SICK Omni CLX490 Series, Operating Instructions Manual

Page: 34 / 158

Chapter 4 Operating Instructions
CLX490 Compact OMNI Scanner
4-6
©
SICK AG · Division Auto Ident · Germany · All rights reserved 8009237/RB47/2007-08-03
Installation
4.3 Mounting and adjusting the device
4.3.1 Mounting the CLX
1. Prepare the base for mounting the bracket as described in Chapter 4.2.2 Required
accessories, Page 4-1 .
2. Place the object containing the bar code within the reading field of the CLX (in the
position at which it is to be read) with the conveyor belt switched off.
3. Allign the CLX reading window in parallel to bar code surface. Consider the positioning
of the CLX in relation to the conveyor direction (see Fig. 4-4, Page 4-4 ).
All of the possible reading angles must be taken into consideration (see Fig. 4-5,
Page 4-4 ).
4. If it is relevant for the evaluation, note the count direction of the reading angle (see
Fig. 4-6, Page 4-5 ).
5. Mount the CLX bracket on the base.
Risk of damage to the device!
The maximum depth of engagement of the two blind hole threads M6 is 7 mm.
Longer screws will damage the device.
¾
Use screws with the correct length.
6. Screw the screws M6 through the bracket into the blind hole threads of the CLX.
7. Tighten the screws slightly.
8. Adjust the CLX as described below.
4.3.2 Adjusting the CLX
The CLX can be adjusted in Percentage Evaluation mode. In this mode, the CLX displays the
quality of the bar code reads that enter the CLX reading field statically (the object is not
moved on the conveyor belt). In the Free-running mode the CLX performs 100 scans and
evaluates the reading quality statistically. It then outputs the reading results every 2 s on the
auxiliary interface.
Note In default setting, the CLX operates in the autofocus mode "Minimum distance“. As a result,
the CLX focuses on the object that is nearest in Percentage Evaluation mode. The view on
the object with the scan line must be unobstructed, i. e. any other objects must not protude
into the autofocus space. If they do so, the autofocus mode "Differential background“ must
be selected. Alternatively a fixed focus position can be set.
The behavior of the "Read Result" LED also indicates the reading quality.
– The LED is extinguished if reading quality is < 30 %
– The LED flashes twice per second if the reading quality is 30 % to 70 %
– The LED flashes five times per second if the reading quality is 70 % to 90 %
– The LED is lit continuously if the reading quality is > 90 %
The scanning frequency in the default setting is 800 Hz.
1. Connect the CLX to the AMV/S60 Connection Module and switch on the power supply
(see Chapter 5.5.3 Connecting the supply voltage, Page 5-13 ).
After it has started, the CLX confirms that the self-test was successfuly and switches to
reading mode ("Device Ready" LED lights up).