NOYAFA NF-820 User manual

Anti-jamming underground cable detector
VER: V4
NF-820
Your excellent helper in cable test!
ORIGINAL
AUTHENTIC
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ORIGINAL
AUTHENTIC
Your excellent helper in cable test!
INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL

Please read and learn safety instructions before
use or maintain the equipment.
● Never put the equipment under strong sunshine.
● Never put the equipment in the place with much dust,
humidity and high temperature (over 40℃)
● Please use battery according to the specification; otherwise,
it may result in damage to equipment.
● Please never dismount the equipment arbitrarily. The
maintenance and care shall be conducted by professional
personnel.
● Please take out the battery in Transmitter and Receiver if
the equipment is not used for a long time so as to prevent
that the battery liquid is leaked in future.
● Never use the equipment to detect power cord with electricity
(such as power supply circuit of 220V), otherwise, it may
result in damage to equipment and personal injury.
● Never conduct related operation of communication line in
thunderstorm weather so as to prevent lightning stroke and
impact on personal safety.
Contents
Overview….......………………...........................01
Introduction…………………………...................02
1.1 Features & Specification………….................02
1.2 Main application……………………….............02
Product interface and keypad functions.........03
1.1 Transmitter interface instruction……............04
1.2 Receiver interface instruction……….............04
Operating instructions...................................05
1.1 Cable hunting model...................................05
Usage method for Receiver............................06
Other functions..............................................07
1.1 Earphone...................................................07
1.2 Low voltage indicate...................................07
1.3 Power charge ............................................07
Technical parameters.....................................08
Common faults maintain................................09
Caution..........................................................09
Standard packing...........................................10
Diagram of series products.............................12
Your excellent helper in cable test! Your excellent helper in cable test!

Overview Introduction
Tone generator Amplifier probe
1.1 Features & Specification
● Detect cable location in underground or other invisible cable,
the range is 0-2m.
● Signal sensitivity for transmitter and receiver is adjustable.
(0-2m)
● Trace cable without current interference.
● The cable lead can clamp cable with 220V AC to avoid burning
and damage of device.
● Capable trace cable, such as single metal line, 2-core or
multi-core cable.
● Earphone helps work in noisy environment.
● Cable lead and socket can be used at the same time.
● Low battery indicator function.
● Rechargeable Lithium battery.
1.2 Main application
Detecting cable type: power cable, coax cable, telephone cable,
network cable, multi-core metal line, ect.
NF-820 is a new breakthrough, which are anti-jamming cable
detectors for underground, inside-wall or other invisible cable &
pipe. The detection range can be up to 2 meters. Besides, NF-
82 0 is e ve n ca p a bl e of t ra c i ng c ab l e in h ig h vo l t ag e
environment (0~400V). The current or other live devices can't
make influence on it for its anti-jamming function.
It is a practical tool for the engineers, mainly applied in home
decoration, cabling installation and telecommunication etc.
inside-wall, ceiling or other invisible cable. both live cable and
de-energized cable. (≤400V)
NF-820 are mainly used to detect cable location in underground,
Your excellent helper in cable test! Your excellent helper in cable test!
12
CHG

34
Product interface and keypad functions
AUDIO
POWER CHG SCA N
NF-820
CHG Port
High&Lo w Voltag e Wi re Teack er
EM I T TER
SEN
NF-820
POW ER
SEN
RECE I V E R
High& Low Vo lta ge Wire Te ack er
Alligator clip Telephone cable
adaptor
Status
indicator
Charging
ports
Toggle
switch
Sensitivity
Power
Power
indicator
Earphone
Probe
Signal
indicator
Speaker
Tone generator Amplifier probe
Sensitivity
Power
Your excellent helper in cable test! Your excellent helper in cable test!
Power cord
interface
1.1 Transmitter interface instruction
1. Toggle switch to “ON” place, the POWER led will light up to
green , switch to “ OFF” to turn down the device.
2. Adjust the Sensitivity signal button from 1-8, turn to 4 or 5 the
signal will be more stronger to hear the trace voice , but 8 is
the strongest.
5. Press the AUDIO button enter SCAN mode to trace the target
cable , at the same time , SCAN led will light up..
4. Charging Indicator turns red, which means charging mode,
indicator turns green, which means fully charged.
3. Charging port to charge for transmitter when connect with
Micro USB cable, the battery is 1800Amh.
1. Sensitivity adjust signal strength and volume from 1-8.
2. Probe the device will generate “do do do” when probe get
close to targeted cable.
1.2 Receiver interface instruction
3. Long press to turn on or turn off for the POWER button.
4. Earphone can help you identify the target voice when work in
noisy environment.
6. You can charge it when out of power , the charging port on the
right middle side, the battery is 1100Amh.
The indicator will be on when turn on the receiver.
“do do do” will come from the speaker when the probe get
close to targeted cable.
5. Power indicator & Speaker.
CHG
Charging
ports

