KEYENCE BL-600 Series User Manual
Page 105
95
Chapter 6 Functions for Reading Operation
6
2. Start the test mode.
1) Press the TEST switch for 3 seconds.
2) When one STABILITY LED illuminates, release the TEST switch.
The BL-600 Series continues laser emission.
Do not look directly at the laser beam. This may result in serious eye injury.
The laser beam is not harmful to the skin; however, do not intentionally
direct the laser beam at the human body.
3. Read the bar code.
The BL-600 Series displays the STABILITY LEDs as shown in the following
table depending on the “Reading rate”, which shows the number of times it can
decode the scanned data while scanning a bar code 100 times. While checking
the display, adjust the mounting distance and angle so that the reading rate
reaches its highest level.
*
ON/NG LED turns ON but OK/NG output does not turn ON.
Note1: The higher the reading rate indicated, the more accurately and reliably the
bar code is read. However, this does not mean that the reading is only possible
with a reading rate of 100%. For example, if the reading rate is displayed as 20%,
20 reads were acceptable during the 100 scans. The read operation is not affected
if the scanning time for the bar code is set long enough.
Note2: If a raster-scanning model (BL-601/601HA/651HA) is used for a bar code
with a short height, some laser beams will not be applied to the bar code, resulting
in a low reading rate. For example, if only 4 out of the 8 laser beams of the BL-600
Series can scan the bar code, the highest reading rate obtained will be 50%.
However, this problem can also be solved if the scanning time for the bar code is
set long enough.
LASER
ON
OK/NG
TIMING
TEST
LASER ON
OK/NG
TIMING
TEST
BL-600
Press the TEST switch
for 3 seconds.
WARNING
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