Data Translation DT9820 Series, Getting Started Manual

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Configuring and Attaching the Screw Terminal Panel
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1500 ohms is the resistor value that is used, by default, on the DT9820
Series modules.
0.000001 F is the capacitor value that is used, by default, on the
DT9820 Series modules.
Note: Decreasing the cutoff frequency also decreases the noise
rejection.
Table 3 lists the approximate resistor values to use for certain input
filter cutoff frequencies.
Table 4 lists the locations from which to remove and add resistors to
change the filter cutoff frequencies for analog input channels 0, 1, 2,
and 3 on the STP9820.
Table 3: Resistor Values for Specified Input Filter Values
Input Filter
Cutoff Frequencies (Fc)
Approximate Resistor
Values (R)
2 Hz 76.8 k
Ω
20 Hz 6.34 k
Ω
50 Hz 1.65 k
Ω
60 Hz 1.15 k
Ω