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wtw Turb 550, Руководство по эксплуатации

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Operation

28

Calibration

How to calibrate your measuring instrument:

1 Press the 

 key. The Ident display and the Cal dis-

play appear. The number 1000 appears in the lower 
display line

2 Insert the 1000 NTU calibration standard in the cell 

shaft

3 Align the cell and wait for a stable measured value

4 Press the 

 key.

The Store display flashes for approximately 3 sec-
onds. The number 1000 (NTU) appears in the upper 
display line. The number 10.0 (NTU) appears in the 
lower display line

5 Insert the 10.0 NTU calibration standard in the cell 

shaft

6 Align the cell and wait for a stable measured value

Содержание Turb 550

Страница 1: ...ba41112e03 04 2003 Turb 550 Turb 550 IR ba41112e Operating Manual Turbidity Measuring Instrument...

Страница 2: ...of purchase The instrument warranty extends to manufacturing faults that are determined within the period of warranty The war ranty excludes components that are replaced during main tenance such as l...

Страница 3: ...1 Marking and aligning cells 17 4 1 2 Venting the sample 19 4 2 Measuring turbidity 20 4 2 1 Standard measurement 20 4 2 2 Measuring turbidity using the flow through vessel accessory 23 4 3 Calibratio...

Страница 4: ...List of contents 4 5 2 2 Cleaning the cells 40 5 3 Disposal 41 6 What to do if 43 7 Technical data 47 8 Accessories options 49 9 Abbreviations and index 51...

Страница 5: ...ethod used in the Turb 550 IR corresponds to the ISO 7027 DIN 27027 The measuring method used in the Turb 550 follows the US EPA construction recommen dations 1 2 3 4 5 Short instructions Keypad Displ...

Страница 6: ...1 1 Keypad l key Store output the measured value l key Increase values Select settings l key Reduce values Select settings l key Call up terminate calibra tion procedure l key Switch measuring instru...

Страница 7: ...display in NTU operating guide Lower display line Stored meas value operating guide error messages Status displays Operating guide on setting up LoBat Request to change the battery 1 2 3 RS232 interf...

Страница 8: ...Overview 8...

Страница 9: ...e instrument Target group This measuring instrument was developed for use in the lab oratory Thus we assume that as a result of their profes sional training and experience the operators will know the...

Страница 10: ...operating manual are followed The smooth functioning and operational safety of the instru ment can only be guaranteed under the climatic conditions specified in the chapter TECHNICAL DATA If the instr...

Страница 11: ...rator The operator of this measuring instrument must ensure that the following laws and guidelines are observed when using dangerous substances l EEC directives for protective labor legislation l Nati...

Страница 12: ...Safety 12...

Страница 13: ...g cloths 3 1 Initial commissioning Inserting the card with the short instructions The first time the instrument is commissioned you must in sert the card that was delivered containing the short instru...

Страница 14: ...power supply 1 Plug the original WTW plug in power supply 1 into the socket 3 of the measuring instrument 2 Plug in the appropriate adapter 2 to the plug in pow er supply 3 Connect the plug in power s...

Страница 15: ...and protect it against intensive light and heat 2 Press the key All the display elements appear briefly on the display The measuring instrument then switches automati cally to the measuring mode A mea...

Страница 16: ...Commissioning 16...

Страница 17: ...e cell and the light protection cap together only in this way is the cell marked 1 The cell must be closed with the black light protection cap Make sure that the outside of the cell is clean dry and f...

Страница 18: ...the marker pin on the casing of the cell shaft 1 Insert the cell in the cell shaft on the turbidity measur ing instrument 2 Slowly rotate the cell through one complete rotation by 360 3 Watch the dis...

Страница 19: ...ause sudden changes in the measured values whereas smaller air bub bles are recorded by the instrument as turbidity Therefore avoid or remove air bubbles Avoiding or remov ing air bubbles l During sam...

Страница 20: ...ly hold the cells at the top or by the black light protection cap Measuring How to measure the turbidity of a sample 1 Switch on the instrument 2 Wait for at least 30 minutes to allow for the warm up...

Страница 21: ...ompare more than one sample press the key The last measured val ue is stored and appears in the lower display line The upper display line continues to show the current measured value If the print func...

Страница 22: ...the print function is switched on and a printer or PC is con nected and switched on the time date and measured value will be output by pressing 13 17 13 18 15 JAN 1999 15 JAN 1999 19 09 NTU 756 NTU S...

Страница 23: ...nother quickly and easily Any inter ference effects caused by air bubbles are reduced Besides you do not have to use balanced cells for comparative mea surements as always the same cell is used Prepar...

Страница 24: ...into the base of the flow through vessel 5 8 Make sure that the outside of the cell is clean dry and free of fingerprints 9 Insert the flow through vessel 5 with the cell at the bottom into the cell...

Страница 25: ...Operation 25 Note The flow through vessel can remain installed until the next calibration...

Страница 26: ...ature before filling 1 Remove the cover from the flow through vessel 2 Slowly pour approximately 500 ml sample into the container of the flow through vessel The sample runs through the vessel into the...

