Specifications are subject to change without notice (02.02.2015) 1
Proximity Sensors Capacitive
Thermoplastic Polyester Housing
Types CA18CAN/CAF.....
• 4TH Generation TRIPLESHIELDTM
• Adjustable sensing distance: 2 - 10 mm Flush or
3-15 mm Non-flush
• 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
Product Description
The CA18CA.. capacitive
proximity switches feature
an improved 4TH Genera-
tion TRIPLESHIELDTM tech-
nology. Furthermore, these
sensors feature increased
immunity to electromagnetic
inteference (EMI), especial-
ly to frequency drives. Not
only does 4TH Generation
TRIPLESHIELDTM feature
an increased EMI, but it
also increases the immuni-
ty 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 func-
tion raises an alarm if the
sensing surface goes beyond
60 degree celcius.
The sensor housing is featur-
ing IP69K as well as approval
by ECOLAB for cleaning-
and disinfection agents.
Rated operating distance (Sn)
Non-flush mounted sensor 3 - 12 mm (factory setting
12 mm),
(ref. target 36x36 mm ST37,
1 mm thick, grounded)
Flush mounted sensor 2 - 8 mm (factory setting
8 mm - non-flush mounted)
(ref. target 24x24 mm ST37,
1 mm thick, grounded)
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 Sn
Specifications EN 60947-5-2
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
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 2 - 8 mm CA18CAF08NA
M 18 Flush NPN NO+NC M12 Plug 2 - 8 mm CA18CAF08NAM1
M 18 Flush PNP NO+NC Cable 2 - 8 mm CA18CAF08PA
M 18 Flush PNP NO+NC M12 Plug 2 - 8 mm CA18CAF08PAM1
M 18 Flush PNP NO Cable 2 - 8 mm CA18CAF08PODU CA18CAF08POTA
M 18 Flush PNP NC Cable 2 - 8 mm CA18CAF08PCDU CA18CAF08PCTA
M 18 Non-Flush NPN NO+NC Cable 3 - 12 mm CA18CAN12NA
M 18 Non-Flush NPN NO+NC M12 Plug 3 - 12 mm CA18CAN12NAM1
M 18 Non-Flush PNP NO+NC Cable 3 - 12 mm CA18CAN12PA
M 18 Non-Flush PNP NO+NC M12 Plug 3 - 12 mm CA18CAN12PAM1
M 18 Non-Flush PNP NO Cable 3 - 12 mm CA18CAN12PODU CA18CAN12POTA
M 18 Non-Flush PNP NC Cable 3 - 12 mm CA18CAN12PCDU CA18CAN12PCTA
Type Selection
2 Specifications are subject to change without notice (02.02.2015)
CA18CAN/CAF.....
Specifications (cont.) EN 60947-5-2
Usable operating dist. (Su)* 0.85 x Sr ≤ Su ≤ 1.15 x Sr
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 (toff) ≤ 10 ms
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
-30 to +85°C ( -22 to +185°F)
Max. temperature on sensing face 120°C (248°F)
Storage temperature
-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 @ TEXC = 800°C
315 sec @ TEXC = 80°C
TRIPLESHIELDTM
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)
** 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.
90°
60°
30°
0°
* For Flush type sensor flushmounted in conductive material, the usable operating distance (Su) is 0.80 x Sr ≤ Su ≤ 1.2 x Sr for temperatures
exceeding 0 - 60 °C
( 32 - 140°F)
.
Specifications are subject to change without notice (02.02.2015) 3
The environments in which
capacitive sensors are
in stall ed can often be un
sta-
ble as regards to tempera-
ture, humi dity ,
object dis-
tance and industrial (noise)
inter ference. Because of
this, Carlo Ga vazzi offers
as standard features in all
TRIPLESHIELDTM capacitive
sensors a user-friendly sen-
sitivity adjustment instead
of a fixed sensing range.
Likewise, these sensors
provide an extend ed sen-
sing range to accommodate
mechanically de mand ing are-
as and tem perature stability
to en sure high immunity to
elec tro magnetic interference
(EMI) and a minimum need
for adjusting sensitivity if the
temperature varies.
