Appendix A
Specifications
©
National Instruments Corporation
A-5
Maximum Working Voltage
Maximum working voltage refers to the signal voltage plus the
common-mode voltage.
Channel-to-earth..................................... Input should remain within ±11 V
of ground. Measurement
Category I
Channel-to-channel ................................ Input should remain within ±11 V
of ground. Measurement
Category I
Caution
Do
not
use for measurements within Measurement Categories II, III, or IV.
Environmental
Operating temperature............................ 0 to 50 °C
Storage temperature ............................... –20 to 70 °C
Humidity ................................................ 10 to 90% RH, noncondensing
Maximum altitude .................................. 2,000 m
Pollution Degree (indoor use only) ........ 2
Safety
The SCXI-1521/B is designed to meet the requirements of the following
standards of safety for electrical equipment for measurement, control, and
laboratory use:
•
IEC 61010-1, EN 61010-1
•
UL 61010-1
•
CAN/CSA-C22.2 No 61010-1
Note
For UL and other safety certifications, refer to the product label, or visit
ni.com/certification
, search by model number or product line, and click the
appropriate link in the Certification column.