Table of Contents
Advertisement
Quick Links
USER GUIDE AND SPECIFICATIONS
NI USB-9219
4-Channel, 24-Bit, Universal Analog Input Module
Introduction
This user guide describes how to use the National Instruments USB-9219
and lists the device specifications.
The NI USB-9219 provides a USB interface for four channels of universal
analog input with integrated signal conditioning. The NI USB-9219
consists of two components: an NI 9219 module, and an NI USB-9162
carrier, as shown in Figure 1.
NI 9219
NI USB-9162
Figure 1. NI USB-9219 Components
NI USB-9219
Advertisement
Table of Contents
Related Manuals for National Instruments NI USB-9219
Summary of Contents for National Instruments NI USB-9219
- Page 1 This user guide describes how to use the National Instruments USB-9219 and lists the device specifications. Introduction The NI USB-9219 provides a USB interface for four channels of universal analog input with integrated signal conditioning. The NI USB-9219 consists of two components: an NI 9219 module, and an NI USB-9162 carrier, as shown in Figure 1.
-
Page 2: Safety Guidelines For Hazardous Voltages
(4.751 in.) 118.26 mm (4.656 in.) Safety Guidelines Operate the NI USB-9219 only as described in these operating instructions. Hot Surface This icon denotes that the component may be hot. Touching this component may result in bodily injury. Safety Guidelines for Hazardous Voltages If hazardous voltages are connected to the module, take the following precautions. -
Page 3: Related Documentation
The NI-DAQmx Help contains general information about measurement concepts, key NI-DAQmx concepts, and common applications that are applicable to all programming environments. Select Start» All Programs»National Instruments»NI-DAQ»NI-DAQmx Help. © National Instruments Corporation Figure 3. NI 9972 Connector Backshell NI USB-9219 User Guide and Specifications /60 VDC), you... -
Page 4: Measurement Studio
Visual Studio .NET. You can generate the configuration code based on your task or channel in Measurement Studio. Refer to the DAQ Assistant Help for additional information about generating code. You also NI USB-9219 User Guide and Specifications directory and opening Getting Started»Getting Started with DAQ—Includes overview information and a tutorial to learn how to take an NI-DAQmx measurement in LabVIEW using the DAQ Assistant. -
Page 5: Ansi C Without Ni Application Software
Select Start»All Programs»National Instruments»NI-DAQ»NI-DAQmx Help. The NI-DAQmx C Reference Help describes the NI-DAQmx Library functions, which you can use with National Instruments data acquisition devices to develop instrumentation, acquisition, and control applications. Select Start»All Programs»National Instruments»NI-DAQ» NI-DAQmx C Reference Help. -
Page 6: Installing The Software
Technical Support on the Web For additional support, refer to Installing the Software Software support for the NI USB-9219 for Vista/XP/2000 is provided by NI-DAQmx. The DAQ Getting Started Guide, which you can download at ni.com/manuals installing software and hardware, configuring channels and tasks, and getting started developing an application. -
Page 7: Example Programs
© National Instruments Corporation Installing the Software Make sure that no signals are connected to the NI USB-9219 module and the USB cable is not connected to the device. Remove the protective cover from the 15-pin D-SUB connector. Align the I/O module with the carrier, as shown in Figure 4. - Page 8 Mounting the NI USB-9219 to a Panel Threaded inserts are located in the NI USB-9219 for mounting it to a panel. Refer to Figure 6 for dimensions. NI USB-9219 User Guide and Specifications Press firmly on the connector side of the NI USB-9219 module until the latches lock the module into place, as shown in Figure 5.
-
Page 9: Led Indicator
Connecting the NI USB-9219 to a Computer Plug one end of the USB cable into the NI USB-9219 and the other end into an available USB port on the computer. Refer to the NI-DAQmx for USB Devices Getting Started Guide that shipped with your device, and is also accessible from Start»All Programs»National Instruments»NI-DAQ,... - Page 10 Table 2 illustrates the accessories available from NI USB-9219. The NI USB-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 11 Terminal — – – – – — – – – – – – — – – Figure 7. Connecting Wires to the NI USB-9219 Connectors — — — – — — — – — – — — — – –...
