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ITC8000

Protection Features

To protect the connected laser diode and the TEC element, the ITC8000 modules contain the

following protection circuits:

· Soft start when switching on the laser diode current

Protection from capacitive and inductive parasitic elements (switching peaks).

· Software Limits of the laser and TEC current in all operating modes; additional

hardware limit for the laser current.

Protection from destruction.

· Interruption control of the connection cable to the laser diode (interlock)

Protection from accidental operation.

· Contact protection of the laser diode (open circuit)

Protection from cable damage or bad contact.

· Electronic short-circuit switch for the laser diode

Protection from electro-static discharge when touching the switched-off laser.

· Sensor Protection

Protection from the use of not supported temperature sensors and from interrupted sensor

connection.

· Open-Circuit Protection of the connection cable to the TEC element

Protection from cable damage, bad contact or TEC element with too high resistance. When

tripped, a warning is output, but the output remains switched on - the reason is that even a

wrong TEC as still capable to cool the laser diode.

· Separate on and off function for each module

Protection from operating errors.

· Control LED for activated laser and TEC current

Protection from accidental disabling of the temperature control..

· Separate over-temperature protection for each module

Protection against thermal failure of the module.

· Line failure protection

In case of a line voltage failure the ITC8000 module must be switched on again manually.

· Key-operated power switch

Protection against unauthorized or accidental use.

· Action check

After power-up the ITC8000 modules are in LASER OFF mode.

THORLABS ITC8000 User Manual

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