Gas analyzer unlocking in The Netherlands?

[Power_uP]

This is a longshot, but whatever...

I recently acquired a Sun exhaust gas analyser. Its a useful piece of equipment, but its locked and must be recalibrated. The recalibration is supposed to be done annually by someone from Sun or else the unit just does absolutely nothing, but Sun will no longer service my analyser as its too old. I therefore have a very expensive paperweight unless I can get the machine calibrated, and there doesn't seem to be anyone in the UK who still has the tools to service my unit.

However, I've noticed that Marktplaatz.nl seems to always have a few of these exact analysers listed, and many of them have been unlocked so that the annual calibration is not necessary. I'm guessing that there's still someone in The Netherlands who can still service and unlock my gas analyser and since so many people on here have old cars, can anyone point me in the direction of someone in the Netherlands (or anywhere) who has any experience with Sun gas analysers?

Here's an example of what I keep seeing: Gas Analyzer on Marktplaatz

I've had a look around various forums and there seems to be very few of these units in the UK now, so I'm not expecting to ever get the unit unlocked, but its worth trying. I'm happy to ship the analyser overseas if necessary.

I'm even happy to pay for someone to give me the firmware and I'll just get the EPROMS reprogrammed locally if that's what it takes, but there's no way I'm throwing my analyser in the trash.