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42

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.

Copyright

©

Weilheim 2010, WTW GmbH

Reproduction in whole - or even in part - is prohibited without
the express written permission of WTW GmbH, Weilheim.
Printed in Germany.

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Содержание Turb 355 IR/T

Страница 1: ...Turb 355 IR T ba75454e03 09 2010 41 Operating Manual Portable turbidimeter...

Страница 2: ...rating 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...

Страница 3: ...4 1 2 Venting the sample 57 4 2 Measuring turbidity 58 4 3 Calibration 61 4 3 1 Basic information on calibration 61 4 3 2 Calibration procedures 61 4 3 3 Preparing the calibration 62 4 3 4 Three poin...

Страница 4: ...Inhaltsverzeichnis 44...

Страница 5: ...urements to be carried out on individual samples The measuring method used corresponds to DIN EN ISO 7027 Turb 355 IR or US EPA 180 1 Turb 355 T 1 Cuvette in the cuvette shaft 2 Marking ring for calib...

Страница 6: ...g display elements 1 Calibration symbol instrument in Calibration mode 2 Error symbol flashes when an error occurs 3 Battery symbol is illuminated if the battery needs to be changed 4 Measuring unit N...

Страница 7: ...keypad with the following 5 keys Key Function Switch measuring instrument on off Select calibration standard Start measurement press and hold index the cell release again start measurement or calibra...

Страница 8: ...Overview 48...

Страница 9: ...e vicinity of the measuring instrument Target group The measuring instrument was developed for measurements on site and in the laboratory We assume that due to their professional training and experien...

Страница 10: ...tion and operating safety The smooth functioning and operational safety of the measuring instrument can only be guaranteed if the generally applicable safety measures and the specific safety instructi...

Страница 11: ...a lengthy period of time z is visibly damaged z no longer operates as described in this manual If you are in any doubt please contact the supplier of the instrument Obligations of the operator The pu...

Страница 12: ...Safety 52...

Страница 13: ...ries type AAA Micro in the meter 3 2 Initial commissioning Switching on Note The meter was calibrated and tested by the manufacturer before delivery Consequently you can begin to measure immediately H...

Страница 14: ...strument displays moving dashes prior to displaying a stable measured value After approx 8 11 seconds the measured value is displayed Example of a measured value display Energy saving feature The inst...

Страница 15: ...nec essarily soil the meter and your working environment The measurement accuracy is ensured by aligning the cuvettes Scratched cuvettes have to be replaced Cleaning the cuvette The cuvette must be ab...

Страница 16: ...at it clicks into place 4 Slowly rotate the calibration standard by one complete rotation by 360 in small steps and hold the 1 key depressed while doing so After each step wait for a moment until the...

Страница 17: ...es z During sampling ensure all movement is kept to a minimum z If necessary vent the sample ultrasonic baths heating or adding a surface active substance to reduce surface tension 1 Insert the marked...

Страница 18: ...re see section 5 2 2 CLEANING THE CUVETTES Only hold the cuvettes by the top or by the black light protection cap Measuring This is how to measure the turbidity of a sample using the Turb 355 IR T 1 S...

Страница 19: ...clicks into place 7 Align the cuvette Slowly rotate the cuvette by one complete rotation by 360 in small steps and hold the 1 key depressed while doing so After each step wait for a moment until the...

Страница 20: ...measuring range is exceeded If the measured value is outside the measuring range of the Turb 355 IR T 1100 flashes on the display Switching the meter on off To switch the meter off press the 1 key CAL...

Страница 21: ...the entire measuring range according to the specified calibration program section 4 3 4 z Partial user defined calibration over a limited range section 4 3 5 z Single point calibration This is a spec...

Страница 22: ...ing range must lie between two calibration points z If there are more possible calibration points between the start and end of the calibration interval they must be used 4 3 3 Preparing the calibratio...

Страница 23: ...ep you do not resume the calibration within 5 minutes the instrument automatically switches itself off The data calibrated up to this point remain stored and will be used To calibrate your measuring i...

Страница 24: ...ly displays the 1000 Then the prompt to insert the second calibration standard is displayed 5 Insert the 10 0 NTU FNU calibration standard in the cuvette shaft so that it clicks into place 6 Press the...

Страница 25: ...int and will use them for future measurements 7 Insert the 0 02 NTU FNU calibration standard in the cuvette shaft so that it clicks into place 8 Press the 1 key and align the cuvette as described on p...

Страница 26: ...4 Insert the selected flashing calibration standard in the cuvette shaft so that it clicks into place 5 Press the 1 key and align the cuvette as described on page 55 After releasing the 1 key a 30 or...

Страница 27: ...calibration program and returns to the measuring mode Terminating the calibration When you want to terminate the calibration after a calibration step is finished press the g key The instrument returns...

Страница 28: ...Operation 68...

Страница 29: ...with the specified accuracy Battery symbol permanently illuminated A battery exchange is immediately necessary when the battery symbol h is displayed permanently In this case change the batteries imm...

Страница 30: ...f the battery compartment 2 5 Remove the old batteries from the battery compartment 6 Insert new batteries 3 While doing so check that the poles are correct according to the diagram in the battery com...

Страница 31: ...solvents as these can damage the housing Remove any splashes immediately 5 2 2 Cleaning the cuvettes Cuvettes used for measuring turbidity must be clean dry and free of fingerprints Therefore clean t...

Страница 32: ...nd the instrument back for service The original packing prevents the instrument from being damaged during transport Measuring instrument To finally dispose of the instrument take it to a collection po...

Страница 33: ...uitable for the measurement Cause Remedy Cuvette contaminated Clean the cuvette Cuvette scratched Replace the cuvette Cuvette misted up Adjust the temperature of the sample before measuring Air bubble...

Страница 34: ...or too old Check that you have used the correct standards and whether the standards are not too old If necessary repeat calibration Restore the factory calibration Press and hold the 8key now press t...

Страница 35: ...libration Turb 355 IR Nephelometric acc to DIN EN ISO 7027 Turb 355 T Nephelometric according to US EPA 180 1 Turb 355 IR Infrared LED Turb 355 T White light tungsten lamp In the range 0 01 99 99 NTU...

Страница 36: ...of hand held turbidimeter Set carrying case Total weight of set 1 22 kg Test certificates CE Storage 25 C 65 C Operation 0 C 50 C Batteries 4 x alkali manganese size AAA Micro Lifetime Approx 5000 me...

Страница 37: ...ries Options Description Model Order no Set of calibration standards for Turb 355 IR T 0 02 10 0 1000 NTU FNU Kal Kit P Turb 355 IR T 600 547 Set of empty cuvettes 3 pieces for Turb 350 355 IR or Turb...

Страница 38: ...Accessories Options 78...

Страница 39: ...tional information and orientation aids Abbreviations The list of abbreviations explains the abbreviations that appear on the display or when dealing with the instrument Index The index will help you...

Страница 40: ...80 Abbreviations Cal Calibration ERR Error message see chapter 6 WHAT TO DO IF FNU Formazine nephelometric unit LCD Liquid Crystal Display NTU Nephelometric turbidity units rd Read Calibration step a...

Страница 41: ...61 Changing the batteries 69 Checking the measuring accuracy 61 Cleaning agent 71 D Display elements 46 E Energy saving feature 54 Error messages 73 Error symbol 46 I Indexing calibration standard 57...

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Страница 44: ...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...

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