Tintometer Lovibond TB 250 WL User manual

GB Instruction Manual
Lovibond®Water Testing
Tintometer®Group
Turbidimeter
TB 250 WL

Routine Measurement
1. Press [On/Off] key.
2. Rinse a clean vial with the sample three times. Fill the vial with the sample.
Replace cap and wipe, dry and then oil the vial with the supplied cleaning
tissue ensuring that the surface is clean and dry.
3. Place the vial in the sample chamber and align correctly.
4. Press [ ] key to start measurement.
5. Record the NTU value
User Calibration
1. Press [Cal] key.
2. Place the 1000 NTU standard in the sample chamber, making sure that the
marks are aligned. Press [ ] key. Reading starts automatically after count down.
3. Place the 10 NTU standard in the sample chamber, making sure that the marks
are aligned. Press [ ] key. Reading starts automatically after count down.
4. Place the 0.02 NTU standard in the sample chamber, making sure that the
marks are aligned. Press [ ] key. Reading starts automatically after count down.
5. At the end of the successful calibration „-rd-“ is displayed
NOTE: any flashing or numerical value indicates that a questionable
calibration has taken place. Please see the calibration section
Short manual

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 2002/96/EC 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.
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 2002/96/EC 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.
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 2002/96/EC, 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.
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
2002/96/EG 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.
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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 2002/96/CE, ¡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.
Informazioni importanti
Conservare, proteggere e migliorare la qualità dell’ambiente
Smaltimento di apparecchiature elettriche nell’Unione Europea
In base alla Direttiva europea 2002/96/EC, 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.
Informação Importante
Para Preservar, Proteger e Melhorar a Qualidade do Ambiente
Remoção de Equipamento Eléctrico na União Europeia
Devido à Directiva Europeia 2002/96/CE, 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).
Istotna informacja
Dla zachowania, ochrony oraz poprawy naszego środowiska
Usuwanie urządzeń elektronicznych w Unii Europejskiej
Na podstawie Dyrektywy Parlamentu Europejskiego 2002/96/EC 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 rmy Tintometer mogą Państwo przesyłać na koszt własny do swojego
dostawcy.
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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).
Important disposal instructions for batteries and accumulators
EC Guideline 2006/66/EG 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.
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).
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)
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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).
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).
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1
TB 250 WL_3b 04/2020
TB 250 WL 3b 04/2020
Safety precautions
CAUTION
Please read the instruction manual before unpacking, setting up or using the
turbidimeter. Please read the description completely before performing the test.
Be aware of the risks of using the required standards 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.

2TB 250 WL_3b 04/2020
Table of contents
Part 1 Description...............................................................................................5
1.1 General description ...........................................................................................6
1.2 Operating principles ..........................................................................................6
1.3 Factory calibration.............................................................................................6
1.4 Important notes ................................................................................................7
1.4.1 Guidelines for turbidity measurements ..............................................................7
1.4.2 Cleaning of vials & sampling containers.............................................................8
Part 2 Operating manual...............................................................................9
2.1 Operating......................................................................................................10
2.1.1 Commissioning ...............................................................................................10
2.1.2 Replacement of batteries.................................................................................10
2.1.3 Instrument (explosion drawing) .......................................................................11
2.2 Overview of function keys ...............................................................................12
2.2.1 Auto-Off Feature.............................................................................................12
2.3 Operation mode..............................................................................................13
2.3.1 Perform turbidity measurement.......................................................................14
2.3.2 User calibration ...............................................................................................16
2.3.2.1 When to calibrate............................................................................................16
2.3.2.2 Calibration ......................................................................................................16
2.3.2.2.1 Vial Preparation and Inspection Prior to Calibration .........................................16
2.3.2.2.2 Calibration Standard Transfer Into Vials ...........................................................18
2.3.2.2.3 Calibration Procedure......................................................................................19
2.3.2.3 Calibration errors ............................................................................................21
2.3.2.4 Factory calibration reset...................................................................................21
2.3.2.5 Calibration standards ......................................................................................21
2.3.3 Measurement techniques ................................................................................22
2.3.3.1 Degassing – removal of bubbles ......................................................................22
2.3.3.2 Measurement of high turbidity values..............................................................23
2.3.3.3 Measurement of low turbidity values...............................................................23
2.3.3.4 Indexing and matching sample vials.................................................................23
2.3.3.5 Indexing a single sample vial............................................................................24

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TB 250 WL_3b 04/2020
Part 3 Enclosure.................................................................................................25
3.1 Unpacking.......................................................................................................26
3.2 Delivery content ..............................................................................................26
3.2.2 Re-Order Codes...............................................................................................26
3.3 Technical data .................................................................................................27
3.4 Abbreviations ..................................................................................................28
3.5 Trouble-shooting... ..........................................................................................29
3.5.1 Operating messages in the display / error display.............................................29
3.6 Declaration of CE-Conformity..........................................................................30

