Light curtain for elevators
October 2003
Sensors & Transducers
Telco's new SpaceGuard SG1 is an advanced light curtain series that provides a problem free protection of passing passengers in demanding elevator applications.
A complete system consists of a self-contained, multibeam, infrared transmitter, SGT and a receiver, SGR. Control circuitry, electronics and optical components are all integrated into the detector profiles enabling direct connection to a door controller or lift operator without the need of a separate power supply/controller unit.
Two models are available: a high performance 40 channel model, with 194 cross scanning beams and a cost effective 20 channel model with 94 cross scanning beams, both of which are housed in a sturdy aluminium, slimline, 9,8 mm profile with an active height of 1800 mm, 4 m sensing range, 10-30 V d.c. supply voltage with either an NPN or PNP transistor output. A dense sweeping curtain of cross scanning beams remains until the fully closed position of the elevator car doors, in both static and dynamic installations.
No on-site set-up or adjustment is required. The SG1 series will automatically adjust to its operating conditions and surroundings during and after installation, thus achieving an optimal, uniform performance by automatically compensating for misalignment and contamination during operation.
When the time-out feature is enabled, up to four non-adjacent channels may be ignored if obstructed for 60 s or more. If a time out channel resumes operation, the time-out function will automatically be cancelled 3 s after re-establishment, ensuring safe and reliable operation until the vandalised unit is replaced. A 24 V d.c. PNP alarm output, which is activated in case of system failure or time-out, and IP67 epoxy encapsulation, are optional.
For more information contact Telco Gail Norton Instrumentation, 031 701 4861.
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...
printer friendly version