3-conductivity calibration training

7/26/2019 3-Conductivity Calibration Training

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Leading Pure WaterAnalytics

THORNTON

Mettler-Toledo

Conductivity Calibration TrainingVictor M. Braga

Mettler-Toledo Thornton, Inc.

Bedford, MA 0170 !"A

###.thorntoninc.co$
http://www.thorntoninc.com/http://www.thorntoninc.com/


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THORNTON To&ic'

In'tru$ent Traceability

"en'or Traceability

In'tru$ent Calibration

"en'or Calibration

Calibration o&tion'

(ield Calibration

"&eciali)ed Calibration'

(ield Calibration *e$o


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THORNTON

A co$&ari'on bet#een an ite$ of $ea'uring e+ui&$ent or te't

e+ui&$ent, #ith a standardor a 'i$ilar ite$ of higher accuracy, for the

&ur&o'e of detection, correlation, and the docu$entation of, the

accuracy of the in'tru$ent or ite$ of e+ui&$ent being co$&ared or

te'ted.

*efinition of Calibration


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THORNTON

ational "tandard'

ASTMA$erican "ociety for

Te'ting and Material'

NISTational In'titute of "tandard'

and Technology


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THORNTON hat I' A"TM

rgani)ed in 1232, it i' one of the large't voluntary 'tandard'develo&$ent organi)ation' in the #orld

ot-for-&rofit organi)ation that &rovide' a foru$ for the develo&$ent

and &ublication of voluntary con'en'u' 'tandard'

It &ubli'he' $ore than 10,000 'tandard' each year in the 7 volu$e'

of theAnnual Book of ASTM Standards

American Society for Testing and

Materials


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THORNTON hat I' I"T

The ational In'titute of "tandard' and Technology i' an agency of the !.".

*e&art$ent of Co$$erce5' Technology Ad$ini'tration

6'tabli'hed in 1301 to 'trengthen the !.". econo$y and i$&rove the +uality

of life by #oring #ith indu'try to develo& and a&&ly technology,

$ea'ure$ent', and 'tandard'.

&erate' &ri$arily in t#o location' 8aither'burg, M* and Boulder, C

National Institute of Standards and Technology


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THORNTON Calibration Traceability

Meter' and calibrator' 9decade bo:e';

- Traceable to ational In'titute' of "tandard' 9I"T;

"en'or'

- Cell Con'tant < Traceable to A$erican "ociety for Te'ting and Material' 9A"TM;

and !ltra&ure ater at 1/=, %/= and 0 =C

-Te$&erature - Traceable to ational In'titute' of "tandard' 9I"T;


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THORNTON In'tru$ent Calibration


"en'or Traceability


"en'or Calibration

Calibration o&tion'

(ield Calibration




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THORNTON

>ange Manually "elected

Auto >ange

In'tru$ent calibration a''ure' calibration of all

$ea'uring range'

hy Calibrate "e&arately?


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THORNTON In'tru$ent Calibration

Calibrated@verified #ith decade bo:e'

Calibrated@verified #ith $anufacturer5'

calibrator'

Calibration@verification $ay be &erfor$ed at the

$eter or at the end of the cable


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THORNTON Traceability

Process Instrument

Manufacturers

Calibrators (Decade Bo!

Multi"Meters

Cal #abs

NIST


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THORNTON Conductivity "en'or Calibration


"en'or Traceability


"en'or Calibration

Calibration o&tion'

(ield Calibration




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THORNTON Cell Con'tant'

$cm

%&$cm $cm

0.1 con'tant

Cell Constant ' Multilier


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THORNTON Cell Con'tant Traceability

Production Cell

ConstantStandards #ab

Cell Constant

ASTM D$$)*Primary Standard

and Pure +ater

at $*, )*, -%.C


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THORNTON

"olution Conductivity %/ C

A 111,% "@c$ 92.32 -c$;

B 1%,2/4 "@c$ 977.72 -c$;

C 1,02.2 "@c$ 9703.2% -c$;

* 14.3 "@c$ 94,20/.34 -c$;

Dlu' conductivity of #ater u'ed

Standard D$$)*/

"tandard Te't Method' for 6lectrical Conductivity and >e'i'tivity of

ater

(our Conductivity "olution'E A, B, C, *


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THORNTON

0ltraure +ater as a 1undamentalStandard

2ffects of Tem& on 0ltraure +ater 3esisti4ity

Temerature

3esisti4ity

%

)%

-%

5%

6%

$%%

% $% )% 7% -% *% 5% 8% 6% 9% $%%

(Deg C!

$6&$6 M

"cm

%&%** :S;cm7$&68 M

"cm

%&%7$ :S;cm

6&6* M

"cm

%&$$7 :S;cm

(unda$ental "tandard


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THORNTON

!ltra&ure ater "en'or Verification@

Calibration@Certification "y'te$


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THORNTON Traceability

Product

Manufacture


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THORNTON


"en'or Traceability


"en'or Calibration

Calibration o&tion'

(ield Calibration



Calibration &tion'


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THORNTON Cell Calibration Method'

Method' u'ed to verify@calibrate cell'

- Verify@calibrate in 'olution #ith 'tated conductivity

"olution $ay be &urcha'ed

"olution $ay be &re&ared to '&ecific conductivity

- Verify@calibrate v'. another calibrated cell

-

>eturn cell to factory for calibration


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THORNTON

Nearly 20%Nearly 20%difference!!!difference!!!

I bought a F'tandardG conductivity 'olution... but #henever I u'e it to verify

the cell con'tant, they never agree. I al#ay' have to re-calibrate.

