OME-DB-889D Multiplexer Board
1. Function Description
The OME-DB-889D is an expansion multiplexer / amplifier board for use with OME-A-82X, OME-PCI-1800 series. Each OME-DB-889D multiplexes 16 differential analog input channels into one analog input of the DAS board. The high grade instrumentation provides software programmable gains of 0.5, 1, 5, 10, 50, 100, 500 and 1000.
Thermocouple measurements are handled easily with OME-DB-889D. The board includes cold junction sensing and compensation circuitry that provides a scaling of 24.4mV/°C. Biasing restores are includes for open thermocouples detentions of voltage measurements or 112 channels of thermocouple measurement.
1.1 Features
zConnects directly to OME-A-82X, OME-PCI-1800 series boards with D-sub 37 connectors.
zCold-junction compensation for thermocouples and thermocouple open detection.
zSoftware-programmable instrumentation amplifier
zGain of 0.5, 1, 5, 10, 50, 100, 500, 1000
zDaisy chain up to ten OME-DB-889D boards
1.2 Applications
zEnergy management
zSignal conditioning
zAnalog Multiplexer
1.3 Specification
zAccepts thermocouple type : J, K, T, E, S, R, B
zCold-junction Compensation : +24.4mV/°C , 0V at 0°C
zOvervoltage protection : ±30V Continuous
zCommon mode voltage : ±10V max.
zAnalog output Voltage to A/D card :±10V
OME-DB-889D User’s Manual | 2 |
