Page 40 · 5400 Series
TECSource
User’s Manual
Using the AutoTune Function Remotely
The AutoTune function can be done remotely, and works essentially the same as
local operation. The TEC:AUTOTUNE command starts the process, and requires
one parameter, which is the AutoTune temperature test point.
The command will immediately put the instrument into AutoTune mode, and the
display will indicate progress in the same way as local operation. The
TEC:AUTOTUNE? query can be used to monitor the process of AutoTune. A
response of 1 indicates AutoTune is in progress. Once complete, the instrument
will respond with a 2 if AutoTune failed or a 3 if AutoTune succeeded. A
response of 0 is returned if the instrument has never started an AutoTune
process since the last power up.
Turning the output off remotely will cancel the AutoTune process and generate
an E-436 error.
More details on the use of the command can be found in the
Computer
Interfacing Manual
.
Controlling the Temperature Rate of Change
Some applications require that temperature is changed at a specific rate to
prevent damage that might otherwise come from rapid changes in device
temperature. Using the
Advanced Menu » T Rate
setting, it is possible to
control the temperature ramp rate of the controller, limiting the rate of change to
specific degrees Celsius per minute.
Because the temperature rate function relies on the instrument tracking a
gradually changing set point, a proper gain setting (or PID values) are important
to achieve a smooth and continuous temperature transition.
To disable the temperature rate function, simply set
T Rate
to
0.0°C/min
.
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