Home > Products >
Contrinex inductive devices work according to one of three different technologies. All involve the
generation of an alternating magnetic field that emerges at the sensing face. The presence of a
conductive, generally metallic, object influences this field in a way that can be detected and
evaluated by built-in electronics. All Contrinex ASIC sensors are IO-Link enabled in PNP NO
The Classics family uses conventional inductive sensor technology, but with the benefit of a
Contrinex ASIC (application specific integrated circuit). ASIC technology ensures reliability,
stability and ease of commissioning, due to low variation. Sensors in this family achieve operating
distances up to 2 x the industry standard. All ASIC sensors in the Classics family are IO-Link
enabled in PNP NO versions.
The Extra Distance family is based on the patented Condist oscillator developed by Contrinex.
Sensors benefit from up to 4x the standard operating distance, keeping them out of harm's way in
rugged, industrial environments. Sensor lifetime is therefore increased.
The Full Inox family is based on Contrinex's patented Condet technology. These one-piece
stainless steel sensors are not only the most durable on the market, they also offer long operating
distances on any conductive metal.
If you are looking for CONTRINEX Products, please call us on (800) 894 - 0412 or email us at
email@example.com we will do our best to help you find the proximity
sensors that you are looking for at the most competitive prices possible. If you are searching for Inductive light screen
technical information (data-sheets) please use the datasheets or product selection guide page links.
The light-emitting diode (LED) emits a beam of modulated light towards the target. This beam is
interrupted by the target, causing partial reflection. A part of the reflected light reaches the
sensing face of the receiver. Depending on the operating principle, either the interrupted beam or
the reflected light is used for further processing.
Contrinex photoelectric devices are divided into nine technology families, depending on their
operating principle and use. The program includes energetic diffuse sensors, diffuse sensors with
background suppression, reflex sensors, throughbeam sensors, sensors with analog output, color
sensors, contrast sensors, distance measuring sensors and optical amplifiers.
A diffuse-mode, or energetic-diffuse, photoelectric sensor is a reflective sensor, containing
a transmitter and a receiver in a single housing. The sensor emits a light beam toward a distant
target that acts as a reflector, returning part of the transmitted light to the sensor. The
receiver detects the amount of light reflected by the target, triggering the sensor when the
light intensity reaches a threshold value. Diffuse-mode sensors are cost-effective as they do not
require separate reflectors or receivers, and detect reflective targets with ease. Sensing range
depends on the target's size, shape, color and surface finish, although sensor sensitivity is
adjustable during installation to compensate for targets with poor reflective qualities.
Capacitive sensors are used in machines, installations and vehicles for monitoring the levels of
liquids, pastes and bulk material. These materials can even be detected through non-metallic dividing
walls. In addition, capacitive sensors are suitable as limit switches, contact-free position
switches, for monitoring and positioning, as pulse generators for counting purposes, distance and
speed measurement, and much more.
The electrodes at the device's sensing face permit the sensor to detect the dielectric conditions
in its close surroundings. Depending on the distance between the target (or material) to be detected
and the capacitive sensor, the capacitance in the measuring zone changes. The capacitance is
dependent not only on the above-mentioned distance, but also on the dielectric constant (er) of the
target, as well as its shape. As the sensor approaches the target, the capacitance increases. When
the set threshold value is reached, the transistor-oscillator is activated. By means of the built-in
electronics, a changeable, electrical current is generated which, depending on the execution of the
device, is available as a linear current signal or as a binary voltage at the output.
Using capacitive sensors, electronic circuits and PLCs, as well as relays or contactors can be
controlled directly. Capacitive sensors are enclosed in synthetic or metal housings and potted in
epoxy resin. They are, moreover, insensitive to dirt and shock.
