Reset code for Seaward Supernova Portable Appliance Testers

[okk]

Would any of our esteemed members know the reset password for the Seaward Supernova Portable Appliance Tester?
This password resets the date counter so that you don't get an out of calibration error when you try to use it 12 months after the previous calibration date, seems to be a good way of making money.

Only Seaward themselves have this password so that you have to send the tester to them for calibration every year instead of being able to use a local calibration company.

Mods... I think this is the right place for this post, please move if not.

Thanks...