wtw TetraCon 700-...Ex Series Instrucțiuni de utilizare

Marca: wtw

Model: TetraCon 700-...Ex Series

Tip: Instrucțiuni de utilizare

OPERATING MANUAL

ba77055e01 05/2014

TetraCon

700-...Ex

Ex ib IIC T6 Gb X

CONDUCTIVITY MEASURING CELL,

SUITABLE FOR OPERATION IN POTENTIALLY EXPLOSIVE ATMOSPHERES

ba77055e01 05/2014

TetraCon

700-...Ex

DE Deutsch

Beachten Sie beim Betrieb in explosionsgefährdeten Bereichen die Sicher-

heitsanforderungen gemäß Dokument ba77057y.

EN English

For operation in a potentially explosive atmosphere, heed the safety require-

ments according to document ba77057y.

BG български

При работа във взривоопасна среда спазвайте изискванията за

безопасност съгласно Документ 77057y.

CS Česky

Při provozu v oblastech ohrožených výbuchem prosím dodržujte bezpečnostní

požadavky dle dokumentu ba77057y.

DA Dansk

Overhold sikkerhedskravene i henhold til dokument ba77057y ved drift i

eksplosionsfarlige områder.

EL Ελληνικά

Κατά τη λειτουργία σε εκρήξιμες ατμόσφαιρες λάβετε υπόψη τις απαιτήσεις

ασφάλειας σύμφωνα με το έγγραφο ba77057y.

ES Español

Al trabajar en zonas expuestas a explosiones observe las prescripciones de

seguridad conforme al documento ba77057y.

ET Eesti keel

Plahvatusohtlikus keskkonnas käitamisel arvestage dokumendis ba77057y

sätestatud ohutusnõuetega.

FI Suomi

Jos käytät laitetta räjähdysalttiilla alueilla, noudata asiakirjan 77057y mukaisia

turvallisuusvaatimuksia.

FR Français

En cas d'utilisation dans les zones à risques d'explosion, respecter les exi-

gences de sécurité selon le document ba77057y.

HR Hrvatski

Pri radu u područjima u kojima postoji opasnost od eksplozije pridržavajte se

sigurnosnih zahtjeva u skladu s dokumentom ba77057y.

HU Magyar

Robbanásveszélyes területen történő üzemeltetés esetén vegye figyelembe a

ba77057y jelű dokumentumban előírt biztonsági követelményeket.

IT Italiano

In caso di utilizzo in atmosfere potenzialmente esplosive osservare le

disposizioni di sicurezza riportate nel documento ba77057y.

LT Lietuviškai

Dirbdami zonose su sprogia aplinka laikykitės ba77057y dokumento saugumo

technikos nurodymų.

LV Latviešu

Ekspluatācijas laikā, sprādzienbīstamajās zonās ievērojiet drošības prasības

saskaņā ar dokumentu ba77057y.

NL Nederlands

Neem bij het gebruik in explosie-gevaarlijke omgevingen de veiligheids-

voorschriften volgens document ba77057y in acht.

NO Norsk

Ved bruk i eksplosjonsfarlige omgivelser skal du følge sikkerhetskravene i

henhold til dokument ba77057y.

PL Polski

Przy eksploatacji w obszarach zagrożonych wybuchem należy przestrzegać

wymogów bezpieczeństwa zgodnie z dokumentem ba77057y.

PT Português

Durante a operação nas áreas com risco de explosão, observar os requisitos

de segurança de acordo com o documento ba77057y.

RO Română

În cazul utilizării în zone cu potenţial exploziv, vă rugăm să respectaţi cerinţele

de siguranţă conform documentului ba77057y.

RU Русский

При работе во взрывоопасных зонах соблюдайте инструкции по технике

безопасности, приведенные в документе ba77057y.

SK Slovensky

Pri prevádzke v priestoroch s nebezpečenstvom výbuchu dodržiavajte

bezpečnostné požiadavky uvedené v dokumente ba77057y.

Slovenščina

Ob obratovanju v eksplozijsko ogroženih območjih morate upoštevati varnos-

tne zahteve v skladu z dokumentom ba77057y.

SV Svenska

Vid drift i områden med explosionsrisk ska säkerhetskraven enligt dokument

ba77057y beaktas.

TR Türkçe

Lütfen patlama tehlikesi bulunan alanlarda kullanırken ba77057y numaralı bel-

ge doğrultusundaki güvenlik talimatlarını dikkate alınız.

