Keithley 3730 User Manual

Section
4: Closing and Opening Switching Module Channels Series 3700 System Switch/Multimeter
User's Manual
4
-2 Document Number: 3700S-900-
01 Rev. A / August 2007
Channel pattern operation: This mode of operation provides additional flexibility by providing
individual control of each switching module and backplane channel. Careless operation in this
mode could create a safety hazard and/or damage the switching module and other equipment.
Channel pattern operation should only be used by experienced test engineers.
WARNING Careless channel pattern operation could create an electric shock hazard
that could result in severe injury or death. Improper operation can also
cause damage to the switching modules and external circuitry. Controlling
multiple channels using channel patterns should be restricted to
experienced test engineers who recognize the dangers associated with
multiple channel closures.
CAUTION To prevent damage to a switching module, do not exceed the maximum signal
level input for that module. Most switching modules are rated for 300V.
NOTE The Series 3700 is capable of scanning switching module channels. Each channel in
the scan can have its own unique DMM configuration.
Channel operation (non-channel pattern operation)
NOTE Channel operation includes closing and opening individual channels as well as
channel ranges and backplane relays, but does not include channel patterns. Channel
pattern operation (on page 4-2) includes channels and backplane relays that have
been specifically associated together as a single-pattern image.
When closing/opening a channel (or range of channels), the configuration of the channel's
attributes control how the channel is closed/opened. Additional channels or analog backplane
relays that are affected by the channel's attribute settings are also controlled. The Series 3700
verifies the operation being requested for a channel is supported by the specified channel and
that the channels specified to open or close exist in the system.
A channel represents a single channel unless it is being paired with its corresponding 4-pole
channel. Channels are configured at power up based on the card contained in each slot. Even if
a range of channels is specified in the command, each channel is treated individually as a
channel or channel pair and not as a channel pattern. If a slot has no card installed, only a few
attributes may be populated such as card type which will be set to indicate no card is in the slot
like "empty slot."
Channel pattern operation
For channel patterns, only channels and analog backplane relays included in the image are
controlled (no additional backplane relays or channel pairs other than those specifically
contained in the channel pattern image are closed/opened). Unlike channel operation (see
"Channel operation (non-channel pattern operation)" on page 4-2), no verification occurs during
the operation if a channel pattern is specified. The user must ensure the requested operation is
safe for a channel pattern. The system will verify that the items specified exist in the system.

Keithley 3730 Specifications

General

Brand	Keithley
Model	3730
Category	Multimeter
Language	English