88
LONG RANGE TRIGONOMETRIC
AREA REFLECTIVE
PHOTOELECTRIC SENSORS
(AC OR DC POWER)
MR3/MR3-T
Series
PRODUCT TYPE
SENSING RANGES
Sensing range (m ft.)
1 3.281 2 6.562
MR3-M100 type
Detection method
Area reflective type
Range
1 m 3.281 ft.
12 to 24 V DC
12 to 240 V DC
24 to 240 V AC
12 to 24 V DC
12 to 240 V DC
24 to 240 V AC
Transistor
(NPN and PNP) No MR3-M100A-DC12-24V
MR3-M100AT-DC12-24V
MR3-M100P-12-240VCE
MR3-M100PT-12-240VCE
MR3-M200A-DC12-24V
MR3-M200AT-DC12-24V
MR3-M200P-12-240VCE
MR3-M200PT-12-240VCE
Yes
No
Yes
No
Yes
No
Yes
1 from A relay
(3 A 250 V AC)
Transistor
(NPN-PNP)
1 from A relay
(3 A 250 V AC)
2 m 6.562 ft.
Rated operating voltage
Control output Timer Part number
MR3-M200 type
FEATURES
Long range sensors.
The first long distance optical triangula-
tion photoelectric sensors for 1 m 3.281
ft. and
2 m 6.562 ft. applications.Suitable for
detection of passing targets and posi-
tioning.
New added type with timer functions.
The 3-mode (ON-delay, OFF-delay,
One-shot) timer function is built-in the
MR3-T type, to prevent detection errors
and make it easier to send a high
speed signal to a PC etc. The control
time range is from 0.1 to 5 sec.
AC or DC power
The DC type operates by 12 to 24 V
DC and the AC-DC type by 12 to 240 V
DC or 24 to 240 V AC power supply.
This allows operation voltages world
wide.
Accurately detects objects, regard-
less of colors, materials and shapes.
Area reflective type sensor permits the
detection of white and black targets at
the same distance. Also targets with
mixed colors, difficult to detect with
standard diffuse reflective type sensors,
can be detected.
Unaffected background objects.
Area reflective type sensors do not
detect objects beyond the set point.
False detection, caused by movement
beyond detectable objects, does not
occur.
Tolerates dirty lens with consistent
position detection.
There is virtually no variation in the
operation even if the lens surface
becomes dirty. Position detection of tar-
gets approaching from the front is
always constant.
Various outputs selectable
Two outputs are provided for the DC
type, NPN and PNP output, so that a
single photoelectric sensor can match
the polarity of the power supply
wiring.The output section of the AC/DC
type contains compact 1 Form A con-
tact rated 3 A, 250 V AC (resistive).
Designed for easy installation and
adjustment.
• Screw terminals for easy wiring.
• One-touch switch for mode selection.
An output protection circuit is built-
in the DC type.
Water protected construction (equiv-
alent to IEC IP66).
APPLICATIONS
Detection of medium to large targets.
Large product assembly lines, automat-
ic vertical warehouses, personnel
detection, etc.
Adjuster LEDDistance adjustment dial
Light-ON/Dark-ON selector
Operation indicator
LED
Timing mode and
Light-ON/Dark-ON selector
Light indicator LED
Time range adjustment
dial
Operation indicator
LED
Distance adjustment dial
Without timer
With timer
088-093/MR3 0.6.10 12:21 Page 1
89
SPECIFICATIONS
DC type
1) Ratings
2) Performance
3) Output circuit diagram
Types without timer, MR3 Types with timer, MR3-T
Circuit diagram Circuit diagram
Operating side Rated operating voltage
Type
Detection principle Triangulation sensing method
Detection method Area reflective type
Type Amplifier selfcontained DC type without timer, MR3 Amplifier selfcontained DC type with timer, MR3-T
Part number MR3-M100A-DC12-24V MR3-M200A-DC12-24V MR3-M100AT-DC12-24V MR3-M200AT-DC12-24V
1 m 3.281 ft. 2 m 6.562 ft. 1 m 3.281 ft. 2 m 6.562 ft.
0.2 to 1 m .656 to 3.281 ft.
White drawing paper: 20T20 cm 7.874T7.874 inches
0.5 to 2 m 1.641 to 6.562 ft. 0.2 to 1 m .656 to 3.281 ft. 0.5 to 2 m 1.641 to 6.562 ft.
