Electrodes and housings for ph and redox control in water and industrial process.

Transcription

1 Electrodes and housings for ph and redox control in water and industrial process. Quality at a reasonable price

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3 Contents ph and redox electrodes. General main components 4 installation 5 Key features 6 7 ph electrodes Gel electrolyte 8 Polymer electrolyte 10 Liquid electrolyte 11 With integrated A.T.C. 12 Temperature probes, A.T.C. 13 Redox, platinum and gold electrodes Gel electrolyte 14 Polymer electrolyte 15 Housings Immersion housings 16 Insertion housings 17 Flotation housings 17 Flow-through chamber 17 Accessories Cables 18 Connectors 18 Adaptors 19 Others 19 3

4 ph and redox electrodes, main components Head Connector S8, coaxial, for standard electrodes. MP-4, multiple, for CRISON electrodes with integrated temperature sensor. Fixed cable, no connector. Electrolyte Diaphragm Sensitive membrane Screw cap PG 13.5-type, standard to all manufacturers. Reference element This is a cell that supplies a stable potential (mv). There are a number of types: Silver wire (Ag) Galvanically coated with AgCl. This is the typical reference element for low-cost electrodes. Encapsulated AgCl crystals The silver wire comes into contact with a portion of the AgCl crystals inside a small glass tube. Ag + ion barrier In some electrodes, the tube with Ag/AgCl is lengthened to house a chemical substance which acts as a barrier to silver ions. This prevents the from clogging due to the formation and precipitation of AgCl and Ag 2 S. Sleeved silver wire It consists of silver wire coated with AgCl, and protected by a tube. This protects the reference element from possible alterations that may occur in the electrolyte. Electrolyte This is a highly-concentrated saline solution into which the reference element is submerged. It comes in 3 forms: liquid, gel or solid (polymer). Liquid electrolyte. Used for refillable electrodes. There are various types suitable for different applications. All of them are KClbased. Gel electrolytes. These are used in non-refillable or low maintenance electrodes. Most are glycerine gels. Electrodes with large PTFE include a polyacrylic gel, which allows little electrolyte diffusion through the. Solid electrolytes. These are also used in non-refillable electrodes. They are made of a conducting polymer. Diaphragm This is the point of union between the sample and the electrolyte. It is the critical part of the electrode as it has a direct influence on its life-span. A wide range of s are available. They vary according to manufacturer, application, quality and price. This catalogue features electrodes with ceramic, porous PTFE and open s. The ceramic is a chemically-inert, porous ceramic plate. These are the traditional s. They allow a small electrolyte flow towards the sample. The flow is greater in the pressurized electrodes. Porous PTFE, consisting of a large ring of porous PTFE through which contact between the electrolyte and the sample is possible. The conductivity of the sample is hardly altered, thanks to the low level of flow provided by the polyacrylic electrolyte. Open, which in fact should be called less. The sample and the electrolyte are in direct contact. There is no electrolyte flow. It is only used in electrodes with solid electrolyte (polymer). There are two types: - lateral orifice. This consists of an orifice in the body of the electrode. - circular, ring-like groove between the main body, the indicator electrode and the reference electrode. It facilitates a high degree of contact with the sample. The glass membrane The composition of the glass membrane affects characteristics such as sensitivity, chemical, thermal and mechanical resistance of the electrode or the scale of measurement, e.g. a ph of , of There are membranes with specific types of glass, e.g. to measure ph in the presence of a certain concentration of HF. There are also special membranes for measuring at extremely low temperatures (-30ºC). A large membrane is a symbol of quality. The electrode response depends directly on the quality of the membrane. ORP Electrodes (Oxidation-Reduction Potential, Redox) These electrodes are also called metallic electrodes and are made of platinum or gold. They are used to measure the oxidation or reduction character of a solution. They have undergone the same changes as ph electrodes. Insofar as their connectors, reference elements, electrolyte and s are concerned, they come in the same forms, but the glass membrane is replaced with a ring or wire made from a noble metal, usually platinum. Platinum: recommended for strongly oxidizing samples. Gold: recommended for acid samples, or containing Cr or Fe. This catalogue does not contain redox electrode versions with integrated temperature sensors, because the measuring instrument does not compensate for it. Metallic ring or wire 4

