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NOx-N

Maintenance

3 - 39

ba43110e05

01/2011

Caution

Standards must not be contaminated! A lid (orange) with suction tubing
is included within the scope of delivery of the calibration standards. Use
this lid for connecting the calibration standard. The suction tubing must
be rinsed with the standard to be used beforehand.

11

Pour a small amount of the first standard into a beaker.

12

Completely submerse the suction tube of the (orange) lid in the
beaker.

13

Screw the lid onto the first calibration standard.

14

Connect the standard with the specified concentration of NO3

-

to the connection for dist. H2O (red) and confirm with

3

.

The measurement is performed. The remaining time appears
on the display.

15

After the waiting time has expired, the prompt for the next
standard appears on the display:

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Summary of Contents for TresCon NOx-N

Page 1: ...r Nr 00110020 WTW 82362 Weilheim Made in Germany TresCon NOx N Reinigungslösung Cleaning Solution Ablauf V2 Thermoblock Probe Sample V1 H O dest H O dest 2 2 blau blue blau blue rot red Pumpschlauch Standard Probe blau blau blau Pump Tube Standard Sample blue blue blue rot red P3 P1 ...

Page 2: ...f WTW analyzers Detailed information on the previous experience required and the qualification of the user are given in the chapter SAFETY on page 2 1 in the TERMINAL volume of this manual Copyright Weilheim 2004 WTW GmbH Reprinting even as excerpts is only allowed with the explicit written authorization of WTW GmbH Weilheim Printed in Germany ...

Page 3: ...nual correction 4 12 2 8 Displaying changing the display parameter 4 16 2 9 Displaying changing the attenuation parameters 4 18 2 10 Displaying changing the interval program parameters 4 20 2 11 Displaying changing the AutoAdapt parameters 4 23 2 12 Displaying changing the measuring interval 4 25 2 13 Dilution parameter 4 27 3 Maintenance 5 1 3 1 Starting the AutoClean procedure 5 3 3 2 Filling th...

Page 4: ...witching Auto Flow on off 5 42 4 What to do if 6 1 4 1 Error messages 6 1 4 2 Messages 6 4 4 3 Service messages 6 5 5 Technical data 7 1 6 Appendix 8 1 6 1 Accessories and material subject to wear 8 1 6 2 Pressure sensors and messages 8 2 6 3 RS commands 8 3 6 4 Instrument activities 8 7 7 Index 9 1 ...

Page 5: ... NOx N measuring module highlighted in gray in Fig 1 1 Fig 1 1 Structure of the operating manual example Note Please read chapter 2 SAFETY in volume 1 TERMINAL of this operating manual before starting to work with the measuring module Structure of the operating manual Volume 1 TresCon Terminal Operating manual Volume 2 TresCon Module 1 Volume 3 TresCon Module 2 Volume 4 TresCon NOx N Terminal Tres...

Page 6: ...N can clean the entire analyzer system itself so that the user only has to perform a minimum amount of maintenance z AutoFlow The TresCon NOx N can monitor the entire analyzer system itself so it can measure fluid levels and provide early warnings and instructions to the operator to replace specific chemicals z AutoAdapt The TresCon NOx N optimizes its measuring interval according to the current c...

Page 7: ...ty Designation Valves 2 V1 V2 Pumps 1 P1 A Pressure sensors 2 P1 P2 Schematic diagram Standard sample pump tubing blue blue blue Reinigungslösung Cleaning solution H2O dest H2O dist Ablauf Outlet V3 V2 blau blue blau blue rot red rot red Probe Sample Thermoblock P1 P3 Configuration ...

Page 8: ...obe Sample V1 H O dest H O dest 2 2 blau blue blau blue rot red Pumpschlauch Standard Probe blau blau blau Pump Tube Standard Sample blue blue blue rot red P3 P1 Control LED Photometer block P1A V1 back side V2 back side View of the TresCon NOx N LED illuminates Meaning red continuous Malfunction of any type green continuous A service is being performed on the measuring module or a designation is ...

Page 9: ...olution blue Safety datasheets The current safety datasheets for all chemicals and solutions used can be found on the Internet under www WTW com 1 2 2 Retrofitting the TresCon NOx N This section is only necessary if the TresCon NOx N was purchased as a retrofit kit Preparatory activities Installing the TresCon NOx N in a measuring system can depending on the configuration necessitate various prepa...

Page 10: ...cation Installing the analyzer module Pumpschlauch Standard Probe blau blau blau Pumpschlauch Reagenz orange gelb orange Pump Tube Standard Sample blue blue blue Pump Tube Reagent orange yellow orange TresCon PO4 P Reinigungslösung Cleaning Solution H O dest H O dest 2 2 Standard B Standard B Reagenz Reagent Ablauf blau blue V3 V2 V4 Thermoblock Probe Sample V1 gelb yellow orange orange grün green...

