.21
METRACABLE TDR PRO Gossen Metrawatt GmbH
Gossen Metrawatt GmbH METRACABLE TDR PRO
Table of Contents
1 Safety Instructions ................................................................................................... 1
2 Applications.............................................................................................................. 2
2.1 Intended Use / Use for Intended Purpose ............................................................. 2
2.2 Use for Other than Intended Purpose.................................................................... 2
2.3 Liability and Guarantee.......................................................................................... 2
2.4 Opening the Instrument / Repairs.......................................................................... 2
3 The Instrument ......................................................................................................... 3
3.1 Scope of Delivery.................................................................................................. 3
3.2 Symbols on the Instrument ................................................................................... 3
3.3 Instrument Overview ............................................................................................. 4
3.4 Technical Data...................................................................................................... 6
3.5 Supported Cable Types ........................................................................................ 7
4 Operation & Settings ................................................................................................ 8
4.1 Power Supply ....................................................................................................... 8
4.2 Switching the Instrument On/Off ........................................................................... 8
4.3 Display (TDR trace) ............................................................................................... 8
4.4 Instrument Menus................................................................................................. 9
4.5 Selecting Instrument Settings.............................................................................. 10
4.6 Changing Measurement Settings ........................................................................ 11
5 Measurements........................................................................................................ 12
5.1 Preparation......................................................................................................... 12
5.2 TDR Measurement.............................................................................................. 13
5.3 Measuring Coaxial Cables................................................................................... 15
5.4 Additional Functions............................................................................................ 15
5.5 Pinpointing and Identifying Faults........................................................................ 16
6 METRACABLE MANAGER..................................................................................... 18
6.1 Downloading & Installation .................................................................................. 18
6.2 Starting and Exiting the Program......................................................................... 18
6.3 Querying Help..................................................................................................... 18
6.4 Accessing Information on the Program and the Manufacturer ............................. 18
6.5 Program Settings................................................................................................ 19
6.6 Connecting the Instrument and METRACABLE MANAGER Software.................. 20
6.7 Synchronizing Instrument and PC Time............................................................... 21
6.8 Cable Database Management............................................................................. 22
6.9 Importing Measurements to the Software............................................................ 24
6.10 Viewing, Evaluating, Exporting, Saving and Printing Measurements..................... 25
6.11 Querying Instrument Information ......................................................................... 27
6.12 Instrument Updates ............................................................................................ 28
METRACABLE TDR PRO Gossen Metrawatt GmbH
7 Care and Maintenance........................................................................................... 30
7.1 Battery Replacement .......................................................................................... 30
7.2 Instrument Care.................................................................................................. 31
7.3 Accessories Care................................................................................................ 31
8 Product Support..................................................................................................... 32
9 Repair and Replacement Parts Service /
Calibration Center and Rental Instrument Service ............................................... 32
10 CE Declaration........................................................................................................ 33
11 Return and Disposal............................................................................................... 34
Gossen Metrawatt GmbH METRACABLE TDR PRO
1 Safety Instructions
Observe this documentation, in particular all included safety information, in order to protect
yourself and others from injury, and to prevent damage to the instrument.
• Carefully and completely read and adhere to these operating instructions for the instrument.
The respective documents can be found at http://www.gossenmetrawatt.com. Retain
these documents for future reference.
• Use only the recommended accessories with the instrument.
• Tests may only be performed by a qualified electrician, or under the supervision and
direction of a qualified electrician. The user must be instructed by a qualified electrician
concerning performance and evaluation of the tests.
• Wear suitable and appropriate personal protective equipment (PPE) whenever working
with the instrument.
• Always comply with all safety rules and other regulations which are applicable at the place
of use.
• Comply with applicable safety regulations, for example in accordance with
DIN VDE 0100, DIN VDE 0800 and DIN VDE 0805.
• If the instrument doesn’t function flawlessly, remove it from operation and secure it
against inadvertent use.
• The instrument may only be used as long as it’s in good working order.
Inspect the housing before use. Pay particular attention to any possible cracks and the
insulation around the sockets.
• Accessories and cables may only be used as long as they’re fully intact.
Inspect all cables and accessories before use. Pay particular attention to damaged housings, interrupted insulation or kinked cables.
• Do not use the instrument after long periods of storage under unfavorable conditions
(e.g. humidity, dust or extreme temperature).
