VTI Instruments Ametek EX1200A Series, User Manual

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EX1200A Triggering 73
S
ECTION
4
B
ASIC
EX1200A DMM O
PERATION
O
VERVIEW
The EX1200A series mainframes can be configured to include an onboard DMM (please refer to
EX1200A Series DMM Specifications for details regarding functions, ranges, and accuracy)
depending on the model purchased. These DMMs are the EX1200-2165 (for the EX1206A) and
the EX1200-2365 (for the EX1208A) The functionality of these DMMs is identical and, as such,
they are referred to as the EX1200A DMMs throughout this section. The EX1200A DMMs can be
used in three different ways:

By directly connecting the DUT to the front panel connectors

Connection of the DUT to a switching plug-in module with access the DMM backplane
(described later in this section).

Utilizing the rear panel DMM bus D-sub connector (see Table 4-1).
The DMM Bus connector can also be used to extend DMM use to other EX1200A instruments to
use a single DMM.
Programming access to the DMM is provided through a soft front panel which resides on the web
server of the EX1200A, the Windows based IVI drivers (both IVI-C and IVI-COM), and through a
multi-platform driver. To exercise the complete capabilities of the DMM, as well as to achieve
required accuracies/speeds, it is important to understand DMM operation. This section of the
manual provides basic information on how to use the onboard DMM. Programming information
can be found in the VTEXDMM help file provided with the DMM driver. Programming examples
are provided to facilitate the use and understanding of the VTEXDMM driver and can be found at
the following location:
<Local Hard Drive>:\Program Files\IVI Foundation\IVI\Drivers\VTEXDmm\Examples.
Information regarding use of the DMM via the embedded webpage can be found in the DMM Soft
Front Panel description in Section 7 .
WARNING The EX1200A DMM is a CAT-I measuring device. As such, it is designed to make measurements
for circuits that are not connected to mains power. Under DMM installation CAT I and A, the
EX1200A DMM CANNOT be used for measurements in measurement categories II, III, and IV
per EN 61010.