NOYAFA NF-820 - Other functions; Earphone; Low battery indicate; Power charging for the Lithium battery

7
8
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