Specifications are subject to change without notice (25.02.01)
1
Rated operating dist. (S
n
)
CA18HLF08
3 to 8 mm
factory set at 8 mm
CA18HLN12
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, front, nuts
Black polypropylene
Connection
Cable
Black, 2 m, 4 x 0.34 mm
2
Polypropylene
Weight
110 g
CE-marking
Yes
Type Selection
Product Description
Proximity Sensors Capacitive
Polypropylene 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
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.
Black M18 polypropylene
housing with 2 m cable. Ideal
for use in level applications
in chemical, semi-conductor
and food & beverage indus-
tries.
Housing
Rated
Mounting
Ordering no.
Ordering no.
diameter
operating
Transistor NPN
Transistor PNP
dist. (S
n
)
1)
Make & break switching
Make & break switching
M18
8 mm
Flush (built-in)
CA18HLF08NA
CA18HLF08PA
M18
12 mm
Non-flush
CA18HLN12NA
CA18HLN12PA
1)
Object: Grounded steel plate
Specifications
TRIPLESHIELD
TM
Type
Housing style
Housing size
Housing material
Housing length
Detection principle
Sensing distance
Output type
Output configuration
Ordering Key
CA18HLN08NA
2
Specifications are subject to change without notice (25.02.01)
Delivery Contents
Wiring Diagrams
EC, M18, DC
NPN
PNP
3 BU
2 WH
4 BK
1 BN
1 BN
2 WH
4 BK
3 BU
Capacitive switch: CA18HL...
Screw driver
2 nuts
Packaging: Cardboard box
Installation & Adjustment Guide
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 temper-
ature varies and high immunity
to electromagnetic interfer-
ence (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:
Chemical Industry
Cleansers, fertilisers, liquid
soaps, corrosives and
petrochemicals.
Semi-conductor Industry
Food & Beverage
Packaging Industry
Package inspection for
level or contents, dry
goods, fruits and vegeta-
bles, 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
CA18HL...
1) Note: Only CA18HLN
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
Bending radius
7.5 cm
Bending radius
7.5 cm
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