WP04PAT80 Print Mark Reader

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These sensors have been specially designed to recognize print marks. They have a very small spot and use a white light LED with long service life. Only one sensor is required for the recognition of all color combinations, as well as the difference in brightness between print marks and the background.

This product has been discontinued, BUT CAN STILL BE ORDERED. Click here to access the innovative successor.

Features at a Glance

Digital read-out of gray-scale values via the RS-232 interface
Very high contrast resolution
Very small light spot: 1,4 × 4 mm
Teach-in, dynamic teach-in, external teach-in, RS-232 interface

Technical data

Optical Data
Working Range	30 ... 40 mm
Working Distance	35 mm
Resolution (Gray Scale)	100
Switching Hysteresis	< 1 %
Light Source	White Light
Wavelength	400 ... 700 nm
Service Life (T = +25 °C)	100,000 h
Max. Ambient Light	10,000 Lux
Light Spot Diameter	1.4 × 4 mm

Electrical Data
Supply Voltage	10 ... 30 V
Current Consumption (Ub = 24 V)	< 50 mA
Switching Frequency	25 kHz
Response Time	20 µs
On-/Off-Delay	0 ... 100 ms
Temperature Drift	< 1 %
Temperature Range	-25 ... 60 °C
Number of Switching Outputs	2
Switching Output Voltage Drop	1.5 V
Switching Output/Switching Current	200 mA
Short Circuit Protection	yes
Reverse Polarity Protection	yes
Lockable	yes
Teach Mode	ZT, DT, TP
Interface	RS-232
Baud Rate	38,400 Bd
Number of Digital Inputs	2
Protection Class	III