Scanning distance of barcode scanner
Because different types of barcode scanners have different depth of field, then Scanning distances vary, so the depth of field of a barcode scanner must be clearly defined.
The working distance of the red light barcode scanner is limited to 0-30cm, but the latest red light barcode scanner has effectively extended the depth of field to 60cm;
Laser barcode scanner The depth of field is the longest, between 20-100cm, and some special laser guns are specially designed to scan large barcodes, and the depth of field can reach several feet. The difference in depth of field is reflected in the price of the barcode scanner.
Reasons for the low sensitivity of the scanner
The scanner has a low sensitivity to scan barcodes, and it often happens that the scanner works when it scans The situation is mainly due to the following reasons:
1. Problems with the scanning gun itself
The scanning head is dirty, or the machine itself has problems. In this case, you can only clean it yourself and try again, or send it back to the manufacturer to check the scanner for repair.
2. Problems with barcodes
If it is self-encoding, it should be encoded with CODE1028, the recognition rate is higher than that of CODE93, and the people currently using Also more. If you can’t recognize it after using CODE128, it may be that your barcode is too small. It is recommended that the minimum size should be 35X10mm (length X width). If it is too small, the barcodes will be too dense and cannot be recognized.
How to effectively enhance the sensitivity of the barcode scanner
When we use the scanner, we touch the barcode scanner to the surface of the label. Generally speaking, the retail industry Contact or close-range scanning is used in , office, and factory applications, while long-range scanning is typically used in warehouse, distribution, and transportation applications.
