99 Washington Street Melrose, MA 02176
800.517.8431 TestEquipmentDepot.com
Pro400Pro400
TDR Cable Fault Locator
Operating Instructions
ARMADA
CONTENTS
Section 1 Receiving the Pro400
Section 2 Introducing the Pro400
Section 3 First operations
Section 4 Using the Pro400
Section 5 Maintenance
1.1 Safety notices.................................................3
1.2 Standards.......................................................4
2.1 Pro400 features..............................................5
2.2 Specifications .................................................6
2.3 Accuracy ........................................................7
3.1 Preparing the Pro400 .....................................7
3.2 Menu & screen displays .................................8
3.3 Set auto shutdown .........................................8
3.4 Set unit of measure ........................................9
3.5 Set cable impedance......................................9
3.6 Set Velocity of propergation ...........................9
3.7 Backlight.......................................................10
3.8 How to determine unknown Vp Settings ......10
4.1 Testing a cable .............................................12
4.2 Selecting range scales .................................12
4.3 Single shot and Continuous scan mode ......12
4.4 User Gain adjustment ..................................13
4.5 Tone generator .............................................13
4.6 Adjusting contrast.........................................14
4.7 Typical fault displays ....................................14
4.8 Typical Cable Vp & Impedance values.........15
5.1 Battery replacement .....................................16
5.2 Cleaning .......................................................16
5.3 Storage.........................................................16
Section 6 Warranty & Repair
6.1 Contacting us ...............................................17
2
Section 1 - Receiving the Pro400
Upon delivery of the Pro400, ensure the contents are consistent with the
packing list, notify your supplier of any missing items.
If the equipment appears damaged, notify your carrier and supplier
immediately, giving a detailed description of any damage, save the
damaged packaging to substantiate your claim.
The Pro400 includes a 50cm test lead, soft case, batteries and user
manual.
Warning
?This instrument meets the safety requirements of IEC61010-1: 1995
?ThePro400 is designed for use on de-energized circuits only.
?Connection to line voltages will damage the instrument and could be
hazardous to the operator
?This instrument is protected against connection to telecom network
voltages according to EN61326-1.
?Safety is the responsibility of the operator
International Electrical Symbols
This symbol signifies that the instrument is protected by double
or reinforced insulation. Use only specified replacement parts
when servicing the instrument.
This symbol on the instrument indicates a WARNING, and that the
operator must refer to the user manual for instructions before
operating the instrument. In this manual, the symbol preceding
instructions indicates that if the instructions are not followed, bodily
injury, installation/sample and product damage may result.
Risk of electric shock. The voltage of the parts marked with this
symbol may be dangerous.
3
1.2 Standards
The Pro400 has been manufactured in accordance with and meets the
requirements of the following international standards:
SAFETY IEC 61010-1
EMC BS/EN 61326-1
Water/Dust Proof to IP54
EN 60950
Section 2 - Introducing the Pro400
The Pro400, 6km (19,000ft) range Time Domain Reflectometer weighing
only 350 grams (13oz) fits neatly into the hand. With its 128x64 pixel
backlight display, provides accurate and easy to read fault locations on
metallic cables. With a 3 nano second pulse, rise time “near end” cable
faults can be clearly identified without the need to surpress the
transmitted pulse. Housed in a rugged IP54 rated ABS enclosure, the
Pro400 is suitable for outside use.
Using pulse widths and gain settings which are pre determined for the
length range selected and with only 7 operating buttons, all major
operating and setting parameters can be easily accessed. In addition to
the pre determined gain settings there is a user variable gain control to
further enhance the displayed trace. A 6km cable run can be scanned in
seconds, allowing the operators a view of the cable run, yet arriving
quickly to the fault. By using the Pro400 scan lock facility, cable can be
continually scanned or the trace held for closer analysis. To enable the
Pro400 to test all metallic cables, four user selectable output impedances
are provided 25, 50, 75 & 100 ohms.