Sensing range
Detectable distance
Standard target
Detectable target Opaque, translucent
Operating voltage range 9.6 to 30 V DC ripple (P-P) included
Response time (freq.) 1 ms or less (500 times per second or less)
Initial insulation resistance 20 MΩor less between input/output and external housing (at 500 V DC)
Initial breakdown voltage
Vibration
resistance
Between input/output and external housing: 500 Vrms for 1 min
Functional 10 to 55 Hz (1 cycle/min), double amplitude 1.5 mm .059 inch (10 min each on 3 axes)
Destructive
Functional
Destructive
10 to 55 Hz (1 cycle/min), double amplitude 1.5 mm .059 inch (2 h each on 3 axes)
Shock
resistance 98 m/s2{approx. 10 G} (6 times each on 3 axes)
980 m/s2{approx. 100 G} (6 times each on 3 axes)
Protective construction Plastic case, water-protected (equivalent to IEC IP66)
Incandescent lamp
Usable
ambient
light level
3,000 lux or less
Sunlight 10,000 lux or less
Ambient temperature –25°C to 55°C –13°F to 131°F (non-icing condition)
Ambient humidity Max. 85% RH (non-condensing condition)
Storage temperature –30°C to 70°C –22°F to 158°F
Indicator
Light source
Timer
functions
Operation indicator LED (Light incident),
Adjuster LED Light indicator LED (Light incident),
Operation indicator LED
Infrared LED
Time range — 0.1 to 5 s
— Normal, ON-delay, OFF-delay, One-shot
Operation mode
Hysteresis 10% or less of the set range
12 to 24 V DC
Types without timer, MR3 Types with timer, MR3-T
55 mA or less (excluding load) 60 mA or less (excluding load)
100 mA or less (NPN side), 100 mA or less (PNP side)
Rated current consumption
Output current capacityLoad side
Unless otherwise specified, the measurement conditions comprise rated operating voltage, power supply by battery, 20°C 68°F ambient temper-
ature, standard target and 200 lux or less illuminance on the receiver surface.
088-093/MR3 0.6.10 12:21 Page 2
90
AC/DC type
1) Ratings
2) Performance
3) Output circuit diagram
Types without timer, MR3 Types with timer, MR3-T
Circuit diagram Circuit diagram
Operating side Rated operating voltage
Type
Detection principle Triangulation range measurement method
Detection method Area reflective type
Type
Amplifier selfcontained AC/DC type without timer , MR3 Amplifier selfcontained AC/DC type with timer, MR3-T
Part number MR3-M100P-12-240VCE MR3-M200P-12-240VCE MR3-M100PT-12-240VCE MR3-M200PT-12-240VCE
1 m 3.281 ft. 2 m 6.562 ft. 1 m 3.281 ft. 2 m 6.562 ft.
0.2 to 1 m .656 to 3.281 ft. White drawing paper: 20T20 cm 7.874T7.874 inches
0.5 to 2 m 1.641 to 6.562 ft. 0.2 to 1 m .656 to 3.281 ft. 0.5 to 2 m 1.641 to 6.562 ft.
Sensing range
Detectable distance
Standard target
Detectable target Opaque, translucent
Operating voltage range 10.8 to 264 V DC/21.6 to 264 V AC
Response time (freq.) 20 ms or less (25 times per second or less)
Initial insulation resistance 100 MΩor more (at 500 V DC) between live terminal and dead metal parts
between live terminal and contact
between live contact and dead metal parts
between open contacts
Initial breakdown voltage Between live terminal and dead metal parts: 2,000 Vrms for 1 min
Between live terminal and contact: 2,000 Vrms for 1 min
Between contact and dead metal parts: 2,000 Vrms for 1 min
Between open contacts: 1,000 Vrms for 1 min
Vibration
resistance Functional 10 to 55 Hz (1 cycle/min), double amplitude 1.5 mm .059 inch (10 min each on 3 axes)
Destructive 10 to 55 Hz (1 cycle/min), double amplitude 1.5 mm .059 inch (2 h each on 3 axes)
Shock
resistance Functional 98 m/s2{approx. 10 G} (3 times each on 3 axes)
Destructive 980 m/s2{approx. 100 G} (3 times each on 3 axes)
Protective construction Plastic case, water-protected (equivalent to IEC IP66)
Incandescent
amp
Usable
ambient
light level
3,000 lux or less
Sunlight 10,000 lux or less
Ambient temperature –25°C to 55°C –13°F to 131°F (non-icing condition)
Ambient humidity Max. 85% RH (non-condensing condition)
Storage temperature –30°C to 70°C –22°F to 158°F
Indicator Operation indicator LED (Light incident),
Adjuster LED
Light source Time range Infrared LED
Timer
function
Output
—
Operation mode —
Contact arrangement
Initial contact resis-
tance (By voltage
drop 6 V DC 1 A)
1 Form A
100 mΩor less
Contact material Gold flash over silver alloy
Expected life (max.) Electrical: 105times (20 cpm at rated load); Mechanical: 5T107times (20 cpm)
0.1 to 5 s
Normal, ON-delay, OFF-delay, One-shot
Light indicator LED (Light incident),
Operation indicator LED
Hysteresis 10% or less of the set range
12 to 240 V DC/24 to 240 V AC
Types without timer, MR3 Types with timer, MR3-T
DC: 3 W or less ; AC: 4 VA or less DC: 4 W or less ; AC: 5 VA or less
3 A 250 V AC (resistive)
Rated current consumption
Output current capacityLoad side
Unless otherwise specified, the measurement conditions comprise rated operating voltage, 20°C 68°F ambient temperature, standard target and 200 lux or less
illuminance on the receiver surface.
