Setup mode
Chapter 4
OPERATION MANUAL
V1.2.0en/12.05.15//14.06
Liability for errors and misprints excluded.
Unistat® T300 Series
47
4.2.6
Optimum control parameters for optimum temperature control
If the adjustment of the temperature does not correspond to the quality of the illustrations shown
above, you can adjust the control parameters. With Huber temperature control units, there are
various ways of finding the optimum control parameters. Depending on the facilities of the tempera-
ture control unit, you can choose the following processes:
▪
Use ex-factory parameters
(standard)
▪
Estimate Control Parameters
(only useful for bath thermostats with E-grade Basic and
internal control)
▪
Fast Identification
(from E-Grade Exklusiv)
▪
With Preliminary Test
(Unistat from E-Grade Exklusiv)
4.2.7
Sub-category: “Select auto/expert mode”.
Use of the “Expert mode” without a thorough knowledge of I&C technology.
MATERIAL DAMAGE TO THE APPLICATION
Only use this mode if you have a thorough knowledge of I&C technology.
Here you can select whether the control parameters are set in the “Automatic mode” or in the
“Expert mode”. To enter settings in “Expert mode” requires in-depth knowledge of process measur-
ing and control technology. Incorrect or insufficient settings can severely impair the function of the
temperature control unit.
In “Expert mode”, “Configuration auto” is deactivated and only “Configuration manual” is possible.
This is how to change mode:
PROCEDURE
Go to the “Categories Menu”.
Tap on the category “Temperature Control”.
Tap on the category “TAC/Manual”.
Tap on the sub-category “Select auto/expert”.
Choose between the dialog entries “Automatic mode” and “Expert mode”.
Confirm your choice by tapping on “OK”.
4.2.8
Sub-category: “Configuration auto”
You can only select this menu entry if “Automatic mode” is set.
4.2.8.1
Sub-category: “Find parameters”
4.2.8.1.1
Dialog entry: “Fast Identification”
In relation to the little effort, the “Fast Identification” of the control process provides you with very
quick and reliabe adapted control parameters. These control parameters achieve a fast and very
accurate tuning performance. Only in very rare cases require Unistats the more complex but also
more precise identification “With Preliminary Test”.
Do not make any changes to the temperature control unit and to the application (temperature
control unit / external application) after your system has been started. Changes include e.g. filling /
draining process chamber, changing the mixer speed, change of position of Pt100 process sensor
etc.