Faulty cables may be traced using the Pro400 warble tone feature, an
oscillating tone is injected into the suspect power or transmission line and
by using a commercially available tone tracing probe the suspect line can
be identified.
4
2.1 FeaturesPro400
1
Pro400
V1.0
3
6
8
1. BNC Input connector
2. LCD Start up screen
3. Cursor left button / increase range
4. Cursor right button / decrease range
5. Menu and range select button
6. Test start button
7. Power on/off button
8. Back light on/off button
9. Select/Gain Button
2
4
9
5
7
5
2.2 Specifications
Ranges Meters 7, 15, 30, 60, 120, 250, 500, 1km, 2km, 3km, 6km
Feet 23, 49, 98, 197, 394, 820, 1640, 3280, 6560,
Range Selection Manual range control
Accuracy 1% of selected range*
Resolution Approx 1% of range
Sensitivity Min 3 pixel return at 4km on 0.6mm Ø, PE, TP
Velocity Factor Adjustable from 1% to 99% or equivalent in ft/mtr
Output Pulse 5 volts peak to peak. Into open circuit
Output Impedance Selectable 25, 50, 75 & 100 ohms
Output Pulse Width 3 ns to 3 ms, Automatic with range
Scan Rate 2 scans / second or scan held
User Gain Adjustment Default > 7dB
Tone Generator 810 – 1100Hz
Battery Life 7 hours continuous scanning
Power Supply 6 volts 4 x 1.5 AA Alkaline cells
Power Down Selectable 1, 2, 3, 5 minutes or disabled
Back Lit Display 128 x 64 pixel
Voltage Protection 250 volts AC
Operating Temp -10º / 50ºC
Storage Temp -20º / 70ºC
Dimensions 165 x 90 x 37 (6.5 x 3.5 x 1.5 ins)
Weight 350 gms (12oz)
Safety IEC 61010-1
EMC BS/EN 61326-1
Water/Dust Proof IP54
* Measurement accuracy of <+/- 1% assumes the instrument setting for
velocity of propergation (Vp) of the cable under test to be accurately set,
homogeneity of the Vp along the cable length, and accurate cursor
positioning.
9850, 19000
per S
?
EN 60950
6
2.3 Accuracy
The Pro400 is able to measure distances to faults and cable lengths to
an accuracy of +/- 1%.
This measurement accuracy is based on the correct value of Vp being
used for the cable under test, and homogeneity of the Vp along the
cable length.
If the Vp is set incorrectly by the operator, or the Vp varies along the
length of the cable, then additional errors will be incurred and the
measurement accuracy will be affected.
Note:- The Vp is less well defined with unshielded multicore cable,
including power cable, and is lower when a cable is tightly wound on a
drum than when installed.
Section 3 - First Operation
3.1 Preparing the Pro400 for use
Press button to power the tester, the following screen will be displayed:
Pro400
2
1 Model
2 Software version programmed into tester
3 Battery condition indicator (all black battery, fully charged, as charge
decreases symbol changes to white).
Prior to use the following parameters will need to be set
1 Auto shutdown section 3.3
2 Set contrast section 4.5
3 Select unit of measure section 3.4
4 Select velocity of propergation section 3.6
V1.0
7
1
3
3.2 Menu and Screen Displays
Level 1. Start up screen
To access level 2 Menu press
and release.
Pro400
TDR
V1.0
MENU
100m/us T/P 100 60m
25.0m
dB=DEF
Ω
Level 2. Menu
To change the following settings from menu, select using
the keys. Press Select key to open.
3.3 Set Auto Shutdown
To preserve battery life, the Pro400 is
TDR
V/2 m/us
100m/us
T/P 100
Ω
Metres
Contrast
Shutdown: 2minutes
fitted with an auto shutdown feature.
Shutdown time is selectable between
disabled 1 minute, 2 minutes and 3
minutes.
To change settings press to move
to shutdown, use or to select
setting. To exit press , selected
values will be automatically stored.