Page 11: ...ow orange TresCon PO4 P Reinigungslösung Cleaning Solution H O dest H O dest 2 2 Standard B Standard B Reagenz Reagent Ablauf blau blue V3 V2 V4 Thermoblock Probe Sample V1 gelb yellow orange orange grün green blau blue rot red grün green P1 P2 P3 TresCon P04 P Ser Nr 00110010 WTW 82362 Weilheim Made in Germany TresCon A A TresCon N0x N Ser Nr 00110020 WTW 82362 Weilheim Made in Germany TresCon NO...

Page 12: ... NOx N in the frame see Fig 1 5 Fig 1 5 Numbers of the mounting slots Fig 1 6 Plug connector on the back of the TresCon NOx N 8 Plug the open cable connector of the TresCon NOx N into the open socket with the internal number of the mounting slot Cable connection Terminal 1 2 3 Internal number Mounting slots TresCon Plug ...

Page 13: ... 1 2 3 Length 0 80 m 1 00 m 1 20 m 10 Connect the open outlet tubing of the TresCon NOx N with the outlet adapter inside the enclosure see Fig 1 7 11 Also connect the ventilation tube to the adapter 12 Carefully swing the mounting frame back into place 13 Fix the mounting frame in place with the two screws A as shown in Fig 1 4 Connecting the outlet Tube dimensions Adapter for the outlet Inside en...

Page 14: ... TresCon NOx N measuring module is to be connected to an overflow vessel that is already installed measuring several parameters at a single sample catch location the overflow vessel at this position must have 3 permeate connecting pieces If this is not the case replace the overflow vessel If the TresCon NOx N is to measure a new sample location another overflow vessel must be mounted 1 Feed the pe...

Page 15: ... the consumables are nontransparent and are color coded Fig 1 9 Color coding 3 Push the tubes for dist H2O and cleaning solution through the holes drilled in the bottom of the enclosure Connecting the supply of consumables red blue red Dist H2O blue Cleaning solution Vent Color Coding ...

Page 16: ...th water and consult a doctor Caution Only use distilled water without any contamination softener or similar Dist H2O is also used for zero point calibration Contaminated dist H2O causes incorrect measurement results 4 Briefly shake the closed container with cleaning solution 5 Place a container of cleaning solution on the tray 6 Connect the blue screw cap with the blue suction hose see Fig 1 9 7 ...

Page 17: ...h on the TresCon at the power switch mounting stand The analyzer modules warm up The TresCon NOx N is ready for operation after it reaches the operating temperature 2 Measuring mode Select TresCon NOX N with 68 3 Call up the Parameters NOx N menu with 3 The main menu appears on the display 4 Select the Service menu item with 68 and confirm with 3 The service menu appears 5 Perform the Fill system ...

Page 18: ...oving the analyzer module from service 1 Perform the Empty system service see section 3 5 page 3 11 1 Perform the AutoClean service see section 3 1 page 3 3 2 Perform the AutoClean service again using deionized water instead of cleaning solution 3 Perform the Empty system service see section 3 5 page 3 11 Shutdown of up to 7 days Shutdown of more than 7 days ...

Page 19: ...arameters of the automatic cleaning function page 2 10 z Manual correction To adapt the measuring device by entering a comparison measured value page 2 12 z Display Selecting the dimensions and citation form page 2 16 z Attenuation To parameterize the integrated low pass filter page 2 18 z Interval program To select the intervals of the interval program page 2 20 z AutoAdapt To select the paramete...

Page 20: ...Overview NOx N 1 16 ba43110e05 01 2011 ...

Page 21: ... The operating sequences are described explicitly for the Change mode If you want to display the parameter proceed to the operating step Selecting the change mode of the instructions and instead select the Presentation of data mode Caution If you select the Presentation of data mode the measuring module continues to run in the background If you select the Change mode after the identification numbe...

Page 22: ...Operation NOx N 2 2 ba43110e05 01 2011 Note Further menu items appear if you move the cursor further down or up in the selection list 3 Select further menu items with 6 ...

Page 23: ...play only appears on the screen during measuring after calibration or after the Stop mode Otherwise only the measured value is displayed Duration Approx 1 minutes Discontinuous measurement The measuring procedure consists of a sequence of several steps that are listed in the following overview Subsequently the TresCon waits for the start of the next measuring procedure During this time the last me...

Page 24: ...mall format and an appropriate message is given 1 Measuring mode Select TresCon NOX N Move the arrow cursor with 68 to the display line of the measuring module NOx N 2 Press the key 2 The current process e g Stop Parameterizing is canceled the measuring procedure starts First Rinsing sample appears on the display 3 After the operating steps Rinsing sample and Reaction the current measured value ap...

Page 25: ... can select the times and intervals in the AutoCal menu see section 2 5 DISPLAYING CHANGING THE AUTOCAL PARAMETERS page 2 8 Duration Approx 1 minutes Step Instrument status action 1 Rinsing dist H2O 2 Feeding H2O dest 3 Wait 4 Measuring the E1H2O and E2H2O absorbance Calibration 1 Measuring mode Select TresCon NOX N with 68 2 Press the key 1 The AutoCal procedure begins immediately Firstly Rinse d...

