PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20
EX-10
EQ-20EQ-30
EX-40
RXRX-LS200 Amplifier Built-in
218
EX-20SERIES
Ultra-compact Photoelectric Sensor
Miniature-sized and
still mountable with
M3 screws
UL Recognition
(Excluding 5 m cable length type)
Conforming to
EMC Directive
PNP output
type available
Light intensity
monitor
Amplifier Built-in
Miniaturization by using single chip optical IC
The beam-receiving photodiode and the
A/D conversion circuit have been
fabricated on a single chip optical IC (full
custom). Hence, in spite of its miniature
size, it has a performance and reliability
which is equal to or better than the
conventional product.
0.413 in 0.323 in
10.5 mm 8.2 mm
19 mm
0.748 in
Long sensing range
The EX-20 series achieves long distance
sensing [thru-beam type: 2 m 6.562 ft, retro-
reflective type: 200 mm 7.874 in (when using
the attached reflector), diffuse reflective
type: 160 mm 6.299 in], despite its miniature
size.
Hence, it is usable even on a wide conveyor.
2 m 6.562 ft
Thru-beam type
EX-28
EX-26
200 mm
7.874 in
Retroreflective type
160 mm
6.299 in
Diffuse reflective type
Clear beam spot using red LED dot light source
The emission area of a dot light source is
smaller than that of a conventional LED
flat light source, and it is possible to
design a high power, narrow beam. Since
a red LED dot light source is used, the red
beam spot is clear even at a far place, so
that alignment and confirmation of sensing
position is easy. Further, since the thru-
beam type, too, incorporates a visible
narrow beam, it can also reliably detect
small parts, such as, chip components,
lead frames, etc.
Setting
distance:
10 mm
0.394 in
Setting
distance:
80 mm
3.150 in
5 mm
0.197 in
spot
spot
"
"
1 mm
0.039 in
"
"
Incorporates a sensitivity adjuster even in this size
The sensor incorporates a sensitivity
adjuster in spite of its miniature size. It is
convenient when you need fine
adjustment. Further, the receiver of the
thru-beam, side sensing type sensor
incorporates an operation mode switch
which can change the output operation.
Bright 2-color indicator
A bright 2-color indicator (orange, green
LED) has been incorporated in all types.
Waterproof
The sensor can be hosed down because
of its IP67 construction. Further, the
sensor mounting bracket is also made of
stainless steel.
Note: However, take care that if it is exposed to
water splashes during operation, it may
detect a water drop itself.
Globally usable
PNP output type, which is much in
demand in Europe, is also available.
Of course, it conforms to the EMC
Directive and approved UL Recognition
(excluding 5 m 16.404 ft cable length
type).
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20EX-10EQ-20EQ-30EX-40RXRX-LS200 Amplifier Built-in
EX-20
219
APPLICATIONS
Mounting spacer
Detecting chip components Checking protrusion of wafer Sensing objects from an opening
Two types for suitable mounting
Two types, side sensing type and front
sensing type sensors are available. Select
depending on the place of mounting.
Side sensing type
Front sensing type
Identical size
Front sensing type of thru-beam type
and diffuse reflective type sensors
have identical appearance. Moreover,
since the mounting holes are
symmetrical with respect to the beam
axis center, the design becomes easy.
Thru-beam type
Diffuse reflective type
10 mm
0.394 in 10 mm
0.394 in
Mounting spacer for front sensing type is available
Mounting of the
front sensing type
is possible from
the rear side by
using the mount-
ing spacer.
Mounting section reinforced
It can be tightened with M3 screws.
Moreover, metal inserts have been
provided in the mounting holes so that the
product is not damaged even in case of
excess tightening.
Side sensing type
Front sensing type
Slit mask is available
"0.5 mm "0.020 in round slit mask and
0.53 mm 0.0200.118 in rectangular
slit mask are available for both side
sensing type and front sensing type
sensors.
Universal sensor mounting bracket is available
Universal sensor mounting bracket (for
thru-beam side sensing type EX-23
only) which can freely adjust the height
and the angle of the sensor is available.
Height adjustment
Angle adjustment
Height adjustment:
15 mm
0.591 in
360 rotation
(With sensitivity adjuster) (Without sensitivity adjuster)
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20
EX-10
EQ-20EQ-30
EX-40
RX
RX-LS200 Amplifier Built-in
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
Dark-ON
Light-ON
Dark-ON
(Convergent point: 10 mm 0.394 in)
(Convergent point: 10 mm 0.394 in)
45 to 115 mm
1.772 to 4.528 in
EX-21A
EX-21A-PN
EX-21B
EX-21B-PN
EX-23
EX-23-PN
EX-29A
EX-29A-PN
EX-29B
EX-29B-PN
EX-22A
EX-22A-PN
EX-22B
EX-22B-PN
EX-24A
EX-24A-PN
EX-24B
EX-24B-PN
EX-26A
EX-26A-PN
EX-26B
EX-26B-PN
EX-28A
EX-28A-PN
EX-28B
EX-28B-PN
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
NPN open-collector transistor
PNP open-collector transistor
Switchable
either Light-ON
or Dark-ON
Thru-beamRetroreflectiveDiffuse reflective
Convergent reflective
Narrow-view reflective
Long distance spot beam type
Side sensing
Diffused beam type
Front sensing
Small spot beam type
Side sensing Front sensingSide sensingSide sensingSide sensing
Type Appearance Sensing range Model No. Output
Output operation
30 to 200 mm
1.181 to 7.874 in
(Note 1)
5 to 160 mm
0.197 to 6.299 in
(Note 2)
1 m
3.281 ft
2 m
6.562 ft
2 to 25 mm
0.079 to 0.984 in
6 to 14 mm
0.236 to 0.551 in
EX-20
220
ORDER GUIDE
Notes: 1) The sensing range of the retroreflective type sensor is specified for the RF-200
reflector.
Further, the sensing range is the possible setting range for the reflector.
The sensor can detect an object less than 30 mm 1.181 in away.
