Freezer Backup Alarm safeguards low-temperature products.

Press Release Summary:

Combining alarm systems and LN2 injection system, Model CA5000 provides security for products at temperatures down to -65°C. Programmable alarm, control set points, and alarm delay times are standard, and parameters stored in non-volatile memory are maintained even when power is lost. When malfunction occurs, and freezer warms above set point, user-defined amount of LN2 is injected into freezer. Internal battery with charger keeps alarm running for at least 24 hr after power outage.

Original Press Release:

Introducing: Model CA5000-N LN2 Backup Alarm System

Model CA5000 freezer back-up alarm system is a unique combination of field proven, ultra-reliable alarm systems and a LN2 injection system; providing security for your products to ultra-low temperatures.

It offers user-programmable alarm & control set points & alarm delay times. Parameters are stored in non-volatile memory, and are maintained even when power is lost.

The customer supplied LN2 is ready to be injected into a freezer chamber. When a malfunction occurs and the freezer warms above the user-defined set point, a user-defined amount of LN2 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.

  • An internal battery with charger keeps the alarm running for at least 24 hours after a power outage.
  • "BAT" indicator warns of a disconnected or low backup battery condition.
  • Backup time of at least 48 hours on one 65 liter cylinder of LN2 at -65°C set point.
  • Independent user-programmable controls for system alarms and LN2 injection.
  • Visible and audible indicators for system status.
  • Multiple programmable alarms available to minimize nuisance or false alarms.
  • Relay output for central alarm systems or automatic dialers.
  • A door safety interlock switch prevents LN2 injection while freezer is being accessed.

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