Control Serial Number: Edition 2 applies directly to all instruments.
Edition 1 : 1st May 1990 :
1st September 1990 :
Edition 2 : 1st September 1991 :
1st September 1992 :
1st December 1994 :
1st July 1996:
Control Serial Number: Edition 2 applies directly to all instruments.
Edition 1 : 1st May 1990 :
1st September 1990 :
Edition 2 : 1st September 1991 :
1st September 1992 :
1st December 1994 :
1st July 1996: