data to follow:<br />Landis&Gyr<br />Made in Switzerland ( 1950's )<br /> A²h meter.<br />type QF1<br />Ex utility P.G.E.M. in Arnhem, The Netherlands<br />The meter was used with Current transformers 1200 / 1 Amp ratio.<br />I have no idea for what purpose an ampère squared hour meter was used for.<br />In DC battery banks Amp hour meters are used. <br />Google doesn't give not too much info here either.<br />In case someone knows please advise.
