Proximity Sensors Capacitive
Thermoplastic Polyester Housing
Types CA18CAN/CAF.....
• 4
• Adjustable sensing distance: 2 - 10 mm Flush or
• Protection: short-circuit, transients and reverse polarity
• Dust and humidity compensation
• Dust or Temperature alarm output
• Rated operational voltage: 10-40 VDC
• Output: DC 200 mA, NPN or PNP
• Standard Output: NO and NC
• LED indications for Power-supply, Target and Stability
• IP67, IP68, IP69K, Nema 1, 2, 4, 4X, 5, 6, 6P, 12
• Cable and M12 connector versions available
TH
Generation TRIPLESHIELD
3-15 mm Non-flush
TM
Product Description
The CA18CA.. capacitive
proximity switches feature
an improved 4TH Generation TRIPLESHIELDTM technology. Furthermore, these
sensors feature increased
immunity to electromagnetic
interference (EMI), especially to frequency drives. Not
only does 4TH Generation
TRIPLESHIELDTM feature
an increased EMI, but it
also increases the immunity to humidity and dust. The
implementation of stability
indication eases the setup
procedure as both Stable ON
and Stable OFF positions are
indicated by the green and
yellow LEDs.
The sensing distance is
increased by 25 % allowing
room for additional stable
detection.
The Dust Alarm function
gives an early warning that
the sensing surroundings
have to be cleaned.
The Temperature alarm function raises an alarm if the
sensing surface goes beyond
60 degree Celcius.
The sensor housing is featuring IP69K as well as approval
by ECOLAB for cleaningand disinfection agents.
Ordering Key
Capacitive prox im ity switch
Housing diameter (mm)
Housing material
Housing length
Detection principle
Rated operating dist. (mm)
Output type
Output configuration
Connection type
CA18CAN12NAM1
Type Selection
Housing Sensor Output Output Connection Rated operating Ordering no. Ordering no. Ordering no.
diameter type type function distance (Sn) Standard Dust alarm Temperature alarm
M 18 Flush NPN NO+NC Cable 0 - 8 mm CA18CAF08NA
M 18 Flush NPN NO+NC M12 Plug 0 - 8 mm CA18CAF08NAM1
M 18 Flush PNP NO+NC Cable 0 - 8 mm CA18CAF08PA
M 18 Flush PNP NO+NC M12 Plug 0 - 8 mm CA18CAF08PAM1
M 18 Flush PNP NO Cable 0 - 8 mm CA18CAF08PODU CA18CAF08POTA
M 18 Flush PNP NC Cable 0 - 8 mm CA18CAF08PCDU CA18CAF08PCTA
M 18 Non-Flush NPN NO+NC Cable 0 - 12 mm CA18CAN12NA
M 18 Non-Flush NPN NO+NC M12 Plug 0 - 12 mm CA18CAN12NAM1
M 18 Non-Flush PNP NO+NC Cable 0 - 12 mm CA18CAN12PA
M 18 Non-Flush PNP NO+NC M12 Plug 0 - 12 mm CA18CAN12PAM1
M 18 Non-Flush PNP NO Cable 0 - 12 mm CA18CAN12PODU CA18CAN12POTA
M 18 Non-Flush PNP NC Cable 0 - 12 mm CA18CAN12PCDU CA18CAN12PCTA
Specifications EN 60947-5-2
Rated operating distance (Sn)
Non-flush mounted sensor 0 - 12 mm (factory setting
12 mm),
(ref. target 36x36 mm ST37,
1 mm thick, grounded)
Flush mounted sensor 0 - 8 mm (factory setting
8 mm - non-flush mounted)
(ref. target 24x24 mm ST37,
1 mm thick, grounded)
Specifications are subject to change without notice (22.11.2017) 1
Sensitivity control Adjustable by potentiometer
Electrical adjustment 11 turns
Mechanical adjustment 16 turns
Adjustable distance
Flush types 2 to 10 mm
Non-flush types 3 to 15 mm
Effective operating dist. (Sr) 0.9 x Sn ≤ Sr ≤ 1.1 x S
n
CA18CAN/CAF.....
Specifications (cont.) EN 60947-5-2
Usable operating dist. (Su)* 0.85 x Sr ≤ Su ≤ 1.15 x S
r
Repeat accuracy (R) ≤ 5%
Hysteresis (H)
3 - 20%
Rated operational volt. (UB) 10 to 40 VDC (ripple incl.)
Ripple ≤ 10%
Output function NPN or PNP
Output switching function N.O. and N.C.
