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||Provides Eight Channels
of Strain-Gage Input
||Accommodates Most Bridge-Type Sensors, Including 4-Element
Full and 3-Wire Quarter Bridges
Regulator Per Channel
||User-Selected Low Pass Filter
The OMB-DBK43A eight-channel
strain-gage expansion module
for OMEGAs OMB-LOGBOOK
Series data acquisition systems
accommodates the connection
of most strain-gage types, from
single-element, 3-wire quarter-bridges
to 4-element full bridges.
The OMB-DBK43A also includes
provisions for bridge completion
resistors and provides four externally
accessible adjustments on each of
its eight channels, including
excitation voltage, input gain,
offset nulling, and output scaling.
Up to thirty-two OMB-DBK43A
modules can be connected to a
single OMB-LOGBOOK or
for up to 256 strain-gage channels.
The OMB-DBK43A includes a
built-in DC/DC converter, allowing
the unit to be operated from an
external power source while
drawing very little power from
the data acquisition system.
The external power source can
be the included AC adaptor, the
battery/excitation module, a car
battery, or any 9 to 18 Vdc source.
The DC/DC converter also provides
excitation voltages for all channels.
Each of its eight on-board excitation
regulators can be externally
adjusted from 1.5 to 10.5 Vdc.
The regulator outputs have remote
sensing terminals and feature
50 mA current limiting to prevent
damage from short-circuits or
overloads. The wide regulator voltage
range lets you incorporate virtually
any resistive or semi-conductive
gage type in your system.