CR Series
Electric capacitive type proximity sensor
Features
● Sensing of iron, metal, plastic, water, stone, wood etc.
● Long life cycle and high reliability
● DC type: Built-in surge protection circuit, reverse polarity
protection circuit
AC type: Built-in surge protection circuit
● Easy to adjust of the sensing distance with sensitivity
adjuster
● Red LED operation indicator
● Easy to control of level and position
Please read “Caution for your safety” in operation
manual before using.
Type
DC 3-wire type AC 2-wire type
Appearances Model
CR18-8DN
M18
M30
※
mark can be customized.
CR18-8DP
CR18-8DN2
CR30-15DN
CR30-15DP
CR30-15DM2
※
※
Appearances Model
M18
M30
CR18-8AO
CR18-8AC
CR30-15AO
CR30-15AC
Specifications
Model
Sensing distance 8mm 15mm
Hysteresis Max. 20% of sensing distance
Standard sensing target 50×50×1mm (Iron)
Sensing distance 0 to 5.6mm 0 to 10.5mm 0 to 5.6mm 0 to 10.5mm
Power supply
(Operating voltage)
Current consumption Max. 15mA
Leakage current
Response frequency
Residual voltage Max. 1.5V Max. 20V
Affection by Temp.
Control output Max. 200mA 5 to 200mA
Insulation resistance Min. 50MΩ (at 500VDC megger)
Dielectric strength 1,500VAC 50/60Hz for 1minute
Vibration 1mm amplitude at frequency of 10 to 55Hz (for 1 min) in each of X, Y
Shock 500m/s² (approx. 50G) in each of X, Y, Z directions for 3 times
Indicator Operation indicator: Red LED
Ambient temperature -25 to 70℃, storage: -30 to 80
Environment
Ambient humidity 35 to 95%RH, storage: 35 to 95%RH
Protection circuit Reverse polarity protection, Serge protection Serge protection circuit
Protection structure IP66 (IEC standard) IP65 (IEC standard) IP66 (IEC standard) IP65 (IEC standard)
Cable
Material
2
※
Weight
※
1: The response frequency is the average value. The standard sensing target is used and the width is set as 2 times of the standard
sensing target, 1/2 of the sensing distance for the distance.
※
2: The weight includes packaging. The weight in parentheses in for unit only.
※
Environment resistance is rated at no freezing or condensation.
CR18-8DN
CR18-3DP
CR18-8DN2
12- 24VDC
(10 -30VDC)
-
1
※
50Hz 20Hz
Max. ±10% for sensing distance at ambient temperature 20℃
Ø4mm, 3-wire, 2m Ø5mm, 3-wire, 2m Ø4mm, 2-wire, 2m Ø5mm, 2-wire, 2m
(AWG22, Core diameter: 0.08mm, Number of cores: 60, Insulator out diameter: Ø1.25mm)
CR18 - Case/Nut: PA6, Standard cable (Black): Polyvinyl chloride (PVC)
CR30 - Case/Nut: Nickel plated Brass, Washer: Nickel plated Iron, Sensing surface: PBT,
Standard cable (Black): Polyvinyl chloride (PVC)
Approx. 88g
(approx. 76g)
D-56
CR30-15DN
CR30-15DP
CR30-15DN2
℃
Approx. 243g
(approx. 206g)
CR18-8AO
CR18-8AC
8mm
100-240VAC 50/60Hz
(85-264VAC)
Max. 2.2mA
, Z directions for 2 hours
Approx. 82g
(approx. 70g)
CR30-15AO
CR30-15AC
15mm
Approx. 237g
(approx. 200g)
Electric Capacitive type
Dimensions
● CR18-8
● CR30-15
Ø26.5
24
Ø42
35
71.8
53.3
8
M18×1
71
10
5
55
M30×1.5
Control Output Diagram and Load
Operation
DC 3-wire type
NPN output type
N.O. N.C.
