Maximum working voltage, Isolation voltages, Environmental – National Instruments Isolated Analog Input Device NI PXI-4224 User Manual

Page 54

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Appendix A

Specifications for

© National Instruments Corporation

A-5

NI PXI-4224 User Manual

Weight .................................................... 279 g (9.8 oz)

Analog input signal connector ............... 25-Pin D-SUB

Maximum Working Voltage

(Signal + common-mode) each input should remain within 42.4 V

peak

or

60 VDC of ground.

Maximum working voltage refers to the signal voltage plus the CMV.

Channel-to-earth (inputs) ....................... 42.4 V

peak

or 60 VDC,

Measurement Category I

Channel-to-channel (inputs)................... 42.4 V

peak

or 60 VDC,

Measurement Category I

Caution

This device is rated for Measurement Category I and is intended to carry signal

voltages no greater than 42.4V

peak

or 60 VDC. Do not use this device for connection to

signals or for measurements within Categories II, III, or IV.

Isolation Voltages

Channel-to-channel, channel-to-earth isolation

Continuous ...................................... 60 VDC,

Measurement Category I

Withstand ........................................ 850 V

rms

verified by a 5 s

dielectric withstand type test

Channel-to-bus

Continuous ...................................... 60 VDC,

Measurement Category I

Withstand ........................................ 1400 V

rms

verified by a 5 s

dielectric withstand type test

Environmental

Operating temperature............................ 0 to 55 °C

Storage temperature ............................... –40 to 70 °C

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

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

Pollution Degree (indoor use only) ........ 2

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