Ultrasonic sensors can be used as contact-free devices in many areas of automation. They are
employed wherever distances have to be measured in air, since they not only detect objects, but they
can also indicate and evaluate the absolute distance between themselves and the target. Changing
atmospheric conditions, (e.g. temperature variations) are compensated during evaluation of the
Ultrasonic devices working as diffuse or reflex sensors send out ultrasonic impulses in cyclical
intervals. If these are reflected by an object, the resulting echo is received and converted into an
electrical signal. Detection of the received echo is dependent on its intensity, itself dependent on
the distance of the object from the sensor. The devices function according to the echo-delay
principle, i.e. the time delay between the emitter and echo impulses is evaluated.
Due to the sensor's construction, the ultrasound is radiated in a lobar shape. Only reflecting
objects within this sound beam are detected. Echoes in the blind zone between the sensing face and
the sensing range cannot be evaluated. The targets to be detected can be in the solid, liquid,
granular or powder state. The material may be transparent or colored, of any shape, and with a
polished or matt surface. All even or flat surfaces up to an angular deviation of approximately
3° from perpendicular to the sound beam can be detected with certainty, even at the maximum
Light Screens & Access Control Barriers
The Safetinex product line produced by Contrinex offers high-quality safeguarding solutions for
both personnel and machinery. The range comprises highly sensitive Type-4 devices for finger, hand
and access protection in various lengths. The safety portfolio now also comprises a complete range of
hand protection devices in various lengths for Type 2, category 2, PL c, SIL 1 applications.
Safetinex products have been developed in compliance with the applicable international safety
standards and have obtained the required product certification for use in the European Union, the
United States of America and all other countries where the applicable IEC standards have been
adopted. A complete range of Safetinex light curtains and access control barriers is offered for the
highest safety requirements: safety category 4, PL e according to EN/ISO 13849-1, Type 4 according to
IEC 61496-1 and -2. In addition, hand protection devices are available with a Type 2 safety rating
(IEC 61496-1 and -2) which meet category 2, PL c according to EN/ISO 13849-1 and SIL 1 according to
IEC 61508. All Safetinex products have successfully obtained the highly rated TÜV certification.
Contrinex low-frequency RFID technology features not only conventional components, but also a range of
all-metal read/write modules and transponders executed in stainless steel. These devices are particularly well suited for
difficult operating environments that are exposed to cleaning, chemical products, water and frost. They are moreover highly
resistant to mechanical shocks.
Contrinex high-frequency RFID technology (13.56 MHz) meets the requirements of ISO/IEC 15693 and is therefore
not limited to transponders of a specific manufacturer. The new Contrinex high-frequency system is moreover particularly user
friendly. Up to 10 read/write modules can be connected to the RS485 network and controled directly by a PC via a USB adaptor
developed by Contrinex. The physical address of the read/write module can be defined by means of a built-in selector.
Radio Frequency Identification Systems
To ensure you have the right cables and cable connectors for your application, we offer a range of products
that are not only quick and easy to use, but also tailored to your needs. Impervious and cleaning resistant cable sets are
available for applications that require an intensive wash-down. ECOLAB certified cables and connectors are also provided to meet
food-safe application requirements. Use our connectors, cables and distribution boxes for speedy setup times and optimum system
- Comprehensive cable and connector program
- IP 69K and Ecolab-tested cables for the food and beverage industry
- UL-approved cables and connectors
- Cables with straight or right-angle sockets
- Distribution boxes
- Field-attachable connectors
- User-friendly standard portfolio
Laser diffuse sensors with background suppression have an excellent detection
accuracy. The narrowly focused beam with its easily visible light spot results in
a clearly defined, largely contrast-independent switch point.
Laser reflex sensors have an excellent beam quality, thereby guaranteeing a
precise switch point anywhere between the emitter and the reflector. Even very
small objects can be detected without problem.
Laser diffuse sensors with analog output are ideal for contact-free and quick
distance measuring. Their small but visible light spot permits a clear definition
of the measuring point.
Contrinex inductive ring sensors are available in various sizes, and consequently suitable for a large
range of applications. They feature a very robust, compact and universally mountable housing with integrated electronics. They
are used mainly in assembly technology. In automated supply applications, they detect small metal parts in feeder tubes, and
in the food industry, they guarantee the absence of metal parts in fluids, pastry, and pastes. Due to their static operating
principle, the devices are also suitable for monitoring wire breakages and jams.
