Overtemperature Alarm Protection - Thermo Scientific BF51841C Operation Manual

Maintenance
Over-Temperature Alarm Protection (OTP)
Over-Temperature Alarm Protection (OTP)
The Load Over-temperature Alarm. System indicates if the temperature inside the
chamber exceeds the load alarm setpoint.
To insure proper operation, this alarm system must be checked at least once a
month.
To test the load over-temperature alarm, complete the following steps:
1. Operate the furnace without a product load at your normal operating
temperature.
2. Readjust main temperature control to a temperature above the load alarm
setting (refer to
3. Observe the unit closely until the load alarm trips, indicated on the controller
beside the A1 label.
4. Reset the main temperature control to normal operating temperature. Once the
unit cools below the alarm setpoint, the A1 indicator will go off.
9-10
Section "Setting the Temperature").
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