6300 Series
ComboSource
User’s Manual · Page 37
Using the Temperature Controller
TEC Control Modes
The
ComboSource
offers three TEC control modes: constant temperature mode
(T Mode), and constant resistance mode (R Mode), and constant current mode
(Ite Mode).
Changing the control mode is done through the TEC menu by changing the
Mode
parameter to
T Mode
,
R Mode
, or
Ite Mode
.
Constant temperature mode uses the sensor constants to calculate the
resistance of the thermistor at the desired or actual temperature.
While most users will only need the temperature control mode, the constant
resistance mode allows you to bypass the sensor equation and directly select
the sensor set point. This can be useful when only the desired sensor value is
known, or when the sensor-to-temperature conversion values are not available
for your sensor.
Using the TEC Limits
All TEC limits are implemented in software, but due to the relatively slow nature
of the TEC, software is typically adequate.
Both high and low temperature limits are available, and will turn the TEC output
off unless this has been disabled (see
Using Advanced Settings
or
TEC:ENABLE:OUTOFF command).
Likewise, the sensor limits define an upper and lower limit for the sensor, but
unlike the temperature limits, the sensor limits will
not
turn the output off unless
specifically enabled in the Advanced Settings menu or via the
TEC:ENABLE:OUTOFF command.
Selecting the Fixture
The
ComboSource
has integrated support for many of the mounts offered by
Arroyo Instruments, such as the
205 TEC Butterfly
LaserMount
. To simplify
operation when using these mounts, you can change the
Mount
setting in the
menu to the mount type you are using. By selecting a mount, the current limit,
temperature limits, default gain, and sensor settings are automatically adjusted
to values appropriate to the mount, and menu settings limited to the capabilities
of the mount. For example, when the
205
is selected, the
Sensor
setting is
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