I have got an old Canadian Sangamo S 3 meter which has an kh ratio of 1 1/3 which equates to 750 rev. kWh.
to work out kh ratio from revs kWh
1 divided by 750 times 1000 = kh.
as classicsat says it works out the same
One of ours says both. Rr 138 8/9, and Kh 7.2
1 / 138 8/9 * 1000 = 7.2= kh
In New Zealand most meters are expressed in revs / kWh which is according to the British Standards.
some Dutch meters have the constant as C = 600 or 600 omw / kWh.
I have also seen the Russian meters on Ebay, interesting to note that most of the very old meters are 3 dials and only 5 Amps base load. What is mentioned already that on the nameplate the numerals are in Cyrillic, the dial has the normal numerals.
In Egypt in 1986 I saw meters with actual Arabic numerals / symbols on the dial drums as on the nameplate. Perhaps one of our Egyptian friends can sent us a picture from those meters.
