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Operating Instructions

TARAsys

Measuring Board MT10

April 2021 (EN)

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Summary of Contents for TARAsys MT10-CL

Page 1: ...Operating Instructions TARAsys Measuring Board MT10 April 2021 EN V0 ...

Page 2: ...3 Alteration and modifications 11 3 4 Residual risks 12 4 Installation 14 5 Putting the measuring board into service 16 5 1 Installation requirements 16 5 2 Preparation of the electrolysis cell 16 5 3 Preparation of the sensor 19 5 4 Inserting the sensor into the flow chamber 19 5 5 Inserting the electrolysis cell into the flow chamber 20 5 6 Putting the flow chamber into service 22 5 7 Flow contr...

Page 3: ...6 Controller settings that must not be changed 28 7 Calibration 30 8 Removal 32 9 Maintenance of the electrolysis cell 32 9 1 Maintenance overview 32 9 2 Replacement of electrolyte and membrane cap 32 10 Troubleshooting 34 10 1 Special tests 35 11 Disassembly and storage 35 11 1 Measuring board 35 11 2 Electrolysis cell 35 11 3 Sensor 36 12 Disposal 36 13 Warranty 36 14 Liability disclaimer 37 ...

Page 4: ...additional costs Signal word Meaning DANGER DANGER refers to a hazard with a high risk level which if not avoided results in death or severe injury DANGER This sign indicates that there is a risk of personal injury caused by electric shock if no appropriate safety precautions are taken WARNING WARNING refers to a hazard with a medium risk level which if not avoided might result in death or severe ...

Page 5: ...nts This symbol indicates a prerequisite for the performance of an action Tab 2 Symbols and displays used in the text 1 2 Related documents You can find the data sheets for the measuring board and the electrolysis cell at the following internet address https reiss gmbh com lang en You can find the data sheet for the inductive proximity switch at the following internet address https reiss gmbh com ...

Page 6: ...rating Instructions 6 38 TARAsys You can find the data sheet for the solenoid valve at the following internet address www landefeld de en MO 214 ES 24V The data sheet for the power supply unit is comprised in the scope of supply ...

Page 7: ...keep the sensor free from biofilms in the phases without chlorine For this purpose the disinfectant generated by the electrolysis cell is applied to the sensor on a daily basis This happens automatically through the closing of a solenoid valve which stops the flow of the measuring water and thus allows the diffusion of the disinfectant generated from the electrolysis cell to the sensor A major adv...

Page 8: ...nic chlorine products e g chlorine gas sodium hypochlorite solution calcium hypochlorite solution The following kinds of chlorine are recorded Free chlorine from inorganic chlorination products chlorine gas hypochlorite etc Bound chlorine chloramine 2 2 Scope of supply Keep the complete packaging Send in the measuring board in its original packaging if it needs to be repaired or in case of claims ...

Page 9: ...ard Fig 1 Product overview 1 Controller 2 Solenoid valve 3 Flow chamber 4 Sensor1 5 Electrolysis cell2 6 Sampler 7 Flow control 8 Measuring water inlet 9 Measuring water outlet 10 Inductive proximity switch 1 Not included in the scope of supply 2 For product overview see Chapter 2 3 2 ...

Page 10: ... 2 3 2 Electrolysis cell Fig 2 Product overview 1 Electrical connection 2 Electrode body 3 Anode 4 O ring 14 x 1 8 5 Valve opening 6 Membrane disk 7 O ring 25 x 2 5 8 Hose rings x2 9 Membrane cap 10 Cathode 11 Electrode finger 12 O ring 25 x 2 5 ...

Page 11: ...onditions For the disinfectant specified in the data sheet of the sensor used Under the operating conditions specified in the associated data sheet Only for the activities described in these Operating Instructions Usage of the board in perfect condition only Use of original accessories and spare parts see https www reiss gmbh com 3 2 Qualification of the operating staff The operator of the board m...

Page 12: ...y this may result in the following risks The membrane of the electrolysis cell will be damaged Screw fittings work loose and measuring water leaks Observe the maximum admissible pressure according to the data sheet see Chapter 1 2 p 5 Keep the pressure constant 3 4 3 Abrasive particles Abrasive particles can damage the membrane of the electrolysis cell Install a filter upstream of the measuring bo...

