Honeywell Analytics offers Addressable, Fully Programmable Metro Controller. Honeywell Analytics products are manufactured in accordance with UL 2034, BS 7860:1996, and EN-50291:2001 and ISO 9001:2000. The Addressable, Fully Programmable Metro Controller falls under the category of discontinued products. This Metro Controller is capable of monitoring up to 250 remote addressable flammable and toxic Metro gas detectors. Together they form the Metro system designed to protect people from flammable and toxic gas hazards commonly found in car parks, tunnels or other areas where automotive vehicles may operate.
The Metro Controller provides automatic control of ventilation systems that maintain gas levels at or below a safe level. Where gas levels rise above maximum exposure limits, the Metro system raises alarms to instigate site evacuation. By integrating the gas monitoring systems and ventilation control, not only are harmful gases kept to safe levels but building running costs are also minimized. The system allows for two separate radial circuits up to 1 km [3000 feet] long using industry standard cable. Each circuit provides power and communications for up to 125 addressable detectors. The AC system design ensures no booster power supplies required to achieve long cable runs, thus greatly simplifying the system specification, installation and operation. With up to 250 addressable gas detectors fitted to a system, each with 4 alarm levels, up to 1000 alarm events can be detected by the Addressable, Fully Programmable Metro Controller.