Sound and Vibration Data Acquisition
NI 9233 Specifications
>>
For complete specifications, see the
NI 9233 Operating
NI 9234 Specifications
>>
For complete specifications, see the
NI 9234 Operating
Instructions and Specifications
at
ni.com/manuals.
The following specifications are typical for the range 0 to 60 °C unless
otherwise noted.
Instructions and Specifications
at
ni.com/manuals.
The following specifications are typical for the range 0 to 60 °C unless
otherwise noted.
Input Characteristics
Number of channels............................ 4 analog input
ADC resolution.................................... 24 bits
Type of ADC ....................................... Delta-sigma
(with analog prefiltering)
Data rate (fs)
Minimum......................................... 2 kS/s
Maximum........................................ 50 kS/s
Master timebase (internal)
Frequency........................................ 12.8 MHz
Accuracy ......................................... ±100 ppm max
Input coupling ................................. AC
AC cutoff frequency
-3 dB................................................ 0.5 Hz typ
-0.1 dB............................................. 4.2 Hz max
AC voltage full-scale range
Typical ............................................. 5.4 V
pk
Minimum......................................... 5 V
pk
Maximum........................................ 5.8 V
pk
Common-mode voltage
(AI- to earth ground) ....................... ±2 V
IEPE excitation current
Minimum......................................... 2.0 mA
Typical ............................................. 2.2 mA
IEPE compliance voltage ................ 19 V max
Overvoltage protection (with respect to chassis ground)
For an IEPE sensor connected
to AI+ and AI- ................................. ±30 V
For a low-impedance source connected
to AI+ and AI- ................................. -6 to 30 V
Input Characteristics
Number of channels............................ 4 analog input
ADC resolution.................................... 24 bits
Type of ADC ........................................ Delta-sigma
(with analog prefiltering)
Data rate (fs)
Minimum......................................... 1.65 kS/s
Maximum........................................ 51.2 kS/s
Master timebase (internal)
Frequency........................................ 13.1 MHz
Accuracy ......................................... ±50 ppm max
Input coupling ..................................... Software-selectable AC/DC
AC cutoff frequency
-3 dB................................................ 0.5 Hz typ
-0.1 dB............................................. 4.6 Hz max
AC voltage full-scale range
Typical ............................................. 5.1 V
pk
Minimum......................................... 5 V
pk
Maximum........................................ 5.2 V
pk
Common-mode voltage
(AI- to earth ground) ....................... ±2 V
IEPE excitation current
Minimum......................................... 2.0 mA
Typical ............................................. 2.1 mA
IEPE compliance voltage..................... 19 V max
Overvoltage protection (with respect to chassis ground)
For an IEPE sensor connected
to AI+ and AI- ................................. ±30 V
For a low-impedance source connected
to AI+ and AI- ................................. -6 to 30 V
Accuracy (0 to 60 °C)
Error
Calibrated max
Calibrated typ
Uncalibrated max
Accuracy
±0.3 dB
±0.1 dB
±0.6 dB
Accuracy (0 to 60 °C)
Error
Calibrated max
Calibrated typ
Uncalibrated max
Accuracy
±0.3 dB
±0.002 dB
±0.16 dB
BUY ONLINE
at
ni.com
or
CALL 800 813 3693 (U.S.)
5
NI [ NATIONAL INSTRUMENTS CORPORATION ]
