Service Manuals, User Guides, Schematic Diagrams or docs for : Keithley DAS 24682A(DAS-4300Addendum)

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>> Download 24682A(DAS-4300Addendum) documenatation <<

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        DAS-4300 Series Addendum

                   This document describes changes made to the DAS-4300 Series boards in
                   order to achieve compliance with the European EMC directive 89/336
                   EEC (CE Mark certification). In addition, this addendum provides
                   corrections to the DAS-4300 Series documentation.


Clock Output

                   Pins 5 and 12 of U514 (74ABT125) have been lifted in order to disable
                   the clock output function. If you connect multiple DAS-4300 Series
                   boards and want to use one internal clock for all the boards, you need to
                   replace the pins.


Spring Gaskets

                   Spring gaskets have been installed over the BNC connectors. When a
                   cable is attached, these gaskets are compressed between the cable
                   connector and the bracket.


Manual Corrections

                   The DAS-4300 Series Function Call Driver User's Guide states
                   incorrectly that the start trigger should be external when using an about
                   trigger. The start trigger must be internal when using an about trigger.




Part No. 24682; Revision A                                                                     1
    The following information is missing from the description of the pCount
    parameter of the K_IntStatus function in the DAS-4300 Series Function
    Call Driver User's Guide:
    q   Normal acquisition
        pCount = 0 during the operation
        pCount = buffer length (total number of samples acquired) when the
        operation completes
    q   About-trigger acquisition
        pCount = 0 during the operation
        pCount = pre-trigger length (number of samples acquired before the
        about trigger occurred) when the operation completes




2                                                           November 1999

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