Mr. Sim- I consider myself justly rebuked!
Thanks for your reply, and I have identified the meter as an AM31-1, (three wheel in KPa) and thanks to the link to your site, I can confirm that from the rear it looks exactly the photo on your page...
Could you (or anyone else) let me know the connection order? As I outlined in my first post, there are three connection points. However, one of the removable couplings appears to be blanked off.
I will try to load a picture, but meantime, can anyone confirm if it is the left or right side connection which is blanked off, and is the center one the "in" or the "out"?
Any help would be appreciated!
Morgan