However, if the reflector is set 100 mm 3.937 in or less away, the sensing object
should be opaque.
Notes: 2) In case of using this product at a sensing range of 50 mm 1.969 in or less, take
care that the sensitivity adjustment range becomes extremely narrow.
Sensor ReflectorReflector
Actual sensing range
of the sensor
Setting range
of the reflector
Reflector cannot
be placed
in this range 30 mm 1.181 in
200 mm
7.874 in
NOTE: Mounting bracket is not supplied with the sensor. Please select from the range of optional sensor
mounting brackets (four types).
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20EX-10EQ-20EQ-30EX-40RXRX-LS200 Amplifier Built-in
EX-21A
EX-21B
EX-23
EX-29A
EX-29B
EX-22A
EX-22B
EX-24A
EX-24B
EX-26A
EX-26B
EX-28A
EX-28B
EX-21A-PN
EX-21B-PN
EX-23-PN
EX-29A-PN
EX-29B-PN
EX-22A-PN
EX-22B-PN
EX-24A-PN
EX-24B-PN
EX-26A-PN
EX-26B-PN
EX-28A-PN
EX-28B-PN
Type Standard Without reflector type 5 m 16.404 ft cable
length type
Without reflector & 5 m
16.404 ft cable length type
EX-29A-Y
EX-29B-Y
EX-29A-PN-Y
EX-29B-PN-Y
NPN output
Thru-beam
Convergent
reflective
Narrow-view
reflective
Diffuse
reflective
Retroreflective
EX-21A-C5
EX-21B-C5
EX-23-C5
EX-29A-C5
EX-29B-C5
EX-22A-C5
EX-22B-C5
EX-24A-C5
EX-24B-C5
EX-26A-C5
EX-26B-C5
EX-28A-C5
EX-28B-C5
EX-29A-Y-C5
EX-29B-Y-C5
Front sensing
Side sensing
Side sensing
Side sensing
Diffused
beam type
Front sensing
Small spot
beam type
Side sensing
Long distance
spot beam type
Diffused
beam type
Small spot
beam type
Long distance
spot beam type
Side sensing
PNP output
Thru-beam
Convergent
reflective
Narrow-view
reflective
Diffuse
reflective
Retroreflective
Front sensing
Side sensing
Side sensing
Side sensing
Front sensing
Side sensing
Side sensing
EX-20
221
ORDER GUIDE
Accessory
RF-200 (Reflector)
Table of Model Nos.
Without reflector type and 5 m 16.404 ft cable length type
Without reflector type and 5 m 16.404 ft cable length type (standard: 2 m 6.562 ft) are also available.
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20
EX-10
EQ-20EQ-30
EX-40
RX
RX-LS200 Amplifier Built-in
Slit on one side
Slit on both sides
Slit on one side
Slit on both sides
Slit on one side
Slit on both sides
Slit on one side
Slit on both sides
Sensing range: 200 mm 7.874 in
Min. sensing object: "2.6 mm "
0.102 in
Sensing range: 40 mm 1.575 in
Min. sensing object: "0.5 mm "
0.020 in
Sensing range: 350 mm 13.780 in
Min. sensing object: "3 mm
"
0.118 in
Sensing range: 70 mm 2.756 in
Min. sensing object: "0. 5mm "
0.020 in
Sensing range: 600 mm 23.622 in
Min. sensing object: "2.6 mm "
0.102 in
Sensing range: 300 mm 11.811 in
Min. sensing object: 0.53 mm 0.0200.118 in
Sensing range: 800 mm 31.496 in
Min. sensing object: "3 mm
"
0.118 in
Sensing range: 400 mm 15.748 in
Min. sensing object: 0.53 mm
0.0200.118 in
Universal sensor
mounting bracket
[For EX-23only]
Mounting spacer
For front sensing
type sensor only
Sensor checker
(Note)
()
MS-RF21-1
RF-210
RF-11
RF-12
MS-EX20-FS
CHX-SC2
Ambient temperature:
25 to50 C 13 to122 F
Ambient humidity:
35 to 85 % RH
Notes: i) Keep the tape free from
stress. If it is pressed
too much, its capability
may deteriorate.
Notes: ii) Do not cut the tape.
It will deteriorate the
sensing performance.
Sensing range:
70 to 200 mm
2.756 to 7.874 in
Sensing range:
60 to 280 mm
2.362 to 11.024 in
Sensing range: 50 to 400 mm
1.969 to 15.748 in
Min. sensing object: "30 mm
"1.181 in
Protective mounting bracket for RF-210
It protects the reflector from damage and
maintains alignment.
Reflector
For retroreflective
type sensor only
Reflector
mounting
bracket
Reflective tape
For retroreflective
type sensor only
()
()
OS-EX20-05
Slit size
"0.5 mm 0.020 in
MS-EX20-1
MS-EX20-2
MS-EX20-3
MS-EX20-4
MS-EX20-5
Sensor
mounting
bracket
Round slit mask
For thru-beam type
sensor only
Rectangular slit mask
For thru-beam type
sensor only
For front
sensing type
For side
sensing type
For front
sensing type
For side
sensing type
Back angled mounting bracket for front sensing type sensor
(The thru-beam type sensor needs two brackets.)
Foot angled mounting bracket for side sensing type sensor
(The thru-beam type sensor needs two brackets.)
L-shaped mounting bracket for front sensing type sensor
(The thru-beam type sensor needs two brackets.)
Back angled mounting bracket for side sensing type sensor
(The thru-beam type sensor needs two brackets.)
It can adjust the height and the angle of the
sensor.
(Two brackets are needed.)
It is used when mounting the front sensing
type from the rear side.
(One set consists of 10 pcs.)
It is useful for beam alignment of thru-beam
type sensors. The optimum receiver position is
given by indicators, as well as an audio signal.
