Campbell 21X Manual do Operador descarregar pdf (Página 9)

21

X

MICROLOGGER

OVERVIEW

The 21X Mi ologger

combines

precision

measurement with

processing

and

control capability

in a single

battery oper

ted system.

Campbell

SQientific,

lnc.

provides

three documents to aid

in

understanding

and operating

the 21X:

1.

This Overuiew

2.

1

The

21X

Operator's

Manual

3.

I

fne 21X Prompt

Sheet

i

This Overui$w

introduces

the

concepts

required to take advantage

of the 21X's capabilities.

Hands-on

programmin!

examples

start in Section OV4.

Working with a

21X will help the

learning

process,

so don't

just

read

tha

examples,

turn

on

the 21X and do them.

lf

you

want

to staft this

minute,

go

ahead

and try

the

exampldp,

then come back and

read the rest of the Overview.

The sectiong

of

the

Operator's

Manualwhich

should

be read to

complete

a basic understanding

of

the

appropriate

are the

Programming Sections 1-3,

the

portions

of

the data

retrieval

Sections

4

and

5

the method(s)

you

are using

(see

OVS), and

Section 14

which

covers

installation and

Section 6

details of serialcommunications.

Sections

7

and I contain

programming

examples.

Sections

9-

have detailed descriptions

of

the

programming

instructions, and Section

13

goes

into

detailon

2 1

X

measurement

procedures.

The

Sheet is an abbreviated

description

of the

programming

instructions. Once

familiar with the

21X,

it

is

to

program

it using only the Prompt Sheet

as

a

reference,

consulting the manual

if

further

is needed.

Read the SQlected

Operating

Details and Cautionary Notes

at

the

front

of

the

Manual before using

the

21X.

OV1.

PHYSIDAL DESCRIPTION

The 21X Mifrologger

is shown

in Figure OV1-1.

The 21X is

powered

with 8 alkaline

"D" cells

and

has

onlf

the

power

switch on

the

base.

The 21XL ig

powered

with

rechargeable

lead

acid

cells add,

in

addition

to the

power

switch,

has

a

chargpr

input

plug

and

an

LED which

lights when

fhe

charging circuit

is

active.

The

21XL shoulfl

always

be connected to a

solar

panel

or

AC charger.

The lead acid batteries

provide

bacfiup

in event of

a

power

failure but

are

permanpntly

damaged

if their voltage

drops

below 11.74

volts. Campbell

Scientific does

not

warrant bafleries.

The battery base

is

the

only

difference between

the

21X

and

the 21XL.

The

16

chafacter

keyboard

is used to enter

programs,

qommands

and data;these

can be

viewed on

tfie 8 digit display

(LCD).

FIGURE OV1-1.

21X Micrologger

ov-1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 190 191

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