SM1L10H Heated Lens Tube
13289-D02, Rev F April 6, 2016
2. Locate unit on a solid, dry working surface. Unit should be secured to a
standard optical breadboard using a T horlabs’ post and base in
conjunction with a Thorlabs’ LMR1 adapter (not included).
3. Connect the heater to a n appropriate heater controller. The Hirose
connector is pin compatible with Thorlabs’ TC200 Heater Controller.
Please refer to Appen dix A for pin designations if you are using a third
party controller.
4. Operate the heater in accordance with the controller that is powering it.
IMPORTANT NOTE: The internal heating element is pr otected by a t hermal
switch that acti vates at 80 °C. At this temperature t he thermal switch will open
the connection to the heating element, causing the unit to cool down. The reset
temperature on the switch is approximately 40 °C. Once the switch cools down to
the reset point it will re-close and connect the h eating element to the power
source. The unit will then cycle on and off until the problem is corrected. Possible
reasons for th e heater to exceed 80°C include: a failed thermistor, o pen or
broken thermistor wires or connections, or improperly set control temperature.
Additional SM1 compatible lens tubes and accessories can be installed onto the
SM1L10H. Male and female threads are provided on each end of the unit. Please
take care when threading extensions onto the SM1L10H as each e nd cap is
made from Delrin and can easily cross thread or strip if over tightened.
