Instruction Manual
Bluetooth Barcode Scanner
Instruction Manual
Buzzer
Sound mode Description
LED Indicator
Color Description
HM-3050SR
Appearance
①Button ②Bluetooth Indicator ③Scan Window
Power on/off
Power on: In the power-off status, press and hold the button
for 2 seconds, it will make a long beep and vibration that
means the scanner is powered on.
▲
Power off: In the power-on status, long press the button for
10 seconds,it will make a long beep and vibration that means
the scanner is powered off.
▲
Note: the scanner will be shut down automatically if it is not
used for more than 10 minutes.
▲
Maintenance
The reading window must be kept clean,and the supplier is
exempt from warranty liability for damage caused by improper
maintenance.
Avoid hard and rough objects to scratch the reading window.
Remove the stains from window with a brush.
Please use a soft cloth to clean the window, such as glasses cloth.
Do not spray any liquid on the window.
Do not use any cleanner other than cleaning water.
▲ ▲ ▲ ▲ ▲ ▲
Bluetooth Connection
USB Connection
The scanner is powered on by pressing the button, and be con-
nected to the host devices through Bluetooth. The blue light
indicates that it is connected and can be used normally.
Interface Setting
（2）USB virtual Serial Port
（3）Bluetooth
Red light is always on
Red light flashes
Green light is always on
Blue light is always on
Yellow light is always on
Being Charged
Low battery
Full charged,power on
Connect to Bluetooth
Offline storage
Long beep: 1 time+ Vibration press and hold to turn on/off the scanner
Short beep: 1 time Connect to Bluetooth
Long beep: 3 times
Disconnect Bluetooth and scan
barcode without Bluetooth
Short beep: 1 time+Vibration
Scan barcode with Bluetooth
④Micro-USB Port
The scanner can communicate with the host by RS-232 serial port
or USB port. The user can switch to the corresponding interface by
replacing the cable and scanning the corresponding barcode below.
（1）USB virtual keyboard
1) Connect the device interface (Micro-USB interface) of USB to scanner;
2) Connect the host interface (USB interface) of USB to the host and
switch to the keyboard mode.
Note:USB mode is applicable to firmware upgrade and other debugging
modes.
①
②
③
④
⑤
⑤Annular Power Indicator
⑥Temporary Storage Function Indicator
⑥
FCC Warning
This device complies with part 15 of the FCC Rules.
Opera�on is subject to the following two condi�ons:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including int-
erference that may cause undesired opera�on.
NOTE:
This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protec�on against harmful interference in
a residen�al installa�on.
This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instruc�ons, may
cause harmful interference to radio communica�ons.
However, there is no guarantee that interference will not occur in a par�cular
installa�on. If this equipment does cause harmful interference to radio or
television recep�on, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separa�on between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
- Consult the dealer or an experienced radio/ TV technician for help.
Warning: Changes or modifica�ons to this unit not expressly approved by the
part responsible for compliance could void the user’s authority to operate the
equipment.