Armada Technologies Pro400 Manuale utente
Pro400
TDR Cable Fault Locator
Operating Instructions
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 18-inch test leads, soft case, batteries and user
manual.
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.
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.
3
Risk of electric shock. The voltage of the parts marked with this
symbol may be dangerous.
1.2 Standards
The Pro400 has been manufactured in accordance with and meets
the requirements of the following international standards:
SAFETY IEC 61010-1
EN 60950
EMC BS/EN 61326-1
Water/Dust Proof to IP54
Section 2 - Introducing the Pro400
The Pro400, 3,000-foot range Time Domain Reflectometer (TDR)
weighing 13 oz. 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-nanosecond pulse rise time “close in”
cable faults can be clearly identified. 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 19,000-foot
cable run can be scanned in seconds. 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 that allows a cable to be identified with a tone
tracing probe like the Armada Pro210F.
4
2.1 Pro400 Features
2. LCD display
3. Left ◄( ) button / Decrease
4. Right ►(+) button / Increase
5. Menu and Range ⎋Adjust button
6. Test Start ▼button
7. Power On/Off button
8. Backlight On/Off button
9. Select and Gain Adjust button
1.
BNC test connector
5
2.2 Specifications
Preset Ranges (ft)
20, 45, 90, 180, 360, 750, 1500, 3000
(Meters)
7, 15, 30, 60, 120, 250, 500, 1km
Range Select
Range ⎋+ ◄►
Accuracy
1% of selected range*
Resolution
Approx 1% of range
Sensitivity
Min 3-pixel return at 10,000 ft on 22
AWG, PE, TP
Velocity Factor
Adjustable from 1% to 99%
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
From default up to +7 dB
Tone Generator
810 –1100 Hz
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 pixels
Voltage Protection
250 volts AC
Operating Temp
14° F / 120° F (-10° / 50°C)
Storage Temp
0° F / 150° F (-20° / 70°C)
Dimensions
6.5 x 3.5 x 1.5 in (165 x 90 x 37 mm)
Weight
12 ounces (350 g)
Safety
IEC 61010-1 EN
60950
EMC
EN 61326-1
Water/Dust Proof
IP54
6
* Measurement accuracy of <+/- 1% assumes the instrument
setting for velocity of propagation (Vp) of the cable under test to
be accurately set, homogeneity of the Vp along the cable length,
and accurate cursor positioning.
2.3 Accuracy
The Pro400 can 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 multi-wire cable,
including power cable, and is lower when a cable is tightly wound
on a reel 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:
1. Model
2. Software version programmed into tester.
3. Battery condition indicator (all black batteries, fully charged, as
charge decreases symbol changes to white).
7
Prior to use the following parameters will need to be set
1. Auto shutdown
2. Set contrast
3. Select unit of measure
4. Select velocity of propagation
Level 2. Menu
To change the following settings from the menu, select using the
keys. Press Select key to open.
3.3 Set Auto Shutdown
To preserve battery life, the Pro400
has an auto shutdown feature.
Shutdown time is selectable between
disabled, 1 minute, 2 minutes, and 3
minutes. To Change settings press ▼to
move
to shut down, use to select the
TDR
Vp %Vc
VP=67%
Main 25Ω
Feet
Contrast
Shutdown: 3 minutes
3.2
Menu and Screen Displays
Level 1. Start up screen
To access level 2 Menu
press
►
and release.
8
setting. To exit press , selected
values will be automatically stored.
3.4 Set Unit of Measure (Level 2)
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: Vp is the correction factor for your cable needed to keep the
distance cursor accurate. 67% = 0.67. Experiment to get the best
value.
3.5 Set Cable Impedance (Z)
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 Propagation (Vp)
Velocity of propagation may be set as % or speed in microseconds
(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
Vp %Vc
VP=67%
Main 25Ω
Feet
Contrast
Shutdown: 3 minutes
TDR
Vp %Vc
VP=67%
Main 25Ω
Feet
Contrast
Shutdown: 3 minutes
9
Press ▼to move to Vp type, press
►to set to Vp % Vc. Press ◄or
►to increase or decrease
displayed value. Press to return
to screen. Selected values will be
automatically stored.
3.7 Backlight
The LCD display is fitted with an LED backlight to enable easy
viewing under a variety of different lighting conditions. The
backlight is switched on and off with key.
3.8 How to Determine Vp Settings
If the Pro400 TDR is to be used with a cable type for which the Vp
is unknown, this must first be determined by following the steps
below.
1. Take a sample of the cable at least 300 ft long.
2. Measure the actual length of cable using a rule or tape
measure, or some other reliable method.
3. Connect the Pro400 TDR 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 test screen above will be displayed.
1. Vp setting
TDR
Vp %Vc
VP=67%
Main 25Ω Feet
Contrast
Shutdown: 3 minutes
10
2. Impedance setting (Z)
3. Range scale
4. Selected gain value
5. Distance of cursor
6. Cursor
7. Output pulse
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
Multi-conductor Cable
Coaxial Cable: Connect the red clip to the center 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.
Shielded Cable
Twisted Pair
Indice
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