Емкостные датчики приближения

Емкостные датчики приближения
KD_IVZ_en.qxd
06.07.2006
15:13 Uhr
Seite 356
Capacitive Sensors
Capacitive proximity sensors
Capacitive proximity sensors
High level of temperature
stability
Enhanced sensing ranges
for functional reserve
High level of immunity against:
– Electrostatic discharge,
e.g. in plastic or wood production
– Electromagnetic interference, e.g. caused
by radio transceivers and mobile telephones
– Interference surge voltage caused by switching
devices or solenoid valves
– Conducted high frequency, e.g. frequency
converters or switched-mode power supplies
Capacitiv
356
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05-08-2006
KD_IVZ_en.qxd
06.07.2006
15:13 Uhr
Seite 357
Contents
Capacitive proximity sensors
General
page 358
Operating principle
page 360
Selection table
page 361
Type code
page 361
CM series
CM 18
page 362
CM 30
page 366
CQ series
CQ 28
page 370
CQ 35
page 372
citive proximity sensors 05-08-2006
SENSICK CATALOGUE
357
Capacitive Sensors
Reliable for use in all branches of industry.
Three housing designs.
Four types.
18 or 30 mm cylindrical threaded housing, or a rectangular housing having an active sensing surface equipped
with a 35 mm sensing face. The size of the sensing surface determines the choice of which sensor should be
used. The larger it is, the greater the sensing distance,
starting 3 to 8 mm for the CM 18 and ranges to 25 mm
for the CM 30 and the CQ 35.
Electro-magnetic interference?
No problem!
Even exercising the greatest of care, electro-magnetic
interference in manufacturing and storage systems can
never be totally eliminated. Solenoid valves, relays and
switches or frequency converters in close proximity, or
electro-static discharges from the contents in a container
or silo have very little effect upon SICK capacitive sensors.
Presence, filling, checking, testing.
In every branch of industry.
Level and feed monitoring – that is one of attributes of
capacitive sensors, irrespective of whether it involves a solid
material such as paper or wood, granules or liquids. They
reliably detect the status of the product in the production
process and during final inspection.
Presence is enough.
Metallic or non-metallic, solid or liquid, compacted or powder-like.
Not all materials sensed by a capacitive sensor react in the same
way. Nevertheless, they are detected equally well by a sensor, irrespective of their properties. Their mere presence in the electro-static field of the sensor detects any material, which is non-gaseous.
Water-based materials are particularly easy to detect.
They are all robust and resistant to aggressive
chemicals.
The capacitive sensors supplied by SICK are suitable for extremely adverse
industrial environments. Protection to IP 67 is Standard, and in aggressive
environments, the CM 18 PTFE operates particularly well. Due to its PTFE
housing it resists virtually all chemicals, acids, alkalis and solvents, and is
particularly hygienic – an advantage not only for food processing, but also,
for the petro-chemical industry and in the semi-conductor industry for wafer
manufacture.
358
SENSICK CATALOGUE
Close at hand, but no disruption to work activity.
Capacitive sensors supplied by SICK are always convenient to use. Sensing
ranges between 8 and 25 mm allow clearance in almost any installation situation
and they are extremely adaptable for a wide range of applications.
As a result, these sensors remain unaffected by interference and malfunctions.
Impurities and contamination, dust and airborne spray particles have little effect
upon them as does electro-magnetic interference. No wonder that they are
installed in the most diverse branches of industry. In the food industry, car industry or in storage and conveying technology.
SENSICK CATALOGUE
359
KD01_Kapazitive_en.qxd
06.07.2006
16:12 Uhr
Seite 360
Capacitive proximity sensors
Operating
principle
The active element in a capacitive proximity sensor consists of a sensor electrode and shielding. Together, these two electrodes form the capacitor.
Active surface
Sensing flag
RC oscillation
circuit
Signal analyser
Switch amplifier
On the approach of a sensing flag (metallic or non-metallic object), a change
in capacity takes place in the electrical field of this capacitor, i.e. the capacitor
of the RC oscillation circuit is arranged in such a way that its capacity increases when an object approaches. The oscillator is set in such a way that it only
becomes capable of oscillation through this increase in capacity. The start in
oscillation when an object approaches is detected by the signal analyser and
output via the signal amplifier.
