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Manual Updates
The following updates have been made to this manual since the original print date.
3/01/02
All references to the front panel Check Fuses LED on series 668xA have been removed.
5/01/02
Additional information has been added about Power Cord options.
The CC rms noise specification for series 668xA and 669xA is categorized as a supplemental characteristics.
Additional information has been added under External Voltage Control for series 664xA and 665xA.
11/06/02
Information has been added to the Safety summary page and Section 2 to comply with EN61010 regulations.
3/11/04
The ac input ratings and fuse information for Series 664xA has been updated as per IEC 61010-1 requirements
throughout the manual. The Declarations of Conformity for all models have been updated.
7/16/04
A note has been added to the specifications on pages 16 and 21.
The Declarations of Conformity for all models have been updated.
1/24/05
The ac input ratings information for Series 667xA, 668xA and 669xA has been updated.
1/26/07
The power cord installation procedure for Series 669xA has been updated. Line cord Option 841 is deleted. A typo has been
fixed on the transient response spec for Series 667xA.