5 installation For the correct installation of a ph or redox, conductivity or D.O. sensor in a process, a housing must be used. It is designed to: Protect the electrode against mechanical impact. Prevent splashing, flooding and chemical attack on electrode and cable connectors. Ensure that the sensitive part of the electrode is immersed. Increase certainty as regards the measurement. Extend electrode life. Facilitate sensor maintenance. For installing in reservoirs, channels, tanks... 1 Immersion housing for one sensor. 2 Immersion housing for various sensors, with automatic sensor washing. 3 Floating housing. 4 Lateral insertion housing. 1 Pipe installation 5 and 6 Vertical insertion housings. 7 Flow-through chamber. 4 Lateral insertion housing (vertical pipe). Direct pipe installation, without housing Some electrodes are designed for their direct installation. This makes them cheaper. 8 Housed electrode Electrode installed in adapter with 1/2 screw. 10 Electrode installed in adapter with PG 13,5 screw. Pressurisable electrodes installation Some applications or industrial processes require electrodes that could be pressurised externaly to ensure high electrolyte flow. So, these electrodes must be installed in appropiate pressurisable housing

6 Key features Code Measurement Indicator metal: platinum Indicator metal: gold Liquid electrolyte Gel electrolyte Polymer electrolyte Protected reference system Clogging-free HF resistance Resistance to high temperatures 100 C Can be steam-sterilised Can be placed in autoclave Integrated ATC Fixed-cable Low-cost Page ph ph ph ph ph ph ph ph ph ph O.R.P O.R.P O.R.P O.R.P O.R.P O.R.P O.R.P ph ph ph 11 Technical concepts Electrolyte: liquid, gel or polymer. See essential parts of the electrode, page 4. Protected reference system. The purpose is to prevent reference element contamination and keep the potential as stable as possible. Clogging-free. Either due to the shape, large, no, open, or the type of electrolyte. HF resistance. The membrane s resistance depends on the HF concentration and ph of the sample. Resistance to high temperatures. As continuous working condition or occasional high temperatures, e.g. sterilisation. Can be steam-sterilised. Resists sterilisation-in-place (SIP procedure). Can be placed in autoclave. May be sterilised in autoclave. Electrodes with integrated ATC. They allow measuring ph and temperature simultaneously at the same point. Their main advantage is that they make installation simpler. The two signals ph and temperature are transmitted to the instrument using a single probe and a single cable. Fixed-cable electrodes. When decision making is determined by price. They are cheaper because there are no head and cable connectors. Low-cost electrodes. These are simple electrodes for uncomplicated applications or economical electrodes due to important production numbers. Indicator metal Platinum: recommended for strongly oxidizing samples. Gold: recommended for acid samples, or containing Cr or Fe. 6

7 for ph and redox electrodes Application ph O.R.P. Observations Water treatment Potable water Boiler water Coolants Cooling water Low conductivity samples. Electrodes with a large are required. Gas scrubbing towers / In some cases, these samples contain HF, so HF-resistant electrodes might be required. Agriculture Can be installed directly on a pipe using a 20 mm 3-piece adapter socket. Swimming pools / 38 / / Normally precision electrodes at competitive prices are required. Fish-farming / 40 Waste water treatment Industrial waters / 31 / / 55 Urban waters These are very dirty samples, so an electrode with cloggingfree Galvanising industry / 31 will be required. Heavy-metal precipitation / 35 Detoxification / In very acid media with chromium CRISON recommends measuring ORP with gold electrodes. Water with oil An electrode with an open guarantees correct measurement in this type of medium. Tannery waters / 64 CRISON recommends using a highly-resistant electrode. Foodstuffs and beverages Waters for beverages / 33 Dairy products / 64 Periodic maintenance of these electrodes should be carried out using a protein-cleaning solution. Wines / / 55 This electrode avoids problems with clogged s caused by the sample. Purification of beet-water / 65 / 66 These applications require highly-resistant electrodes, both for the Production of edible fats / 65 / 66 medium to be measured and for the CIP and sterilisation processes. CIP processes / 65 / 66 Electrodes resistant to highly-alkaline media and high temperatures should be used. Soft drinks Pharmaceutical industry Fermentors / 66 High-precision electrodes, resistant to sterilisation with steam Biotechnology / 66 and CIP processes should be used. Chemical Industry Starch production / 65 / 66 Electrodes resistant to high temperatures and adequate for viscous samples should be used. Colourings Paper bleaching / 65 / 66 An electrode with a and reference system which are difficult to contaminate should be used. Petrochemical industry / 65 / 66 Products containing HF The HF concentration and the ph of the sample should be controlled. 7

