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8-Channel Strain-Gage Module for OMB-DAQBOARD-2000 Series and OMB-LOGBOOK

Item# OMB-CA-132


8-Channel Strain-Gage Module for OMB-DAQBOARD-2000 Series and OMB-LOGBOOK OMB-CA-132 OMB-CA-132
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  • Provides Eight Channelsof Strain-Gage Input
  • Accommodates Most Bridge-Type Sensors, Including 4-ElementFull and 3-Wire Quarter Bridges
  • Individual ExcitationRegulator Per Channel
  • User-Selected Low Pass Filter

Product Specs

  • Impedance 100 m parallelwith 100 pF
  • Supply Voltage 1.5 to 10.5 Vdc

The OMB-DBK43A eight-channel strain-gage expansion module for OMEGA’s OMB-LOGBOOK and OMB-DAQBOARD-2000 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 OMB-DAQBOARD-2000 Series, 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 OMB-DBK30A rechargeable 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.

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