Designation Model No. Description
()()
()
OS-EX20E-05
Slit size
"0.5 mm 0.020 in
()
OS-EX20-053
Slit size 0.53 mm
0.0200.118 in
()
OS-EX20E-053
Slit size 0.53 mm
0.0200.118 in
()
EX-20
222
OPTIONS
Round slit mask
Fitted on the front face of the sensor with one-touch.
OS-EX20-05 OS-EX20E-05
Rectangular slit mask
Fitted on the front face of the sensor with one-touch.
OS-EX20-053OS-EX20E-053
Sensor mounting bracket
MS-EX20-1 MS-EX20-2
MS-EX20-3 MS-EX20-4
1.311 in 0.433 in
0.504
in
33.3 mm 11 mm
12.8
mm
1.181 in 0.028 in
0.315 in
30 mm 0.7 mm
8 mm
1.181 in
0.984 in
0.028 in
30 mm
25 mm
0.7 mm
Reflector
RF-210
Reflective tape
RF-11 RF-12
Reflector mounting bracket
MS-RF21-1
Two M3 (length 12 mm
0.472 in) screws with
washers are attached.
Material: Stainless steel (SUS304)
Two M3 (length 5 mm 0.197 in)
pan head screws [stainless steel
(SUS304)] are attached.
Material: Stainless steel (SUS304)
Two M3 (length 14 mm 0.551 in)
screws with washers [stainless
steel (SUS304)] are attached.
Material: Stainless steel (SUS304)
Two M3 (length 5 mm 0.197 in)
pan head screws [stainless steel
(SUS304)] are attached.
Material: Stainless steel (SUS304)
Two M3 (length 14 mm 0.551 in)
screws with washers [stainless
steel (SUS304)] are attached.
Mounting spacer
Material: Die-cast zinc alloy
360° rotation
Height adjustment:
15 mm 0.591 in
Material: Nylon 6
Universal sensor mounting bracket
MS-EX20-5
Mounting spacer
MS-EX20-FS
Sensor checker
CHX-SC2
Note: Refer to p.414l for details of the sensor checker CHX-SC2.
Two M3 (length 12 mm 0.472 in)
screws with washers [stainless
steel (SUS304)], one M3 (length
10 mm 0.394 in) hexagon-socket-
head bolt [stainless steel
(SUS304)], and one M3 hexagon
nut [stainless steel (SUS304)] are
attached.
Sensor checker
LEVEL
POWER
CHX-SC2
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20EX-10EQ-20EQ-30EX-40RXRX-LS200 Amplifier Built-in
15 % or less of operation distance
0.05 mm 0.002 in or less
0.5 mm 0.020 in or less 0.3 mm 0.012 in or less 0.1 mm 0.004 in or less 0.05 mm 0.002 in or less 0.3 mm 0.012 in or less
(Setting distance: 10 mm 0.394 in) (Setting distance: 10 mm 0.394 in)
12 to 24 V DC10 % Ripple P-P 10 % or less
Emitter: 10 mA or less, Receiver: 15 mA or less
20 mA or less
<NPN output type>
NPN open-collector transistor
Maximum sink current: 50 mA
Applied voltage: 30 V DC or less (between output and 0 V)
Residual voltage: 1 V or less (at 50 mAsink current)
0.4 V or less (at 16 mA sink current)
DC-12 or DC-13
Incorporated
0.5 ms or less
Orange LED (lights up when the output is ON) (thru-beam type: located on the receiver)
Green LED (lights up under stable light received condition or stable dark condition)
Continuously variable adjuster Continuously variable adjuster
Located on the receiver
3 (Industrial environment)
IP67 (IEC)
25 to 55 °C 13 to 131 °F (No dew condensation or icing allowed), Storage: 30 to 70 °C 22 to 158 °F
35 to 85 % RH, Storage: 35 to 85 % RH
Sunlight: 10,000 #x at the light-receiving face, Incandescent light: 3,000 #x at the light-receiving face
EN 50081-2, EN 50082-2, EN 60947-5-2
1,000 V AC for one min. between all supply terminals connected together and enclosure
20 M, or more, with 250 V DC megger between all supply terminals connected together and enclosure
10 to 500 Hz frequency, 3 mm 0.118 in amplitude (20 G max.) in X, Y and Z directions for two hours each
500 m/s2acceleration (50 G approx.) in X, Y and Z directions for three times each
Red LED (modulated)
Enclosure: Polyethylene terephthalate, Lens: Polyalylate
0.1 mm23-core (thru-beam type sensor emitter: 2-core) cabtyre cable, 2 m 6.562 ft long
Extension up to total 50 m 164.042 ft is possible with 0.3 mm2, or more, cable (thru-beam type: both emitter and receiver).
Emitter: 20 g approx., Receiver: 20 g approx.
20 g approx.
Adjusting screwdriver: 1 pc. Adjusting screwdriver: 1 pc.
Adjusting screwdriver: 1 pc.
Green LED (lights up under stable light received condition
or stable dark condition), located on the receiver
RF-200 (Reflector): 1 pc.
Adjusting screwdriver: 1 pc.
Thru-beam
Diffuse reflective
Convergent reflective
Narrow-view reflective
Diffused beam type
Small spot beam type
Long distance spot beam type
Front sensing Side sensing Side sensing Side sensing Front sensing Side sensing Side sensing
EX-21A(-PN)EX-29A(-PN)EX-22A(-PN)EX-24A(-PN)EX-26A(-PN)EX-28A(-PN)
EX-21B(-PN)EX-29B(-PN)EX-22B(-PN)EX-24B(-PN)EX-26B(-PN)EX-28B(-PN)
Retroreflective
EX-23(-PN)
(Note 2)
<PNP output type>
PNP open-collector transistor
Maximum source current: 50 mA
Applied voltage: 30 V DC or less (between output and V)
Residual voltage: 1 V or less (at 50 mA source current)
0.4 V or less (at 16 mA source current)
1 m
3.281 ft
Min. "3 mm "0.118 in
opaque object
Setting distance between
emitter and receiver: 2 m
6.562 ft
Min. "2.6 mm "0.102 in
opaque object
Setting distance between
emitter and receiver: 1 m
3.281 ft
"15 mm "0.591 in
or more opaque or
translucent object
(Note 3)
Opaque,
translucent or
transparent
object
Min. "0.1 mm
"0.004 in
copper wire
Setting
distance: 10 mm 0.394 in
Opaque,
translucent or
transparent object
Min. "1 mm "0.039 in
copper wire at setting
distance 80 mm 3.150 in
2 m
6.562 ft 30 to 200 mm
1.181 to 7.874 in
(Note 3)
2 to 25 mm
0.079 to 0.984 in
(Conv. point: 10 mm 0.394 in)
with white non-glossy paper
(5050 mm)
(1.9691.969 in)
6 to 14 mm 0.236 to 0.551 in (Conv.