8 ph electrodes with gel electrolyte These are low maintenance electrodes, as they do not require monitoring of electrolyte level For clean waters HF resistant Pressurised electrolyte. Internal which The resistance of the The gel electrolyte has been protects the reference membrane is directly pressurised in factory at , & Encapsulated reference element element from contamination. related to the HF concentration and the ph of the bar. The internal overpressure ensures a gradual outflow of Internal Sensitive membrane Manometer Ceramic Silver ion barrier Well priced. Swimming pools, drinking water, gas scrubbing towers, boiler waters, detoxification, outlet waters from waste water sample. ph@20ºc F - limit (ppm) without limit electrolyte through the, preventing its blocking. Industrial process, water treatment, wastewater treatment. treatment plant, etc. Waters containing HF. A slow but progressive loss of internal pressure begins once Low-conductivity solu- Samples with a HF the is unsealed tions. concentration higher than The pressurisation lasts on Sleeved reference element Viscous or dirty solutions able to clog the shown in the table. average 1 year, but this will always depend on the applica- PTFE porous quickly. tion & Reference element S8 Ceramic Ø 12 Mounting In immersion housings (In 61, In 63 and In 68), in insertion housings (In 76, In 77 and In 78), in floating housings (FL 60) and flow-through chamber (CR 60) can be installed directly on pipes or reactors or houings with 3/4 NPT thread can be installed in a 20 mm 3-piece adapter socket. a=120 Cables Electrodes with S8 connector are connected to coaxial cables with AS9 connector. Specifications Electrode code ph measuring range Operating temperature (ºC) Max. operating pressure (bar) 6 2,5 Reference element encapsulated Ag / AgCl crystals Ag / AgCl with Ag + ion barrier Diaphragm ceramic ceramic Electrolyte gel gel Body material glass glass Temperature sensor Thread PG 13,5 PG 13,5 Connector S8 S8 8

9 53 30 With a large ring of porous PTFE Low cost. These are fixed-cable elec Housed electrode. This is a PVC probe with an For pipes. It has the same features, applica- Its large, made of trodes with high-performance integrated electrode. tions and limitations as the 53 33, porous Teflon, facilitates the and very competitive prices. The plastic body protects the except for the type of mounting. contact between the electrolyte sensor from possible impact. Its head is compatible with 20 mm and the sample. The two ¾ NPT screws make 3-piece adapter. This feature The sleeved reference element is Swimming pools, potable the installation easy. makes the direct installation on the highly resistant to contamination waters, aqueous samples in pipe easy at very competitive price. by external ions. general. It also allows an effortless calibra- This is the electrode recommended Aqueous samples in general. tion with buffers. when the lifespan of others is Gas scrubbing towers. Waste lower than expected. Low-conductivity solutions. waters. Clean waters. Tanks Products with colloids or solids with stirred elements. Recommended for irrigation in suspension. waters. Waste waters, galvanising baths, osmosis processes, de-mineralised Samples containing S 2- or waters, dirty and viscous samples, substances which react with Ag + etc. ion. Ø 27 Ø m 5 m 5 m Ø 30 R 3/4 a=90 NPT BNC BNC BNC sleeved Ag wire coated with AgCl Ag wire coated with AgCl Ag wire coated with AgCl encapsulated Ag / AgCl crystals ring of porous PTFE ceramic ceramic ceramic gel gel gel gel glass exterior PC / interior glass exterior PVC / interior glass glass PG 13,5 PG 13,5 3/4 NPT 20 mm 3-piece adapter socket S8 BNC BNC BNC 9

10 ph electrodes with polymer electrolyte These are long-life electrodes. The open facilitates a direct contact between the reference electrolyte and the medium to be measured. Thanks to this contact, the classic problem of clogging is avoided. The reference electrolyte is a solid polymer where variations in concentration take place very slowly, so that the reference potential remains invariable for a long time Open circular Pressure compensator Reference element Internal open Reference element 2 open s (lateral orifice) For wastewater. Long life span in difficult media. Very competitive price. Dirty waters, with mug, waste water, emulsions, etc. Rapid alteration of the polymer with: - solutions with ph <2. - distilled and de-mineralised waters. - temperatures above 80ºC. - pressures over 2 bar. This electrode is not recommended for installation on pipe For extremely difficult media. This is a high-performance electrode. It uses a high-performance polymer electrolyte, which allows it to work under the most difficult conditions. It can be sterilised using steam or autoclave. Samples with dyes, pigments and colourings. Fermentation. Sugar industry. Samples with oil. Resistant to sterilisation with steam and in autoclave. Resistant to CIP processes Organic solvents. S8 The has an internal pressure compensator. The dilation of the polymer taking place at high temperatures, is absorbed by compressing an internal elastomer, preventing the electrolyte from leaking out through the s. Ø 12 Mounting In immersion housings (In 61, In 63 and In 68), in insertion housings (In 76, In 77 and In 78), in floating housings (FL 60) and flow-through chamber (CR 60). Cables Electrodes with S8 connector are connected to coaxial cables with AS9 connector. a=120 Specifications Electrode code ph measuring range Operating temperature (ºC) Max. operating pressure (bar) 2 6 Reference element encapsulated Ag / AgCl crystals encapsulated Ag / AgCl crystals Diaphragm open circular 2 open, lateral orifice Electrolyte polymer polymer Body material glass glass Temperature sensor Thread PG 13,5 PG 13,5 Connector S8 S8 10

