Lovibond PM 620 Instruction manual

Photometer-System

P 620

GB Instruction manual

Important steps before using the photometer

Please carry out the following steps as described in the

Instruction manual. Become familiar with your new photometer before starting with the first tests:

• Unpacking and inspection of delivery contents, see page 162.

• Install the batteries, see page 112.

Perform the following settings in the Mode-Menu;

Instruction manual from page 123 and following:

• MODE 10: select language

• MODE 12: set date and time

• MODE 34: perform “Delete data“

• MODE 69: perform “User m. init” to initialise the user polynomial system

If required set other functions.

DE

Wichtige Information

Um die Qualität unserer Umwelt zu erhalten, beschützen und zu verbessern

Entsorgung von elektronischen Geräten in der Europäischen Union

Aufgrund der Europäischen Verordnung 2012/19/EU darf Ihr elektronisches Gerät nicht mit dem normalen Hausmüll entsorgt werden!

Tintometer GmbH entsorgt ihr elektrisches Gerät auf eine professionelle und für die Umwelt verantwortungsvolle Weise. Dieser Service ist, die Transportkosten nicht inbegriffen , kostenlos. Dieser Service gilt ausschließlich für elektrische Geräte die nach dem 13.08.2005 erworben wurden. Senden Sie Ihre zu entsorgenden

Tintometer Geräte frei Haus an Ihren Lieferanten.

GB

Important Information

To Preserve, Protect and Improve the Quality of the Environment

Disposal of Electrical Equipment in the European Union

Because of the European Directive 2012/19/EU your electrical instrument must not be disposed of with normal household waste!

Tintometer GmbH will dispose of your electrical instrument in a professional and environmentally responsible manner. This service, excluding the cost of transportation is free of charge. This service only applies to electrical instruments purchased after 13th August 2005. Send your electrical Tintometer instruments for disposal freight prepaid to your supplier.

FR

Notice importante

Conserver, protéger et optimiser la qualité de l’environnement

Élimination du matériel électrique dans l’Union Européenne

Conformément à la directive européenne nº 2012/19/UE, vous ne devez plus jeter vos instruments électriques dans les ordures ménagères ordinaires !

La société Tintometer GmbH se charge d’éliminer vos instruments électriques de façon professionnelle et dans le respect de l’environnement. Ce service, qui ne comprend pas les frais de transport , est gratuit. Ce service n’est valable que pour des instruments électriques achetés après le 13 août 2005. Nous vous prions d’envoyer vos instruments électriques Tintometer usés à vos frais à votre fournisseur.

NL

Belangrijke informatie

Om de kwaliteit van ons leefmilieu te behouden, te verbeteren en te beschermen is voor landen binnen de Europese Unie de Europese richtlijn

2012/19/EU voor het verwijderen van elektronische apparatuur opgesteld.

Volgens deze richtlijn mag elektronische apparatuur niet met het huishoudelijk afval worden afgevoerd.

Tintometer GmbH verwijdert uw elektronisch apparaat op een professionele en milieubewuste wijze. Deze service is, exclusief de verzendkosten , gratis en alleen geldig voor elektrische apparatuur die na 13 augustus 2005 is gekocht. Stuur uw te verwijderen Tintometer apparatuur franco aan uw leverancier.

ES

Información Importante

Para preservar, proteger y mejorar la calidad del medio ambiente

Eliminación de equipos eléctricos en la Unión Europea

Con motivo de la Directiva Europea 2012/19/UE, ¡ningún instrumento eléctrico deberá eliminarse junto con los residuos domésticos diarios!

Tintometer GmbH se encargará de dichos instrumentos eléctricos de una manera profesional y sin dañar el medio ambiente. Este servicio, el cual escluye los gastos de transporte , es gratis y se aplicará únicamente a aquellos instrumentos eléctricos adquiridos después del 13 de agosto de 2005. Se ruega enviar aquellos instrumentos eléctricos inservibles de Tintometer a carga pagada a su distribuidor.

IT

Informazioni importanti

Conservare, proteggere e migliorare la qualità dell’ambiente

Smaltimento di apparecchiature elettriche nell’Unione Europea

In base alla Direttiva europea 2012/19/UE, gli apparecchi elettrici non devono essere smaltiti insieme ai normali rifiuti domestici!

Tintometer GmbH provvederà a smaltire i vostri apparecchi elettrici in maniera professionale e responsabile verso l’ambiente. Questo servizio, escluso il trasporto ,

è completamente gratuito. Il servizio si applica agli apparecchi elettrici acquistati successivamente al 13 agosto 2005. Siete pregati di inviare gli apparecchi elettrici

Tintometer divenuti inutilizzabili a trasporto pagato al vostro rivenditore.

PT

Informação Importante

Para Preservar, Proteger e Melhorar a Qualidade do Ambiente

Remoção de Equipamento Eléctrico na União Europeia

Devido à Directiva Europeia 2012/19/UE, o seu equipamento eléctrico naõ deve ser removido com o lixo doméstico habitual!

A Tintometer GmbH tratará da remoção do seu equipamento eléctrico de forma profissional e responsável em termos ambientais. Este serviço, não incluindo os custos de transporte , é gratuito. Este serviço só é aplicável no caso de equipamentos eléctricos comprados depois de 13 de Agosto de 2005. Por favor, envie os seus equipamentos eléctricos Tintometer que devem ser removidos ao seu fornecedor (transporte pago).

PL

Istotna informacja

Dla zachowania, ochrony oraz poprawy naszego środowiska

Usuwanie urządzeń elektronicznych w Unii Europejskiej

Na podstawie Dyrektywy Parlamentu Europejskiego 2012/19/UE nie jest dozwolone usuwanie zakupionych przez Państwo urządzeń elektronicznych wraz z normalnymi odpadami z gospodarstwa domowego!

Tintometer GmbH usunie urządzenia elektrycznego Państwa w sposób profesjonalny i odpowiedzialny z punktu widzenia środowiska. Serwis ten jest, za wyjątkiem kosztów transportu, bezpłatny. Serwis ten odnosi się wyłącznie do urządzeń elektrycznych zakupionych po 13.08.2005r. Przeznaczone do usunięcia urządzenia firmy Tintometer mogą Państwo przesyłać na koszt własny do swojego dostawcy.

DE

Wichtiger Entsorgungshinweis zu Batterien und Akkus

Jeder Verbraucher ist aufgrund der Batterieverordnung (Richtlinie 2006/66/

EG) gesetzlich zur Rückgabe aller ge- und verbrauchten Batterien bzw. Akkus verpflichtet. Die Entsorgung über den Hausmüll ist verboten. Da auch bei Produkten aus unserem Sortiment Batterien und Akkus im Lieferumgang enthalten sind, weisen wir Sie auf folgendes hin:

Verbrauchte Batterien und Akkus gehören nicht in den Hausmüll, sondern können unentgeltlich bei den öffentlichen Sammelstellen Ihrer Gemeinde und überall dort abgegeben werden, wo Batterien und Akkus der betreffenden Art verkauft werden. Weiterhin besteht für den Endverbraucher die Möglichkeit, Batterien und

Akkus an den Händler, bei dem sie erworben wurden, zurückzugeben (gesetzliche

Rücknahmepflicht).

GB

Important disposal instructions for batteries and accumulators

EC Guideline 2006/66/EC requires users to return all used and worn-out batteries and accumulators. They must not be disposed of in normal domestic waste. Because our products include batteries and accumulators in the delivery package our advice is as follows :

Used batteries and accumulators are not items of domestic waste. They must be disposed of in a proper manner. Your local authority may have a disposal facility; alternatively you can hand them in at any shop selling batteries and accumulators.

You can also return them to the company which supplied them to you; the company is obliged to accept them.

FR

Information importante pour l'élimination des piles et des accumulateurs

En vertu de la Directive européenne 2006/66/CE relative aux piles et accumulateurs, chaque utilisateur est tenu de restituer toutes les piles et tous les accumulateurs utilisés et épuisés. L'élimination avec les déchets ménagers est interdite. Etant donné que l'étendue de livraison des produits de notre gamme contient également des piles et des accumulateurs, nous vous signalons ce qui suit : les piles et les accumulateurs utilisés ne sont pas des ordures ménagères, ils peuvent

être remis sans frais aux points de collecte publics de votre municipalité et partout où sont vendus des piles et accumulateurs du type concerné. Par ailleurs, l'utilisateur final a la possibilité de remettre les piles et les accumulateurs au commerçant auprès duquel ils ont été achetés (obligation de reprise légale).

NL

Belangrijke mededeling omtrent afvoer van batterijen en accu’s

Ledere verbruiker is op basis van de richtlijn 2006/66/EG verplicht om alle gebruikte batterijen en accu’s in te leveren. Het is verboden deze af te voeren via het huisvuil.

Aangezien ook onze producten geleverd worden met batterijen en accu’s wijzen wij u op het volgende; Lege batterijen en accu’s horen niet in het huisvuil thuis. Men kan deze inleveren bij inzamelpunten van uw gemeente of overal daar waar deze verkocht worden. Tevens bestaat de mogelijkheid batterijen en accu’s daar in te leveren waar u ze gekocht heeft. (wettelijke terugnameplicht)

ES

IT

Indicación importante acerca de la eliminación de pilas y acumuladores

Basado en la norma relativa a pilas/ baterías (directiva 2006/66/CE), cada consumidor, está obligado por ley, a la devolución de todas las pilas/ baterías y acumuladores usados y consumidos. Está prohibida la eliminación en la basura doméstica. Ya que en productos de nuestra gama, también se incluyen en el suministro pilas y acumuladores, le sugerimos lo siguiente:

Las pilas y acumuladores usados no pertenecen a la basura doméstica, sino que pueden ser entregados en forma gratuita en cada uno de los puntos de recolección públicos de su comunidad en los cuales se vendan pilas y acumuladores del tipo respectivo. Además, para el consumidor final existe la posibilidad de devolver las pilas y baterías recargables a los distribuidores donde se hayan adquirido (obligación legal de devolución).

Indicazioni importanti sullo smaltimento di pile e accumulatori

In base alla normativa concernente le batterie (Direttiva 2006/66/CE) ogni consumatore

è tenuto per legge alla restituzione di tutte le batterie o accumulatori usati ed esauriti. È vietato lo smaltimento con i rifiuti domestici. Dato che anche alcuni prodotti del nostro assortimento sono provvisti di pile e accumulatori, vi diamo di seguito delle indicazioni:

Pile e accumulatori esauriti non vanno smaltiti insieme ai rifiuti domestici, ma depositati gratuitamente nei punti di raccolta del proprio comune o nei punti vendita di pile e accumulatori dello stesso tipo. Inoltre il consumatore finale può portare batterie e accumulatori al rivenditore presso il quale li ha acquistati (obbligo di raccolta previsto per legge).

PT

PL

Instruções importantes para a eliminação residual de pilhas e acumuladores

Os utilizadores finais são legalmente responsáveis, nos termos do Regulamento relativo a pilhas e acumuladores (Directiva 2006/66/CE), pela entrega de todas as pilhas e acumuladores usados e gastos. É proibida a sua eliminação juntamente com o lixo doméstico. Uma vez que determinados produtos da nossa gama contêm pilhas e/ou acumuladores, alertamos para os seguintes aspectos:

As pilhas e acumuladores usados não podem ser eliminados com o lixo doméstico, devendo sim ser entregues, sem encargos, junto dos pontos de recolha públicos do seu município, ou em qualquer ponto de venda de pilhas e acumuladores. O utilizador final dispõe ainda da possibilidade de entregar as pilhas e/ou acumuladores no estabelecimento comerciante onde os adquiriu (dever legal de aceitar a devolução).

Istotna wskazówka dotycząca utylizacji baterii i akumulatorów

Każdy użytkownik na mocy rozporządzenia w sprawie baterii (wytyczna 2006/66/WE) jest ustawowo zobowiązany do oddawania wszystkich rozładowanych i zużytych baterii lub akumulatorów. Utylizacja wraz z odpadkami domowymi jest zabroniona. Ponieważ także w produktach z naszego asortymentu zawarte są w zakresie dostawy baterie i akumulatory, zwracamy uwagę na poniższe zasady: zużyte baterie i akumulatory nie mogą być wyrzucane wraz z odpadkami domowymi, lecz powinny być bezpłatnie przekazywane w publicznych miejscach zbiórki wyznaczonych przez gminę lub oddawane w punktach, gdzie sprzedawane są baterie i akumulatory danego rodzaju. Poza tym użytkownik końcowy ma możliwość zwrócenia baterii i akumulatorów do przedstawiciela handlowego, u którego je nabył (ustawowy obowiązek przyjęcia).

Safety precautions

CAUTION

Reagents are formulated exclusively for chemical analysis and must not be used for any other purpose. Reagents must not get into the hands of children. Some of the reagents contain substances which are not entirely harmless environmentally. Be aware of the ingredients and take proper care when disposing of the test solution.

CAUTION

Please read this instruction manual before unpacking, setting up or using the photometer. Please read the method description completely before performing the test. Be aware of the risks of using the required reagents by reading the MSDS

(Material Safety Data Sheets). Failure could result in serious injury to the operator or damage to the instrument.

MSDS: www.lovibond.com

CAUTION

The accuracy of the instrument is only valid if the instrument is used in an environment with controlled electromagnetic disturbances according to DIN 61326.

Wireless devices, e.g. wireless phones, must not be used near the instrument.

Revision_6c 02/2021

PM620_6c 02/2021

1

Table of contents

Part 1 Methods

................................................................................................... 7

1.1 Table of Methods ........................................................................................................ 8

Acid demand to pH 4.3 ................................................................................................... 12

Alkalinity-total (Alkalinity-m, m-Value) ............................................................................. 14

Alkalinity-total HR (Alkalinity-m HR, m-Value HR) ............................................................ 16

Aluminium with tablets ................................................................................................... 18

Aluminium (powder pack) ............................................................................................... 20

Ammonia with tablet ...................................................................................................... 22

Bromine .......................................................................................................................... 24

Chlorine .......................................................................................................................... 26

Chlorine with tablet ........................................................................................................ 28

free Chlorine ............................................................................................................... 28

total Chlorine .............................................................................................................. 29

differentiated determination (free, combined, total) .................................................... 30

Chlorine HR with tablet ................................................................................................... 32

free Chlorine ............................................................................................................... 32

total Chlorine .............................................................................................................. 33


Chlorine with liquid reagent ............................................................................................ 36

free Chlorine ............................................................................................................... 36

total Chlorine .............................................................................................................. 37


Chlorine (powder pack) ................................................................................................... 40

free Chlorine ............................................................................................................... 40

total Chlorine .............................................................................................................. 41


Chlorine HR (powder pack) ............................................................................................. 44

free Chlorine ............................................................................................................... 44

total Chlorine .............................................................................................................. 45


Chlorine dioxide .............................................................................................................. 48

in presence of Chlorine ............................................................................................... 50

in absence of Chlorine ................................................................................................ 53

Chlorite in presence of Chlorine and Chlorine dioxide ..................................................... 54

Copper with tablet .......................................................................................................... 58


free Copper ................................................................................................................ 60

2 PM620_6c 02/2021

1.2

1.2.1

1.2.2

1.2.3

1.2.4

1.2.5

total Copper ............................................................................................................... 61

Copper (powder pack) .................................................................................................... 62

CyA-TEST (Cyanuric acid) ................................................................................................ 64

H

2

O

2

HR with liquid reagent (16 mm Ø) .......................................................................... 66

Hardness, Calcium with Calcio tablet .............................................................................. 68

Hardness, total ................................................................................................................ 70

Hardness, total HR .......................................................................................................... 72

Iodine ............................................................................................................................. 74

Iron with tablet ............................................................................................................... 76

Oxygen, active ................................................................................................................ 78

Ozone ............................................................................................................................. 80

in presence of Chlorine ............................................................................................... 82

in absence of Chlorine ................................................................................................ 84

PHMB (Biguanide) ........................................................................................................... 86

Phosphate, ortho LR with tablet ...................................................................................... 88 pH value LR with tablet ................................................................................................... 90 pH value with tablet ........................................................................................................ 92 pH value with liquid reagent ........................................................................................... 94 pH value HR with tablet .................................................................................................. 96

Sodium hypochlorite ....................................................................................................... 98

Sulfate with tablet ........................................................................................................ 100

Sulfate (powder pack) ................................................................................................... 102

Urea ............................................................................................................................. 104

Important notes ........................................................................................... 106

Correct use of reagents ................................................................................ 106

Cleaning of vials and accessories for analysis ................................................ 107

Guidelines for photometric measurements ................................................... 107

Sample dilution techniques ........................................................................... 109

Correcting for volume additions ................................................................... 109

Part 2 Instrument Manual

....................................................................... 111

2.1 Operation ..................................................................................................... 112

2.1.1

2.1.2

2.1.3

2.1.4

Set up .......................................................................................................... 112

Saving data – Important Notes ..................................................................... 112

Replacement of batteries .............................................................................. 112

Instrument (explosion drawing) .................................................................... 113

2.2 Overview of function keys ............................................................................ 115

2.2.1 Overview ...................................................................................................... 115

PM620_6c 02/2021

3

2.2.2

2.2.3

2.2.4

2.3

Displaying time and date .............................................................................. 116

User countdown ........................................................................................... 116

Display backlight .......................................................................................... 116

Operation mode ........................................................................................... 117

2.3.1

2.3.2

Automatic switch off .................................................................................... 117

Selecting a method ...................................................................................... 117

2.3.2.1 Method Information (F1) .............................................................................. 117

2.3.2.2 Chemical Species Information ....................................................................... 118

2.3.3 Differentiation .............................................................................................. 118

2.3.4 Performing Zero ........................................................................................... 118

2.3.5

2.3.6

Performing Tests ........................................................................................... 119

Ensuring reaction periods (countdown) ......................................................... 119

2.3.7

2.3.8

Changing chemical species ........................................................................... 120

Storing results .............................................................................................. 120

2.3.9 Printing results (Infra-Red Interface Module) (optional) .................................. 121

2.3.10 Perform additional measurements ................................................................ 121

2.3.11 Selecting a new method ............................................................................... 122

2.3.12 Measure absorbance .................................................................................... 122

2.4

2.4.1

Photometer settings: Table of Mode Functions .............................................. 123 blank because of technical requirements ...................................................... 124

2.4.2

2.4.3

Instrument basic settings 1 ........................................................................... 124

Printing of stored results ............................................................................... 128

2.4.4 Recall / delete stored results.......................................................................... 133

2.4.5 Calibration ................................................................................................... 138

