8232 BURKERT | Alldatasheet
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Visit product website DATA SHEET Type 8619 multiCELL - Multi-chan- nel and multi-function transmitter/controller Type 8200 Armatures for analytical sensors Standard | EU | en | 202212 | 10 Chlorine sensor
- F ree chlorine sensor “Trace” with three electrodes for measuring at low concentrations F ree chlorine sensor with three electrodes and greatly reduced pH dependency F ree chlorine sensor with two electrodes for standard applications at a constant pH value T otal chlorine sensor with three electrodes and greatly reduced pH dependency The 8232 from Bürkert is an electrochemical sensor for measuring the free or total chlorine content of an inorganic source (chlorine gas, sodium hypochlo- rite solution, ...). Four variants of Type 8232 are available: The “T race” chlorine sensor (zero chlorine) equipped with three electrodes is suitable for measuring very low concentrations of free chlorine. The diaphragm of this sensor is protected against biofouling and can therefore work for up to four weeks in water without chlorine. It has a voltage output on a 5-pin M12 circular male connector. The fr ee chlorine sensor with three electrodes offers greatly reduced pH dependency. The sensor has a current output on a 5-pin M12 circular male connector and is designed for applications in swimming pool, drinking or sea water. The liquid must contain a minimum chlorine concentration (≥ 0.1 ppm). The fr ee chlorine sensor with two electrodes delivers a current output on on a 5-pin M12 circular male connector. This sensor is designed for use with swimming pool, drinking or process water. The fluid being measured must not contain any cleaning agents (e.g. surfactants) or abrasive parti- cles. The pH value must be kept at a constant level. The fluid must contain a minimum chlorine concentration (≥ 0.1 ppm) The t otal chlorine sensor with three electrodes offers greatly reduced pH dependency. The sensor has a current output on a 5-pin M12 circular male connector and is suitable for applications in swimming pools, drinking or sea water, and brine. It measures total chlorine = free chlorine + combined chlorine. Product variants described in the data sheet may differ from the product presentation and description. Type descriptionCan be combined with Type 8232 © Christian Bürkert GmbH & Co. KG, Subject to alteration
2 | 17 Visit product website Table of contents 1. Gener al technical data 3 Materials 2.2. Mat erial specifications Free chlorine sensor “Trace” (zero-chlorine) with membrane cap M48.2 Free chlorine sensor with 3 electrodes with membrane cap M48.4 Free chlorine sensor with 2 electrodes with membrane cap M20.2 Total chlorine sensor with 3 electrodes with membrane cap M48.4 3. Dimensions 10 Performance specifications 10 Slope versus pH 4.2. F ree chlorine sensor with 3 electrodes with membrane cap M48.4 Slope versus pH Slope versus flow rate 4.3. F ree chlorine sensor with 2 electrodes with membrane cap M20.2 Slope versus pH Slope versus flow rate 4.4. T otal chlorine sensor with 3 electrodes with membrane cap M48.4 Slope versus pH Slope versus flow rate 5. P roduct installation 14 6. P roduct operation 14 7. P roduct design and assembly 14 8. Networking and combination with other Bürk ert products 15 Or dering information 9.2. Recommendation r egarding product selection 9.3. Bürk ert product filter 9.4. Or dering chart 9.5. Or dering chart accessories
3 | 17 Visit product website 1. Gener al technical data Note: The chlorine sensor Type 8232 is available in four models. Sensor model Free chlorine sensor “Trace” (zero-chlorine) Free chlorine sensor with electr odes Free chlorine sensor with electr odes Total chlorine sensor with electr odes Product properties Material Detailed information on the materials can be found in chapter “Free chlorine sensor “Trace” (zero-chlorine) with membrane cap M48.2” on page 8. “Free chlorine sensor with 3 electrodes with membrane cap M48.4” on page 8. “Free chlorine sensor with 2 electrodes with membrane cap M20.2” on page 9. “Total chlorine sensor with 3 electrodes with membrane cap M48.4” on page 9. Non wetted parts Ring PETP PETP PETP PETP Fixed connector