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Содержание NI USB-9219

Страница 1: ...uction 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 Figure 1 NI USB 9219 Components NI 9219 NI USB 9162 NI USB 9219 H i S P e e d U S B C a r r i e r N I U S B 9 1 6 2 H i S p e e d U S B C a r r i e r N I U S B 9 1...

Страница 2: ...ages If hazardous voltages are connected to the module take the following precautions A hazardous voltage is a voltage greater than 42 4 Vpk or 60 VDC to earth ground Caution Ensure that hazardous voltage wiring is performed only by qualified personnel adhering to local electrical standards Caution Do not mix hazardous voltage circuits and human accessible circuits on the same module Caution Make ...

Страница 3: ...ng references to documents assume you have NI DAQmx 8 7 or later and where applicable version 7 1 or later of the NI application software NI DAQmx for Windows The DAQ Getting Started Guide describes how to install your NI DAQmx for Windows software your NI DAQmx supported DAQ device and how to confirm that your device is operating properly Select Start All Programs National Instruments NI DAQ DAQ ...

Страница 4: ... VIs and Functions Describes the LabVIEW NI DAQmx VIs and properties Taking Measurements Contains the conceptual and how to information you need to acquire and analyze measurement data in LabVIEW including common measurements measurement fundamentals NI DAQmx key concepts and device considerations LabWindows CVI The Data Acquisition book of the LabWindows CVI Help contains measurement concepts for...

Страница 5: ...s and general information about measurement concepts 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 ...

Страница 6: ...r installing the Device Document Browser device documents are accessible from Start All Programs National Instruments NI DAQ Browse Device Documentation Note You can also download these documents at ni com manuals Training Courses If you need more help getting started developing an application with NI products NI offers training courses To enroll in a course or obtain a detailed course outline ref...

Страница 7: ... with the device Refer to the Installing the Software section of this guide and the documentation included with the software for more information Installing the NI USB 9219 Device into the NI USB 9162 Carrier The NI USB 9219 module and NI USB 9162 carrier are packaged separately Refer to Figure 4 while completing the following assembly steps 1 Make sure that no signals are connected to the NI USB ...

Страница 8: ...5 Figure 5 Locking Module into Place 6 Connect the USB cable to the assembled NI USB 9219 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 Figure 6 Module Dimensions In Millimeters Inches 72 2 mm 2 84 in 85 7 mm 3 37 in 76 1 mm 3 00 in Threaded Insert M3 x 0 5 8 5 mm 0 34 in Max Depth ...

Страница 9: ...connected to a USB port the LED blinks steadily to indicate that the device is initialized and is receiving power from the connection If the LED is not blinking it may mean that the device is not initialized or the computer is in standby mode In order for the device to be recognized the device must be connected to a computer that has NI DAQmx installed on it If your device is not blinking make sur...

Страница 10: ... terminals if your sensor requires a separate excitation connection Refer to Table 3 for the signal names and Table 4 for the terminal assignments for each mode Refer to the NI USB 9219 Circuitry section for information about connections in each mode Table 2 Accessories Accessory Accessory Description NI 9972 Strain relief for 6 position spring terminal NI 9973 6 position connectors Table 3 Signal...

Страница 11: ...iver to clamp the wire into the terminal Refer to the Specifications section for more information about spring terminal wiring Refer to Figure 7 for an illustration of connecting wires to the NI USB 9219 Figure 7 Connecting Wires to the NI USB 9219 Connectors Table 4 Terminal Assignments Mode Terminal 1 2 3 4 5 6 Voltage T T HI LO Current T T HI LO 4 Wire Resistance T T EX HI EX LO 2 Wire Resistan...

Страница 12: ...e 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 Refer to the Specifications section for more information about operating voltages and overvoltage protection Note For best signal quality National Instruments recommends using shielded cables and twisted pair wiring whenever possible Figur...

Страница 13: ... Four 24 bit analog to digital converters ADCs simultaneously sample all four analog input channels An excitation circuit is enabled for all input modes that require excitation 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 Figure 10 Input Circuitry for...

Страница 14: ...e connections Figure 12 Connections in 4 Wire Resistance and 4 Wire RTD Modes 3 Wire RTD Mode 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 lead wires have the same resistance A gain of 2x is applied to the voltage across the negative lead wire and the ADC uses...

Страница 15: ...r Bridge Modes Half Bridge and Full Bridge Modes Half Bridge and Full Bridge modes use the internal voltage excitation to set the input range of the ADC and return voltage readings that are proportional to the excitation level The internal excitation voltage is nominally 2 5 V but it varies based on the resistance of the sensor Refer to the Specifications section for more information about excitat...