088-093/MR3 0.6.10 12:22 Page 3
91
DATA
1. Operating range characteristics
MR3-M100 types MR3-M200 types
2. Projector beam diameter
characteristics
MR3-M100 types
Light beam diameter is determined as the region where the
amount of light is decreased to 1/e2 (e ]2.72) when the
largest amount of light is assumed as 1.
4. Material characteristics
MR3-M100 types
Condition: Target: 15T15 cm 5.906T5.906 inch natural shape DIMENSIONS
3. Sensing range and surface
area characteristics
MR3-M100 types MR3-M200 typesMR3-M200 types
Beam dia.
(mm inch)
Operating distance
(cm ft.)
100
3.281
50
1.641
25 dia.
.984
22 dia.
.866
50
1.969 50
1.969 100
3.937
100
3.937
For 100 cm 3.281 ft.
For 150 cm 4.922 ft.
For 200 cm 6.562 ft.
For 50 cm 1.641 ft.
Operating range
(mm inch)
Operating
distance
(cm ft.)
Moving direction
Standard target
(white drawing paper
200×200 mm
7.874×7.874 inch)
100
3.281
150
4.922
200
6.562
50
1.641
10
.394 10
.394
20
.787 20
.787
For 100 cm 3.281 ft.
For 50 cm 1.641 ft.
Operating range
(mm inch)
Operating distance
(cm ft.)
Moving direction
Standard target
(white drawing paper 200×
200 mm 7.874×7.874 inch)
100
3.281
50
1.641
10
.394 10
.394
20
.787 20
.787
50
1.641
100
3.281
4
.620 10
1.550 100
15.500 400
62.000 1,000
155.000
Distance setting 50 cm 1.641 ft.
Distance setting 100 cm 3.281 ft.
Target size (cm2 inch2)
Sensing range (cm ft.)
Standard target (white drawing paper
20×20 cm 7.874×7.874 inch)
200
6.562
100
3.281
4
.620 10
1.550 100
15.500 400
62.000 1,000
155.000
Distance setting 100 cm 3.281 ft.
Distance setting 200 cm 6.562 ft.
Target size (cm2 inch2)
Sensing range (cm ft.)
Standard target (white drawing paper
20×20 cm 7.874×7.874 inch)
Beam dia.
(mm inch)
Operating
distance
(cm ft.)
100
3.281
50
1.641
25 dia.
.984
150
4.922 34 dia.
1.339
200
6.562 48 dia.
1.890
22 dia.
.866
50
1.969 50
1.969 100
3.937
100
3.937
50
1.641 100
3.281
Color drawing paper
Distance range (cm ft.)
White
drawing
paper
Yellow
Orange
Red
Brown
Green
Blue
Black
Set for white paper: 50 cm 1.641 ft.
Set for white paper: 100 cm 3.281 ft.
MR3-M200 types
Condition: Target: 15T15 cm 5.906T5.906 inch natural shape
100
3.281 200
6.562
Color drawing paper
Distance range (cm ft.)
White
drawing
paper
Yellow
Orange
Red
Brown
Green
Blue
Black
Set for white paper: 100 cm 3.281 ft.
