Electrical pulses in SCB-68 Terminal block

[karthik_sampath]

I am trying to measure signals from a machine, but SCB-68 channel box is not properly shielded. It picks up electrical pulses from the machine even when there are no signals being input. What is the best way to shield or ground the SCB-68 channel box? I have tried to use shielding wire but it doesnt help mcuh.

Karthik

[Dr._Imad]

what kind of noise is that? 60/50 Hz ?, and what is the frequency range of the measurements ? DC to a Maximum ?
you may ground the box itself, and you may pass the wire signals in metallic conduits if possible, that should help ?
You may consider also using an analog filter (or a digital filter) to filter out noise.

[Salvador_Santolucito]

Hi Karthik,

What does this noise look like? Could you open one of the continuous voltage acquisition shipping examples and take a screenshot? Is this noise in the millivolt range or larger? What does your wiring configuration look like? Are you using differential, RSE or NRSE for your input configuration?

-Sal