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NI USB-9481 User Guide and Specifications

ni.com

Note

For UL and other safety certifications, refer to the product label or visit

ni.com/certification

, search by model number or product line, and click the

appropriate link in the Certification column.

Hazardous Locations

The NI USB-9481 is not certified for use in hazardous locations.

Environmental

The NI USB-9481 device is intended for indoor use only.

Operating temperature ............................0 to 60 °C

Storage temperature ................................–40 to 85 °C

Humidity .................................................10 to 90% RH, noncondensing

Maximum altitude...................................2,000 m

Pollution Degree (IEC 60664) ................2

Electromagnetic Compatibility

This product is designed to meet the requirements of the following
standards of EMC for electrical equipment for measurement, control,
and laboratory use:

•

EN 61326 EMC requirements; Minimum 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 double-shielded cables.

CE Compliance

This product meets the essential requirements of applicable European
Directives, as amended for CE marking, as follows:

•

2006/95/EC; Low-Voltage Directive (safety)

•

2004/108/EC; Electromagnetic Compatibility Directive (EMC)

Note

Refer to the Declaration of Conformity (DoC) for this product for any additional

regulatory compliance information. To obtain the DoC for this product, visit

ni.com/certification

, search by module number or product line, and click the

appropriate link in the Certification column.

Содержание USB-9481

Страница 1: ...tion The NI USB 9481 provides a USB interface for four channels of single pole single throw SPST form A relays The NI USB 9481 consists of two components an NI 9481 module and an NI USB 9162 carrier as shown in Figure 1 Figure 1 NI USB 9481 Components NI 9481 NI USB 9162 NI USB 9481 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 6 2 ...

Страница 2: ...imited Refer to the Specifications section for more details Hot Surface This icon denotes that the component may be hot Touching this component may result in bodily injury Caution Do not disconnect I O side wires or connectors unless power has been switched off or the area is known to be nonhazardous Caution Do not remove modules unless power has been switched off or the area is known to be nonhaz...

Страница 3: ...ackshell section for more information Related Documentation Each application software package and driver includes information about writing applications for taking measurements and controlling measurement devices The following 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 S...

Страница 4: ...bVIEW using the DAQ Assistant VI and Function Reference Measurement I O 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 Acquis...

Страница 5: ...ect type You add DAQ tasks as a part of this step ANSI C without NI Application Software The NI DAQmx Help contains API overviews 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 ...

Страница 6: ... Document Browser at any time by inserting the CD After 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 enro...

Страница 7: ...ice Refer to the Installing the Software section of this guide and the documentation included with the software for more information Installing the NI 9481 Device into the NI USB 9162 Carrier The NI 9481 module and NI USB 9162 carrier are packaged separately Refer to Figure 3 while completing the following assembly steps 1 Make sure that no signals are connected to the NI 9481 module and the USB c...

Страница 8: ...lace as shown in Figure 4 Figure 4 Locking Module into Place Mounting the NI USB 9481 to a Panel Threaded inserts are located in the NI USB 9481 for mounting it to a panel Refer to Figure 5 for dimensions Figure 5 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: ...ed the device must be connected to a computer that has NI DAQmx installed on it If your device is not blinking make sure your computer has the latest version of NI DAQmx installed on it and the computer is not in standby mode Wiring the NI USB 9481 Device The NI USB 9481 has a 10 terminal detachable high voltage screw terminal enclosure that provides connections for four electromechanical relay ch...

Страница 10: ...onnect loads to the NI USB 9481 Connect the load to one of the leads of the power source Connect either the CHa or the CHb terminal to the load and the other terminal to the other lead of the power source Figure 6 shows a possible configuration Figure 6 Connecting a Load to the NI USB 9481 Table 2 Terminal Assignments Module Terminal Signal 0 CH0a 1 CH0b 2 CH1a 3 CH1b 4 CH2a 5 CH2b 6 CH3a 7 CH3b 8...

Страница 11: ...on and off to indicate the state of the channel Assembling the High Voltage Screw Terminal Backshell The high voltage screw terminal backshell must be installed when using hazardous voltages 42 4 Vpk 60 VDC Refer to Figure 7 while completing the following steps to assemble the backshell 1 Connect the leads to the screw terminal and secure with the strain relief 2 Finish by snapping the backshell a...

Страница 12: ...hannel One channel ON 4 A max at 30 VDC 1 A max at 60 VDC 4 A max at 250 Vrms All channels ON 2 A max at 30 VDC 1 A max at 60 VDC 2 A max at 250 Vrms On resistance 50 mΩ typ Switching rate 1 operation per second Relay open time 5 ms max Relay close time 10 ms max Relay bounce time 3 ms typ Off state leakage 10 μA max Expected life cycles Mechanical no load 20 000 000 typ Electrical connecting to l...

Страница 13: ... Category II Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution 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 to signals or use for measurements within Measurement Categories III or IV Safety Isolation Cha...

Страница 14: ...he requirements of the following standards of EMC for electrical equipment for measurement control and laboratory use EN 61326 EMC requirements Minimum 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 double shielded cables CE Compliance This product meets the essential requirements of applicable European ...

Страница 15: ...ironment This page contains the environmental regulations and directives with which NI complies 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 initiat...

Страница 16: ...National 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 Braz...

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