-
Page 12: Grounding And Shielding Considerations
You can connect ground-referenced or floating signal sources to the NI USB-9219. If you make a floating connection between the signal source and the NI USB-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 USB-9219. - Page 13 The ADC and excitation circuits are reconfigured in each mode to accommodate each type of sensor. Refer to Figure 10 for an illustration of the input circuitry for one channel of the NI USB-9219. Voltage and Current Modes In Voltage and Current modes, connect the signal source to the NI USB-9219 across the HI and LO terminals.
- Page 14 ADC uses this voltage as the negative reference to cancel the resistance error across the positive lead wire. Refer to Figure 13 for an illustration of the connections. NI USB-9219 User Guide and Specifications Wire Wire RTD/...
- 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 USB-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.
-
Page 16: Excitation Protection
Each channel has a built-in thermistor for cold-junction compensation (CJC) calculations. For improved CJC sensor accuracy, operate the NI USB-9219 in a stable temperature environment and avoid placing heat sources near the module or its connectors. -
Page 17: Specifications
Actual Range(s) ±60 V, ±15 V, ±4 V, ±1 V, ±125 mV ±25 mA 10.5 kΩ, 1.05 kΩ ±125 mV 5.05 kΩ, 505 Ω 390 Ω, 150 Ω ±500 mV/V ±62.5 mV/V, ±7.8125 mV/V NI USB-9219 User Guide and Specifications... - Page 18 2-Wire Resistance mode accuracy depends on the lead wire resistance. This table assumes 0 Ω of lead wire resistance. † Typ (25 °C, ±5 °C), Max (–40 to 70 °C) Cold-junction compensation sensor accuracy...±1°C typ NI USB-9219 User Guide and Specifications Terminals 1 and 2 ...±30 V Terminals 3 through 6, across any combination ...±60 V Voltage and Digital In modes (±60 V, ±15 V, ±4 V) ...1 MΩ...
- Page 19 Reading/°C) ±20 ±20 ±20 ±10 ±10 ±15 ±15 ±15 ±15 ±15 ±15 ±15 ±3 ±3 ±3 NI USB-9219 User Guide and Specifications Offset Drift (ppm of Range/°C) ±0.2 ±0.8 ±3.2 ±0.2 ±1.6 ±0.4 ±3 ±30 ±6 ±60 ±120 ±240 ±20 ±20...
- Page 20 ± Full-Bridge, 62.5 mV/V ± Full-Bridge, 7.8 mV/V ± Input bias current ...<1 nA INL...±15 ppm CMRR (f NMRR NI USB-9219 User Guide and Specifications Best High 60 Hz Speed Rejection 10.8 10.8 10.8 10.8 10.8 = 60 Hz)...>100 dB Best 60 Hz Rejection ...90 dB at 60 Hz...
-
Page 21: Power Requirements
Load Resistance (Ω) Load Resistance (Ω) Suspend mode ... 2.5 MA, max USB specification ... USB 2.0 Hi-Speed Excitation (V) Excitation (mV) 2,200 wire with 7 mm (0.28 in.) of insulation stripped from the end NI USB-9219 User Guide and Specifications... -
Page 22: Safety Voltages
, search by module number or product line, and click the appropriate link certification in the Certification column. Hazardous Locations The USB-9219 is not certified for use in hazardous locations. NI USB-9219 User Guide and Specifications Channel-to-channel Continuous ...250 VAC, Withstand ...1390 VAC, verified by a Channel-to-earth ground Continuous ...250 VAC,... -
Page 23: Electromagnetic Compatibility
© National Instruments Corporation EN 61326 EMC requirements; Industrial Immunity EN 55011 Emissions; Group 1, Class A CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A 2006/95/EC; Low-Voltage Directive (safety) 2004/108/EC; Electromagnetic Compatibility Directive (EMC) ni.com/ NI USB-9219 User Guide and Specifications... -
Page 24: Environmental Management
Waste Electrical and Electronic Equipment (WEEE) At the end of their life cycle, all products must be sent to a WEEE recycling EU Customers center. For more information about WEEE recycling centers and National Instruments WEEE initiatives, visit National Instruments... -
Page 25: Where To Go For Support
Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents.