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Anyone out there know how to "unlock" the above? I've got hold of an old Sun DGA-1800 gas analyser from an MOT station that closed years ago, but it won't give a reading because it's out of calibration. Each time it's calibrated, the "expiry date" is changed so that a proper MOT station won't be using a machine that hasn't been calibrated, but I'm not bothered about that - I just want an idea of whether my car might pass or fail before I take it in. I've phoned Snap-On (who deal with Sun stuff now) and while they're happy to remove the expiry date, they'll only do so if I have it calibrated first, at £180 + VAT, which I'd obviously prefer to avoid. I don't even know if it works properly any more.
Anyone have any ideas? I've done a bit of a search and found some codes to type in, but nothing has any effect.
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froggy
Posted a lot
Posts: 1,099
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Your best bet is go to a friendly test station and get their service engineers mobile number .
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landyman1
Part of things
escapee from main dealer sweatshop,now twirl spanners for electricity industry happy days
Posts: 12 
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Hello to all!
I have a SUN-DGA 1800 and tested the passwords here written.
Funktion tested for code 314159 15 minutes bypass and
the second code 515324 is for the service menue.
In the service menue you can edit date and after that you get full access back.
Greets Andreas from Germany (Sorry for my bad english)
found this on a garage equipment site,worth a go
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Thanks for those landyman1. Those codes do look like the ones I found on a forum as well - the first one (Pi without any decimal point) is certainly one I've tried, but I'll have a go with the other. The device came with manuals, and I think one of those codes is written on the back of it. froggy, I have tried getting various contacts without success so far - I have an idea the override code changes by date, and perhaps the engineer has to call the main office to get the new code, and hence no luck without a chargeable job. But that might be guesswork, because that's the way I'd do it maybe. |
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If it's not calibrated, how will it give you an idea if your car will pass or fail?
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Well, my hope was that it would be still be reasonably close from the last time it was calibrated, and also I intended to get the printout from the MOT test next time it goes in, then do a reading on the DGA, and if they were close to each other, that would be good enough for me. If not, then it can go back on the scrap pile it came from - where it was put because the previous owner never used it and wanted the space, not because it was dead or anything.
I am only really looking for something I can just put on my own cars prior to MOT to give me an idea, and HC is about the only thing I can't check any other way. And because that only amounts to one car once a year (though when I finish the others, it will be three) it's not really worth paying "proper" price to have it calibrated, that money would cover popping to somewhere local and asking them to check it over in return for a contribution to the brew fund. Being able to tinker / adjust things while it's on the machine would be nice if I can make it work.
It might be unrealistic to assume it will keep calibration when it's not used for long periods of time, I don't really know how these things work.
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May 31, 2018 17:50:11 GMT
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I called Snap-on again today, and got in touch with a very helpful chap who was happy to give me the service menu code and talk me through disabling the MOT mode.
The bad news is that it didn't help. In fact my analyser is already running in "standard" mode, and apparently the reason that it does not display readings is because it is overdue for a gas calibration test. The man at Snap-on told me this will be difficult to arrange as it involves someone visiting with three different gases to calibrate the unit.
Good to know, at least, and I think I will get rid of it now as this is a pretty conclusive "game over".
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might be a stupid idea but can you go into the settings of the PC and set the main pc date back? I use some parts identifying software that is date sensitive and have to use a dedicated PC with the date set back so it thinks the software is still in date, just an idea before you get rid!
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I did wonder about that when I thought it was the MOT expiry date - powered up with a key held down to try to force it into the BIOS, that kind of stuff. I never managed to make it do anything other than boot, and I'm not 100% sure it's exactly PC architecture. It has a floppy drive, but that only contains MOT information and it boots just the same whether the floppy is in place or not.
However, the issue with it is that it's detected the gas calibration has "drifted" sufficiently far that it's decided a calibration is required. It's not that it's been a certain amount of time, apparently, but that it's found a problem.
I was reluctant to just bin it while I thought it was just an expiry date, but the Snap-on chap took me through a number of screens and the date-based refusal to show gas readings has already been disabled.
I've put an advert for it for spares in the "parts for sale" section, but I doubt anyone will want it.
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