Rated operational current (Ie) ≤ 200 mA (continuous)
Capacitive load 100 nF
No-load supply current (Io) ≤ 12 mA
Voltage drop (Ud) ≤ 2.0 VDC @ 200 mA DC
Minimum operational
current (Im) ≥ 0.5 mA
OFF state current (Ir) ≤ 100 μA
Protection Short-circuit, reverse
polarity, transients
Frequency of operating
cycles (f) 50 Hz
Response time OFF-ON (ton) ≤ 10 ms
Response time ON-OFF (t
) ≤ 10 ms
off
Power ON delay (tv) ≤ 200 ms
Indication
Target detected LED, yellow
Power and detection stability LED, green
Environment
Installation category III (IEC 60664, 60664A;
60947-1)
Degree of pollution 3 (IEC 60664, 60664A;
60947-1)
Degree of protection IP 67, IP 68/60 min., IP69K**
(IEC 60529; 60943-1)
NEMA type 1, 2, 4, 4X, 5, 6, 6P, 12
Operating temperature
Max. temperature on sensing face 120°C (248°F)
Storage temperature
-30 to +85°C ( -22 to +185°F)
-40 to +85°C (-40 to +185°F)
Rated insulation voltage 1 kVAC (rms)
IEC protection class III
Tightening torque ≤ 2.6 Nm
Connection
Cable PVC,
Ø5.2 x 2 m, 4 x 0.34 mm2
Oil proof, grey
Plug (M1) M12 x 1 - 4 pin
Temperature alarm output 60ºC ± 5ºC
Response time examples
TA = 25°C 14 sec @ T
315 sec @ T
TRIPLESHIELD
TM
= 800°C
EXC
= 80°C
EXC
Exceeding the norms for
capacitive sensors
Electrostatic discharge
(EN61000-4-2)
Contact discharge > 40 kV
Air discharge > 40 kV
Electrical fast transients/burst
(EN 61000-4-4) ±4kV
Surge
(EN 61000-4-5)
Power-supply > 2kV (with 500 Ω)
Sensor output > 2kV (with 500 Ω)
Wire conducted disturbances
(EN 61000-4-6) > 20 Vrms
Power-frequency magnetic
fields (EN 61000-4-8)
Continous > 60 A/m, 75.9 µ tesla
Short-time > 600 A/m, 759 µ tesla
Radiated RF electromagnetic
fields (EN 61000-4-3) > 20 V/m
Shock (IEC 60068-2-27) 30 G / 11ms, 3 pos, 3 neg
per axis
Rough handling shocks
(IEC 60068-2-31) 2 times from 1m
100 times from 0,5m
Vibration (IEC 60068-2-6) 10 to 150 Hz, 1 mm / 15 G
Housing material
Body PBT, grey,
30% glass reinforced
Cable gland PA12, black
Fingernuts PA12, black
Trimmershaft Nylon
Weight
Cable version 150 g
Plug version 75 g
Approvals cULus (UL508), ECOLAB
CE-marking Yes
MTTFd 825 years @ 40°C (+104°F)
* For Flush type sensor flush mounted in conductive material, the usable operating distance (Su) is 0.80 x Sr ≤ Su ≤ 1.2 x Sr for temperatures
exceeding 0 - 60 °C
** The IP69K test according to DIN 40050-9 for high-pressure, high-temperature wash-down applications.
The sensor must not only be dust tight (IP6X), but also able to withstand high-pressure and steam cleaning.
The sensor is exposed to high pressure water from a spray nozzle that is fed with 80°C water at 8’000–
10’000 KPa (80–100bar) and a flow rate of 14–6L/min. The nozzle is held 100 –150 mm from the sensor at
angles of 0°, 30°, 60° and 90° for 30s each. The test device sits on a turntable that rotates with a speed of 5
times per minute. The sensor must not suffer any damaging effects from the high pressure water in appear
ance and function.
( 32 - 140°F)
.
90°
60°
-
30°
0°
2 Specifications are subject to change without notice (22.11.2017)
CA18CAN/CAF.....
Adjustment Guide
The environments in which
capacitive sensors are
installed can often be unstable as regards temperature,
humidity, object distance and
industrial (noise) interference.