PA PA PA PA Wetted parts Sensor armature PVC-U PVC-U PVC-U PVC-U Electrode holder PEEK PEEK PEEK PEEK Electrode Stainless steel 1.4571, silver/Silver Halide, gold Stainless steel 1.4571, silver/Silver Halide, gold Silver/Silver Halide, gold Stainless steel 1.4571, silver/Silver Halide, gold Membrane Microporous hydrophilic Microporous hydrophilic Semi permeable hydro- phobic Microporous hydrophilic Seal NBR NBR NBR NBR Other PVC-U, stainless steel 1.4571, PEEK PVC-U, stainless steel 1.4571 PVC-U, ABS PVC-U, stainless steel 1.4571 Application For monitoring absence of chlorine in reverse osmosis systems 1.) (zero-chlorine) For monitoring free chlo- rine at fluctuating pH in eg. drinking water For monitoring free chlorine at constant pH in eg. swimming pool For monitoring total chlorine at fluctuating pH in eg. swimming pool, drinking water, sea water, brine (15 % NaCl) Compatibility W ith probe holder Type 8200 variant analytical measuring chamber Detailed information can be found in the data sheet of the armatures for analytical probe, see data sheet Type 8200 Dimensions Detailed information can be found in chapter “3. Dimensions” on page 10. Weight Approx. 125 g Measuring principle Membrane covered, am- perometric potentiostatic electrode system with electronic inside (completely galvanically isolated, digital internal data processing) Membrane covered - amperometric poten- tiostatic 3 electrodes system with electronic inside Membrane covered - amperometric 2 electrodes system with electronic inside Membrane covered - amperometric poten- tiostatic 3 electrodes system with electronic inside Temperature compen- sation Automatic (integrated temperature sensor) Sudden temperature changes must be avoided. Measured quantity Free chlorine Free chlorine, reduced pH dependency Free chlorine, pH-de- pendent Total chlorine (= free chlorine + bound chlorine), reduced pH dependency Electrolyte EMST1 gel ECS2.1 gel ECL1 ECP1.4 gel Measuring range 0.005…2 ppm 0.05…20 ppm 0.05…20 ppm • 0.05…5 ppm 0.05…20 ppm Z ero point adjustment Not necessary Not necessary Not necessary Not necessary
4 | 17 Visit product website Sensor model Free chlorine sensor “Trace” (zero-chlorine) Free chlorine sensor with electr odes Free chlorine sensor with electr odes Total chlorine sensor with electr odes Cross sensitivity/Inter- ference
- ClO2, O3 influence the signal strongly. High concentr ations of bound chlorine can increase the meas- ured value. Corr osion inhibitors, Stabilisers for water hardness can lead to measuring errors. Reducing agents can lead t o a loss in slope.
- ClO2 (factor 0.75), O3 (factor 0.8) influence the signal. High concentr ations of bound chlorine can increase the meas- ured value. Corr osion inhibitors, Stabilisers for water hardness can lead to measuring errors. ClO2 (factor 9), O3 influence the signal. Electr olytically gener- ated chlorine with a cell without mem- brane can disturb measurement. ClO2 (factor 1) O3 (factor 1.3) Corr osion inhibitors, Stabilisers for water hardness can lead to measuring errors. Maintenance 2.) Control of the measuring signal Min. once a week rec- ommended Min. once a week rec- ommended Min. once a week rec- ommended Min. once a week rec- ommended Change of the mem- brane cap Once a year recom- mended Once a year recom- mended Once a year recom- mended Once a year recom- mended Change of the electrolyte Every 3…6 months recommended Once a year recom- mended Every 3…6 months recommended Once a year recom- mended Product accessories Membrane cap M48.2 with intern holder (G-holder) M48.4E (M48.4S for sea water on request) M20.2 M48.4E (M48.4S for sea water or brine on request) Chlorination agent Inorganic chlorine com- pounds: NaOCl (sodium hy pochlorite) C a(OCl)2
- Chlorine gas Electr olytically gener- ated chlorine Inorganic chlorine com- pounds: NaOCl (sodium hy pochlorite) C a(OCl)2
- Chlorine gas Electr olytically gener- ated chlorine Inorganic chlorine com- pounds: NaOCl (sodium hy pochlorite) C a(OCl)2
- Chlorine gas Chlorine electr olysis with membrane cell (unsuitable: chlorine electrolysis without membrane cell) Inorganic chlorine com- pounds: NaOCl (sodium hy pochlorite) C a(OCl)2