11 ph electrodes with liquid electrolyte These are the classic high-performance process electrodes with very accurate and rapid response. They can be steam-sterilised. They should be installed in pressurisable probes. The level of electrolyte must be checked periodically and refilled, if necessary. Advantages Three ceramic s. Silver-ion barrier. Rapid, accurate response. Sterilisable in situ. These electrodes resist where other models have short lifespan. The external overpressure ensures a great contact between the electrolyte and the sample through the s, preventing their clogging and Long life in difficult conditions. Common features Sensitive membrane up to ph 14. Reference system: reference element, electrolyte and s. : biotechnology, sugars, yeasts, starch, distilled waters, dyes and colourings. : The level of electrolyte needs to be checked periodically. They should be installed in pressurisable probes. Differences The electrode length a = 120 mm a = 250 mm & Reference element Ag + ion barrier S7 Sensitive membrane 3 ceramic s Mounting On pressurisable housings. They are compatible with all pressurisable housings on the market. Cables Connected to coaxial cables with AS9 connector. Ø 32 Ø 12 a=120 a=250 Specifications Electrode code ph measuring range 0 14 Operating temperature (ºC) Max. operating pressure (bar) 6 Reference element Ag / AgCl with Ag + ion barrier Diaphragm 3 ceramics Electrolyte CRISOLYT V Body material glass Temperature sensor Thread Connector S7 11

12 ph electrodes with integrated ATC The integrated ATC Pt1000 allows simultaneous measurement of ph and temperature at the same point. It makes calibration easier Pt 1000 temperature sensor Pt 1000 temperature sensor Reference element PTFE porous Open circular With a large ring of porous PTFE. Its large, made of porous Teflon, facilitates the contact between the electrolyte and the sample. The sleeved reference element is highly resistant to contamination by external ions. This is the electrode recommended when the duration of others is lower than expected. Waste waters, galvanising baths, osmosis processes, demineralised waters, dirty and viscous samples, etc For waste waters. Long life span in difficult media. Very competitive price. Dirty waters, with mud, wastewaters, etc. Rapid alteration of the polymer with: - solutions with ph <2. - distilled and de-mineralised waters. - temperatures above 80ºC. - pressures over 2 bar. This electrode is not recommended for installation on pipe. Mounting In immersion housings (In 61, In 63 and In 68), in insertion housings (In 76, In 77 and In 78), in floating housings (FL 60) and flow-through chamber (CR 60). MP-4 Cables Connected to cables with MP-4 connector. Ø 12 a=120 Pt 1000 sensor Pt 1000 sensor Specifications Electrode code ph measuring range Operating temperature (ºC) Max. operating pressure (bar) 5 2 Reference element sleeved Ag wire coated with AgCl encapsulated Ag / AgCl crystals Diaphragm ring of porous PTFE open circular Electrolyte gel polymer Body material glass glass Temperature sensor Pt 1000 Pt 1000 Thread PG 13,5 PG 13,5 Connector MP-4 MP-4 12