point: 10 mm 0.394 in) with white
non-glossy paper (5050 mm
1.9691.969 in), spot diameter
"1 mm "0.039 in with setting
distance 10 mm 0.394 in
45 to 115 mm 1.772 to 4.528 in
with white non-glossy paper
(100100 mm 3.9373.937 in),
spot diameter "5 mm "0.197 in
with setting distance 80 mm
3.150 in
Item
Model
No.
(Note 1)
Light-ON
Dark-ON
Type
Sensing range
Sensing object
Hysteresis
Repeatability
(perpendicular to sensing axis)
Supply voltage
Current consumption
Output
Utilization category
Short-circuit protection
Response time
Operation indicator
Stability indicator
Sensitivity adjuster
Operation mode switch
Pollution degree
Protection
Ambient temperature
Ambient humidity
Ambient illuminance
EMC
Voltage withstandability
Insulation resistance
Vibration resistance
Shock resistance
Emitting element
Material
Cable
Cable extension
Weight
Accessories
Environmental resistance
Continuously variable adjuster,
located on the emitter
5 to 160 mm
0.197 to 6.299 in
(Note 4)
with white non-glossy paper
(200200 mm)
(7.8747.874 in)
()
()()
()
Min. "0.1 mm
"0.004 in
copper wire
Setting
distance: 10 mm 0.394 in
()
EX-20
223
SPECIFICATIONS
Notes: 1) Model Nos. having the suffix ‘-PN are PNP output type.
Notes: 2) Either Light-ON or Dark-ON can be selected by the operation mode switch (located on the receiver).
3) The sensing range and the sensing object of the retroreflective type sensor are specified for the
RF-200 reflector. Further, the sensing range is the possible setting range for the reflector. The sensor
can detect an object less than 30 mm 1.181 in away. However, if the reflector is set 100 mm 3.937 in
or less away, the sensing object should be opaque.
Notes: 4) In case of using this product at a sensing range of 50 mm 1.969 in or less, take care that the
sensitivity adjustment range becomes extremely narrow.
Sensor ReflectorReflector
Actual sensing range
of the sensor
Setting range
of the reflector
Reflector cannot
be placed
in this range 30 mm 1.181 in
200 mm
7.874 in
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20
EX-10
EQ-20EQ-30
EX-40
RX
RX-LS200 Amplifier Built-in
EX-20
224
I/O CIRCUIT AND WIRING DIAGRAMS
Load
Brown
Black (Note)
Blue
Color code
12 to 24 V DC
10 %
Load
Brown
Black (Note)
Blue
Color code
12 to 24 V DC
10 %
I/O circuit diagram
Note: The emitter of the thru-beam type sensor does not incorporate the output.
Note: The emitter of the thru-beam type sensor does not
incorporate the black wire.
Note: The emitter of the thru-beam type sensor does not
incorporate the black wire.
Wiring diagram
Symbols ... D : Reverse supply polarity protection diode
Z
D
: Surge absorption zener diode
Tr: NPN output transistor
NPN output type
Users’ circuitInternal circuit
D
Z D
Tr
(Brown) V
(Black) Output (Note)
(Blue) 0 V
Color code
50 mA max.
Load
Sensor circuit
12 to 24 V DC
10 %
Note: The emitter of the thru-beam type sensor does not incorporate the output.
Symbols ... D : Reverse supply polarity protection diode
Z
D
: Surge absorption zener diode
Tr: PNP output transistor
I/O circuit diagram Wiring diagram
PNP output type
Users circuitInternal circuit
D
Tr
(Brown) V
(Black) Output (Note)
(Blue) 0 V
Color code
50 mA max.
