Sensors & Transducers


Sensors with contamination immunity

August 2001 Sensors & Transducers

Being familiar with the conventional drawbacks of photo-electric systems, Telco has created a concept to include the following key features:

* Small physical outline.

* Immunity to contamination.

* Insensitive to impact and vibration.

* Easy alignment.

* Wire range of applications.

The transmitter and the receiver may be placed facing each other to form a through-beam system or in parallel to form a reflex or a proximity system.

Due to the small physical outline (10 x 30 mm diameter), the sensors can be mounted in places previously inaccessible.

With IP67 class sealing, the sensors can be applied to processing systems subject to high levels of humidity. Applications in the transportation industry, in filling and packing machines, sorting and measuring set-ups', wood, plastics and metal processing lines are all accessible using Telco sensors.

The high level of emitted light prevents these sensors from being influenced by even high levels of dust and dirt present in many industrial environments. In through-beam mode the range of operation is up to 3 m.

Telco PA systems consist of a photo-amplifier and a remote set of a transmitter and a receiver. From the extensive range it is easy to identify the best suited combination for every application.

The power line can be 230-240 V a.c., 115 V a.c., 10-30 V a.c./d.c. supplied from a standard 11-pin socket. Connection of remote sensors is established by two-wire cables of any length up to 50 m.

Telco offers just-in-time deliveries worldwide, with service before, during and after sales by professional teams of application consultants.

Telco Gail Norton Instrumentation

(031) 701 4861

[email protected]



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Smart alternative for float switches
ifm - South Africa Sensors & Transducers
With the LI level sensor, you can reliably detect leakages and point levels on a permanent basis. The capacitive measuring system has no moving parts. Malfunction or maintenance issues due to deposits on the mechanical parts are therefore eliminated.

Read more...
Telco sensors in the pulp and paper industry
Gail Norton Instrumentation Sensors & Transducers
The pulp and paper industry poses a major problem for most photoelectric sensors. The high level of contamination in these dusty, dirty and grimy environments makes it impossible for most competing sensors to operate and sense reliably and efficiently.

Read more...
Precision acoustic imagers
Comtest Sensors & Transducers
To help users identify and localise ‘mechanical areas of interest’ within short timeframes, Comtest has added a unique new feature to Fluke’s ii910 precision acoustic imagers.

Read more...
Efficiency and precision with IO-Link sensors
RS South Africa Sensors & Transducers
RS South Africa has its own brand known as RS PRO, which offers a choice of over 88 000 products across all industries and technologies. The guaranteed quality and breadth of this range make RS PRO the smart choice for your business.

Read more...
Smart alternative for float switches
ifm - South Africa Sensors & Transducers
With the LI level sensor, you can reliably detect leakages and point levels on a permanent basis. The capacitive measuring system has no moving parts. Malfunction or maintenance issues due to deposits on the mechanical parts are therefore eliminated.

Read more...
Optical fork sensor series
Gail Norton Instrumentation Sensors & Transducers
The OFS series consists of self-contained optical fork sensors that are housed in a durable, U-shaped aluminum housing, which operates in through-beam mode.

Read more...
In-line process transmitter to optimise sterile processes
WIKA Instruments Sensors & Transducers
The new model DMSU22SA in-line process transmitter from WIKA helps to optimise sterile processes in the pharmaceutical and food industries, with less energy consumption, less cleaning effort ,and more safety.

Read more...
Automated clean-in-place
Endress+Hauser South Africa Sensors & Transducers
A clean-in-place (CIP) process is integral to a food and beverage producer’s responsibility to deliver safe, high-quality products to consumers. However, as industries worldwide shift focus towards sustainability, CIP procedures face new challenges.

Read more...
Signal conditioning is the protective armour between plant and field
Omniflex Remote Monitoring Specialists Sensors & Transducers
Measurement and control of physical properties are the foundation of all critical industrial technologies. Ian Loudon, international sales and marketing manager at remote monitoring specialist, Omniflex explains the challenges of industrial signal conditioning and the importance of safety engineering.

Read more...
Precise detection of complex rotational movements
Beckhoff Automation Sensors & Transducers
The EP3751-0260 EtherCAT Box module by Beckhoff connects an acceleration sensor with an inertial measurement unit - a gyroscope. This provides accurate detection of acceleration and rotational motion in addition to shock, vibration and tilt measurement, both as preprocessed values and as raw sensor data.

Read more...