Page 26: ...he result of the zero point calibration AutoCal 1 Measuring mode Select TresCon NOX N with 68 2 Call up the Parameters NOX N menu with 3 The main menu appears on the display 3 Confirm the menu item Display calibration data with 3 The display of the current calibration data appears Displaying the calibration ...

Page 27: ...alyzer module switches to the STOP mode The Calibration defective message appears in the measured value display To continue to measure with the last valid calibration data first press 5 to acknowledge the message and then press 2 Note The detailed calibration data of the last multi point calibration can be called up in the Service menu see section 3 9 VIEWING CALIBRATION DATA OF THE MULTI POINT CA...

Page 28: ...escribed in section 3 10 TRIGGERING A MULTI POINT CALIBRATION on page 3 35 Changing parameters Parameter Values AutoCal time Reference time at which a calibration should be started Further calibrations are carried out according to the adjusted calibration interval AutoCal interval Format hh mm input step by step minimum step 30 min AutoCal interval Calibration interval 1 2 3 6 12 24 h 1 Measuring ...

Page 29: ... 6 Select the parameters to be changed with 68 and switch into input mode with 3 7 Input the values required digit by digit if necessary with 68 Change the digit with 57 8 Confirm inputs with 3 If necessary repeat steps 6 and 7 for any other parameters 9 Leave the menu with 4 The request Store appears 10 Select Yes or No with 68 and confirm with 3 ...

Page 30: ...The AutoClean time parameter is linked with the AutoCal time and can only be changed in the Changing the AutoCal Parameter menu see section 2 5 page 2 8 Parameter Values AutoCal time Reference time at which an AutoClean procedure should be started Further AutoClean procedures are carried out according to the adjusted AutoClean interval The AutoClean time corresponds to the AutoCal time and cannot ...

Page 31: ...ch into input mode with 3 7 Input the values required digit by digit if necessary with 68 Change the digit with 57 8 Confirm inputs with 3 If necessary repeat steps 6 and 7 for any other parameters 9 Leave the menu with 4 The request Store appears 10 Select Yes or No with 68 and confirm with 3 ...

Page 32: ... a representative sample using a selected comparison procedure e g a laboratory photometer and WTW reaction cell test and the TresCon NOx N The measured value from the comparison procedure is entered as the nominal value for TresCon NOx N From the nominal value and its own measured value TresCon calculates a correction factor h that is used for all further measurements Note Manual correction is on...

Page 33: ...ss instructions for the comparison measurement determination of Cnominal Proceed as follows to determined Cnominal Input Cnominal You have determined the value Cnominal from the NOx counter measurement according to the regulatory process standard 1 Use a WTW test e g model 14764 for the comparison measurement 2 Measure the sample with the photometer Perform at least 5 tests according to the operat...

Page 34: ...l correction menu item with 68 and confirm with 3 The prompt Presentation of data Change appears 4 Select the Change mode with 68 and confirm with 3 5 Enter the PIN digit by digit with 68 Change to the next digit with 57 and confirm with 3 The analyzer switches into STOP mode 6 The Manual correction parameter is selected Switch into input mode with 3 7 Select On with 68 and confirm with 3 The curs...

Page 35: ...Values of Cnom that lie outside these limits cannot be stored Note The values for C shown here serve as wild cards and are without signi ficance 8 Switch into input mode with 3 9 Input the value calculated for Cnominal from the counter measurement digit by digit with 68 Change the digit with 57 10 Confirm the input with 3 11 Leave the menu with 4 The request Store appears 12 Select Yes or No with ...

Page 36: ...ates what effects the adjusted citation form has where Dimension Citation forms NOx NOx N mg l 1 0 0 2259 µmol l 16 13 16 13 Measured value Yes Measuring range Yes Input and display of Cnominal Yes Relay functions Yes General Parameters menu Recorder functions Yes General Parameters menu Parameter Values Citation form NOx N NOx Dimension mg l µmol l 1 Measuring mode Select TresCon NOX N with 68 2 ...

Page 37: ...7 and confirm with 3 The analyzer switches into the stop mode 6 To change the display switch to the input mode with 3 7 Select the required citation form with 68 8 Switch to the input of the unit with 7 9 Select the required unit with 68 10 Confirm the inputs with 3 11 Leave the menu with 4 The request Store appears 12 Select Yes or No with 68 and confirm with 3 ...

Page 38: ...t is output to the central unit is thus damped The calculation of the new values is performed at intervals of 20 s At intervals of the measurement 5 10 15 min etc depending on the setting a new x value is used for the lowpass filter calculation If the analyzer begins a new measuring cycle after STOP or AutoCal firstly all the xn are set to the newly calculated concentration values This prevents th...

Page 39: ...rm with 3 The prompt Presentation of data Change appears 4 Select the Change mode with 68 and confirm with 3 5 Enter the PIN digit by digit with 68 Change to the next digit with 57 and confirm with 3 The analyzer switches into the stop mode 6 Switch into input mode with 4 7 Input the rise time with 68 and confirm with 3 8 Leave the menu with 4 The prompt Store No appears 9 Select Yes or No with 68...