Load
Sensor circuit
12 to 24 V DC
10 %
Z D
SENSING CHARACTERISTICS (TYPICAL)
Parallel deviation Angular deviation
Parallel deviation with round
slit masks (
"
0.5 mm
"
0.020 in)
Parallel deviation with rectangular slit
masks (0.53 mm 0.0200.118 in)
100 50 0 50 100
3.937 1.969 1.969 3.937
0
0.5
1
1.640
3.281
#L
Receiver
Emitter
Setting distance L (m ft)
Operating point ? (mm in)
CenterLeft Right
40 20 0 20 40
0
0.5
1
$L
CenterLeft Right
Operating angle $ ( ° )
Receiver
Emitter
1.640
3.281
Setting distance L (m ft)
Correlation between setting distance and excess gain
01 345
10
5
100
2
3.281 9.843 13.123 16.4046.562
Excess gain
50
Setting distance L (m ft)
EX-21
EX-23
1
0 50 150 200 250
1
10
5
100
100
50
EX-22
1.969 5.906 7.874 9.8433.937
Excess gain
Setting distance L (mm in)
0 200 600 800 1,000
10
5
100
400
50
EX-29
1
10
7.874 23.622 31.496 39.37015.748
Excess gain
Setting distance L (mm in)
20 10 0 10 20
0
100
200
#L
Receiver
Emitter
Slit on one
side
Slit on both
sides
0.787 0.394 0.394 0.787
3.937
7.874
Setting distance L (mm in)
Operating point ? (mm in)
CenterLeft Right
40 20 0 20 40
0
200
400
600
800
#L
Receiver
Emitter
Slit on one
side
Slit on both
sides
31.496
23.622
15.748
7.874
1.575 0.787 0.787 1.575
Setting distance L (mm in)
Operating point ? (mm in)
CenterLeft Right
EX-21Thru-beam type
EX-21EX-23
EX-29EX-22
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20EX-10EQ-20EQ-30EX-40RXRX-LS200 Amplifier Built-in
EX-20
225
SENSING CHARACTERISTICS (TYPICAL)
Parallel deviation Angular deviation
Parallel deviation with round slit
masks (
"
0.5 mm
"
0.020 in)
Parallel deviation with rectangular slit
masks
(0.53 mm 0.0200.118 in)
EX-23Thru-beam type
100 50 0 50 100
#L
Receiver
Emitter
3.937 1.969 1.969 3.937
6.562
3.281
Setting distance L (m ft)
Operating point ? (mm in)
CenterLeft Right
0
1
2
100 50 0 50 100
$L
Emitter
Receiver
6.562
3.281
Setting distance L (m ft)
Operating point $ ( ° )
CenterLeft Right
0
1
2
Parallel deviation Angular deviation
EX-29Retroreflective type
20 10 0 10 20
0
100
200
L
Sensor
#
Reflector
(RF-200)
0.787 0.394 0.394 0.787
7.874
3.937
Setting distance L (mm in)
Operating point ? (mm in)
CenterLeft Right
40 20 0 20 40
0
100
200
Sensor
angular
deviation
Reflector
angular
deviation
Sensor
Reflector
(RF-200)
Sensor
angular
deviation
L
$
Reflector
(RF-200)
Reflector
angular
deviation
$L
Sensor
7.874
3.937
Setting distance L (mm in)
Operating angle $ ( ° )
CenterLeft Right
Sensing field Correlation between sensing object size and sensing range
EX-22Diffuse reflective type
As the sensing object size becomes smaller
than the standard size (white non-glossy paper
200200 mm 7.8747.874 in), the sensing
range shortens, as shown in the left graph.
0
50
100
150
200
42024
White non-
glossy paper
Black non-glossy paper
Lightness: 6
#L
200200 mm
7.8747.874 in
Non-glossy paper
Sensor
Left Right
Center
Operating point # (mm in)
0.157 0.079 0.079 0.157
7.874
5.906
3.937
1.969
Setting distance L (mm in)
0 50 100 150 200
100
200
Sensing range L (mm in)
White non-glossy paper
side length a (mm in)
L
aa mm aa in
White non-glossy
paper
Sensor
1.969 3.937 5.906 7.874
7.874
3.937
Sensing fields
Horizontal (left and right) direction
Vertical (up and down) direction
EX-24Convergent reflective type
24024
0
10
20
30
40
#L
8 mm 0.315 in
Sensor
5050 mm
1.9691.969 in
White
non-glossy
paper
1.575
1.181
0.787
0.394
0.157 0.079 0.079 0.157
Operating point ? (mm in)
CenterLeft Right
Setting distance L (mm in)
24024
0
10
20
30
40
Sensor
#L
6 mm 0.236 in
1.575
1.181
0.787
0.394
0.157 0.079 0.079 0.157
Operating point ? (mm in)
CenterLeft Right
Setting distance L (mm in)
5050 mm 1.9691.969 in
White non-glossy paper
1020 0 10 20
0
100
200
300
400
Operating point ? (mm in)
CenterLeft Right
Slit on one
side
Slit on both
sides
Receiver
Emitter
#L
0.787 0.394 0.394 0.787
7.874
11.811
3.937
15.748
Setting distance L (mm in)
40 20 0 20 40
0
0.5
1
Slit on one
side
Slit on both
sides
Receiver
Emitter
#L
1.575 0.787 0.787 1.575
3.281
1.640
Setting distance L (m ft)
Operating point ? (mm in)
CenterLeft Right
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20
EX-10
EQ-20EQ-30
EX-40
RX
RX-LS200 Amplifier Built-in
EX-20
SENSING CHARACTERISTICS (TYPICAL)
N2 N4 N8N6
10
0
20
30
40
0.394
0.787
1.181
1.575
Sensing range L (mm in)
Distance to
convergent point
Sensing region
N2N1 N3 N4 N5 N6 N7 N8 N9
Lightness LightDark
Mirror
Aluminum plate
White non-glossy
paper
Black-painted
non-glossy plate
Black non-glossy
paper (N5)
Distance to
convergent point
20
0
40
60
80
Stainless steel plate
(SUS304)
0.787
1.575
2.362
3.150
Sensing range L (mm in)
Correlation between lightness and sensing range
The sensing region is represent-
ed by oblique lines in the left
figure. However, the sensitivity
should be set with enough mar-
gin because of slight variation in
products.
Lightness shown on the left
may differ slightly from the
actual object condition.
()
The bars in the graph indicate the
sensing range for the respective
material. However, there is a
slight variation in the sensing
range depending on the product.
Further, if there is a reflective
object (conveyor, etc.) in the
background of the sensing object,
since it affects the sensing,
separate it by more than twice the
sensing range shown in the left
graph.
Correlation between material (5050 mm 1.9691.969 in) and sensing range
EX-24Convergent reflective type
#
White non-
glossy paper
L
Sensor
0.5100.51
0.0200.039 0.020 0.039
0
5
10
15
20
Operating point ? (mm in)
CenterLeft Right
Setting distance L (mm in)
0.197
0.394
0.591
0.787
5050 mm
1.9691.969 in
4.1 mm
0.161 in
0.5100.51
0
5
10
15
20
Sensor
13.5 mm
0.531 in #L
5050 mm 1.9691.969 in
White non-glossy paper
0.0200.039 0.020 0.039
Operating point ? (mm in)
CenterLeft Right
Setting distance L (mm in)
0.787
0.591
0.394
0.197
EX-26Convergent reflective type
Sensing field
Horizontal (left and right) direction
Correlation between lightness and sensing range
Correlation between material (5050 mm 1.9691.969 in) and sensing range
Vertical (up and down) direction
N2 N4 N8N6
5
0
10
15
20
Sensing range L (mm in)
Distance to convergent point
Sensing region
N2N1 N3 N4 N5 N6 N7 N8 N9
Lightness LightDark
0.197
0.394
0.591
0.787
Mirror
Aluminum plate
White non-glossy
paper
Black-painted
non-glossy plate
Black non-glossy
paper (N5)
20
0
40
Sensing range L (mm in)
Stainless steel plate
(SUS304)
1.575
0.787
Distance to convergent point
The sensing region is represent-
ed by oblique lines in the left
figure. However, the sensitivity
should be set with enough mar-
gin because of slight variation in
products.
