Fisher Scientific Isotemp 800 Series, Руководство пользователя

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6. Enter the value by pressing the Menu Key. The
controller will automatically return to the Control
Mode.
When the above parameters are set equal to that of the
communicating device, the control will immediately begin
logging. The control logs data in the following format:
Actual Temperature, Set Temperature, Units, Alarm State
Example: 148, 150, C, Off
High Alarm
The 800 Series controller features a deviation alarm
which alerts the operator and interrupts heater power
whenever the actual oven temperature exceeds the set
temperature by more than 5°C (9°F).
If the actual temperature exceeds the alarm limit, the
alarm indicator will light and the Set Display will flash “HI.”
The reference point for the alarm is the set temperature
(Set Display). Any change in the set temperature will
cause a corresponding shift in the alarm temperature.
The alarm will continue to activate until the actual temper-
ature drops to within 2°C (4°F) of the set temperature or
until the set temperature is increased to within 2°C (4°F)
of the actual temperature.
Open Sensor
During control or program run mode, if the Actual Display
indicates “oPEn” the control is experiencing an open ther-
mocouple condition.
The oven will not heat in this con-
dition. To clear this condition, determine if the thermo-
couple is disconnected or bad. To replace a thermocou-
ple, see the section on
Replacing the Thermocouple.
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PERATION