Sensing flag
I
damped
sn
U
undamped
Reduction factor R
As with the inductive proximity sensors, the reduction factor depends on the
material. It describes the factor by which the sensing range s is reduced by a
certain material, with reference to the nominal sensing range sn, which results
from the use of an earthed ST37 metal plate as sensing flag.
The most important reduction factors for capacitive proximity sensors are:
Iron, earthed
Water
Wheat
Wood
Glass
1.0
1.0
0.3 ... 0.6
0.2 ... 0.9
0.3 ... 0.7
Oil
PVC
PE
Ceramic material
0.2
0.4
0.37
0.3
The reduction factor heavily depends on the moisture content of the material.
360
SENSICK CATALOGUE
05-08-2006
KD01_Kapazitive_en.qxd
03.08.2006
14:26 Uhr
Seite 361
Capacitive proximity sensors
Test
Standard
Product Standard
EN 60497-5-2
General interference immunity
Generic Standard EN 50082-2
SICK Capacitive Sensors
Electrostatic Discharge ESD
EN 61000-4-2
(IEC 1000-4-2)
4 kV cd 1)/
8 kV ad 2)
4 kV cd 1)/8 kV ad 2)
17 kV cd 1)/ad 2)
HF radiated
EN 61000-4-3
(IEC 1000-4-3)
3 V/m
80 ... 1000 MHz
10 V
80 ... 1000 MHz
> 15 V/m
80 ... 1000 MHz
HF wire conducted
EN 61000-4-6
(IEC 1000-4-6)
–
10 V
0.15 ... 80 MHz
> 10 V/m
Burst
EN 61000-4-4
(IEC 1000-4-4)
1 kV
2 kV
4 kV
Surge
IEC 255-5
1 kV, 500 Ohm
–
2.5 kV, 500 Ohm
1)
2)
cd = Contact discharge
ad = Air discharge
The same installation notes apply as for the inductive proximity sensors (see p. 210).
Selection table
CM 18
CM 18
CM 30
CM 30
CQ 35
1)
2)
Housing
Sensing range Sn in mm
Switching Output functioutput
on
Connection
Design, size in mm, material
Flush
Non-flush
P 1)
C 3) Co. 4)
8
8
16
16
12
16
with threat
M18, Plastic
M18, PTFE
M30, Plastic
M30, Plastic
Cuboid
35x55x15, Plastic
P = PNP
Com. = Complementary
3)
4)
Electr.
config.
From
page
25
25
DC
DC
DC
AC
362
364
366
368
25
DC
372
Com. 2)
C = Cable
Co. = Connector
Type code
CM
18 – 08B
N
P
–
K
W
0
Sensor technology
Capacitive
Other codes
C
0
Design
–
Cables and connectors
Cylinder with thread
M
W
Cable, PVC
Cuboid
Q
C
Connector M12 x 1
Housing shape
Housing material
Metric external thread 18
18
K
Plastic
Metric external thread 30
30
T
PTFE (Teflon®)
Edge length of sensing face 35
35
Output
P
Sensing range/installation
Complementary
Flush
B
Non flush
N
P
PNP, 4-wire, 10 ... 40 V DC
8 mm, flush
08B
N
NPN, 4-wire, 10 ... 40 V DC
25 mm, non flush
25N
A
2-wire, 20 ... 265 V AC
05-08-2006
Interface
SENSICK CATALOGUE
361
KD01_CM18_en.fm Seite 362 Donnerstag, 6. Juli 2006 4:38 16
Capacitive sensor, CM18, DC 4-wire, Plastic
Dimensional drawing
4
Capacitive sensor
2
High EMC immunity
Short-circuit protection (pulsed)
M18x1
Sensing range
8 / 12 mm
3
1
46.5
Complementary output function
Enclosure rating IP 67
8
79.5
15.5
4
LED status indicator
3
M18x1
2
1
46.5
8
91.5
2
M18x1
4
3
1
46.5
71.5
15.5
4
3
M18x1
2
1
46.5
83.5
1
Connection
2
Display LED
3
Potentiometer
4
Fastening nuts (2 x); width across 24, Plastic
Connection type
CM18-08BNP-KC1
CM18-08BPP-KC1
CM18-12NNP-KC1
CM18-12NPP-KC1
CM18-08BNP-KW1
CM18-08BPP-KW1
CM18-12NNP-KW1
CM18-12NPP-KW1
M12, 4-pin
4 x 0.34 mm²
See chapter Accessories
Connector, M12, 4-pin
Mounting systems
362
SENSICK CATALOGUE
brn
1
blk
4
wht
