Proximity Sensors Capacitive
™
IELD
Thermoplastic Polyester Housing
SH
PLE
TRI
Type CA, M18, AC
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Featuring
TRIPLESHIELD™
sensor protection
Rated operational voltage: 20-250 VAC
Adjustable sensing distance 3-8 mm or 3-12 mm
Output: SCR
Make or break switching function
LED indication
High noise immunity
Flush and non-flush types
Plug and cable versions
DC versions in the same housing
Product Description
Capacitive proximity switches
with either sensing distance
8 mm flush mounted in metal
or sensing distance 12 mm
non-flush mounted. 2-wire AC
output with make (NO) or bre-
ak (NC) switching. Grey M18
polyester housing with 2 m
PVC cable or M12 plug. Ideal
for use in level and plastic
machinery applications.
Ordering Key
Capacitive proximity switch
Housing style
Housing size
Housing material
Housing length
Detection principle
Sensing distance
Output type
Output configuration
Connection type
CA18CLN12TOM6
Type Selection
Housing Rated
Mounting
diameter operating
dist. (S
n
)
1)
M18
M18
8 mm
12 mm
Ordering no.
SCR/cable
Make
switching
Ordering no.
SCR/plug
Make
switching
CA18CLF08TOM6
CA18CLN12TOM6
Ordering no.
SCR/cable
Break
switching
CA18CLF08TC
CA18CLN12TC
1)
Ordering no.
SCR/plug
Break
switching
CA18CLF08TCM6
CA18CLN12TCM6
Object: Grounded steel plate
Flush (built-in)
CA18CLF08TO
Non-flush
CA18CLN12TO
Specifications
Rated operating dist.
(S
n
)
CA18CLF08
CA18CLN12
Sensitivity
Effective operation dist.
(S
r
)
Usable operation dist.
(S
u
)
Repeat accuracy
(R)
Hysteresis
(H)
Rated operational volt.
(U
B
)
Ripple
Rated operational current
(I
e
)
Continuous
Short-time
Min. load current
Voltage drop
(U
d
)
Protection
Power ON delay
Freq. of operating cycles
(f)
3 to 8 mm
factory set at 8 mm
3 to 12 mm
factory set at 12 mm
Adj. 270° turn pot. meter
0.9 x S
n
≤ S
r
≤ 1.1 x S
n
0.8 x S
r
≤ S
u
≤ 1.2 x S
r
≤ 5%
4 to 20% of sensing distance
20 to 250 VAC (ripple incl.)
≤ 10%
≤ 500 mA
< 2.5 A (max. 20 ms)
10 mA
≤ 10 VAC (at loads ≥ 20 mA)
Transients
≤ 100 ms
10 Hz
Indication for output ON
Environment
Degree of protection
Temperature
Operating temperature
Storage temperature
Housing material
Body
Front
Cable end
Nuts
Connection
Cable
Plug (M6)
Cable for plug (M6)
Weight
Cable version
Plug version
Approvals
CE-marking
LED, yellow
IP 67 (Nema 1, 3, 4, 6, 13)
-25° to +80°C ( -13° to +176°F)
-40° to +85°C (-40° to +185°F)
Grey, thermoplastic polyester
Grey, polyester
Polyester
Black, reinforced nylon
Grey, 2 m, 2 x 0.5 mm
2
Oil proof PVC
M12 x 1, double keyed
CON.6A-series
110 g
30 g
UL, CSA
Yes
Specifications are subject to change without notice (17.08.2018)
1
EC, M18, AC
Dimensions
1)
Wiring Diagrams
BU (2)
BU (2)
1)
1
2
3
BN (3)
BN (3)
M12 x 1
1) Note: Only CA18CLN
CA18CLxxxTC
CA18CLxxxTO
Adjustment Guide
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
TRIPLESHIELD™
capacitive
sensors a user-friendly sen-
sitivity adjustment instead of
having a fixed sensing range,
extended sensing range to
accommodate mechanically
demanding areas, temperatu-
re stability to ensure minimum
need for adjusting sensitivity
if temperature varies and high
immunity to electromagnetic
interference (EMI).
Note:
Sensors are factory set (de-
fault) to maximum rated sen-
sing range.
CA18CL...
Max.
Min.
Sensitivity
Installation Hints
Capacitive sensors have the
unique ability to detect al-
most all materials, either in li-
quid or solid form. Capacitive
sensors can detect metallic
as well as non-metallic ob-
jects, however, their traditi-
onal use is for non-metallic
materials such as:
•
Plastic Industry
Resins, regrinds or moul-
ded products.
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
•
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.
Relief of cable strain
•
Packaging Industry
Pac-
kage inspection for level or
contents, dry goods, fruits
and vegetables, dairy pro-
ducts.
Materials are detected due
to their dielectric constant.
The bigger the size of an
object, the higher the den-
sity of material, the better
or easier it is to detect the
object. Nominal sensing di-
stance for a capacitive sen-
sor is referenced to a groun-
ded metal plate (ST37).
For additional information
regarding dielectric ratings
of materials please refer to
Technical Information.
Protection of the sensing face
Switch mounted on mobile carrier
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
2
Specifications are subject to change without notice (17.08.2018)
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