How to use
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Use mouse wheel to zoom graph vertically. Hold down Shift key while using mouse wheel to
zoom graph horizontally. Window has to be active for mouse wheel to work, click inside graph
area if window is inactive (if wheels aren’t working).
Dragging graph with RM pressed is an alternative way to zoom graph (to example, with the
mouse without wheel).
Pos: 9.4.20 /00 25 Überschriften /ELTRA 1.1 Übersc hriften/11 H eater @ 7\m od_13842675312 89_9.docx @ 52336 @ 2 @ 1
7.10 Heater
Pos: 9.4.21 /00 10 ELTRA/0005 so ftware_help/Tga /How to use /Heater @ 7\ mod_1384267 507377_9.doc x @ 52325 @ @ 1
Heater is a unit responsible for furnace temperature regulation. All immediate values of heater
can be seen in the Heater window.
Software uses PID regulation to reach setpoint temperature and to hold it.
Setting up PID for the first time
When running software for the first time, a special warning is given during initialization Phase,
because PID Configuration setting initially is blank.
To setup PID:
1. Login as Administrator.
2. In the Configuration window click edit button for PID setting, Edit PID window will
appears.
3. Click Import button and select proper PID set for the instrument.
4. Confirm with Ok button.
Fig.
: Old and default thermocouple
Old (capsulated) thermocouple, use old.pid
Default thermocouple, use default.pid
PID regulation
The PID regulator is tuned in a way that would overshoot the set point. This results in a very
quick heating up phase. Since overshoot is not allowed and desired, the special procedure
takes place.
Setpoint is initially set to be (setpoint – threshold) value, this is called heating phase. When this
temperature is reached, there will be an expected overshoot. Threshold must be chosen in a
way to be equal or slightly higher than the overshoot. After that software will wait until heating
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