Page 13: ...ed When the measuring value fails during the disassembly of the sensor this may lead to the incorrect dosing of the disinfectant Shut off the measuring and control system or switch to manual operation 3 4 8 Temperature and temperature fluctuation If the temperature of the medium or the ambient temperature is outside the admissible range this can damage the measuring board and the electrolysis cell...

Page 14: ...is the risk of electric shock De energise the entire system before performing any work This kind of work must only be performed by skilled staff Never install the device in potentially explosive atmospheres There is an explosion hazard Mount the measuring board in a perpendicular position e g on a mounting plate or on a wall ...

Page 15: ...5 38 Fig 3 Dimensions Connect the board to the electric mains observe Chapter 1 2 p 5 Close the flow control valve Connect the measuring water inlet and measuring water outlet The measuring water outlet must be depressurised ...

Page 16: ...uirements must be met Permanent power supply and presence of measuring water Flow rate as specified in the data sheet of the sensor Constant flow rate Disinfectant must be present in the measuring water for calibration Ensure that the measuring water does not outgas at the measuring point 5 2 Preparation of the electrolysis cell Unscrew the membrane cap 2 from the electrode body 1 Fig 4 Screwing o...

Page 17: ...t Fill the membrane cap of the electrolysis cell up to the rim with electrolyte EEZ1 0 W Fig 6 Filling the membrane cap The electrolyte EEZ1 0 W for the electrolysis cell must not be mixed up with the electrolyte for the sensor When the sensor electrodes come into contact with the electrolyte EEZ1 0 W the sensor loses its function Pay attention to the correct allocation of the electrolytes ...

Page 18: ...to the membrane cap Ensure not to press the valve opening shut e g with your fingers The first resistance felt during screwing on comes from the O ring seal Continue screwing the cap on until it touches the shaft Push the second hose ring over the first hose ring in the groove After the membrane cap has been completely screwed on Do not touch the membrane or knock against it Wash off any remainder...

Page 19: ...n mounted and connected to the electric mains see Chapter 4 p 14 The flow chamber is pressureless The sensor has been prepared see Chapter 5 3 p 19 Remove the screw fitting 2 from the flow chamber 8 Check the retaining ring 3 sliding ring 4 and O ring 25 x 2 5 5 for proper position on the sensor 1 Check the O ring support 6 and the O ring 30 x 2 6 7 for proper position in the flow chamber Slowly p...

Page 20: ...x 2 5 2 Screw fitting 6 O ring support 3 Retaining ring 7 O ring 30 x 2 6 4 Sliding ring 8 Flow chamber The sensor has been inserted into the flow chamber 5 5 Inserting the electrolysis cell into the flow chamber The electrolysis cell has been prepared see Chapter 5 2 p 16 The sensor has been installed see Chapter 5 4 p 19 ...

Page 21: ...1 Moisten the O rings at the electrolysis cell with tap water Slowly push the electrolysis cell into the flow chamber Carefully push the screw fitting over the electrolysis cell Completely screw on the screw fitting until the electrolysis cell touches the sensor Fig 10 Inserting the electrolysis cell 1 Electrolysis cell 4 O ring 25 x 2 5 2 Screw fitting 5 Flow chamber 3 O ring 25 x 2 5 ...

Page 22: ...uring water outlet Slowly open the flow control valve i Check for tightness in doing so 5 7 Flow control The needle valve located on the left of the TARAflow FLC opens and closes the measuring water inlet Adjust the flow a little above the switching point of the inductive proximity switch 5 8 Taking measuring water samples The needle valve located on the right of the TARAflow FLC opens a separate ...

Page 23: ...have the possibility to read the measured value and further digital signals showing the current status of the measuring board Fig 11 Process display 6 1 1 Chlorine signal The current measured value of the chlorine sensor can be read in ppb If the sensor is not connected a value of 5000 ppb is displayed When Signal Hold is active a fixed value is displayed see Chapter 6 1 2 p 24 ...

Page 24: ...is put out 1 The signal displayed is a fixed value frozen During the disinfection cycle the output signal of the sensor is frozen at the last value measured before the disinfection cycle The disinfection cycle is performed once per day Any point of time can be chosen for this purpose see Chapter 6 4 p 26 6 2 Diagram By tapping the button next operating screen on the touchscreen the recorded signal...

