The CYCLOPS X – Purge Controller, SM Version is certified for use in Zone 1 hazardous areas, which monitors purge pressure, exhaust vent flow, and controls purge time, power connection and disconnection.
The CYCLOPS X – Purge Controller provides local and remote objective evidence of positive minimum overpressure within the enclosure and enclosure’s exhaust flow. When the monitored enclosure reaches a required minimum overpressure above the referenced atmospheric pressure surrounding the enclosure and the exhaust port is registering satisfactory flow, CYCLOPS’s green LED will begin flashing. An automatic purge time may then begin. The purge time can be set from one to ninety-nine minutes, which is set by the customer to allow at least five-volume exchanges for Zone before power is automatically connected by the CYCLOPS X – Purge Controller to the equipment within the enclosure being monitoring.
After the automatic purge time has elapsed, the local green LED indicator will stop flashing and go continuous. Indicating that the monitored enclosure minimum overpressure is being maintained. Up to 25 Amps of power for 115 VAC units and 12.5 Amps of power for 230 VAC units will then be automatically applied by the CYCLOPS X – Purge Controller, eliminating the need for an additional explosion proof enclosure with a solid-state relay.
The CYCLOPS X – Purge Controller continuously compares the minimum overpressure inside the monitored enclosure with respect to the atmospheric pressure surrounding the enclosure preventing the ingress of flammable or combustible materials in the surrounding atmosphere from entering into the enclosure. If the minimum overpressure should go below its required setting or exhaust port flow stops during the purge cycle, the LED will go from steady state of green to a steady state of red, power will be disconnected from the unprotected equipment inside the enclosure and if used an alarm for either situation, will be sent to the remote point being monitored.
Other features of the CYCLOPS X – Purge Controller are a Maintenance Switch and Power Disconnect Bypass Switch. The Maintenance Switch is used when equipment within the enclosure being monitored by the CYCLOPS X – Purge Controller requires electrical power for repair or maintenance. After the area surrounding the enclosure has been tested and is known to be non-hazardous. The CYCLOPS X – Purge Controller’s Maintenance Switch can then be put in maintenance mode and power will then be connected to the equipment for repair or maintenance. During this time the local LED will flash red and if used, alarm to its point of remote monitoring. When repair or maintenance has been completed. The equipment’s enclosure door can then be closed and fastened. Minimum overpressure can then be restored to the enclosure and if satisfactory, the Maintenance Switch when turned to normal operation, the equipment’s power will remain connected.
The Power Disconnect Bypass Switch is used to override the disconnecting of power to the electrical equipment within the enclosure being monitored by the CYCLOPS X – Purge Controller for installations where immediate loss of power would result in a more hazardous condition. Power to the electrical equipment within the enclosure being monitored by the CYCLOPS X – Purge Controller shall be permitted to be continued for a short period. During this time the local visual LED will be steady state green and blinking red.
The enclosure exhaust vent is an integrated part of the CYCLOPS’s housing. The CYCLOPS X – Purge Controller mounts directly to the enclosure being monitored. This means no additional holes, sheet metal, or tubing for plumbing is required for installation of the CYCLOPS X – Purge Controller. The CYCLOPS X – Purge Controller comes in 316 stainless steel, 14 gauge with voltage options of 115 VAC up to 25 amps and 12.5 amps for 230 VAC.