2.4.6 Lab function ................................................................................................. 144

Profi-Mode ................................................................................................... 144

2.4.7

One Time Zero ............................................................................................. 145

User operations ............................................................................................ 146

User method list ........................................................................................... 146

User Concentration Methods ........................................................................ 148

User Polynomials .......................................................................................... 150

Delete User Methods .................................................................................... 153

2.4.8

Print Data of User Methods .......................................................................... 154

Initialise User Method System ....................................................................... 155

Special functions .......................................................................................... 156

Langelier Saturation Index ............................................................................ 156

2.4.9 Instrument basic settings 2 ........................................................................... 158

2.4.10 Instrument special functions /service ............................................................. 159

2.5

2.5.1

Data transfer ................................................................................................ 160

Data Printing ................................................................................................ 160

4 PM620_6c 02/2021

2.5.2

2.5.3

Data transfer to a personal computer ........................................................... 160

Internet Updates .......................................................................................... 160

Part 3 Enclosure

.............................................................................................. 161

3.1 Unpacking .................................................................................................... 162

3.2

3.3

Delivery contents .......................................................................................... 162 blank because of technical requirements ...................................................... 162

3.4 Technical data .............................................................................................. 163

3.5 Abbreviations ............................................................................................... 164

3.6 Troubleshooting ........................................................................................... 165

3.6.1 Operating messages in the display / error display .......................................... 165

3.6.2 General ........................................................................................................ 167

3.7 Declaration of CE-Conformity ....................................................................... 168

PM620_6c 02/2021

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6 PM620_6c 02/2021

Part 1

Methods

PM620_6c 02/2021

7

1.1 Table of Methods

No. Analysis

20 Acid demand to pH 4.3 T

30 Alkalinity, total T

Reagent Range Displayed as tablet 0.1-4 mmol/l

Method

[nm]

Acid/Indicator 1,2,5 610

OTZ Page

12 tablet 5-200 mg/l CaCO

3

Acid/Indicator 1,2,5 610 14

31 Alkalinity HR, total T

40 Aluminium T

50 Aluminium PP

60 Ammonia T tablet tablet

5-500

0.01-0.3 mg/l Al

PP + liquid 0.01tablet

0.25

mg/l CaCO

3

Acid/Indicator 1,2,5 610 mg/l Al

0.02-1 mg/l N

Eriochrome

Cyanine R 2

Eriochrome

Cyanine R 2

Indophenol blue 2,3

530

610

16

18

530 – 20

22

80 Bromine T tablet DPD 5 530 24

100 Chlorine T *

103 Chlorine HR T * tablet tablet

0.05-13 mg/l Br

2

0.01-6 mg/l Cl

2

0.1-10 mg/l Cl

2

101 Chlorine L *

110 Chlorine PP * liquid

PP

111 Chlorine HR PP * PP

120 Chlorine dioxide T tablet

150 Copper T * tablet

153 Copper PP

160 CyA-TEST T

PP tablet

0.02-4 mg/l Cl

2

0.02-2 mg/l Cl

2

0.1-8 mg/l Cl

2

0.02-11 mg/l ClO

2

0.05-5 mg/l Cu

DPD

DPD

DPD

DPD

1,2,3

1,2,3

1,2,3

1,2

530

530

530

530

26,

28

26,

32

26,

36

26,

40

DPD 1,2 530 – 26,

44

DPD, Glycine 1,2 530 48

Biquinoline 4

0.05-5 mg/l Cu

0-160 mg/l CyA

Bicinchoninate

Melamine

560

560

530

58

62

64

214 H

2

O

2

HR L liquid

191 Hardness, Calcium

2T

200 Hardness, total T tablet tablet

201 Hardness, total

215

220

HR T

Iodine T

Iron T tablet tablet tablet

40-500

0-500 mg/l H

2

O

2 mg/l CaCO

3

Titanium tetrachloride/acid

Murexide 4

530 – 66

560 68

70 2-50 mg/l CaCO

3

Metallphthalein 3 560

20-500 mg/l CaCO

3

Metallphthalein 3 560

0.05-3.6 mg/l I DPD 5 530

72

66

0.02-1 mg/l Fe PPST 3 560 76

* = free, combined, total; PP = powder pack; T = tablet; L = liquid; TT = tube test; LR = low range;

MR = middle range; HR = high range;

8 PM620_6c 02/2021

1.1 Table of Methods

No. Analysis

290 Oxygen, active T

Reagent Range Displayed as tablet 0.1-10 mg/l O

2

Method

DPD

300 Ozone (DPD) T

70 PHMB T tablet tablet

[nm]

530

OTZ Page

78

0.02-2 mg/l O

3

2-60

DPD/Glycine 5 530 mg/l PHMB Buffer/Indicator 560

80

86

319 Phosphate, T ortho LR

329 pH-Value LR T

330 pH-Value T

331 pH-Value L tablet tablet tablet liquid

0.05-4 mg/l PO

4

5.2-6.8

—

6.5-8.4

—

6.5-8.4

—

Ammoniummolybdate 2,3

Bromocresolpurple 5

660

560

Phenolred 5

Phenolred 5

560

560

88

90

92

94

332 pH-Value HR T tablet 8.0-9.6

— Thymolblue 5 560 96

212

355

360

390

Sodium hypochlorite T

Sulfate T

Sulfate PP

Urea T tablet tablet

PP tablet + liquid

0.2-16 % NaOCl Potassium iodide 5

5-100 mg/l SO

4

Bariumsulfate-

Turbidity

5-100

0.1-2.5

mg/l SO

4 mg/l Urea

Bariumsulfate-

Turbidity 2

Indophenol/

Urease

530

610

530

610

98

100

102

104

* = free, combined, total; PP = powder pack; T = tablet; L = liquid; TT = tube test; LR = low range;

MR = middle range; HR = high range;

PM620_6c 02/2021

9

1.1 Methods

The precision of Lovibond® Reagent Systems (tablets, powder packs and tube tests) is identical to the precision specified in standards literature such as American Standards (AWWA), ISO etc.

Most of the data referred to in these standard methods relates to Standard Solutions. Therefore they are not readily applicable to drinking-, boiler- or waste-water, since various interferences can have a major influence on the accuracy of the method.

For this reason we don’t state such potentially misleading data.

Due to the fact that each sample is different, the only way to check the tolerances (‘precision’) is the Standard Additions Method.

According to this method, first the original sample is tested. Then further samples (2 to 4) are taken and small amounts of a Standard Solution are added, and further results are obtained.

The amounts added range from approximately half, up to double the amount present in the sample itself.

These supplementary results make it possible to estimate the actual concentration of the original sample by comparison.

Literature

The reagent formulations are based on internationally recognised test methods. Some are described in national and/or international guidelines.

1. Deutsche Einheitsverfahren zur Wasser-, Abwasser- und Schlammuntersuchung

2. Standard Methods for the Examination of Water and Wastewater; 18th Edition, 1992

3. Photometrische Analysenverfahren, Schwedt,

Wissenschaftliche Verlagsgesellschaft mbH, Stuttgart 1989

4. Photometrische Analyse, Lange / Vejdelek, Verlag Chemie 1980

5. Colorimetric Chemical Analytical Methods, 9th Edition, London

Notes for searching:

OTZ (OneTimeZero) switching on and off, see Mode 55, page 145

Active Oxygen

Alkalinity-m

->

->

Oxygen, activ

Alkalinity, total

Calcium Hardness

Cyanuric acid

H

2

O

2

Total Hardness

->

->

->

Hardness, Calcium

CyA-TEST

Hardness, total total Alkalinity total Hardness

->

->

Alkalinity, total

Hardness, total

Langelier Saturation ->

Index (Water Balance)

10 PM620_6c 02/2021

PM620_6c 02/2021

11

1.1 Methods

2 0

Acid demand to pH 4.3 with Tablet

0.1 – 4 mmol/l

prepare Zero

press ZERO

1. Fill a clean vial (24 mm Ø) with 10 ml of the water

sample , close tightly with the cap.

2. Place the vial in the sample chamber making sure that

marks are aligned.

3. Press key.

4. Remove the vial from the sample chamber.

5. Add straight from the foil to the water sample and crush the tablet using a clean stirring rod.

6. Close the vial tightly with the cap and swirl several times until the tablet is dissolved.


Zero accepted

prepare Test

press TEST

8. Press key.

The result is shown in the display as Acid demand to pH 4.3 in mmol/l.

12 PM620_6c 02/2021

1.1 Methods

Notes:

1. The terms total Alkalinity, Alkalinity-m, m-Value and Acid demand to pH 4.3 are identical.

2. For accurate results exactly 10 ml of water sample must be taken for the test.

Reagent

ALKA-M-PHOTOMETER

Form of reagent/Quantity

Tablet / 100

Order-No.

513210BT

PM620_6c 02/2021

13

1.1 Methods

3 0 Alkalinity, total = Alkalinity-m = m-Value with Tablet

5 – 200 mg/l CaCO

3

1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample , close tightly with the cap.

prepare Zero

press ZERO


marks are aligned.

3. Press key.





Zero accepted

prepare Test

press TEST

8. Press key.

The result is shown in the display as total Alkalinity.

14 PM620_6c 02/2021

1.1 Methods

Notes:

1. The terms total Alkalinity, Alkalinity-m, m-Value and Alkalinity to pH 4.3 are identical.

2. For accurate results exactly 10 ml of water sample must be taken for the test.

3. Conversion table:

Acid demand to pH 4.3

DIN 38 409 (K

S4.3

)

German

°dH*

English

°eH*

French

°fH*

0.1

1 mg/l CaCO

3

0.02

0.056

*Carbonate hardness (reference = Hydrogencarbonate-anions)

Example:

10 mg/l CaCO

3

10 mg/l CaCO

3

= 10 mg/l x 0.056 = 0.56 °dH

= 10 mg/l x 0.02 = 0.2 mmol/l

4. CaCO

3

°dH

°eH

°fH

°aH

0.07

Reagent

ALKA-M-PHOTOMETER


Tablet / 100

Order-No.

513210BT

PM620_6c 02/2021

15

1.1 Methods

3 1 Alkalinity HR, total = Alkalinity-m HR = m-Value HR with Tablet

5 – 500 mg/l CaCO

3


prepare Zero

press ZERO

Countdown

1:00

start:

Zero accepted

prepare Test

press TEST

2. Place the vial in the sample chamber making sure that the marks are aligned.

3. Press key.




7. Press key.

Wait for a reaction period of 1 minute.

8. Remix the solution.


10. Press TEST key.

The result is shown in the display as total Alkalinity.

16 PM620_6c 02/2021

1.1 Methods

Notes:

1. For verification of the result look carefully at the bottom of the vial. If a thin yellow layer forms, then mix the vial again. This ensures that reaction is complete. Reread the result.


Acid demand to pH 4.3

DIN 38 409 (K

S4.3

)

German

°dH*

English

°eH*

French

°fH*

0.1

1 mg/l CaCO

3

0.02

0.056

*Carbonate hardness (reference = Hydrogencarbonate-anions)

Example:

10 mg/l CaCO

3

10 mg/l CaCO

3

= 10 mg/l x 0.056 = 0.56 °dH

= 10 mg/l x 0.02 = 0.2 mmol/l

3. CaCO

3

°dH

°eH

°fH

°aH

0.07

Reagent

ALKA-M-HR PHOTOMETER


Tablet / 100

Order-No.

513240BT

PM620_6c 02/2021

17

1.1 Methods

4 0 Aluminium with Tablet

0.01 – 0.3 mg/l Al

prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

Countdown

5:00




the

3. Press key.


5. Add straight from the foil to the water sample and crush the tablet using a clean stirring rod (dissolve the tablet).

6. Add straight from the foil to the same water sample and crush the tablet using a clean stirring rod.

7. Close the vial tightly with the cap and swirl gently several times until the tablets are dissolved.


marks are aligned.

9. Press key.

Wait for a reaction period of 5 minutes.

After the reaction period is finished the measurement starts

automatically.

The result is shown in the display in mg/l Aluminium.

18 PM620_6c 02/2021

1.1 Methods

Notes:

1. Before use, clean the vials and the accessories with Hydrochloric acid (approx. 20%).

Rinse them thoroughly with deionised water.

2. To get accurate results the sample temperature must be between 20°C and 25°C.

3. A low test result may be given in the presence of Fluorides and Polyphosphates. The effect of this is generally insignificant unless the water has fluoride added artificially.

In this case, the following table should be used:

Fluoride

[mg/l F] 0.05

Displayed value: Aluminium [mg/l Al]

0.10

0.15

0.20

0.25

0.30

0.2

0.4

0.6

0.8

1.0

0.05

0.06

0.06

0.06

0.07

0.11

0.11

0.12

0.13

0.13

0.16

0.17

0.18

0.20

0.21

0.21

0.23

0.24

0.26

0.28

0.27

0.28

0.30

0.32

0.36

0.32

0.34

0.37

0.40

0.45

1.5

0.09

0.20

0.29

0.37

0.48

---

Example: If the result of Aluminium determination is 0.15 mg/l Al and the Fluoride concentration is known to be 0.4 mg/l F, the true concentration of Aluminium is

0.17 mg/l Al.

4. A special tablet ingredient prevents effects on the measurement due to iron and manganese.

5. Al

Al

2

O

3

Reagent

Set ALUMINIUM No. 1 / No. 2

ALUMINIUM No. 1

ALUMINIUM No. 2

Form of reagent/Quantity Order-No.

Tablet / per 100 inclusive stirring rod

517601BT

Tablet / 100

Tablet / 100

515460BT

515470BT

PM620_6c 02/2021

19

1.1 Methods

5 0

Aluminium with Vario Powder Pack

0.01 – 0.25 mg/l Al

Countdown 1

0:30

start:

1 2

3

Countdown 2

5:00

start:

4

Use two clean vials (24 mm Ø) and mark one as blank for zeroing.

1. Fill in a 100 ml beaker.

2. Add the contents of one Vario Aluminum ECR F20

Powder Pack straight from the foil to the water sample.

3. Dissolve the powder using a clean stirring rod.

4. Press key.

Wait for a reaction period of 30 seconds.

After the reaction period is finished proceed as follows:

5. Add the contents of one Vario Hexamine F20 Powder

Pack straight from the foil to the same water sample.

6. Dissolve the powder using a clean stirring rod.

1 drop of Vario Aluminum ECR Masking

Reagent in the vial marked as blank.

8. Add 10 ml of the prepared water sample to the vial (this is the blank).

9. Add the remaining 10 ml of the prepared water sample in the second clean vial (this is the sample).

10. Close the vials tightly with the caps and swirl several times to mix the contents.

11. Press [ ] key.

Wait for a reaction period of 5 minutes .


20 PM620_6c 02/2021

1.1 Methods

prepare Zero

press ZERO

12. Place the vial (the blank) in the sample chamber making sure that the marks are aligned.

13. Press ZERO key.


15. Place the vial (the sample) in the sample chamber making sure that the marks are aligned.

Zero accepted

prepare Test

press TEST

16. Press TEST key.

The result is shown in the display in mg/l Aluminium.

Notes:

1. Before use, clean the vials and the accessories with Hydrochloric acid (approx. 20%).

Rinse them thoroughly with deionised water.

2. To get accurate results the sample temperature must be between 20°C and 25°C.

3. A low test result may be given in the presence of Fluorides and Polyphosphates. The effect of this is generally insignificant unless the water has fluoride added artificially.

In this case, the following table should be used:

Fluoride

[mg/l F]

0.2

0.4

0.6

0.05

0.05

0.06

0.06

Displayed value: Aluminium [mg/l Al]

0.10

0.15

0.20

0.25

0.11

0.11

0.12

0.16

0.17

0.18

0.21

0.23

0.24

0.27

0.28

0.30

0.30

0.32

0.34

0.37

0.8

1.0

0.06

0.07

0.13

0.13

0.20

0.21

0.26

0.28

0.32

0.36

0.40

0.45

1.5

0.09

0.20

0.29

0.37

0.48

---

Example: If the result of Aluminium determination is 0.15 mg/l Al and the Fluoride concentration is known to be 0.4 mg/l F, the true concentration of Aluminium is

0.17 mg/l Al.

4. Al

Al

2

O

3

Reagent

Set

VARIO Aluminium ECR F20

VARIO Aluminium Hexamine F 20

VARIO Aluminium ECR Masking Reagent


Powder Pack / 100

Powder Pack / 100

Liquid reagent / 25 ml

Order-No.

535000

PM620_6c 02/2021

21

1.1 Methods

6 0

Ammonia with Tablet

0.02 – 1 mg/l N

prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

Countdown

10:00


sample, close tightly with the cap.


marks are aligned.

3. Press key.




7. Close the vial tightly with the cap and swirl several times until the tablets are dissolved.


marks are aligned.

9. Press key.


After the reaction period is finished the measurement starts automatically.

The result is shown in the display in mg/l Ammonia as N.

22 PM620_6c 02/2021

1.1 Methods

Notes:

1. The tablets must be added in the correct sequence.

2. The AMMONIA No. 1 tablet will only dissolve completely after the AMMONIA No. 2 tablet has been added.

3. The temperature of the sample is important for full colour development.

At a temperature below 20°C the reaction period is 15 minutes.

4. Sea water samples:

Ammonia conditioning reagent is required when testing sea water or brackish water samples to prevent precipitation of salts.

Fill the test tube with the sample to the 10 ml mark and add one level spoonful of

Conditioning Powder. Mix to dissolve, then continue as described in the test instructions.

5. Conversion: mg/l NH

4 mg/l NH

3

= mg/l N x 1.29

= mg/l N x 1.22

6. N

NH

4

NH

3

Reagent Form of reagent/Quantity

Set AMMONIA No. 1 / No. 2 Tablet / per 100 inclusive stirring rod

AMMONIA No. 1

AMMONIA No. 2

Tablet / 100

Tablet / 100

Ammonia conditioning reagent

(Sea water samples)

(approx. 100 tests) powder / 15 g

Order-No.

517611BT

512580BT

512590BT

460170

PM620_6c 02/2021

23

1.1 Methods

8 0 Bromine with Tablet

0.05 – 13 mg/l Br

2




prepare Zero

press ZERO

3. Press ZERO key.

4. Remove the vial from the sample chamber and empty it, leaving a few drops remaining in the vial .

5. Add one DPD No. 1 tablet straight from the foil and crush the tablet using a clean stirring rod.

6. Add water sample to the 10 ml mark.



Zero accepted

prepare Test

press TEST

9. Press TEST key.

The result is shown in the display in mg/l Bromine.

