VDV501-090
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®
For Professionals...Since 1857
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The Klein Tools Ranger™ TDR is a portable time domain refl ectometer
calibrates Nominal Velocity of Propagation (NVP) values, fi nds faults in
cables, and provides built-in tone generation for cable tracing.
±1% and ±3 ft (1 m) length accuracy.
Tests most types of copper cable including data, voice, video, lamp
wire, siamese, and NM cables.
Automatic pre-test voltage checks.
Tone generator with selectable tone cadence to easily trace cables
with an analog tone probe (not included).
6.8" x 3.15" x 1.3" (17.3 x 8.0 x 3.3 cm)
0°C / 32°F to 50°C / 122°F
-20°C / -4°F to 60°C / 140°F
10% to 90%, non-condensing
10,000 ft (3,050 m) maximum
400V peak 50/60Hz AC or DC
Spread Spectrum Time Domain Refl ectometry
consistent cable parameters
To ensure safe operation and service of the tester, follow these instructions.
The Ranger™ TDR should NOT be used on energized cabling
Voltage range of less than 60V peak AC or DC may pose a safety
Warning: Potential for personal injury.
Always wear approved eye protection.
Also known as the Velocity of Propagation
electrical signal traveling through a cable,
safe voltage standards when using electronic
An F-Connector is a common connector for a
coax cable, often associated with televisions.
transmit small signals in high noise environments.
technology, TDR-SS allows for a length test on
cables without interference from voltage.
The VDV501-815 kit includes several accessories to facilitate testing on
almost all popular cable types. See
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A. Length Adjustment Indicator:
adjusted during Calibration Mode. Indicates tone style can be
J. Battery Life Indicator:
within the range of 25ft to 1000ft (10m to 300m).
The Memory button is used to store up to two NVP values
two memory storage locations: M1 and M2.
A long press (two seconds) of the button stores an NVP
value in the selected storage location.
A long press (two seconds) of the Memory and Calibration
The Calibration button allows you to discover the NVP
value based on an inputted cable length.
50ft to 1,000ft or 20m to 300m.
A long press (two seconds) of the Calibration button
aborts Calibration mode and enters Test Mode.
The Test button initiates length testing on the connected cable.
A short press runs a single test on demand.
A long press (two seconds) of the button starts loop
testing. Pressing any button (except Power) stops loop
testing (or the unit turns off after 3 minutes).
The Tone button allows you to trace cables by sound.
A short press of the button transmits an audio tone from
the unit through the connected cable.
An analog tone probe (not included) must be used in
A long press (two seconds) of the Power button powers
Subsequent presses of the button toggle the backlight on and off.
A long press (two seconds) of the button powers off the
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TURNING THE UNIT ON AND OFF
The unit will immediately run a length test at startup.
The Ranger™ TDR will automatically turn off after a period of inactivity in
which mode the unit is in.
ensure quick and accurate testing.
The cable to be tested should be evaluated for the presence
cable should be disconnected from any voltage source before
The "Voltage!" icon appears on the LCD when the voltage on
the cable surpasses the SELV rating of 60V peak AC or DC. The
Connect the F-connector coupler (barrel connector) to the input
The cable to be tested should be terminated with an F-connector
The opposite end of the cable to be tested should be left unterminated
Attach the cable to be tested to the Ranger™ TDR by carefully
screwing or pushing the terminated end onto the F-connector
coupler, depending on what type of F-connector was used to
Testing Twisted Pair (8P8C) Cable:
Connect the F-connector coupler (barrel connector) to the input
The cable to be tested should be terminated with a female RJ45
jack on the end that will be attached to the Ranger™ TDR.
The opposite end of the cable to be tested should be left unterminated
Attach the included F-connector-to-male-RJ45 plug adapter to the
Attach the RJ45 plug adapter end to the female RJ45 jack of the
Testing Two-Conductor Cable:
Connect the F-connector coupler (barrel connector) by carefully
screwing it into the input port of the Ranger™ TDR.
The cable to be tested should have a pair of exposed
conductors that run side-by-side. This includes inner pairs on
The opposite end of the cable to be tested should be left open
Attach the included F-connector to alligator clips adapter to the
Securely attach the alligator clips to the exposed conductors of
Connect the BNC coupler (barrel connector) by carefully screwing
The cable should be terminated with a BNC connector.