That is why Carlo Gavazzi
offers as standard features in
Wiring Diagram
NPN
BN
WH
BK
BU
PNP
BN
BK
WH
all TRIPLESHIELDTM capacitive sensors a user-friendly
sensitivity adjustment instead
of a fixed sensing range. Likewise, these sensors provide
an extended sensing range to
accommodate mechanically
demanding areas and tem-
10 - 40 VDC
200 mA
10 - 40 VDC
200 mA
perature stability to ensure
high immunity to electromagnetic interference (EMI) and a
minimum need for adjusting
Note:
The sensors are factory set
(default) to nominal sensing
range Sn.Sn.
sensitivity, if the temperature
varies.
PNP Dust- or Temperature alarm on NC
BN
BK
WH (DU/TA)
BU
PNP Dust- or Temperature alarm on NO
BN
BK
WH (DU/TA)
10 - 40 VDC
200 mA
10 - 40 VDC
200 mA
BU
Detection Diagram
Sensor
-0,31 -0,24 -0,16 0 0,08 0,24 0,31 0,39 0,47 0,55
25
20
15
10
5
0
(mm)
-5
-10
-15
-20
-25
-8 -4 -2 0 2 6 8 10 12 144
Y
X
Target
Sensor head
-6
Flush Non-flush
Distance (inch) Distance (inch)
0,16-0,08
Distance (mm) Distance (mm)
0,98
0,79
0,59
0,39
0,20
0,00
-0,20
-0,39
-0,59
-0,79
-0,98
BU
-0,31 -0,24 -0,16 0 0,08 0,24 0,31 0,39 0,47 0,55
25
20
15
10
5
0
(mm)
-5
(inch)
-10
-15
-20
-25
-6
-8 -4 -2 0 2 6 8 10 12 144
Sensor head
0,16-0,08
0,98
0,79
0,59
0,39
0,20
0,00
-0,20
-0,39
-0,59
-0,79
-0,98
(inch)
Specifications are subject to change without notice (22.11.2017) 3
CA18CAN/CAF.....
2
1
4
3
Detection Stability Indication
Target influence
Green LED ON
Yellow LED ON
Output NO
Output NC
Dust alarm NO
Dust alarm NC
>1 sec. >1 sec. >1 sec.
>1 sec. >1 sec. >1 sec.
Stable ON
Output ON
Output OFF
Stable OFF
Time
>2 sec.
>2 sec.
Dimensions
CA18CAF....
M18 x 1.0 x 55
CA18CAN....
8 15
M18 x 1.0 x 47
86
70
LED
15
70
M18 x 1.0 x 55
85
LED
15
M12 x 1.0
CA18CAN....M1
CA18CAF....M1
86
70
LED
8 15
85
70
M18 x 1.0 x 47
LED
M12 x 1.0
PlugCable
The back of the sensor
Sensitivity
adjustment
Yellow LED
Green LED
Colour code
1 Brown
2 White
3 Blue
4 Black
4 Specifications are subject to change without notice (22.11.2017)
CA18CAN/CAF.....
Installation Hints
Capacitive sensors have a
unique ability to detect almost any material in li quid or
solid form. Capa ci tive sensors are able to detect metallic as well as non-metallic
ob jects. How ever, their traditional use is for non-metallic
materials such as:
• Plastics Industry
Resins, regrinds or mould-
ed products.
current peaks, separate the prox. switch power cables from any other power cables, e.g.
motor, contactor or solenoid cables
Delivery Contents
• Chemical Industry
Cleansers, fertilizers, liq-
uid soaps, corrosives and
pe t ro chemicals.
• Wood Industry
Saw dust, paper products,
door and window
frames.
• Ceramics & Glass
Industry
Raw materials, clay or
finish ed products, bottles.
Relief of cable strain
Not correct
Correct
The cable should not be pulled
Protection of the sensing face Switch mounted on mobile carrierTo avoid interference from inductive voltage/
A proximity switch should not serve as a
mechanical stop
• Packaging Industry
Package inspection for lev-
el or contents, dry goods,
fruits and vegetables, dairy
products.
Materials are detected due to
their dielectric constant. The
bigger the size of an object,
the higher the density of material, the better or easier it is
to detect the object.
Any repetitive flexing of the
cable should be avoided
Accessories
The nominal sensing di stance for a capacitive sensor
is refe r red to a grounded
me tal plate (ST37). For additional information regarding
di elec tric ratings of materials please re fer to Technical
Information.
• Capacitive switch: CA18CAN/CAF.......
• User manual
• 2 x M18 fingernuts
• Screwdriver
• Packaging: Cardboard box
• Connector type CONB14NF-... -series.
• Mounting Brackets AMB18-S.. (straight),
AMB18-A.. (angled)
Specifications are subject to change without notice (22.11.2017) 5
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