National Instruments NI 9219 Operating Instructions Manual
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National Instruments NI 9219 Operating Instructions Manual

National instruments universal analog input module operating instructions
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OPERATING INSTRUCTIONS
NI 9219
4-Channel, 24-Bit, Universal Analog Input Module

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Summary of Contents for National Instruments NI 9219

  • Page 1 OPERATING INSTRUCTIONS NI 9219 4-Channel, 24-Bit, Universal Analog Input Module...

  • Page 2: Safety Guidelines

    Safety Guidelines Operate the NI 9219 only as described in these operating instructions. Hot Surface hot. Touching this component may result in bodily injury.

  • Page 3: Safety Guidelines For Hazardous Voltages

    You must use the NI 9972 connector backshell kit to ensure that the terminals are not accessible. © National Instruments Corp. /60 VDC), you must ensure that devices NI 9219 Operating Instructions...

  • Page 4: Safety Guidelines For Hazardous Locations

    Figure 1. NI 9972 Connector Backshell Safety Guidelines for Hazardous Locations The NI 9219 is suitable for use in Class I, Division 2, Groups A, B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nC IIC T4 hazardous locations; and nonhazardous locations only. Follow these guidelines if you are installing the NI 9219 in a potentially explosive environment.
  • Page 5 Power supply and module cables must be separated on opposite sides of the enclosure and must enter/exit through opposing enclosure walls. © National Instruments Corp. and search for the LR certificate, or NI 9219 Operating Instructions...
  • Page 6 Wiring the NI 9219 The NI 9219 has four 6-terminal connectors that provide connections for four analog input channels. Connect the positive signal of the signal source to the positive input signal terminal (HI) and the negative signal of the signal source to the negative input signal terminal (LO).
  • Page 7 © National Instruments Corp. Table 1. Signal Names Signal Terminal Name T– EX+/HI EX–/LO Signal Description TEDS Data TEDS COM Positive excitation or input signal Positive input signal Negative excitation or input signal Negative input signal NI 9219 Operating Instructions...
  • Page 8 Mode Voltage Current 4-Wire Resistance T+ 2-Wire Resistance T+ Thermocouple 4-Wire RTD 3-Wire RTD Quarter-Bridge Half-Bridge Full-Bridge Digital In Open Contact NI 9219 Operating Instructions Table 2. Terminal Assignments – — – – – – — – – – –...
  • Page 9 Refer to the Specifications section for more information about spring-terminal wiring. Refer to Figure 2 for an illustration of connecting wires to the NI 9219. Figure 2. Connecting Wires to the NI 9219 Connectors © National Instruments Corp. NI 9219 Operating Instructions...
  • Page 10 You can connect ground-referenced or floating signal sources to the NI 9219. If you make a floating connection between the signal source and the NI 9219, make sure the voltages on the positive and negative connections are within the channel-to-earth working voltage range to ensure proper operation of the NI 9219.
  • Page 11 Signal Source – Ground Reference Figure 3. Connecting a Grounded Signal Source to the NI 9219 Signal Source – Figure 4. Connecting a Floating Signal Source to the NI 9219 © National Instruments Corp. Twisted-Pair Shielding Twisted-Pair Shielding Wiring NI 9219...
  • Page 12 NI 9219 Timing Options The NI 9219 supports four different timing options that are optimized for different types of applications by using different ADC conversion times. High Speed is optimized for high speed at the expense of noise rejection, Best 60 Hz Rejection is optimized...
  • Page 13 Voltage and Current Modes In Voltage and Current modes, connect the signal source to the NI 9219 across the HI and LO terminals. The current is computed from the voltage that the ADC measures across an internal shunt resistor. Refer to Figure 6 for an illustration of the connections.
  • Page 14 3-Wire RTD mode sources a current, which varies based on the resistance of the load, between the EX+ and EX– terminals. This mode compensates for lead wire resistance in hardware if all the NI 9219 Operating Instructions Wire Wire Wire EX–...
  • Page 15 2-Wire Resistance and Quarter-Bridge Modes In 2-Wire Resistance and Quarter-Bridge modes, connect the two ends of the resistor or gauge to the NI 9219 across the HI and LO terminals. These modes source a current, which varies based on the resistance of the load, between the HI and LO terminals. The resulting resistance is computed from the voltage measurement.
  • Page 16 In Half-Bridge mode, the HI input is referenced to EX–. In Full-Bridge mode, the ADC reads the HI and LO inputs differentially. Refer to Figure 10 for an illustration of the connections. NI 9219 Operating Instructions Specifications NI 9219 section for...
  • Page 17 Use shielded cables and twisted pair wiring and ground the shielded cables. Each channel has a built-in thermistor for cold-junction compensation (CJC) calculations. For improved CJC sensor accuracy, operate the NI 9219 in a stable temperature © National Instruments Corp. Wire EX–...
  • Page 18 Refer to the Specifications section for more information about accuracy. The NI 9219 does not support open thermocouple detection. Refer to Figure 11 for an illustration of the connections. –...

  • Page 19: Sleep Mode

    In sleep mode, the system consumes minimal power and may dissipate less heat than it does in normal mode. Refer to the Specifications section for more information about power consumption and thermal dissipation. © National Instruments Corp. NI 9219 Operating Instructions...

  • Page 20: Specifications

    Binary Data NI 9219 modules in the system return calibrated binary data when used in a CompactRIO chassis. For these modules, you can convert the data to engineering units in software. Refer to the software documentation for information about converting data. When used in a CompactDAQ chassis, NI 9219 modules automatically return the data in terms of engineering units.