The graph is drawn for the
maximum sensitivity setting.
The bars in the graph indicate the
sensing range for the respective
material. However, there is a
slight variation in the sensing
range depending on the product.
Further, if there is a reflective
object (conveyor, etc.) in the
background of the sensing object,
since it affects the sensing,
separate it by more than twice the
sensing range shown in the left
graph, or adjust the sensitivity
adjuster.
The graph is drawn for the
maximum sensitivity setting.
226
24024
0.0790.157 0.079 0.157
0
50
100
150
200
1.969
3.937
5.906
7.874
#L
Sensor
4.1 mm
0.161 in
Operating point ? (mm in)
CenterLeft Right
Setting distance L (mm in)
White non-
glossy paper
Black non-glossy paper
Lightness: 6
Approach direction of
black non-glossy paper
100100 mm
3.9373.937 in
Non-glossy paper
500 100 150 200
1.969 3.937 5.906 7.874
L
aa mm aa in
White non-glossy
paper
Sensor
White non-glossy paper
side length a (mm in)
50
100
150
200
1.969
3.937
5.906
7.874
Sensing range L (mm in)
As the sensing object size becomes smaller
than the standard size (white non-glossy paper
100100 mm 3.9373.937 in), the sensing
range shortens, as shown in the left graph.
EX-28Narrow-view reflective type
Sensing field Correlation between sensing object size and sensing range
Lightness shown on the left
may differ slightly from the
actual object condition.
()
()
()
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20EX-10EQ-20EQ-30EX-40RXRX-LS200 Amplifier Built-in
EX-20
227
PRECAUTIONS FOR PROPER USE Refer to p.1135l for general precautions.
Mounting
Mount using M3 screws. The tightening torque should be
0.5 Nm or less.
Stability indicator
The stability indicator (green) lights up when the incident
light intensity has sufficient margin with respect to the
operation level.
If the incident light intensity level is such that the stability
indicator lights up, stable sensing can be done without the
light received operation and the light interrupted operation
being affected by a change in ambient temperature or sup-
ply voltage.
Others
Do not use during the initial transient time (50 ms) after
the power supply is switched on.
If sensors are mounted close together and the ambient
temperature is near the maximum rated value, provide for
enough heat radiation / ventilation.
If a reflective object is present in the background, the
sensing of EX-28A(-PN) and EX-28B(-PN) may be
affected. When setting the sensor, make sure to confirm
that the reflective object has no effect. In case the
reflective object affects the sensing, take measures such
as removing the reflective object or coloring it in black, etc.
Operation of stability indicator
Output operation
Incident
light
margin
Light
interruption
margin
Output
operation
level
0
100
0
Incident light intensity (%)
Setting distance
15 % approx.
25 % approx.
Lights up
Light received operation
Light interrupted
operation
Lights up
Lights off
Note: Operation mode switch should be turned fully till it stops.
Light-ON mode is obtained when the operation
mode switch (located on the receiver) is turned fully
clockwise (L side).
Dark-ON mode is obtained when the operation
mode switch (located on the receiver) is turned fully
counterclockwise (D side).
Switch position
Description
L
D
D
L
Operation mode switch (EX-23only)
1
2
3
4
Turn the sensitivity adjuster fully counterclockwise
to the minimum sensitivity position (mark).
In the light received condition, turn the sensitivity
adjuster slowly clockwise and confirm the point @
where the sensor enters the Lightstate operation.
In the dark condition, turn the sensitivity adjuster
further clockwise until the sensor enters the Light
state operation and then bring it back to confirm
point bwhere the sensor just returns to the Dark
state operation.
If the sensor does not enter the Lightstate operation
even when the sensitivity adjuster is turned fully
clockwise, this extreme position is point b.
The position at the middle of points @and b
is the optimum sensing position.
Step
Description
Notes: 1) Use the attached adjusting screwdriver to turn the adjuster slowly. Turning
with excessive strength will damage the adjuster.
Notes: 2) In case of using EX-22at a sensing distance of 50 mm 1.969 in or less,
take care that the sensitivity adjustment range becomes extremely narrow.
()
Front sensing
Side sensing
Note: When mounting the front sensing type sensor, use M3 pan head
screws without washers, etc.
When mounting the front sensing type from the backside, fit
the mounting spacer (MS-EX20-FS) and fix with screws.
M3 pan head screws
(Note)
M3 screws
1Fit the mounting spacer
on the sensor. 2
Align the mounting holes of
the mounting spacer and the
sensor and mount with M3
screws. The tightening
torque should be 0.5 Nm or
less.
Mounting method
Mounting
spacer (Optional)
M3 screws
MAX
A
MAX
A
B
MAX
A
B
Optimum position
Sensitivity adjustment (side sensing type only)
Sensitivity adjuster
This product is not a safety sensor. Its use is not
intended or designed to protect life and prevent body
injury or property damage from dangerous parts of
machinery. It is a normal object detection sensor.
Glossy object sensing [EX-29(-PN)]
Please take care of the following points when detecting
materials having a gloss.
1Make L, shown in the diagram, sufficiently long.
2Install at an angle of 10 to 30 degrees to the sensing
object.
