Model CA5000-C02: Product Information.


Model CA5000 C02: Freezer Temperature Monitor Alarm with Liquid CO2 Backup Injection
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Key Features:

  • NIST calibrated/traceable sensors and system.
  • NIST certificate provided.
  • 10-hour minimum ULT freezer back-up cooling time using one, 50-pound cylinder of CO2 at -60 °C.
  • 48-hour battery back-up in case of main power failure.
  • Digital display of interior freezer temperature.
  • User programmable alarm set-points and coolant injection rates.
  • Relay for connecting to any auto dialing or remote alarm.
  • Door safety interlock switch input to prevent injection of coolant while door is open.
  • Large capacity maintenance-free battery with charge status indicator.

Product Overview:

The CA5000 C02 is the most complete ultra-low temperature freezer C02 backup injection system for extreme emergency operational situations in compressor-based and sterling piston ultra low temperature freezers. Besides providing user-adjustable cryogenic injection, the monitoring system is NIST claibrated and traceable. The unit provides a unique combination of freezer chamber temperature monitoring, alert status indication (and an alarm output), controlled rate (and temperature) cryogenic backup injection, and battery back-up operation.

NOTE: Click here for our model CA5000-N if you need controllable LN2 backup injection for your ULT freezer system.

Should a serious mechanical or a long-term power failure occur, the CA5000 C02 will automatically activate its backup injection cooling capability after a chamber temperature rise alert is indicated (and after a user-designated delay period). Once initiated, C02 coolant is directly injected into the freezer or cooling cabinet using the auxiliary gas injection ports provided on all ULT freezers.

The peace of mind and higher level of cooling operation our systems offer is critical when storing vaccines (like mRNA vaccines), virus samples, biopharmaceuticals, genetic materials and other materials that MUST be continuously maintained at their specific ultra low temperature ranges.

The system is simple to program and includes the ability to set and monitor freezer chamber temperature, set alarm temperature parameters, set alarm delay periods, set backup cryogenic injection initiation conditions and C02 injection rates (for emergency control of chamber temperature).

For operational safety, the system includes a door safety interlock switch (to disable gas injection when the main door is open) and all programmed operating parameters are stored within a non-volatile memory. The system is "made in the U.S.A." at our Dover, NH factory.

Note: We supply the tubing from our unit to the freezer. Tubing between the gas supply and our system must be connected by the user and/or facilities engineers.

Available Options: