MQ-W
SERIES
Triple Beam Trigonometric
Area Reflective Photoelectric Sensors
Very accurate detection by triple beam triangulation sensing method in a compact package.
Environmental resistance
Immersion protected construction
(equivalent to IEC IP67)
High speed detection: Max. 2 ms
Light-ON/Dark-ON output is wire
selectable.
Operating voltage of 12 to 24 V DC
Adjuster and Indicators
Distance adjustment dial
Adjustment
indicator LED
(Comply with EMC directive MQ-W-EM type only)
* Original
Sensor
MQ-W3 type
MW-W20 type
Distance adjustment dial
Operation
Indicator LED
Adjustment
indicator LED
FEATURES
Accurate detection regardless of
color, material, or shape of objects
Area reflective type sensor can detect
white or black object at the same dis-
tance. In case of diffuse reflective type,
it is difficult to detect objects of various
color with the same sensitivity setting.
MQ-W area reflective type sensor is
useful for such a case.
No-miss operation regardless of
back-grounds
Area reflective type sensor does not
detect objects beyond the set range.
Resistant to lens surface soiling
Area reflective type sensor detects the
distance by the angle, not the intensity
of received light. Even if the lens sur-
face is soiled by dust or any powdery
material, there is a little variation of
sensing range.
MQ-W70 type
Operation
Indicator LED
SENSING RANGES
Sensing range (m
ft.)
0.03
.098
MQ-W3 types
MQ-W20 types
MQ-W70 types
0.2
.656
0.7
2.297
PRODUCT TYPE
Detection method
Range
Rated operating voltage Control output
NPN
0.03 m
.098 ft.
PNP
Triple beam area
reflective type
0.2 m
.656 ft.
PNP
NPN
PNP
Light source
Infrared LED
Red LED
Infrared LED
Red LED
Infrared LED
Red LED
Infrared LED
Red LED
Infrared LED
Part number
MQ-W3A-DC12-24V
MQ-W3AR-DC12-24V
MQ-W3C-DC12-24V
MQ-W3CR-DC12-24V
MQ-W20A-DC12-24V
*
1
CE types
MQ-W3A-DC12-24VEM
MQ-W3AR-DC12-24VEM
MQ-W3C-DC12-24VEM
MQ-W3CR-DC12-24VEM
MQ-W20A-DC12-24VEM
12 to 24 V DC
NPN
MQ-W20AR-DC12-24V MQ-W20AR-DC12-24VEM
MQ-W20C-DC12-24V
MQ-W20C-DC12-24VEM
MQ-W20CR-DC12-24V MQ-W20CR-DC12-24VEM
MQ-W70A-DC12-24V
MQ-W70C-DC12-24V
MQ-W70A-DC12-24VEM
MQ-W70C-DC12-24VEM
0.7 m
2.297 ft.
*
1
These suffix EM types conform to CE. These types have the grounding connection inside of housing
180
03/2003
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