NOTE
Disposal of batteries, electric and electronic devices
•
According to international directives, batteries, accumulators and electrical or
electronic devices must not be disposed of in general waste.
•
The owner is obliged by law to return this devices at the end of their life to the
respective public collection points.
•
WEEE: This symbol on the product, its package or in this document,
indicates that a product is subject to these regulations.
10 Maintenance
SICK sensors are maintenance-free.
We recommend doing the following regularly:
•
Clean the external lens surfaces
•
Check the screw connections and plug-in connections
No modifications may be made to devices.
Subject to change without notice. Specified product properties and technical data are
not written guarantees.
11 Technical specifications
WTB4FT DoubleLine
Recommended sensing range for the best performance 40 mm … 120 mm
Sensing range max. 7 mm … 120 mm (Typ)
1)
Light spot diameter/distance 2 x (2 x 28 mm) (50 mm) (Typ) 2 x (9
x 50 mm) (100 mm) (Typ)
Supply voltage U
B
DC 10 ... 30 V
2)
Ripple ≤ 5 Vss
Output current I
max.
≤ 100 mA
Current consumption 25 mA
Switching frequency 500 Hz
3)
Max. response time 1000 µs
4)
Enclosure rating IP66, IP67
Protection class III
5)
Circuit protection A, B, D
6)
Ambient operating temperature –40 °C ... +60 °C
1)
Object with 90 % remission (based on standard white DIN 5033)
2)
Limit values. U
B
connections reverse-polarity protected. Residual ripple max 5 V
PP
3)
With light / dark ratio 1:1
4)
Signal transit time with resistive load
5)
Reference voltage DC 50 V
6)
A = U
B
-connections reverse polarity protected
B = inputs and output reverse-polarity protected
D = outputs overcurrent and short-circuit protected
10 MAINTENANCE
12
8025300 / 2020-11-13 | SICK
Subject to change without notice