  • Page 21: Input Characteristics

    ±1 V, ±125 mV ±25 mA ±125 mV Pt 1000, Pt 100 350 Ω, 120 Ω ±500 mV/V NI 9219 Operating Instructions Actual Range(s) ±60 V, ±15 V, ±4 V, ±1 V, ±125 mV ±25 mA 10.5 kΩ, 1.05 kΩ...

  • Page 22: Best 60 Hz Rejection

    Best 50 Hz rejection ... 140 ms for all channels High resolution... 510 ms for all channels Overvoltage protection Terminals 1 and 2 ... ±30 V Terminals 3 through 6, across any combination ... ±60 V NI 9219 Operating Instructions Nominal Range(s) ±62.5 mV/V, ±7.8 mV/V — —...
  • Page 23 Max (–40 to 70 °C) ±0.3, ±0.4 ±20, ±50 ±0.3, ±0.4 ±60, ±180 ±0.3, ±0.4 ±240, ±720 ±0.1, ±0.18 ±15, ±45 ±0.1, ±0.18 ±120, ±360 ±0.1, ±0.6 ±30, ±100 ±0.1, ±0.5 ±120, ±320 ±0.1, ±0.5 ±1200, ±3200 NI 9219 Operating Instructions...
  • Page 24 2-Wire Resistance mode accuracy depends on the lead wire resistance. This table assumes 0 Ω of lead wire resistance. Cold-junction compensation sensor accuracy ... ±1°C typ NI 9219 Operating Instructions Gain Error (% of Reading) Typ (25 °C, ±5 °C), Max (–40 to 70 °C)
  • Page 25 (ppm of Reading/°C) ±20 ±20 ±20 ±10 ± 125 mV ±10 ±15 ±15 ±15 ±15 ±15 ±15 ±15 Offset Drift (ppm of Range/°C) ±0.2 ±0.8 ±3.2 ±0.2 ±1.6 ±0.4 ±3 ±30 ±6 ±60 ±120 ±240 ±3 ±20 NI 9219 Operating Instructions...
  • Page 26 Input noise in ppm of Range Mode, Range Voltage, ±60 V Voltage, ±15 V Voltage, ±4 V Voltage, ±1 V Voltage/Thermocouple, ±125 mV Current, ±25 mA NI 9219 Operating Instructions Gain Drift (ppm of Reading/°C) ±3 ±3 Conversion Time Best High...
  • Page 27 Quarter-Bridge, 350 Ω Quarter-Bridge, 120 Ω ± Half-Bridge, 500 mV/V ± Full-Bridge, 62.5 mV/V ± Full-Bridge, 7.8 mV/V © National Instruments Corp. Conversion Time Best High 60 Hz speed rejection rejection 10.8 NI 9219 Operating Instructions Best High 50 Hz reso- lution...

  • Page 28: Table Of Contents

    Best 50 Hz rejection ... 80 dB at 50 Hz High resolution... 65 dB at 50 Hz and 60 Hz Excitation level for Half-Bridge and Full-Bridge modes Mode Half-Bridge Half-Bridge Full-Bridge Full-Bridge NI 9219 Operating Instructions Load Resistance (Ω) Excitation (V) ni.com...

  • Page 29: Power Requirements

    Power Requirements Power consumption from chassis Active mode ... 750 mW max Sleep mode ... 25 μW max © National Instruments Corp. Excitation (mV) 2200 Bellcore Issue 6, Method 1, Case 3, Limited Part Stress Method NI 9219 Operating Instructions...

  • Page 30: Physical Characteristics

    Connect only voltages that are within these limits. Isolation Channel-to-channel Continuous ... 250 VAC, Withstand ... 1390 VAC, verified by a 5 s NI 9219 Operating Instructions conductor wire with 7 mm (0.28 in.) of insulation stripped from the end Measurement Category II dielectric withstand test ni.com...
  • Page 31 This category refers to local-level electrical distribution, such as that provided by a standard wall outlet, for example, 115 V for U.S. or 230 V for Europe. Do not connect the NI 9219 to signals or use for measurements within Measurement Categories III or IV.
  • Page 32 U.S. (UL) ... Class I, Division 2, Environmental National Instruments C Series modules are intended for indoor use only but may be used outdoors if installed in a suitable enclosure. Refer to the installation instructions for the chassis you are using for more information about meeting these specifications.

  • Page 33: Electromagnetic Compatibility

    EN 55011 Emissions; Group 1, Class A • CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A © National Instruments Corp. , 10 to 500 Hz 50 g, 3 ms half sine, 18 shocks at 6 orientations NI 9219 Operating Instructions...

  • Page 34: Waste Electrical And Electronic Equipment (Weee)

    WEEE recycling center. For more information about WEEE recycling centers and National Instruments WEEE initiatives, visit environment/weee.htm NI 9219 Operating Instructions , search by module number or At the end of their life cycle, all products ni.com/...

  • Page 35: Where To Go For Support

    NI 9219 at ni.com/calibration Calibration interval ... 1 year Where to Go for Support The National Instruments Web site is your complete resource for technical support. At you have access to ni.com/support everything from troubleshooting and application development self-help resources to email and phone assistance from NI Application Engineers.
  • Page 36 Turkey 90 212 279 3031, United Kingdom 44 (0) 1635 523545 National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on ni.com/legal for more information about National Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies.

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