Measurement-computing PCM-DAS16x/16 Instrukcja Użytkownika Pobierz pdf (Strona 27)

The following sections depicts recommended input wiring schemes for each of the 8

possible input configuration/grounding combinations.

6.2.1 Common Ground / Single-Ended Inputs

Single-ended is the recommended configuration for common ground connections.

However, if some of your inputs are common ground and some are not, we recom-

mend you use the differential mode. There is no performance penalty (other than loss

of channels) for using a differential input to measure a common ground signal source.

However the reverse is not true. The diagram below shows a recommended connec-

tion diagram for a common ground / single-ended input system.

6.2.2 Common Ground / Differential Inputs

The use of differential inputs to monitor a signal source with a common ground is a

acceptable configuration though it requires more wiring and offers fewer channels

than selecting a single-ended configuration. The diagram below shows the recom-

mended connections in this configuration.

Input

Amp

To A /D

A/D Board

I/O

Connector

LL GND

CH IN

Signal

Source w ith

Common Gnd

Optional wire

since signal source

and A/D board share

common ground

Signal source and A/D board

sharing common ground connected

to single-ended input.

Input

Amp

To A /D

A/D Board

I/O

Connector

LL GND

CH High

CH Low

Signal

Source with

Common Gnd

Optional wire

since signal source

and A/D board share

common ground

Required connection

of LL GND to CH Low

Signal source and A/D board

sharing common ground connected

to differential input.

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 39 40

Komentarze do niniejszej Instrukcji

Brak uwag

Measurement-computing PCM-DAS16x/16 Instrukcja Użytkownika Strona 27

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Sprzęt komputerowy Measurement-computing PCM-DAS16x/16