Set for white paper: 200 cm 6.562 ft.
MR3/MR3-T Photoelectric sensor Outline dimensions
( ) denotes MR3-T timer type. General tolerance:
±1.0 .039
Dimensions with the mounting
bracket attached.
Note: The mounting bracket is enclosed
in the inner carton.
General tolerance:
±1.0 .039
mm inch
68
2.677 58
2.283
58
2.283
5
.197
25.4
1.000
Distance adjustment dial
Conduit connector
Operation indicator LED
2-5.1 .201 dia. hole
Adjuster LED
(Light indicator LED)
26
1.024
1.8
.071 0.7
.028
5 .197 5 .197
088-093/MR3 0.6.10 12:22 Page 4
92
SCHEMATIC
DC TYPE AC/DC TYPE
TIMING FUNCTIONS FOR MR3-T TIMER TYPE
1) Timing operation
DISTANCE ADJUSTMENT
Note: Ground the frame ground terminal and ground terminal when using
a switching power supply. This will ensure stable operation.
1) Point the detection surface of the
photoelectric sensor in the direction to
detect and temporarily fasten.
2) Set the distance adjustment dial to
its maximum setting FAR. Slowly turn it
counterclockwise without an object pre-
sent and note the position where the
operation (light) indicator LED turns
OFF. The maximum position at which
the LED turns off is the FAR position.
3) Place a target at the detection posi-
tion and set the distance adjustment
dial to its minimum setting NEAR.
Slowly turn it clockwise and note the
operation (light) indicator LED turns
ON. The minimum position at which the
LED turns ON is the NEAR position.
4) Set the distance adjustment dial to
the middle of the two positions found in
step 2) and step 3) before.
5) Fasten the photoelectric sensor.
Mount securely so that the photoelec-
tric sensor is not shifted from alignment
by vibrations or impact.
For the MR3-T timer type, see the
words in the ( ).
Notes
1. If the adjuster LED does not turn ON in 4)
(note that there is no adjuster LED for the
MR3-T timer type), or if the position LED for
the distance adjustment dial in 2) ( or 3) is
less than 2 graduations, either change the
position of the detection surface and repeat
1) to 4), or adjust external factors such as
ambient temperature variations, position of
target, etc.
2. The detection distance varies only slightly
with the color of the target. However, if the
target has extremely low reflection factor
(mirrors, glass, glossy paper and other spec-
ular reflective objects), adjustment of the
detectable distance may not be applied to
the distance adjustment dial, otherwise it
may be damaged.
Distance
adjustment dial
Adjuster LED
(Light indicator
LED)
Operation
indicator LED
Control
output mode Timing mode
(Timing mode
selector *1) Timing functions
Light-ON
mode
Dark-ON
mode
Normal mode
1—
ON-delay mode
5Inhibits control output for the set
time (Ts)
OFF-delay mode
3The control output stays ON for the
set time (Ts) after detection is over.
One-shot mode
7The control output is ON for the set
time (Ts) after detection.
Normal mode
2—
ON-delay mode
6
The control output is inhibited OFF
for the set time after detection is
over.
OFF-delay mode
4The control output is stays OFF for
the set time (Ts) after detection.
One-shot mode
8The control output is ON for the set
time (Ts) after detection is over.
Detection state Light entry
Light blocked
ON
OFF
ON
OFF
ON
T
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
rR
T
rR T
rR
T
rR
T
rR
T
rR T
rR T
rR
T
rR T
rR
T
rR T
rR
T
rR
T
rR
*1: See “Timing mode and Light-ON/Dark-ON selector” below.
Notes: 1) Timing range: T 0.1s to 5s
2) During the normal mode, the time range adjustment dial should be set to MIN position.
1
3
2
4
Red gilt
at "+" side Red gilt
at "–" side
1
3
2
4
088-093/MR3 0.6.10 12:22 Page 5
93
2) Timing mode and Light-ON/Dark-ON selector
1Light-ON/Normal mode
2Dark-ON/Normal mode
3Light-ON/OFF-delay mode
4Dark-ON/OFF-delay mode
5Light-ON/ON delay mode
6Dark-ON/ON-delay mode
7Light-ON/One-shot mode
8Dark-ON/One-shot mode
1. Operating Environment
1) The sensor should be used in an
ambient temperature range of –25 to
+55°C –13 to +131°F.