Page 40: ...l program is switched on in the Measuring Interval menu see section 2 12 DISPLAYING CHANGING THE MEASURING INTERVAL on page 2 25 Basic settings The following table contains the basic factory settings of the intervals The numbers are the interval times in minutes MON TUE WED THU FRI SAT SUN 00 02 hours cont cont cont cont cont cont cont 02 04 hours cont cont cont cont cont cont cont 04 06 hours con...

Page 41: ...ect TresCon NOX N with 68 2 Call up the Parameters NOx N menu with 3 The main menu appears on the display 3 Select the Interval program menu item with 68 and confirm with 3 The prompt Presentation of data Change appears 4 Select the Change mode with 68 and confirm with 3 5 Enter the PIN digit by digit with 68 Change to the next digit with 57 and confirm with 3 The analyzer switches into the stop m...

Page 42: ...ine of the first interval 8 Select the interval to be changed with 68 and switch into input mode with 3 9 Input the required value with 68 and confirm with 3 10 If necessary repeat steps 6 to 9 for any other weekdays intervals 11 Leave the menu with 4 The request Store appears 12 Select Yes or No with 68 and confirm with 3 ...

Page 43: ...ts the interval to Continuous corresponds to approx 1 minutes or to fixed interval times e g from 5 minutes to 20 minutes Relationship Measured value interval The following figure shows the relationship between the measured value and interval Parameter You can specify the concentration change per time DC time and the interval limits Minimum Maximum interval AutoAdapt sets the duration of the inter...

Page 44: ...15 20 25 30 min 1 Measuring mode Select TresCon NOX N with 68 2 Call up the Parameters NOx N menu with 3 The main menu appears on the display 3 Select the AutoAdapt menu item with 68 and confirm with 3 The prompt Presentation of data Change appears 4 Select the Change mode with 68 and confirm with 3 5 Enter the PIN digit by digit with 68 Change to the next digit with 57 and confirm with 3 The anal...

Page 45: ...Interval program for information on the fixed setting of 12 periods on each weekday see page 2 20 z Continuous or in fixed intervals 7 Input the values required digit by digit if necessary with 68 Change the digit with 57 8 Confirm inputs with 3 If necessary repeat steps 6 and 7 for any other parameters 9 Leave the menu with 4 The request Store appears 10 Select Yes or No with 68 and confirm with ...

Page 46: ...esentation of data Change appears 4 Select the Change mode with 68 and confirm with 3 5 Enter the PIN digit by digit with 68 Change to the next digit with 57 and confirm with 3 The analyzer switches into the stop mode 6 Switch into input mode with 3 7 Input the measuring interval with 68 and confirm with 3 8 Leave the menu with 4 The request Store appears 9 Select Yes or No with 68 and confirm wit...

Page 47: ...ing range corresponding to the resolution is given in the parameter ticket By using a dilution device before the TresCon the dilution error becomes part of the total error Parameter Values Dilution no 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 11 1 13 1 15 1 17 1 19 1 Measuring mode Select TresCon NOX N with 68 2 Call up the Parameters NOx N menu with 3 The main menu appears on the display 3 Select the...

Page 48: ...as been selected by the TresCon NOx N Note The dilution is only displayed in the measuring mode The dilution does not appear in the STOP mode 6 Switch into input mode with 3 7 Input the required dilution with 68 and confirm with 3 8 Leave the menu with 4 The request Store appears 9 Select Yes or No with 68 and confirm with 3 Measuring mode Display of the dilution ...

Page 49: ...chemicals and comply with the relevant regulations This applies in particular to the warning instructions on the chemical containers and in the safety datasheets Always use protective equipment Note Each service is made up of several steps You cannot quit the individual service routines Press the 3 key to skip individual steps Wear protective goggles Wear protective gloves Wear protective clothing...

Page 50: ...ata or Change mode To change parameters you must enter the four digit PIN Caution If you select the Presentation of data mode the measuring module continues to run in the background If you select the Change mode after the identification number has been entered the measuring module goes into STOP mode as important operating parameters could be changed 4 Move the selection to the lowest menu item wi...

Page 51: ... Instrument status action 1 Rinsing cleaning solution 2 Flushing back sample 3 Rinsing cleaning solution 4 Wait 5 Rinsing sample 6 Rinsing dist H2O 7 Wait 8 Rinsing dist H2O Program sequence 1 Measuring mode Select the NOx N measuring module with 68 2 Call up the Parameters NOx N menu with 3 The main menu appears on the display 3 Select the Service menu item with 68 and confirm with 3 The service ...

Page 52: ... substance to get into the hands of children Wear suitable protective gloves and goggles face mask when working with this substance If this substance gets into the eyes rinse thoroughly with water and consult a doctor Warning Only trained personnel is allowed to work on the analyzing section Always follow the warning instructions on the chemical containers and the safety datasheets Always use prot...

