Wirebus WCS-300 User manual

User Manual
CAPACITIVE SENSOR
MAN-EN-DE-WCS300-01.00_22
CAPACITIVE SENSOR
SC-100
WCS-300

Introduction
Thank you for choosing our CAPACITIVE SENSOR WCS-300. To ensure the correct and
efficient functioning of WCS-300, read this manual completely and attentively to understand how to
operate the product, before putting it into operation.
About this Manual
1 - This manual must be delivered with equipment to its owner;
2 - The contents of this manual are subject to change without notice;
3 - All rights reserved. No part of this manual may be copied, reproduced, republished,
transmitted or distributed for any purpose, without prior written consent of Wirebus;
4 - The specifications contained in this manual are limited to the standard models and do not
include special products (custom);
5 - All precautions were taken on preparing this manual, in order to guarantee the quality of its
information..
WARNING!
The instrument described in this technical user manual is a device suitable for application in a
specialized technical area. Wirebus supplied products are submitted to a strict quality control
process. However, industrial control electronic equipment can cause damage to machinery or
processes controlled by them in the event of any failure or improper operations and may even
endanger human lives. The user is responsible for setting and selecting values of the parameters
of the instrument. The manufacturer warns of the risks of incidents with injuries to both people and
goods, resulting from the incorrect use of the instrument.

Table of Contents
PRESENTATION................................................................................................... 4
TYPICAL APPLICATIONS .................................................................................... 4
TECHNICAL SPECIFICATIONS............................................................................ 5
Items Included......................................................................................................................5
HOW TO SPECIFY................................................................................................ 5
DIMENSIONS ........................................................................................................ 6
OPERATION.......................................................................................................... 7
MECHANICAL INSTALLATION............................................................................ 8
ELECTRICAL INSTALLATION ............................................................................. 10
WCS-300..............................................................................................................................10
WCS-300/OPT...................................................................................................................... 11
ADJUSTMENT....................................................................................................... 11
WARRANTY.......................................................................................................... 12

WCS-300
CAPACITIVE SENSOR
Page 4 of 14
WCS-300 User Manual
MAN-EN-DE-WCS300-01.00_22
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Presentation
The capacitive sensor WCS-300 was specially
developed for operation with shredded sugar cane, detecting
levels.
Built with polypropylene casing and encapsulated in
polyurethane resin, the WCS-300 is a sensor waterproof and
recommended for harsh environments.
The sensitivity adjustment wide range, easy access,
makes it a reliable detection device with great capacity to
distinguish between waste and the material to be detected.
The available options for output are: open collector and
digital voltage level.
Using up to 10 WCS-300 with our Converter/Adder WAC-510, have an efficient Chute-
Donnelly level transmitter.
Typical Applications
The WCS-300 was developed for use with cane sugar, but shows great results in the
detection of various materials such as:
fruits;
cereals;
rations;
fertilizers;
sugar;
oils;
conductive liquids or not;
cement;
organic materials;
can even be used as a proximity alarm.

WCS-300
CAPACITIVE SENSOR
WCS-300 User manual
MAN-EN-DE-WCS300-01.00_22
Page 5 of 14
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Technical Specifications
Type
Test Conditions
Sensibility
Adjustable from 0 to 50 mm (internal trimpot)
Indication
“LED”
Out
SC-500: NPN (OC) and PNP (VL) maximum 100mA
SC-500/OPT: 12 –30 V (there is no polarity) maximum 100mA
Power Consumption
0,7 VA
Input Voltage
12 - 30 Vdc
Electronic Unit
Operating
Temperature
0°C - 85°C
IP Protection
IP-65
Construction
Housing: Polyamide
Cover: “Sangel”
Strap Cover: Polypropylene
Connection
Directly to the unit to be measured by flange. M6 fixing kit included
Aprox. Weight
0,3 kg
Items Included
Item
Description
Qty
1
M6 X 20 Stainless Allen Button Head Screw Bolt
3
2
M6 Stainless Spring Washer
3
3
M6 Stainless Flat Washer
3
How to Specify
WCS-300
/____
Output
NPN or PNP output.
OPT
Optocoupler output.
Exemple: WCS-300: Capacitive Sensor with NPN or PNP output.
WCS-300/OPT: Capacitive Sensor with optocoupler output.