8
3.4 Set Unit of Measure (Level 2)
TDR
V/2 m/us
100m/us
T/P 100
Ω
Metres
Contrast
Shutdown: 2minutes
Press to move to unit of
measure (feet or meters).
Press or to scroll between feet
and meters. Press button to exit,
selected value will be automatically
stored.
Note:- When unit of measure has been selected, this will automatically
change the V/2 figure, which will also be displayed in the selected unit
of measure (ft/mtr).
3.5 Set cable Impedance (Z)
TDR
V/2 m/us
100m/us
Coax 75
Ω
Metres
Contrast
Shutdown: 2minutes
Press to move cursor to Z, to
scroll between values press or To
exit press , selected values will be
automatically stored.
3.6 Set Velocity of Propergation (Vp) Level 2
Velocity of propergation (Vp) may be set as % or speed in micro seconds
(ms). The unit of measure, the speed is displayed in (feet or meters), will
be determined by the setting selected in section 3.4
TDR
V/2 m/us
100m/us
Coax 75
Ω
Metres
Contrast
Shutdown: 2minutes
Press to move to displayed unit,
press to scroll between v/2 M/Ms or
Vp % UC.
Press to move to displayed unit,
press or to increase or decrease
displayed value, press to return to
screen. Selected values will be
automatically stored.
9
3.7 Backlight
The LCD display is fitted with an L.E.D. backlight to enable easy viewing
under a variety of different lighting conditions. The backlight is switched
on and off with the key.
3.8 How to determine Vp settings
If the TDR Pro400 is to be used with a cable type for which the Vp is
unknown, this must first be determined.
1. Take a sample of the cable at least 100m or 300ft long.
2. Measure the actual length of cable using a rule or tape
measure, or some other reliable method.
3. Connect the TDR Pro400 and adjust the Vp setting such that
the tester gives a correct reading of the sample length.
Section 4 - Using the Pro400
Upon completion of the set up procedures in section 3, press button
and the following test screen will be displayed
2
1
Vp=67% Coax 75 7m
Ω
6
7
3
5
0.4m
dB=DEF
1. Vp Setting
2. Impedance setting (Z)
3. Range scale 7 mtrs
4. Selected Gain value
5. Distance of cursor
6. Cursor
7. Output pulse
8. Scan mode icon (indicating scan mode selected)
10
8
4
Attach the test lead set to the Pro400 via the BNC connector
located at the top of the unit,
1. Ensure that no power supply or equipment is attached to
the cable to be tested
2. Ensure that the far end of the cable under test is open or
shorted (not fitted with a resistive termination)
3. Attach the Pro400 to one end of the cable to be tested
Coaxial Cable
Shielded Cable
Vp=67% Coax 75 7m
0.4m
Ω
Twisted Pair
Multi-conductor Cable
Coaxial Cable: Connect the red clip to the centre wire and
the black clip to the shield/screen.
Shielded Cable: Connect the red clip to a wire adjacent to
the shield and the black clip to the shield.
Twisted Pair: Separate out one pair and connect the red and
black clips to the two wires of the pair.
Multicore Cable: Connect the clips to any two wires.
11
4.1 Testing a cable
Having followed the set up procedures in the preceding sections, a typical
display showing impedance anomalies is shown below. Further
examples are shown in section 4.6.
Vp=72% Z=100?
64m
180m
129m
The vertical cursor line is moved left or right along the line of the trace by
pressing and buttons to determine the distance to the event. Position
the cursor at the beginning of the event and read off the distance at the
bottom left corner.
On the fault display shown above a low impedance fault occurs at 64
meters shown by a negative spike, and a high impedance at 129 meters.
To increase the gain of the return see section 4.4. The open end of the
cable is shown as a large positive spike, this is used to determine the end
of the cable run and the overall length of the cable being 180 meters.
4.2 Selecting Range Scales
The Pro400 has 11 range scales covering the range of 0.5 to
6,000 meters.
To select a range scale, or scan the cable run, press and hold
down the Range button and press to decrease range,
press to increase range.
