Campbell Scientific CR10 CR10 Measurement and Control - Page 34

CRlO OVERVIEW

OV7.

SPECIFICATIONS

The

followlng ekiclrlcrit

spclflcatlons

are

vald

for

an

embbnt

tanrpraturc

nngo

of

-2f

to

*#C

unb*q

PROGRAM

EXECUNAN

RATE

systom

rashs

lnitlated ln sync

wllh rsal-tme

up to

il

Hz.

One

measurom€ntwith

data

ramter

ls possible

at

this

rate

wltt|out

Intenupdon.

A

slnglo

lnput may b€

m€asured

ov€rshorl

Intervals

al

rates

uo lo

750

Ftr

using Burst

lreasur€ment.

ANALOG'NPUTS

NUMBER OF

CFIANNELS:

6 dlfterendal or up

lo

12

singleefldod.

Eadr

differcndal

d|annelcan

be

conffgw€d

as

turo

slngleended

cfnnnels.

CFIANNEL

EXPANSIOiI:

Tho

lt od€l 4M416

Rolay

l/hidplexer

allows an

addldmal 64 dnglo-sndod

channels

b

muldpl€x InD four

CR10 ingle-ond€d

dnnnels

Up

b

thr€o Atvt416's

can

b€ connected

b

ono

CRlo.

ACCURACY OF VOLTAGE

I/EASUREMENTS AND

ANALOG

OTJTPUT

VOLTAGES:

0.2% ot FSR, 0.1% of FSR (o

b

4ooC)

RANGE ANO

RESOLUTION:

Ranges

are

software

se

lectable

br

any

channol.

Re$lutlon

tor a

slngle

endsd

mesuremont

ls

lwlco

tlt€ valt

e

st|orvn.

Full

ScaL

Rangp

R.eolrilon

i

2500

millhrolts

333

mkto\rolts

t

250

milllYolts

(1.3

mktovolts

t.

25

mlllh/olts

3.3}

mkrovolts

+. 7.5

millh/olB

l.OO

mlcro/olts

*

2.5

mlllhrolB

0.33 mlcrorrolls

INPUT

SAMPT-E

RATES:

The

fastArD

oorwerslon

uses

a

025

ms signal

lntogratbn

dtn€ and th€

glow

corwerslon uses a

2.72

ms slgnal lntogration.

Two Int€grations, s€parat€d In tirn€

by

112

ol

an

AC lln€

ryd6,

aro used

wlth

tho

60

Hz or

50

FE

nols€

rsJscnon

opSon.

Dlfierendal

rpasuromonts

Indude a second sarnpllng

wlth ravsrs€d

Input

polarlty

b

r€ducs thonnal otts€t

and

commorl

rflode

eno.3.

lnput

samde

rates

ate

tr|€ dmo

requlrgd

b

mgssure

end

convort the

result to

engln€sring unlts.

Fast

singb.end€d

\|oltags:

2.6 ms

Fastdifierendal

voltaoe:

4.2

ms

Slow

single€nd€d

vdtao€:

5.1

ms

Slofv difierendal

\dEoo:

9.2

ms

Dlfterenttd

wlth 60

Fk

rel€cdon:

25.9 ms

Fast

diff€{anfal

thennocouple:

8.6 ms

INruT

NOISE VOLTAGE:

Fast

dltf€roo$al

--

0.82

mlcrorolts

RMS

Sfc|lil

ditf€rendel

-

O.25

mlcrovolts

RMS

Dltlerendal

wlfl

60 Hz

rol€cdon

-

0.18

mkrorolts

RMS

COMlrrOi,l

iIODE

RAl.lGE:

*

2.5

nolB.

DC

COM[rOftl

I,IODE

REJECTIO]I:

>'l4o

dB.

NORITTAL

llooE

REJECTIOiI: 70 dB

(60

Hz

witr

slow

tliflerendd

measurem€nt).

