Sensors & Transducers


Safety light curtains as linked versions

February 2015 Sensors & Transducers

Leuze MLC 500 safety light curtains are now also available as linked versions. Rigid L and U-shaped connections as well as variants with flexible cable connections can be used. The host-guest variants are Type 4 devices that provide reliable protection without dead space and with maximum system availability. A particular feature is that they are unusually slim (29 mm x 35 mm) and extremely sturdy due to the slightly set back front screens, reinforced side walls and metal end caps. Installation of the MLC safety light curtains is easy due to the large variety of possible mounting brackets.

The series includes the newest generation of sturdy Type 4 safety light curtains. Three function classes – Basic, Standard and Extended – enable the most efficient use of devices from simple standard applications to complex controlled special safeguarding processes. The devices can be used universally, due to metal end caps, a flexible fastening concept and the option of form-locking installation. There are also variants which have an AIDA-compliant pin assignment.

The basic version of the Type 4 safety light curtains provides the most important functions such as range reduction on the transmitter, reversible transmission channels, a LED display and automatic start/restart interlock. Features include the prevention of mutual interference of the sensors by selectable transmission channels and range reduction, if applicable.

The standard version of these Type 4 safety light curtains features a start/restart interlock (RES) and contactor monitoring (EDM) for increased performance, in addition to being simple to handle and integrate into existing systems. Handling is optimised due to function selection without PC as well as LED and seven-segment display with an integrated three-zone alignment aid.

Whenever additional control functions are required, the Leuze MLC 530 extended version is the perfect choice. It features five different operating modes, integrated muting function and three different scan modes. Device linking enables the construction of two-channel, contact-based safety circuits as well as serial connections of several devices with safety-related switching outputs (OSSD).

So-called host-guest devices enable the combination of access guarding or point of operation guarding with area protection. This makes it possible, for example, to eliminate additional measures such as guards to protect against stepping behind machines. Furthermore, the MLC HG devices offer all of the advantages of the MLC 500 series while MiddleGuest devices can be used as the middle segment of a three-link chain. The MLC 520 Ex series is certified for use in potentially explosive areas, namely Group II, Category 3, Zone 2 (gas) and Zone 22 (dust).

For more information contact Gerry Bryant, Countapulse Controls, +27 (0)11 615 7556, [email protected], www.countapulse.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Next-generation condition monitoring
Sensors & Transducers
The next generation Sitrans MS200 multisensor from Siemens is setting new standards in condition monitoring.

Read more...
Telco sensors for blocked/empty chute detection
Sensors & Transducers
Telco sensors overcome the problems of contaminated environments through powerful high-performance infrared sensors that ensure penetration of harsh pollution and guarantee reliable detectio

Read more...
Cleaning solutions for optical sensors
Endress+Hauser South Africa Sensors & Transducers
Achieving accurate and continuous process visibility requires reliable sensor performance, even in challenging media. Endress+Hauser’s CYR51 mechanical cleaning unit addresses these challenges by providing stable, automated cleaning of turbidity and UV-Vis absorption sensors.

Read more...
Next-generation gas meter module
Sensors & Transducers
Sensirion has launched its new gas meter module combining a low-power consumption mode, future-ready compatibility and seamless integration, all within the same compact form factor.

Read more...
Adjustable proximity sensor with five metre range
Gail Norton Instrumentation Sensors & Transducers
The Telco line of photo-electric eyes have the accuracy and reliability you need.

Read more...
Food safety – a matter of weight
Sensors & Transducers
Weighing systems play a key role in ensuring product quality in food production, complying with legal requirements and avoiding product recalls. The Minebea Intec MiNexx portfolio has been specially developed to meet these requirements.

Read more...
Telco sensors in the paper and pulp industry
Gail Norton Instrumentation Sensors & Transducers
The paper and pulp industry poses a major problem for most photoelectric sensors. Telco Sensors has overcome this with its powerful and high-performance photoelectric sensors, ensuring penetration of thick and harsh pollution while guaranteeing reliable detection.

Read more...
Leaders in sensor technology
Gail Norton Instrumentation Sensors & Transducers
A new addition to the Telco Sensors range is the adjustable Proximity sensor, with a range up to 5 metres.

Read more...
Cutting-edge sensor technology
Endress+Hauser South Africa Sensors & Transducers
The advantage of Endress+Hauser’s Memosens technology is that digitised measured values and sensor information are transmitted via a non-contact connection from the sensor to the cable, and as a digital signal to the transmitter.

Read more...
Miniature inductive sensors
ifm - South Africa Sensors & Transducers
The inductive IY/IZ type sensors from ifm are used in various industrial areas where space is limited.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved