BI COMMUNICATIONS TX8000 Manuale utente
TX8000
Operating Instructions
Version 1.1
Z = 50Ω VoP= 67 %Vc RANGE = 120m
CONT
CUR
C1 2
GAIN
X1
?
ALKA
11.75m
20.65m
C1 2: 8.90m
TH
2TX8000 Operating Instructions
Section 1 Notices
1.1 Receiving the TX8000........................................................ 3
1.2 Safety notices.................................................................... 3
1.3 Standards .......................................................................... 4
Section 2 Introducing the TX8000
2.1 TX8000 features................................................................. 5
2.2 Specifications.................................................................... 6
2.3 Accuracy ............................................................................ 7
Section 3 Initial preparation of TX8000
3.1 Fitting / replacing batteries .............................................. 8
3.2 Key pad functions ............................................................. 8
3.3 on/o functions................................................................. 9
3.4 Keypad backlight .............................................................. 9
Section 4 Preparing the TX8000 for use
4.1 Screen displays and menu.............................................. 10
4.2 Set Velocity of Propagation unit..................................... 11
4.3 Set length unit of measure ............................................. 11
4.4 Set display brightness..................................................... 11
4.5 Set auto shutdown.......................................................... 11
4.6 Set language.................................................................... 11
Section 5 Using the TX8000
5.1 Measurement display...................................................... 12
5.2 Setting cable parameters................................................ 13
5.3 Selecting range scales..................................................... 13
5.4 Selecting scan modes, Compare and tone generator ... 13
5.5 Use of cursors.................................................................. 13
5.6 Gain control..................................................................... 13
5.7 Connecting to a cable to be tested................................. 14
5.8 How to determine unknown VoP values........................ 14
5.9 Typical fault displays ...................................................... 15
Section 6 Maintenance
6.1 Fitting and changing batteries ....................................... 16
6.2 Cleaning........................................................................... 16
6.3 Storage............................................................................. 17
Section 7 Repair and warranty
7.1 Contacting Bi Communications Ltd .............................. 17
Contents
3
TX8000 Operating Instructions
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.
Section 1 - Notices
1.1 Receiving the TX8000
Upon delivery of the TX8000, 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 TX8000 Includes, 0.5 mtr test lead, shoulder/neck strap, screw driver, 4 x AA
batteries, protective case and Quick start instruction manual.
1.2 Safety Notices
• This instrument meets the safety requirements of IEC61010-1: 1995
• TheTX8000 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
WARNING
4TX8000 Operating Instructions
1.3 Standards
The TX8000 has been manufactured in accordance with BI Communications
ISO 9001-2015 quality system and meets with the following international
standards:
Safety IEC 61010-1
EN 60950
EMC BS/EN 61326-1
Water/ Dustproof to IP67
Section 2- Introducing the TX8000
The TX8000 is a 6 Km range Time Domain Reflectometer housed in a rugged
over moulded case being water proof to IP67 and drop resistant, designed for
outdoor use, but suiciently small and light weight for general use and may
be operated using one hand. Using a 3.5-inch QVGA colour display information
is clearly displayed; an illuminated keypad makes the TX8000 ideal for use in
poorly lit areas.
Using 11 range scales with a first range of 7 meters near end faults are clearly
visible. Using the scan hold function faults may be retained on screen for
closer examination or when in scan mode intermittent faults may be easily
identified. By using the trace hold and compare feature the current trace may
be displayed and compared with a new trace. The user variable gain function
allows small events on the wave form to be magnified for clearer identification.
With dual cursors each cursor giving its length measurement and a dierential
distance between cursors the length of the fault may be identified. To assist in
the identification of faults a number of fault types may be super imposed over
the displayed fault for easier identification.
5
TX8000 Operating Instructions
2.1 TX8000 features
Drop proof, Water/
dustproof to IP67
Dual cursors
Distance between
cursors
3.5” Colour
QVGA Display
Fault
indication
overlay
Illuminated
keypad
Over
moulded
case
Output via 2 x 4mm
Safety Sockets
Z= 75 . VoP+ 76 %Vc RANGE= 30m CONT
CUR
C1 2
GAIN
X1
?