INPUTCURREMf:

3 nan@rnps

marlmum-

INPUT

RESISTAiICE:

An

Oh0[tms.

EXCTTANONOWPUTS

OESCRIPT|oN:

Tho

CR1

0 has

3

swnch€'d

exdtatb;]s,

achro

mly

durlng

m€qs{rrs|n€n! wlth

only

one

oritsut

sctiw

at any

drn€. Tho

otf

stat€

is

high

lmp€dance.

RAl.lGE:

t

2.5

vohs.

RESOLUTIOa,I: 0.67 mlllh,olB.

ACCURACY:

Sarne as

l,dtao€

hput.

OUTPUT

CURRENT:

20 rnA

@-t

2.5

V; 35 mA

@

-t

2.0 V; 50 mA

@

.t

1.5

V.

FREQUErcY

SWEEP

FUllCTkCtl:

A

syept

trequenq,

sqrraro

war€

outsrJt

hlwo€n

0 and

2.5

yolts

is

prorided

tor

viiradqg

wlre

transducers.

Timlno and trequoncy reng€ are

sp€dfiod

by

f|e

lnstrucdon-

N

MilSUREMENIS

AC,C;|,TRACY:

0.015% ot tull

scab

bddgp

ouFul

llmited

by

he

matchlng

Mdgo

reslsbrs.

Tho

exdarbn

\,oltaoo

sho.Jld

bo pmoremrn€d 90

fta

brldg€

orrFd

rnatch$

flo ftll

scale

lnputvoltaoo

rang€.

MEASIJREM€NT TYPES:

swlro

and

ztdro

tull

bridg€,4{|l€,}wll€.

snd 2-wks

hofi

Mdge.

Bridgo rn€asurornenB ar9 |adoanggic and duel

polarlty

b

ellmlnate

lh€nnal

emf.

AC

toslstane

moas{JrernenB usg

I

dual

polarly

0.75

ms

exdEado.r

pu|$

lor

lonlc

depobdzadm,

wlth

tho

slgnsl

Intogradon occurrlng ov€r tho lasl

0.25

m3.

P

E

R,O D

AV

ERAG

I

NG

IylE;AS

U R

EM

ENTS

DEFlNlTlOtl:

Tho

dme pedod tor a

spedfi€d numbor

of

cycles of an lnpul trequency ls tneasutad,

tlpn

dtvld€d by tho numb€r

of cydon

b

obaln

t|o

a/6ra€'6 pgriod of a Cngle

cyde.

INruTS:

Any sln€le-orxl€d

anabg chanrpl: slgnd

dtuldirE or AC coupllng

b

no.rnslly rsqulrod.

INruT

F

RECIJE I"ICY

MI.IGE:

Rengo

PxI

to

P..k

Vont

lrxlmum

Codo

R.qdt.d

@

Lr. FDq.'

Ftrquomy

8l+lz

20

kllz

50

l+lz

2OO

kHz

'AC

vohaOe;

must b€ c€nte(€d

arornd

CR10

ground

REFEREI'ICE

A@URACY:

(-25o

b

ooc) + 80 pprn

(oo

b

+5ooo)

t

30 pprn

RESOLUTON:

-t

100

ianeeconds

dlvlded

by

fie

numb€r of

qdes

rnoasur€d.

Re3oludon

ls

reduced by

slgrnl

rdso

and

h

slgnab wllh

a

sk]l'v

u^ansitjon

thmugh tho zo|o

volla€p hroshold.

TIME

REOUIRED FOR

i,EASUREil,IENT:

SIONAI

p€rlod tirnos th€ numb€r of

qdos

rn€asur€d plus

1.5

cfctas.

PULSECOUNTERS

NUITTBER

OF PULSE COUNTER

CHANNELS:

2

oisht

Ut or

1

dxt€on

UC

aoftwato

solo@bl€.

liitAxlMt

{l c,otJNT BATE:

2OOO

Fb. elghr Ur

oqrntef:

25o

kHz, slxtoen

Hl

counter. Pulse countor

channels

are

scannod at

I

Ftz.

iTODES:

Swltcfr closure. hlsh tr€quency

pulss, and

krw level

AC.