56
1.1 Scan mode
CAUTION: When you are scanning, you can adjust the sensitivity
button to the best location according to the work place you are.
Red alligator clip
to connect the
color wire.
black alligator
clip to connect
the shielded.
or ground.
Your excellent helper in cable test! Your excellent helper in cable test!
Usage method for Receiver.
operating instructions
CAUTION: This device and operate method also fit Telephone
cable , you can connect the cable into RJ11 port and the steps
keep the same.
Firstly , Toggle the switch to "ON" to trun on the device ,and
press AUDIO button if you enter the SCAN function , the
POWER & SCAN led will light up.
Secondly,use the black alligator clip to connect ground, the red
clip connects any core of the cable.Then adjust the sensitivity
button from 1-8, choose the fittable number.
Thirdly, take the amplifier probe to the other side to detect the
cables after restart , will send out the loudest voice when you
closed the target wire. If can't identify the target cable , you can
adjust the sensitivity constantly for the amplifier probe.
3. Hold the receiver to get close to cables, adjust the sensitivity
to proper degree, you will hear“do do do”. When the probe
touches the target cable, the tone would be loudest and
clear,and more signal indicators will flash.
1. Long press the power button to turn on the device.
2. When the“power” indicator is on, which means the receiver
works well.

78
Other functions Technical parameters
Item
Low battery indicate
Signal transmission format
Signal output level
Signal sensitivity distance
Dimension (L×W×H)
Weight ( battery include)
Emitter
Receiver
Emitter
Receiver
One set
Emitter
Receiver
One set
Emitter
Receiver
Working current Emitter
Receiver
Charging current
≤ 150mA ± 10%
≤ 80mA ±10%
Standard
3.7V lithium battery 1800Amh
≤3.5V LED light flashing
Anti-jamming underground cable detector
21Vp-p
0~2m
Multi-frequency pulse
800mA
0.143kg
0.200kg
252×45×28 mm
0.343kg
262×135×60 mm
152×55×34 mm
Name
Power supply
Your excellent helper in cable test! Your excellent helper in cable test!
Signal transmission distance
＜10km
3.7V lithium battery 1100Amh
Same as Emitter
1.3 Power charging for the Lithium battery
Users need to charge for the battery when it is low. If you don't
operate the device for a long time, you should also charge the
battery regularly.
When charging for the battery, the CHG indicator turns red.If
fully charged,the indicator will turn green. the whole charging
process needs about 8 hours.
Under a loud noise place to work, you can put on the earphone
to avoid interference.
1.2 Low battery indicate
When the battery is lower than 3.5V, the power indicator will
flash,which indicates user to charge. When lower than 3.4V. the
power indicator will flash more rapidly and then the device will
be off automatically.
1.1 Earphone

910
Common faults maintain
CAUTION:
1. NF-820 can test low voltage
and also can detect high voltage which with AC voltage cable.
2. When use NF-820 to detect live, make sure the insulation of
the alligator clip is good to avoid electric shock.
3. Keep the device in a dry environment.
Standard packing
Faults Possible reasons
Start up, power
LED not bright
1.LED power light was
broken;
2.Battery low voltage;
3.PCB problem for the
emitter;
1.Check the other functions;
2.Connect the power charging
or replace battery;
3.Contact us directly;
Can open the
device ,
but can't scan
1. sensitivity not adjust
the best place;
2.PCB problem for the
emitter;
To adjust the sensitivity;
Cannot adjust
voice
PCB problem for the
emitter
Contact our factory
Earphone
cannot work
1. Earphone was
broken;
2. PCB problem for the
emitter
Earphone replaced;
Maintenance methods
Tone generator
Name Number
x 1ps
Amplifier probe x 1ps
3.7v lithium battery x 2pcs
5V 1A power charging adaptor
x 1ps
USB charging line x 1ps
Earphone x 1ps
User manal x 1ps
Carry case x 1ps
Color box x 1ps
certificate of quality x 1ps
Your excellent helper in cable test! Your excellent helper in cable test!