XHSB505B Cable Identifier — Cable Fault Locator产品特性Accurate and reliable identification.
A large identification jaw suitable for various cables.
Extremely simple operation.
Clear and intuitive indication.
Main unit and accessories are portable and neat.
The receiver's received-signal strength is adjustable.
Both live and de-energized cables can be tested.
Small and portable, light in weight.
The transmitter mainly generates a special pulse signal, which is
applied through a connecting line to the cable to be identified.
According to the principle of electromagnetic induction, an induced
signal in accordance with the transmitted signal is produced along
the cable. On site, a high-sensitivity receiving clamp together
with the handheld receiver is used to detect all the cables, and
according to the indication of the receiver's meter, the cable
carrying the applied signal (that is, the de-energized cable to be
identified) can be found accurately.
Live cable detectionThe transmitter generates the special pulse signal, which is
applied through the dedicated transmitting clamp at one point of
the live cable to be identified. According to the principle of
electromagnetic induction, an induced signal in accordance with the
transmitted signal is produced along the cable; on site the
high-sensitivity receiving clamp and handheld receiver are used to
detect all the cables, and according to the receiver's indication
the cable carrying the applied signal (that is, the live cable to
be identified) can be found accurately.
Recommended Users and ApplicationsThis instrument is dedicated to cable identification — that is,
establishing which one among many cables is the target — rather
than to fault location. It works on both live and de-energized
cables and is especially suited to:
1. Cable construction and installation site teamsFor quickly confirming "which cable is the one we are looking for"
during laying, relocation, maintenance and fault handling, using
either the direct-connection method or the coupling method.
2. Teams working in cable trenches and tunnelsFor identifying the target cable among many cables of the same
specification laid in dense trenches and long tunnels, where the
meter-needle swing direction gives an intuitive and reliable
judgement.
3. Cable maintenance and fault-handling crewsFor identifying cables before the mandatory pre-construction spike
test, and for identifying a live cable without performing any
operation on the cable under test (coupling method).
Technical Parameters| Item | Specification |
|---|
| Identification method | Judged by the meter-needle swing direction |
| Jaw opening | Transmitting clamp: Φ125mm; receiving clamp: Φ200mm |
| Output voltage | Gear I (direct-connection method): 150V; Gear II (coupling method):
250V |
| Test range | Direct-connection method: 0Ω–1kΩ; coupling method: 0Ω–50Ω |
| Pulse current | 0–10A |
| Pulse period | 2.75s per cycle |
| Power supply | Transmitter: 12VDC lithium battery; handheld receiver: size-5 (AA)
batteries |
The instrument consists of the transmitter, the transmitting clamp,
the receiving clamp and the handheld receiver.
Transmitter panel — grounding terminal: the safety grounding
terminal of the equipment; output positive: transmitter output
positive, connected to the red output line; output negative:
transmitter output negative, connected to the black output line;
charging: DC12V charging port, connect a 12V charger to start
charging; power switch: turns the working power on/off; gear
switch: "I" for de-energized cable identification and "II" for live
cable identification; battery indicator: shows the battery level in
real time when the built-in battery is working; ammeter: displays
the instantaneous average value of the output current.
Handheld receiver — an adjustment knob adjusts the received-signal
strength (clockwise to increase, counter-clockwise to decrease; it
also has a switch function). A BNC connector on the lower side is
used to connect the receiving clamp to receive the signal.
Wiring method 1: connect the transmitter's red test lead to the
cable core (one phase is enough) and the black test lead to ground;
connect the far end of that phase to the earth (the cable shielding
layer and armour are not grounded).
Wiring method 2: connect the red test lead to the cable core (one
phase is enough); connect the black test lead to the copper
shielding or cable armour; connect the far end of that phase to the
copper shielding or cable armour; and check the grounding state of
the copper shielding or armour. Identifying a cable is affected by
the grounding condition of the grounding system and by whether the
cable shielding or armour is intact, so methods 1 and 2 give the
most ideal results.
If the resistance of the grounding loop of the grounding system is
too large or unreliable, the transmitted signal may fail to load or
may cancel out and the identification result will be poor; in that
case adjust the wiring and use method 1 or method 2.
Operating steps
1.Turn on the transmitter's power switch and set the gear switch to
"I"; the power light flashes three times and the ammeter needle
also swings three times at the same frequency, outputting the pulse
signal cyclically.
2.Connect the receiver to the receiving clamp and clamp the receiving
clamp onto the cable under test.
3.Note the arrow direction of the receiving clamp (the arrow points
to the far end), otherwise the needle swings in the opposite
direction.
4.Rotate the receiver's adjustment knob clockwise; when a "beep" is
heard and the indicator light comes on, the receiver is switched
on. Then set the received-signal strength to a suitable level. At
this time only the cable carrying the signal receives the
same-direction continuous three characteristic signals; the signal
swing frequency matches the transmitter frequency and a
"beep-beep-beep" sound is emitted.