L
10 to 30
Make L sufficiently long
Reflector
Sensing object
Glossy surface
Sensor
Wiring
Make sure that the power supply is off while wiring.
Verify that the supply voltage variation is within the rating.
If power is supplied from a commercial switching regulator,
ensure that the frame ground (F.G.) terminal of the power
supply is connected to an actual ground.
In case noise generating equipment (switching regulator,
inverter motor, etc.) is used in the vicinity of this product,
connect the frame ground (F.G.) terminal of the equipment
to an actual ground.
Do not run the wires together with high-voltage lines or
power lines or put them in the same raceway.
This can cause malfunction due to induction.
MAX
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
DIMENSIONS (Unit: mm in)
The CAD data in the dimensions can be downloaded from the SUNX website: http://www.sunx.co.jp/
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20
EX-10
EQ-20EQ-30
EX-40
RX
RX-LS200 Amplifier Built-in
EX-20
228
Operation indicator (Orange)
(Note)
Stability indicator (Green)
(Note)
2-"3.2 "0.126 mounting holes
"2.5 "0.098 cable,
2 m 6.562 ft long
Beam axis
2.3
0.091
4.5
0.177 16
0.630
10
0.394
3 0.118
18
0.709
9
0.354
3.5
0.138
8.2
0.323 2.8
0.110
10.5
0.413
Operation indicator (Orange)
(Note 1)
Stability indicator (Green)
(Note 1)
6.5
0.256
3 0.118
13
0.512
3 0.118
19
0.748
2-"3.2 "0.126
mounting holes
"2.5 "0.098 cable,
2 m 6.562 ft long
Operation mode switch
(Note 2)
9.5
0.374
Beam axis
Note: Not incorporated on the emitter. Notes: 1) Not incorporated on the emitter.
2) It is the sensitivity adjuster on the emitter.
EX-29EX-22
EX-26EX-28
EX-21EX-23
EX-24
Sensor Sensor
Sensor Sensor
Operation indicator (Orange)
Stability indicator (Green)
"2.5 "0.098 cable, 2 m 6.562 ft long
Sensitivity adjuster
Beam-
receiving part
Beam-
emitting part
2.8
0.110
8.2
0.323
10
0.394
12.3
0.484
16
0.630
3 0.118
3 0.118
5.3
0.209
5
0.197
5.5
0.217
11
0.433
2-"3.2 "0.126
mounting holes
22
0.866
Operation indicator (Orange)
Stability indicator (Green)
Beam-receiving part
Beam-emitting part
2.3
0.091
4.5
0.177
5
0.197
9
0.354
18
0.709
"2.5 "0.098 cable,
2 m 6.562 ft long
3 0.118
2-"3.2 "0.126
mounting holes
16
0.630
10
0.394
RF-200
Reflector (Accessory for the retroreflective type sensor)
Material: Acrylic (Reflector)
ABS (Base)
4.6 0.181
(13)
(0.512)
9.6
0.378
17.5
0.689
7.75
0.305
6.5 0.256 1.5
0.059
"2.3
"0.091
2.3
0.091
13
0.512
3.5 0.138
"3.2 "0.126 mounting hole
RF-210 Reflector (Optional)
10
0.394
25
0.984
3.2
0.126
33.3
1.311
12.8
0.504
11
0.433
Reflector
Base
M3 nut mounting holes
(for mounting at the back)
2-"3.4 "0.134 thru-holes
(for mounting at the side)
(for mounting at the back)
2-"3.4 "0.134 holes, 6 0.236 deep
(for mounting at the side)
2-M3 nut mounting holes
Material: Acrylic (Reflector)
ABS (Base)
Two M3 (length 8 mm
0.315 in) screws with
washers and two nuts
are attached.
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
DIMENSIONS (Unit: mm in)
The CAD data in the dimensions can be downloaded from the SUNX website: http://www.sunx.co.jp/
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20EX-10EQ-20EQ-30EX-40RXRX-LS200 Amplifier Built-in
EX-20
229
RF-11 Reflective tape (Optional)
8
0.315
0.7
0.028
30 1.181
Adhesive tape
Effective
reflecting surface
(28)(1.102)
(6)
(0.236)
RF-12 Reflective tape (Optional)
30 1.181 0.7
0.028
25
0.984
Adhesive tape
Effective
reflecting surface
(28)(1.102)
(23)
(0.906)
MS-RF21-1 Reflector mounting bracket for RF-210 (Optional)
Assembly dimensions
3.2
0.126
10.5
0.413
t 1.5
t 0.059
5 0.197
4-M30.5 0.020
11
0.433
29.5
1.161
10
0.394 5
0.197
2
0.079
2
0.079
9
0.354 19
0.748
12
0.472
Beam-receiving
part
2
0.079
4.5
0.177
5 0.197
t 1.5
t 0.059 10.5
0.413
(6.5)(0.256)
(1.2)
(0.047)
5
0.197
2 0.079
3.2 0.126
16
0.630
16
0.630
29.5
1.161
1.5
0.059
9
0.354
19
0.748
10.5
0.413
11
0.433
10
0.394
(12)(0.472)
Material: Stainless steel (SUS304)
Two M3 (length 5 mm 0.197 in) pan
head screws [stainless steel (SUS304)] are attached.
MS-EX20-1 Sensor mounting bracket (Optional)
Assembly dimensions
Mounting drawing with EX-21
Material: AcrylicMaterial: Acrylic
Material: Stainless steel (SUS304)
Two M3 (length 12 mm 0.472 in)
screws with washers are attached.