ALKA
14.23m
20.65m
C1 2: 8.90m
Shorted Conductor
6TX8000 Operating Instructions
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, 9850, 19000
Range Selection Manual range control
Cursors Dual cursors with a distance measurement
between cursors
Accuracy 1% of selected range*
Resolution Approx. 1% of range
Sensitivity Min 3 pixel return at 4km on 0,6mm Æ , PE , TP
Velocity Factor Adjustable from 10% to 99% or equivalent
in Ft/ meters per micro second
Output Pulse 5 volts peak to peak. Into open circuit
Output Impedance 25, 50, 75, 100 & 120 ohms
Output pulse 3 ns to 3 us, Automatic with range
Scan Rate 2 scans / second or scan held
Tone Generator 810 – 1100Hz
Battery Life 7 hours typical use
Power Supply 6 volts, 4 x 1.5 AA Alkaline cells or NMH
rechargeable cells
Power Down 1, 2, 3, 5, 10 and 15 minutes or disabled
Display 328mm x256mm QVGA
Voltage protection 250 volts AC
Operating Temp -10º / 50ºC
Storage Temp -20º / 70ºC
Dimensions 220 x 98 x 58 mm / 8.7x3.8x2.3 inches
Weight 0.5 Kg / 1pouind 2 ounces
Safety IEC 61010-1 EN 60950
EMC BS/EN 61326-1
Protection Class IP67
* Measurement accuracy of +/-1% assumes the instrument setting for VoP of
the cable under test to be accurately set, homogeneity of the VoP along the
cable length, and accurate cursor positioning.
7
TX8000 Operating Instructions
2.3 Accuracy
The TX8000 is able to measure distances to faults on cable lengths to an
accuracy of +/- 1%, this accuracy is based upon the correct value VoP being
selected and homogeneity of the VoP along the cable length. If the VoP varies
additional errors will be incurred which may aect the measurement accuracy.
NOTE: - The VoP is less well defined with unshielded multicore cables including
power cables and is lower when a cable is tightly wound on a drum than when
installed.
8TX8000 Operating Instructions
3.1 Fitting batteries
The TX8000 is supplied with 4 X AA 1.5-volt batteries. These will need to be
installed, please refer to section 6.1 for installation procedure. The TX8000 is
designed to accept AA size Alkaline cells or rechargeable NMH cells. Because
Alkaline and NMH cells discharge at dierent rates the battery condition indi-
cator is customised to accommodate each type, therefore the type of battery
fitted will need to be selected. The type of batteries fitted are displayed at (9)
and the battery status at (10) on the measurement screen, see section 5.1.
Section 3.2 Keypad functions.
Section 3 Initial preparation of TX8000
1. To commence trace / hold trace
2. Escape to exit TDR mode
3. Increase setting
4. Cursor right/Option
5. On/O and keyboard light
6. Decrease setting
7. Cursor le/Option
8. Enter to save selected
setting and select active
cursor
9. Set/Sel to select screen
options
9
9
TX8000 Operating Instructions
3.3 On/O functions
Upon compleon of item 3.1 press and release key (5), the start up
display will be shown momentarily and will be followed by the baery
selecon display below.
This display will only be shown when the batteries are removed or re-
placed. Follow the on-screen instructions to select battery type.
To turn o press and hold Key (5) until the display closes.
3.4 Key Pad Backlite
Upon switching on the TX8000 the key pad backlite will be turned on for 20
seconds, by pressing any key this will restart the illumination for 20 seconds.
The illumination may be turned On or O by momentarily pressing key (5). If
manually turned o it will not start automatically with a key press. The function
will return to automatic when the TX8000 is switched o and restarted.
Please Select Battery Type
1. ALKALINE
2. NIMH
Please Use UP/DOWN Arrow Keys
To Select Battery Type
Press ENTER to complete Selections
10 TX8000 Operating Instructions
Section 4 preparing the TX8000 for use
4.1 Screen displays and menus
11.75m
20.65m
C1 2: 8.90m
Please Select Battery Type
1. ALKALINE
2. NIMH
Please Use UP/DOWN Arrow Keys
To Select Battery Type
Press ENTER to complete Selections
TX 8000
V1
MEASUREMENTS
SETTINGS
HELP
1 VOP UNIT VP%
2 LENGTH UNIT METERS
3 BRIGHTNESS HIGH
4 AUTO SHUTDOWN 2mins
5 LANGUAGE ENGLISH
LIST of VoP AND
IMPEDANCE
VALUES
START-UP DISPLAY
MAIN MENU
MEASUREMENT DISPLAY SETTINGS MENU
HELP MENU
BATTERY SELECTION
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