Page 53: ...appears on the display 3 Select the Service menu item with 68 and confirm with 3 The service menu appears 4 Select the Fill system menu item with 68 and confirm with 3 A checklist appears on the display 5 Place a full container on the tray 6 Connect the consumables Follow the color coding red Dist H2O blue Cleaning solution 7 Confirm the prompts each time with 3 after checking After the last confi...

Page 54: ...Maintenance NOx N 3 6 ba43110e05 01 2011 8 At the end of the procedure Service finished appears on the display 9 Return to the service menu with 3 ...

Page 55: ...tion Always follow the warning instructions on the chemical containers and the safety datasheets Always use protective equipment Duration Approx minute Note You cannot quit the procedure Step Instrument status action 1 Rinsing cleaning solution Wear protective goggles Wear protective gloves Wear protective clothing Program sequence 1 Measuring mode Select the NOx N measuring module with 68 2 Call ...

Page 56: ...e tray 6 Connect the container Follow the color coding blue 7 Confirm the prompts each time with 3 after checking After the last confirmation the procedure begins immediately and the remaining duration appears on the display 8 At the end of the procedure Service finished appears on the display ...

Page 57: ...ou cannot quit the procedure 9 Return to the service menu with 3 Step Instrument status action 1 Rinsing dist H2O Program sequence 1 Measuring mode Select the NOx N measuring module with 68 2 Call up the Parameters NOx N menu with 3 The main menu appears on the display 3 Select the Service menu item with 68 and confirm with 3 The service menu appears 4 Select the Replenish H2O dest menu item with ...

Page 58: ...ncorrect measurement results 5 Place a filled container of dist H2O on the tray 6 Connect the container Follow the color coding red 7 Confirm the prompts each time with 3 after checking After the last confirmation the procedure begins immediately and the remaining duration appears on the display 8 At the end of the procedure Service finished appears on the display 9 Return to the service menu with...

Page 59: ...is allowed to work on the analyzing section Always follow the warning instructions on the chemical containers and the safety datasheets Always use protective equipment Note If the TresCon is taken out of service for more than 24 hours the Empty system service routine must be performed Duration Approx 1 minutes Caution The pump empties the system via the tubes If the canisters are not removed the c...

Page 60: ...ith 3 The service menu appears 4 Select the Empty system menu item with 68 and confirm with 3 A checklist appears on the display 5 Disconnect the canisters with consumables from the tubes 6 Stick the ends of the tubes into the collecting container 7 Confirm the prompts each time with 3 after checking After the last confirmation the procedure begins immediately and the remaining duration appears on...

Page 61: ...NOx N Maintenance 3 13 ba43110e05 01 2011 8 At the end of the procedure Service finished appears on the display 9 Return to the service menu with 3 ...

Page 62: ...erformed at the correct time Note The instrument indicates when the pump tubings must be displaced replaced by a timely message service intervals 1 Measuring mode Select the NOx N measuring module with 68 2 Call up the Parameters NOx N menu with 3 The main menu appears on the display 3 Select the Service menu item with 68 and confirm with 3 The service menu appears 4 Select the Displace replace pu...

Page 63: ...start a sequence of operations You can then no longer quit this procedure If the tubings have been replaced or displaced an AutoCal procedure is triggered when the measuring procedure is started Step Instrument status action 1 Flush back sample Displace replace tubing During this operation the TresCon NOx N remains in the Wait mode After confirmation of the tasks by pressing a key the sequence of ...

Page 64: ... is allowed to work on the analyzing section Always follow the warning instructions on the chemical containers and the safety datasheets Always use protective equipment Replacing the pump tubings Reset the Replace pump tubings timer and reset the Displace pump tubings timer 1 Measuring mode Select the NOx N measuring module with 68 2 Call up the Parameters NOx N menu with 3 The main menu appears o...

Page 65: ...t of the checklist appears on the display 6 Pull the sample tubing out of the overflow vessel and close the connector 7 Insert the open end of the tube into a collecting container 8 Confirm each of the requests of the 1st part of the checklist with 3 after checking them After the last confirmation the procedure begins immediately and the remaining duration appears on the display ...

Page 66: ...t of the checklist appears on the display During the following activities the TresCon NOx N remains in the Wait mode 10 Swing out the pump cassette To do so open the gripping lever Subsequently unlock the pump cassette by pressing on the gripping lever and at the same time swing out the pump cassette ...

Page 67: ...he cassette into place in the peristaltic pump and close the gripping lever 13 Connect the sample tubing to the overflow vessel again 14 After performing the tasks confirm each of the prompts on the display with 3 After the last confirmation the 2nd part of the procedure begins immediately The remaining time appears on the display Standard sample pump tubing blue blue blue ...

Page 68: ...ba43110e05 01 2011 Note After this service the TresCon NOx N begins with AutoCal as soon as a new measurement starts 15 At the end of the procedure Service finished appears on the display 16 Return to the service menu with 3 ...

