MC PCI-DAS1602 Manual do Utilizador descarregar pdf (Página 19)

4.2.6 Isolated Grounds / Single-Ended Inputs

Single-ended inputs can be used to monitor isolated inputs, though the use of the differential mode will

increase your system’s noise immunity. The diagram below shows the recommended connections in this

configuration.

4.2.7 Isolated Grounds / Differential Inputs

Optimum performance with isolated signal sources is ensured with the use of the differential input setting.

The diagram below shows the recommend connections in this configuration.

Isolated Signal Source

Connected to a Single-Ended Input

I/O

Connector

Input

Amp

To A /D

LL GND

CH IN

A/D Board

Isolated

signal

source

Input

Amp

To A/D

A/D Board

I/O

Connector

LL GND

CH High

CH Low

Signal Source

and A/D Board

Already Isolated.

Already isolated signal source

and A/D board connected to

a differential input.

GND

These grounds are

electrically isolated.

10 K

10K is a recommended value. You may short LL GND to CH Low

instead, but this will reduce your system’s noise immunity.

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MC PCI-DAS1602 Manual do Utilizador Página 19