2
blu
3
+ V DC
brn
1
NO
blk
4
NC
wht
2
– V DC
blu
3
+ V DC
NO
NC
– V DC
05-08-2006
KD01_CM18_en.fm Seite 363 Donnerstag, 6. Juli 2006 4:38 16
CM18
Technical specifications
Sensing range Sn
CM18-
08BNP 08BNP 08BPP 08BPP 12NNP 12NNP 12NPP 12NPP
-KC1 -KW1 -KC1 -KW1 -KC1 -KW1 -KC1 -KW1
8 mm
12 mm
Electrical configuration
DC 4-wire
Supply voltage Vs
DC 10 ... 40 V
Ripple Upp
≤ 10 %1)
Voltage drop Ud
≤ 2.5 V2)
Power consumption
≤ 10 mA3)
Continuous current Ia
≤ 200 mA
Time delay before availability tv
≤ 100 ms
Hysteresis H, of sr
4 ... 20 %
Repeatability R
≤ 5 % (Ub and Ta constant)4)
Temperature drift, of sr
± 10 %
EMC
According to EN 60947-5-2
Switching output
NPN
PNP
Output function
Complementary
Installation
Flush
Non-flush
Connection type
Connector, M12, 4-pin
Cable, PVC, 2 m
Enclosure rating
IP 675)
Max. switching frequency
30 Hz
Dimensions
M18 x 16)
Short-circuit protection
7)
Reverse polarity protection
Power-up pulse suppression
Shock/vibration stress
30 g, 11 ms/10 ... 55 Hz, 1 mm
Ambient temperature operation
-25 °C ... +80 °C
Housing material
Plastic
Tightening torque
1) of
2) at
Ub
Ia max
2.6 Nm
3) without
4) of s
r
load
5) according to EN 60529
6) Thread diameter x pitch
7) (pulsed)
(mm)
Order information
Type
Order no.
CM18-08BNP-KC1
CM18-08BNP-KW1
CM18-08BPP-KC1
CM18-08BPP-KW1
CM18-12NNP-KC1
CM18-12NNP-KW1
CM18-12NPP-KC1
CM18-12NPP-KW1
05-08-2006
6 021 456
6 021 455
6 020 388
6 020 136
6 021 458
6 021 457
6 020 410
6 020 389
SENSICK CATALOGUE
363
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Capacitive sensor, CM18, DC 4-wire, PTFE/teflon
Dimensional drawing
4
Capacitive sensor
2
PTFE housing with M18 x 1 mm
High EMC immunity
3
1
46.5
Short-circuit protection (pulsed)
Complementary output function
Enclosure rating IP 67
LED status indicator
M18x1
Sensing range
8 mm
15.5
71.5
1
Connection
2
Display LED
3
Potentiometer
4
Fastening nuts (2 x); width across 24, PTFE
Connection type
CM18-08BNP-TW0
CM18-08BPP-TW0
See chapter Accessories
4 x 0.34 mm²
Mounting systems
364
SENSICK CATALOGUE
brn
1
blk
4
wht
2
blu
3
+ V DC
NO
NC
– V DC
05-08-2006
KD01_CM18_en.fm Seite 365 Donnerstag, 6. Juli 2006 4:38 16
CM18
Technical specifications
CM18-
Sensing range Sn
8 mm
Electrical configuration
DC 4-wire
Supply voltage Vs
DC 10 ... 40 V
Ripple Upp
≤ 10 %1)
Voltage drop Ud
≤ 2.5 V2)
Power consumption
≤ 10 mA3)
Continuous current Ia
≤ 200 mA
Time delay before availability tv
≤ 100 ms
Hysteresis H, of sr
4 ... 20 %
Repeatability R
≤ 5 % (Ub and Ta constant)4)
Temperature drift, of sr
± 10 %
EMC
According to EN 60947-5-2
Switching output
NPN
08BNP 08BPP
-TW0 -TW0
PNP
Output function
Complementary
Installation
Flush
Connection type
Cable, PVC, 2 m
Enclosure rating
IP 675)
Max. switching frequency
30 Hz
Dimensions
M18 x 16)
Short-circuit protection
7)
Reverse polarity protection
Power-up pulse suppression
Shock/vibration stress
30 g, 11 ms/10 ... 55 Hz, 1 mm
Ambient temperature operation
-25 °C ... +60 °C
Housing material
PTFE/teflon
Tightening torque
1) of
2) at
Ub
Ia max
2.6 Nm
3) without
4) of s
r
load
5) according to EN 60529
6) Thread diameter x pitch
7) (pulsed)
(mm)
Order information
Type
Order no.
