ProMinent DULCOTEST DT4B Bedienungsanleitung

DULCOTEST® DT4B

Photometer

Operating manual

A0946

Target group: instructed personnelPart number: 985614 BA DT 052 07/16 EN

Please carefully read these operating instructions before use. · Do not discard.

The operator shall be liable for any damage caused by installation or operating errors.

The latest version of the operating instructions are available on our homepage.

General non-discriminatory approach In order to make it easier to read, this

document uses the male form in

grammatical structures but with an

implied neutral sense. It is aimed

equally at both men and women. We

kindly ask female readers for their

understanding in this simplification of

the text.

Supplementary information

Please read the supplementary information in its entirety.

Information

This provides important information relating to the correct operation of the

unit or is intended to make your work easier.

Warning information

Warning information include detailed descriptions of the hazardous situation.

The following symbols are used to highlight instructions, links, lists, results and

other elements in this document:

More symbols

Symbol Description

Action, step by step.

⇨Outcome of an action.

Links to elements or sections of these instructions or other

applicable documents.

nList without set order.

Supplemental instructions

Symbol Description

[Button]

Display element (e.g. indicators).

Operating element (e.g. button, switch).

‘Display

/GUI’

Screen elements (e.g. buttons, assignment of function keys).

CODE Presentation of software elements and/or texts.

Supplemental instructions

Table of contents

1 General Information................................................................................... 5

1.1 Scope of delivery............................................................................... 6

1.2 Instructions for use............................................................................ 8

1.3 Operations carried out on the device............................................... 11

2 DT4B commissioning............................................................................... 12

2.1 Commissioning................................................................................ 12

3 Operating Menu....................................................................................... 15

3.1 Operating Menu Options.................................................................. 15

3.2 Operating instructions...................................................................... 16

3.3 Error messages............................................................................... 16

4 Analysis methods..................................................................................... 17

4.1 Procedural instructions when using liquid reagents......................... 17

4.2 Quantitative determination using liquid reagents............................. 19

4.3 Procedure instructions when using tablets...................................... 23

4.4 Quantitative determination using tablets.......................................... 24

5 Calibration ............................................................................................... 31

6 Technical data......................................................................................... 34

7 Consumables and Spare Parts................................................................ 36

8 Standards Complied with and Declaration of Conformity........................ 37

9 Index........................................................................................................ 38

Table of contents

1 General Information

WARNING!

Danger from hazardous sub‐

stances!

Possible consequence: Fatal or

very serious injuries.

Please ensure when handling

hazardous substances that you

have read the latest safety data

sheets provided by the manufac‐

ture of the hazardous substance.

The actions required are

described in the safety data sheet.

Check the safety data sheet regu‐

larly and replace, if necessary, as

the hazard potential of a sub‐

stance can be re-evaluated at any

time based on new findings.

The system operator is respon‐

sible for ensuring that these safety

data sheets are available and that

they are kept up to date, as well

as for producing an associated

hazard assessment for the work‐

stations affected.

General Information

1.1 Scope of delivery

The following components are included as standard:

Description Quan‐

tity

nCase, blue with blue fasteners

– with ProMinent sticker, Dulcotest DT4B photometer, code

1039318

– and danger symbol

Foam insert for the case 1

Cover foam for the case 1

nPhotometer DT4B

– chlorine, chlorine dioxide, chlorite

– Battery compartment lid with O-ring

Screwdriver with clip, red 1

Countersunk screws 4

Batteries, 1.5 V alkali-manganese, type AA 4

Round cuvettes, 10 ml, d = 24 mm, h = 48 mm 3

Lid for round cuvette, 24 mm, grey 3

Sealing rings, grey 3

Syringe, 10 ml 1

Plastic mixing rod, 10 cm long 1

Cleaning brush 1

Measurement beaker, plastic, 100 ml 1

Disposable cuvette, 13.5 mm layer depth

Operating instructions for Dulcotest DT4B 1

DPD-1 tablets 100

DPD-3 tablets 100

General Information

Description Quan‐

tity

Chlorine dioxide No. 1 tablets 250

Chlorine dioxide No. 2 tablets 250

Glycine tablets 20

General Information

1.2 Instructions for use

–

Request the safety data sheets.

–

Reagents are intended for chemical analysis and access to them by

unauthorised persons must not be permitted.

–

You must dispose of reagent solutions properly.

–

Observe the application possibilities, analysis instruction and matrix

effects of the methods.

1. You must thoroughly clean the cuvettes, lids and stirring rod after each

analysis to avoid carry-over errors.

Even slight reagent residue can lead to incorrect measurement results.

For cleaning use the supplied brush.

If the fully reacted water sample is left for any length of time it may pro‐

duce stubborn coloured deposits, which you can remove using dilute (= 4

%) hydrochloric acid.

2. The outer walls of the cuvettes must be clean and dry before the analysis

is carried out. Fingerprints or water droplets on the light-entry surfaces of

the cuvette will result in faulty measurements. The cuvette should there‐

fore be wiped clean with a soft paper tissue (paper handkerchief) before

carrying out the measurement.

3. The zero correction and the analysis must both be carried out using the

same cuvette, as the cuvettes may have slightly varying tolerances.

General Information

A0937

Fig. 1: Cuvette positioning (Ø 24 mm):

I. Seal II. Marking with the white triangle

4. For the zero correction and test, the cuvette must be positioned in the

sample chamber in such a way that the marking with the white triangle (II.)

points towards the housing marking.

5. You must carry out the zero correction and test with the cuvette lid closed.

You must provide the cuvette lid with a sealing ring (I.) to prevent the

entrance of light into the sample chamber.

6. Formation of bubbles on the inside walls of the cuvette will result in faulty

measurements. Should this happen, seal the cuvette with the cuvette lid

and tip it back and forth to dissolve/remove the bubbles before carrying

out the test.

7. It is important to prevent water getting into the sample chamber because

this leads to incorrect measurement results.

General Information

8. Dirt in the transparent sample chamber leads to incorrect measurement

results. The light entry surfaces should be checked at regular intervals and

cleaned as necessary.

Standard spectacle cleaning cloths and cotton buds are suitable for

cleaning.

9. Pronounced differences in temperature between the photometer and the

surroundings can lead to incorrect measurements, e.g. due to the forma‐

tion of condensation in the sample chamber and on the cuvette.

10. Protect the device from direct sunlight.

A0938

Fig. 2: Correct filling of the cuvette: Left = correct / right = incorrect

11. Fill the cuvette as shown in Fig. 2.

12. Insert the reagent tablets directly from the blister pack into the water

sample, without touching them with your fingers.

13. After use immediately close the dropping bottles containing the liquid

reagents by closing them with the screw caps of the same colour.

14. You must observe the sequence for the addition of reagents without fail.

General Information

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