Page 69: ...the pump tubings Reset the Displace pump tubings timer 1 Measuring mode Select the NOx N measuring module with 68 2 Call up the Parameters NOx N menu with 3 The main menu appears on the display 3 Select the Service menu item with 68 and confirm with 3 The service menu appears 4 Select the Displace replace pump tubings menu item with 68 and confirm with 3 5 Select the Displace pump tubings service ...

Page 70: ... each of the requests of the 1st part of the checklist with 3 after checking them After the last confirmation the procedure begins immediately and the remaining duration appears on the display 9 After expiry of the 1st part of the routine The 2nd part of the checklist appears on the display During the following activities the TresCon NOx N remains in the Wait mode ...

Page 71: ...ette by pressing on the gripping lever and at the same time swing out the pump cassette 11 Displace the pump tubing Insert the pump tube in the pump cassette so that the first used section is on the pressure side 12 Click the cassette into place in the peristaltic pump and close the gripping lever Standard sample pump tubing blue blue blue ...

Page 72: ...le tubing to the overflow vessel again 14 After performing these tasks confirm each of the prompts of 2nd part of the checklist with 3 After the last confirmation the 2nd part of the procedure begins immediately The remaining time appears on the display 15 At the end of the procedure Service finished appears on the display 16 Return to the service menu with 3 ...

Page 73: ...AR When it is replaced depends on the sample preparation The TresCon has adjustable timers that indicate the maintenance activities required when the relevant service intervals expire Cleaning solution causes severe corrosion Do not allow this substance to get into the hands of children Wear suitable protective gloves and goggles face mask when working with this substance If this substance gets in...

Page 74: ...ater can become unusable You cannot quit the procedure Caution After step 9 of the following instructions you can no longer quit the procedure Preparation Step Instrument status action 1 Flush back sample Replace tubing system During this operation the TresCon NOx N remains in the Wait mode After confirmation of the tasks by pressing a key the sequence of operations is continued 2 Rinse sample Par...

Page 75: ... and confirm with 3 The service menu appears 8 Select the Replace tubing system menu item with 68 and confirm with 3 The 1st part of the checklist appears 9 Confirm each of the requests of the 1st part of the checklist with 3 after checking them After the last confirmation the procedure begins immediately The duration appears on the display 10 After completion of the 1st part of the routine the 2n...

Page 76: ... to the end of this section on page 3 29 To change the connection pieces T pieces and L pieces pull off the cap at the corresponding holding device Then pull out and exchange the connection piece Assemble the connection piece again and secure it with the cap in reverse order When replacing the pump tubings make sure they have the same color coding tubing diameter When connecting the consumables ma...

Page 77: ... the tubings around the coil loosely and without stretching z The openings of the tube borings are chamfered on one side so the tubings can be wound without bending Make sure the chamfered openings are on the right side see pictures The chamfered edge determines the winding direction z If you have difficulties threading a tube end through the boring slightly moisten the tube on the outside 13 At t...

Page 78: ...10e05 01 2011 Pos Hose type Inner Ø Length 1 Ismaprene beige 1 52 mm 70 mm 2 Tygon transparent 1 52 mm 330 mm 1 2 Ismaprene beige 60 mm 50 mm side with chamfered openings to the photometer block 2 coils loose red pull off by hand ...

Page 79: ...the duration of the interval If you change a service interval the display of the remaining time also changes automatically correspondingly The following table contains the service interval settings and the value ranges as well as the recommended interval times selected in the factory for the respective operating mode Displacing the pump tubings Replacing the pump tubings Replacing the tubing syste...

Page 80: ...ch into input mode with 3 6 Input the values required digit by digit if necessary with 68 Change the digit with 57 7 Confirm the inputs with 3 If necessary repeat steps 6 and 7 for any other parameters 8 Leave the menu with 4 The request Store appears 9 Select Yes or No with 68 and confirm with 3 ...

Page 81: ...s and are of no significance 1 Measuring mode Select the NOx N measuring module with 68 2 Call up the Parameters NOX N menu with 3 The main menu appears on the display 3 Select the Service menu item with 68 and confirm with 3 The service menu appears 4 Select the View calibration data menu item with 68 and confirm with 3 The first page of the calibration data appears 5 Change to the display of the...

Page 82: ...llowing meaning 6 Leave the menu with 4 Parameter Meaning Ca Concentration of standard A Ea Absorption of standard A Cb Concentration of standard B Eb Absorption of standard B Cc Concentration of standard C Ec Absorption of standard C Cd Concentration of standard D Ed Absorption of standard D a0 a4 Polynomial parameter g0 g1 Calibration parameters ...

Page 83: ... tube Caution Only perform this service using the recommended WTW standards We recommend that you only allow the manual calibration to be performed by the WTW service department maintenance contract Step Instrument status action 1 Rinsing cleaning solution 2 Flushing back sample 3 Rinsing cleaning solution 4 Rinsing dist H2O 5 Rinse sample 6 Rinsing dist H2O 7 Flushing back sample 8 Rinsing dist H...

