National Instruments NI 9219 Power Requirements

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

MTBF............................................... 384,716 hours at 25 °C;

Bellcore Issue 6, Method 1,

Case 3, Limited Part Stress

Method

Note Contact NI for Bellcore MTBF specifications

atother temperatures or for MIL-HDBK-217F

specifications.

Power Requirements

Power consumption from chassis

Active mode............................... 750 mW max

Sleep mode................................. 25 μW max

Load Resistance (Ω)Excitation (mV)

120 50

350 150

1 k 430

10 k 2200

Contents

Main Safety Guidelines Safety Guidelines for Hazardous Voltages Safety Guidelines for Hazardous Locations Special Conditions for Marine Applications Wiring the NI 9219 Page Page Connecting Wires to the NI 9219 Connectors Wiring TEDS Channels Grounding and Shielding Considerations Figure 3. Connecting a Grounded Signal Source to the NI 9219 Figure 4. Connecting a Floating Signal Source to the NI 9219 NI 9219 Timing Options NI 9219 Circuitry Figure 5. Input Circuitry for One Channel Voltage and Current Modes Figure 6. Connections in Voltage, Current, and Digital In Modes + 4-Wire Resistance and 4-Wire RTD Modes 3-Wire RTD Mode 2-Wire Resistance and Quarter-Bridge Modes Half-Bridge and Full-Bridge Modes Thermocouple Mode Digital In Mode Open Contact Mode Sleep Mode Binary Data Excitation Protection Specifications Input Characteristics Page Page Page Page Input noise in ppm of Range Page Page Power Requirements Physical Characteristics Safety Safety Voltages Safety Standards Hazardous Locations Environmental Shock and Vibration Electromagnetic Compatibility CE Compliance Waste Electrical and Electronic Equipment (WEEE) Calibration Where to Go for Support