777459-03 Datasheet, PDF (11/17 Pages) National Instruments Corporation – SCC Configuration Guide

Portable, Modular Signal Conditioning Modules
NI SCC-A10 Voltage Attenuator
Model
SCC-A10
Channel
2
Description
Attenuator input
Part Number
777459-06
The National Instruments SCC-A10 is a dual-channel module that
accepts input voltage sources up to 60 VDC. Each channel of the
NI SCC-A10 includes a 10:1 attenuation circuit and differential
instrumentation amplifier with low-impedance outputs for maximum
scanning rates by the multifunction DAQ device. The attenuation circuit
includes high-impedance bias resistors, so you can connect floating or
ground-referenced inputs to the SCC-A10 without adding external bias
resistors. The SCC-A10 also provides overvoltage protection (up to
250 V_rms) for your DAQ system.
When you install an SCC-A10 module in the SC-2345, the carrier
routes the attenuated input signals to two input channels of the DAQ
device, channels x and x+8, where x is 0 through 7.
Specifications
SCC-A10
Input Characteristics
Number of channels............................
Input range..........................................
Output range .......................................
Gain error ............................................
Offset error..........................................
Input impedance
Normal powered on or off..............
Full power bandwidth .........................
2 differential
±60 VDC
±6 VDC
±0.14% of reading, maximum
±6.5 mV maximum (referred
to input)
1 MΩ
10 kHz
Power Requirements
Analog ................................................. 90 mW
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