Cooper Instruments & Systems DCM 460 Voltage Bridge Amplifier User Manual

Page 5

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CF 28

5

4/2001

Filter Roll Off Frequency
The table in Figure 4 shows the values for C1 and C2 to set the 3 dB filter frequency. A printed circuit board is
included for convenient mounting of the two capacitors. Use X7R ceramic or foil type capacitors.

Filter

Frequency

C1

To Pin 11

C2

To Pin 10

2000 Hertz None

None

200 Hertz 0.068 μF 0.022

μF

20 Hertz 0.68 μF 0.22

μF

9.4 Hertz 1.5 μF 0.47

μF

Figure 4. Filter Roll Off Frequency

Mechanical Specifications
Specifically designed for rugged field use the DCM 460 is completely encapsulated in epoxy using a vacuum
potting system to insure a complete seal against corrosive environments. It is similarly protected against shock and
vibration and will provide years of reliable and accurate operation.

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