24 PM620_6c 02/2021

1.1 Methods

Notes:

1. Vial cleaning:

As many household cleaners (e.g. dishwasher detergent) contain reducing substances,the subsequent determination of Bromine may show lower results. To avoid any measurement errors, only use glassware free of Chlorine demand.

Preparation: Put all applicable glassware into Sodium hypochlorite solution (0.1 g/l) forone hour, then rinse all glassware thoroughly with deionised water.

2. Preparing the sample:

When preparing the sample, the lost of Bromine, e.g. by pipetting or shaking, must be avoided. The analysis must take place immediately after taking the sample.

3. The DPD colour development is carried out at a pH value of 6.2 to 6.5. The reagent tablet therefore contains a buffer for the pH adjustment. Strong alkaline or acidic water samples must be adjusted between pH 6 and pH 7 before the reagent is added

(use 0.5 mol/l Sulfuric acid resp. 1 mol/l Sodium hydroxide).

4. Exceeding the measuring range:

Concentrations above 22 mg/l Bromine can lead to results showing 0 mg/l.

In this case, the water sample must be diluted with water free of Bromine.

10 ml of the diluted sample should be mixed with the reagent and the measurement repeated.

5. Oxidising agents such as Chlorine, Ozone etc. interfere as they react in the same way as

Bromine.

Reagent

DPD No. 1


Tablet / 100

Order-No.

511050BT

PM620_6c 02/2021

25

1.1 Methods

1 0 0

Chlorine with Tablet

0.01 – 6 mg/l Cl

2

1

1

1

0 3

Chlorine HR with Tablet

0.1 – 10 mg/l Cl

2

0 1

Chlorine with Liquid Reagent

0.02 - 4 mg/l Cl

2

1 0

Chlorine with Powder Pack

0.02 - 2 mg/l Cl

2

1 1 1

Chlorine HR with Powder Pack

0.1 - 8 mg/l Cl

2

Chlorine

>> diff free total

>> diff

>> free

>> total

The following selection is shown in the display: for the differentiated determination of free, combined and total Chlorine.

for the determination of free Chlorine.

for the determination of total Chlorine.

Select the desired determination with the arrow keys [ ] and [ ]. Confirm with [ ] key.

26 PM620_6c 02/2021

1.1 Methods

Notes:

1. Vial cleaning:

As many household cleaners (e.g. dishwasher detergent) contain reducing substances, the subsequent determination of Chlorine may show lower results. To avoid any measurement errors, only use glassware free of Chlorine demand.

Preparation: Put all applicable glassware into Sodium hypochlorite solution (0.1 g/l) for one hour, then rinse all glassware thoroughly with deionised water.

2. For individual testing of free and total Chlorine, the use of different sets of glassware is recommended (EN ISO 7393-2, 5.3)


When preparing the sample, the lost of Chlorine, e.g. by pipetting or shaking, must be avoided. The analysis must take place immediately after taking the sample.

4. The DPD colour development is carried out at a pH value of 6.2 to 6.5. The reagents therefore contain a buffer for the pH adjustment.

Strong alkaline or acidic water samples must be adjusted between pH 6 and pH 7 before the reagent is added (use 0.5 mol/l Sulfuric acid resp. 1 mol/l Sodium hydroxide).

Exceeding the measuring range:

Concentrations above:

10 mg/l Chlorine using tablets (method 100)

4 mg/l Chlorine using liquid reagents (method 101)

2 mg/l using powder packs (method 110)

8 mg/l using powder packs (method 111) can lead to results showing 0 mg/l. In this case, the water sample must be diluted with water free of Chlorine. 10 ml of the diluted sample should be mixed with the reagent and the measurement repeated.

5. Turbidity (can lead to errors):

The use of the reagent tablets in samples with high Calcium ion contents* and/or high conductivity* can lead to turbidity of the sample and therefore incorrect measurements.

In this case, the reagent tablets DPD No. 1 High Calcium and DPD No. 3 High Calcium should be used as an alternative.

* it is not possible to give exact values, because the development of turbidity depends on the nature of the sample.

6. If ??? is displayed at a differentiated test result see page 165.

7. Oxidizing agents such as Bromine, Ozone etc. interfere as they react in the same way as

Chlorine.

PM620_6c 02/2021

27

1.1 Methods

1 0

prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

0

Chlorine, free with Tablet

0.01 – 6 mg/l Cl

2



3. Press ZERO key.






9. Press TEST key.

The result is shown in the display in mg/l free Chlorine.

Notes:

See page 27

28 PM620_6c 02/2021

1.1 Methods

1 0 0 Chlorine, total with Tablet

0.01 – 6 mg/l Cl

2




prepare Zero

press ZERO

3. Press ZERO key.


5. Add one DPD No. 1 tablet and one DPD No. 3 tablet straight from the foil and crush the tablets using a clean stirring rod.




Zero accepted

prepare Test

press TEST

Countdown

2:00

9. Press TEST key.



The result is shown in the display in mg/l total

Chlorine.

Notes:

See page 27

PM620_6c 02/2021

29

1.1 Methods

1 0

prepare Zero

press ZERO

Zero accepted

prepare T1

press TEST

30

0

Chlorine, differentiated determination with Tablet

0.01 – 6 mg/l Cl

2


sample, close tightly with the cap.


marks are aligned.

3. Press ZERO key.






marks are aligned.

9. Press TEST key.


11. Add one DPD No. 3 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod.


PM620_6c 02/2021

1.1 Methods

T1 accepted

prepare T2

press TEST

Countdown

2:00

*,** mg/l free Cl

*,** mg/l comb Cl

*,** mg/l total Cl


marks are aligned.

14. Press TEST key.



The result is shown in the display in: mg/l free Chlorine mg/l combined Chlorine mg/l total Chlorine

Notes: See page 27

Reagent

Set DPD No. 1 / No. 3

DPD No. 1

DPD No. 3

Kombi-Pack

DPD No. 1 HIGH CALCIUM /

DPD No. 3 HIGH CALCIUM





Tablet / 100

Tablet / 100


Tablet / 100

Tablet / 100

Order-No.

517711BT

511050BT

511080BT

517781BT

515740BT

515730BT

PM620_6c 02/2021

31

1.1 Methods

1 0

prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

3

Chlorine HR, free with Tablet

0.1 – 10 mg/l Cl

2



3. Press ZERO key.


5. Add one DPD No. 1 HR tablet straight from the foil and crush the tablet using a clean stirring rod.




9. Press TEST key.


Notes:

See page 27

32 PM620_6c 02/2021

1.1 Methods

1 0

prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

Countdown

2:00

3 Chlorine HR, total with Tablet

0.1 – 10 mg/l Cl

2



3. Press ZERO key.






9. Press TEST key.



The result is shown in the display in mg/l total Chlorine.

Notes:

See page 27

PM620_6c 02/2021

33

1.1 Methods

1 0

prepare Zero

press ZERO

Zero accepted

prepare T1

press TEST

3 Chlorine HR, differentiated determination with Tablet

0.1 – 10 mg/l Cl

2

1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap.


3. Press ZERO key.


5. Add one DPD No. 1 HR tablet straight from the foil and crush the tablet using a clean stirring rod.




9. Press TEST key.


11. Add one DPD No. 3 HR tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod.

34 PM620_6c 02/2021

1.1 Methods

T1 accepted

prepare T2

press TEST

Countdown

2:00

*,** mg/l free Cl

*,** mg/l comb Cl

*,** mg/l total Cl

Notes: See page 27

Reagent

DPD No. 1 HR

DPD No. 3 HR



14. Press TEST key.





Tablet / 100

Tablet / 100

Order-No.

511500BT

511590BT

PM620_6c 02/2021

35

1.1 Methods

1 0 1

Chlorine, free with Liquid Reagent

0.02 – 4 mg/l Cl

2




prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

3. Press ZERO key.

4. Remove the vial from the sample chamber and empty the vial .

5. Fill the vial with drops of the same size by holding the bottle vertically and squeeze slowly:

6 drops of DPD 1 buffer solution

2 drops of DPD 1 reagent solution


7. Close the vial tightly with the cap and swirl several times to mix the contents.


marks are aligned.

9. Press TEST key.


Notes (free and total Chlorine):

1. Also see page 27 and 39

36 PM620_6c 02/2021

1.1 Methods

1 0 1

Chlorine, total with Liquid Reagent

0.02 – 4 mg/l Cl

2




prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

Countdown

2:00

3. Press ZERO key.





3 drops of DPD 3 solution




marks are aligned.

9. Press TEST key.




Chlorine.

PM620_6c 02/2021

37

1.1 Methods

1 0 1

Chlorine, differentiated determination with Liquid Reagent

0.02 – 4 mg/l Cl

2



prepare Zero

press ZERO

Zero accepted

prepare T1

press TEST


marks are aligned.

3. Press ZERO key.








marks are aligned.

9. Press TEST key.


11. Add 3 drops of DPD 3 solution to the same water

sample.


38 PM620_6c 02/2021

1.1 Methods


marks are aligned.

T1 accepted

prepare T2

press TEST

Countdown

2:00

14. Press TEST

Wait for a

key. reaction period of 2 minutes .

*,** mg/l free Cl

*,** mg/l comb. Cl

*,** mg/l total Cl



Notes:

1. After use replace the bottle caps securely noting the colour coding.

2. Store the reagent bottles in a cool, dry place ideally between 6°C and 10°C .

3. Also see page 27

4. In samples with high Calcium ion contents* and/or high conductivity* can lead to turbidity of the sample and therefore incorrect measurements. In this case, the reagent tablets DPD No. 1 High Calcium and DPD No. 3 High Calcium should be used as an alternative. (Order-No.: see reagents „Chlorine with Tablet“).

* it is not possible to give exact values, because the development of turbidity depends on the nature of the sample.

Reagent

Set

DPD No. 1 buffer solution

DPD No. 1 reagent solution

DPD No. 3 solution

DPD No. 1 buffer solution

DPD No. 1 reagent solution

DPD No. 3 solution


(approx. 300 tests)

3 x Liquid reagent / 15 ml






Order-No.

471056

471010

471020

471030

PM620_6c 02/2021

39

1.1 Methods

1 1

prepare Zero

press ZERO

1

3

2

4

0 Chlorine, free with Powder Pack

0.02 – 2 mg/l Cl

2




marks are aligned.

3. Press ZERO key.


5. Add the contents of one Chlorine FREE-DPD /

F10 Powder Pack straight from the foil to the water

sample.

6. Close the vial tightly with the cap and swirl several times to mix the contents (approx. 20 seconds).


Zero accepted

prepare Test

press TEST

8. Press TEST key.

The result is shown in the display in mg/l free

Chlorine.

Notes:

See page 27

40 PM620_6c 02/2021

1.1 Methods

1 1

prepare Zero

press ZERO

1

3

2

4

0 Chlorine, total with Powder Pack

0.02 – 2 mg/l Cl

2




marks are aligned.

3. Press ZERO key.


5. Add the contents of one Chlorine TOTAL-DPD /


sample.



Zero accepted

prepare Test

press TEST

Countdown

3:00

8. Press TEST key.




Chlorine.

Notes:

See page 27

PM620_6c 02/2021

41

1.1 Methods

1 1

prepare Zero

press ZERO

1

3

2

4

0 Chlorine, differentiated determination with Powder Pack

0.02 – 2 mg/l Cl

2




marks are aligned.

3. Press ZERO key.


5. Add the contents of one Chlorine FREE-DPD/


sample.



Zero accepted

prepare T1

press TEST

8. Press TEST key.

9. Remove the vial from the sample chamber, empty the vial, rinse vial and cap several times and then fill the vial

10 ml of the water sample .

10. Add the contents of one Chlorine TOTAL-DPD /


sample.


42 PM620_6c 02/2021

1.1 Methods

T1 accepted

prepare T2

press TEST

Countdown

3:00

*,** mg/l free Cl

*,** mg/l comb. Cl

*,** mg/l total Cl

Notes: See page 27

Reagent

Clorine Free-DPD/F10

Chlorine Total-DPD/F10


marks are aligned.

13. Press TEST key.





Powder Pack / 100

Powder Pack / 100

Order-No.

530100

530120

PM620_6c 02/2021

43

1.1 Methods

1 1

prepare Zero

press ZERO

1

3

Zero accepted

prepare Test

press TEST

3

10 ml

5 ml

2

4

1

Chlorine HR, free with Powder Pack

plastic vial (type

3) 10 mm

0.1 – 8 mg/l Cl

2



3. Press ZERO key.


5. Add the contents of two Chlorine Free-DPD/F10 Powder Pack straight from the foil into the water sample.

6. Close the vial tightly with the cap and invert several times to mix the contents (20 sec.).


8. Press the TEST key.


Notes:

See page 27

44 PM620_6c 02/2021

1.1 Methods

1 1

prepare Zero

press ZERO

1

3

Zero accepted

prepare Test

press TEST

Countdown

3:00

3

10 ml

5 ml

2

4

1 Chlorine HR, total with Powder Pack


3) 10 mm

0.1 – 8 mg/l Cl

2



3. Press ZERO key.


5. Add the contents of two Chlorine TOTAL-DPD/F10

Powder Pack straight from the foil into the water sample.



8. Press TEST key.

Wait for a reaction period of 3-6 minutes .


The result is shown in the display in mg/l total Chlorine.

Notes:

See page 27

PM620_6c 02/2021

45

1.1 Methods

1 1

prepare Zero

press ZERO

1

3

Zero accepted

prepare T1

press TEST

3

10 ml

5 ml

2

4

1

Chlorine HR, differentiated determination with Powder Pack


3) 10 mm

0.1 – 8 mg/l Cl

2



3. Press ZERO key.


5. Add the contents of two Chlorine Free-DPD/F10 Powder Pack straight from the foil into the water sample.




9. Remove the vial from the sample chamber, empty the vial, rinse vial and cap several times and then fill the vial with 5 ml of the water sample.

10. Add the contents of two Chlorine TOTAL-DPD/F10

Powder Pack straight from the foil into the water sample.

46 PM620_6c 02/2021

1.1 Methods

T1 accepted

prepare T2

press TEST

Countdown

3:00

*,** mg/l free Cl

*,** mg/l comb. Cl

*,** mg/l total Cl

Notes: See page 27

Reagent

Clorine Free-DPD/F10

Chlorine Total-DPD/F10



13. Press TEST key.





Powder Pack / 100

Powder Pack / 100

Order-No.

530100

530120

PM620_6c 02/2021

47

1.1 Methods

1 2 0

Chlorine dioxide with Tablet

0.02 – 11 mg/l ClO

2

Chlorine dioxide

>> with Cl without Cl

>> with Cl

The following selection is shown in the display: for the determination of Chlorine dioxide in the presence of Chlorine.

>> without Cl for the determination of Chlorine dioxide in the absence of Chlorine.

Select the desired determination with the arrow keys

[ ] and [ ]. Confirm with [ ] key.

48 PM620_6c 02/2021

1.1 Methods

Notes:

1. Vial cleaning:

As many household cleaners (e.g. dishwasher detergent) contain reducing substances, the subsequent determination of Chlorine dioxide may show lower results. To avoid any measurement errors, only use glassware free of Chlorine demand.


2. Preparing the sample: When preparing the sample, the lost of Chlorine dioxide, e.g. by pipetting or shaking, must be avoided. The analysis must take place immediately after taking the sample.

3. The DPD colour development is carried out at a pH value of 6.2 to 6.5. The reagent tablet therefore contains a buffer for the pH adjustment.

Strong alkaline or acidic water samples must be adjusted between pH 6 and pH 7 before the tablet is added (use 0.5 mol/l Sulfuric acid resp. 1 mol/l Sodium hydroxide).


Concentrations above 19 mg/l Chlorine dioxide can lead to results showing 0 mg/l. In this case, the water sample must be diluted with water free of Chlorine dioxide. 10 ml of the diluted sample should be mixed with the reagent and the measurement repeated.

5. If ??? is displayed at a differentiated test result see page 165.

6. Oxidising agents such as Chlorine, Ozone etc. interfere as they react in the same way as

Chlorine dioxide.

PM620_6c 02/2021

49

1.1 Methods

1 2 0

Chlorine dioxide in the presence of Chlorine with Tablet

0.02 – 11 mg/l ClO

2


sample .

2. Add one GLYCINE tablet straight from the foil and crush the tablet using a clean stirring rod.


4. Fill a second clean vial with 10 ml of water sample

prepare Zero

press ZERO

Zero accepted

prepare T1

press TEST

50


6. Press ZERO key.



9. Transfer the contents of the first vial (Glycine solution) into the prepared vial (point 8).



12. Press TEST key.

PM620_6c 02/2021

1.1 Methods

T1 accepted

prepare T2

press TEST

T2 accepted

prepare T3

press TEST

Countdown

2:00

*,** mg/l ClO

2

*,** mg/l free Cl

*,** mg/l comb. Cl

*,** mg/l total Cl

13. Remove the vial from the sample chamber, empty the vial, rinse vial and cap several times. Fill with a few drops of water sample .





18. Press TEST key.





marks are aligned.

23. Press TEST key.



The result is shown in the display in: as Chlorine dioxide in mg/l ClO

2

.

mg/l free Chlorine mg/l combined Chlorine mg/l total Chlorine

Notes:

See next page.

PM620_6c 02/2021

51

1.1 Methods

Notes: (Chlorine dioxide in the presence of Chlorine)

1. The conversion factor to convert Chlorine dioxide (display) to Chlorine dioxide as

Chlorine units is 2.6315. mg/l ClO

2

[Cl] = mg/l ClO

2

· 2.6315

Chlorine dioxide displayed as Chlorine units ClO

2 poolwater treatment according to DIN 19643.

[Cl] has its origin in swimming

2. The total Chlorine result given includes the contribution of the chlorine dioxide as

Chlorine units reading. For true Chlorine value add the free and combined Chlorine values.

3. See also page 49.

Reagent

DPD No. 1

DPD No. 3

GLYCINE


Tablet / 100

Tablet / 100

Tablet / 100

Order-No.

511050BT

511080BT

512170BT

52 PM620_6c 02/2021

1.1 Methods

1 2 0

Chlorine dioxide in absence of Chlorine with Tablet

0.02 – 11 mg/l ClO

2




prepare Zero

press ZERO

3. Press ZERO key.






Zero accepted

prepare Test

press TEST

*,** mg/l ClO

2

9. Press TEST key.

The result is shown in the display as Chlorine dioxide in mg/l ClO

2

.

