SICK W4F, Operating Instructions Manual

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9 Maintenance
This SICK sensor is maintenance-free.
We do, however, recommend that the following activities are undertaken regularly:
• Clean the optical interfaces using a plastic cleaner, do not use acetone or methy‐
lated spirits.
• Check the fittings and plug connectors
No modifications may be made to devices.
Subject to change without notice. Specified product properties and technical data are
not written guarantees.
10 Technical specifications
WLF4F
Sensing range (with reflector PL80A) 0.4 m ... 7 m
Sensing range max. (with reflector PL80A) 0.4 m ... 10 m (Typ)
Light spot size / distance Ø 40 mm (1.0 m) (Typ)
Supply voltage U
B
DC 10 ... 30 V
1)
Ripple ≤ 5 VSS
Output current I
max.
≤ 100 mA
Current consumption 25 mA
Switching frequency 1000 Hz 2)
Max. response time ≤ 500 μs 3)
Enclosure rating IP66, IP67
Protection class III
Circuit protection A, B, C, D
4)
Ambient temperature, operation –40 °C ... +60 °C
1) Limit values
Reverse polarity protected U
B
connections
Residual ripple max. 5 V
ss
2) With light / dark ratio 1:1
3) Signal transit time with resistive load
4) A = U
B
-connections reverse polarity protected
B = inputs and output reverse-polarity protected
C = Interference suppression
D = outputs overcurrent and short-circuit protected
MAINTENANCE
9
8027380.1DTW /2022-02-14 | SICK O P E R A T I N G I N S T R U C T I O N S | WLF4F 21
Subject to change without notice
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