Controlling the Sample TemperatureTemperature Control
Controlling the Sample Temperature
Some autosamplers (for example, Dionex ASI-100T and WPS-3000T), have a thermostatting option that allows you to cool the samples.
You can then control the temperature of the instrument by using the corresponding control (gauge or edit field) on the Control Panel.
To change the temperature during operation
As a rule, a Panel Tabset or Control Panel for an autosampler with thermostatting option provides control elements for reporting the current temperature, as well as for setting a new nominal temperature. If this is not the case for your autosampler, 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 as described in Automatically Creating a Program. One of the wizard pages refers to autosampler sample thermostatting. On this page, verify that the check box for enabling temperature control is selected and enter the desired values in the fields below.
Program Example (here: WPS-3000T)
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0.000 |
Sampler.TempCtrl |
= On |
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; |
This command enables and disables the temperature control. |
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0.000 |
Sampler.Temperature.Nominal |
= Value[°C] |
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; |
This command sets the nominal temperature. |
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0.000 |
Sampler.Temperature.UpperLimit |
= Value[°C] |
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0.000 |
Sampler.Temperature.LowerLimit |
= Value[°C] |
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; ; |
These commands define the upper and lower limit. The limits are monitored by Chromeleon. |
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0.000 |
Wait |
Temperature.Ready |
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; ; |
The Wait command delays all further operations on the instrument until the system receives the feedback that the nominal temperature has been reached. |
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