Specifications are subject to change without notice (20.08.01)
1
Rated operating dist. (S
n
)
CA18CLF08
3 to 8 mm
factory set at 8 mm
CA18CLN12
3 to 12 mm
factory set at 12 mm
Sensitivity
Adj. 270 turn pot. meter
Effective operation dist. (S
r
)
0.9 x S
n
S
r
1.1 x S
n
Usable operation dist. (S
u
)
0.8 x S
r
S
n
1.2 x S
r
Repeat accuracy (R)
5%
Hysteresis (H)
4 to 20% of sensing distance
Rated operational volt. (U
B
)
10 to 40 VDC (ripple included)
Ripple
10%
Rated operational current (I
e
)
Continuous
200 mA
No-load supply current (I
o
)
10 mA
Voltage drop (U
d
)
2.5 VDC at max. load
Protection
Reverse polarity,
short-circuit, transients
Frequency of operating
cycles (f)
30 Hz
Indication for output ON
LED, yellow
Environment
Degree of protection
IP 67 (Nema 1, 3, 4, 6, 13)
Temperature
Operating temperature
-25 to +80C ( -13 to +176F)
Storage temperature
-40 to +85C (-40 to +185F)
Housing material
Body
Grey, thermoplastic polyester
Front
Grey, polyester
Cable end
Polyester
Nuts
Black, reinforced nylon
Connection
Cable
Grey, 2 m, 4 x 0.34 mm
2
Oil proof PVC
Plug (M1)
M12 x 1
Cable for plug (M1)
CON.1A-series
Weight
Cable version
110 g
Plug version
30 g
Approvals
UL, CSA
CE-marking
Yes
Type Selection
Product Description
Proximity Sensors Capacitive
Thermoplastic Polyester Housing
Type CA, M18, DC
Featuring
TRIPLESHIELDTM sensor protection
Adjustable sensing distance 3-8 mm or 3-12 mm
Rated operational voltage: 10-40 VDC
Output: DC 200 mA, NPN or PNP
Make and break switching function
LED indication
High noise immunity
Flush and non-flush types
Plug and cable versions
Capacitive proximity switches
with either sensing distance 8
mm flush mounted in metal or
sensing distance 12 mm non-
flush mounted. 4-wire DC out-
put with both make (NO) and
break (NC) switching. Grey
M18 polyester housing with
2 m PVC cable or M12 plug.
Ideal for use in level and
plastic machinery applica-
tions.
Housing Rated
Mounting
Ordering no.
Ordering no.
Ordering no.
Ordering no.
diameter operating
Transistor NPN/cable Transistor NPN/plug Transistor PNP/cable Transistor PNP/plug
dist. (S
n
)
1)
Make & break
Make & break
Make & break
Make & break
switching
switching
switching
switching
M18
8 mm
Flush (built-in) CA18CLF08NA
CA18CLF08NAM1
CA18CLF08PA
CA18CLF08PAM1
M18
12 mm
Non-flush
CA18CLN12NA
CA18CLN12NAM1
CA18CLN12PA
CA18CLN12PAM1
1)
Object: Grounded steel plate
Specifications
TRIPLESHIELD
TM
Capacitive proximity switch
Housing style
Housing size
Housing material
Housing length
Detection principle
Sensing distance
Output type
Output configuration
Connection type
Ordering Key
CA18CLN12NAM1
2
Specifications are subject to change without notice (20.08.01)
Wiring Diagrams
EC, M18, DC
NPN
PNP
3 BU
2 WH
4 BK
1 BN
1 BN
2 WH
4 BK
3 BU
Max.
Min.
Sensitivity
The environments in which
capacitive sensors are install-
ed can often be unstable re-
garding temperature, humidity,
object distance and industrial
(noise) interference. Because
of this, Carlo Gavazzi offers as
standard features in all TRIP-
LESHIELDTM capacitive sen-
sors a user-friendly sensitivity
adjustment instead of having
a fixed sensing range, extend-
ed sensing range to accom-
modate mechanically demand-
ing areas, temperature stability
to ensure minimum need for
adjusting sensitivity if tempe-
rature varies and high immuni-
ty to electromagnetic interfe-
rence (EMI).
Note:
Sensors are factory set (de-
fault) to maximum rated sens-
ing range.
Adjustment Guide
Installation Hints
Capacitive sensors have the
unique ability to detect almost
all materials, either in liquid or
solid form. Capacitive sen-
sors can detect metallic as
well as non-metallic objects,
however, their traditional use
is for non-metallic materials
such as:
Plastic Industry
Resins, regrinds or moulded
products.
Chemical Industry
Cleansers, fertilisers, liquid
soaps, corrosives and pe-
trochemicals.
Wood Industry
Saw dust, paper products,
door and window frames.
Ceramic & Glass
Industry
Raw material, clay or finish-
ed products, bottles.
Packaging Industry
Package inspection for le-
vel 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. Nominal
sensing distance for a capaci-
tive sensor is referenced to a
grounded metal plate (ST37).
For additional information re-
garding dielectric ratings of
materials please refer to
Technical Information.
Dimensions
1)
M12 x 1
1)
CA18CL...
1) Note: Only CA18CLN
Relief of cable strain
Protection of the sensing face
Switch mounted on mobile carrier
To 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
Incorrect
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
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