Campbell CR500 Spécifications télécharger pdf (Page 12)

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2.

Hardware

2.1

CR500

Analog Inputs

and

Excitation

Earth Ground

Each

CR500 should

be tied to a

good

earth

ground.

Pulse Counters,

Digitallnputs

and Control

Output

(See

Sec.2.3)

Analog Inputs

and Excitation

(See

Sec.2.2)

Cable Tie

Downs

2.2

Campbell

Mounting Flanges

(See

Mounting Options,

Analog Inputs: Terminals

SE 1, 2

,

3, and

4

(labeled

in light bl

are single-ended input

channels. ln a single-ended

measu

the voltage

on an analog

input is measured

with

respect to

ground (AG).

When wired

and

programmed

for

a

differential

measurement,

2

are DIFF 1H and 1L. lnputs

SE 3 and

4 are

DIFF 2H

and

2L

in white).

ln a differential measurement,

the

voltage on the H

input is measured with

respect to the

voltage on the L

(low)

i

rH

Ll

DIFF

L

1J

sE12

*;..,,,.

Analog

ground:

*i.#

excitationreturn.

tri........-

Sec.6.2)

Reference for single-ended

measurements

Circuit

polarity

(See

2.s)

9 Pin

(See

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 47 48

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