Palintest Compact Ozone Meter Bedienungsanleitung

Table of Contents

1GENERAL INFORMATION......................................... 3

Introduction to Palintest Photometers............................ 3

Kit Contents ................................................................ 4

Instrument Layout ....................................................... 5

2 BACKGROUND INFORMATION ................................ 6

Introduction to Colorimetric Measurement. .................... 6

Blanks and Sam les..................................................... 8

Taking a Reading......................................................... 8

Care and Maintenance ................................................. 9

Viewing the Instrument Memory ..................................10

Backlight O eration ....................................................10

3 TE T PROCEDURE ................................................ 11

Ozone........................................................................12

4 IN TRUMENT ......................................................... 13

Technical S ecification ................................................15

5TROUBLE HOOTING .............................................. 17

Chemistry Troubleshooting ..........................................17

Com liance ................................................................18

Sam le Dilution and Collection.....................................19

6 REORDER CODE and ACCE ORIE .................... 20

IN T.40

1 GENERAL INFORMATION

Introduction to Palintest Photometers

Thank you for urchasing this Palintest roduct.

Palintest instruments and reagents are renowned as

being sim le to use, whilst roviding ra id and reliable

results for the testing of water. Our instruments are of

the highest quality and fully water roof.

Palintest’s ex erience, built-u over the last 50 years,

is the reason why our instruments and reagents are

used in laboratories, treatment lants, leisure facilities

and industrial remises throughout the world.

Our roducts are ackaged carefully and the roduct

should reach you in the state it left our factory; if this

roduct has reached you in a state that is less than

satisfactory, lease contact your local Palintest branch

or your local distributor.

This booklet describes the best way to use Palintest

roducts, and rovides instructions for the range of

water tests that can be erformed using this instrument.

Palintest instruments are calibrated for Palintest

reagents. To guarantee the high accuracy and

performance that our instruments give, you must

ensure that only Palintest reagents are used with

Palintest instruments. Failure to do so can lead to

erroneous results.

Kit Contents

These instructions are designed for use with the

Palintest Ozone meter.

The kit contains :-

Ozone Instrument

Instrument Instructions

Crushing Rods

Test Tube Brush

Photometer Tubes

Reagents :-

DPD No 4 Tablets

For re-ordering codes and accessories, please

see ection 6.

Instrument Layout

Test Tube holder

Screen

“Read Sam le” button

“Menu” button

“Blank Sam le” button

“On/Off” button

2 BACKGROUND INFORMATION

Introduction to Colorimetric Measurement.

Palintest tests are based on measuring the intensity of

colours roduced by Palintest reagents and using

Palintest hotometers to measure that intensity of colour.

This is colorimetry and can be defined as any technique

used to evaluate an unknown colour in reference to

known colours.

To avoid subjective measurement between test sam les

and colour standards, a colorimeter can be used for

quantitative measurement of the amount of coloured light

absorbed by a sam le (with reagents added) in reference

to a untreated sam le (blank).

White light is made u of many different wavelengths of

light.

A colorimeter asses a white light beam through an

o tical filter which transmits only one articular band

of wavelength of light to the hotodetector where it is

measured.

The difference in the amount of coloured light transmitted

by a colourless sam le (blank) and the amount of coloured

light transmitted by a coloured sam le is a measurement

of the amount of coloured light absorbed by the sam le.

The use of filters im roves the sensitivity of this

rocess and choice of the correct o tical filter (and,

therefore, the correct wavelength) of light is im ortant.

It is interesting to note that the filter that gives the

most sensitive calibration for a test factor is the

com lementary colour of the test sam le. For exam le,

the chlorine test roduces a ink colour ro ortional to

the chlorine concentration in the sam le (the greater

the chlorine concentration, the darker the ink colour).

In this case, a green filter gives the greatest sensitivity

as a inkish-red solution absorbs mostly green light.

Palintest hotometers calculate and then dis lay the test

results directly in milligrams er litre (mg/l) of the test

factor, by com aring the amount of absorbed light to

the calibration data rogrammed into the instrument.

Photodetector

Blue Solution

(450 - 500nm)

Red Filter

(625 – 635nm)

Red light only passes

through the filter. All

other light is absorbed.

ncident

Wavelengths of blue light

plus s

mall quantities of red

light pass through the

solution.

Blanks and amples

Palintest hotometers use a BLANK tube to set the

instrument to blank and a SAMPLE tube to take the reading.

A BLANK tube is a test tube filled with untreated water

sam le. A SAMPLE tube is a test tube containing the sam le

to which reagents have been added in accordance with the

test rocedure described.

The blank setting is held in memory. It is not necessary to reset

the blank each time a reading is taken if the water sam les to

be tested are from the same body of water and the conditions

of use are the same. The blank setting can be confirmed if

necessary by taking a test reading on the blank tube.

Taking a Reading

1 Press the ‘on/off’ button to start the unit.

2 Press the ‘menu’ button until the test you wish to erform

is indicated on the screen.

3 Insert your blank tube and ress the ‘blank sam le’

button.

4 An image dis laying a blank tube will be dis layed on

screen. When this is re laced by 0.00 the instrument is

finished blanking and ready to take a reading.

5 Remove your blank tube and re lace it with the sam le

tube. Press the ‘Read Sam le’ button to take a reading.

The result will be dis layed on screen in mg/l.

Care and Maintenance

The handling of hotometer tubes is im ortant to

ensure continuing accuracy. Scratches, finger- rints

and water dro lets on the tube or inside the light

chamber can cause inaccurate results. It is im erative

that the tubes and light chamber are clean and dry.

The glassware must be clean and defect-free. Scratches

and abrasions will ermanently affect the accuracy of the

readings. Tubes can be acid washed eriodically.

Here are some hints on kee ing the hotometer clean,

free from contamination and in good working order :-

1 Pre are your work lace before use. Make sure that

you have enough s ace to work with the hotometer

and with the reagent systems.

2 Do not our out sam les or re are the tests

directly over the instrument.

3 Always ca the test tubes after re aring the blank

and test sam le.

4 Wi e test tubes on a clean tissue to remove dri s

or condensation before lacing in the hotometer.

5 Do not leave tubes standing in the hotometer test

chamber. Remove the tubes immediately after each test.

6 Immediately wi e u any dri s or s illages onto the

instrument or into the test chamber with a clean tissue.

7 Kee the instrument clean. Clean the test chamber

regularly using a moistened tissue or cotton bud.

8 Kee the instrument in a clean, dry lace when it is

not in use. Kee it on a clean, dry bench away from

chemicals, lace it in a storage cu board or kee it in

a carrying case.

Viewing the Instrument Memory

To view the revious results (10 results are stored

within the instrument memory), hold the ‘menu’ button

down for at least three seconds whilst the dis lay

showing the selected test or result is on the screen.

To scroll through the 10 different results, simply

press the ‘menu’ button. To exit the results

menu, press the ‘menu’ button again for at least

three seconds.

Backlight Operation

The backlight can be turned on and off by holding the

‘On/Off’ button for a two second eriod during ower on.

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