No operation at all is needed on the cable under test — simply
clamp the transmitting clamp onto the cable.
Both ends of the cable sheath must be well grounded, otherwise the
coupling current decreases as the grounding resistance increases.
If both ends of the sheath are not grounded, or the sheath is
broken in the middle, the coupling method cannot be used.
When the transmitting clamp is clamped onto the cable, the arrow on
the clamp must point to the far end of the cable.
The receiving clamp and the transmitting clamp must be kept at
least 2m apart.
操作步骤
1.Connect the transmitter output to the transmitting clamp and clamp
it onto a suitable position of the live cable to be identified,
with the clamp arrow pointing to the cable's far end.
2.Turn on the transmitter power switch and select gear "II"; the
power light flashes three times and the ammeter needle swings three
times at the same frequency, outputting the pulse signal
cyclically.
3.Connect the receiving clamp to the receiver and clamp it onto the
cable under test.
4.Note that the receiving-clamp arrow points to the cable's far end,
otherwise the needle swings oppositely.
5.Rotate the receiver's adjustment knob clockwise; when a "beep" is
heard and the indicator light comes on, the receiver is switched
on. Set the received-signal strength to a suitable level; only the
cable carrying the signal then receives a signal whose swing
frequency matches the transmitter's output switching frequency, and
a "beep-beep-beep" sound is emitted.
6.If the target cable cannot be identified with the coupling method,
it is recommended to use the direct-connection method.
During testing, the receiver's received-signal strength must be
adjusted suitably — neither too large nor too small.
After the cable to be tested is identified, a spike test must be
carried out before construction, to ensure safety!
When the receiving clamp is clamped onto the cable under test, make
sure the jaws make good contact; dust on the jaws, gaps in the
contact or a loose fit will all affect signal reception.
If the needle swing is not obvious on site, check whether the
receiving clamp has good contact.
When identifying a live cable, if the interference is so severe
that the receiving clamp becomes magnetically saturated and cannot
receive the signal, it is recommended to use the de-energized
method instead.
The instrument can be directly short-circuited for testing.
When the receiver needle-swing frequency does not match the
transmitter, or the swing amplitude is too small, the received
signal is too weak — rotate the adjustment knob clockwise to
increase the received-signal strength.
When the receiver needle swings irregularly or not at all, the
interference signal is too strong, or the cable under test is not
the target cable.
Read the manual in detail and observe the relevant precautions. The
instrument can be used indoors and outdoors, but must avoid rain,
corrosive gases, heavy dust and high-temperature places. The
operator should have general knowledge of electrical equipment or
instruments. This is a high-precision instrument and should be
protected from strong vibration. Repair, care and adjustment should
be carried out by professionals. Charge and maintain the
transmitter once every 2 months to prevent battery damage. The
receiver's received-signal strength should be adjusted at the
starting end before testing (neither too large nor too small) and
must not be adjusted during the test.
Q1. What is the XHSB505B Cable Identifier used for?It identifies which cable is the target one among many cables
during power-cable laying, relocation, maintenance and fault
handling — especially in cable trenches with many cables of the
same specification. It can identify both live and de-energized
cables.
Q2. What is the difference between the direct-connection method and
the coupling method?The direct-connection method is for de-energized cables: the
transmitter output is connected to the cable core (or to the copper
shielding/armour), with test range 0Ω–1kΩ and gear I (150V). The
coupling method is for live cables: the transmitting clamp is
clamped onto the cable with no handling of the cable, with test
range 0Ω–50Ω and gear II (250V); both sheath ends must be well
grounded.
Q3. How is the identification result judged?By the direction of the meter-needle swing: only the cable carrying
the signal receives the same-direction continuous three
characteristic signals, the swing frequency matches the
transmitter, and a "beep-beep-beep" sound is emitted. The
receiving-clamp (and transmitting-clamp) arrow must point to the
cable's far end, otherwise the needle swings in the opposite
direction.
Q4. What are the main technical parameters?Identification by meter-needle swing direction; transmitting clamp
jaw Φ125mm and receiving clamp jaw Φ200mm; output voltage 150V
(gear I) and 250V (gear II); test range 0Ω–1kΩ (direct) and 0Ω–50Ω
(coupling); pulse current 0–10A; pulse period 2.75s per cycle;
power supply 12VDC lithium battery (transmitter) and size-5 (AA)
batteries (handheld receiver).
Q5. What is included in the package, and what should be noted for
safety?The package includes 1 transmitter, 1 receiver, 1 charger, 1 red
output line, 1 black output line, 1 transmitting clamp, 1 receiving
clamp and 2 size-5 (AA) batteries. For safety, after the cable to
be tested is identified a spike test must be carried out before
construction; when identifying a live cable, both ends of the
sheath must be well grounded and the receiving and transmitting
clamps must be kept at least 2m apart.