• Do not use the instrument after extraordinary stressing due to transport.
• Use the instrument only within the specified ambient conditions.
• Use the instrument only in accordance with the specified protection class (IP code).
• The instrument must not be exposed to direct sunlight.
•
The instrument and the included accessories may only be used for the easurements described in this document and the instrument‘s documentation.
• Do not apply any external voltage to the instrument.
• Do not use the instrument if the battery compartment cover has been removed.
Otherwise you risk touching dangerous voltages.
• Hands must be kept behind the probe/terminal guards during testing.
• The operator must check the safety of the circuit before starting the test, and appropriate
precautions must be implemented.
• Circuits must be de-energized and isolated before making any test connections.
• The instrument may only be used with voltage-free cables.
• The instrument is equipped with a Bluetooth
the implemented frequency range of 2.402 to 2.480 GHz is permissible in your country.
• Always create a backup copy of your measurement data.
®
module. Determine whether or not use of
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METRACABLE TDR PRO Gossen Metrawatt GmbH
2 Applications
2.1 Intended Use / Use for Intended Purpose
The METRACABLE TDR PRO is a time domain reflectometer for localizing faults in electrical
cables (e.g. twisted pair, coaxial and power cables), and for measuring their lengths. The
instrument is connected to the voltage-free cable to this end, to which it transmits a pulse.
The pulse’s reflection, i.e. its TDR trace, appears at the instrument’s display panel. The
shape of the trace indicates the length of the cable, any included components, the wiring
itself and even any cable faults.
The METRACABLE TDR PRO can be used in indoor environments, in laboratories, in industrial settings and on construction sites. It’s a portable instrument which can be held in the
hand during measurement, or hung around the neck using the carrying strap. Alternatively,
the METRACABLE TDR PRO can be set up on a suitable surface with the help of the tilt
stand. It can be stored and transported in the included pouch.
The instrument and the cable database can be managed and measurements can be transferred to a PC and viewed with the help of included METRACABLE MANAGER software.
Safety of the operator, as well as that of the instrument, is only assured when it’s used for its
intended purpose.
2.2 Use for Other than Intended Purpose
Using the instrument for any purposes other than those described in these condensed operating instructions, or in the instrument’s operating instructions, is contrary to use for intended
purpose.
2.3 Liability and Guarantee
Gossen Metrawatt GmbH assumes no liability for property damage, personal injury or consequential damage resulting from improper or incorrect use of the product, in particular due
to failure to observe the product documentation. Furthermore, all guarantee claims are rendered null and void in such cases.
Nor does Gossen Metrawatt GmbH accept any liability for data loss.
2.4 Opening the Instrument / Repairs
The instrument may only be opened by authorized, trained personnel in order to ensure flawless, safe operation and to assure that the guarantee isn’t rendered null and void.
Unauthorized modification of the instrument is prohibited.
If it can be ascertained that the instrument has been opened by unauthorized personnel, no
guarantee claims can be honored by the manufacturer with regard to personal safety, measuring accuracy, compliance with applicable safety measures or any consequential damages.
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Gossen Metrawatt GmbH METRACABLE TDR PRO
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3 The Instrument
3.1 Scope of Delivery
Please check for completeness.
1 METRACABLE TDR PRO (with carrying strap) (M281A)
4 LR6 batteries, 1.5 V, type AA
1 Set of test probes (1.3 m, banana plugs, 300 V Cat II)
2 Alligator clips (plug-on)
1 BNC adapter (banana plug to coaxial cable)
1 Pouch (with carrying strap)
1 Condensed operating instructions
Included “METRACABLE MANAGER” software is available from our website at http://
www.gossenmetrawatt.com. For further information concerning the software please refer to
the following section: “METRACABLE MANAGER
3.2 Symbols on the Instrument
Warning concerning a point of danger
(attention, observe documentation!)
18”.
European conformity marking
The instrument may not be disposed of with household trash.
