Idiomas disponibles
Idiomas disponibles
3 Features and Functions
DAQM909A 4-Channel 24-Bit Digitizer Module
The DAQM909A is a four-channel digitizer module capable of providing four simultaneously-sampled channels with
sampling rate as high as 800,000 samples per second with a maximum resolution of 24 bits. The input channels of
the DAQM909A can be configured as a differential input or a single-ended input and each of the channels can
provide up to 4mA of constant current to power up an external IEPE transducer. When three DAQM909A modules
are inserted within the same instrument, all 12 channels can be synchronized to provide simultaneous sampling.
DO NOT MEASURE MORE THAN THE RATED VOLTAGE
The maximum input voltage for measurement is +/-18Vpk (single ended) for both HI and LO pins.
TO PREVENT ELECTRICAL SHOCK
To prevent electrical shock, use only wire that is rated for the highest voltage to any channel. Before removing
a module cover, turn off all power to external devices connected to the module.
CAUTION WITH MULTIPLE SIGNALS
To avoid the possibility of multiple signal sources becoming connected together, we recommend when
multiplexing two or more sources they should be connected on separate modules or on separate banks of the
same module.
CAUTION WITH HAZARDOUS VOLTAGES
When any channel is connected to a hazardous voltage source, all channels in the module should be treated as
hazardous and all channel wiring in the module should be rated for the maximum voltage applied. Ther-
mocouples attached to any other channel on the module should have insulation rated for the maximum
voltage, or have additional insulation added rated for the maximum voltage and should be isolated from
conductive parts using a thermal compound or tape rated for the maximum voltage applied. Do not mount,
move, or remove any thermocouples when the device under test is connected to a supply source.
ENVIRONMENTAL HEALTH AND SAFETY
When any channel is connected to a hazardous voltage source, the instrument and the device under test
should be supervised, following local EHS practices to restrict access.
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Keysight DAQ970A/DAQ973A User's Guide