- Chlorine gas Electr olytically gener- ated chlorine Suitable transmitter Type 8619 multiCELL Transmitter/Controller3.) or any transmitter with appropriate input Further accessory • Phot ometer MD100 DPD 1 reagent Ext ernal calibration device Phot ometer MD100 DPD 1 reagent Phot ometer MD100 DPD 1 reagent Phot ometer MD100 DPD 4 reagent DPD 1 + DPD reagents Detailed information can be found in chapter “9.5. Ordering chart accessories” on page 16. Performance data Sensor resolution 0.001 ppm 0.01 ppm 0.01 ppm 0.01 ppm Run-in time After first start-up and maintenance operations approx. 2 hours After first start-up and maintenance operations approx. 2 hours After first start-up and maintenance operations approx. 1 hour After first start-up and maintenance operations approx. 2 hours Response time (t90 %) Appr approx. 5 min.) Sensor reactivity loss After max. 4 weeks use in chlorine-free water After max. 24 hours use in chlorine-free water After max. 24 hours use in chlorine-free water After max. 24 hours use in chlorine-free water
5 | 17 Visit product website Sensor model Free chlorine sensor “Trace” (zero-chlorine) Free chlorine sensor with electr odes Free chlorine sensor with electr odes Total chlorine sensor with electr odes Slope – Slope of these sensors can vary depending on production or application between 65 % and 150 % of the nominal slope. Recommendation t o determinate the suitable measuring range or the suitable sensor: concentration to be measured x factor 1.5 = measuring range of the sensor Example: concentration to be measured 1.6 ppm x 1.5 2.4 Result: recommended sensor with a measuring range of 5 ppm Calibration • Gener ate a stable chlorine concentra- tion in the measuring water, use DPD method If no chlorine in the measuring wat er is allowed, use an external calibration equipment and the DPD 1 method. De- tailed information can be found in chapter “9.5. Ordering chart accessories” on page 16 By the analytical deter- mination DPD 1 method (Reference value) By the analytical deter- mination DPD 1 method (Reference value) By analytical determina- tion, DPD 4-or (DPD 1 + DPD 3) methods Drift Approx. - % per month, in r eference conditions (25 °C, pH 7.2 in drinking wat er) Approx. - % per month, in r eference conditions (25 °C, pH 7.2 in drinking wat er) Approx. - % per month, in r eference conditions (25 °C, pH 7.2 in drinking wat er) Approx. - % per month, in r eference conditions (25 °C, pH 7.2 in drinking wat er) Electrical data Operating voltage • 9…30 V DC, filt ered and regulated (other- wise the probe may be damaged) The power supply is galvanically isolat ed inside of the sensor. 12…30 V DC, filt ered and regulated, RL: 50…900 Ω (e.g. through the 8619 multiCELL Transmitter/Control- ler) Not galvanically isolat ed inside of the sensor 12…30 V DC, filt ered and regulated, RL: 50…900 Ω (e.g. through the 8619 multiCELL Transmitter/Control- ler) Not galvanically isolat ed inside of the sensor 12…30 V DC, filt ered and regulated, RL: 50…900 Ω (e.g. through the 8619 multiCELL Transmitter/Control- ler) Not galvanically isolat ed inside of the sensor Current consumption Approx. 56…20 mA Approx. 4 mA (max. current by overloading: 30 mA) Approx. 4 mA (max. current by overloading: 30 mA) Approx. 4 mA (max. current by overloading: 30 mA)
6 | 17 Visit product website Sensor model Free chlorine sensor “Trace” (zero-chlorine) Free chlorine sensor with electr odes Free chlorine sensor with electr odes Total chlorine sensor with electr odes Output Voltage (4-wire): Analog signal 0…2000 mV (max. 2500 mV) Galvanically insu lated, that means potential-free Output r esistance: 1 kΩ Current (2-wire): Analog signal 4…20 mA (uncalibr at- ed, at pH 7.2 nominal slope 0.8 mA/ppm) Not galvanically insulat ed4.)
- Max. loop impedance (valid with T ype 8619 multiCELL3.)): 50 Ω at 12 V DC, 900 Ω at
30 V DC
Current (2-wire): Analog signal 4…20 mA (uncalibr at- ed, at pH 7.2 nominal slope 0.8 mA/ppm) Not galvanically insulat ed4.)
- Max. loop impedance (valid with T ype 8619 multiCELL3.)): 50 Ω at 12 V DC, 900 Ω at
Current (2-wire): Analog signal 4…20 mA (uncalibr at- ed, at pH 7.2 nominal slope 3.2 mA/ppm for variant 0.05…5 ppm or 0.8 mA/ ppm for variant 0.05…20 ppm) Not galvanically insulat ed4.)