Page 84: ...ion Ca 10 mg l NO3 Cb 50 mg l NO3 Cc 150 mg l NO3 Cd 250 mg l NO3 1 Check that the dist H2O is connected and if necessary connect it Only use distilled water free of contamination e g softeners 2 Pull the sample tubing out of the overflow vessel 3 Insert the open end of the tube into a collecting container 1 Measuring mode Select the NOx N measuring module with 68 2 Call up the Parameters NOX N me...

Page 85: ...tep 8 you can no longer cancel the procedure 6 Confirm the requests of the checklist with 3 after checking them After the last confirmation the required calibration standards are displayed 7 Confirm with 3 The calibration starts with the first step AutoClean ...

Page 86: ...llowing prompt appears on the display 9 Confirm with 3 when dist H2O has been connected to the connection for dist H2O red The zero point measurement is performed The remaining time appears on the display 10 After the waiting time has expired the following prompt appears on the display ...

Page 87: ...rd to be used beforehand 11 Pour a small amount of the first standard into a beaker 12 Completely submerse the suction tube of the orange lid in the beaker 13 Screw the lid onto the first calibration standard 14 Connect the standard with the specified concentration of NO3 to the connection for dist H2O red and confirm with 3 The measurement is performed The remaining time appears on the display 15...

Page 88: ...0000 E shown here only serve as wild cards and are of no significance 16 Repeat steps 13 to 17 for all other standards After the last standard was measured the result of the calibration first page appears on the display 17 Change to the second page of calibration data with 3 ...

Page 89: ...ight side of the time The analyzer module switches to the STOP mode Repeat calibration using the correct standards or quit the menu with 4 to continue measuring with the last valid calibration 18 Unscrew the lid orange with the suction tube from the last calibration standard 19 Thoroughly rinse the suction tube with distilled water 20 Connect the sample tubing to the overflow vessel again 21 Conne...

Page 90: ...ls No sample until sample is available again or until 15 minutes have passed During this time the peristaltic pump operates at low speed The pressure measurement is performed continuously during this time so that a measuring cycle starts immediately when sample is available again If no sample is available after 15 minutes the analyzer module signals NO SAMPLE Relationship Parameter messages If the...

Page 91: ...t Presentation of data Change appears 5 Select the Change mode with 68 and confirm with 3 6 Input the PIN digit by digit with 68 Change the digit with 57 and confirm with 3 The analyzer switches into the stop mode 7 Select the parameters to be changed with 68 and confirm with 3 8 Input the required status with 68 9 Confirm the input with 3 and if necessary repeat steps 6 and 7 for any other parame...

Page 92: ...Maintenance NOx N 3 44 ba43110e05 01 2011 ...

Page 93: ...ror occurs an appropriate short text appears on the display and the analyzer module switches into the Stop mode You must employ the appropriate measures depending on the error message to clear the fault The following overview contains all the possible messages and the measures required to clear the fault Cause Action Dist H2O cannot be transported negative pressure in the hose connector Check the ...

Page 94: ... Action Lack of sample negative pressure in the inlet Check the tubes for breaks and foreign bodies and replace them as necessary including the tube in the container Check whether air can pass through the vent in the container lid Cause Action Sample flow is interrupted TresCon NOx N sucks in air Check the sample inlet for leaks Check the preconnected filter and dilution devices Cause Action Sampl...

Page 95: ... 6 1 ACCESSORIES AND MATERIAL SUBJECT TO WEAR A container lid with intake tube for the cleaning solution can be obtained from WTW on request Cause Action The lamp in the measuring device is defective Contact the WTW service department Cause Action Thermoblock cannot be brought to the required final temperature Contact the WTW service department Cause Action Error within the software or hardware Co...

Page 96: ... page 3 1 Cause Action An error occurred when writing parameter data Confirm the prompt with 3 contact the WTW service department in order to measure Cause Action Fluid level in the container has fallen below 4 cm Replace the container with a full one Start the Replenish dist H2O service Cause Action Fluid level in the container has fallen below 4 cm Replace the container with a full one Start the...

Page 97: ...en performed see chapter 3 MAINTENANCE from page 3 1 An instrument check can only be performed by the WTW service department Cause Action Interval The hose system is worn Start the Displace pump tubings service 30 days Cause Action Interval Lifetime of the pump tubings is exceeded Start the Replace pump tubings service 180 days Cause Action Interval A general instrument maintenance is necessary Co...

Page 98: ...What to do if NOx N 4 6 ba43110e05 01 2011 ...

Page 99: ...lution Resolution Range mg l NOx N 0 1 mg l 0 1 60 0 mg l Resolution Resolution Range mg l NOx 0 1 mg l 0 1 99 9 mg l 1 mg l 100 250 mg l Resolution Resolution Range µmol l NOx N NOx 1 µmol l 0 4000 µmol l Measuring accuracy Absolute error 2 of measured value 0 4 mg l NOx N Process variation coefficient 2 Response time Approx 30 seconds after a change in concentration at the input Measuring interv...

