Carlo Gavazzi CAM18DC Data sheet

Proximity Sensors Capacitive
Teflon Housing
Type CA, M18, DC

™

TRIPLESHIELD

• Featuring TRIPLESHIELD™ sensor protection

• Adjustable sensing distance 3-8 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 types

• Cable versions

Product Description

Capacitive proximity switc h­es with sensing distance of 8
mm flush mounted in metal.
4-wire DC output with both
ma ke (NO) and break (NC)
switch ing.

White M18 Teflon housing
with 2 m cable. Ideal for use
in level applica tions in the
chemical, semi-conductor
and food & beverage indus­tries.

Ordering Key

Type
Housing style
Housing size
Housing material
Housing length
Detection principle
Sensing distance
Output type
Output configuration

CA 18 FLF 08 NA

Type Selection

Housing Rated Mounting Ordering no. Ordering no.
diameter operating Transistor NPN Transistor PNP
dist. (Sn)

M18 8 mm

1)

Object: Grounded steel plate

1)

Make & break switching Make & break switching

Flush (built-in)

CA18FLF08NA CA18FLF08PA

Specifications

Rated operating dist. (Sn) 3 to 8 mm
factory set at 8 mm

Sensitivity Adj. 270° turn pot. meter
Effective operation dist. (Sr) 0.9 x Sn ≤ Sr ≤ 1.1 x S
Usable operation dist. (Su) 0.8 x Sr ≤ Su ≤ 1.2 x S
Repeat accuracy (R) ≤ 5%
Hysteresis (H)
Rated operational volt. (UB) 10 to 40 VDC

(ripple included)

Ripple ≤ 10%
Rated operational current (Ie)

Continuous ≤ 200 mA

No-load supply current (Io) ≤ 10 mA
Voltage drop (Ud) ≤ 2.5 VDC at max. load
Protection Reverse polarity,

short-circuit, transients

Frequency of operating
cycles (f) 30 Hz

4 to 20% of sensing distance

n

r

Indication for output ON LED, yellow
Environment

Degree of protection IP 67 (Nema 1, 3, 4, 6, 13)

Temperature

Operating temperature
Storage temperature

Housing material
Body, front, nuts Teflon

Connection
Cable Grey, 2 m, 4 x 0.34 mm

Weight 110 g
CE-marking Yes

-25° to +80°C ( -13° to +140°F)

-40° to +85°C (-40° to +149°F)

Oil proof PVC

2

Specifications are subject to change without notice (05.04.2017) 1

CA, M18, DC

Dimensions

Adjustment Guide

The environments in which
capacitive sensors are install­ed can often be un
garding temperature, humi dity ,
object distance and industrial
(noise) interference. Because
of this, Carlo Ga vazzi offers
as standard features in all
TRIP LESHIELD™ capacitive
sensors a user-friendly sensi­tivity adjustment instead of
having a fixed sensing range,
extend ed sen sing range to

stable re-

accommodate mechanically
demand ing are as, temperature
stability to en sure minimum
need for adjusting sensitivity
if temperature varies and high
immunity to elec tro magnetic
interference (EMI).

Note:

Sensors are factory set (de­fault) to maximum rated sens­ing range.

Wiring Diagrams

1 BN

4 BK

2 WH

PNP

3 BU

NPN

1 BN

2 WH

4 BK

3 BU

Max.

Min.

Sensitivity

Installation Hints

Capacitive sensors have the
unique ability to detect al­most all materials, either in li­quid or solid form. Capa ci tive
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.

current peaks, separate the prox. switch
power cables from any other power cables,
e.g. motor, contactor or solenoid cables

• Chemical Industry
Cleansers, fertilisers, liquid

soaps, corrosives and
petrochemicals.

• 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

Incorrect

Correct

The cable should not be pulled

Protection of the sensing face Switch mounted on mobile carrierTo avoid interference from inductive voltage/

A proximity switch should not serve as
mechanical stop

• Semi-conductor Industry

• Food & Beverage

Industry

• Packaging Industry
Package inspection for
level or contents, dry
goods, fruits and vege­tables, dairy products.

Materials are detected due
to their dielectric constant.
The bigger the size of an ob-

Any repetitive flexing of the
cable should be avoided

ject, the higher the density of
material, the better or easi­er it is to detect the object.
Nominal sensing di stan­ce for a capacitive sensor
is referenced to a ground­ed me tal plate (ST37). For
addi tional information re­garding di elec tric ratings
of materials please re fer to
Technical Information.

Delivery Contents

• Capacitive switch: CA18FL...

• Screw driver

• 2 nuts

• Packaging: Cardboard box

• Installation & Adjustment Guide

2 Specifications are subject to change without notice (05.04.2017)

2 Specifications are subject to change without notice (03.01.03)