SWfTCHCLOGURE

KIODE

Mlnlmum

$dich

Cloc€d

Tlm€:

5 mlllls€conds.

Minimum

$rltcfi

Opon

Tlrno:

6

mllllsalonds.

.

Ma.xlmum Bounoo

Tlrne:

1

mllllsecond

open

wlflout

belng

ount€d.

HiGH FREAIJE}ICY

PULSE

TJIOOE

Minimum

Rrleo vl,ldlh:

0.002 mllllsecon<ls.

lvlaximum Input Fr€quencry:

250

kFh.

Voltage

Thr€sholds:

Co.Jnt upon

transltlcn

fto.n

b€low

1.5

V

b

ebove 3.5 V.

lvlarlmum

lnput

Voltaop:

.i

2(,

V.

LOVr,

IEVEL AC

lvlOOE

Cfypbal

of

nnonedc

pulse flow

ransduofis or

otlEf

br

volta€p,

cne

wavo

outFrts).

Minknum

AC

lnPr|rvdtagor

6

mV

R[tS.

1

2mV

2

3mV

3

l2mv

4

2OOOmV

ov-20

lnput

Flystsrosls:

11

mV.

lh.xlmum AC lnpul

Fr€quoncy Ran€p:

AC Inp{rt

(RfF)

20

mV

50 mV

l50mVb20V

(Consult taciory

It

hlghor

DIGITAL YO PORTS

8

pons,

software s€l€ctablo ag

qj@uls.

OUTPUT VOLTAGES (no l@d):

lotf,

<

0.1

V.

OUTPUT

RESISTAI'.IG:

5OO

O.

lNruT

STATE:

hlgh 3.0 V

b

5.5

INPUT

RESISTArcE: too

kO.

SDI.I2

'NTERFACESN

Thl3 cornmunlcadon

p.obcol,

esso(-based

hydrobglc

and

availablo

as

a

sofiraro

op$on

In

SENSOR COTJNECTIOI.IS:

asyncnftxrous

ground.

Up

b

lon SDI-12

n€cted to a

CR10.

TRANSIENT

All lnpul

and

ouFut

connecdons

b

are potocted

using RC flltof3

of

to

a h€a/y

coppor bar betw€en

cas€.

Ttr€

CR1oWP

Wldng Panol

spark

gEp

and

transzorb

CPU

AND

INTERFACE

PRCCESSOR:

Hltachl

69t3.

MEITTORY:

32K

ROlr,64K

RAM.

DISPLAY:

I

dlglt

LCD

(0.5'dlolts)

PERIPHEML

INTERFACE:

9

keyboard

dlspl

ay.

sbrag€

card

storagle

rnodul€, end

stop

bit,

elght

data

blts

(m

CLOCKASURACY:

il

mlnulo

SYSTEM

POWER

VOLTAGE:

9.6

b

15

t,olts.

TYP|CAL CURRENT

DRAIN:

0.7

13 rnA

durlng pro€ossing,

and

analog measurern€nt.

BATTERIES: Any

12 volt benery

a prirnary

power

SdJtDe.

odons

are aivailaHo

ftoatl

PHYSICAL SPEdFTCA

SIZE:7.8.

x

3.5'

x 1.5' -

Ir,lodule;

I

x

3.5i

x

2.9

-

wlul

Panol.

Addldonal

tEn

WEIGHT:

2lbs.

WARRANW

Thr€€ y€€rs agalnst dotecut

In

strip.

V

R}r;.

Rrne.

b

b

D

rates

sobctaHe

at

3m.

1200.

end

ASCII

communlcadm

5.0

va

J8

pofior,

be

rean

Campbell Scientific CR10 CR10 Measurement and Control - Page 34

IOV7.

Page 34 highlights