CM18-08BNP-TW0
CM18-08BPP-TW0
05-08-2006
6 026 194
6 026 195
SENSICK CATALOGUE
365
KD01_CM30_en.fm Seite 366 Donnerstag, 6. Juli 2006 4:44 16
Capacitive sensor, CM30, DC 4-wire, Plastic
Sensing range
16 / 25 mm
Dimensional drawing
4
2
High EMC immunity
Short-circuit protection (pulsed)
M30x1.5
Capacitive sensor
3
1
12
50
Complementary output function
Enclosure rating IP 67
75.6
15.4
4
2
M30x1.5
LED status indicator
3
1
50
63.6
15.4
2
M30x1.5
4
3
1
12
50
91
2
M30x1.5
4
3
1
50
79
1
Connection
2
Potentiometer
3
Display LED
4
Fastening nuts (2 x); width across 36, Plastic
Connection type
CM30-16BNP-KC1
CM30-16BPP-KC1
CM30-25NNP-KC1
CM30-25NPP-KC1
CM30-16BNP-KW1
CM30-16BPP-KW1
CM30-25NNP-KW1
CM30-25NPP-KW1
M12, 4-pin
4 x 0.34 mm²
See chapter Accessories
Connector, M12, 4-pin
Mounting systems
366
SENSICK CATALOGUE
brn
1
blk
4
wht
2
blu
3
+ V DC
brn
1
NO
blk
4
NC
wht
2
– V DC
blu
3
+ V DC
NO
NC
– V DC
05-08-2006
KD01_CM30_en.fm Seite 367 Donnerstag, 6. Juli 2006 4:44 16
CM30
Technical specifications
Sensing range Sn
CM30-
16BNP 16BNP 16BPP 16BPP 25NNP 25NNP 25NPP 25NPP
-KC1 -KW1 -KC1 -KW1 -KC1 -KW1 -KC1 -KW1
16 mm
25 mm
Electrical configuration
DC 4-wire
Supply voltage Vs
DC 10 ... 40 V
Ripple Upp
≤ 10 %1)
Voltage drop Ud
≤ 2.5 V2)
Power consumption
≤ 10 mA3)
Continuous current Ia
≤ 200 mA
Time delay before availability tv
≤ 100 ms
Hysteresis H, of sr
4 ... 20 %
Repeatability R
≤ 5 % (Ub and Ta constant)4)
Temperature drift, of sr
± 10 %
EMC
According to EN 60947-5-2
Switching output
NPN
PNP
Output function
Complementary
Installation
Flush
Non-flush
Connection type
Connector, M12, 4-pin
Cable, PVC, 2 m
Enclosure rating
IP 675)
Max. switching frequency
50 Hz
Dimensions
M30 x 1.56)
Short-circuit protection
7)
Reverse polarity protection
Power-up pulse suppression
Shock/vibration stress
30 g, 11 ms/10 ... 55 Hz, 1 mm
Ambient temperature operation
-25 °C ... +80 °C
Housing material
Plastic
Tightening torque
1) of
2) at
Ub
Ia max
7.5 Nm
3) without
4) of s
r
load
5) according to EN 60529
6) Thread diameter x pitch
7) (pulsed)
(mm)
Order information
Type
Order no.
