Operator Interfaces, Switches & Relays


Placing critical visual alarms in hazardous areas

May 2017 Operator Interfaces, Switches & Relays

Local panels in plants perform vital safety functions and in hazardous locations, local panels must perform without compromising the integrity of the area. Annunciators have a primary safety role in local panel design to provide immediate alert and response to danger.

Based on the field proven Omni16 Alarm Annunciator range, the Omni16 C1480B-EX is an intrinsically safe backlit version developed for use in Zone 2 hazardous environments such as those of the chemical and petrochemical industries. The annunciator accepts 16 potential free inputs and displays a visual warning when a critical alarm is triggered. Since the annunciator is intrinsically safe, there is no danger of igniting any combustible gas or dust that may be present in the air.

The alarm sequences for the 16 inputs are configured by software or DIP switch with a choice of 27 standard options. Four output relays can be configured as group alarm, horn output and watchdog with a change-over contact at the terminals. The group alarm can be set to one of four functions, Follows Input, Follows Alarm, Multiple Reflash, Ringback Horn. The Omni16C can be combined into alarm systems up to 256 points.

The instrument has been certified by SABS as equipment category Ex ic in accordance with international standards IEC60079-0 and IEC60079-15. C1480B-EX is suitable for use in hazardous areas classified as Zone 2, gas and dust, propane to hydrogen.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Using existing cabling to create a new industrial LAN
November 2020, Omniflex Remote Monitoring Specialists , Fieldbus & Industrial Networking
Omniflex’s Conet technology allows businesses to repurpose existing cabling to create a new industrial local area network.

Read more...
Novel sensor detects oversized ore
November 2020, Omniflex Remote Monitoring Specialists , Sensors & Transducers
Advanced sensors estimate the size of rocks in truck trays in real time.

Read more...
Programmable multicolour indicator
November 2020, Turck Banner , Operator Interfaces, Switches & Relays
The K30 Pro Series bright, uniform indicator light is a 30 mm illuminated dome that provides dynamic control.

Read more...
Omniflex enables mine water quality
October 2020, Omniflex Remote Monitoring Specialists , System Integration & Control Systems Design
Water licences carry a ‘Burden of Proof’ that the licence holder will not harm the environment or the water system through its activities. This covers the use of water from the system and the responsible ...

Read more...
Safety rope limit switch
September 2020, Anglo Allied Engineering , Operator Interfaces, Switches & Relays
Bernstein has introduced a new rope pull switch that provides safety for conveyor belts or machines.

Read more...
Pump control at a distance
September 2020, Omniflex Remote Monitoring Specialists , Industrial Wireless
The ability to control a pump remotely over distance and without using wires is simple using Omniflex Teleterm Radio RTUs over a licence free band, avoiding administration of radio frequency band use. ...

Read more...
Remote alarm monitoring made simple
May 2020, Omniflex Remote Monitoring Specialists , IS & Ex
Alarms are normally managed on site by personnel charged with supervising the plant/facility and ensuring the continuity of the operation. Alarms are implemented to help manage operations and mobilise ...

Read more...
Powerful dialogue modules for mobile machines
April 2020, ifm - South Africa , Operator Interfaces, Switches & Relays
The new dialogue modules from ifm electronic have been developed for use in cabins and outside vehicles. Thanks to a high protection rating and optical bonding, they are optimally protected against moisture. ...

Read more...
Multifunction pendant improves efficiency
Technews Industry Guide: Maintenance, Reliability & Asset Optimisation 2020, Turck Banner , Operator Interfaces, Switches & Relays
The Direct Select from Turck Banner makes it easy to communicate the critical information staff need to complete tasks. This versatile operator interface can be used to send and receive requests, acknowledgements, ...

Read more...
Wireless control of pumps
February 2020, Omniflex Remote Monitoring Specialists , Industrial Wireless
The ability to control a pump remotely over distance and without using wires is simple using Omniflex Teleterm Radio RTUs over a licence free band, avoiding administration of radio frequency band use. ...

Read more...