Controlling the Column TemperatureTemperature Control
Controlling the Column Temperature
The Dionex column compartments provide temperature control of the column (for details on available temperature ranges, refer to the operating instructions of the respective TCC model).
To change the temperature during operation
As a rule, a column oven Panel Tabset or Control Panel provides control elements for reporting the current temperature, as well as for setting a new nominal temperature or upper and lower temperature limits. If this is not the case for your instrument, you can add such a control element to a panel (see 
Modifying a Control Panel).
To control the temperature using a program
Use the Program Wizard to create a program (see Automatically Creating a Program). One of the wizard pages refers to column thermostat temperature control. On this page, verify that the check box for enabling temperature control is selected and enter the desired values in the fields below.
The program creates the following lines automatically (depending on the column oven type):
Commands for enabling the temperature control:
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0.000 |
X.TempCtrl=On |
or |
|
0.000 |
X.TempCtrl=Off |
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(where X is the name under which the corresponding instrument is listed in the Server Configuration program)
TC, TCC-100/TCC-3x00 and FLM-3100 program commands:
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0.000 |
X.Temperature = Value[°C] |
|
; |
This command determines the nominal temperature. |
|
0.000 |
X.Temperature.UpperLimit = Value[°C] |
|
0.000 |
X.Temperature.LowerLimit = Value[°C] |
|
; ; |
These commands determine the upper and lower limits. The limits are monitored by Chromeleon. |
(where X is the name under which the corresponding instrument is listed in the Server Configuration program)
ICS-1000/1500/2000, ICS-1100/1600/2100, and AS50 thermal compartment program commands:
|
0.000 |
Column.Temperature = Value[°C] |
|
; |
This command determines the nominal temperature. |
|
0.000 |
Column.Temperature.UpperLimit = Value[°C] |
|
0.000 |
Column.Temperature.LowerLimit = Value[°C] |
|
; ; |
These commands are available for the ICS-1000/1500/2000 or ICS-1100/1600/2100 only and determine the upper and lower limits. The limits are monitored by Chromeleon. |
DC program commands:
Include the following commands before data acquisition begins:
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Column_TC.AcquireExclusiveAccess |
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; |
This command gives exclusive control of column temperature to the current timebase. |
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Column_TC.Mode = On/Off |
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Column_TC.TemperatureSet = Value[°C] |
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; |
These commands turn on or off column temperature control and determine the temperature setpoint. Column temperature control is an option in the DC. |
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Compartment_TC.AcquireExclusiveAccess |
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; |
This command gives exclusive control of compartment temperature to the current timebase. |
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Compartment_TC.Mode = On/Off |
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Compartment_TC.TemperatureSet = Value[°C] |
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; |
These commands turn on or off compartment temperature control and determine the temperature setpoint. |
Include the following commands after data acquisition ends:
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Column_TC.ReleaseExclusiveAccess |
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Compartment_TC.ReleaseExclusiveAccess |
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; |
These commands release control of the column and compartment temperatures to allow another timebase to acquire exclusive access. |