WCS-300
CAPACITIVE SENSOR
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WCS-300 User Manual
MAN-EN-DE-WCS300-01.00_22
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Dimensions
Figure 1 –Mounting Dimensions (mm)

WCS-300
CAPACITIVE SENSOR
WCS-300 User manual
MAN-EN-DE-WCS300-01.00_22
Page 7 of 14
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Operation
The WCS-300 is a capacitive proximity sensor, operates with beat frequencies with values
close to 1 MHz and despite the small power, has the ease of propagation, primarily through
metallic bodies. Installing several sensors on the same surface, interactions may occur between
them.
Besides, the WCS-300 detects materials in direct proportion to its mass, in other words, if
there is one body close to the sensor with more massive than the material to be measured or
detected, adjustment range will be considerably diminished, since the sensor is on the verge of
switching.
For these reasons, when the WCS-300 is applied to the measurement, sugarcane level
indication, feed systems such as Chute-Donnelly or metallic silos, is necessary to build a non-
metallic material area with low-mass to install it.
Do not place the capacitive sensor directly in contact with the part to be measured. Its
sensitivity is, in most cases, sufficient to "through" acrylic (or other non-metallic material) and
detects the product. This facilitates maintenance and preventing wear of the sensing surface.

WCS-300
CAPACITIVE SENSOR
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WCS-300 User Manual
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Mechanical Installation
Figure 2 - WCS-300 Installation
Is recommended to use acrylic because of its characteristics, such as:
low-mass;
abrasion resistance of sugarcane and other materials;
transparency that allows viewing of the material to be detected and facilitates sensitivity
adjustment;
possibility of use of existing displays.
Acrylic
Metal
Sensor

WCS-300
CAPACITIVE SENSOR
WCS-300 User manual
MAN-EN-DE-WCS300-01.00_22
Page 9 of 14
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The minimum distance between the center of the sensor and the edge of the acrylic should not be
less than 100 mm.
Recommended is to install the SC-500 acrylic with a minimum thickness of 10 mm and a
maximum thickness of 15 mm.
Figure 3 - INCORRECT Installation Figure 4 - CORRECT Installation

WCS-300
CAPACITIVE SENSOR
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WCS-300 User Manual
MAN-EN-DE-WCS300-01.00_22
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Electrical Installation
WCS-300
Figures below, show the configuration of the output stages open collector and voltage level,
respectively, with indicating color of the connection cables and a simple application example.
Connection
Description
Red (RD)
Input Voltage (+)
Black (BK)
Input Voltage (–)
White (WH)
Out NPN (open collector)
Blue (BU)
Out PNP (digital voltage level)
Connection examples:
Figure 5 –NPN (OC) Figure 6 –PNP (VL)
P.S.: It is recommended to install a diode to protect the internal circuitry of the equipment, e. g.
1N4004.

WCS-300
CAPACITIVE SENSOR
WCS-300 User manual
MAN-EN-DE-WCS300-01.00_22
Page 11 of 14
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WCS-300/OPT
Figures below, show the configuration of the output, with indicating color of the connection
cables and a simple application example.
Connection
Description
Red (RD)
Input Voltage (+)
Black (BK)
Input Voltage (–)
White (WH)
Out
Blue (BU)
Out
Connection examples:
Figure 7 –Switching the negative pole Figure 8 –Switching the positive pole
P.S.: It is recommended to install a diode to protect the internal circuitry of the equipment, e. g.
1N4004.
Adjustment
The WCS-300 has a sensitivity setting located near the status light (LED), should be
removed protective cap to access it.
The sensitivity must be adjusted with the sensor installed and operating in the normal
process, noting that it is increased by turning the "trimpot" clockwise.

WCS-300
CAPACITIVE SENSOR
Page 12 of 14
WCS-300 User Manual
MAN-EN-DE-WCS300-01.00_22
All rights reserved to Wirebus © 2013 –2022
Warranty
The manufacturer assures to the equipment owners, identified by the purchase invoice,
warranty of 1 (one) year as follows:
1 - The warranty period begins on the data of the invoice issue.
2 - Within the warranty period, the labor and parts used for repairing damage occurred in
normal use are free.
3 - For repairs, send the equipment along with the shipping invoices to our factory in
Sertãozinho, São Paulo state, Brazil. Wirebus’s address is available at the end of this
manual.
4 - The owner is responsible for transportation costs and risks.
5 - Warranty will be automatically suspended if changed are made to the equipment by
personnel not authorized by Wirebus, defects caused by mechanical shock, exposure to
conditions unfit for use or tampering with the product.
6 - Wirebus disclaims any charge relating to unauthorized repairs or replacements due to
failures caused by agents external to the equipment, the improper use of them and as a
result of unforeseeable circumstances or major forces.
7 - The Wirebus ensures full operation of the equipment described herein and all existing
operations.

Notes

Wirebus Technology & Innovation
Avenida 21 de Março, 2359
Centro –14120-000
Dumont –São Paulo –Brasil
E-mail: [e-mail]
www.wirebus.com.br
MAN-EN-DE-WCS300-
01.00_22
Capacitive Sensor
WCS-300
A Wirebus reserves the right to change this manual content without
notice in order to keep updating it with potential product developments.