Advanced Instruments 4D3 - Page 31

31
The Advanced
®
3D3/4D3 Service Manual
No suffix Original model released.
August 1991
Serial Suffix ‘A’ • Case manufactured in one
August 1992 piece, instead of two.
• Front panel (keypad) mounted
to the base assembly.
• Keypad pulls down.
• Printer power output added to
the rear panel.
• Head position sensors mounted
to a printed circuit board.
• Heat tansfer fluid door pulls
down.
Serial Suffix ‘B’ One-way valves redesigned.
July 1993
Serial Suffix ‘C’ • Supervisor/Operator keyswitch
August 1993 added.
• Software change.
Serial Suffix ‘D’ • Transistors moved to the back
October 1993 wall.
• New power entry module.
Serial Suffix ‘E’ • Sample probe designed to plug
March 1994 into head unit.
• Software incorporated several
languages.
Serial Suffix ‘F’ 512K EPROM.
July 1994
Serial Suffix ‘G’ Software upgrade enabling multi-
November 1994 language translations.
Serial Suffix ‘H’ EC and ETL marks added.
October 1995
Serial Suffix ‘I’ ---
omitted
Serial Suffix ‘J’ Added surge arrester to power
December 1995 entry.
Serial Suffix ‘K’ Cooling assembly change.
February 1996
Serial Suffix ‘L’ Painted underside of deck.
December 1996
Serial Suffix ‘M’ Paint changed to off-white.
May 1997
Serial Suffix ‘N’ Power supply changed.
June 1997
Serial Suffix ‘O’ ---
omitted
Serial Suffix ‘P’ Reduction of reset problem.
November 1997
Serial Suffix ‘Q’ Correct reboot problem.
January 1998
Serial Suffix ‘R’ 4-digit year display, for year
June 1998 2000.
Serial Suffix ‘S’ Sample well changed.
June 1998
Serial Suffix ‘T’ New IEEE display and new
October 1998 cable.
Serial Suffix ‘U’ • Intel Processor board set,
December 2001 4D3605.
• Added Barcode port.
• New power entry.
• FLASH memory upgrade.
Serial Suffix ‘V’ • Added ISO 5764 seeking
April 2002 method.
• New Delrin probe.
Model 4D3
Cryoscope Description
Model 4D3
Cryoscope Description