Notes:

See page 49

PM620_6c 02/2021

53

1.1 Methods

1 0 0

Chlorite in presence of Chlorine and

Chlorine dioxide

0,01 – 6 mg/l Cl

2

Firstly, the glycine method is used to measure the concentration of Chlorine Dioxide. This is then followed by the determination of the free and total chlorine, from which the Combined Chlorine can be calculated. A third test is performed which measures the Total Chlorine concentration plus any Chlorite present. Finally, the Chlorite concentration can be calculated from the three recorded results.

The following selection is shown in the display:

Chlorine


>> free select for the determination of free Chlorine.

prepare Zero

press ZERO

54

1. Fill a clean vial with 10 ml of water sample .

2. Add one GLYCINE tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod.

3. Close the vial tightly with the cap and swirl gently several times until the tablet is dissolved.

4. Fill a second clean vial with 10 ml of water sample , close tightly with the cap.


6. Press ZERO key.

7. Remove the vial from the sample chamber and empty the vial.


PM620_6c 02/2021

1.1 Methods

Zero accepted

prepare Test

press TEST

Zero accepted

prepare Test

press TEST

PM620_6c 02/2021

9. Transfer the contents of the first vial (Glycine solution) into the prepared vial (point 8).



12. Press TEST key.

Record the displayed test result (G).

13. Remove the vial from the sample chamber, empty the vial, rinse vial and cap several times. Fill with a few drops of water sample .





18. Press TEST key.

Record the displayed test result (A).



55

1.1 Methods

Zero accepted

prepare Test

press TEST

Zero accepted

prepare Test

press TEST



23. Wait for a reaction period of 2 minutes .

24. Press TEST key.

Record the displayed test result (C).


26. Add one DPD ACIDIFYING tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod.

27. Wait for a reaction period of 2 minutes .

28. Add one DPD NEUTRALISING tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod.



31. Press TEST key.

Record the displayed test result (D).

56 PM620_6c 02/2021

1.1 Methods

Calculations : mg/l Chlorine dioxide = result G x 1,9 mg/l free Chlorine = result A – result G mg/l combined Chlorine = result C – result A mg/l Chlorite = result D – ( result C + 4 x result G )

Tolerances:

1. By calculation of non direct analysable parameters it is necessary to consider the error propagation besed on the possible tolerances of the single test tesults.

2. see Notes Chlorine

Reagent

Set DPD No. 1 / No. 3

DPD No. 1

DPD No. 3

GLYCINE

DPD ACIDIFYING

DPD NEUTRALISING



Tablet / 100

Tablet / 100

Tablet / 100

Tablet / 100

Tablet / 100

Order-No.

517711BT

511050BT

511080BT

512170BT

512120

511020BT

PM620_6c 02/2021

57

1.1 Methods

1 5 0

Copper with Tablet

0.05 – 5 mg/l Cu

Copper



>> diff

>> free

>> total for the differentiated determination of free, combined and total Copper.

for the determination of free Copper.

for the determination of total Copper.

Select the desired determination with the arrow keys


Note:

1. If ??? is displayed at the diffentiated test result see page 165.

Reagent

Set

COPPER No. 1 / No. 2

COPPER No. 1

COPPER No. 2



Tablet / 100

Tablet / 100

Order-No.

517691BT

513550BT

513560BT

58 PM620_6c 02/2021

1.1 Methods

1 5 0

Copper, differentiated determination with Tablet

0.05 – 5 mg/l Cu

prepare Zero

press ZERO

Zero accepted

prepare T1

press TEST




marks are aligned.

3. Press ZERO key.


5. Add one COPPER No. 1 tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod.



marks are aligned.

8. Press TEST key.


10. Add one COPPER No. 2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod.



T1 accepted

prepare T2

press TEST

*,** mg/l free Cu

*,** mg/l comb Cu

*,** mg/l total Cu

PM620_6c 02/2021

13. Press TEST key.

The result is shown in the display in: mg/l free Copper mg/l combined Copper mg/l total Copper

59

1.1 Methods

1 5 0

Copper, free with Tablet

0.05 – 5 mg/l Cu



prepare Zero

press ZERO


marks are aligned.

3. Press ZERO key.


5. Add one COPPER No. 1 tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod.



Zero accepted

prepare Test

press TEST

8. Press TEST key.

The result is shown in the display in mg/l free Copper.

60 PM620_6c 02/2021

1.1 Methods

1 5 0

Copper, total with Tablet

0.05 – 5 mg/l Cu



prepare Zero

press ZERO


marks are aligned.

3. Press ZERO key.


5. Add one COPPER No. 1 tablet and one COPPER

No. 2 tablet straight from the foil to the water sample and crush the tablets using a clean stirring rod.



Zero accepted

prepare Test

press TEST

8. Press TEST key.

The result is shown in the display in mg/l total Copper.

PM620_6c 02/2021

61

1.1 Methods

1 5 3 Copper, free (Note 1) with Vario Powder Pack

0.05 – 5 mg/l Cu

prepare Zero

press ZERO

1

3

Zero accepted

prepare Test

press TEST

Countdown

2:00

2

4



3. Press key.


5. Add the contents of one VARIO Cu 1 F10 Powder

Pack straight from the foil to the water sample.

6. Close the vial tightly with the cap and swirl several times to mix the contents (Note 3).


8. Press key.



The result is shown in the display in mg/l Copper

62 PM620_6c 02/2021

1.1 Methods

Notes:

1. For determination of total Copper digestion is required.

2. Extremely acid water samples (pH 2 or less) must be adjusted between pH 4 and pH 6 before the reagent is added (with 8 mol/l Potassium hydroxide solution KOH).

Caution: pH values above 6 can lead to Copper precipitation.

3. Accuracy is not affected by undissolved powder.

4. Interferences:

Cyanide, CN Cyanide prevents full colour development.

Add 0.2 ml Formaldehyde to 10 ml water sample and wait for a reaction time of 4 minutes (Cyanide is masked). After this perform test as described. Multiply the result by 1.02 to correct the sample dilution by Formaldehyde.

Silver, Ag + If a turbidity remains and turns black, silver interference is likely.

Add 10 drops of saturated Potassium chloride solution to 75 ml of water sample. Filtrate through a fine filter. Use 10 ml of the filtered water sample to perform test.

Reagent

VARIO Cu 1 F10


Powder Pack / 100

Order-No.

530300

PM620_6c 02/2021

63

1.1 Methods

1 6 0

CyA-TEST (Cyanuric acid) with Tablet

0 – 160 mg/l CyA


sample and 5 ml deionised water (Note 1) , close tightly with the cap.


prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

3. Press ZERO key.


5. Add one CyA-TEST tablet straight from the foil to the prepared water sample and crush the tablet using a clean stirring rod.

6. Close the vial tightly with the cap and swirl several times until the tablet is dissolved (Note 2, 3).


marks are aligned.

8. Press TEST key.

The result is shown in the display in mg/l Cyanuric acid.

64 PM620_6c 02/2021

1.1 Methods

Notes:

1. Use deionised water or tap water free of Cyanuric acid.

2. If Cyanuric acid is present a cloudy solution will occur.

Small single particles are not necessarily caused by Cyanuric acid.

3. Dissolve the tablet completely (therefore swirl the vial approx. 1 minute).

Un-dissolved particles of the tablet can cause results that are too high.

Reagent

CyA-TEST


Tablet / 100

Order-No.

511370BT

PM620_6c 02/2021

65

1.1 Methods

2 1 4 H

2

O

2

(Hydrogen peroxide) HR with Liquid Reagent

40 – 500 mg/l H

2

O

2

Insert the adapter for 16 mm Ø vials.

1. Fill a clean vial (16 mm Ø) with 10 ml of the water sample , close tightly with the cap. (Note 1, 2)

Ø 16 mm

prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST


3. Press the ZERO key.


5. Fill the prepared vial with drops of the same size by holding the bottle vertically and squeeze slowly:

6 drops of H

2

O

2

-Reagent

6. Close the vial tightly with the cap and invert several times to mix the contents.



The result is shown in the display in mg/l H

2

O

2

.

66 PM620_6c 02/2021

1.1 Methods

Notes:

1. The hydrogen peroxide is determined in the form of yellow/orange coloured peroxotitanic acids in strongly acidic media. In connection with neutral to weakly alkaline (~pH 10) samples, the acid in the reagent is sufficient in order to produce a medium suitable for measurement. In the case of strongly alkaline samples (pH > 10), the samples must be acidified before measurement otherwise the results may be deficient. This is achieved by diluting the sample with a 5% sulphuric acid solution, for example, at a ratio of 1:1.

In contrast to many other colour reactions, in connection with the presence of hydrogen peroxide, discoloration with long-term stability is achieved that can still be measured after 24 h. Particles in the sample solution or turbidity distort the analysis and must be eliminated by centrifuging or simply filtering the sample solution prior to performing the measurement. Falsification of the measurement results should also be expected in connection with coloured solutions.

2. Oxidising agents such as chlorine, bromine, chlorine dioxide and ozone do not distort the analysis. On the other hand, however, water discoloration does distort the analysis. In this case, proceed as described in the following:

• Fill a clean vial (16 mm Ø) with 10 ml of the water sample and perform zero calibration

• Measure the sample solution without the addition of drops of reagent ( result B).

• Then the same sample solution, measured with the addition of the reagent drops

( result A).

• Calculations: mg/l H

2

O

2

= result A – result B

3. Attention: The reference reagent contains a 25% sulphuric acid solution. It is recommended to wear appropriate protective clothing (protective goggles/gloves).

Reagent

H

2

O

2

-reagent



Order-No.

424991

PM620_6c 02/2021

67

1.1 Methods

1 9 1

Hardness, Calcium 2T with Tablet

0 – 500 mg/l CaCO

3

1. Fill a clean vial (24 mm Ø) with 10 ml of water sample , close tightly with the cap.

prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

Countdown

2:00


marks are aligned.

3. Press key.


5. Add straight from the foil to the 10 ml water sample, crush the tablet using a clean stirring rod and dissolve the tablet completely.

6. Add one CALCIO H No. 2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod.

7. Close the vial tightly with the cap and swirl gently several times until the tablet is completely dissolved.


marks are aligned.

9. Press key.



The result is shown in the display as Calcium Hardness.

68 PM620_6c 02/2021

1.1 Methods

Notes:

1. To optimise the readings an optional batch related calibration can be performed using

Mode 40, see page 138.

2. Strong alkaline or acidic water samples must be adjusted to a pH-value between pH 4 and 10 before the tablets are added (use 1 mol/l Hydrochloride acid resp. 1 mol/l Sodium hydroxide).

3. For accurate test results exactly 10 ml of water sample must be taken for the test.

4. This method was developed from a volumetric procedure for the determination of

Calcium Hardness. Due to undefined conditions, the deviations from the standardised method may be greater.

5. The tolerance of the method is increasing with higher concentrations. When diluting samples, this should be taken in account, always measuring in the first third of the range.

6. Interferences:

• Magnesium hardness up to 200 mg/l CaCO

3

does not interfere.

• Iron concentration above 10 mg/l may cause low results.

• Zinc concentration above 5 mg/l may cause high results.

7. CaCO

3

°dH

°eH

°fH

°aH

Reagent

Set

CALCIO H No. 1 / No. 2



Order-No.

517761BT

PM620_6c 02/2021

69

1.1 Methods

2 0 0

Hardness, total with Tablet

2 – 50 mg/l CaCO

3



prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

Countdown

5:00


marks are aligned.

3. Press key.





marks are aligned.

8. Press key.



The result is shown in the display as total Hardness.

70 PM620_6c 02/2021

1.1 Methods

Notes:

1. Strong alkaline or acidic water samples must be adjusted between pH 4 and pH 10 before the tablet is added (use 1 mol/l Hydrochloric acid resp. 1mol/l Sodium hydroxide).


1 mg/l CaCO

1 °dH

1 °fH

3

1 °eH

3. CaCO

3

°dH

°eH

°fH

°aH mg/l CaCO

3

----

17.8

10.0

14.3

°dH

0.056

----

0.56

0.80

°fH

0.10

1.78

----

1.43

°eH

0.07

1.25

0.70

----

Reagent

HARDCHECK P


Tablet / 100

Order-No.

515660BT

PM620_6c 02/2021

71

1.1 Methods

2 0 1 Hardness, total HR with Tablet

20 – 500 mg/l CaCO

3

1. Fill a clean vial (24 mm Ø) with 1 ml of the water sample and 9 ml of deionised water , close tightly with the cap.

prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

Countdown

5:00


3. Press key.





8. Press key.



The result is shown in the display as total Hardness.

72 PM620_6c 02/2021

1.1 Methods

Notes:

1. Strong alkaline or acidic water samples must be adjusted between pH 4 and pH 10 before the tablet is added (use 1 mol/l Hydrochloric acid resp. 1mol/l Sodium hydroxide).


1 mg/l CaCO

1 °dH

3 mg/l CaCO

3

----

17.8

10.0

°dH

0.056

----

0.56

°fH

0.10

1.78

----

°eH

0.07

1.25

0.70

1 °fH

1 °eH

3. CaCO

3

°dH

°eH

°fH

°aH

14.3

0.80

1.43

----

Reagent

HARDCHECK P


Tablet / 100

Order-No.

515660BT

PM620_6c 02/2021

73

1.1 Methods

2 1 5 Iodine with Tablet

0.05 – 3.6 mg/l I



prepare Zero

press ZERO


marks are aligned.

3. Press key.

4. Remove the vial from the sample chamber, empty the vial leaving a view drops in.

5. Add straight from the foil to the water sample and crush the tablet using a clean stirring

rod.




Zero accepted

prepare Test

press TEST

9. Press key.

The result is shown in the display in mg/l Iodine.

74 PM620_6c 02/2021

1.1 Methods

Notes:

1. Oxidizing reagents, such as Chlorine, Bromine, etc. interfere as they react in the same way as Iodine.

Reagent

DPD No. 1


Tablet / 100

Order-No.

511050BT

PM620_6c 02/2021

75

1.1 Methods

2 2 0 Iron (Note 1) with Tablet

0.02 – 1 mg/l Fe

Determination of total dissolved Iron Fe 2+ and Fe 3+ *

*This information refers to analysis of the water sample without digestion.

prepare Zero

press ZERO




marks are aligned.

3. Press ZERO key.


5. Add one IRON LR tablet straight from the foil to the water sample and crush the tablet using a clean stirring

rod.


Zero accepted

prepare Test

press TEST

Countdown

5:00


marks are aligned.

8. Press TEST key.



The result is shown in the display in mg/l Iron (Fe 2+/3+ ).

Notes:

1. This method determines the total dissolved Iron as Fe 2+ and Fe 3+ .

2. The IRON (II) LR tablet is used for differentiation – as described above – instead of the

IRON LR tablet.

Fe 3+ = Fe 2+/3+ – Fe 2+

3. For the determination of total dissolved and undissolved iron digestion is required.

An example is described on page 77.

76 PM620_6c 02/2021

1.1 Methods

Notes:

Iron Determination dissolved Iron

Filtration dissolved and undissolved Iron

Digestion

Fe 2+ + Fe 3+ Fe 2+

IRON LR tablet

IRON (II) LR tablet result A minus

= Fe 3+ result B

Fe 2+ + Fe

IRON LR tablet

3+

Digestion procedure for the determination of total dissolved and undissolved iron.

1. Add 1 ml of concentrated sulfuric acid to 100 ml water sample. Heat and boil for 10 minutes or until all particles are dissolved. After cooling down, the sample is set to a pHvalue of 3 to 6 by using ammonia solution. Refill with deionised water to the previous volume of 100 ml and mix well. 10 ml of this pre-treated solution is used for the following analysis. Perform as described by the selected test method.

2. Water which has been treated with organic compounds like corrosion inhibitors must be oxidised where necessary to break down the iron. Therefore add 1 ml concentrated sulfuric acid and 1 ml concentrated nitric acid to 100 ml water sample and boil to approx. half volume. After cooling down, proceed as described above.

Reagent

IRON LR

IRON (II) LR


Tablet / 100

Tablet / 100

Order-No.

515370BT

515420BT

PM620_6c 02/2021

77

1.1 Methods

2 9 0

Oxygen, active* with Tablet

0.1 – 10 mg/l O

2



prepare Zero

press ZERO


marks are aligned.

3. Press ZERO key.


5. Add one DPD No. 4 tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod.



Zero accepted

prepare Test

press TEST

Countdown

2:00

8. Press TEST key.



The result is shown in the display in mg/l active

Oxygen.

78 PM620_6c 02/2021

1.1 Methods

Notes:

* Active Oxygen is a synonym for a common disinfectant (based on “Oxygen“)

in Swimming Pool Treatment.

1. When preparing the sample, the lost of Oxygen, e.g. by pipetting or shaking, must be avoided.

2. The analysis must take place immediately after taking the sample.

Reagent

DPD No. 4


Tablet / 100

Order-No.

511220BT

PM620_6c 02/2021

79

1.1 Methods

3 0 0 Ozone with Tablet

0.02 – 2 mg/l O

3

Ozon

>> with Cl without Cl


>> with Cl

>> without Cl for the determination of Ozone in the presence of Chlorine. for the determination of Ozone in the absence of Chlorine.

Select the desired method with the arrow keys


80 PM620_6c 02/2021

1.1 Methods

Notes:

1. Vial cleaning:

As many household cleaners (e.g. dishwasher detergent) contain reducing substances, the subsequent determination of Ozone may show lower results. To avoid any measurement errors, only use glassware free of Chlorine demand.



When preparing the sample, the lost of Ozone, e.g. by pipetting or shaking, must be avoided. The analysis must take place immediately after taking the sample.

3. The DPD colour development is carried out at a pH value of 6.2 to 6.5. The reagent tablet therefore contains a buffer for the pH adjustment.

Strong alkaline or acidic water samples must be adjusted between pH 6 and pH 7 before the tablet is added (use 0.5 mol/l Sulfuric acid resp. 1 mol/l Sodium hydroxide).


Concentrations above 6 mg/l Ozone can lead to results showing 0 mg/l. In this case, the water sample must be diluted with water free of Ozone. 10 ml of the diluted sample should be mixed with the reagent and the measurement repeated.

5. If ??? is displayed at the diffentiated test result see page 165.

6. Oxidising agents such as Bromine, Chlorine etc. interfere as they react in the same way as Ozone.

Reagent

Set

DPD No. 1 / No. 3

DPD No. 1

DPD No. 3

GLYCINE



Tablet / 100

Tablet / 100

Tablet / 100

Order-No.

