Fnirsi FNB48P Manual page 5

1.Versions and Updates
This product has many functions with frequent software and hardware updates, so, please
be aware that the manual may be updated at any time. Please get the latest information on
the official website.
2.Overview
The FNB48USB tester is a high-reliability, high-safety USB voltage and current detection
meter and a mobile communication terminal fast charging trigger. It has a 1.77-inch
TFTLCD display and integrated USB-A, Micro-USB, Type-C interfaces. Uses a dedicated
16-bit ADC, PD protocol physical chip. It can be used to measure the power supply or power
consumption of products such as USB interfaces, mobile phone chargers, U disks, etc.; it
can be used to measure mobile phone charging power and mobile power input and output
conditions; it can be used for charger fast charging protocol testing.
This instruction manual includes relevant safety information, warning tips and solutions to
common abnormal situations. Please read the relevant content carefully and strictly abide
by all warnings and precautions.
3.Safety Precautions
●Do not connect the monitoring interface to a power supply exceeding 24V.
●Do not connect the PC connection port to a power source exceeding 16V.
●Only one pair of monitoring interfaces (one input port, one output port) can work at the
same time. When there is a pair of monitoring interfaces working, it is forbidden to
connect to the equipment on other monitoring interfaces. (Except the PC connection
port, the PC port can be connected to an external power supply.)
●When using the fast charge trigger module, please do not connect equipment that
cannot withstand high voltage to any monitoring interface.
●After using the PD trigger/monitor/conversion/read E-Marker cable function, please turn
the PD communication switch in the lower right corner back to the OFF position.
●When working at high power,the temperature of the instrument rises.Please be careful to
prevent burns.
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