Resistive Heater Mode Operation - Newport LDC-3706 Series User Manual

Resistive Heater Mode Operation

1. Plug the LDC-3706 Controller into an AC power source supplying the correct mains voltage
and frequency for the instrument (refer to the rear panel for the correct ratings)
2. Turn on the LDC-3706; the TEC output will be disabled at power up and the unit will
automatically configure its parameters to the state which existed when the power was last
shut off
3. Press the SELECT soft button in the TEC MODE section of the front panel until the
TEMPERATURE LED on the SENSOR LED is selected
4. Press the TEC button in the PARAMETERS section of the front panel to enable the menu
structure and adjust the applicable limits, sensor type, calibration constants, and external fan
control. Use the SET button to select the parameter to adjust and then use the ADJUST
KNOB to change the parameter to the desired value. Clockwise rotation will increase the
parameter and counter-clockwise rotation will decrease the parameter. Allow the parameter
adjustment to time out (three seconds) or press the SET button to save the new parameter in
non-volatile memory. For Resistive Heater Mode ensure that the positive current limit (I+) is
set to zero
5. Adjust the TEC temperature or sensor value setpoint by enabling the TEC adjustment mode
by pressing the TEC button in the ADJUST section of the front panel and rotate the ADJUST
KNOB to the desired value
6. The user can display measured voltage, current, or temperature or the sensor setpoint on the
TEC side (left) display by pressing the LEFT (left) and RIGHT (left) display buttons in
constant sensor mode. The user can display measured voltage, current, or sensor value or
the temperature setpoint on the TEC side display (LEFT) by pressing the LEFT (left) and
RIGHT (left) display buttons in constant temperature mode.
7. Enable the TEC output of the LDC-3706 by pressing the ON soft button (left) in the TEC
MODE section of the front panel. This button has a toggling action so pressing this button
once more will disable the TEC output
December 2019 39 LDC-3706 Series Laser Controller