Note:
Sensors are factory set
(default) to nominal sensing
range Sn.
Adjustment Guide
CA18CAN/CAF.....
Wiring Diagram
NPN
BN
BK
WH
BU
10 - 40 VDC
200 mA
PNP
BN
BK
WH
BU
10 - 40 VDC
200 mA
PNP Dust- or Temperature alarm on NC
BN
BK
WH (DU/TA)
BU
10 - 40 VDC
200 mA
PNP Dust- or Temperature alarm on NO
10 - 40 VDC
200 mA
BN
BK
WH (DU/TA)
BU
Detection Diagram
Y
X
Sensor
Target
-25
-20
-15
-10
-5
0
5
10
15
20
25
-8 -4 -2 0 2 6 8 10 12 144
-0,31 -0,24 -0,16 0 0,08 0,24 0,31 0,39 0,47 0,55
-0,98
-0,79
-0,59
-0,39
-0,20
0,00
0,20
0,39
0,59
0,79
0,98
-6
0,16-0,08
-25
-20
-15
-10
-5
0
5
10
15
20
25
-8 -4 -2 0 2 6 8 10 12 144
-0,31 -0,24 -0,16 0 0,08 0,24 0,31 0,39 0,47 0,55
-0,98
-0,79
-0,59
-0,39
-0,20
0,00
0,20
0,39
0,59
0,79
0,98
-6
0,16-0,08
Flush Non-flush
Distance (mm) Distance (mm)
(mm)
(mm)
Distance (inch) Distance (inch)
(inch)
(inch)
Sensor head
Sensor head
4 Specifications are subject to change without notice (02.02.2015)
CA18CAN/CAF.....
Dimensions
PlugCable
1
4
3
2
Colour code
1 Brown
2 White
3 Blue
4 Black
CA18CAF....
86
M18 x 1.0 x 55
70
15
LED
CA18CAF....M1
85
M18 x 1.0 x 55
70
15 M12 x 1.0
LED
CA18CAN....
86
M18 x 1.0 x 47
70
8 15
LED
CA18CAN....M1
85
M18 x 1.0 x 47
70
8 15 M12 x 1.0
LED
DIST.
OUTPUT
STABLE
Yellow LED
Sensitivity
adjustment Green LED
Backside of sensor
Detection Stability Indication
Dust alarm NC >1 sec. >1 sec. >1 sec. >2 sec.
Dust alarm NO >1 sec. >1 sec. >1 sec. >2 sec.
Output NC
Output NO
Yellow LED ON
Green LED ON
Stable OFF
Output OFF
Output ON
Stable ON
Time
Target influence
Specifications are subject to change without notice (02.02.2015) 5
Installation Hints
Capacitive sensors have a
unique ability to detect al-
most any material in li quid or
solid form. Capa ci tive sen-
sors are able to detect me-
tallic as well as non-metallic
ob jects. How ever, their tradi-
tional use is for non-metallic
materials such as:
• Plastics Industry
Resins, regrinds or mould-
ed products.
• 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.
• 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 ma-
terial, the better or easier it is
to detect the object.
The nominal sensing di stan-
ce for a capacitive sensor
is refe r red to a grounded
me tal plate (ST37). For addi-
tional information regarding
di elec tric ratings of materi-
als please re fer to Technical
Information.
Relief of cable strain Protection of the sensing face Switch mounted on mobile carrierTo avoid interference from inductive voltage/
current peaks, separate the prox. switch pow-
er cables from any other power cables, e.g.
motor, contactor or solenoid cables Not correct
Correct
The cable should not be pulled A proximity switch should not serve as
mechanical stop
Any repetitive flexing of the
cable should be avoided
Delivery Contents
• Capacitive switch: CA18CAN/CAF.......
• User manual
• 2 x M18 fingernuts
• Screwdriver
• Packaging: Cardboard box
Accessories
• Connector type CONM14NF.. -series.
• Mounting Brackets AMB18-S.. (straight),
AMB18-A.. (angled)
CA18CAN/CAF.....