Страница 16: ...nvironment and avoid placing heat sources near the module or its connectors Refer to the Specifications section for more information about accuracy The NI USB 9219 does not support open thermocouple detection Refer to Figure 16 for an illustration of the connections Figure 16 Connections in Thermocouple Mode Excitation Protection The NI USB 9219 excitation circuit is protected from overcurrent and...

Страница 17: ... Hz Rejection 110 ms for all channels Best 50 Hz Rejection 130 ms for all channels High Resolution 500 ms for all channels Conversion time one or more channels in TC mode High Speed 20 ms for all channels Best 60 Hz Rejection 120 ms for all channels Best 50 Hz Rejection 140 ms for all channels High Resolution 510 ms for all channels Mode Nominal Range s Actual Range s Voltage 60 V 15 V 4 V 1 V 125...

Страница 18: ...0 Voltage 1 V 0 1 0 18 15 45 Voltage Thermocouple 125 mV 0 1 0 18 120 360 Current 25 mA 0 1 0 6 30 100 4 Wire and 2 Wire Resistance 10 kΩ 0 1 0 5 120 320 4 Wire and 2 Wire Resistance 1 kΩ 0 1 0 5 1 200 3 200 4 Wire and 3 Wire RTD Pt 1 000 0 1 0 5 240 640 4 Wire and 3 Wire RTD Pt 100 0 1 0 5 2 400 6 400 Quarter Bridge 350 Ω 0 1 0 5 2 400 6 400 Quarter Bridge 120 Ω 0 1 0 5 2 400 6 400 Half Bridge 50...

Страница 19: ...V 20 0 8 Voltage 4 V 20 3 2 Voltage 1 V 10 0 2 Voltage Thermocouple 125 mV 10 1 6 Current 25 mA 15 0 4 4 Wire and 2 Wire Resistance 10 kΩ 15 3 4 Wire and 2 Wire Resistance 1 kΩ 15 30 4 Wire and 3 Wire RTD Pt 1 000 15 6 4 Wire and 3 Wire RTD Pt 100 15 60 Quarter Bridge 350 Ω 15 120 Quarter Bridge 120 Ω 15 240 Half Bridge 500 mV V 3 20 Full Bridge 62 5 mV V 3 20 Full Bridge 7 8 mV V 3 20 ...

Страница 20: ... 60 V 7 6 1 3 1 3 0 5 Voltage 15 V 10 8 1 9 1 9 0 7 Voltage 4 V 10 8 2 7 2 7 1 3 Voltage 1 V 7 6 1 3 1 3 0 5 Voltage Thermocouple 125 mV 10 8 1 9 1 9 1 0 Current 25 mA 10 8 1 9 1 9 1 0 4 Wire and 2 Wire Resistance 10 kΩ 4 1 1 3 0 8 0 3 4 Wire and 2 Wire Resistance 1 kΩ 7 1 1 8 1 2 0 7 4 Wire and 3 Wire RTD Pt 1 000 7 6 1 7 1 1 0 4 4 Wire and 3 Wire RTD Pt 100 10 8 1 9 1 9 0 9 Quarter Bridge 350 Ω ...

Страница 21: ...from USB 500 mA max Suspend mode 2 5 MA max Bus Interface USB specification USB 2 0 Hi Speed Physical Characteristics Spring terminal wiring 18 to 28 AWG copper conductor wire with 7 mm 0 28 in of insulation stripped from the end Weight 258 g 9 1 oz Mode Load Resistance Ω Excitation V Half Bridge 700 2 5 Half Bridge 240 2 0 Full Bridge 350 2 7 Full Bridge 120 2 2 Load Resistance Ω Excitation mV 12...

Страница 22: ...n system 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 Safety Standards This product is designed to meet the requirements of the following standards of safety for electrical equipment for me...

Страница 23: ...the following standards of EMC for electrical equipment for measurement control and laboratory use EN 61326 EMC requirements Industrial Immunity EN 55011 Emissions Group 1 Class A CE C Tick ICES and FCC Part 15 Emissions Class A Note For EMC compliance operate this device with shielded cabling CE Compliance This product meets the essential requirements of applicable European Directives as amended ...

Страница 24: ... as well as other environmental information not included in this document Waste Electrical and Electronic Equipment WEEE EU Customers At the end of their life cycle all products must be sent to a WEEE recycling center For more information about WEEE recycling centers and National Instruments WEEE initiatives visit ni com environment weee htm Calibration You can obtain the calibration certificate a...

Страница 25: ...ional Instruments also has offices located around the world to help address your support needs For telephone support in the United States create your service request at ni com support and follow the calling instructions or dial 512 795 8248 For telephone support outside the United States contact your local branch office Australia 1800 300 800 Austria 43 662 457990 0 Belgium 32 0 2 757 0020 Brazil ...

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