517711BT

511050BT

511080BT

512170BT

PM620_6c 02/2021

81

1.1 Methods

3 0 0

prepare Zero

press ZERO

Zero accepted

prepare T1

press TEST

Countdown

2:00

Ozone, in the presence of Chlorine with Tablet

0.02 – 2 mg/l O

3



3. Press ZERO key.






9. Press TEST key.



10. Remove the vial from the sample chamber, empty the vial, rinse vial and cap several times.

11. Fill a second clean vial with 10 ml of water sample.

12. Add one GLYCINE tablet straight from the foil and crush the tablet using a clean stirring rod.

82 PM620_6c 02/2021

1.1 Methods

T1 accepted

prepare T2

press TEST

Countdown

2:00

*,** mg/l O

3

*,** mg/l total Cl


14. Add one DPD No. 1 tablet and one DPD No. 3 tablet straight from the foil into the first cleaned vial and crush the tablets using a clean stirring rod.

15. Transfer the contents of the second vial (Glycine solution) into the prepared vial (point 14).



18. Press TEST key.



The result is shown in the display in: mg/l Ozone mg/l total Chlorine

Notes:

See page 81

PM620_6c 02/2021

83

1.1 Methods

3 0 0

Ozone, in absence of Chlorine with Tablet

0.02 – 2 mg/l O

3




prepare Zero

press ZERO

3. Press ZERO key.






Zero accepted

prepare Test

press TEST

Countdown

2:00

9. Press TEST key.



The result is shown in the display in mg/l Ozone.

Notes:

See page 81.

84 PM620_6c 02/2021

PM620_6c 02/2021

85

1.1 Methods

7 0

PHMB (Biguanide) with Tablet

2 – 60 mg/l PHMB




prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

3. Press key.





marks are aligned.

8. Press key.

The result is shown in the display in mg/l PHMB.

86 PM620_6c 02/2021

1.1 Methods

Notes:

1. Clean vials with the brush immediately after analysis.

2. Vials and stirring rods may turn blue after prolonged use. In this case clean vials and stirring rods with a laboratory detergent (see chapter 1.2.2 Cleaning of vials and accessories for analysis). Rinse vials and caps thoroughly with tap water and then with deionised water.

3. The test result is influenced by Hardness and Total Alkalinity.

The calibration of this method was done using water with the following concentration:

Ca-Hardness: 200 mg/l CaCO

3

Total Alkalinity: 120 mg/l CaCO

3

Reagent

PHMB PHOTOMETER


Tablet / 100

Order-No.

516100BT

PM620_6c 02/2021

87

1.1 Methods

3 1

prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST

Countdown

10:00

9

Phosphate, ortho LR with Tablet

0.05 – 4 mg/l PO

4

1. Fill a clean vial (24 mm ø) with 10 ml of the water sample , close tightly with the cap.

2. Place the vial in the sample chamber making sure that the marks aligned.

3. Press key.




7. Close the vial tightly with the cap and swirl gently several times until the tablet is dissolved.

8. Place the vial in the sample chamber making sure that the marks aligned.

9. Press key.



The result is shown in the display as ortho-Phosphate.

88 PM620_6c 02/2021

1.1 Methods

Notes

1. Only ortho-Phosphate ions PO

4

3- react.


3. The test sample should have a pH-value between 6 and 7.

4. Interferences:

Higher concentrations of Cu, Ni, Cr (III), V (V) and W (VI) interfere due to their colour.

Silicates do not interfere (masked by Citric acid in the tablets).

5. Conversion: mg/l P = mg/l PO mg/l P

2

O

5

4

x 0.33

= mg/l PO

4

x 0.75

6. PO

4

P

P

2

O

5

Reagent

Set

PHOSPHATE No. 1 / No. 2 LR

PHOSPHATE No. 1 LR

PHOSPHATE No. 2 LR



517651BT

Tablet / 100

Tablet / 100

513040BT

513050BT

PM620_6c 02/2021

89

1.1 Methods

3 2 9 pH value LR 5.2 – 6.8 with Tablet

prepare Zero

press ZERO



3. Press key.


Zero accepted

prepare Test

press TEST tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod.



8. Press key.

The result is shown in the display as pH-value.

90 PM620_6c 02/2021

1.1 Methods

Notes:

1. For photometric determination of pH values only use BROMOCRESOLPURPLE tablets in black printed foil pack and marked with PHOTOMETER.

2. pH values below 5.2 and above 6.8 can produce results inside the measuring range.

A plausibility test (pH-meter) is recommended.

3. The accuracy of the colorimetric determination of pH-values depends on various boundary conditions (buffer capacity of the sample, salt contents etc.).

4. Salt error

Correction of test results (average values) for samples with salt contents of:

Indicator Salt content

Bromcresolpurple 1 molar

– 0.26

2 molar

– 0.33

3 molar

– 0.31

The values of Parson and Douglas (1926) are based on the use of Clark and Lubs buffers.

1 Mol NaCl = 58.4 g/l = 5.8 %

Reagent

BROMOCRESOLPURPLE PHOTOMETER


Tablet / 100 515700BT

PM620_6c 02/2021

91

1.1 Methods

3 3 0 pH value 6.5 – 8.4 with Tablet



prepare Zero

press ZERO

Zero accepted

prepare Test

press TEST


3. Press ZERO key.





marks are aligned.

8. Press TEST key.


92 PM620_6c 02/2021

1.1 Methods

Notes:

1. For photometric determination of pH-values only use PHENOL RED tablets in black printed foil pack and marked with PHOTOMETER.

2. Water samples with low values of Alkalinity-m (below 35 mg/l CaCO

3 pH readings.

) may give wrong

3. pH-values below 6.5 and above 8.4 can produce results inside the measuring range.


4. Salt error

For salt concentrations below 2 g/l no significant error, due to the salt concentration of the reagent tablet, is expected. For higher salt concentrations the measurement values have to be adjusted as follows:

Salt content 30 g/l (seawater) 60 g/l 120 g/l 180 g/l

Correction - 0,15 1)

1) according to Kolthoff (1922)

2) according to Parson und Douglas (1926)

- 0,21 2) - 0,26 2) - 0,29 2)

Reagent

PHENOL RED PHOTOMETER


Tablet / 100

Order-No.

511770BT

PM620_6c 02/2021

93

1.1 Methods

3 3 1 pH value 6.5 – 8.4 with Liquid Reagent

prepare Zero

press ZERO




marks are aligned.

3. Press ZERO key.



6 drops of PHENOL RED solution



Zero accepted

prepare TEST

press Test

8. Press TEST key.


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1.1 Methods

Notes:

1. When testing chlorinated water the residual chlorine contents can influence the colour reaction of the liquid reagent. This can be avoided (without interfering with the pH measurement) by adding a small crystal of Sodiumthiosulfate (Na

2

S

2

O

3

· 5 H

2

Thiosulfate.

O) to the sample before adding the PHENOL RED solution. PHENOL RED tablets already contain

2. Due to differing drop sizes results can show a discrepancy in accuracy by comparison with tablets. This can be minimised by using a pipette (0.18 ml PHENOL RED solution is equivalent to 6 drops).

3. After use replace the bottle cap securely.

4. Store the reagent in a cool, dry place ideally between 6°C and 10°C.

5. Salt error

For higher salt concentrations the measurement values have to be adjusted as follows:

Salt content 30 g/l (seawater) 60 g/l 120 g/l 180 g/l

Correction - 0,15 1)

1) according to Kolthoff (1922)

2) according to Parson und Douglas (1926)

- 0,21 2) - 0,26 2) - 0,29 2)

Reagent

PHENOL RED solution



Order-No.

471040

PM620_6c 02/2021

95

1.1 Methods

3 3 2 pH value HR 8.0 – 9.6 with Tablet

prepare Zero

press ZERO

Zero accepted

prepare TEST

press Test



3. Press key.





8. Press key.


96 PM620_6c 02/2021

1.1 Methods

Notes:

1. For photometric determination of pH values only use THYMOLBLUE tablets in black printed foil pack and marked with PHOTOMETER.

2. pH values below 8.0 and above 9.6 can produce results inside the measuring range.


3. The accuracy of the colorimetric determination of pH values depends on various boundary conditions (buffer capacity of the sample, salt contents etc.).

4. Salt error

Correction of test results (average values) for samples with salt contents of:

Indicator Salt content

Thymolblue 1 molar

– 0.22

2 molar

– 0.29

3 molar

– 0.34

The values of Parson and Douglas (1926) are based on the use of Clark and Lubs buffers.

1 Mol NaCl = 58.4 g/l = 5.8 %

Reagent

THYMOLBLUE PHOTOMETER


Tablet / 100 515710

PM620_6c 02/2021

97

1.1 Methods

2 1 2

Sodium hypochlorite (Soda bleaching lye) with Tablet

0.2 – 16 % w/w NaOCl

prepare Zero

press ZERO

Preparation:

1. Fill a 5 ml plastic syringe with the test solution, ensuring that all air bubbles are expelled. Transfer the 5 ml test solution slowly into a 100 ml beaker and dilute to the

100 ml mark with chlorine-free water. Mix thoroughly.

2. Fill a 5 ml plastic syringe with the diluted test solution

(step 1) to the 1 ml mark, ensuring that all air bubbles are expelled. Transfer the 1 ml test solution slowly into a 100 ml beaker and dilute to the 100 ml mark with chlorine-free water. Mix thoroughly.

Performing test procedure:

1. Fill a clean vial (24 mm Ø) with 10 ml of the prepared water sample , close tightly with the cap.


3. Press key.





98 PM620_6c 02/2021

1.1 Methods

Zero accepted

prepare Test

press TEST


9. Press key.

The result is shown in the display in % w/w as available chlorine present in the original sample of Sodium hypochlorite.

Notes:

1. Please pay attention when handling sodium hypochlorite. The material has a very strong alkalinity and can cause corrosion. Contact with eyes, skin and clothes etc.has to be avoided. Refer to the detailed information the producer supplied with the product.


3. This method provides a fast and simple test. The test can be performed on site but the result will not be as precise as a laboratory method.

4. By strictly following the test procedure, an accuracy of +/- 1 weight % can be achieved.

Reagent

Set ACIDIFYING GP /

CHLORINE HR (KI)

CHLORINE HR (KI)

ACIDIFYING GP



Tablet / 100

Tablet / 100

Order-No.

517721BT

513000BT

515480BT

PM620_6c 02/2021

99

1.1 Methods

3 5 5

Sulfate with Tablet

5 – 100 mg/l SO

4


prepare Zero

press ZERO


3. Press key.





Zero accepted

prepare Test

press TEST

Countdown

2:00

8. Press key.



The result is shown in the display in mg/l Sulfate.

100 PM620_6c 02/2021

1.1 Methods

Notes:

1. If Sulfate is present a cloudy solution will appear.

Reagent

SULFATE T


Tablet / 100

Order-No.

515450BT

PM620_6c 02/2021

101

1.1 Methods

3 6 0

Sulfate with Vario Powder Pack

5 – 100 mg/l SO

4




prepare Zero

press ZERO

1 2

3 4

3. Press ZERO key.


5. Add the contents of one VARIO Sulpha 4/ F10 Powder

Pack straight from the foil to the water sample.



Zero accepted

prepare Test

press TEST

Countdown

5:00

8. Press TEST key.



The result is shown in the display in mg/l Sulfate.

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1.1 Methods

Note:

1. If Sulfate ions are present a cloudy solution will appear.

Reagent

VARIO Sulpha 4 / F10


Powder Pack / 100

Order-No.

532160

PM620_6c 02/2021

103

1.1 Methods

3 9 0

Urea with Tablet and Liquid Reagent

0.1 – 2.5 mg/l (NH

2

)

2

CO / mg/l Urea

prepare Zero

press ZERO

Countdown

5:00

start:



3. Press ZERO key.


5. In the presence of free Chlorine (HOCl), add one UREA

PRETREAT tablet straight from the foil and crush the tablet using a clean stirring rod (Note 10).


7. Add 2 drops of Urea reagent 1 to the water sample

(Note 9).


9. Add 1 drop of Urea Reagent 2 (Urease) to the same water sample (Note 9).


11. Press [ ] key.



12. Add one AMMONIA No. 1 tablet straight from the foil to the prepared water sample and mix to dissolve with a clean stirring rod.

13. Add one AMMONIA No. 2 tablet straight from the foil to the same water sample and mix to dissolve with a clean stirring rod.

104 PM620_6c 02/2021

1.1 Methods


Zero accepted

prepare Test

press TEST

Countdown

10:00


marks are aligned.

16. Press TEST

Wait for a

key. reaction period of 10 minutes .


The result is shown in the display in mg/l Urea.

Notes:

1. The sample temperature should be between 20°C and 30°C.

2. Carry out the test at the latest one hour after sample taking.

3. Concentrations above 2 mg/l Urea can produce results inside the measuring range.

In this case, the water sample should be diluted with Urea free water and remeasured.


5. The AMMONIA No. 1 tablet will only dissolve completely after the AMMONIA No. 2 tablet has been added.

6. Do not store reagent 1 (Urease) below 10°C; granulation is possible.

Store reagent 2 (Urease) in the refrigerator at a temperature of 4°C to 8°C.

7. Ammonia and chloramines are also measured during urea measurement.

8. Before analysing seawater samples, a measuring spoon of Ammonia Conditioning

Powder must be added to the sample and swirled to dissolve before AMMONIA No. 1 tablet is added.

9. Fill the vial with drops of the same size by holding the bottle vertically and squeeze slowly.

10. One UREA PRETREAT tablet compensates for the interference of free Chlorine up to 2 mg/l (two tablets up to 4 mg/l, three tablets up to 6 mg/l).

Reagent

UREA PRETREAT

UREA Reagent 1

UREA Reagent 2

Set

AMMONIA No. 1 / No. 2

AMMONIA No. 1

AMMONIA No. 2


Tablet / 100




Tablet / 100

Tablet / 100

Order-No.

516110BT

459300

459400

517611BT

512580BT

512590BT

PM620_6c 02/2021

105

1.2 Important notes

1.2.1 Correct use of reagents

The reagents must be added in the correct sequence.

Tablet reagents:

The tablet reagents should be added to the water sample straight from the foil without touching them with the fingers.

Liquid reagents:

Add drops of the same size to the water sample by holding the bottle vertically and squeezing slowly.

After use replace the bottle caps securely noting the colour coding.

Note recommendation for storage (e.g. cool and dry).

Powder Packs:

1 2

VARIO Chlorine DPD / F10

3 4

free total

blue color marking

106 PM620_6c 02/2021

1.2.2 Cleaning of vials and accessories for analysis

Vials, caps and stirring rods should be cleaned thoroughly after each analysis to prevent interferences.

Procedure:

Clean vials and accessories after each analysis as soon as possible.

a. Clean vials and accessories with laboratory detergent

(e.g. Extran ® MA 02 (neutral, phosphatic), Extran ® MA 03 (alkaline, phosphate-free) from Merck KGaA).

b. Rinse thoroughly with tap water.

c. On demand (see Notes) perform special cleaning as required, e.g.: rinse with diluted

Hydrochloric acid solution.

d. Rinse thoroughly with deionised water.

1.2.3 Guidelines for photometric measurements

1. Vials, caps and stirring rods should be cleaned thoroughly after each analysis to prevent interferences. Even minor reagent residues can cause errors in the test result.

2. The outside of the vial must be clean and dry before starting the analysis. Clean the outside of the vials with a towel. Fingerprints or other marks will be removed.

3. If there is no defined vial for the blank, the zeroing and the test must be carried out with the same vial as there may be slight differences in optical performance between vials.

4. The vials must be positioned in the sample chamber for zeroing and test with the mark on the vial aligned with the mark on the instrument.

Correct position of the vial (Ø 24 mm):

PM620_6c 02/2021

107

5. Always perform zeroing and test with closed vial cap. Only use cap with sealing ring.

6. Bubbles on the inside wall of the vial lead to incorrect measurements. To prevent this, remove the bubbles by swirling the vial before performing the test.

7. Avoid spillage of water in the sample chamber. If water should leak into the instrument housing, it can destroy electronic components and cause corrosion.

8. Contamination of the lens in the sample chamber can result in errors. Check at regular intervals and – if necessary – clean the light entry surfaces of the sample chamber using a moist cloth or cotton buds.

9. Large temperature differences between the instrument and the environment can lead to errors – e.g. due to the formation of condensation in the area of the lens or on the vial.

10. To avoid errors caused by stray light do not use the instrument in bright sunlight.

Correct filling of the vial:

108 PM620_6c 02/2021

1.2.4 Sample dilution techniques

Proceed as follows for accurate dilutions:

Pipette the water sample (see table) into a 100 ml volumetric flask and fill up to 100 ml mark with deionised water. Swirl to mix the contents.

Water sample

[ml]

1

2

5

10

25

50

Multiplication factor

100

50

20

10

4

2

Pipette the required volume of the diluted sample into the vial and proceed as described in the test methods.

Caution:

1. Dilution decreases accuracy.

2. Do not dilute water samples for measurement of pH-values. This will lead to incorrect test results. If “Overrange” is displayed use another instrument (e.g. pH-meter).

1.2.5 Correcting for volume additions

If a larger volume of acid or base is used to pre-adjust the pH-value, a volume correction of the displayed result is necessary.

Example:

For adjusting the pH-value of a 100 ml water sample 5 ml of acid had to be added. The corresponding displayed result is 10 mg/l.

Total volume = 100 ml + 5 ml = 105 ml

Correction factor = 105 ml / 100 ml = 1.05

Corrected result = 10 mg/l x 1.05 = 10.5 mg/l

PM620_6c 02/2021

109

110 PM620_6c 02/2021

PM620_6c 02/2021

Part 2

Instrument Manual

111

2.1 Operation

2.1.1 Set up

Before working with the photometer insert the batteries (delivery contents). See chapter 2.1.2

Saving data – Important Notes, 2.1.3 Replacement of batteries.

Before using the photometer perform the following settings in the Mode-Menu:

• MODE 10: select language

• MODE 12: set date and time

• MODE 34: perform „Delete data“

• MODE 69: perform “User m. init” to initialise the userpolynomial system

See chapter 2.4 Photometer settings.

2.1.2 Saving data – Important Notes

The batteries save data (stored results and photometer setting).

During battery change the data in the photometer is saved for 2 minutes. If the change time exceeds 2 minutes all stored data and settings are lost.

Recommendation: for replacement a screwdriver and new batteries must be available.

2.1.3 Replacement of batteries

See chapter 2.1.2 "Saving data - important notes" before replacing batteries.

