Installation
VC3700 User’s Manual
Valco Cincinnati
26
UV Sensor Sensitivity Setting
When the power is switched on, the green LED illuminates (ON). The yellow LED illuminates only when it detects
a luminescent object (for example, UV liquid added to glue).
For objects to be detected against a background without luminescence, follow these steps:
1. Turn the sensitivity adjuster to maximum (clockwise). The luminescence sensor reacts to the luminescent glow
and the output is switched.
For objects to be detected against a background with luminescence, follow these steps:
1. Turn the sensitivity adjuster to maximum (clockwise).
2. Position the background (with lower luminescence) in the light spot of the scanner.
3. Turn the sensitivity adjuster counterclockwise until the status indicator just switches off.
4. Note the position.
5. Position the luminescent glue in the light spot of the scanner.
6. Turn the sensitivity adjuster counterclockwise until the status indicator just switches off.
7. Note the position.
8. Reset the sensitivity adjuster to approximately halfway between the two positions.
The UV signal can be viewed using a piece of UV-sensitive copy paper. The UV signal emits several dot signals in
a line. These dots should be slightly out of focus and perpendicular to the glue line. A right-angle lens is available to
rotate the UV signal so it is perpendicular to the glue line.
Lens Replacement
The lens is screwed in and can be replaced by another lens. Scanning distances of 10, 20, 50, 90mm (.39, .78, 1.97,
and 3.54 inches, respectively) are available. Standard lens should be 20mm. The luminescence intensitivity might be
too weak if a scanning distance of more than 20 mm is used.
Maintenance
UV-3 sensors do not require any maintenance. However, periodically cleaning the optical lens and checking the
connections is recommended.
Product Scanners for Glue Inspection
Mechanical Installation of Scanner
The product scanners for glue inspection must be located precisely opposite the glue sensors. The sensor must see
the same edge as the scanner used in gluing.
To install the glue sensor, follow these steps:
1. Set the scanner 1.5 inches (38mm) above the product.
Note!
The scanner must be able to see through open areas on the parent machine with no obstructions. Valco’s
standard scanner has a sensitivity adjustment on the top of the scanner.
Summary of Contents for VC3500
Page 1: ...VC3500 User s Manual Software Version 3 X Manual Number MCO35 Manual Release Date July 1999 ...
Page 19: ...Installation VC3500 User s Manual Valco Cincinnati 16 Figure 8 Internal Connections Diagram ...
Page 88: ...VC3700 User s Manual Software Version 3 X Manual Number MCO34 Manual Release Date July 1999 ...
Page 181: ...VC3500 VC3700 Troubleshooting Manual Manual Number MC048 Release Date May 1999 ...
Page 185: ...VC3500 VC3700 Troubleshooting Manual Valco Cincinnati Page 1 System Level Documents ...