Thermo Scientific BF51728 Installation And Operational Manual page 47

| Main Controller: 1x8 & 5x16 Segment Programmable
Chapter 6
|
6-46
330985H01
To Operate the Programmer
Operation Action
To Run a program Press and quickly
release
To Hold a program Press and quickly
release
To Reset a program Press and hold
second
Program ended
Programs can also be operated from the 'T.STAT' parameter found in the level 1
parameter list.
OR
NOTE
The program ramp rate is designed to reduce the heating rate or cooling rate that

the furnace normally exhibits. When not using this feature, the furnace will
operate at its maximum heating and cooling capability.
When the program ramp has ended or has been reset, the furnace will continue

to maintain set point temperature. It will not cool to ambient temperature unless
the set point is set to ambient temperature by the program or by the operator.
When a step change is required, the ramp rate should be set to 'OFF'.

Where ramp/dwell pairs are not required, the ramp rate should be set to 'OFF'

and the target set point, TSP, the same as the preceding segment.
TIMER END- when the end type is SP2, Timer END does not occur until the ramp

is complete or SP2 is achieved. It is more usual to use a DWELL (default) or
RESET end type.
The program will start from the measured temperature. On recovery from power

failure, the program will automatically run at the last ramp rate from the current
measured temperature.
Indication
Beacon RUN = On
Scrolling display - TIMER RUNNING
+
Beacon RUN = Flashing
Scrolling display - TIMER HOLD
+
Beacon RUN = Off
+
If End Type = Off
for more than 1
then OFF will be displayed at the end
of the program
Beacon RUN = Off
SPX On if End Type = SP2
Scrolling display – TIMER END
OR
1100°C Box Furnace