Page 25: ...sys 25 38 Fig 12 Diagram Chlorine The current measured value of the chlorine sensor can be read in ppb Temperature The temperature is read out of the chlorine sensor The chlorine sensor uses this for internal temperature compensation ...

Page 26: ...llowing steps Fig 13 Logon as master You have been logged on as master You can make changes 6 4 Setting the time for the disinfection sensor You have been logged on as master in the controller see Chapter 6 3 p 26 Push the info button located at the bottom left of the touchscreen Device menu opens Device menu Logon Logoff Logon ID input Master OK Password 9200 ...

Page 27: ... the electrolysis cell Timers 5 to 12 are freely available 6 5 Connecting the sensor with the controller The sensor has been electrically connected with the controller see Chapter 5 9 p 22 You have logged on as master in the controller see Chapter 6 3 p 26 Push the info button located at the bottom left of the touchscreen Device menu opens Device menu Configuration Timer Control timer 1 Monday Tue...

Page 28: ... a sensor 6 6 Controller settings that must not be changed There are some settings in the controller that must not be changed as they are required for the proper function of the measuring board If these settings are changed nonetheless the function of the measuring board cannot be ensured Device menu Digital sensors Select first line Select first line ...

Page 29: ...eration of the controller TARAsys 29 38 Configuration Digital Sensor 1 IN 1 Limit value monitoring 1 OUT1 and OUT2 Timers 1 to 4 Logic formulas 1 and 2 Mathematical formulas 1 2 3 and 8 Process display 1 ...

Page 30: ...tion of the sensor signal to the concentration of the disinfectant in the measuring water Certain prerequisites for the sensor must be met to enable its calibration see Chapter 1 2 p 5 Push the info button located at the bottom left of the touchscreen Device menu opens Perform the following steps Fig 16 Calibration of the sensor Part 1 Device menu Calibration 1 Digit sensor 1 Slope calibration OK ...

Page 31: ...table analytical measuring method see operating instructions issued by the manufacturer of the analysis instruments Fig 17 Calibration of the sensor Part 2 The sensor has been calibrated Repeat the calibration at regular intervals see Chapter 9 1 p 32 Comply with the applicable national regulations relating to calibration intervals Enter concentration in ppm OK OK Yes X ...

Page 32: ...water outlet Remove the electrical connection 9 Maintenance of the electrolysis cell 9 1 Maintenance overview In order to ensure the optimum function of the electrolysis cell Perform the following activities at regular intervals Maintenance task Interval Replace the electrolyte 6 months Exchange the membrane cap Annually Tab 4 Maintenance overview 9 2 Replacement of electrolyte and membrane cap Li...

Page 33: ...y from the membrane cap Rinse the electrode finger with tap water Place special emery paper on a paper towel Hold the electrolysis cell in an upright position Hold on to the special emery paper and run the tip of the anode over the paper at least twice Use a new section of the emery paper each time Fig 19 Rubbing the anode down with emery paper ...

Page 34: ...bleshooting Various factors in its environment can have an influence on the measuring board In case of irregularities it may be useful to check these factors Flow Measuring cable Measuring and control device Calibration Dosing device Concentration of the disinfectant in the dosing container Suitability of the sensor for measuring the disinfectant dosed Concentration of the disinfectant in the meas...

Page 35: ...functioning Send the electrolysis cell to the supplier for inspection 11 Disassembly and storage 11 1 Measuring board Perform the following steps to disassemble a measuring board and prepare it for storage Disconnect the measuring board from the electric mains Remove the measuring water connections Disassemble the electrolysis cell and the sensor Dry the measuring board in a dust free place Store ...

Page 36: ...or at least one day we recommend not to use it anymore when the electrolysis cell is put into service again Replace the membrane cap see Chapter 9 2 p 32 11 3 Sensor Observe the operating instructions of the sensor 12 Disposal Comply with the local disposal regulations 13 Warranty Subject to their being properly handled the manufacturer grants a two year warranty for the measuring board and the el...

Page 37: ...of one year is granted for inspected parts The warranty period begins to run on the inspection date This warranty will become void in case of mechanical damage or illegible serial number 14 Liability disclaimer The measuring board and the electrolysis cell are manufactured with the greatest care and subjected to a recorded function test Should malfunctions nevertheless occur during application no ...

Page 38: ...Reiss GmbH Eisleber Str 5 D 69469 Weinheim Germany ...

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