FBXXX Field Temperature Blocks
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5.2.3.3.1.4 GRAD 1
The GRAD 1 parameter is ratio for the top zone heater control for the axial gradient
calibration at the 1st calibration point.
5.2.3.3.1.5 GRAD 2
The GRAD 2 parameter is ratio for the top zone heater control for the axial gradient
calibration at the 2nd calibration point.
5.2.3.3.1.6 GRAD 3
The GRAD 3 parameter is ratio for the top zone heater control for the axial gradient
calibration at the 3rd calibration point.
5.2.3.3.1.7 GRAD 4 (FB660 only)
The GRAD 4 parameter is a ratio for the top zone heater control for the axial gradient
calibration at the fourth calibration point.
5.2.3.3.1.8 GRAD 5 (FB660 only)
The GRAD 5 parameter is a ratio for the top sone heater control for the axial gradient
calibration at the fth calibration point.
5.2.3.3.1.9 CALDATE
The CALDATE parameter is the calibration date for the heat source. Use the arrow
keys to enter the calibration date in the format selected in DATE FORMAT.
5.2.3.3.2 CONTRL
The CONTRL (CONTROL SETUP) menu is used to access the controller parameters.
5.2.3.3.3 TEMP PB
The TEMP PB parameter is the main zone proportional band and the gain in °C that
the instrument’s proportional-integral-derivative (PID) controller uses for main zone
control.
5.2.3.3.3.1 TEMP INT
The TEMP INT parameter is the main zone integral, which is the integration time in
seconds that the instrument’s PID controller uses for main zone control.
5.2.3.3.3.2 TEMP DER
The TEMP DER parameter is the main zone derivative, which is the derivative time in
seconds that the instrument’s PID controller uses for main zone control.
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