Instruction/ maintenance manual of the product NI 9481E National Instruments
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OPERATING INSTRUCTIONS AND S PECIFICATIONS NI 9481E 4-Channel SPST Electrom echanical Relay Mo dule.
NI 9481E Operating I nstructio ns and Specifica tions 2 ni.com This document describes ho w to use the National Instruments 9481E and includes dimensions , terminal assignments, an d specifi cations for the NI 9481E. V isit ni.com/info and enter rdsoftwareversion to determine which softw are you ne ed for the modules you are using.
© National Inst ruments Corp. 3 NI 9481E Operating In structions and Specificat ions NI 9481E Dimensions The following f igure show s the dimensions of the NI 9481E. Figure 1. NI 9481E Dimens ions in Mi llimeters (Inc hes) 73.4 (2.89) 0.0 (0.00) 26.7 (1.
NI 9481E Operating I nstructio ns and Specifica tions 4 ni.com Connecting the NI 9481E The NI 9481E has a 10-terminal detachable scre w-terminal connector that prov ides connectio ns for four el ectromechanical relay channels.
© National Inst ruments Corp. 5 NI 9481E Operating In structions and Specificat ions Each electromechani cal relay ch annel has two inter changeable terminals, CHa and CHb . Each channel has an L ED that indicates the st ate of the channel. When a channel LED is lit, the channel i s on.
NI 9481E Operating I nstructio ns and Specifica tions 6 ni.com Note Y ou must use 2-wire ferrules to create a secure connection when connecting mo re than one wire to a sin gle term ina l on the NI 9481E. When the channel is turned on, th e terminal connected to the load dri ves current or appl ies v oltage to the load.
© National Inst ruments Corp. 7 NI 9481E Operating In structions and Specificat ions Specifications The follo wing specificat ions are typical for the range – 40 to 85 °C unless otherwise noted. Output Characteristics Number of channels ..........
NI 9481E Operating I nstructio ns and Specifica tions 8 ni.com Resistance per c hannel, channel on ............. ........... ............ ..... 5 0 m Ω Switching rate ..... ............. .............. ... 1 operation pe r second Relay release t ime .
© National Inst ruments Corp. 9 NI 9481E Operating In structions and Specificat ions Power Requirements Power consumption from chassis Active mode .............. ............ ..... 580 mW max Sleep mode ................ ............ ..... 5 m W max Thermal dissipation (at 70 °C) Active mode .
NI 9481E Operating I nstructions a nd Specificati ons 10 ni.com Safety Safety Voltages Connect only v oltages that are within the follo wing limits. CHa-to-CHb .
© National Inst ruments Corp. 11 NI 9481E Operating In structions and Specificat ions Channel-to-earth ground Continuous .......... ............ .....
NI 9481E Operating I nstructions a nd Specificati ons 12 ni.com Environmental National Instruments C Series modules are in tended for indoor use only but may be used outdoors if inst alled in a suitable enclosure. Refer to the manual for the chassis you are using for more information about meetin g these specif ications.
© National Inst ruments Corp. 13 NI 9481E Operating In structions and Specificat ions Environmental Mana gement NI is committed to designing a nd manufacturing products in an en vironmentally responsible manner . NI recognizes that eliminating certain ha zardous substances from our products is benef icial to th e envi ronment and t o NI customers.
NI 9481E Operating I nstructions a nd Specificati ons 14 ni.com Where to Go for Support The National Instruments W eb site is your complete resource for technical support.
© National Inst ruments Corp. 15 NI 9481E Operating In structions and Specificat ions telephone support outside the Un ited States, con tact your local branch off ice: Australia 1800 300 800, Austria.
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An important point after buying a device National Instruments NI 9481E (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought National Instruments NI 9481E yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data National Instruments NI 9481E - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, National Instruments NI 9481E you will learn all the available features of the product, as well as information on its operation. The information that you get National Instruments NI 9481E will certainly help you make a decision on the purchase.
If you already are a holder of National Instruments NI 9481E, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime National Instruments NI 9481E.
However, one of the most important roles played by the user manual is to help in solving problems with National Instruments NI 9481E. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device National Instruments NI 9481E along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
