Thermo Scientific 815 Operating And Maintenance Manual page 20

Section 3
Preventive Maintenance
Caution If the default low temperature alarm setpoint (1°C above setpoint)
is increased, the new alarm temperaure value will remain valid until power
is removed from the unit (turning off the power switch, unplugging or
power failure). When power is restored, the alarm setpoint will revert back
to the default.
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Note Software Version 2.00 and later has a 30 minute delay for the low
and high alarm to avoid nuisance alarms caused by door openings.
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Thermo Scientific Refrigerated Incubator 3-3