5400 Series
TECSource
User’s Manual · Page 41
Changing the Set Point Step Size
In many applications, user will manually adjust the instrument between only a
few set points, such as thermal testing in a production environment. In these
applications the high resolution of the temperature set point can actually be a
hindrance, as precisely adjusting between 25.00°C and 50.00°C, for example,
will entail over- and under-shoots as the operator changes from one set point to
the other.
Using the
Advanced Menu » Tset Step
setting, you can select a step size of
0.001, 0.005, 0.01, 0.05, 0.1, 0.5, 1, 5,
or
10°C
. In the above application, a step
size of
5°C
would allow for rapid and easy adjustment between the two
temperatures.
Note that the step will adjust based on the current set point, so, for example, if
the set point was 25.31°C and the step size was
5°C
, the instrument would
adjust to 30.31°C, 35.31°C, etc. you may want to adjust the set point to a good
starting point before increasing the step size.
Note that changing the step size will not change the resolution of the displayed
value for either the set point or the actual temperature.
Resistive Heaters and Heat/Cool Only Modes
The
TECSource
supports temperature control using resistive heaters instead of
Peltier coolers. With resistive heaters, cooling is obviously not possible, and the
TECSource
must be configured to not attempt to cool the output, or a run-away
condition will occur when the cooling current actually causes additional heating.
If your application requires, you can also configure the
TECSource
to operate in
a cool-only mode. This is only possible with Peltier coolers, as resistive heaters
will heat regardless of the direction of current..
To change the cooling mode, adjust the
Advanced Menu » H/C Mode
setting to
Heat/Cool
,
Heat Only
, or
Cool Only
, as appropriate.
Using the Current Limit
The current limit in the
TECSource
is used to limit the amount of current that is
delivered to the mount. Because the
TECSource
has a hardware current-
controlled output, the current will not exceed the limit at any time in any mode.
Set the limit by adjusting the
I Lim
parameter in the main menu.
Summary of Contents for TECSource 5400 Series
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