=Standard

Solution>

Calibrating #ith F"tandardG "olution'


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THORNTON Calibrating #ith F"tandardG "olution'

>ea'on' for the difference bet#een the F"tandardG and #hat the $eter

di'&lay'

- The 'tated conductivity of the F"tandardG i' incorrect

Hou get #hat you &ay for

">M132 < 6ach ti$e the bottle i' o&ened, a &ortion of the 'olution #ill

eva&orate, #hich #ill change the conductivity. "olution 'hould be o&ened forthe $ini$u$ ti$e re+uired to di'&en'e 'olution -- I"T

- Conta$ination of the 'olution by dirty e+ui&$ent

- Conductivity of the 'olution #a' too lo# and #a' conta$inated by C%


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>ea'on' for the difference bet#een the F"tandardG

and #hat the $eter di'&lay'

- The $eter i' not calibrated

Calibrated #rong range circuit'

1. Calibrate@verify all range circuit'

%. Calibrate@verify the a&&ro&riate range circuit


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>ea'on' for the difference bet#een the F"tandardG and #hat the $eter

di'&lay'

- ot accounting for the te$&erature de&endence of the 'olution

Hou are not at the 'tandard te$&erature

Hou are not co$&en'ating #hen you 'hould be

-

ut of the dyna$ic range of the $eter and 'en'or


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THORNTON


"en'or Traceability


"en'or Calibration

Calibration o&tion'

(ield Calibration



(ield Calibration


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THORNTON Verify@Calibrate

Portable Cond&;3es

Calibration ?it

Verify@Calibrate V'. Another Calibrated Cell

The #ater 'y'te$ $u't have a 'a$&le

&ort

oint' $u't be air tight

Mu't have ade+uate flo# through the

cha$ber

Be a#are of air ingre''

- C% #ill diffu'e through $o't

&oly$er'

- Doly&ro&ylene #ill &ic u& &&b &er

$eter of length- ylon #ill &ic u& 0.0 &&b &er $eter


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THORNTON Calibration "e+uence

Calibrate %00C> Te$&erature Circuit

Calibrate %00C> >e'i'tance Circuit

Calibrate !!T Te$&erature "en'or

Calibrate !!T cell Con'tant

Portable Cond&;3es

Calibration ?it


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THORNTON *ata Collection'

>ecord A" (!* "en'or Calibration (actor'

- "en'or >6" Multi&lier

- "en'or >6" Adder 9al#ay' J 0;

- "en'or T6MD Multi&lier

- "en'or T6MD Adder

Verify %00C> Calibration

>ecord A" (!* >eading'

Calibrate %00C> 9if re+uired;

Calibrate "en'or5' Te$&erature 9if re+uired;

Calibrate "en'or5' Cell Con'tant 9if re+uired;


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THORNTON Verify@Calibrate

ASTDRe 1.000M-cMSTDT! "#.$%&&''TRe 1.000M-cMD''TT! "#.$%&

"tandard and !!T 'en'or'

are e:&o'ed to the 'a$e

condition'

Verify@calibrate V'. Another Calibrated Cell


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THORNTON Calibration "te&'

1. Calibrate the Metera. Calibrate all re'i'tivity circuit'b. Calibrate all te$&erature circuit'

%. Calibrate the "en'or5' Te$&erature

. Calibrate the "en'or5' Cell Con'tanta. Calibrate !nco$&en'ated@Co$&en'ate


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THORNTON

Te$&erature

Co$&en'ation

Algorith$

Co$&en'ated

>eading'

Co$&en'ation Algorith$

!nco$&en'ated

>e'i'tance


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THORNTON !nco$&en'ated Mode

Calibrating in the !nco$&en'ated Mode

"tandard 'en'or $u't be at the 'a$e te$&erature a' !!T

- Mini$i)e tubing length

-Increa'e flo# rate

- A''ure 'table te$&erature environ$ent

C f


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THORNTON >eturn Cell to Manufacturer

>eturn Cell to Manufacturer for Calibration

- Traceable A"TM calibration

Multi-&oint verification available

- Certificate of calibration &rovided

ThorntonIn

c,

@erebycert

ifies

thatthe

folloAing

Instrument;

sensor

(erformsA

ithin

s(ecificati

ons

" i li d C lib i


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THORNTON


"en'or Traceability


"en'or Calibration

Calibration o&tion'

(ield Calibration



"&eciali)ed Calibration

"t d d " C lib ti


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THORNTON "tandard "en'or Calibration

"tandard calibration &rovide' vitalinfor$ation about the 'en'or5'

&erfor$ance

THORNTON 6l t d T C lib ti


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THORNTON 6levated Te$&. Calibration

Calibrating at or near o&erating te$&erature &rovide'E

- 8reater te$&erature accuracy

- More accurate co$&en'ated reading'

THORNTON A"TM V ifi d C lib ti


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THORNTON A"TM Verified Calibration

"en'or i' calibrated at 0.0// "@c$ and verified in A"TM

"olution * 917 "@c$;

1,000 1 S/cm0.01

Solution D

Solution C25C

UPW

USP waters

100 10S/cm

ne Doint A"TM Verified Calibration

THORNTON A"TM V ifi d C lib ti


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THORNTON A"TM Verified Calibration

Drovide' detailed re&ort#ith di'tribution data

ne Doint A"TM Verified Calibration

THORNTON " t C lib ti


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THORNTON "y'te$ Calibration

Calibrate' 'en'or, $eter and &atch cord a' a 'ingle ite$E

- >educe' individual inaccuracie'

- &ti$i)e' 'y'te$ accuracy

THORNTON


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THORNTON

Than HouVictor M. Braga

Mettler-Toledo Thornton, Inc.

3-conductivity calibration training

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