National Instruments NI 9481 Physical Characteristics, Safety

NI 9481 Operating Instructions and Specifications 14 ni.com

Physical Characteristics

If you need to clean the module, wipe it with a dry towel.

Screw-terminal wiring...................... 12 to 24 AWG copper

conductor wire with 10 mm

(0.39 in.) of insulation

stripped from the end

Torque for screw terminals ............... 0.5 to 0.6 N · m

(4.4to 5.3 lb · in.)

Ferrules............................... ..............0.25 mm2 to 2.5 mm2

Weight...............................................150 g (5.3 oz)

Safety

Connect only voltages that are within the following limits.

CHa-to-CHb......................................250 Vrms max,

MeasurementCategory 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