Leuze electronic BPS 34 Operating Instructions Manual page 32

Procedure:
• Check the surface. It must be flat, without warping, free of grease and dust, and dry.
• Define a reference edge (e.g. metal edge of the busbar)
• Remove the backing and affix the BCB along the reference edge tension free.
Secure the bar code tape to the mounting surface by pressing down with the palm of
your hand. When affixing, make certain that the BCB is free of folds and creases and
that no air pockets form.
• Never pull the BCB. Because this is a plastic tape, forceful pulling may stretch it. This
results in a distortion of the measurement units on the tape. While the BPS 34 can
still perform the position calculation, the accuracy in this case is no longer ensured. If
the values are taught using a teach-in process, distortions are irrelevant.
• Expansion joints with widths up to several millimeters can simply be covered with the
bar code tape. The tape must not be interrupted at this spot.
• Protruding screw heads can simply be taped over. Cut out the bar code which covers
the screw head at the cut marks.
• If the application dictates the necessity of a gap, the tape is to be affixed over this gap
and the affected cut marks cut out. If the gap is small enough that the scanning beam
can detect the label to the left or to the right of the gap, measurement values are
delivered without interruption. If the scanning beam cannot completely scan any label,
the BPS 34 returns the value 0. As soon as the BPS 34 can again scan a complete
label, it calculates the next position value.
• The maximum gap between two bar code positions without affecting the measure-
ment value is 40mm.
Note!
If the bar code tape was damaged, e.g. by falling parts, a repair kit can be downloaded from
the Internet (www.leuze.com).
Attention!
Bar code tapes with different value ranges may not directly follow one another. If the value
ranges are different, the gap between the two BCBs must be greater than the detection
range of the scanning beam or control bar codes must be used (for further information, see
also Chapter 6.4 on Page 33).
Note!
When working with the BCB in cold warehouses, it should be ensured that the BCB be
affixed before the warehouse is cooled. However, if it should be necessary to work with the
BCB at temperatures outside of the specified processing temperature, please make sure
that the bonding surface as well as the BCB are at processing temperature.
Note!
When working with BCB in curves, the BCB should only be partially cut at the cut mark and
affixed along the curve like a fan; it must also be ensured that the BCB is affixed without ten-
sion (see Figure 6.4).
Leuze electronic BPS 34
Bar code tape
31