2) Use an operating voltage in the
range of 9.6V to 30 V DC (includes
peak to peak ripple) for the DC types
and 21.6V to 264V AC or 10.8V to
264V DC for the AC/DC types.
3) The light intensity on the receiver
surface should be less than 3,000 lux
for an incandescent light source and
less than 10,000 lux for sunlight.
4) Use a surge absorber as the internal
circuit may be damaged if external
surge voltages exceed 5..V (for DC
type)/4,000V (for AC/DC type)
[±(1.2T50)µs signal polarity full-wave
voltage].
5) Avoid use in locations with high con-
centrations of steam, dust , corrosive
gases, etc.
6) Use a load relay with a rated operat-
ing voltage of 12V DC or 24V DC for
the DC types. The voltage applied to
the load relay is the operating voltage
of the photoelectric sensor minus the
internal voltage drop (maximum 1.2V
NPN side, 2V PNP side). Voltage fluc-
tuations should be taken into account.
7) The output circuit of the DC type
contains a short-circuit protection cir-
cuit. When controlling loads with a large
inrush current, such as capacitive
loads, be sure the inrush current does
not exceed the maximum output current
capacity. If the short-circuit is activated,
it can be reset either by turning the
power off and then turning it back on, or
by ON/OFF operation.
2. Wiring
1) Check all wiring before applying
power since incorrect wiring may dam-
age the internal circuit.
Also, carefully tighten the terminal
screws so that the wires of adjacent ter-
minals do not touch.
2) Although any cable can be used, a
round cable with a smooth surface and
an outside diameter of 9 to 11 mm .354
to .433 inch should be used and the
cable connector (supplied) shall be
tightened correctly to maintain water-
tight performance. Use a tightening
torque of 15 to 20 N·m {147 to 196
kgf·cm 127.60 to 170.03 lbf·in}.
3) the conduit inlet accepts PF1/2
threads.
4) If crimp terminals are used, crimp the
terminals and then secure with the ter-
minal (M3.5) screws.
5) Tighten the terminal screws with a
maximum torque of 5 N·m{49 kgf·cm
42.53 lbf·in}.
6) Ground the frame ground (FG) termi-
nal and ground (G) terminal when using
a commercially available switching
regurator. If a ground is not connected,
switching noise from the power supply
may result in faulty operation.
7) Wire 0.3 mm20.005 inch2AWG22 or
larger should be used for wiring up to a
length of 100 m 328 ft.
3. Detector
1) Keep the detector surface clean as
excessive dust or dirt on the detector
surface will decrease the margin of the
distance range.
2) The front surface of the lens and
case are made of polycarbonate resin.
Although it withstands water, weak
acids and alkalines, aliphatic hydrocar-
bons, and oils and fats, it is not resis-
tant to ketones, esters, halogenated
hydrocarbons and aromatic hydrocar-
bons.
4. Movement Direction of the target
Take care with the mounting direction
of the photoelectric sensor with respect
to the movement direction of the target.
5. Other cautions
1) When using the supplied mounting
bracket, tighten the mounting screws
with a maximum torque of 8 N·m{78.4
kgf·cm 68.00 lbf·in}. If the supplied
mounting bracket is not used, mount
the sensor on a flat surface.
2) Using a torque of 3 to 5 N·m{29.4 to
49 kgf·cm 25.48 to 42.53 lbf·in}, tighten
the terminal cover and display cover
screws to maintain watertight perfor-
mance.
USABLE CRIMP TERMI-
NAL DIMENSIONS
CABLE CONNECTOR
CONSTRUCTION AND
CABLE PREPARATION
CAUTIONS
7 max.
.276
7 .276 max.
7.5 .295 max.
10 .394 max. 10 .394 max.
22 .866 max. 22 .866 max.
7.5 .295 max.
3.6 .142 dia. min.
3.6 .142 min.
17 max.
.669 17 max.
.669
50
1.969
25
.984
Power supply
Rubber gasket Locking nut
Main connector Rubber bushing
Conduit connector
Output
Photoelectric
sensor unit
mm inch
mm inch
Timing mode and Light-ON/Dark-ON selector
Light indicator LED
Time range adjustment dialOperation indicator LED
Distance adjustment dial
Time range adjustment dial
8
7
6
5
43 2 1
These products are not
safety sensors and are
not designed or intended
to be used to protect life
and prevent bodily injury
or property damage.
088-093/MR3 0.6.10 12:22 Page 6