CM30-16BNP-KC1
CM30-16BNP-KW1
CM30-16BPP-KC1
CM30-16BPP-KW1
CM30-25NNP-KC1
CM30-25NNP-KW1
CM30-25NPP-KC1
CM30-25NPP-KW1
05-08-2006
6 021 460
6 021 459
6 020 475
6 020 473
6 021 462
6 021 461
6 020 477
6 020 476
SENSICK CATALOGUE
367
KD01_CM30_en.fm Seite 368 Donnerstag, 6. Juli 2006 4:44 16
Capacitive sensor, CM30, AC 2-wire, Plastic
Sensing range
16 / 25 mm
Dimensional drawing
4
2
AC 2-wire, 250 V
High EMC immunity
M30x1.5
Capacitive sensor
3
1
12
50
Configurable output function
Enclosure rating IP 67
75.6
15.4
4
2
M30x1.5
LED status indicator
3
1
50
15.4
63.6
1
Connection
2
Potentiometer
3
Display LED
4
Fastening nuts (2 x); width across 36, Plastic
Connection type
CM30-25NAP-KW1
CM30-16BAP-KW1
See chapter Accessories
2 x 0.5 mm²
Mounting systems
368
SENSICK CATALOGUE
brn
1
blu
2
V AC
V AC
05-08-2006
KD01_CM30_en.fm Seite 369 Donnerstag, 6. Juli 2006 4:44 16
CM30
Technical specifications
Sensing range Sn
CM30-
25NAP 16BAP
-KW1 -KW1
25 mm
16 mm
Electrical configuration
AC 2-wire
Supply voltage Vs
AC 20 ... 250 V
Ripple Upp
≤ 10 %1)
Voltage drop Ud
≤ 10 V2)
Power consumption
≤ 10 mA3)
Continuous current Ia
≤ 500 mA
Time delay before availability tv
≤ 100 ms
Hysteresis H, of sr
4 ... 20 %
Repeatability R
≤ 5 % (Ub and Ta constant)4)
Temperature drift, of sr
± 10 %
EMC
According to EN 60947-5-2
Output function
Configurable
Installation
Non-flush
Flush
Connection type
Cable, PVC, 2 m
Enclosure rating
IP 675)
Max. switching frequency
10 Hz
Dimensions
M30 x 1.56)
Reverse polarity protection
Power-up pulse suppression
Shock/vibration stress
30 g, 11 ms/10 ... 55 Hz, 1 mm
Ambient temperature operation
-25 °C ... +80 °C
Housing material
Plastic
Tightening torque
1) of
2) at
Ub
Ia max
7.5 Nm
3) without
4) of s
r
load
5) according to EN 60529
6) Thread diameter x pitch
(mm)
Order information
Type
Order no.
CM30-25NAP-KW1
CM30-16BAP-KW1
05-08-2006
6 028 413
6 028 411
SENSICK CATALOGUE
369
KD01_CQ28_en.fm Seite 370 Donnerstag, 6. Juli 2006 4:51 16
Capacitive sensor, CQ28, DC 4-wire, Plastic, PBT
Sensing range
10 mm
Dimensional drawing
Adjustable sensing range
1 ... 10 mm, non-flush
Short circuit and
reverse polarity protection
Teach-in via button or COM-input
1
2
3
4
46
Thin profile:
28 x 46 x 5.5 mm (w x h x d)
5.5
27.6
Capacitive sensor
4.2
1
Indicator LED green
2
Indicator LED yellow
3
Teach button
4
Sensing area
Connection type
CQ28-10NNP-KW1
CQ28-10NPP-KW1
4 x 0.14 mm²
370
SENSICK CATALOGUE
brn
1
wht
2
blk
4
blu
3
+ V DC
Teach
Q
– V DC
05-08-2006
KD01_CQ28_en.fm Seite 371 Donnerstag, 6. Juli 2006 4:51 16
CQ28
Technical specifications
CQ28-
Sensing range Sn
10 mm
Electrical configuration
DC 4-wire
Supply voltage Vs
DC 10 ... 30 V
Ripple Upp
≤ 10 %
Voltage drop Ud
≤ 2.5 V1)
Power consumption
≤ 12 mA2)
Continuous current Ia
≤ 200 mA
Time delay before availability tv
300 ms
Hysteresis H, of sr
Depending on teach adjustment
Repeatability R
≤ 5 % (Ub and Ta constant)3)
Temperature drift, of sr
± 10 %
EMC
According to EN 60947-5-2
Switching output
NPN
10NNP 10NPP
-KW1 -KW1
PNP
Output function
Programmable
Installation
Non-flush
Connection type
Cable, PVC, 2 m
Enclosure rating
IP 684)
Max. switching frequency
10 Hz
Dimensions
28 x 46 x 5.5 mm5)
Short-circuit protection
Reverse polarity protection
Shock/vibration stress
30 g, 11 ms/10 ... 55 Hz, 1 mm
Ambient temperature operation
-20 °C ... +85 °C
Ambient temperature storage
-40 °C ... +85 °C
Housing material
Plastic, PBT
1) at
2) without
Ia max
load
3) of
sr
4) according to EN
5) Width x height x
60529
depth
Order information
Type
Order no.
