National Instruments Deterministic Ethernet Expansion Chassis NI 9144 User Manual

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National Instruments Deterministic Ethernet Expansion Chassis NI 9144 User Manual Manual pdf 15 page image

© National Instruments Corporation 15 NI 9144 User Guide and SpecificationsMeasurement Category I is for measurements performed on circuits notdirectly connected to the electrical distribution system referred to asMAINS voltage. MAINS is a hazardous live electrical supply system thatpowers equipment. This category is for measurements of voltages fromspecially protected secondary circuits. Such voltage measurements includesignal levels, special equipment, limited-energy parts of equipment,circuits powered by regulated low-voltage sources, and electronics.Caution Do not connect the system to signals or use for measurements withinMeasurement Categories II, III, or IV.Hazardous LocationsU.S. (UL)................................................ Class I, Division 2, Groups A,B, C, D, T4; Class I, Zone 2,AEx nA IIC T4Canada (C-UL)....................................... Class I, Division 2, Groups A,B, C, D, T4; Class I, Zone 2,Ex nA IIC T4Europe (DEMKO).................................. Ex nA IIC T4EnvironmentalThe NI 9144 chassis is intended for indoor use only, but it may be usedoutdoors if mounted in a suitably rated enclosure.Operating temperature(IEC 60068-2-1, IEC 60068-2-2)........... –40 to 70 °CNote To meet this operating temperature range, follow the guidelines in the installationinstructions for your EtherCAT system.Storage temperature(IEC 60068-2-1, IEC 60068-2-2)........... –40 to 85 °CIngress protection ................................... IP 40Operating humidity(IEC 60068-2-56)................................... 10 to 90% RH, noncondensingStorage humidity(IEC 60068-2-56)................................... 5 to 95% RH, noncondensingMaximum altitude .................................. 2,000 mPollution Degree (IEC 60664) ............... 2