Sensing
target
Load
Output
voltage
(black-blue)
Operation
Indicator
(red LED)
Presence
None
Operation
Return
H
L
ON
OFF
Main circuit
Brown
+V
10
Load
kΩ
Black
Blue
(brown-black)
0V
(unit: mm)
2,000
Ø4
2,000
Ø5
Connections
DC 3-wire type
Black
Blue
Brown
PNP output type
10
kΩ
Main circuit
AC 2-wire type
Main circuit
Brown
Black
Blue
Brown
POWER
Blue
Load
Load
AC
+V
0V
Sensing
target
Load
(brown-black)
Output
voltage
(black-blue)
Operation
Indicator
(red LED)
Sensing
target
Load
Operation
Indicator
(red LED)
Presence
None
Operation
Return
H
L
ON
OFF
Presence
None
Operation
Return
ON
OFF
N.O. N.C.
N.O. N.C.
AC 2-wire type
CR18-8AO
~
Brown
Blue
<PA10-U>
Load
Load
~
100240VAC
50/60Hz
D-57
CR Series
Sensitivity Adjustment
Please turn potention VR to set sensitivity as below procedure.
1.
Without a sensing object, turn the potention VR to the right
and stop at the proximity sensor is ON (OFF).
2.
Put the object in right sensing position, turn the potention
VR to the left and stop at the proximity sensor is OFF (ON).
Stop at ON (OFF) position
3.
If the difference of the number of potention VR rotation
between the ON (OFF) point and the OFF (ON) point is
more than 1.5 turns, the sensing operation will be stable.
It is stable when it is
over 1.5 turns
OFF position
(ON position)
※
When there is distance uctuation between proximity sensor and the target, please adjust 2 at the farthest distance from
ON position
(OFF position)
Stop at OFF(ON) position
4.
If it is set in sensitivity adjustment position of potention
VR at center between 1 and 2, sensitivity setting will be
completed
.
Adjustment completed
OFF position
(ON position)
ON position
(OFF position)
this unit.
※
Turning potention VR toward clockwise, it will be max., or turning toward counter clockwise, it will be min. The number of
adjustment should be 15±3 revolution and if it is turned to the right or left excessively, it will not stop, but it idles without
breakdown.
※
( ) is for Normally closed type.
Grounding
The sensing distance will be changed by grounding status of capacitive proximity sensor and the target[50×50×1mm(Iron)].
Please check the material when installing the sensor and selecting the target.
● CR18 type ● CR30 type
Ground condition
(Switch b)
Operating distance
(mm)
ON OFF
8 4
Ground
condition
Operating distance (mm) 15 18 6 6
Switch a ON OFF ON OFF
Switch b ON ON OFF OFF
D-58
Sensing target
Sensing target
Electric Capacitive type
Mutual-Interference & Influence By Surrounding Metals
When several proximity sensors are mounted closely, malfunction of sensor may be caused due to mutual interference.
Therefore, be sure to keep a minimum distance between the two sensors as below charts.
(unit: mm)
Model
Item
A
Face to Face
B
Parallel
A 48 90
B 54 90
When sensors are mounted on metallic panel, you must prevent the sensors from malfunction by any metallic object.
Therefore, be sure to keep a minimum distance as below charts.
ℓ
Model
Item
ℓ
Ød
Ød
m 24 45
n 54 90
CR18 CR30
(unit: mm)
CR18 CR30
20 10
54 90
m
n
Materials
Materials of sensing targets
Sensing distance may be different by electrical characteristic of sensing target(conductivity, non dielectric constant)
and status of water absorption, size etc.
Effect by high frequency electrical field
It may cause malfunction by machinery which generate high frequency of electrical eld such as a washing machine etc.
Surrounding environment
There is water or oil on surface of sensing part, it may cause malfunction.
If the bottle for sensing of level is coated by oil etc., it may cause malfunction.
Especially, 15mm type has high sensitivity for induced objects, please be careful of waterdrops.
Organic solvents
Do not let the oil or oil liquid is owed into the sensor because the case is made by plastic.
D-59
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