1. Switch the instrument off.

2. If necessary remove vial from the sample chamber.

3. Place the instrument upside down on a clean and even surface.

4. Unscrew the four screws (A) of the battery compartment cover (B).

5. Lift off battery compartment cover at the notch (C).

6. Remove old batteries (D).

7. Place 4 new batteries.

Ensuring the correct polarity!

8. Replace the battery compartment cover.

Check the seal ring (E) of the notch to make sure if is tight-fitting

9. Tighten the screws carefully.

CAUTION

Dispose of used batteries in accordance with all federal, state and local regulations.

112 PM620_6c 02/2021

2.1.4 Instrument (explosion drawing):

(A) screws

(B) battery compartment cover

(C) notch

(D) batteries: 4 batteries (AA/LR6)

(E) seal ring

(F) instrument back

(B) battery compartment cover

(E) seal ring

AA

/LR

6

AA/LR6

AA

/LR

6

R6

AA/L

(F) instrument back

(A) screws

(C) notch

(D) batteries

CAUTION:

To ensure that the instrument is water proof:

• seal ring (E) must be in position

• battery compartment cover (B) must be fixed with the four screws

PM620_6c 02/2021

113

114 PM620_6c 02/2021

2.2 Overview of function keys

2.2.1 Overview

ON

OFF

Shift

Switching the photometer on or off

Press shift key to achieve figures key 0-9.

Keep the shift key depressed and press desired figures key. e.g.: [Shift] + [1][1]

7

Esc

Returning to selection of methods or previous menu

F1

F2

F3

8

4

Mode

2 5

3

Store

9

Zero

6

Test

1

.

0

Function key: description in the text if key available



Confirming

Menu of photometer settings and further functions

Moving the cursor up or down

Storing of displayed test result

Performing Zero

Performing Test

Displaying date and time / user countdown

Decimal point

PM620_6c 02/2021

115

2.2.2 Displaying time and date:

Press [“clock”] key.

19:30:22 2013-06-15

Esc

The display shows:

After 15 seconds the photometer reverts to the previous display automatically or press [ ] key or [ESC].

2.2.3 User countdown

With this function the operator is able to define his own countdown.


19.30.20 2013-06-15 The display shows time and date:


Countdown

mm : ss

99 : 99

The display shows:

Either press [ ] key to accept the last used user countdown.

0 2 0 0 or press any number key to start entering a new value

The entry comprises two digits each.

Enter minutes and seconds, e.g.: 2 minutes, 0 seconds = [Shift] + [0][2][0][0].

Confirm with [ ] key.

The display shows:

Start countdown with [ ] key.

Countdown

02:00

start:

After countdown has finished the photometer reverts to the previous display automatically.

2.2.4

Display backlight

Shift F1

Press the [Shift] + [F1] key to turn the display backlight on or off. The backlight is switched off automatically during the measurement.

116 PM620_6c 02/2021

2.3 Operation mode

ON

OFF

Switch the photometer on by pressing the [ON/OFF] key.

selftest ...

The photometer performs an electronic self-test.

2.3.1 Automatic switch off

The instrument switches off automatically after 20 minutes. This is indicated 30 seconds before by a beeper. Press any key to avoid the instrument switching off.

As long as the instrument is working (for example countdown or printing) the automatic switch off is inactive.

2.3.2 Selecting a method

>> 20 Acid demand T

30 Alkalinity-tot T

31 Alkal.-tot HR T

The display shows a selection:

There are two possibilities to select the required method:

Shift

8 0 a) enter method-number directly e.g.: [Shift] + [8] [0] to select Bromine b) press arrow key [ ] or [ ] to select the required method from the displayed list.


2.3.2.1 Method Information (F1)

Use [F1] key to switch between the compact and the detailed list for method selection.

Example:

100 Chlorine

0.02-6 mg/l Cl

Line 1: Method number, Method name

Line

2

Tablet

24 mm

Line 3: Kind of reagent

Line

DPD No 1

DPD No 3

Line 5-7: Used reagent

PM620_6c 02/2021

117

2.3.2.2 Chemical Species Information

Pressing the [F2] key the display shows a list with available chemical species and corresponding ranges. Changing chemical species see chapter 2.3.7 page 120.

319 Phosphate LR T

0.05-4 mg/l PO

0.02-1.3 mg/l P

4

0.04-3 mg/l P

2

O

5

Line 1: Method number, Method name

Line 2: Range with chemical species 1



F1

F2

Chemical Species

Information

Information

F2

F2

Method List

F1

F1

Methods

Information

Method

2.3.3 Differentiation

Chlorine


Differentiation is possible in some methods (e.g. Chlorine).

The photometer then requires the type of determination.

Press arrow key [ ] or [ ] to select the required determination.


2.3.4 Performing Zero

prepare Zero

press ZERO

The display shows:

Prepare a clean vial as described in “Method“ and place the vial in the sample chamber making sure that the marks are aligned.

Zero

Press [ZERO] key.

Zero accepted

prepare Test

press TEST

The display shows:

118 PM620_6c 02/2021

2.3.5 Performing Tests

When zero calibration is complete, remove the vial from the sample chamber and perform the tests as described under “Method“.

When the results have been displayed:

- with some methods you can change between different chemical species

- you can store and/or print out the results

- perform further analysis with the same zero

- select a new method

2.3.6 Ensuring reaction periods (countdown)

To ensure compliance with reaction periods a time delay is incorporated: the countdown.

There are two kinds of countdowns:

Countdown

2:00

start:

• Press [ ] key.

Prepare water sample, start countdown with [ ] key and

proceed as described in the mode description.

The vial must not be placed in the sample chamber.

Test

Countdown

1:59

• Press [TEST] key.

Prepare the water sample as described in the method

description and place the vial in the sample chamber.

The display shows the countdown by pressing the [TEST]

key and the countdown is started automatically. After

the reaction period is finished the measurement starts

automatically.

Notes:

1. It is possible to finish the working countdown by pressing the [ ] key. Reading starts immediately. In this case the operator is responsible for ensuring the necessary reaction period.

Non-compliance with reaction periods leads to incorrect test results.

2. The time remaining is displayed continuously.

The beeper indicates the last 10 seconds.

PM620_6c 02/2021

119

2.3.7 Changing chemical species

For some methods there is a possibility to change the chemical species of the test result.

If the test result is displayed press arrow key [ ] or [ ].

Example:

319 Phosphate LR T -----[ ]----> 319 Phosphate LR T <---- [ ] ----- 319 Phosphate LR T

0.05-4 mg/l PO

1.00 mg/l PO

4

4

<---- [ ] -----

0.02-1.3 mg/l P

0.33 mg/l P

------ [ ] ---->

0.04-3 mg/l P

2

O

5

0.75 mg/l P

2

O

5

If the species of a test result is changed the displayed range is adjusted automatically. For an already stored result it is not possible to change the chemical species. The last displayed chemical species is kept by the instrument and will be displayed if this method is used the next time. If there is the possibility to change the chemical species for a method it is described in the manual. The arrows indicate the possible chemical species and are printed below the notes of the method:

PO

4

P

P

2

O

5

2.3.8 Storing results

Press [STORE] key while the test result is displayed.

Store

Code-No.:

_ _ _ _ _ _

The display shows:

Shift

1 0 0 0 0 0

• We advise you to enter a numeric code (up to 6 places).

(A Code No. can contain references to the operator or

the sampling location.)

After entering confirm with [ ] key.

• If a code number is not necessary confirm by pressing

[ ] directly. (The assignment for the Code No. is then 0

automatically.)

The entire data set is stored with date, time, Code No., method and test result.

Stored!

The display shows:

The test result is then shown again.

120 PM620_6c 02/2021

Storage: 900

free records left

Storage: only 29


Note:

The display shows the number of free data sets.

If there are less than 30 data sets free the display shows:

Clear the memory as soon as possible (see “Deleting stored results”). If memory capacity is used up it is impossible to save additional test results.

2.3.9 Printing results

(Infra-Red Interface Module) (optional)

If the IRiM (see chapter 2.5) is switched on and the printer is connected, it is possible to print out the test results (without saving it beforehand).

F3

Press [F3] key.

The entire data set is printed with date, time, Code No., method and test result. Printing example:

100 Chlorine T

0.02-6 mg/l Cl

2

Profi-Mode: no

2013-07-01 14:53:09

Test No.: 1

Code-Nr.: 007

4.80 mg/l Cl

2

The test No. is an internal number that is set automatically if a test result is stored. It appears only on the print out.

2.3.10 Perform additional measurements

To perform additional tests using the same method:

Test

Zero accepted

prepare Test

press TEST

Test

Zero

• Press [TEST] key

The display shows:

Confirm with [TEST] key

or

• Press [ZERO] key to perform a new zero calibration.

prepare Zero

press ZERO

The display shows:

PM620_6c 02/2021

121

2.3.11 Selecting a new method

Press [ESC] key to return to method selection.

Esc

1 6 0 Or enter the required method number directly, e.g. [Shift] + [1][6][0] for CyA-TEST (Cyanuric acid).


2.3.12 Measure absorbance

Range: –2600 mAbs to +2600 mAbs

Method-No.

910

920

940

Title mAbs 530 nm mAbs 560 nm mAbs 610 nm

Select the desired wavelength from the method list or by entering the corresponding method number directly.

910 mAbs 530 nm

-2600 mAbs - + 2600 mAbs

prepare Zero

press ZERO

The display shows e.g.:

Always carry out zeroing using a filled (e.g. deionised water) vial.

Zero accepted

prepare Test

press TEST

The display shows:

Carry out measurement of the sample.

500 mAbs The display shows e.g.:

TIP: To ensure complete reaction times the user countdown may be helpful (chapter 2.2.3, page 116).

122 PM620_6c 02/2021

2.4 Photometer settings: Table of Mode Functions

MODE-Function

Calibration

Clear calibration

Clock

Countdown

Delete data

Key beep

Langelier

No. Description

40 Special method calibration

46 Deleting user calibration

12 Setting date and time

13 Switching the countdown on/off to ensure reaction times

34 Deleting all stored results

11 Switching the acoustic signal on/off to indicate keypressing

70 Calculation of Langelier saturation Index

(Water Balance)

10 Selecting language

80 Setting the display contrast

81 Setting the display brightness

60 User method list, adaption

137

125

156

Language

LCD contrast

LCD brightness

Method list

M list all on

M list all off

OTZ

Print

Print, code no.

61 User method list, switching on all methods

62 User method list, switching off all methods

55 One Time Zero (OTZ)

20 Printing all stored results

22 Print only results of a selected Code No. range

Print, date

Print, method

21 Print only results of a selected time period

23 Print only results of one selected method

Printing parameters 29 Setting of printing options

Profi-Mode 50 Switching the detailed operator instructions on/off

Signal beep 14 Switching the acoustic signal on/off to indicate end of reading

Storage

Stor., code

Stor., date

Stor., method

System info

30 Displaying all stored results

32 Displaying only results of a selected Code No. range

31 Displaying only results of a selected time period

33 Displaying only results of one selected method

91 Information about the instrument e.g. current software version

133

135

134

136

159

129

131

132

144

127

147

147

145

128

130

124

158

158

146

Page

142

143

125

126

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123

MODE-Function

Temperature

User calibration

User concentration

User polynoms

User methods clear

User methods print

User methods init

No. Description

71 Selection of °C or °F for Langelier Mode 70

45 Storage of user calibration

64 Entering the data necessary to run a user concentration method

65 Entering the data necessary to run a user polynomial 150

66 Delete all data of a user polynomial or of a concentration method

153

154 67 Print out all data stored with mode 64

(concentration) or mode 65 (polynomial)

69 Initialise the user method system

(polynomial and concentration)

Page

157

142

148

155

The selected settings are kept by the photometer even when switched off. To change photometer settings a new setting is required.

2.4.1 blank because of technical requirements

2.4.2 Instrument basic settings 1

Selecting a language

1 0

Mode

Press [MODE], [Shift] + [1][0] keys.


<Language>

Deutsch

>> English

Francais

The display shows:

Press arrow key [ ] or [ ] to select the required language from the displayed list.


124 PM620_6c 02/2021

Key beep

1

Mode

1



The display shows: <Key-Beep>

ON: 1 OFF: 0

0

1

• Press [Shift] + [0] keys to switch the key beep off.

• Press [Shift] + [1] keys to switch the key beep on.


Note:

1. In the case of methods with reaction periods, an acoustic signal still sounds during the last

10 seconds of the countdown even if the key beep is switched off.

Setting date and time

1 2

Mode



<clock>

yy-mm-dd

_ _-_ _-_ _

yy-mm-dd

13-05-14

yy-mm-dd

13-05-14

The display shows: hh:mm

_ _:_ _

The entry comprises two digits each.

hh:mm

_ _:_ _

Enter year, month and day, e.g.: 14. May 2013 = [Shift] + [1][3][0][5][1][4] hh:mm

15:07

Enter hours and minutes e.g.: 3.07 p.m. = [Shift] + [1][5][0][7]


Note:

1. While confirming date and time with [ ] key the seconds are adjusted to zero automatically.

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125

Countdown (Ensuring reaction periods)

Some methods require a reaction period. This reaction period is incorporated in the method as standard with the countdown function.

It is possible to switch the countdown off for all methods:

1 3

Mode



<Countdown>

ON: 1 OFF: 0

0

1

The display shows:

• Press [Shift] + [0] keys to switch the countdown off.

• Press [Shift] + [1] keys to switch the countdown on.


Notes:

1. It is possible to interrupt the working countdown by pressing the [ ] key (application e.g.

The “user countdown” is also available if the countdown is switched off.

2. If the countdown function is switched off, the operator is responsible for ensuring the necessary reaction period.

Non-compliance with reaction periods leads to incorrect test results.

126 PM620_6c 02/2021

Signal beep

Performing a zero or a measurement takes 8 seconds. The photometer indicates the end of zeroing or measuring by a short beep.

1 4

Mode



<Signal-Beep>

ON: 1 OFF: 0

0

The display shows:

1

• Press [Shift] +[0] keys to switch the signal beep off.

• Press [Shift] + [1] keys to switch the signal beep on.


Note:

1. In the case of methods with reaction periods, an acoustic signal still sounds during the last

10 seconds of the countdown even if the key beep is switched off.

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127

2.4.3 Printing of stored results

Printing all results

2 0

Mode Press [MODE], [Shift] + [2][0] keys.

<Print>

Print all Data

Start: cancel: ESC


The display shows:

Press [ ] key for printing out all stored test results.

Test No.: The display shows e.g.:

After printing the photometer goes back to <Mode-Menu> automatically.

Note:

1. It is possible to cancel the entry by [ESC].

2. All stored data are printed out.

See chapter 2.5.1 Data Printing.

128 PM620_6c 02/2021

Printing results of a selected time period

Mode

2 1



<Print>

sorted: date

from yy-mm-dd

__-__-__

to yy-mm-dd

__-__-__

The display shows:

Enter year, month and day for the first day of the required period, e.g.: 14 May 2013 = [Shift] + [1][3][0][5][1][4]


The display shows:

Enter year, month and day for the last day of the required period, e.g.: 19 May 2013 = [Shift] + [1][3][0][5][1][9]


from 2013-05-14

to 2013-05-19

Start:

cancel: ESC

The display shows:

Press [ ] key and all stored results in the selected date range are printed.

After printing the photometer goes back to mode menu automatically.

Note:


2. If you want to print only results of one day enter the same date twice to determine the period.

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129

Printing results of a selected Code No. range

2 2

Mode Press [MODE], [Shift] + [2][2] keys.


<Print>

sorted: Code-No.

from _ _ _ _ _ _

to _ _ _ _ _ _

from 000001

to 000010

Start:

cancel: ESC

The display shows:

Enter numeric code number (up to 6 places) for the first required Code No., e.g.: [Shift] + [1].


The display shows:

Enter numeric code number (up to 6 places) for the last required Code No., e.g.: [Shift] + [1][0].


The display shows:

Press [ ] key and all stored results in the selected code number range are printed.


Note:


2. If you want to print only results of one code number enter the same code number twice.

3. If you want to print all results without code no. (code no. is 0) enter Zero [0] twice.

130 PM620_6c 02/2021

Printing results of one selected method

Mode

2 3



<Print>

>> 20 Acid demand

30 Alkalinity-tot

40 Aluminium T

The display shows:

Select the required method from the displayed list or enter the method-number directly.


In case of differentiated methods select the required kind of determination and confirm with [ ] key.

The display shows: <Print>

method


Start:

cancel: ESC

Press [ ] key and all stored results of the selected method are printed.


Note:


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131

Printing Parameter

2 9

Mode



The display shows: <printing parameter>

2: Baud rate

cancel: ESC

<Baud rate>

is: 19200

select: [ ] [ ]

save:

cancel: ESC

Press [Shift] + [2] keys to select ”Baud rate”.

The display shows:

Esc

Press arrow key [ ] or [ ] to select the required baud rate.

(1200, 2400, 4800, 9600, 14400, 19200)


End with [ESC] key.

Back to Mode Menu with [ESC] key.

Back to method selection with [ESC] key.

132 PM620_6c 02/2021

2.4.4 Recall / delete stored results

Recall all stored results

3 0

Mode



<Storage>

display all data


print: F3

print all: F2

no data

The display shows:

The stored data sets are displayed in chronological order, starting with the latest stored test result. Press [ ] key and all stored results are displayed.

• Press [F3] key to print the displayed result.

• Press [F2] key to print all results.

• End with [ESC].

• Press arrow key [ ] to display the following test result.

• Press arrow key [ ] to display the previous test result.

If there are no test results in memory the display shows:

PM620_6c 02/2021

133

Recall results of a selected time period

Mode

3 1



<Storage>

sorted: date

from yy-mm-dd

__-__-__

The display shows:

Enter year, month and day for the first day of the required period, e.g.: 14 May 2013 = [Shift] + [1][3][0][5][1][4]

to yy-mm-dd

__-__-__


The display shows:

Enter year, month and day for the last day of the required period, e.g.: 19 May 2013 = [Shift] +[1][3][0][5][1][9]


from 2013-05-14

to 2013-05-19


print: F3

print all: F2

The display shows:

[ ] key and all stored results in the selected date range are displayed.


• Press [F2] key to print all selected results.

• End with [ESC].

Note:


2. If you want to recall only results of one day enter the same date twice to determine the time period.

134 PM620_6c 02/2021

Recall results of a selected Code No. range

Mode

3 2



<Storage>

sorted: Code-No.

from _ _ _ _ _ _

The display shows:

Enter numeric code number (up to 6 places) for the first required Code No., e.g.: [Shift] + [1].

to _ _ _ _ _ _


The display shows:

Enter numeric code number (up to 6 places) for the last required Code No., e.g.: [Shift] + [1][0].


from 000001

to 000010


print: F3

print all: F2

The display shows:

[ ] key and all stored results in the selected

Code No. range are displayed.