- Max. loop impedance (valid with T ype 8619 multiCELL-): 50 Ω at
12 V DC, 900 Ω at
Fluid Water with similar char- acteristics to drinking water Drinking wat er, swim- ming pool water, sea water Sur factants are par- tially tolerated Swimming pool wat er, drinking water, service water, pro- cess water F ree of any sur- factants W ith constant pH value Drinking wat er, swim- ming pool water, sea water, brine (15 NaCl) Sur factants are par- tially tolerated Fluid flow rate 15…30 l/h mounted in analytical measure- ment chamber 8200, the measuring value depends on the flow rate (ensure constant flow rate) 15…30 l/h mounted in analytical measure- ment chamber 8200, the measuring value depends on the flow rate (ensure constant flow rate) Detailed information can be found in chapter “Slope versus flow r ate” on page 11. 15…30 l/h mounted in analytical measure- ment chamber 8200, the measuring value depends on the flow rate (ensure constant flow rate) Detailed information can be found in chapter “Slope versus flow r ate” on page 12. 15…30 l/h mounted in analytical measure- ment chamber 8200, the measuring value depends on the flow rate (ensure constant flow rate) Detailed information can be found in chapter “Slope versus flow r ate” on page 13. Fluid pH range pH 6.5…pH 9 Detailed information can be found in chapter “Slope versus pH” on page 10. pH 4…pH 9 Detailed information can be found in chapter “Slope versus pH” on page 11. pH 6…pH 8 (attention to the dissociation equili- brum HOCl, pH has to be constant) Detailed information can be found in chapter “Slope versus pH” on page 12. pH 4…pH 12, reduced dependence on pH value Detailed information can be found in chapter “Slope versus pH” on page 13. Fluid conductivity – 10 μS/cm…50 mS/cm (sea water) – 10 μS/cm…200 mS/cm (brine water) Fluid temperature 0…+ 32…+ 104 °F) 0…+ 32…+ 113 °F) 0…+ 32…+ 113 °F) 0…+ 32…+ 113 °F) No ice cr ystals in the measuring water. If the temperature ranges given for the holder and the used sensor are different, use the most restrictive range.
7 | 17 Visit product website Sensor model Free chlorine sensor “Trace” (zero-chlorine) Free chlorine sensor with electr odes Free chlorine sensor with electr odes Total chlorine sensor with electr odes Fluid pressure Max. 0.5 bar (7.26 PSI), operation with or with- out retaining ring, no pressure drops and/or vibrations Max. 3.0 bar (43.53 PSI), oper ation with retaining ring, no pressure drops and/ or vibrations Max. 0.5 bar (7.26 PSI), oper ation without retaining ring, no pressure drops and/or vibrations Max. 1 bar (14.5 PSI), oper ation with retaining ring, no pressure drops and/ or vibrations Max. 0.5 bar (7.26 PSI), oper ation without retaining ring, no pressure drops and/or vibrations Max. 3.0 bar (43.53 PSI), oper ation with retaining ring, no pressure drops and/ or vibrations Max. 0.5 bar (7.26 PSI), oper ation without retaining ring, no pressure drops and/or vibrations If the pressure ranges given for the holder and the used sensor are different, use the most restrictive range. Pressure drops are not allowed; the membrane could be damaged Process/Pipe connection & communication Process connection With probe holder Type 8200, see data sheet Type 8200 Electrical connection 5-pin M12 circular male connector 5-pin M12 circular male connector 5-pin M12 circular male connector 5-pin M12 circular male connector Approvals and certificates Directives CE directive The applied standards, which verify conformity with the EU Directives, can be found on the EU Type Examination Certificate and/or the EU Declaration of conformity (if applicable). Environment and installation Ambient temperature Operation 0…+ 32…+ 131 °F) S torage • P robe: unlimited time at + 5…+ °C (+ 41…+ 104 °F), fr ost protected, dry and without electrolyte Membr ane cap: – in original packing unlimit ed time at + 5…+ °C (+ 41…+ 104 °F) – used membr ane caps cannot be stored Electr olyte: + 5…+ °C (+ 41…+ °F), 1 year or until the specified e xpiry date in original bottle protected from sunlight Transport + 5…+ 41…+ 122 °F) 5…+ 41…+ 131 °F) 5…+ 41…+ 122 °F) 5…+ 41…+ 122 °F) Relative air humidity ≤ %, without condensation Height above sea level Max. 2000 m Degr ee of protection ac- cording to IEC/EN 60529 IP65 with cable plug mount ed and tightened 1.) Avoids fouling effects on the membrane in water without any chlorine for up to four weeks. 2.) Depends strongly on the water quality; values are recommendations for drinking water quality. 4.) A potential-free electrical connection is necessary as the chlorine sensor is not equipped with a galvanic isolation.
