References Symbologies278 Touch TD1100SymbologiesDecoding LevelsDecoding Levels are used to configure a bar code symbology decoder to be very aggressive tovery conservative depending on a particular customer’s needs.• Choosing Level 1 results in a very conservative decoder at the expense of not being able toread poorly printed or damaged labels.• Choosing Level 5 results in a very aggressive decoder. This aggressive behavior allowsdecoding of poorly printed and damaged labels at the expense of increasing the likelihoodof decoding errors.• Choosing Level 3, which is the default setting, allows the majority of product labels to bedecoded.There are many factors that determine when to change the decoding level for a particularsymbology. These factors include spots, voids, non-uniform bar/space widths, damaged labels,etc. that may be experienced in some bar code labels. If there are many hard to read or damagedlabels that cannot be decoded using a conservative setting, increase the decoding level to bemore aggressive. If the majority of labels are very good quality labels, or there is a need todecrease the possibility of a decoder error, lower the decoding level to a more conservative level.Set LengthLength Control allows you to select either variable length decoding or fixed length decoding forthe specified symbology.Variable Length: For variable length decoding, a minimum and maximum length may be set.Fixed Length: For fixed length decoding, two different lengths may be set.Set Length 1This feature specifies one of the bar code lengths for a given symbology. Length 1 is theminimum label length if in Variable Length Mode, or the first fixed length if in Fixed LengthMode.Reference the Symbologies section to view the selectable range (number of characters) for thesymbology being set.Follow these instructions to set this feature:1. Determine the desired character length. Pad the number with leading zeroes to yield twodigits. For example: 0 = 00, 5 = 05, 20 = 20, etc.2. Scan the ENTER/EXIT PROGRAMMING MODE bar code to enter ProgrammingMode.3. Scan the “Select Length 1 Setting” for the symbology being set.
