Freezer Backup Alarm System has liquid CO2 injection system.

Press Release Summary:

Offering user-programmable alarm and control set points and alarm delay times, Model CA5000 maintains liquid CO2 at high pressure, and injects user-defined amount of liquid CO2 into freezer when malfunction occurs and freezer warms to above user-defined set point. Internal battery with charger keeps alarm running for 24 hr after power outage, and door safety interlock switch prevents CO2 injection while freezer is being accessed. Multiple programmable are alarms available.


Original Press Release:

Introducing: Model CA5000 Liquid CO2 Backup Alarm System

Model CA5000 freezer back-up alarm system is a unique combination of field proven, ultra-reliable alarm systems and a liquid CO2 injection system; providing security for your products to ultra-low temperatures. It offers user-programmable alarm and control set points and alarm delay times. Parameters are stored in non-volatile memory, and are maintained even when power is lost. The customer supplied liquid CO2 is maintained at high pressure, ready to be injected into a freezer cabinet or system. When a malfunction occurs and the freezer warms above the user-defined set point, a user-defined amount of liquid CO2 is injected into the freezer. The CA5000 is very simple to operate: plug in the unit, place the probe in the freezer chamber to be monitored, and the display will show the temperature of that location. FEATURES: o An internal battery with charger keeps the alarm running for at least 24 hours after a power outage. o "BAT" indicator warns of a disconnected or low backup battery condition. o Backup time of at least 8 hours on one standard cylinder of CO2 at -60 °C set point. o Independent user-programmable controls for system alarms and liquid CO2 injection. o Visible and audible indicators for system status. o Multiple programmable alarms available to minimize nuisance or false alarms. o Relay output for central alarm systems or automatic dialers. o A door safety interlock switch prevents CO2 injection while freezer is being accessed. www.hampshirecontrols.com

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