4TB 250 WL_3b 04/2020

5
TB 250 WL_3b 04/2020
Part 1
Descriptions

6TB 250 WL_3b 04/2020
1.1 General description
The TB 250 WL is designed to meet the criteria specified in U.S. EPA 180.1 on turbidity meas-
urement. The TB 250 WL allows for the measurement of turbidity in the field. The instrument
features auto ranging over the range of 0.01 to 1100 NTU/FNU.
The turbidimeter is supplied in a case complete with accessories. The included standards
guarantee accurate, stable and reproducible results.
1.2 Operating principles
The instrument measures turbidity in the range 0.01 to 1100 NTU/FNU featuring auto
ranging. The light source is a tungsten lamp compliant with U.S. EPA Method 180.1.
The emitted light is reflected by turbidity
in the sample. The scattered light will be
detected at an angle of 90° relative to the
incident light beam by a photodiode.
This principle is part of ISO 7027, except
the emitted light source is at 860±60 nm.
The international Reference Standard
for turbidity is a Formazin solution. The
TB250 WL calibration is based upon an US
EPA approved standard.
1.3 Factory calibration
The turbidimeter TB 250 WL is factory calibrated with secondary standards and does not
require user calibration before use. See chapter 2.3.2 User Calibration.

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TB 250 WL_3b 04/2020
1.4 Important Notes
1.4.1 Guidelines for turbidity measurements
a) Vials and caps should be cleaned thoroughly after each test to avoid interferences. Store
washed vials with deionized water until ready to use. Minor residuals can cause errors.
b) Always rinse the vial at least three (3) times with sample. When filling the vial the final
time, use care not to introduce bubbles into the sample. Immediately cap the vial after
filling. Never shake the sample. Gentle inversion of the sample vial is the best practice.
c) The outside of the vial must be clean and dry, before starting the test. Wipe the vials with
a smooth cloth to remove fingerprints or waterdrops. Follow with oiling the vial, by plac-
ing a very thin bead of silicone oil down the side of the vial. Evenly spread the bead of oil
over the bottom 2/3’s of the vial. Then wipe the silicone from the vial through rotation of
the vial against a clean, dust-free tissue.
d) The vials must be positioned in the sample chamber with the mark on the vial aligned
with the mark on the instrument.
e) Always perform the test with securely capped vials.
f) Bubbles on the inside of the vial lead to errors . See chapter 2.3.3.1 Removing bubbles
(Degassing).
g) Avoid spillage of water in the sample chamber. If water should leak into the instrument,
it can destroy electronic components and cause corrosion.
h) 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. For best results, perform tests with sample temperatures between 20°C (68°F) and
25°C (77°F).
i) To avoid errors caused by stray light do not use the instrument in bright sunlight.
j) Use the instrument in a clean, dust-free environment on a table that is free from vibra-
tion / agitation.
321 54

8TB 250 WL_3b 04/2020
1.4.2 Cleaning of vials & sampling containers
Vials, caps and sampling containers should be cleaned thoroughly after each test to avoid
influences. Minor residuals can cause errors.
Residuals:
Cleaning of the vials will vary according to the different types of water sample used.
• Replace scratched vials immediately.
• Rinse vials thoroughly with filtered deionized water after each measurement. Filtered water
is best produced by pushing deionized water through a 0.2 µm or smaller pore sized filter.
• Clean all glassware thoroughly with laboratory detergent and rinse with filtered deionized
water.
• Clean heavy contamination by filling the vials with 1:1 HCL followed by multiple rinses with
distilled or filtered deionized water.
• Allow vials to air dry.
• Touch vials only at the top to minimize dirt and fingerprints.
• Wipe the vials with a lint-free cloth to remove waterdrops and fingerprints.

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TB 250 WL_3b 04/2020
Part 2
Operating manual

10 TB 250 WL_3b 04/2020
2.1 Operation
2.1.1 Commissioning
This manual contains basic instructions for the operation, care and maintenance of the in-
strument. The safety protection provided by this equipment may be impaired if it is used in a
manner not described in this manual. It is recommended that all operators should read this
manual prior to working with this instrument.
Before working with the TB 250 WL insert the batteries (part of delivery). See chapter 2.1.2
Replacement of batteries.
2.1.2 Replacement of batteries
Recommendation: Don't use rechargeable batteries!
1. Switch the instrument off if neccessary.
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.

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TB 250 WL_3b 04/2020
2.1.3 Instrument (explosion drawing):
(A) screws
(B) battery compartment cover
(C) notch
(D) batteries: 4 batteries (AA/LR6)
(E) seal ring
(F) instrument back
CAUTION:
To ensure that the battery compartment is water proof:
• seal ring (E) must be in position
• battery compartment cover (B) must be fixed with the four screws
AA/LR6
AA/LR6
A
A/LR6
AA/LR6
(D) batteries
(E) seal ring
(C) notch
(F) instrument back
(B) battery
compartment
cover
(A) screws

12 TB 250 WL_3b 04/2020
2.2 Overview of function keys
The key pad has five buttons:
Switching the photometer on or off.
Perform a calibration.
Perform a measurement. Press down and hold this key to index the
current sample. When the key is released a reading or calibration begins.
Change the calibration points.
ON
OFF
Cal
2.2.1 Auto-Off Feature
The instrument auotmatically turns off after 5 minutes of non-use. Press any key to avoid the
instrument from turning off.