4.3 Single shot and Continuous Scanning Modes
When the is first switched on, it is set to “Single Shot”
Pro400
mode.
In this mode the Pro400 only fires a pulse into the cable under
test when either the and buttons or button is pressed.
12
Single Shot Mode: Saves on battery life and also
enables the Pro400 to be disconnected from the cable
while still leaving the fault display on the screen
To enter “Continuous Scanning” mode press down and hold the
button.
The icon will appear at the bottom right of the display, when
continuous scanning mode is activated.
Continuous Scanning Mode: fires pulses into the
cable under test. In this mode the Pro400 is able to
more easily identify intermittent cable faults.
4.4 Gain Adjustment
To increase the gain of the return pulse, align cursor at the begining of the
event. press and hold button, press keys to increase or decrease
gain.
4.5 Tone Generator
Pro400
The may also be used as a tone generator to trace and identify
cables and wires. The user will need a conventional inductive tone probe
within the range 810 Hz to 1110Hz.
To select tone generator (Level 2)
Press to select . To open
press Select To Escape press .
13
OPEN
CONDUCTOR
SHORTED
CONDUCTOR
SPLICE
BRIDGE TAP
SPLIT/
RESPLIT
WET SPLICE/
WATER
FRAYED
CABLE
WATER
INGRESS
TAP
SPLITTER
When tone has been selected, connect test lead to cable pair to be traced
and using tone probe which will emit a tone, the volume will increase the
nearer the probe is to the cable / being traced.
Note:- The auto off function is disabled in tone generator mode so that the
tone can be injected into a cable for extended periods while tracing takes
place.
4.6 Set Contrast (level 2)
Press to select , press Select .
Press to increase or decrease
contrast. Press to return.
4.7 Typical Fault Displays
The following diagrams show typical fault traces to assist you in the
identification of faults using the Pro400:
14
4.8 Typical Cable V.P and Impedance Values
Type Vp Z Type Vp Z
Cat5 STP 72 100 T/Pair Jelly PE 64 100
Cat5 UTP 70 100 T/Pair PE 67 100
Coax Air 98 50/75 T/Pair PTFE 71 100
Coax Air Space 94 50/75 T/Pair PVC 58 100
Coax Foam PE 82 50/75 T/Pair Paper 72nF 88 100
Coax Solid PE 67 50/75 T/Pair Paper 83nF 72 100
15
Section 5 - Maintenance
5.1 Battery Replacement
Disconnect the instrument from any cable or network link
?Turn the instrument off
?Loosen the two black screws and remove the battery
compartment cover
?Replace the batteries with 4 x 1.5 volt Alkaline batteries,
observing the polarities
?Refit the battery compartment cover and refit the two screws
5.2 Cleaning
Disconnect the instrument from any source of electricity
?Turn the instrument off
?Use a soft cloth lightly dampened with soapy water, wipe over
the instrument, rinse the cloth in clean water squeezing out any
excess water, wipe over the instrument removing any soap
residue, dry instrument with a dry cloth
?Do not splash water directly on the instrument
?Do not use alcohol, solvents or hydrocarbons
5.3 Storage
If the instrument is not to be used for a period of more than 60
days, it is recommended that the batteries are removed and
stored separately (see 5.1)
16
Section 6 - Repair and Warranty
The instrument contains static sensitive devices and is not user
serviceable. If an instrument fails, or its protection has been impaired, it
should not be used but sent back for repair by suitably trained and
qualified personnel.
instruments are guaranteed against breakdown due to
New
manufacturing or component defects for 36 months after the purchase
date by the user.
Note:- Any unauthorized prior repair or adjustment to the instrument will
automatically invalidate the warranty
The quality management system of BI Communications fulfils the
stringent requirements of the international quality standard BS EN ISO
9001. Quality System Certificate No 12500.
17
Notes
18
99 Washington Street
Melrose, MA 02176
800.517.8431
TestEquipmentDepot.com
ARMADA
Loading...