What it does

TamperLock mode locks a source or meter so they can only be turned on an off, and a reference taken.

For example:
A source and meter can both be set "permanently" to a required λ and dB mode for loss testing.
A power meter only can be set to a required λ and dBm for transmission power testing.
A source can be set to a particular tone & λ for use with a fiber identifier.

The mode can be exited if needed, for example if it is found to be incorrect while deployed on a different job.

To prevent tampering, it's status can be tracked by a unique user PIN code.

Unique user benefits 

• Useful for repetitive measurements to avoid mistakes, reduce skill, and work faster

• The same instruments can be set up for different applications, rather than having to buy multiple very basic instruments for each application.

• Improve test traceability and quality.

• Escape mechanism for when it's inappropriate.

• Designed to be managed by one or more supervisors.

TamperLock mode Instruments