The very short response time permits safe detection, even at very high target speeds (for some types, up to
35 m/s). For problem-free signal shaping at high part speed, the devices feature adjustable pulse stretching of the output
signal. Due to their construction, the devices are virtually insensitive to environmental influences. In addition, the
inductive operating principle renders them highly insensitive to dirt. Connection is via a S12 connector.
Contrinex photoelectric fork sensors are available in various sizes, and consequently suitable for a
large range of applications. They feature a robust, compact and universally mountable housing. They work according to the
principle of through beam sensors, replacing them whereever long operating distances are not required. Their advantage,
compared to solutions with separate emitter and receiver, lies in their simple installation. Only one component has to be
installed, there is no need for mechanical alignment, and the wiring is less demanding.
These devices are suitable for the whole field of assembly technology. The sensors are available with
clocked or non-clocked light. Their features differ with respect to response time and ambient light limit. The very short
response time permits safe detection at high target speeds, even of small parts. All devices are equipped with sensitivity
For fast field checks of various sensor types (inductive, capacitive, photoelectric and ultrasonic) 10
to 30 V.
- Suitable for PNP and NPN devices, N.O. and N.C. versions
- Automatic PNP/NPN recognition
- LED and acoustic indicators
- Built-in steel target (non-standardized) for checking inductive sensors
- Power supply from a single 9 V battery (type IEC 6LR61)
- LED battery-state indication
- Built-in step-up voltage converter
- Automatic switch off after approx. 30 sec of non-use
Capacitive Label Sensor
Contrinex capacitive label sensors feature simple adjustment, reliable operation, and a
compact, robust housing. They are used for the detection of labels, adhesive joints, tears and double sheets.
Due to their capacitive operation principle, they are able to detect even transparent materials without
The material to be detected, e.g. labels on a support strip, is placed in the sensor's
slot. Strip position and label shape are insignificant, considerably facilitating the use of these devices.
The sensitivity is easily and quickly set by means of teach-in. This results in optimum
adjustment and problem-free material changeability. The housing can be easily separated by loosening two
socket-head screws, which enables cleaning without dismantling the base and without the need for
Capacitive Label Switch
For cylindrical sensors from & 3 mm to M30.
The mounting clamp comes in one-piece construction.
Simple installation, reduced labor, reduced downtimes.
The oblong holes permit clamp adjustment.
The clamps remain in place even when sensors are exchanged.
Loosen screw, exchange sensor, tighten screw - finished!
Some mounting clamp types feature a limit stop.
This allows sensors to be exchanged without the need for readjustment.
Our industrial factory automation supplies warehouse in Boise, Idaho stocks some CONTRINEX products enabling us to
further assist you in finding the correct sensors for your application in the USA. Whether we have CONTRINEX Sensors in stock
in Boise, Idaho or need to ship direct from CONTRINEX to any USA cities; Clearwater Tech can get proximity switches to you
fast and save you money! It will be very helpful if you have the CONTRINEX proximity switch part numbers ready, then our sales
representatives can provide you with a pricing and availability quote for Ultrasonic Sensors that you are looking for in
seconds. If you do not have the part numbers for Inductive Proximity Switches, our application engineers will be able to help
you figure out the part numbers and get the price quote to you as soon as possible.
Can't find a part number?
The Robust Metal Sensors are a complement to Banner's
already popular and extensive line of miniature sensors. An extended sensing range and tiny stainless
steel housing make them an ideal replacement for range limited proximity sensors, and for areas previously
only accessible to remote sensors and fiber optic cable. The tightly collimated beam and selfcontained
housing of the VSM are suitable for very precise, small object
RTFR 3B Model is suited for scanning distances
of up to 200 mm. Fading suppresses objects in the background. An economical scanner for standard
applications in which there are no special requirements on background suppression. If larger ranges are
needed for standard applications, Leuze Electronic's RTR 3B energetic diffuse reflection light scanner
with scanning range adjustment is the best choice.