TetraCon

700-...Ex Contents

ba77055e01 05/2014 3

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.1 Structure of the TetraCon

700-...Ex conductivity measuring cell . . . . . . . . . . . . . . . . . . . 4

1.2 Recommended fields of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3 Variants and identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1.1 Hazard warnings in this operating manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1.2 Safety information on the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Safe operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2.2 Requirements for safe operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2.3 Unauthorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2.1 Use in potentially explosive atmospheres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2.2 Connection to the measuring transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.3 Configuration of the measuring transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4 Measurement / operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.2 Application-dependent settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

7.1 General features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7.2 Explosion protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7.3 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7.4 Measurement conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

7.5 Characteristic data on delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

TetraCon

700-...Ex - Contents

4 ba77055e01 05/2014

Overview TetraCon

700-...Ex

1 Overview

1.1 Structure of the TetraCon

700-...Ex conductivity

measuring cell

Fig. 1-1 Structure of the TetraCon

700-...Ex conductivity measuring cell

1Shaft

2 Closing head with protective ring

3 Voltage electrodes

4 Temperature sensor

5 Current electrodes (ring)

Sensor element

TetraCon

700-...Ex Overview

ba77055e01 05/2014 5

1.2 Recommended fields of application

The TetraCon

700-...Ex conductivity measuring cell is suitable for

stationary measurements in water/wastewater applications.

Characteristics The principle of the measurement method makes it possible to avoid

influences from primary or secondary polarization effects. This ensures

a high degree of measuring accuracy.

The modern epoxy casting technique reduces the danger of breaking

the conductivity measuring cell in rough industry use.

1.3 Variants and identification

Instrument identification The instrument designation is printed on the plug-sided end of the

cable. The series number is engraved in the closing head. Have these

designations ready in case of queries to the WTW service department.

6 ba77055e01 05/2014

Safety TetraCon

700-...Ex

2Safety

2.1 Safety information

2.1.1 Hazard warnings in this operating manual

The hazard warnings are defined for the following levels of danger:

2.1.2 Safety information on the product

Note all labels, information signs and safety symbols on the product.

DANGER

DANGER indicates a possibly dangerous situation that

causes death or serious injuries if the safety instruction

is not followed.

WARNING

WARNING indicates a possibly dangerous situation that

can cause death or serious injuries if the safety instruc-

tion is not followed.

CAUTION

CAUTION indicates a possibly dangerous situation that

can cause slight or medium injuries if the safety instruc-

tion is not followed.

ATTENTION

ATTENTION indicates a situation where goods might be

damaged if the actions mentioned are not taken.

TetraCon

700-...Ex Safety

ba77055e01 05/2014 7

2.2 Safe operation

2.2.1 Authorized use

Authorized use of the TetraCon

700-...Ex consists of stationary con-

ductivity measurements in the following areas:

 Water and wastewater

 Environment

 Industry.

According to the directive 94/9/EC (ATEX), the TetraCon

700-...Ex is

approved for use in potentially explosive atmospheres. The character-

istics concerning explosion protection as well as the safety instructions

and other details are given in the enclosed documentation on explosion

protection, ba77057y. The documentation on explosion protection is

available in numerous languages.

2.2.2 Requirements for safe operation

Note the following points for safe operation:

 The product may only be operated according to the authorized use

specified above.

 The product may only be supplied with power by the energy sources

mentioned in this operating manual.

 The product may only be operated under the environmental condi-

tions mentioned in this operating manual.

 The product or its components may only be opened if this is required

for installation and maintenance work and described in the operating

manual.

2.2.3 Unauthorized use

The product must not be put into operation if:

 it is visibly damaged (e.g. after being transported)

 it was stored under adverse conditions for a lengthy period of time

(storing conditions, see chapter 7 Technical data).

DANGER

Danger of explosion. Noncompliance with the safety

requirements according to the explosion protection doc-

umentation ba77057y can cause a potentially explosive

atmosphere to detonate. Explosion protection is com-

pletely ensured only when all safety requirements are

met.

8 ba77055e01 05/2014

Commissioning TetraCon

700-...Ex

3 Commissioning

3.1 Scope of delivery

 TetraCon

700-...Ex with protective cap

 Operating manual

 Documentation on explosion protection ba77057y

3.2 Installation

3.2.1 Use in potentially explosive atmospheres

3.2.2 Connection to the measuring transmitter

The connection cable of the TetraCon

700-...Ex has free wire ends to

be connected to a terminal strip.

Stratos Pro connection

diagram

DANGER

Danger of explosion. Noncompliance with the safety

requirements according to the explosion protection doc-

umentation ba77057y can cause a potentially explosive

atmosphere to detonate. Explosion protection is com-

pletely ensured only when all safety requirements are

met.