Page 100: ... every 120 calibrations Cleaning solution 1 5 l cleaning solution for 120 cleanings Consumption Measuring range End of range 0 1 60 0 mg l NOx N 120 mg l 0 1 250 mg l NOx 500 mg l 0 4000 µmol l NOx N 8000 µmol l 0 4000 µmol l NOx 8000 µmol l Measuring range Recorder end 0 1 60 0 mg l NOx N 120 mg l 0 1 250 mg l NOx 500 mg l 0 4000 µmol l NOx N 8000 µmol l 0 4000 µmol l NOx 8000 µmol l End of range...

Page 101: ...el Order no 1 set of standards NO3 N 4 x 1 5 l SSet N211 821 113 10 l standard A I Zero standard of dist H2O S AI N211 821 112 1 5 l cleaning solution C N211 821 163 1 5 l cleaning solution consult WTW service personnel before ordering C TCM1 821 156 1 5 l cleaning solution consult WTW service personnel before ordering C N 211 Fe 821 165 Set of replacement tubings Wpack N211 821 199 Empty 1 5 l co...

Page 102: ... P1 h1 60 cm Dist H2O empty Dist H2O empty P1 h1 50 cm Display on the screen Type of error Pressure sensor Replenish cleaning solution Cleaning solution must be filled P1 60 cm h1 4 cm Cleaning solution clogged Cleaning solution clogged P1 h1 60 cm Cleaning solution empty Cleaning solution empty P1 h1 50 cm Display on the screen Type of error Pressure sensor Sample inlet clogged Sample inlet clogg...

Page 103: ...t Instrument response TXCLEAN AutoClean is started followed by AutoCal TresCon subsequently goes into the measuring mode Instrument response TXCMRUN TresCon is put into the measuring mode If the intervals for AutoClean and AutoCal have expired the respective routine begins automatically Instrument response TresCon TXCSTOP TresCon is put into the Stop mode Instrument response TresCon TresCon NOx N ...

Page 104: ... erroneous calibration and the last valid calibration is displayed The data of the erroneous calibration is marked with an err on the right hand side of the time Calibration data NOx N Module 1 22 04 03 15 26 24 Calibration data of 22 04 03 15 25 56 E1H2O 1 66 mE E2H2O 74 33 mE TresCon Calibration data NOx N Module 1 22 04 03 15 28 56 Calibration data of 05 07 02 11 08 36 Standard A 10 0 mg l NO3 ...

Page 105: ...sponse NOx N Module 1 22 04 03 15 30 37 AutoCal 07 00 24 h AutoClean 07 00 24 h TresCon NOx N Module 1 22 04 03 15 32 01 1 22 mg l NOx N TresCon Selected parameters NOx N Module 1 22 04 03 15 32 42 Display NOx mg l AutoCal time 07 00 h AutoCal interval 24 h AutoClean time 07 00 h AutoClean interval 24 h Measuring interval Continuous Manual correction Off Attenuation 2 AutoFlow Fluid level measurem...

Page 106: ...nly 00 or 30 allowed here 03 00 hours Instrument response TXWCLEANINT12 Setting of the AutoClean interval here 12 hours Instrument response NOx N Module 1 22 04 03 15 36 34 AutoCal 07 00 12 h AutoClean 07 00 24 h TresCon NOx N Module 1 22 04 03 15 37 04 AutoCal 03 00 12 h AutoClean 03 00 24 h TresCon NOx N Module 1 22 04 03 15 37 19 AutoCal 03 00 12 h AutoClean 03 00 12 h TresCon ...

Page 107: ...Rinsing dist H2O 1 0 SR Feeding H2O dest 1 0 LR Flush back dist H2O 1 0 SL Rinsing cleaning solution 1 1 SR Flushing back cleaning solution 1 1 SL Regulating the sample temperature X X 0 0 Current free path active 1 Current carrying path active X No function SR Quickly to the right 80 rpm SL Quickly to the left 80 rpm LR Slowly to the right 32 rpm LL Slowly to the left 32 rpm ...

Page 108: ...Appendix NOx N 6 8 ba43110e05 01 2011 ...

Page 109: ...splaying changing service intervals 5 31 E Emptying the system 5 11 operating steps 5 11 Error messages 6 1 F Filling dist H2O operating steps 5 9 Filling the system 5 4 operating steps 5 4 starting the procedure 5 5 Function 3 2 I Instrument activities appendix 8 7 Instrument check 6 5 Instrument parameters 3 15 Instrument states 8 2 Interval program 4 20 changing 4 21 factory setting 4 20 L LED ...

Page 110: ...y datasheets 3 5 Scope of delivery 3 5 Service 5 1 Service menu 5 1 calling up 5 1 Service messages 6 5 Switching Auto Flow on off 5 42 T Technical data 7 1 Triggering a multi point calibration 5 35 Troubleshooting 6 1 V View calibration data 5 33 W What to do if 6 1 ...

Page 111: ......

Page 112: ...s 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 expertise backed by a legacy of innovation Xylem Analytics Germany GmbH Dr Karl Slevogt Str 1 82362 Weilheim Germany Xylem Analytics Germany Sales GmbH Co KG WTW Dr Karl Slevogt Str 1 82362 Weilheim ...

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