S102T02 Series S202T02 Series Date code (2 digit) 1st digit 2nd digit Year of production Month of production A.D. Mark A.D Mark Month Mark 1990 A 2002 P January 1 1991 B 2003 R February 2 1992 C 2004 S March 3 1993 D 2005 T April 4 1994 E 2006 U May 5 1995 F 2007 V June 6 1996 H 2008 W July 7 1997 J 2009 X August 8 1998 K 2010 A September 9 1999 L 2011 B October O 2000 M 2012 C November N · · 2001 N · · December D · · repeats in a 20 year cycle Country of origin Japan Rank mark There is no rank mark indicator and currently there are no rank offered for this device. Sheet No.: D4-A01601EN 3