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28 

Phone:(910)

 

392

2490

 

Fax:

 

(910)

 

392

2123

 

416

 

Landmark

 

Drive

 

Wilmington,

 

NC

 

28412

 

www.easterninstruments.com

 

 

Phone:(910)

 

392

2490

 

Fax:

 

(910)

 

392

2123

 

416

 

Landmark

 

Drive

 

Wilmington,

 

NC

 

28412

 

www.easterninstruments.com

 

Site

 

Calibration

 

 

When

 

the

 

CentriFlow®

 

Meter

 

is

 

sent

 

from

 

the

 

Factory

 

it

 

is

 

set

 

with

 

Default

 

values

 

for

 

the

 

Static

 

Calibration

 

and

 

the

 

Calibration

 

Voltage,

 

which

 

were

 

chosen

 

for

 

the

 

particular

 

material

 

being

 

measured

 

with

 

the

 

meter.

   

As

 

described

 

in

 

the

 

previous

 

Section,

 

the

 

Static

 

Calibration

 

is

 

an

 

adjustment

 

that

 

ranges

 

the

 

Transducer,

 

the

 

Measurement

 

Element

 

of

 

the

 

meter.

  

This

 

Setting

 

will

 

not

 

change

 

unless

 

the

 

Electronic

 

Full

 

Scale

 

is

 

changed.

 

 

The

 

Calibration

 

Voltage,

 

however,

 

is

 

the

 

adjustment

 

that

 

is

 

made

 

to

 

Calibrate

 

or

 

Site

 

Calibrate

 

the

 

Electronics

 

to

 

a

 

particular

 

application.

  

Although

 

the

 

Factory

 

setting

 

may

 

be

 

quite

 

accurate,

 

it

 

is

 

likely

 

due

 

to

 

differences

 

in

 

installation,

 

feed

 

systems,

 

and

 

material

 

being

 

measured,

 

that

 

an

 

adjustment

 

be

 

made

 

after

 

the

 

CentriFlow®

 

Meter

 

is

 

installed.

  

This

 

procedure

 

is

 

very

 

simple

 

and

 

will

 

require

 

a

 

means

 

of

 

capturing

 

material

 

that

 

is

 

run

 

through

 

the

 

meter

 

and

 

weighing

 

that

 

material.

  

Depending

 

on

 

the

 

Configuration

 

of

 

the

 

CentriFlow®

 

Meter,

 

either

 

Type

 

I

 

or

 

Type

 

II,

 

the

 

method

 

of

 

capturing

 

the

 

material

 

to

 

be

 

weighed

 

will

 

be

 

different.

  

For

 

a

 

Type

 

I

 

Configura

tion

 

the

 

material

 

can

 

be

 

captured

 

after

 

it

 

leaves

 

the

 

Pan

 

Section

 

of

 

the

 

meter,

 

if

 

the

              

installation

 

allows,

 

or

 

at

 

some

 

other

 

point

 

in

 

the

 

flow

 

path

 

after

 

it

 

has

 

been

 

measured

 

by

 

the

 

CentriFlow®

 

Meter.

  

The

 

closer

 

the

 

capture

 

point

 

is

 

to

 

the

 

end

 

of

 

the

 

Pan

 

Section

 

of

 

the

 

meter

 

the

 

less

 

likely

 

that

 

there

 

will

 

be

 

loss

 

in

 

the

 

measurement

 

sample

 

and

 

therefore

 

less

 

likely

 

that

 

there

 

will

 

be

 

an

 

error

 

in

 

the

 

Calibration

 

of

 

the

 

Electronics.

  

It

  

is

  

important

 

not

 

to

 

come

 

in

 

con

tact

 

with

 

the

 

Pan

 

Section

 

when

 

capturing

 

the

 

measurement

   

sample

 

so

 

that

 

the

 

Electronics

 

does

 

not

 

give

 

incorrect

 

results

 

from

 

measuring

 

the

 

contact.

   

Always

 

remember

 

to

 

fully

 

secure

 

the

 

door

 

back

 

to

 

the

 

enclosure

 

before

 

resuming

 

normal

 

flow

 

through

 

the

 

meter.

 

 

When

 

performing

 

the

 

Site

 

Calibration,

 

it

 

is

 

recommended

 

that

 

a

 

minimum

 

of

 

five

 

samples

 

be

 

taken

 

before

 

making

 

any

 

Adjustments

 

to

 

the

 

Electronics.

   

Also,

 

it

 

is

 

recommended

 

that

 

the

 

sample

 

run

 

be

 

a

 

minimum

 

of

 

10

 

seconds

 

long.

  

This

 

will

 

allow

 

a

 

reasonable

 

amount

 

of

 

material

 

to

 

be

 

run

 

through

 

the

 

CentriFlow®

 

Meter

 

ensuring

 

an

 

accurate

 

adjustment

 

to

 

the

 

Calibration.

  

The

 

procedure

 

is

 

explained

 

as

 

follows:

 

 

Step

 

1:

 

Make

 

sure

 

that

 

the

 

TOP.RUN

 

page

 

is

 

accessed

 

to

 

begin

 

the

 

procedure.

  

Press

 

the

 

 

Reset

 

Button

 

on

 

the

 

Lower

 

Left

 

to

 

reset

 

your

 

count

 

to

 

zero

 

before

 

running

 

product

 

 

through

 

the

 

meter.

   

 

Step

 

2:

 

Run

 

product

 

through

 

the

 

meter

 

for

 

a

 

designated

 

period

 

of

 

time,

 

collecting

 

the

    

 

material

 

in

 

some

 

manner

 

after

 

it

 

has

 

passed

 

through

 

the

 

meter.

  

 

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