Wire color, sensor Terminal,

Stratos Pro

Terminal

designation

Pink A I hi

Gray B U hi

Yellow C U lo

Green D I lo

White E RTD (GND)

Brown F + G (with bridge) RTD / RTD (Sense)

Black H shield

On the Stratos Pro measuring transmitter, the terminal strip

for the sensor connection is behind the black cover with the

"ESD shield" label. For more details please refer to the

operating manual of the measuring transmitter.

TetraCon

700-...Ex Commissioning

ba77055e01 05/2014 9

3.3 Configuration of the measuring transmitter

The following values must be set in the CONF menu of the Stratos Pro

measuring transmitter:

Menu item (CONF menu) Value

Sensor type 4-Electrode

Cell constant 0.9170 c

Type of the temperature sensor 30 NTC

For details on operation, see the operating manual of the

measuring transmitter.

10 ba77055e01 05/2014

Measurement / operation TetraCon

700-...Ex

4 Measurement / operation

4.1 Measuring

Minimum immersion

depth

Please observe the minimum immersion depth of the conductivity

measuring cell (> 30 mm).

Spacing

Please make sure that the conductivity measuring cell is surrounded by

a free space of at least 5 cm at the base and sides (boundary fields)

during measurement.

Measuring at a narrow

location If the free space is less than that, the cell constant changes. This leads

to inexact measurement results. Normally, measuring transmitters

have a correction function that can compensate for this influence. This

procedure determines a new cell constant for the system consisting of

conductivity measuring cell + measuring environment. For more

detailed information, refer to section 4.2 A

PPLICATION-DEPENDENT

SETTINGS.

WARNING

Contact with the sample can lead to danger to the user!

Depending on the type of sample, suitable protective

measures must be taken (protective clothing, protective

goggles, etc.).

> 30 mm

TetraCon 700

> 50 mm

Normally, the conductivity measuring cell does not age.

Special measuring media (e.g. strong acids and bases,

organic solvents) or temperatures that are too high may

considerably reduce its lifetime or lead to damage. No war-

ranty claims can be made for mechanical damage or any

failure caused by these types of measuring media.

TetraCon

700-...Ex Measurement / operation

ba77055e01 05/2014 11

4.2 Application-dependent settings

The TetraCon

700-...Ex conductivity measuring cell is long-term

stable. The conductivity measuring cell is immediately ready for opera-

tion for the authorized use in water/wastewater applications.

Adapting the cell

constant to the

installation location

In the case of special installation conditions, it may be necessary to

adapt the cell constant (due to the influence of the measuring environ-

ment, e.g. of boundary fields).

In chapter 6 W

HAT TO DO IF... of this operating manual you will find the

correct values to set for some products of the WTW accessory program

that require a correction of the cell constant (if it is possible to give fixed

values at all). If necessary, special installation recommendations for the

TetraCon

700-...Ex can be found in the accessory operating manual.

Details on how to determine and set the cell constant can

be taken from the operating manual of the measuring trans-

mitter.

12 ba77055e01 05/2014

Maintenance, cleaning, disposal TetraCon

700-...Ex

5 Maintenance, cleaning, disposal

5.1 Maintenance

The TetraCon

700-...Ex conductivity measuring cell does not require

maintenance.

5.2 Cleaning

If the conductivity measuring cell is heavily contaminated, this can

affect the measuring accuracy. Therefore, we recommend cleaning the

conductivity measuring cell regularly according to visual checks. Espe-

cially before measuring low conductivity values, we recommend to

clean the measuring cell thoroughly.

Cleaning

5.3 Disposal

We recommend to dispose of the conductivity measuring cell as elec-

tronic waste.

WARNING

Contact with the sample can lead to danger to the user!

Depending on the type of sample, suitable protective

measures must be taken (protective clothing, protective

goggles, etc.).

Contamination Cleaning agents Reaction time at

room temperature

Water-soluble sub-

stances

Tap water Any

Slurry and loosely

adhering dirt or bio-

logical films

Soft brush, warm tap-

water with washing-

up liquid

Any

Fats and oils – Warm water and

household

washing-up liquid

– In the case of

heavy

contamination:

Methylated spirits

–Any

– Maximum of 5

minutes

Lime and hydroxide

deposits

Acetic acid (10 %) Any

TetraCon

700-...Ex What to do if...

ba77055e01 05/2014 13

6 What to do if...

Measurement delivers

no or wrong measured

values

Measurement provides

implausible measured

values

Cause Remedy

– Conductivity measuring cell not

correctly connected

– Check connection to measur-

ing transmitter

– Cable damaged – Check the cable. If it is defec-

tive, send conductivity mea-

suring cell to WTW

– Measuring range exceeded – Select a larger measuring

range or set the automatic

selection of the measuring

range

Cause Remedy

– Conductivity measuring cell is

heavily contaminated

– Clean the conductivity mea-

suring cell

– Boundary field not maintained – The conductivity measuring

cell must be surrounded by a

free space of at least 5 cm at

the base and sides during

measurement. Otherwise, the

cell constant will change (see

section 4.1 M

EASURING)