CQ28-10NNP-KW1
CQ28-10NPP-KW1
05-08-2006
6 030 133
6 030 132
SENSICK CATALOGUE
371
KD01_CQ35_en.fm Seite 372 Donnerstag, 6. Juli 2006 4:55 16
Capacitive sensor, CQ35, DC 4-wire, Plastic
Sensing range
25 mm
Dimensional drawing
2
Capacitive sensor
3
24.5
1
35
High EMC immunity
Short-circuit protection (pulsed)
2
Complementary output function
Enclosure rating IP 67
18
LED status indicator
8 x 4.5
55
2.5
15
3
57.5
35
24.5
1
M12x1
2
3
2
8 x 4.5
55
2.5
3
15
M12x1
12
69.5
1
Display LED
2
Potentiometer
3
Connection
Connection type
See chapter Accessories
CQ35-25NNP-KC1
CQ35-25NPP-KC1
CQ35-25NNP-KW1
CQ35-25NPP-KW1
M12, 4-pin
4 x 0.34 mm²
Connector, M12, 4-pin
372
SENSICK CATALOGUE
brn
1
blk
4
wht
2
blu
3
+ V DC
brn
1
NO
blk
4
NC
wht
2
– V DC
blu
3
+ V DC
NO
NC
– V DC
05-08-2006
KD01_CQ35_en.fm Seite 373 Donnerstag, 6. Juli 2006 4:55 16
CQ35
Technical specifications
CQ35-
Sensing range Sn
25 mm
Electrical configuration
DC 4-wire
Supply voltage Vs
DC 10 ... 40 V
Ripple Upp
≤ 10 %1)
Voltage drop Ud
≤ 2.5 V2)
Power consumption
≤ 10 mA3)
Continuous current Ia
≤ 200 mA
Time delay before availability tv
≤ 100 ms
Hysteresis H, of sr
4 ... 20 %
Repeatability R
≤ 5 % (Ub and Ta constant)4)
Temperature drift, of sr
± 10 %
EMC
According to EN 60947-5-2
Switching output
NPN
25NNP 25NNP 25NPP 25NPP
-KC1 -KW1 -KC1 -KW1
PNP
Output function
Complementary
Installation
Non-flush
Connection type
Connector, M12, 4-pin
Cable, PVC, 2 m
Enclosure rating
IP 675)
Max. switching frequency
50 Hz
Dimensions
35 x 15 x 69.5 mm6)
35 x 15 x 57.5 mm6)
Short-circuit protection
7)
Reverse polarity protection
Power-up pulse suppression
Shock/vibration stress
30 g, 11 ms/10 ... 55 Hz, 1 mm
Ambient temperature operation
-25 °C ... +75 °C
Housing material
Plastic
1)
of
2)
3)
without
4)
Ub
at Ia max
of sr
load
5)
according
6)
to EN 60529
Width x height x depth
7)
(pulsed)
Order information
Type
Order no.
CQ35-25NNP-KC1
CQ35-25NNP-KW1
CQ35-25NPP-KC1
CQ35-25NPP-KW1
05-08-2006
6 021 464
6 021 463
6 020 479
6 020 478
SENSICK CATALOGUE
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