OPERATION MENU’S
High/Low limits:
The high and low limits are used to allow some temperature deviation around the setpoint. If
the actual temperature falls outside these limits a temperature alarm is generated. The limits
must be in the range 0.0 to 25.5
C where 0.0 means NO alarm limit set.
GAIN:
The gain is a amplification factor in the PID temperature control Loop and can be increased
if a particular temperature zone does not reach its setpoint. Default setting is 100%, the range
is 0% (means no power output) to 255% (maximum amplification).
Control:
The control section of the normal (process) temperature table defines the type of
thermocouple that is used as input signal (spike or paddle) to the PID temperature control
loop.
In addition, the behaviour of the different temperature control zones can be modified.
Default the temperature zones are independently controlled to provide the fastest result. If so
desired the center zone can be used as master and the outer zones will follow as slave when
the type of control is set to master/slave.
To change the type of control on the furnace, the <CONTROL> key must be pressed, the
cursor will move to the first input behind “CONTROL”. This will enable the spike (press
<S>) or paddle (press <P>) thermocouples to be selected for control. Selecting one of these
will allow independent control (press <I>), or master/slave control (press
<M>) to be
selected. The control can be left unchanged by pressing <ESC> or the cursor control key
down < >.
6.2.2.3
Profile Temperature Table
Figure 6-20 Profile Temperature Table
The Profile temperature table is used to increase temperature accuracy for process runs.
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OUCHSCREEN
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EFERENCE MANUAL
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