Doc. 2135-D01 Rev E 7-20-2001
5
•
At the output jack, a control signal is available to drive an external LED to indicate TEC ON mode when the
TEC current loop is activated.
•
The set value of the temperature can be changed via an adjustment knob on the front panel or via an analog input
on the rear panel.
•
An analog voltage proportional to the actual value of the temperature is available on the rear panel for
monitoring purposes.
•
The unit has been designed for safe operation with environmental temperatures of more than 40
°
C, provided
that a free circulation of air through the ventilation louvers on the rear and on both side panels is guaranteed.
•
In case of overheating caused by too high environmental temperatures or closed ventilation louvers, the unit
automatically switches off the output to avoid damages.
•
If the TEC circuit is interrupted or a break occurs in the interface cable the TEC current output is disabled and
the “OPEN CKT” status LED will illuminate.
•
The LED "OTP" (over-temperature-protection) indicates the controller is in an over-temperature mode and the
output is disabled.
•
After cooling down about 10
°
C, the LED "OTP" turns off and the output current can be switched on again by
pressing the "ENABLE" button.
•
If an error occurs (OTP or OPEN), the corresponding LED lights up and a beeper sounds a short warning signal.
•
The installed line filter and the transformer shielding provide for low ripple at the outputs.
•
Thorlabs has laser mounts with TEC and temperature sensors built in for 5.6mm, 9mm, and TO-3 style laser
packages.
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