Freezer Backup Alarm safeguards low-temperature products.December 17, 2010 -
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.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Hampshire Controls Corp.
One Grove St., P.O. Box 516
Dover, NH, 03821
USA
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.
FEATURES:
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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