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NI -9204 Getting Started

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NI-9204 Getting
Started
2025-02-21

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Summary of Contents for NI NI-9204

  • Page 1 NI-9204 Getting Started 2025-02-21...
  • Page 2 NI-9204 Getting Started ........

  • Page 3: Connector Types

    NI-9204 Getting Started NI-9204 Getting Started NI-9204 Getting Started Connector Types The NI-9204 has more than one connector type: NI-9204 with spring terminal and NI-9204 with DSUB. Unless the connector type is specified, NI-9204 refers to all connector types. NI-9204 Block Diagram The NI-9204 channels share a common ground (COM) that is isolated from other modules in the system.
  • Page 4 Table 1. Signal Descriptions Signal Description Analog input signal connection AISENSE Reference connection for NRSE measurements Common reference connection to isolated ground Programmable function interface, digital input signal connection RSVD Reserved connection; do not connect any signal NI-9204 with DSUB Pinout ni.com...
  • Page 5 Reserved connection; do not connect any signal NI-9204 Signals You can connect single-ended or differential signals to the NI-9204; use a differential measurement configuration to attain more accurate measurements and less noise. Specific signal pairs are valid for differential connections.

  • Page 6: Connecting Grounded Differential Signals

    AI1 (CH1+) – AI9 (CH1–) NI 9204 In a differential configuration, the NI-9204 rejects the common-mode noise voltage during the measurement of V . To connect grounded differential signals to the NI-9204, you must also connect the signal reference to COM.

  • Page 7: Connecting Rse Voltage Signals

    – NI 9204 In an RSE configuration, the NI-9204 measures each channel with respect to COM. To connect RSE signals to the NI-9204, you must connect the voltage ground signal to COM to keep the maximum working voltage in the specified range.
  • Page 8 AISENSE NI 9204 In an NRSE configuration, the NI-9204 measures each channel with respect to AISENSE. An NRSE configuration provides remote sense for the negative input of the PGIA that is shared by all channels and also provides improved noise rejection compared to an RSE connection.

  • Page 9: High-Vibration Application Connections

    High-Vibration Application Connections If your application is subject to high vibration, NI recommends that you use the NI-9940 backshell kit to protect connections to the NI-9204 with spring terminal. © National Instruments...

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