KEYENCE BL-600 Series - Manual (Page 104)

Chapter 6 Functions for Reading Operation
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6
6.4 Test Mode
Test mode can be used for the bar code reading test. The BL-600 Series offers
three types of test mode.
Note: The BL-600 Series continues laser emission during test mode. This can
shorten the service life of the laser. Only select test mode when you need to
perform a reading test.
6.4.1 Reading rate check mode
The reading rate check mode is used to measure how many times the BL-600
Series can decode the scanned data while scanning a bar code 100 times.
This mode is useful for the following cases:
● Adjusting the mounting distance and angle
Adjust the mounting distance and angle so that the highest reading rate is
obtained.
● Verifying the reading reliability of the bar code to be used
A high reading rate shows that the printing quality of the bar code is high.
Note: The reading rate check should only be performed for a stationary bar code.
■ Starting method
There are four methods to start the reading rate check mode. Select one of the
following for your convenience.
• Press the TEST switch of the BL-600 Series.
• Use the [[Monitor]] screen of the setup software. ➮ See page 62.
• Use the bar code display interface BL-V35E. ➮ See the BL-V35E User’s Manual.
■ Operation
The following instruction uses the TEST switch to start/quit the reading rate check.
All other operations are the same for the other starting methods.
1. Set the mounting distance and angle of the BL-600 Series. ➮ See page 75.
Note : Do not mount the BL-600 Series so that the laser beam is applied to bar
codes at a right angle (
±10°). Otherwise, the specular reflections may cause
unstable reading or reading errors. ➮ See page 151.
15 °
Reading distance
Reading distance
BL-600/601: 120 mm
BL-600HA/601HA: 90 mm
17 °
Reading distance
Reading distance
BL-650HA/651HA: 65 mm
Within ±10°
Within ±10°
17 °
BL-600/601/600HA/601HA BL-650HA/651HA
BL-600/601/600HA/601HA BL-650HA/651HA