Photoelectric sensors | W4 | WTB4ST-31312120ZZZ | Sensing range min. / max.: 0 mm / 150 mm | Functional principle: Photoelectric proximity sensor | Functional principle detail: Background suppression, DoubleLine | Switching output: Push-pull: PNP/NPN | Switching mode: Dark switching | Connection type: Cable with connector M8, 3-pin, 110 mm | Light source: PinPoint LED | Type of light: Visible red light | Housing material: VISTAL® | Adjustment: Teach-in button, Potentiometer, Teach-Turn adjustment | Housing: Rectangular
Functional principle
Photoelectric proximity sensor
Functional principle detail
Background suppression, DoubleLine
Sensing range min.
0 mm
Sensing range max.
150 mm
Adjustable switching threshold for background suppression
10 mm ... 150 mm
Reference object
Object with 90% remission factor (complies with standard white according to DIN 5033)
Minimum distance between set sensing range and background (black 6% / white 90%)
0.8 mm, At 70 mm distance
Recommended sensing range for the best performance
50 mm ... 90 mm
Light source
PinPoint LED
Type of light
Visible red light
Shape of light spot
Line-shaped, two parallel line-shaped light spots
Light spot size (distance)
2.5 mm x 16 mm (50 mm)
Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle)
< +/- 1.5° (at TU= +23 °C)
Normative reference
EN 62471:2008-09 | IEC 62471:2006, modified
LED risk group marking
Free group
Wave length
635 nm
Average service life
100,000 h at Ta= +25 °C
Teach-Turn adjustment
BluePilotFor setting the sensing range
LED blue
BluePilot: sensing range indicator
LED green
Operating indicatorStatic on: power on
LED yellow
Status of received light beamStatic on: object presentStatic off: object not present
Special applications
Detecting flat objects, Detecting objects wrapped in film, Detecting perforated objects, Detecting uneven, shiny objects
MTTFD
1,399 years
DCavg
0%
Supply voltage UB
10 V DC ... 30 V DC1)
Ripple
≤ 5 Vpp
Usage category
DC-12 (According to EN 60947-5-2)DC-13 (According to EN 60947-5-2)
Current consumption
≤ 20 mA, without load. At UB= 24 V
Protection class
III
Number
1
Type
Push-pull: PNP/NPN
Switching mode
Dark switching
Signal voltage PNP HIGH/LOW
Approx. UB-2.5 V / 0 V
Signal voltage NPN HIGH/LOW
Approx. UB/ < 2.5 V
Output current Imax.
≤ 100 mA
Circuit protection outputs
Reverse polarity protected
Response time
≤ 1,000 µs
Repeatability (response time)
240 µs
Switching frequency
500 Hz
Function of pin 4/black (BK)
Digital output, dark switching, object present → output Ǭ LOW2)
Design detail
Slim
Dimensions (W x H x D)
12.1 mm x 41.9 mm x 18.6 mm
Connection
Cable with connector M8, 3-pin, 110 mm
Deep-freeze property
Do not bend below 0 °C
Conductor size
0.14 mm²
Cable diameter
Ø 3.4 mm
Length of cable (L)
77 mm
Housing
Plastic, VISTAL®
Front screen
Plastic, PMMA
Cable
Plastic, PVC
Male connector
Plastic, VISTAL®
Maximum tightening torque of the fixing screws
0.4 Nm
Enclosure rating
IP66 (EN 60529)IP67 (EN 60529)
Ambient operating temperature
–40 °C ... +60 °C
Ambient temperature, storage
–40 °C ... +75 °C
Typ. Ambient light immunity
Artificial light: ≤ 50,000 lxSunlight: ≤ 50,000 lx
Shock resistance
30 g, 11 ms (3 positive and 3 negative shocks along X, Y, Z axes, 18 total shocks (EN60068-2-27))
Vibration resistance
10 Hz ... 1,000 Hz (Amplitude 1 mm, 3 x 30 min (EN60068-2-6))
Air humidity
35 % ... 95 %, relative humidity (no condensation)
Electromagnetic compatibility (EMC)
EN 60947-5-2
Resistance to cleaning agent
ECOLAB
UL File No.
NRKH.E181493 & NRKH7.E181493
EU declaration of conformity
✔
UK declaration of conformity
✔
ACMA declaration of conformity
✔
Moroccan declaration of conformity
✔
China RoHS
✔
cULus certificate
✔
ECLASS 5.1.4
27270903
ECLASS 6.0
27270903
ECLASS 7.0
27270903
ECLASS 8.0
27270903
ECLASS 9.0
27270903
ECLASS 10.0
27270903
ECLASS 11.0
27270903
ECLASS 12.0
27270903
ECLASS 13.0
27270903
ECLASS 14.0
27270903
ECLASS 15.0
27270903
ETIM 6.0
EC002719
ETIM 7.0
EC002719
ETIM 8.0
EC002719
ETIM 9.0
EC002719
ETIM 10.0
EC002719
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