User Guide

Appendix A Specifications
NI 5911 User Manual A-8 ni.com
Operating Environment
Note
Multiple NI 5911s in the same computer may raise operating temperatures beyond
specification and give rise to imprecise data. NI strongly recommends leaving an empty
PCI slot between multiple NI 5911s or adding a fan.
Ambient temperature ..............................5 to 40 °C
Relative humidity ...................................10% to 90%, noncondensing
Storage Environment
Ambient temperature ..............................–20 to 65 °C
EMC Compliance
CE2001, FCC
Calibration
Internal....................................................Internal calibration is done upon
software command. The
calibration involves gain, offset
and linearity correction for all
input ranges and input modes.
Interval.............................................1 week, or any time temperature
changes beyond ±5 °C. Hardware
detects temperature variations
beyond calibration limits, which
can also be queried by software.
External...................................................Internal reference requires
recalibration
Interval.............................................1 year
Warm-up time.........................................1 minute