The opposite end of the cable to be tested should be left
Attach the BNC connector of the cable to be tested to the female
There are three ways to obtain NVP values for a cable.
The NVP can usually be obtained by checking the cable specifi cations
The NVP can be estimated based on the type of cable (RG6, Cat5e,
etc.) using the chart on page 13.
The NVP can be calculated using a known length of the cable that
will be used during testing.
Prepare a length of the same type of cable for which you need to
The Ranger™ TDR can calculate an NVP from a test cable length
accurate results. It is recommended to use at least 50ft (20m).
50ft (20m) is the default setting in Calibration Mode.
Determine the physical length of the test cable length. Use the
Connect the test cable length to the Ranger™ TDR as described in
"Preparing to Test Cables" section.
Select the unit of measurement (feet or meters) by pressing and
Enter the known cable length using the Calibration button and Up
and Down buttons. The Calibration button adds 50ft (20m) with
each press. The Up and Down buttons increase or decrease the
Press the Test button. After a few seconds, the calculated NVP
will appear in the bottom left corner of the LCD.
Press and hold the Memory button to save the new NVP in the
current storage location (M1 or M2).
If the calculated NVP is outside of the range 20.0 to 99.9, the LCD
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The NVP value must be set correctly in order to obtain an accurate length
Use the Up and Down buttons to set the NVP value shown in the
The Ranger™ TDR has two storage locations for NVP values.
Press the Memory button repeatedly to toggle between memory
Press and hold the Memory button. The up and down arrows
shown on the LCD screen will disappear when the new value has
Recall a stored value by pressing the Memory button until the
TESTING CABLE & DETERMINING LENGTH
tested should be left open on the opposite end from the tester.
terminated with an impedance closely matching the characteristic
Attach the cable to be tested as instructed in
Note that the connection to the cable to be tested should be as
short as possible to ensure the Ranger™ TDR does not see the
Determine the correct NVP value for the cable to be tested as
Turn the unit on by pressing the Power button.
Change the unit of measurement if necessary by pressing and
the cable will appear in the upper right hand corner of the screen.
The screen will display "Short" if the two conductors are directly
connected or have a low resistance connection between them.
The length will be shown up to the shorted point.
The screen will display "Open" if the two conductors are not
them. This is the normal condition for performing length testing.
cable, only the length up to that point will be displayed.
The screen will display "Error" and show dashes instead of the
the cable is improperly terminated or there has been excessive
The Ranger™ TDR can run continuous tests when set to Loop Mode.
signal loss, and enabling you to test multiple cables without having to
While in Test Mode, press and hold the Test button.
The screen will momentarily fl ash "LOOP", then run a test every
two seconds and display the results.
Pressing any other button except the Power button exits
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Tone Mode can be used to trace cables by sound. A cadence is emitted
from the unit through a connected cable. The cadence can only be
audible to the human ear without the probe.
Attach the cable to be toned as instructed in
Press the Up button or Down button to switch cadences (HI, LO,
Use a tone probe to trace the cable being toned.
See the tone probe's instruction manual for more information on
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single screw in the middle of the back of the Ranger™ TDR
with a #1 Phillips head screwdriver. Remove battery door.
and recycle exhausted batteries.
4 AA 1.5V alkaline batteries (IEC LR6, ANSI/NEDA 15A).
This product is warranted to be free from defects in materials and work-
warranty period, Klein Tools has the option to repair or replace or refund
the purchase price of any unit which fails to conform to this warranty
age which occurs in shipment or failure which results from alteration,
tampering, accident, misuse, abuse, neglect, or improper maintenance.
warranty. A purchase receipt or other proof of original purchase date will
Any implied warranties, including but not limited to implied warranties
express warranty. Klein Tools shall not be liable for loss of use of the
economic loss, or for any claim or claims for such damage, expenses or
sions may not apply to you. This warranty gives you specifi c legal rights,
and you may also have other rights which vary from state to state. If
your Klein product requires repair or for information on how to exercise
your rights under the terms of this warranty, please contact Klein Tools
Turn instrument off and disconnect any cables. Clean the instrument by
section, allow the instrument to return to normal
This symbol indicates that equipment and its accessories
shall be subject to a separate collection and correct disposal.