– Electrodes damaged – Send the measuring cell to

WTW

– System setting incorrect – Correct the system setting

– Measuring range exceeded – Make sure the correct sensor

is being used for the applica-

tion

– The measuring cell was

installed in a flow-thru device

and the boundary field is not

sufficient

– Set the cell constant to the

value of the installed state (if

known)

– If the cell constant of the mea-

suring cell in the installed

state is not known, adjust the

measured value to the nomi-

nal value of a measuring solu-

tion (see operating manual of

the measuring transmitter)

14 ba77055e01 05/2014

Technical data TetraCon

700-...Ex

7 Technical data

7.1 General features

Measuring range 10 µS/cm ... 1000 mS/cm at 0 °C ... + 40 °C

Measuring principle Four-electrodes measurement

Temperature sensor Integrated NTC 30 (30 k / 25 °C)

Dimensions

Weight

Material

Connection cable

Applicable guidelines

and norms

Length 196 mm

(without screwed cable gland)

Shaft diameter 40 mm

Approx. 660 g (without sensor connection cable)

Sensor head PVC, epoxy (filler)

Electrodes, housing of the tem-

perature sensor

Graphite

Shaft POM, conductive

Closing head POM, conductive

Protection ring POM, conductive

Cable screw joint POM

Cable coating PUR

Length Depending on variant:

–1.5m

–7.0m

–15.0m

Diameter 8.8 mm

Smallest allowed

bend radius

Permanent bend: 180 mm

Short time bend: 90 mm

Connection Screw plug, 7 poles (IP 65)

General safety – EN 60079-0

– EN 60079-11

– EN 61010-1

TetraCon

700-...Ex Technical data

ba77055e01 05/2014 15

7.2 Explosion protection

Explosion protection

characteristics

See document ba77057y (available in numerous languages).

7.3 Electrical data

Type of connection Cable with free stranded wire ends

Terminal assignment

WARNING

All voltages must be protective low voltages or safety

extra low voltages without hazard of contact according to

E 61010-1 or UL 3111-1.

Wire color Assignment

Pink Current electrode I1 (ring)

Gray Voltage electrode U1

Yellow Voltage electrode U2

Green Current electrode I2 (ring)

White NTC

Brown NTC

Transparent Shield

16 ba77055e01 05/2014

Technical data TetraCon

700-...Ex

7.4 Measurement conditions

Temperature range

Depth of immersion

Min. 30 mm

Operating position Any

Approach flow not required

Pressure resistance Conductivity measuring cell including connection cable:

7-pole screw plug:

The TetraCon

700-...Ex meets the requirements according to article

3(3) of the directive 97/23/EC ("pressure equipment directive").

7.5 Characteristic data on delivery

Temperature

measurement

Cell constant

Measuring medium 0 °C ... + 40 °C

Storage/transport - 5 °C ... + 65 °C

(storage in air recommended)

Max. allowed overpressure 10

Pa (10 bar)

Type of protection IP 68 (106

Pa or 10 bar)

Type of protection IP 65

Sensor accuracy ± 0.2 K

Response time t

(90 % of the final value display after)

<60s

(95 % of the final value display after)

< 120 s

In free solution, i.e. base and side

clearance > 5 cm K = 0.917 cm

-1

± 1.5 %

In a flow-thru system,

e.g. EBST 700-DU/N K = 0.933 cm

-1

± 1.5 %

What can Xylem do for you?

We're a global team unified in a common purpose: creating innovative solutions to

meet our world's water needs. Developing new technologies that will improve the way

water is used, conserved, and re-used in the future is central to our work. We move,

treat, analyze, and return water to the environment, and we help people use water

efficiently, in their homes, buildings, factories and farms. In more than 150 countries, we

have strong, long-standing relationships with customers who know us for our powerful

combination of leading product brands and applications expertise, backed by a legacy

of innovation.

Xylem Analytics Germany GmbH

Dr.-Karl-Slevogt-Str. 1

82362 Weilheim

Germany

Xylem Analytics Germany

Sales GmbH & Co. KG

WTW

Dr.-Karl-Slevogt-Str. 1

82362 Weilheim

Germany

Tel.:

Fax:

E-Mail

Internet:

+49 881 183-325

+49 881 183-414

wtw[email protected]

www.WTW.com

Service address:

For more information on how Xylem can help you, go to xyleminc.com.

wtw TetraCon 700-...Ex Series Instrucțiuni de utilizare

Marca: wtw

Model: TetraCon 700-...Ex Series

Tip: Instrucțiuni de utilizare

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