8 | 17 Visit product website 2. Mat erials 2.1. Chemical Resistance Char t – Bürkert resistApp Bürkert resistApp – Chemical Resistance Chart You want to ensure the reliability and durability of the materials in your individual application case? V erify your combination of media and materials on our website or in our resistApp. Start Chemical Resistance Check 2.2. Mat erial specifications Free chlorine sensor “Trace” (zero-chlorine) with membrane cap M48.2 1016 No. Element Material 1 5-pin M12 circular male con- nector PA
2 Sensor armature PVC-U
3 Retaining ring PETP
4 Slide ring PETP
5 Sealing (O-ring) NBR
6 Counter electrode Stainless steel 1.4571
7 Sealing (O-ring) NBR
8 Electrode holder PEEK
9 Reference electrode Silver/Silver Halide
10 Working electrode Gold
11 Vent (under hose ring) Stainless steel 1.4571
12 Hose ring –
13 Membrane holder Stainless steel 1.4571, PEEK
14 Membrane Microporous hydrophilic
15 Membrane cap PVC-U
16 Intern holder (G-holder) –
Free chlorine sensor with 3 electrodes with membrane cap M48.4 1215 No. Element Material 1 5-pin M12 circular male con- nector PA 6 Counter electrode Stainless steel 1.4571
11 Vent (under hose ring) –
13 Membrane holder •
S tainless steel 1.4571 for membrane cap M48.4E PEEK for membr ane cap M48.4S (sea water quality)
9 | 17 Visit product website Free chlorine sensor with 2 electrodes with membrane cap M20.2 1114 No. Element Material 1 5-pin M12 circular male con- nector PA
6 Sealing (O-ring) NBR
7 Electrode holder PEEK
8 Reference electrode Silver/Silver Halide
9 Working electrode Gold
10 Vent (under hose ring) –
11 Hose ring –
12 Membrane protection ABS
13 Membrane Semi permeable hydrophobic
14 Membrane cap PVC-U
Total chlorine sensor with 3 electrodes with membrane cap M48.4 1215 No. Element Material 1 5-pin M12 circular male con- nector PA 6 Counter electrode Stainless steel 1.4571 S tainless steel 1.4571 for standard membrane cap M48.4E PEEK for membr ane cap M48.4S (sea water quality)
10 | 17 Visit product website 3. Dimensions Note: Dimensions in mm, unless otherwise stated Free chlorine sensor with 3 electrodes with cap M48.4 Free chlorine sensor with 2 electrodes with cap M20.2 Total chlorine sensor with 3 electrodes with cap M48.4 ≈190 Ø25 ≈190 Ø25 Free chlorine sensor “Trace” (zero-chlorine) with cap M48.2 ≈190 Ø25 ≈190 Ø25 4. P erformance specifications 4.1. F ree chlorine sensor “Trace” (zero-chlorine) with membrane cap M48.2 Slope versus pH HOCl dissociation curve Chlorine sensor “Trace” pH value HOCl [%] / Slope [%] (pH 7.2 = 100 %) 4 5 6 7 8 100 120 140 160 9 10 11 12 Temperature: 25 °C / Flow rate: 30 l/h pH regulation: pH decreaser: H 2SO4 pH increaser: NaOH
11 | 17 Visit product website 4.2. F ree chlorine sensor with 3 electrodes with membrane cap M48.4 Slope versus pH HOCl dissociation curve Chlorine sensor 3 electrodes pH value HOCl [%] / Slope [%] (pH 7.2 = 100 %) 4 5 6 7 8 100 120 140 160 Temperature: 25 °C / Flow rate: 30 l/h pH regulation: pH decreaser: H 2SO4 pH increaser: NaOH Slope versus flow rate Chlorine sensor 3 electrodes Flow rate [l/h] Slope [%] 30 l/h = 100 %) 0 20 40 60 80 100 120 140 160 100 Temperature: 25 °C / pH value: 7.2 This values are only valid for the measuring chamber Type 8200
12 | 17 Visit product website 4.3. F ree chlorine sensor with 2 electrodes with membrane cap M20.2 Slope versus pH HOCl dissociation curve Chlorine sensor 2 electrodes pH value HOCl [%] / Slope [%] (pH 7.2 = 100 %) 6 6.5 7 7.5 8 100 120 140 160 8.5 Temperature: 25 °C / Flow rate: 30 l/h pH regulation: pH decreaser: H 2SO4 pH increaser: NaOH Slope versus flow rate Chlorine sensor 2 electrodes Flow rate [l/h] Steilheit [%] 30 l/h = 100 %) 100 120 140 160 Temperature: 25 °C / pH value: 7.2 This values are only valid for the measuring chamber Type 8200 30 40 50 60 70 80 90 100