• End with [ESC].

Note:


2. If you want to recall only results of one code number enter the same code number twice.

3. If you want to recall all results without code no. (code no. is 0) enter Zero [0] twice.

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135

Recall results of one selected method

Mode

3 3



<Storage>

>> 20 Acid demand


40 Aluminium T

The display shows:

Select the required method from the displayed list or enter the method number directly.


In case of differentiated methods select the required kind of determination and confirm with [ ] key.

<Storage>

method



print: F3

print all: F2

The display shows: method are displayed.



• End with [ESC].

136 PM620_6c 02/2021

Delete stored results

3 4

Mode



<Delete data>

Delete all data?

YES : 1 NO : 0

0

The display shows:

1

• Press [Shift] + [0] keys to retain the data sets in memory.

• After pressing keys [Shift] + [1] the following acknowledgment is displayed:

<Delete data>

Delete data

Do not delete: ESC

Press [ ] key to delete.

ATTENTION:

All stored test results are deleted or cancel without deleting data by pressing [ESC] key.

Note:

1. All stored test results are deleted.

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137

2.4.5 Calibration

Calcium Hardness Method 191 –

Calibration of a method blank

4 0

Mode

Press [MODE], [Shift] + [4] [0] keys.


<Calibration>

1: M191 Ca-Hardness 2

2: M191 0 Jus. Reset

3: M170 Fluoride L

1

The display shows:

Press [Shift] + [1] keys.

<Calibration>

M191 Calcium Hardness 2T

prepare ZERO

press ZERO

The display shows:

1. Fill a clean vial (24 mm Ø) with exactly 10 ml of deionised water, close tightly with the cap.


Zero

3. Press key.


5. Pipette 100 ml of water free of calcium to an appropriate beaker (note 2, 3).

6. Add 10 CALCIO H No. 1 tablets straight from the foil to the 100 ml of water, crush the tablets using a clean stirring rod and dissolve the tablets completely.

7. Add straight from the foil to the same water, crush the tablets using a clean stirring rod and dissolve the tablets completely.


Zero accepted

Countdown

2:00

start:

138 PM620_6c 02/2021

prepare TEST

press TEST

stored

After the reaction period is finished proceed as

follows:

9. Rinse the vial (24 mm Ø) with the coloured sample from the beaker and fill with 10 ml of the sample.

10. Press TEST key.

The batch related method blank is saved.

Press [ ] key, to go back to mode menu.

Notes:

1. If a new batch of CALCIO tablets is used a calibration of the method blank has to be performed to optimise the results.

2. Deionised or tap water.

3. If no water free of Calcium is available these ions can be masked by using EDTA.

Preparation: Add 50 mg (a spatula-tipful) EDTA to 100 ml water and dissolve.

4. To achieve the most accurate method blank it is important to adhere exactly to the sample volume of 100 ml.

Calcium Hardness Method 191 –

Reset method blank to factory calibration

4 0

Mode

Press [MODE], [Shift] + [4] [0] keys.


<Calibration>

1: M191 Ca-Hardness 2

2: M191 0 Jus. Reset

3: M170 Fluoride L

2

The display shows:

Press [Shift] + [2] keys.

<Calibration>

M191 Calcium Hardness 2T

Reset ?

YES: 1, NO: 0

0

The display shows:

1

Press [Shift] + [0] keys to keep the method blank.

Press [Shift] + [1] keys to erase the method blank and set the value back to factory calibration.

The instrument goes back to mode menu automatically.

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139

User Calibration

If a test method is user calibrated the method name is displayed inverse.

Procedure:

• Prepare a standard of known concentration and use this standard instead of the sample according to the test procedure.

• It is recommend to use well known standards which are formulated according to DIN EN,

ASTM or other international norms or to use certified standards which are commercially available.

• After measuring this standard solution it is possible to change the displayed results to the required value.

• If a method uses a mathematic equation for the calculation of the result, it is only possible to calibrate the basic tests since all the other tests use the same polynomial.

• The same applies for some test procedures which use a polynomial from another test procedure.

Return to factory calibration:

If the user calibration is deleted the factory calibration is automatically activated.

Table

No. Method Recommended range for user calibration

20

30

31

40

Acid demand 1–3 mmol/l

Alkalinity-total 50–150 mg/l CaCO

3

Alkalinity-total HR T 50–300 mg/l CaCO

3

Aluminium T 0.1–0.2 mg/l Al

Aluminium PP 0.1–0.2 mg/l Al 50

60

80

Ammonia T

Bromine

100 Chlorine T

103 Chlorine HR T

0.3–0.5 mg/l N

Calibration with basic test 100 Chlorine free

0.5–1.5 mg/l Cl

0.5–6 mg/l Cl

101

110

111

120

Chlorine L

Chlorine PP

Chlorine HR PP

Chlorine dioxide

150 Copper T

153 Copper PP


0.5–1 mg/l Cl

2

4–5 mg/l Cl

2


160 CyA-TEST

214 H

2

O

2

HR L

191 Hardness, Calcium

200 Hardness, total T

0.5–1.5 mg/l Cu

0.5–1.5 mg/l Cu

30–60 mg/l CyA

200-300 mg/l H

2

O

2

100–200 mg/l CaCO

3

15–25 mg/l CaCO

3

140 PM620_6c 02/2021

No. Method Recommended range for user calibration

201 Hardness, total HR T Calibration with basic test 200 Hardness, total

215 Iodine Calibration with basic test 100 Chlorine free

220 Iron T

300 Ozone (DPD)

0.3–0.7 mg/l Fe


290 Oxygen, active

329 pH-Value LR

330 pH-Value T

331 pH-Value L


6.0–6.6

7.6–8.0

7.6–8.0

332

70 pH-Value HR

PHMB

319 Phosphate LR T

212 Sodium hypochlorite

360 Sulfate PP

355 Sulfate T

390 Urea

8.6–9.0

15–30 mg/l

1–3 mg/l PO

4

8 %

50 mg/l SO

4

50 mg/l SO

4

1–2 mg/l CH

4

N

2

O

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141

Store user calibration

100 Chlorine T

0.02-6 mg/l Cl2

0.90 mg/l free Cl2

4

Mode

5

Perform the required method as described in the manual using a standard of known concentration instead of the water sample.

If the test result is displayed press [MODE], [Shift] + [4] [5] keys and confirm with [ ] key.

<user calibration>

100 Chlorine T

0.02-6 mg/l Cl2


up: , down:

save:

Jus Factor

saved

100 Chlorine T

0.02-6 mg/l Cl2


The display shows:

Pressing the arrow key [ ] once increases the displayed result.

Pressing the arrow key [ ] once decreases the displayed result.

Press keys till the displayed result corresponds to the value of the standard.

Confirm with [ ] key to store the new calibration factor.

Cancel user calibration by pressing [ESC] key.

The display shows:

Now the method name is displayed inverse and the test result is calculated with the new calibration factor.

142 PM620_6c 02/2021

Delete user calibration

This chapter only applies for methods which can be user calibrated.

100 Chlorine T

0.02-6 mg/l Cl2

Select the required method.

prepare ZERO

press ZERO

Mode

4 6

Instead of zeroing the instrument press [MODE], [Shift] +

[4][6] keys and confirm with [ ] key.

<user calibration>

100 Chlorine T

0.02-6 mg/l Cl2

clear user

calibration?

YES: 1, NO: 0

1

0

The display shows:

Press [Shift] + [1] keys to delete user calibration.

Press [Shift] + [0] keys to keep the valid user calibration.

The instrument goes back to Zero-query automatically.

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2.4.6 Lab function

Reduced operator guidance => “Profi-Mode“

This function may be used for routine analyses with many samples of one method.

The following information is always stored in the methods: a) Method b) Range c) Date and time d) Differentiation of results e) Detailed operator instruction f) Compliance with reaction periods

If the Profi-Mode is active, the photometer provides only a minimum of operator instructions.

The criteria specified above in d, e, f are no longer included.

5 0

Mode

Press [MODE], [Shift] + [5][0] keys in succession.


<Profi-Mode>

ON : 1 OFF : 0

0

The display shows:

1

• Press [Shift] + [0] keys to switch the Profi-Mode off.

• Press [Shift] + [1] keys to switch the Profi-Mode on.

switched off

or

switched on

The display shows:


Note:

1. Storage of test results is possible. When results are stored the display also shows “Profi-

Mode”.

2. The selected settings are kept by the photometer even whein it is switched off. To change photometer setting a new setting is required.

144 PM620_6c 02/2021

One Time Zero (OTZ)

OneTimeZero is available for all methods where Zero is performed in a 24 mm Ø round vial with sample water (see chapter 1.1 Table of Methods).

OneTimeZero can be used for different tests providing the tests are performed with the same sample water and under the same test conditions. When changing the method, it is not necessary to perform a new Zero. The test can be carried out straight away.

When the instrument is first being used for an OTZ compatible method and OneTimeZero is activated, the instrument will request a new Zero with “prepare OT-Zero”. Perform Zero as described in the method. This Zero will be stored and used for all methods with OTZ function until the instrument is switched off.

If necessary, a new Zero can be performed by pressing [Zero] key at any time.

Switching the “OTZ-Function“ on and off:

Mode

5 5



<OneTimeZero>

ON : 1 OFF : 0

0

The display shows:

• Press [Shift] + [0] keys to switch the OTZ off.

1

• Press [Shift] + [1] keys to switch the OTZ on.

The display shows: switched off

or

switched on



Note:

1. The specified accuracy is valid for all test results when Zero is performed for each test

(OneTimeZero function is switched off).

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2.4.7 User operations

User method list

After switching on the instrument a scroll list of all available methods is automatically shown in the display. To shorten this list according to the requirements of the user it is possible to create a user defined scroll list.

The program structure requires that this list must have at least one active (switched on) method. For this reason it is necessary to activate first all required methods and then to switch off the automatically activated one if this method is not required.

User-method list, adaptation

Mode

6 0



<Method list>

selected: •

toggle: F2

save:

cancel: ESC

<Method list>

>> 30 •Alkalinity-tot

40•Aluminium

50•Ammonium

....


F2

>> 30 Alkalinity-tot

F2


The display shows:

Start with [ ] key.

The complete method list is displayed.

Methods with a point [•] behind the method number will be displayed in the method selection list. Methods without a point will not be displayed in the method selection list.

Press key [ ] or [ ] to select the required method from the displayed list.

Switch with [F2] key between “active” [•] and “inactive” [ ].

Select next method, activate or inactivate it and continue.


Cancel without storing by pressing [ESC] key.

Recommendation:

If only a few methods are required it is recommended to perform Mode 62 first, followed by Mode 60.

All user Polynomials (1-25) and Concentrations (1-10) are displayed in the method list, although they are not programmed by the user. Non-programmed user methods can’t be activated!

146 PM620_6c 02/2021

User method list, switch all methods on

This mode function activates all methods. After switching on the instrument a scroll list of all available methods is automatically shown in the display.

6 1

Mode



<Mlist all on>

switch on all

methods

YES: 1, NO: 0

1

The display shows:

0

• Press [Shift] + [1] keys to display all methods in the method selection list.

• Press [Shift] + [0] keys to keep the valid method selection

list.


User method list, switch all methods off

The program structure requires that the method list must have at least one active (switched on) method. For this reason the instrument activates one method automatically.

6 2

Mode



<Mlist all off>

switch off all

methods

YES: 1, NO: 0

1

The display shows:

0

• Press [Shift] + [1] keys to display only one method in the method selection list.

• Press [Shift] + [0] keys to keep the valid method selection

list.


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User Concentration Methods

It is possible to enter and store up to 10 User Concentration Methods.

Therefor you need 2 to 14 standards of known concentration and one blank (deionised water or reagent blank value). The Standards should be measured with increasing concentrations and from the brightest to the darkest colouration.

The measuring range for „Underrange“ and „Overrange“ is defined with –2600 mAbs* and

+2600 mAbs*. After selection of a method the concentration of the lowest and highest used standard is displayed as measuring range. The operation range should be within this range to achieve best results.

*1000 mAbs = 1 Abs = 1 E (displayed)

Entering a User Concentration:

Mode

6 4



< User concentr.>

choose no.: ____

(850-859)

8 5 0

Entry Procedure:

The display shows:

Overwrite conc. meth.?

YES: 1, NO: 0

wavelength:

1: 530 nm

2: 560 nm

3: 610 nm

2

Enter a method number in the range from 850 to 859, e.g.: [Shift] + [8][5][0]


Note: if the entered number has already been used to save a concentration the display shows the query:

• Press [Shift] + [0] or [ESC] keys to go back to method no.

query.

• Press [Shift] + [1] keys to start entry mode.

Enter the required wavelength, e.g.: [Shift] + [2] for

560 nm.

Press [ ] or [ ] keys to select the required unit.

choose unit:

>> mg/l g/l mmol/l mAbs

µg/l

E

A

%


148 PM620_6c 02/2021

choose resolution

1: 1

2: 0.1

3: 0.01

4: 0.001

3


prepare Zero

press ZERO

Zero


Zero accepted

S1: +________

| ESC | F1

0 0

.

5


S1: 0.05 mg/l

prepare

press TEST

Test

S1: 0.05 mg/l

mAbs: 12

S1 accepted

S2: +________

| ESC | F1

0 1

.

Press the appropriate numerical key to select the required resolution, e.g.: [Shift] + [3] for 0.01.

Note:

Please enter the required resolution according to the instrument pre-sets: range

0.000 ...9.999

10.00 ...99.99

100.0... 999.9

1000 ...9999

max. resolutions

0.001

0.01

0.1

1

Measurement procedure with standards of known concentration:

The display shows:

Prepare Zero and press [Zero] key.

Note:

Use deionised water or reagent blank value.

The display shows:

Enter the concentration of the first standard; e.g.: [Shift] + [0][.][0][5]

• One step back with [ESC].

• Press [F1] key to reset numerical input.


The display shows:

Prepare the first standard and press [Test] key.

The display shows the input value and the measured absorption value. Confirm with [ ] key.

Enter the concentration of the second standard; e.g.: [Shift] + [0][.][1]

• One step back with [ESC].



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149

S2: 0.10 mg/l

prepare

press TEST

S2: 0.10 mg/l

mAbs: 150

S2 accepted

S3: +________

| ESC | F1 | Store

Prepare the second standard and press [Test] key.

The display shows the input value and the measured absorption value. Confirm with [ ] key.

Note:

• Perform as described above to measure further stan-

dards.

• The minimum of measured standards is 2.

• The maximum of measured standards is 14 (S1 to S14).

Store

If all required standards or the maximum value of 14 standards are measured press [Store] key.

The display shows:

stored!

The instrument goes back to the mode menu automatically.

Now the concentration is stored in the instrument and can be recalled by entering its method number or selecting it from the displayed method list.

TIP:

Save all your concentration data in a written form because in case of power outage

(e.g. changing the battery) all concentration data will be lost and must be entered again.

You might want to use Mode 67 to transfer all concentration data to a PC.

User Polynomials

It is possible to enter and store up to 25 User Polynomials.

The program allows the user to apply a Polynomial up to the 5th degree: y = A + Bx + Cx 2 + Dx 3 + Ex 4 + Fx 5

If only a Polynomial of a lower degree is necessary the other coefficients are specified as zero (0), e.g.: for the 2nd degree is D, E, F = 0.

The values of the coefficients A, B, C, D, E, F must be entered in an academic notation with maximal 6 decimal places, e.g.: 121,35673 = 1,213567E+02

Entering a User Polynomial:

5


Mode

6


The display shows:

<User polynoms>

choose no.: ____

(800-824)

8 0 0

150

Enter a method number in the range from 800 to 824, e.g.: [Shift] + [8][0][0]

PM620_6c 02/2021

Overwrite polynom?

YES: 1, NO: 0


Note: if the entered number has already been used to save a polynomial the display shows the query:

• Press [Shift] + [0] or [ESC] keys to go back to method no.

query.

• Press [Shift] + [1] keys to start entry mode.

Enter the required wavelength, e.g.: [2] for 560 nm.

wavelength:

1: 530 nm

2: 560 nm

3: 610 nm

2

< User polynoms>

y = A+Bx+Cx 2 +Dx 3 +

Ex 4 +Fx 5

A: +________

1 3

3

.

A: 1.32____ E+____

B: +________

2

measurement range

Min mAbs: +________

Max mAbs: +________

PM620_6c 02/2021

• Press [ ] or [ ] key to change between plus and minus

sign

• Enter data of the coefficient A including decimal point,

e.g.: [Shift] + [1][.][3][2]




sign

• Enter the exponent of the coefficient A, e.g.: [Shift] + [3]


Successively the instrument queries the data for the other coefficients (B, C, D, E and F).

Note:

If zero [0] is entered for the value of the coefficient, the input of the exponent is omitted automatically.

Confirm every input with [ ] key.

Enter measurement ranges from – 2600 to +2600 mAbs.


sign.

• Enter the values in Absorbance (mAbs) for the upper limit

(Max) and the lower limit (Min).

Confirm every input with [ ] key.

151

choose unit:

>> mg/l g/l mmol/l mAbs

µg/l

E

A

%

Press [ ] or [ ] keys to select the required unit.

choose resolution

1: 1

2: 0.1

3: 0.01

4: 0.001

3


Press the appropriate numerical key to select the required resolution, e.g.: [Shift] + [3] for 0.01.

Note:

Please enter the required resolution according to the instrument pre-sets: range

0.000 ...9.999

max. resolutions

0.001

10.00 ...99.99

100.0... 999.9

1000 ...9999

0.01

0.1

1

stored!

The display shows:

The instrument goes back to the mode menu automatically.

Now the polynomial is stored in the instrument and can be recalled by entering its method number or selecting it from the displayed method list.

TIP:

Save all your polynomial data in a written form because in case of power outage

(e.g. changing the battery) all polynomial data will be lost and must be entered again.

You might want to use Mode 67 to transfer all polynomial data to a PC.

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Delete User Methods (Polynomial or Concentration)

In principle a valid user method can be overwritten.

An existing user method (Polynomial or Concentration) can be totally deleted as well and is removed out of the method selection list:

6 6

Mode



<User m. clear>

choose no.: _______

(800-824), (850-859)

8 0 0

The display shows:

Enter the number of the User Method you want to delete

(in the range from 800 to 824 or 850 to 859), e.g.: [Shift] + [8][0][0]


The query is displayed: M800

delete?

