Portable, Modular Signal Conditioning Modules
NI SCC-ACC01 Accelerometer Input
Specifications
SCC-ACC01
Analog Input
Number of input channels ..................
Input range..........................................
Input coupling .....................................
-3 dB cutoff frequency....................
Filter type ............................................
-3 dB cutoff frequency....................
Passband flatness...............................
1 differential
±5 VAC (fixed gain of 2)
AC
0.8 Hz
Lowpass 3-pole Bessel
19 kHz
±0.3 dB, 10 Hz to 5 kHz
±1 dB, 5 Hz to 10 kHz
Model
SCC-ACC01
Channel
1
Description
Accelerometer input
Part Number
777459-19
The National Instruments SCC-ACC01 is a single-channel module that
accepts Integrated Electronic Piezoelectric (IEPE) compatible sensors
such as accelerometers and microphones. The NI SCC-ACC01 has an
amplifier with a gain of two, a 0.8 Hz highpass filter, and a 19 kHz
3-pole Bessel lowpass filter. The maximum input range is ±5 V. In
addition, this module has a 4 mA current source to power an
accelerometer or microphone.
When you install the SCC-ACC01 into the SC-2345, the carrier routes
the single output voltage to one input channel of the multifunction DAQ
device, channel x, where x is 0 through 7. For example, if installed into
the J1 socket of the SC-2345, the output voltage is routed to input
channel 0 of the DAQ device.
Maximum working voltage
(signal + common mode) ................ Each input should remain within
±12 V of ground
Overvoltage protection ....................... ±40 VAC + DC (powered on
or off)
Input impedance ................................. 5 MΩ in series with 0.39 µF
(powered on or off)
System noise....................................... 130 µV
rms
(referred to input)
Transfer Characteristics
Gain ....................................................
Gain error ............................................
Gain-error temperature coefficient.....
Offset error..........................................
Offset-error temperature coefficient ..
Nonlinearity.........................................
Recommended warm-up time.............
2
±1%
±10 ppm/°C
±3 mV (referred to input)
±1.6 µV/°C
10 ppm of full scale
5 minutes
Amplifier Characteristics
CMRR .................................................. 80 dB at 60 Hz
Output range ....................................... ±10 V
Excitation
Number of channels............................
Constant-current source .....................
Maximum voltage level
without losing regulation ...............
Drift ....................................................
1
4 mA
24 V
±127 ppm/°C
Environment
Operating temperature ....................... 0 to 50 °C
Relative humidity ................................ 5 to 90% noncondensing
Power Requirements
Analog ................................................. 89 mW
Digital.................................................. 420 mW
BUY ONLINE
at
ni.com
or
CALL 800 813 3693 (U.S.)
8
NI [ NATIONAL INSTRUMENTS CORPORATION ]
