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Power requirements, Physical characteristics, Bus interface – National Instruments NI USB-9219 User Manual

Page 21

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© National Instruments Corporation

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NI USB-9219 User Guide and Specifications

Excitation level for Half-Bridge and Full-Bridge modes

Excitation level for Resistance, RTD, and Quarter-Bridge modes

Power Requirements

Current consumption from USB ............ 500 mA, max

Suspend mode ................................. 2.5 MA, max

Bus Interface

USB specification ........................... USB 2.0 Hi-Speed

Physical Characteristics

Spring-terminal wiring ........................... 18 to 28 AWG copper conductor

wire with 7 mm (0.28 in.) of
insulation stripped from the end

Weight .................................................... 258 g (9.1 oz)

Mode

Load Resistance (

Ω)

Excitation (V)

Half-Bridge

700

2.5

Half-Bridge

240

2.0

Full-Bridge

350

2.7

Full-Bridge

120

2.2

Load Resistance (

Ω)

Excitation (mV)

120

50

350

150

1,000

430

10,000

2,200