User's Manual

User Manual
XC2907-A Portable Reader
32
2. Check whether the PC machine connects to the handset through the USB
cable. Provided that there is a connection, please hold on for a few minutes;
Maybe the battery level is too low, and the battery needs to be charged for a
while before displaying the electricity.
● Can't read the tag
Please conrm that whether the electronic tag is in the eective range of the
reader;
Please conrm whether the space RF signal interference problem exists.
● Avoid writing tag
Please conrm that whether the electronic tag is in the eective range of the
reader;
Please conrm whether the data eld of electronic tag is locked;
Please conrm whether the parameters for instruction writing are congured
correctly;
Please conrm whether the space RF signal interference problem exists.
● Why is the distance of written tag closer than the distance of read tag?
The RFID technology features decide the energy needed to write tag is far larger
than that needed to read tag, so the distance of written tag and the success rate
are lower than that of read tag.
● Why do dierent tags have large reading dierence?
Due to the RFID technology features, dierent tag chips and their package
medium cause tags have completely dierent sensitivity to reader. So the
operation distance and success rate are completely dierent.
For the problems that users can't solve voluntarily, please contact Invengo
Company to negotiate repair matters. Refer to the after-sales service information
for details.
9.3 RF communication optimization
Under normal circumstances, the system performance of equipment adopting
radio technology for communication is very sensitive to signal interference
and attenuation. Some prompts are oered to solve the RF communication
optimization problems between XC2907-A portable reader and electronic tag.
9. Daily maintenance and troubleshooting