Wtw TriOxmatic 701 Manual de usuario

D. O. probe

TriOxmatic®701

ba25308e06 07/2015

Operating manual

Accuracy when

going to press

The use of advanced technology and the high

quality standard of our instruments are the result of a

continuous development.

This may result in differences between this operating

manual and your instrument. Also, we cannot guarantee that

there are absolutely no errors in this manual. Therefore, we

are sure you will understand that we cannot accept any legal

claims resulting from the data, figures or descriptions.

Reprinting - even as excerpts - is only allowed with the

explicit written authorization of WTW GmbH, Weilheim.

Printed in Germany.

Contents

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Overall view of the D. O. probe TriOxmatic®701 . . . 5

1.2 Construction of the D. O. probe TriOxmatic®701 . . . 6

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . 8

3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Commissioning / Readiness for measuring . . . . . . . 11

3.3 Recommended fields of application . . . . . . . . . . . . 11

3.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.5 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.6 Exterior cleaning and function check . . . . . . . . . . . . 12

3.7 Cleaning with normal operation

(e.g. domestic sewage) . . . . . . . . . . . . . . . . . . . . . . 14

3.8 Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4 Maintenance, cleaning, disposal, spare parts 19

4.1 Replacing the electrolyte solution and membrane

head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2 Cleaning the electrodes . . . . . . . . . . . . . . . . . . . . . . 25

4.2.1 Cleaning the gold working electrode . . . . . . 27

4.2.2 Cleaning the silver counter electrode . . . . . 28

4.2.3 Cleaning the counter electrode using the RA

600 cleaning cap . . . . . . . . . . . . . . . . . . . . . 28

4.2.4 Cleaning the counter electrode in the glass

beaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.3 Refilling the membrane head . . . . . . . . . . . . . . . . . 36

4.4 Checking whether the probe is zero current free . . 39

4.5 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

4.6 Maintenance and spare parts . . . . . . . . . . . . . . . . . 40

5 What to do if ... . . . . . . . . . . . . . . . . . . . . . . . . . 41

6 Recommended accessories . . . . . . . . . . . . . . 45

Contents

7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.1 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.2 Measuring conditions . . . . . . . . . . . . . . . . . . . . . . . . 49

7.3 Characteristics when delivered . . . . . . . . . . . . . . . . 50

7.4 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Overview

1Overview

1.1 Overall view of the D. O. probe

TriOxmatic®701

Overview

1.2 Construction of the D. O. probe

TriOxmatic®701

1 Protection cap (for transport and storage)

2 Protection hood

3 Membrane head, WP 25 i

4 Shaft

5 Closing head

6 Protection ring for G1 thread

7 Working electrode (gold cathode)

8 Counter electrode (silver anode)

9 Isolator

10 Reference electrode (silver bromide)

123 5

78910

Safety

2Safety

This operating manual contains basic instructions that you

must follow during the commissioning, operation and

maintenance of the probe. Consequently, all responsible

personnel must read this operating manual before working

with the probe. The operating manual must always be

available within the vicinity of the probe.

Target group The D. O. probe was designed for use with online

instrumentation - mostly in waste water treatment plants.

Thus, we assume that, as a result of their professional

training and experience, the operators will know the

necessary safety precautions to take when handling

chemicals.

Safety instructions In the various chapters of this operating manual, the

following safety instructions point out the different degrees

of danger:

Warning

indicates safety instructions which must be adhered to

precisely to rule out possible serious hazards to persons.

Caution

indicates safety instructions which must be adhered to

precisely to avoid slight injuries, damage to your equipment

or environmental harm.

Other Notes

Note

indicates notes that draw your attention to special features.

Note

indicates cross references to other documents, e. g.

operating manuals.

Safety

2.1 Authorized use

The technical specifications as given in chapter 7 TECHNICAL

DATA must be observed. Only the operation and running of

the probe according to the instructions given in this

operating manual is authorized.

Any other use is considered unauthorized.

2.2 General safety instructions

The probe left the factory in a safe and secure technical

condition.

Function and

operating safety

The smooth functioning and operational safety of the probe

can only be guaranteed if the generally applicable safety

measures and the specific safety instructions in this

operating manual are followed during operation.

The smooth functioning and operational safety of the probe

can only be guaranteed under the environmental and

electrical operating conditions that are specified in chapter

7 TECHNICAL DATA.

The temperature specified for using the probe (chapter 7

TECHNICAL DATA) has to be observed. Protect your probe

especially against frost or overheating.

Caution

The probe is only allowed to be opened by personnel

authorized by WTW.

Safety

Safe operation If safe operation is no longer possible, the probe must be

taken out of service and secured against inadvertent

operation!

Safe operation is no longer possible if the probe

has been damaged in transport

has been stored under adverse conditions for a lengthy

period of time

is visibly damaged

no longer operates as described in this manual.

If you are in any doubt, please contact the supplier of the

probe.

Obligations of the

purchaser

The purchaser of this probe must ensure that the following

laws and guidelines are observed when using dangerous

substances:

EEC directives for protective labor legislation

National protective labor legislation

Safety regulations

Safety datasheets of the chemical manufacturers.

Safety

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