13 | 17 Visit product website 4.4. T otal chlorine sensor with 3 electrodes with membrane cap M48.4 Slope versus pH HOCl dissociation curve Chlorine sensor 3 electrodes pH value HOCl [%] / Slope [%] (pH 7.2 = 100 %) 4 5 6 7 8 100 120 140 160 Temperature: 25 °C / Flow rate: 30 l/h pH regulation: pH decreaser: H 2SO4 pH increaser: NaOH 10 11 12 Slope versus flow rate Chlorine sensor 3 electrodes Flow rate [l/h] Slope [%] 30 l/h = 100 %) 0 20 40 60 80 100 120 140 160 100 Temperature: 25 °C / pH value: 7.2 This values are only valid for the measuring chamber Type 8200
14 | 17 Visit product website 5. P roduct installation 5.1. Installation not es Measuring chamber Description The requirements for maintaining and monitoring a constant flow rate of the analysed water, necessitate the use of an appropriate measuring chamber. Thus the sensor Type 8232 has to be installed in the analytical measuring chamber Type 8200. Otherwise the liability for a proper function of the sensor will be declined. See data sheet Type 8200 for more information. This analytical measurement chamber has to be installed so that the inserted chlorine sensor is in an upright position, and so that the incoming flow rate comes from the bottom up to the membrane. Gas bubbles at the membrane leads to incorrect measuring signals. For continuous flow monitoring, an inductive flow switch is available optionally, to be mounted in the analyti- cal measurement chamber Type 8200. Do not install the sensor in the main pipe. Measure only in bypass with use of the analytical measur- ing chamber Type 8200. 6. P roduct operation 6.1. Measuring principle Depending on the variant, the 8232 Sensor measures either the free chlorine or the total chlorine content. Total chlorine is the sum of free chlorine (disinfectant chlorine) and bound chlorine (Concentration of chlorine combined with organic and inorganic nitrogen compounds present in the water). The chlorine sensor is a two or three-electrode measuring system (depends on variant) covered with a membrane. The membrane cap filled with a special electrolyte, protects the working and reference electrodes from direct contact with the measuring water. With this measuring method, ionic substances in the water are held back by the membrane, whereas the substance to be determined (disinfectant or chlorine) can pass through the membrane without restriction. The diffusion of the substance through the membrane ensures that the concentrations on both sides of the membrane are equal and causes an electrical signal on the working electrode. The 2-electrode measuring system consists of a working electrode and a reference electrode, between which a certain voltage (po- larization voltage) is applied. The 3-electrode measuring system consists of a working electrode, a reference electrode and a counter electrode. The measuring signal at the working electrode is proportional to the concentration of the disinfectant or to the chlorine concentration and is amplified by the electronics of the sensor. The measuring signal is independent from the temperature of the measuring water due to an integrated temperature compensation. The calibration must be done on a transmitter/controller with a reference value. The transmitter Type 8619 multiCELL is suited and recommended, but any other suited transmitter can be also used. See data sheet Type 8619 for more information. 7. P roduct design and assembly 7.1. P roduct features Note: The following table gives an overview of the features for sensor selection. Feature details Free chlorine sensor Total chlorine sensor “Trace” (zero-chlorine) with 3 electrodes with 2 electrodes with electr odes Works in water without chlorine for up to 4 weeks Yes No No No Galvanically isolated Yes No No No Greatly reduced pH dependency Yes 1.) Yes No Yes Surfactants are partially tolerated Yes Yes No Yes Temperature compensation Yes Yes Yes Yes Zero-Point stability Yes Yes Yes Yes Membrane covered Yes Yes Yes Yes Two-wire device No Yes Yes Yes 1.) Chlorine sensor “Trace” has a higher pH dependency compared to the chlorine sensor with 3 electrodes.
