National Instruments NI 9481 - Manuals

NI 9481 Operating Instructions and Specifications 6 ni.com Special Conditions for Marine Applications Some mod u les are Lloyd’s Register (LR) Type Approved for marine applications. To verify Lloyd’s Register certification, visit ni.com/certification and search for the LR certificate, or look for th...

NI 9481 Operating Instructions and Specifications 8 ni.com Each electromechanical relay channel has two interchangeable terminals, CHa and CHb. Each channel has an LED that indicates the state of the channel. When a channel LED is lit, the channel is on. When the LED is dark, the channel is off. The...

© National Instruments Corp. 9 NI 9481 Operating Instructions and Specifications Note Yo u m u st u se 2-wire ferr u les to create a sec u re connection when connecting more than one wire to a single terminal on the NI 9481. When the channel is t u rned on, the terminal connected to the load drives ...

© National Instruments Corp. 11 NI 9481 Operating Instructions and Specifications Typically, when a system is in sleep mode, yo u cannot comm u nicate with the mod u les. In sleep mode, the system cons u mes minimal power and may dissipate less heat than it does in normal mode. Refer to the Specific...

NI 9481 Operating Instructions and Specifications 12 ni.com Switching capacity (resistive load) Switching voltage ....................... 60 VDC max, 250 V rms max Switching c u rrent, per channel One channel on .................... 4 A max at 30 VDC, 1 A max at 60 VDC,4 A max at 250 V rms All chann...

© National Instruments Corp. 13 NI 9481 Operating Instructions and Specifications MTBF ............................................... 460,321 ho u rs at 25 °C; Bellcore Iss u e 2, Method 1, Case 3, Limited Part Stress Method Note Contact NI for Bellcore MTBF specifications at other temperat u res o...

NI 9481 Operating Instructions and Specifications 14 ni.com Physical Characteristics If yo u need to clean the mod u le, wipe it with a dry towel. Screw-terminal wiring ...................... 12 to 24 AWG copper cond u ctor wire with 10 mm (0.39 in.) of ins u lation stripped from the end Torq u e fo...

© National Instruments Corp. 15 NI 9481 Operating Instructions and Specifications that provided by a standard wall o u tlet, for example, 115 V for U.S. or 230 V for E u rope. Caution Do not connect the NI 9481 to signals or u se for meas u rements within Meas u rement Categories III or IV. Isolatio...

NI 9481 Operating Instructions and Specifications 16 ni.com Safety Standards This prod u ct meets the req u irements of the following standards of safety for electrical eq u ipment for meas u rement, control, and laboratory u se: • IEC 61010-1, EN 61010-1 • UL 61010-1, CSA 61010-1 Note For UL and ot...

© National Instruments Corp. 17 NI 9481 Operating Instructions and Specifications Note For the standards applied to assess the EMC of this prod u ct, refer to the Online Product Certification section. Note For EMC compliance, operate this device with shielded cabling. CE Compliance This prod u ct me...

NI 9481 Operating Instructions and Specifications 18 ni.com Shock and Vibration To meet these specifications, yo u m u st panel mo u nt the system and either affix ferr u les to the ends of the terminal wires or u se the NI 9932 backshell kit to protect the connections. Operating vibration,sin u soi...

© National Instruments Corp. 19 NI 9481 Operating Instructions and Specifications Operating h u midity (IEC 60068-2-56).............................. 10 to 90% RH, noncondensing Storage h u midity (IEC 60068-2-56).............................. 5 to 95% RH, noncondensing Maxim u m altit u de............

NI 9481 Operating Instructions and Specifications 20 ni.com Waste Electrical and Electronic Equipment (WEEE) EU Customers At the end of the life cycle, all prod u cts must be sent to a WEEE recycling center. For more information abo u t WEEE recycling centers and National Instr u ments WEEE initiati...

© National Instruments Corp. 21 NI 9481 Operating Instructions and Specifications Where to Go for Support The National Instr u ments Web site is yo u r complete reso u rce for technical s u pport. At ni.com/ s upport yo u have access to everything from tro u bleshooting and application development s...