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METRACABLE TDR PRO Gossen Metrawatt GmbH
Eyelet for Carrying Strap
Fall Protector
LCD Panel
ESC Key
SEL Key
Scroll keys (for control)
ON/OFF Key
Battery Display
Fall Protector and Battery
Compartment Lid
4 mm Banana Plug Jacks
3.3 Instrument Overview
Front
Top
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Gossen Metrawatt GmbH METRACABLE TDR PRO
Battery Compartment
Lid and Fall Protector
Tilt Stand
Eyelet for Carrying Strap
Back
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METRACABLE TDR PRO Gossen Metrawatt GmbH
3.4 Technical Data
Power Supply 4 ea. LR6 battery, 1.5 V, type AA or
4 ea. rechargeable NiMH, 1.2 V, type AA
Operating time Up to 30 hours
(depending on battery type and quality),
adjustable automatic shutdown
Connections 2 ea. 4mm banana plug safety jacks
Place of use Indoor environments, laboratories, industrial settings, construction
sites
Ambient
Conditions
Operating temperature: -10 ... +50 °C
Storage temperature: -25 ... +75 °C
Relative humidity: No condensation allowed
Elevation: Max. 2000 m
Electrical
Safety
Pollution degree: 1
Protection category: II per DIN EN 61140/VDE 0140-1
Surge protection DC: 100 V
AC: 230 V / 50 Hz
Electromagnetic
Compatibility (EMC)
Interference emission: EN 55011: 2015
Interference immunity: EN 61000-4-2: 2009
EN 61000-4-3: 2006
Mechanical
Design
Housing (W × H × D): Approx. 19.5 × 10.0 × 4.5 cm
Mechanical protection: Impact-resistant ABS housing with fall pro-
tector and display protection (2 mm Plexiglas with hardened safety glass)
Protection: IP 52
per DIN VDE 0470, part 1/EN 60 529
(protection against ingress of solid foreign
objects: 1.0 mm diameter, protection
against ingress of water: protection
against falling dripping water, when the
housing is inclined up to 15°)
Weight: approx. 390 g (without batteries)
Display: LCD, monochrome, luminous,
240 x 128 pixels, adjustable on-time and
contrast for background illumination
Internal Memory Up to 32 entries in the cable database
Up to 510 measurements in the instrument
Languages German, English, French
Interface Bluetooth
®
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Gossen Metrawatt GmbH METRACABLE TDR PRO
Shielded Cable
Twisted Pair Cable Multi-wire LineCoaxial Cable
Measurements Signal type: Symmetrical search signal
Range: 14 km
Accuracy: +1% ± pixels at 0.66 VF
Resolution: 3.125 ns or 0.3 m (depending on cable)
Output pulse: Max. 20 V pp
Pulse lengths: 12, 25, 50, 100, 200, 500, 1000 and
2500 ns
Velocity factor: Variable from 0.2 to 0.99
in steps of 0.01
Impedance: 50, 75, 100, 125 Ω
Signal type: Symmetrical
Zoom
In steps of 6 dB
(magnification factor):
3.5 Supported Cable Types
Symmetrical cables with maximum attenuation of 80 dB can be measured using the TDR
method. Examples:
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METRACABLE TDR PRO Gossen Metrawatt GmbH
Note!
C1:38,7m 0.67
Cursor0m 150 ~ 75m
Absolute Cursor Position
Impedance Display
Cursor
VF Display
Battery Display
Display Range Lower Limit
Function Selected via the
and Scroll Keys
Display Range Upper Limit
Input Display, AC (~) or DC (–)
4 Operation & Settings
This section describes operation of the instrument and the settings which can be selected
for the instrument, as well as for measurements performed with the instrument.
• Power Supply
• Switching the Instrument On/Off
• Display (TDR trace)
• Instrument Menus
• Selecting Instrument Settings
• Changing Measurement Settings
4.1 Power Supply
The instrument is battery-operated. Charged batteries are shipped loose, which you installed
during initial startup
If the batteries are depleted and have to be replaced “Battery Replacement”
4.2 Switching the Instrument On/Off
Press the ON/OFF key in order to switch the instrument on and off. The TDR trace is displayed
immediately after pressing the ON/OFF key.
4.3 Display (TDR trace)
The TDR trace appears in the display as a default function.
The cursor can be moved to the right or the left with the help of the scroll keys. Pressing and
holding the scroll key causes the cursor to move more quickly.
By pressing the SEL key, a function is selected which can then be controlled with the help of
the two scroll keys, namely Cursor, Length, Y-Zoom or X-Zoom. For example if length is
selected, length can be reduced or increased with the help of the scroll keys.
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condensed operating instructions (included with the instrument).
30.
Detailed information concerning the use of the TDR trace display “Measurements”
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