Страница 27: ...at they have not passed the expiry date Note Basically for measurements according to DIN ISO and also for standard methods calibrations with formazin are re quired See Application report 998 255 HERST...

Страница 28: ...000 NTU calibration standard in the cell shaft 3 Align the cell and wait for a stable measured value 4 Press the key The Store display flashes for approximately 3 sec onds The number 1000 NTU appears...

Страница 29: ...ng a calibration using one or two standards press the key and the measuring instrument returns to its normal mea suring mode l After a 1 point calibration measuring is only possible in 7 Press the key...

Страница 30: ...quence If the print function is switched on and a printer or PC is con nected and switched on the following printout or display is output DATE 15 JAN 1999 13 20 Current date and time LAST CAL 17 DEC 1...

Страница 31: ...e 1200 2400 4800 9600 only if the print func tion is active The settings remain stored in the instrument Note Settings are made in this measuring instrument following a compelled guidance If you have...

Страница 32: ...Day Month message appears and the number of the month flashes 4 To change the month press or and confirm by pressing The number of the day flashes 5 To change the day press or and confirm by pressing...

Страница 33: ...to on On or off OFF press or until the required setting is displayed 10 Confirm by pressing If the print function was switched off the instrument returns to its normal measuring mode If the print func...

Страница 34: ...d To reset the settings proceed as follows The settings are reset to the status they had on delivery The instrument continues to operate in the normal measuring mode The date and time must be set agai...

Страница 35: ...1 Connecting the printer 4 5 2 Printing Note Printing can only function if the measuring instrument is switched on and the print function is active on In addition the correct Baud rate must be set up...

Страница 36: ...U 756 NTU DATE 15 JAN 1999 13 20 Current date and time LAST CAL 17 DEC 1998 17 03 Date and time of the last cali bration CALIBRATION INTERVAL 30 DAYS Calibration in terval 30 days CALIBRATION POINTS C...

Страница 37: ...odule 1 Switch off the measuring instrument and disconnect it from the mains 2 Take out the lamp module 1 Press the two grips gently together and carefully pull out the lamp mod ule until the plug in...

Страница 38: ...in front of the lamp and that they are not in the way of the lamp module 6 Insert the new lamp module lamp symbol must be vertical so that it locks into place and a click can be heard 7 Connect the in...

Страница 39: ...o that the positive poles point towards the clip of the battery holder 10 Reattach the underside of the housing and guide the plug in connector for the lamp module through the opening on the side Tigh...

Страница 40: ...e cells Cells used for measuring turbidity must always be clean Therefore clean them regularly Note Scratches in the glass change the optical characteristics of the cell and falsify the measured value...

Страница 41: ...blic of Germany We would ask end consum ers in other countries to follow their local statutory provi sions Note In compliance with 14 of the battery regulation we would like to point out that this ins...

Страница 42: ...Maintenance cleaning disposal 42...

Страница 43: ...nt off Switch the instrument on again and repeat the calibration using the correct calibration standard Cause Remedy The lamp is defective Replace the lamp module Cause Remedy The instrument is measur...

Страница 44: ...egulate the temperature of the sample before measuring Air bubbles in the cell Remove any air bubbles Measuring instrument needs to be calibrated Calibrate the measuring instrument Cause Remedy The en...

Страница 45: ...a fault cannot be remedied send the instrument to WTW Cause Remedy No energy supply Connect the plug in power supply with the measuring instrument and the mains power supply The instrument does not re...

Страница 46: ...What to do if 46...

Страница 47: ...gory II Output 15 VDC 1 A Backup batteries 2 x 3 0 V lithium battery CR3032 Battery lifetime Approx 3 years Depth 290 mm Width 252 mm Height 100 mm Weight 1 kg 10 40 C Nephelometric Turb 550 Tungsten...

Страница 48: ...0 01 NTU Under 3 seconds Automatic 1 3 point calibration Unidirectional RS232 output CE cETLus l Automatic self check l Integrated real time clock l Battery powered clock and settings for 3 years wit...

Страница 49: ...ty measuring instruments D Turb 600600 Empty cells for turbidity mea suring instrument 3 pieces Cell Turb SET 600601 Cell holder for 6 cells KS Turb 600602 Spare lamp module for Turb 550 Lamp Turb 550...

Страница 50: ...Accessories options 50...

Страница 51: ...is chapter contains additional information and orientation aids Abbreviations The list of abbreviations describes displays and abbrevia tions that may be encountered when using the measuring in strume...

Страница 52: ...g Measuring instrument measures at the highest possible resolution Auto Automatic measuring mode Cal Calibration E1 E5 Error message see WHAT TO DO IF NTU Nephelometric turbidity units FTU Formazin tu...

Страница 53: ...messages 43 F flow through vessel 23 formazin calibrations 27 I initial commissioning 13 initialize 34 K keypad 6 M mark a cell 17 measuring accuracy adjustment 27 measuring accuracy check 27 measuri...

Страница 54: ...Abbreviations and index 54...

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