SCC-LP Series Lowpass Filter Modules User Guide 6 ni.com

Using the SCC-LPXX when Scaling Voltage Measurements

If you configured the SCC-LPXX using Measurement & Automation
Explorer (MAX) and you are using NI-DAQ, the voltage reading you get
from the ESeries DAQ device accounts for the voltage scaling effect of the
SCC-LPXX. Otherwise, you must scale the readings as follows:
1. Read the SCC-LPXX channel on the ESeries DAQ device
VESERIES (CHX).
2. Calculate the SCC-LPXX voltage using this formula:
VLP = 2VESERIES
where
VLP is the SCC-LPXX input voltage.
VESERIES is the E Series DAQ device input voltage.
Specifications
These ratings are typical at 25 °C unless otherwise stated.

Amplifier Characteristics

Number of input channels.......................2 DIFF
Input signal range ...................................±10 V
Output signal range.................................±5 V
Gain........................................................0.5
Input impedance.....................................10 GΩ in parallel with 10 pF
(powered on)
10 kΩ
(powered off or overloaded)
Gain error................................................Adjustable to 0% of reading
Offset-voltage error................................350 µV typ
(referred to input, RTI)1
1.5 mV max2
1 This specification is calculated relative to the input range of the module.
2 Applicable at 25 °C.