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Электронный компонент: CB32CLN20TOFT

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Housing Rated
Mounting
ON-delay
Ordering no.
Ordering no.
diameter operating
SCR/cable
SCR/cable
dist. (S
n
)
1)
Make Break
switching
switching
32
20 mm
Non-flush
NO
CB32CLN20TO
CB32CLN20TC
32
20 mm
Non-flush
YES
CB32CLN20TOFT
CB32CLN20TCFT
1)
Object: Grounded steel plate
Specifications are subject to change without notice (02.09.05)
1
Rated operating dist. (S
n
)
CB32CLN20
2 to 20 mm
factory set at 12 mm
Sensitivity Adj. multiturn
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
)
20 to 250 VAC (ripple incl.)
Ripple
10%
Rated operational current (I
e
)
Continuous
I
e
500 mA
Short-time
< 2.5 A (max. 20 ms)
Min. load current
10 mA
Voltage drop (U
d
)
10 VAC (at loads 20 mA)
Protection
Transients
Power ON delay
100 ms
Indication for output ON
LED, yellow
Environment
Degree of protection
IP 67 (Nema 1, 3, 4, 6, 13)
Temperature
Operating temperature
-20 to +70C ( -4 to +158F)
Storage temperature
-40 to +85C (-40 to +185F)
Housing material
Body
PBT
Front
PBT
Connection
Cable
Black, 2 m, 2 x 1.5 mm
2
, 8
Oil proof PVC
Weight
Cable version
270 g
Approvals
UL, CSA
CE-marking
Yes
Type Selection
Product Description
Proximity Sensors Capacitive
Thermoplastic Polyester Housing
Type CB, 32, AC
Capacitive level sensor for solid, fluid or
granulated substances
Featuring
TRIPLESHIELDTM sensor protection
Rated operational voltage: 20-250 VAC
Adjustable sensing distance 2-20 mm
Output: SCR with or without fixed ON-delay of 30 sec.
Make or break switching function
LED indication
High noise immunity
Non-flush types
Cable versions
Capacitive proximity switches
with sensing distance 20
mm non-flush mounted.
2-wire AC output with make
(NO) and break (NC) switch-
ing.
Grey 32 polyester
housing with 2 m PVC cable.
Ideal for detecting grain or
solids as level indicator in
tanks, silos or containers.
Typical segments: agriculture,
food & Beverage, conveyor-
belts, plastic & rubber, etc.
Specifications
TRIPLESHIELD
TM
Capacitive proximity switch
Housing style
Housing size
Housing material
Housing length
Detection principle
Sensing distance
Output type
Output configuration
Timer type
Ordering Key
CB32CLN20TOFT
2
Specifications are subject to change without notice (02.09.05)
Delivery Contents
Capacitive switch: CB32CL...
Screw driver
Packaging: Plastic bag
Installation & Adjustment Guide
Wiring Diagrams
CB, 32, AC
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-
LESHIELD
TM 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
(default) to maximum rated
sensing range.
Adjustment Guide
Installation Hints
Capacitive sensors have the
unique ability to detect almost
all materials, either in liquid or
solid form. Capacitive sensors
can detect metallic as well as
non-metallic objects, how-
ever, their traditional use is for
non-metallic materials such
as:
Plastic Industry
Resins, regrinds or moulded
products.
Agriculture
Feed, solids or grain.
Wood Industry
Saw dust, paper products,
door and window frames.
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.
98,5
Dimensions
CB32CLN20TC(FT)
CB32CLN20TO(FT)
BU (2)
BU (2)
BN (3)
BN (3)
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
LED
DISTANCE
2 - 20 mm