National Instruments NI 9219 Physical Characteristics, Safety

NI 9219 Operating Instructions 30 ni.com

Thermal dissipation (at 70 °C)

Active mode............................... 625 mW max

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

Physical Characteristics

If you need to clean the module, wipe it with a dry towel.

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

conductor wire with 7 mm

(0.28 in.) of insulation

stripped from the end

Weight...............................................156 g (5.5 oz)

Safety

Safety Voltages

Connect only voltages that are within these limits.

Isolation

Channel-to-channel

Continuous...........................250 VAC,

Measurement Category II

Withstand.............................1390 VAC, verified by a 5 s

dielectric withstand test

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