YES: 1, NO: 0

1

0

• Press [Shift] + [1] keys to delete the selected

User Method.

• Press [Shift] + [0] keys to keep the valid User Method.


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Print Data of User Methods (Polynomials & Concentration)

With this Mode function all data (e.g. wavelength, unit ...) of stored user polynomials and concentration methods can be printed out or transferred with HyperTerminal to a PC.

6 7

Mode



<User m. print>

Start:

The display shows:

Press [ ] key to print out the data (e.g. wavelength, unit, ...) of all stored User Methods.

M800

M803

...

The display shows e.g.:

After data transfer the photometer goes back to mode menu automatically.

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Initialise User Method System (Polynomials & Concentration)

Power loss will cause incoherent data. The user method system must be initialised with this mode function to set it to a predefined state.

ATTENTION:

All stored user methods (polynomial & concentration) are deleted with initialisation.

Mode

6 9



<User m. init>

Start:

The display shows:


The query is displayed: Initialising?

YES: 1, NO: 0

1

0

• Press [Shift] + [1] keys to start initialisation.

• Press [Shift] + [0] keys to to cancel without initialisation.


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2.4.8 Special functions

Langelier Saturation Index (Water Balance)

For calculation the following tests are required:

• pH-value

• Temperature

• Calcium hardness

• Total Alkalinity

• TDS (Total Dissolved Solids)

Run each test separately and note the results.

Calculate the Langelier Saturation Index as described:

Calculation of Langelier Saturation Index

Mode

7 0

With Mode 71 (see below) it is possible to select between degree Celsius or degree Fahrenheit.



<Langelier>

temperature °C:

3°C <=T<=53°C

+_ _ _ _

The display shows:

Enter the temperature value (T) in the range between 3 and

53°C and confirm with [ ] key. If °F was selected, enter the temperature value in the range between 37 and 128°F.

calcium hardness

50<=CH<=1000

+_ _ _ _

The display shows:

Enter the value for Calcium hardness (CH) in the range between 50 and 1000 mg/l CaCO

3

and confirm with [ ] key.

tot. alkalinity

5<=TA<=800

+_ _ _ _

The display shows:

Enter the value for Total Alkalinity (TA) in the range between

5 and 800 mg/l CaCO

3

and confirm with [ ] key.

total dissol. solids

0<=TDS<=6000

+_ _ _ _

The display shows:

Enter the value for TDS (Total Dissolved Solids) in the range between 0 and 6000 mg/l and confirm with [ ] key.

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pH value

0<=pH<=12

+_ _ _ _

<Langelier>

Langelier

saturation index

0.00

Esc

Examples:

CH<=1000 mg/l CaCO3!

CH>=50 mg/l CaCO3!

The display shows:

Enter the pH-value in the range between 0 and 12 and confirm with [ ] key.

The display shows the Langelier Saturation Index.

Press [ ] key to start new calculation.

Return to mode menu by pressing [ESC] key.

Operating error:

Values out of defined range:

The entered value is too high.

The entered value is too low.

Confirm display message with [ ] key and enter a value in the defined range.

Selection of temperature unit

Entering the temperature value is possible in degree Celsius or degree Fahrenheit.

Therefore the following preselection is (once) required.

7 1

Mode


<temperature>

1: °C 2: °F

1

2


The display shows:

Press [Shift] + [1] keys to select degree Celsius.

Press [Shift] + [2] keys to select degree Fahrenheit.


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2.4.9 Instrument basic settings 2

Adjusting display contrast

8 0

Mode



<LCD contrast>

1 1

The display shows:

• Press arrow key [ ] to increase contrast of the LCD display about one unit.

• Press arrow key [ ] to decrease contrast of the LCD display about one unit.

10 10

Store

Test

• Press [Store] key to increase contrast of the LCD display about ten units.

• Press [Test] key to decrease contrast of the LCD display about ten units.


Adjusting display brightness

Mode

8 1

Press [MODE] [8] [1] keys.


<LCD brightness>

1 1

The display shows:

Press [ ] key to increase brightness of the display about one unit.

Press [ ] key to decrease brightness of the display about one unit.

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10 10

Store

Test

0...254 : 200

Press [Store] key to increase brightness of the display about ten units.

Press [Test] key to decrease brightness of the display about ten units.

The display shows:

The brightness can be selected between 0 and 254 units, e.g.: 200.


2.4.10 Instrument special functions /service

Photometer-Information

Mode

9 1



<System-Info>

Software:

V201.001.1.001.002

more: , cancel: Esc

<System-Info>

Number of Tests:

139


999

cancel: Esc

This method informs you about the current software version, about the number of performed tests and free memory capacity.

Press arrow key [ ] to display the number of performed tests and free memory capacity.

Finish with [ESC] key.

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2.5 Data transfer

To print data or to transmit to a PC the optional IRiM (Infra-Red Interface Module) is required.

2.5.1 Data Printing

Besides the IRiM module the following printer is required to print data directly using the USB

Interface of the module: HP Deskjet 6940.

2.5.2 Data transfer to a personal computer

Besides the IRiM a transfer program, is required to transmit test results.

Please find detailed information in the IRiM manual or at our homepage in the downloadarea.

2.5.3 Internet Updates

To connect the instrument to the serial interface of a computer the optional connection cable with integrated electronic system is required.

It is possible to update new software applications and additional languages via the internet.

Please find detailed information at our homepage in the download-area.

How to open and close the battery compartment cover see chapter 2.1.3!

Please Note:

To prevent loss of stored test results store or print them out before performing an Update.

If the update procedure is interrupted (eg. interruption of connection, LoBat., etc.) the instrument isn´t able to work (no display). The instrument will only work again after completing the data transfer.

RJ 45 connector

AA

/LR

6

R6

AA

AA

/L

R6

R6

AA

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Part 3

Enclosure

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3.1 Unpacking

Carefully inspect all items to ensure that every part of the list below is present and no visible damage has occurred during shipment. If there is any damage or something is missing, please contact your local distributor immediately.

3.2 Delivery contents

Standard contents for PM620:

1 Photometer in plastic case

1 Instruction manual

1 Guarantee declaration

1 Certificate of compliance

4 batteries (1,5V, Type AA/LR 6)

1 battery compartment cover, 4 screws and scewdriver

3 Round vials with cap and sealing ring, height 48 mm, Ø 24 mm

1 Cleaning brush

1 Stirring rod, plastic

1 beaker 100 ml

1 syringe 5 ml

Tablet reagents for each 100 tests:

DPD No. 1

DPD No. 3


CYA-Test

ALKA-M

Further reagent sets are not part of the standard scope of delivery. IRiM module and connection cable with integrated electronic system are not part of the standard scope of delivery. Please see the General Catalogue for details of available reagent sets.

Different Refill Packs available on request.

Reagent

DPD No. 1

DPD No. 3


CyA-TEST

ALKA-M-PHOTOMETER


Tablet / 100 511050BT

Tablet / 100

Tablet / 100

511080BT

511770BT

Tablet / 100

Tablet / 100

511370BT

513210BT

3.3 blank because of technical requirements

162 PM620_6c 02/2021

3.4 Technical data

Display

Serial Interface

Light source

Graphic Display

IR interface for data transfer

RJ45 connector for internet updates (see chapter 2.5.3) light-emitting diode – photosensor – pair arrangement in a transparent measurement chamber

Wavelength ranges:

1 = 530 nm IF = 5 nm

2 = 560 nm IF = 5 nm

3 = 610 nm IF = 6 nm

IF = Interference filter

Wavelength accuracy

Photometric accuracy*

Photometric resolution

Protection

Operation

Power supply

± 1 nm

2% FS (T = 20°C – 25°C)

0.005 A conforming to IP 68 (1 h, 0.1 m)

Acid and solvent resistant touch-sensitive keyboard with integral beeper as acoustic indicator.

4 batteries (Type AA/LR 6); lifetime: approx. 26 hours continuous use or 3500 tests

Auto off 20 minutes after last function,

30 seconds acoustical signal before switch off

Dimensions approx. 210 x 95 x 45 mm (unit)

395 x 295 x 106 mm (case)

Weight (unit) approx. 450 g

Working condition

Language options

Storage capacity

5 – 40°C at max. 30–90% relative humidity

(without condensation)

English, German, French, Spanish, Italian, Portuguese,

Polish; further languages via Internet Update ca. 1000 data sets

* measured with standard solutions

Subject to technical modification!

To ensure maximum accuracy of test results, always use the reagent systems supplied by the instrument manufacturer.

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LR

MR

HR

L

P

PP

T

DPD

PPST

3.5 Abbreviations

°fH

°eH

°aH

Abs

Abbreviation

°C

°F

°dH

μg/l mg/l g/l

K

S 4.3

Definition degree Celsius (Centigrade) degree Fahrenheit °F = (°C x 1.8) + 32 degree German Hardness degree French hardness degree English Hardness degree American Hardness

Absorption unit (= Extinction E)

^ 1E

(= ppb) Microgram per litre

(= ppm) Milligram per litre

(= ppth) gram per litre

Acid demand to pH 4.3 – this method is similar to Total Alkalinity but converted into the unit “mmol/l”, as the German DIN 38409 demand.

Low Range

Medium Range

High Range

Liquid reagent

Powder (reagent)

Powder Pack

Tablet

Diethyl-p-phenylendiamine

3-(2-Pyridyl)-5,6-bis(4-phenylsulfonic acid)1,2,4-triazine

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3.6 Troubleshooting

3.6.1 Operating messages in the display / error display

Display Possible Causes Elimination

Overrange

Underrange

Storagesystem error use Mode 34

Battery warning reading is exceeding the range water sample is too cloudy too much light on the photo cell if possible dilute sample or use other measuring range filtrate water sample seal on the cap?

Repeat measurement with seal on the cap of the vial.

result is under the detection limit indicate result with lower x mg/l x = low end of measuring range; if necessary use other analytical method mains power fails or is not connected insert or change battery.

Delete data with Mode 34 warning signal every 3 minutes warning signal every 12 seconds warning signal, the instrument switches itself off capacity of the battery is too low; change the batteries change the batteries

The user calibration is out of the accepted range

Please check the standard, reaction time and other possible faults.

Repeat the user calibration.

Jus Overrange

E4

Jus Underrange

E4

Overrange

E1

Underrange

E1

E40 user calibration not possible

Zero not accepted

The concentration of the standard is too high/too low, so that during user calibration the limit of the range was exceeded

Perform the test with a standard of higher/lower concentration

If the display shows Overrange/

Underrange for a test result a user calibration is not possible

Light absorption is too great or too low

Perform the test with a standard of higher/lower concentration

Refer to chapter 2.3.4

Performing Zero.

Clean sample chamber.

Repeat zeroing.

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166

Display

???

Possible Causes

The calculation of a value

(e.g. combined Chlorine) is not possible

Elimination

Test procedure correct?

If not – repeat test

Example 1

0,60 mg/l free Cl

??? comb Cl

0,59 mg/l total Cl

Example 1:

The readings for free and total

Chlorine are different, but considering the tolerances of each reading they are the same.

For this reason the combined

Chlorine is most likely zero.

Example 2

Underrange

??? comb Cl

1,59 mg/l total Cl

Example 2:

The reading for free Chlorine is under the detection limit.

The instrument is not able to calculate the combined

Chlorine. In this case the combined Chlorine is most likely the same as the total Chlorine.

Example 3

0,60 mg/l free Cl

??? comb Cl

Overrange

Example 3:

The reading for total Chlorine is exceeding the range.

The instrument is not able to calculate the combined

Chlorine. The test should be repeated with a diluted sample.

PM620_6c 02/2021

3.6.2 General

Finding Possible Causes Elimination

Test result deviates from the expected.

Chemical species not as required.

No differentiation: e.g. for the Chlorine test there is no selection between differentiated, free or total.

Profi-Mode is switched on.

The pre-programmed countdown is not displayed.

Countdown is not activated and/or the Profi-Mode is activated.

Press arrow keys to select the required chemical species.

Switch Profi-Mode off with

Mode 50.

Switch the countdown on with Mode 13 and/or switch the Profi-Mode off with

Mode 50.

It seems that a method is not available.

Method is not activated in the user method list.

Activate the required method in the user method list with

Mode 60.

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3.7 Declaration of CE-Conformity

Konformitätserklärung mit gefordertem Inhalt gemäß EN ISO/IEC 17050-1

Supplier's declaration of conformity in accordance with EN ISO/IEC 17050-1

EU-Konformitätserklärung / EU-Declaration of Conformity

Dokument-Nr. / Monat.Jahr:

Document No. / Month.Year:

2 / 12.2017

Für das nachfolgend bezeichnete Erzeugnis / For the following mentioned product

Bezeichnung / Name,

Modellnummer / Model No.

MD 600 AL 400 PM 600 PM620 , 214020, 4214020, 214060, 214065 wird hiermit erklärt, dass es den grundlegenden Anforderungen entspricht, die in den nachfolgend bezeichneten Harmonisierungsrechtsvorschriften festgelegt sind: / it is hereby declared that it complies with the essential requirements which are determined in the following harmonisation rules:

Richtlinie 2014/30/EU des Europäischen Parlaments und des Rates vom 26. Februar 2014 zur Harmonisierung der Rechtsvorschriften der

Mitgliedstaaten über die elektromagnetische Verträglichkeit .

Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the

Member States relating to electromagnetic compatibility .

RICHTLINIE 2011/65/EU DES EUROPÄISCHEN PARLAMENTS UND DES RATES vom 8. Juni 2011 zur Beschränkung der Verwendung bestimmter gefährlicher Stoffe in Elektro- und Elektronikgeräten (Neufassung)

DIRECTIVE 2011/65/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (recast)

Angabe der einschlägigen harmonisierten Normen, die zugrunde gelegt wurden, oder Angabe der Spezifikationen, für die die Konformität erklärt wird: / Information of relevant harmonised standards and specifications on which the conformity is based:

Fundstelle / Reference

Ausgabedatum/

Edition

Harmosisierte Normen / Harmonised Standards

Titel / Title

DIN EN 61326-1 2013-07

Elektrische Mess-, Steuer-, Regel- und Laborgeräte - EMV-Anforderungen - Teil

1: Allgemeine Anforderungen (IEC 61326-1:2012)

DIN EN 50581 2013-02

Technische Dokumentation zur Beurteilung von Elektro- und Elektronikgeräten hinsichtlich der Beschränkung gefährlicher Stoffe; Deutsche Fassung EN

50581:2012

Weitere angewandte technische Spezifikationen (z.B. nicht im EU-Amtsblatt veröffentlicht) / Further applied technical specifications (e.g. not published in the Official

Journal of the EU)

Diese Erklärung wird verantwortlich für den Hersteller oder seinem Bevollmächtigten / This declaration is made for and on behalf of the manufacturer or his representatives

Name: Tintometer GmbH

Anschrift / Address: abgegeben durch / declared by

Schleefstr. 8-12, 44287 Dortmund, Germany

Name, Vorname / First name:

Funktion / Function:

Dr. Grabert, Elmar

Technische Leitung / Director Technology

Bevollmächtigte Person im Sinne des Anhangs II Nr. 1. A. Nr. 2, 2006/42/EG für die Zusammenstellung der technischen Unterlagen / Authorized person for compilation of technical documents on behalf of Annex II No. 1. A. No. 2, 2006/42/EC:

Name:

Anschrift / Address:

Corinna Meier c/o Tintometer GmbH, Schleefstr. 8-12, 44287 Dortmund

Dortmund 19.12.2017

Ort, Datum / Place and date of issue Rechtsgültige Unterschrift / Authorized signature

Diese Erklärung bescheinigt die Übereinstimmung mit den so genannten Harmonisierungsrechtsvorschriften, beinhaltet jedoch keine Zusicherung von Eigenschaften. / This declaration certifies the conformity to the specified directives but contains no assurance of properties.

Zusatzangaben / Additional details:

Diese Erklärung gilt für alle Exemplare, die nach den entsprechenden Fertigungszeichnungen - die Bestandteil der technischen Unterlagen sind - hergestellt werden. Weitere Angaben über die Einhaltung obiger Fundstellen enthält die beigefügte Konformitätsaussage unterstützende Begleitdokumentation. / This statement is valid for all copies which were manufactured in accordance with the technical drawings which are part of the technical documentation. More details about compliance of the above mentioned references includes the supporting documentation.

Doc file: MD 600 AL 400 PM 600 PM620 DokNr_2__12_2017

168 PM620_6c 02/2021

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170 PM620_6c 02/2021

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171

Tintometer GmbH

Lovibond ® Water Testing

Schleefstraße 8-12

44287 Dortmund

Tel.: +49 (0)231/94510-0

Fax: +49 (0)231/94510-30 [email protected]

www.lovibond.com

Germany

The Tintometer Limited

Lovibond House

Sun Rise Way

Amesbury, SP4 7GR

Tel.: +44 (0)1980 664800

Fax: +44 (0)1980 625412 [email protected] www.lovibond.com

UK

Tintometer Inc.

6456 Parkland Drive

Sarasota, FL 34243

Tel: 941.756.6410

Fax: 941.727.9654

[email protected] www.lovibond.us

USA

Tintometer Spain

Postbox: 24047

08080 Barcelona

Tel.: +34 661 606 770 [email protected] www.lovibond.com

Spain

Tintometer China

Room 1001, China Life Tower

16 Chaoyangmenwai Avenue,

Beijing, 100020

Tel.: +86 10 85251111 App. 330

Fax: +86 10 85251001 [email protected] www.lovibond.com/zh

China

Tintometer South East Asia

Unit B-3-12, BBT One Boulevard,

Lebuh Nilam 2, Bandar Bukit Tinggi,

Klang, 41200, Selangor D.E

Tel.: +60 (0)3 3325 2285/6

Fax: +60 (0)3 3325 2287 [email protected] www.lovibond.com

Malaysia

Tintometer Brazil

Caixa Postal: 271

CEP: 13201-970

Jundiaí – SP

Tel.: +55 (11) 3230-6410 [email protected] www.lovibond.com.br

Brazil

Tintometer Indien Pvt. Ltd.

Door No: 7-2-C-14, 2 nd , 3 rd & 4 th Floor

Sanathnagar Industrial Estate,

Hyderabad: 500018, Telangana

Tel: +91 (0) 40 23883300

Toll Free: 1 800 599 3891/ 3892 [email protected]

www.lovibondwater.in

India

Technical changes without notice

Printed in Germany 02/21

Lovibond ® and Tintometer ® are registered trademarks of the

Tintometer group of companies.

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