15 | 17 Visit product website 8. Networking and combination with other Bürk ert products Example: Type 8232 Type 8200 Armatur es for analytical probes (measuring chamber) Type 8619 multiCELL - Multi-channel and multi-function tr ansmitter/ controller 9. Or dering information 9.1. Bürk ert eShop – Easy ordering and quick delivery Bürkert eShop – Easy ordering and fast delivery You want to find your desired Bürkert product or spare part quickly and order dir ectly? Our online shop is available for you 24/7. Sign up and enjoy all the benefits. Order online now 9.2. Recommendation r egarding product selection A complete chlorine measuring system consists of a chlorine sensor Type 8232, a circular female connector with cable, an analytical measurement chamber Type 8200, an electrolyte (the delivery includes one electrolyte bottle) and the multiCELL controller Type 8619 (analogue input board necessary. Software version of input board must be the version A.03.00 or higher; otherwise contact your local Bürkert support). Three or four different components must be ordered in order to select a complete device. The following information is required: Ar ticle no. of the analytical measurement chamber Type 8200 (see chapter “9.5. Ordering chart accessories” on page 16 or data sheet Type 8200 Ar ticle no. of the desired chlorine sensor Type 8232 (see chapter “9.4. Ordering chart” on page 16) Ar ticle no. of the circular female connector (see chapter “9.5. Ordering chart accessories” on page 16) Ar ticle no. of the multiCELL transmitter/controller Type 8619 (see data sheet Type 8619 9.3. Bürk ert product filter Bürkert product filter – Get quickly to the right product Y ou want to select products comfortably based on your technical requirements? Use the Bürkert product filter and find suitable articles for your application quickly and easily. Try out our product filter
16 | 17Visit product website 9.4. Or dering chart Sensor variant Description Measuring range Output Electrical connection Article no. [ppm] “Trace” (zero- chlorine) with 3 electrodes Measures at very low chlorine concentrations 0.005…2 0…2000 mV (max. 2500 mV) 5-pin M12 circular male con- nector 572928 With 3 electr odes Measures the concentration of free chlorine with greatly reduced pH dependency 0.05…20 4…20 mA 568523 With 2 electr odes Measures the concentration of free chlorine 0.05…20 568524 With 3 electr odes Measures the concentration of total chlorine with greatly reduced pH dependency 0.05…5 569698 With 3 electr odes Measures the concentration of total chlorine with greatly reduced pH dependency 0.05…20 573799 Further versions on request Additional Measurement parameter (chlorine dioxide, or others) Electrical connection Screw terminal 9.5. Or dering chart accessories Description Article no. Analytical measurement chamber Type 8200 569221 Flow switch for analytical measurement chamber, PNP, 2 m cable (optional) 775261 Photometer MD100, measuring range 0.01…6 ppm 566393 DPD 1 reagent (100 Tablets) 566394 For free chlorine sensor “Trace” (zero-chlorine) with electrodes (Article no. 572928 ) Electrolyte EMST1 gel, 100 ml 566060 Membrane cap M48.2 with intern holder (G-holder) 566057 5-pin M12 straight circular female connector moulded on cable (2 m, shielded) 438680 External calibration device (only needed if measuring water containing no chlorine) 565163 For free chlorine sensor with electrodes (Article no. 568523 ) Electrolyte ECS2.1 gel, 100 ml 566059 Membrane cap M48.4E for standard water quality 568557 Membrane cap M48.4S for sea water quality 568558 5-pin M12 straight circular female connector moulded on cable (2 m, shielded) 438680 For free chlorine sensor with electrodes (Article no. 568524 ) Electrolyte ECL1, 100 ml 566058 Membrane cap M20.2 566056 5-pin M12 straight circular female connector moulded on cable (2 m, shielded) 438680 For total chlorine sensor with electrodes (Article no. 569698 and 573799 ) Electrolyte ECP1.4 gel, 100 ml 569510 Membrane cap M48.4E for standard water quality 568557 Membrane cap M48.4S for sea water quality 568558 5-pin M12 straight circular female connector moulded on cable (2 m, shielded) 438680
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