23
0.906
50
1.969
5.5
0.217
16
0.630
10
0.394 3.5
0.138
3.2
0.126
12.5 0.492
R7.5
R0.295
25
0.984
46
1.811
t1.2
t 0.047
13
0.512
"36
"1.417
"25
"0.984
20
30
23
0.906
5.5
0.217
10
0.394
12.8 0.504
13 0.512
46
1.81125
0.984
20
30
50
1.969
"36
"1.417
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
DIMENSIONS (Unit: mm in)
The CAD data in the dimensions can be downloaded from the SUNX website: http://www.sunx.co.jp/
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20
EX-10
EQ-20EQ-30
EX-40
RX
RX-LS200 Amplifier Built-in
EX-20
230
3.2 0.126
3.5
0.138
2
0.079
3.2
0.126
3-M30.5 0.020
t 1.5
t 0.059
2.5
0.098
2.5
0.098
2.5
0.098
10
16
0.630
t 1.2
t 0.047
34
1.339
14
16
0.630 3.2
0.126
14.5
0.571
16
0.630
3
0.118
8
0.315
3
0.118
7.5
0.295
12
13
0.512
R13
R0.512
12.5
0.492
R13
R0.512
Beam-receiving part
0.3
0.012
10.5
0.413
24
0.945
13
0.512
17.5
0.689
t 1.2
t 0.047
34
1.339
14
16
0.630
8
0.315
2
0.079
3.2 0.126
3.5
0.138
11.6
0.457
3
0.118
7.5
0.295 12.5
0.492
3.2
0.126 (24.1)
(0.949)
Material: Stainless steel (SUS304)
Two M3 (length 14 mm 0.551 in)
screws with washers [stainless steel
(SUS304)] are attached.
Material: Stainless steel (SUS304)
Two M3 (length 14 mm 0.551 in)
screws with washers [stainless steel
(SUS304)] are attached.
MS-EX20-2 Sensor mounting bracket (Optional)
Assembly dimensions
Mounting drawing with the
receiver of EX-23
MS-EX20-3 Sensor mounting bracket (Optional)
4-M30.5 0.020
9
0.354
3.2 0.126
2 0.079
2
0.079
9
0.354 12
0.472
19
0.748
20
0.787 6.5
0.256
10
0.394
t 1.5
t 0.059
14
0.551
4.5
0.177
3.2 0.126
2 0.079
2
0.079
10.5
0.413
1.5 0.059
19
0.748
16
0.630
18.5
0.728
3.5
0.138
10
0.394
(1.2)
(0.047)
t 1.5
t 0.059
Beam-receiving
part
11.5
0.453
9
0.354
9
0.354
14
0.551
Material: Stainless steel (SUS304)
Two M3 (length 5 mm 0.197 in) pan head screws
[stainless steel (SUS304)] are attached.
Assembly dimensions
Mounting drawing with the
receiver of EX-21
MS-EX20-4 Sensor mounting bracket (Optional)
3-M30.5 0.020
3.2 0.126
t 1.5
t 0.059
2.5
0.098
2.5
0.098
t 1.2
t 0.047
3.2
0.126
R13
R0.512 10
16
0.630
8
0.315
3
0.118
3 0.118
12
0.472
3
0.118
23
0.906
14.5
0.571
5
0.197
17
0.669
14
8
0.315
13
0.512
12
2.5
0.098
13
0.512
R13
R0.512
Beam-receiving part
0.3
0.012
10.5
0.413
12.1
0.476
3.2
0.126
13
0.512
8
0.315
3 0.118
8.2
0.323
3
0.118
12
0.472
4.5 0.177
13
0.512
3.5
0.138
23
0.906
14
t 1.2
t 0.047
17
0.669
8
0.315
(24.6)
(0.969)
Assembly dimensions
Mounting drawing with the
receiver of EX-23
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
DIMENSIONS (Unit: mm in)
The CAD data in the dimensions can be downloaded from the SUNX website: http://www.sunx.co.jp/
PHOTOELECTRIC SENSORS
CX-400
EX-30
EX-20EX-10EQ-20EQ-30EX-40RXRX-LS200 Amplifier Built-in
EX-20
231
MS-EX20-5 Universal sensor mounting bracket (Optional)
Note: This is the adjustable range of the movable part.
Assembly dimensions
Mounting drawing with the
receiver of EX-23
Material: Nylon 6
Material: Die-cast zinc alloy
Two M3 (length 12 mm 0.472 in) screws with washers [stainless
steel (SUS304)], one M3 (length 10 mm 0.394 in) hexagon-
socket-head bolt [stainless steel (SUS304)], and one M3 hexagon
nut [stainless steel (SUS304)] are attached.
MS-EX20-FS Mounting spacer (Optional)
2
0.079
6
0.236
4.2
0.165
2.5
0.098
4.5
0.177
8
0.315
10 0.394
16
0.630
4.9
0.193
10.7
0.421
"
2.5 "0.098
2-"3.4 "0.134
mounting holes
9
0.354
8
0.315
6
0.236 10
0.394
4.5
0.177 0.3
0.012
23
0.906
Beam-receiving
part 16
0.630
Assembly dimensions
Mounting drawing with the
receiver of EX-21
Material: Polycarbonate
2-M30.5 0.020
2
0.079
"7
"0.276
7
0.276
2.6
0.102
4.1
0.161
14
0.551
6
0.236
8 0.315
6 0.236
2.2 0.087
2
0.079
1.5
0.059
4
0.157
8.5
0.335 3.2
0.126
5.5
0.217 5.5 0.217
"7
"0.276
2-"3.3 "0.130
thru-holes
2.6
0.102
1.5
0.059 3 0.118
3 0.118
3.2 0.126
19.5
0.768
22.5
0.886 25.5
1.004
23.5
0.925
30
1.181
9.5
0.374
16
0.630
22.5
0.886
19.5
0.768
12
0.472
12
0.472
2-"3.2 "0.126
mounting holes
4.5
0.177 19.5
0.768
15.5
0.610
15
0.591
12
13
0.512
Beam-
receiving part
2-"3.2
"0.126
mounting
holes
6 0.236
"7
"0.276
(7.3)(0.287)
(6.7)
(0.264)
3 0.118
12
0.472
6.5
0.256
3
0.118 2.2 0.087
13
0.512
25.5
1.004
30
1.181
8.5
0.335 19.5
0.768
14
0.551
15
0.591
(15)
(0.591)(Note)
Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com