13 Temperature probes, C.A.T. Connecting one of these probes to CRISON ph-meters, the user measures ph and temperature simultaneously and display both values on the screen. This feature allows: To compensate the temperature effect on the electrode. To use the ph-meter as a precision thermometer. These are long-life sensors and, unless broken, they will last a lifetime. Pt 100 / Pt 1000 Traditionally, the most commonly-used precision temperature sensors were the Pt 100 type, with a temperature-dependent resistance (TDR) of 100 at 0ºC and a coefficient of 0.38 / ºC. Nowadays people are increasingly using Pt 1000 probes, R = 1000 at 0ºC and 10-times greater coefficient. This makes measuring temperature easier and reduces the distortion caused by the length of the cable. Mounting Temperature probe: In immersion probes In 61, In 63 and In 68. In insertion probes In 76, In 77 and In 78. Since they must always be installed next to ph electrodes, CRISON recommends the use of a multisensor housing. In 68, whichs allow up to 3 sensors to be installed together. In flotation probes FL 60 and FL 69. In flow-through chamber CR Double temperature probe. The temperature compensator is a double temperature probe, with 2 TDR sensors, one Pt 100 and the other Pt 1000 inside. It is held by a PG 13.5 screw cap, avaliable in CRISON housings. Since it has two sensors, one Pt 100 and the other Pt 1000, the probe is compatible with both instruments. MP Temperature probe for pipes. The is a temperature probe with integrated Pt 1000* sensor. It is installed directly on a pipe with a 1/2 NPT thread. The probe is very robust, because of its stainless-steel sheath. * Upon request, Pt Temperature probe: directly on pipes. Cables They are connected using multiple cables with MP-5 connector. CRISON MP-5 R 1/2 NPT Specifications Pt 100 sensor Pt 1000 sensor Pt 1000 sensor Sensor code Sensor type Pt Pt 1000 Pt 1000, (Pt 100 upon request) Operating temperature (ºC) Max. operating pressure (bar) 6 6 Number of sensors 2 1 Body material pyrex glass stainless steel Thread PG 13,5 1/2 NPT Connector MP-5 MP-5 13

14 Metallic, redox electrodes, made of platinum and gold They are very similiar to combined ph electrodes, but the glass membrane is replaced with a ring or wire made from platinum or gold Platinum electrode for clean waters Made of gold for clean waters Made of platinum large PTFE. Internal which Identical to 53 53, but Its large, made of 53 53, protects the reference with gold as indicator porous Teflon, facilitates the & element from contamina- metal. contact between the electro- Gel electrolyte Platinum or gold wire Ceramic tion. Well priced. Acid samples or containing Fe or Cr. lyte and the sample. The sleeved reference element is highly resistant to contamination by external ions. Swimming pools, drinking This is the electrode recom water, gas scrubbing mended when the duration of Gel electrolyte towers, boiler waters, detoxification, urban Low-conductivity solutions. others is lower than expected. Pt wire PTFE porous waters, etc. Viscous or dirty solutions able to clog the Waste waters, galvanising quickly. baths, osmosis processes, de- Low-conductivity solu- mineralised waters, dirty and & tions. viscous samples, etc. Gel electrolyte Pt wire Ceramic Viscous or dirty solutions able to clog the quickly. S Polymer electrolyte Pt wire Open circular Ø 12 Mounting In immersion housings (In 61, In 63 and In 68), in insertion housings (In 76, In 77 and In 78), in floating housings (FL 60) and flow-through chamber (CR 60) can be installed directly on pipes or reactors or houings with 3/4 NPT thread can be installed in a 20 mm 3-piece adapter socket. a=120 Cables Connected to coaxial cables with AS9 connector. Specifications Electrode code ph measuring range Operating temperature (ºC) Max. operating pressure (bar) Indicator metal platinum gold platinum Reference element encapsulated Ag / AgCl crystals encapsulated Ag / AgCl crystals sleeved Ag wire coated with AgCl Diaphragm ceramic ceramic ring of porous PTFE Electrolyte gel gel gel Body material glass glass glass Thread PG 13,5 PG 13,5 PG 13,5 Connector S8 S8 S8 14

15 53 55 Made of platinum for wastewaters Made of platinum low cost Made of platinum housed electrode Made of platinum for pipes. Long lifespan in difficult media. These are fixed-cable elec- This is a PVC probe with an It has the same features, appli- Very competitive price. trodes with high-performance integrated electrode. cations and limitations as the and very competitive prices. The plastic body protects the 53 53, except for the type of sensor from possible impact. mounting. Dirty waters, with mug, waste The two ¾ NPT screws make Its head is compatible with 20 mm water, emulsions, etc. Swimming pools, potable installation easy. 3-piece adapter. This feature waters. Aqueous samples in makes the direct installation on the general. pipe easy at very competitive price. Rapid alteration of the polymer Aqueous samples in general. It also allows an effortless calibra- with: Gas scrubbing towers. Waste tion with buffers. - solutions with ph <2. Low-conductivity solutions. waters. Clean waters. Tanks - distilled and de-mineralised Products with colloids or solids with stirred elements. waters. in suspension. - temperatures above 80ºC. - pressures over 2 bar. Samples containing S 2- or This electrode is not recommended substances which react with Ag + for installation on pipe. ion. Ø m 5 m 5 m Ø 30 Ø 12 a=90 R 3/4 NPT BNC BNC BNC platinum platinum platinum platinum encapsulated Ag / AgCl crystals Ag wire coated with AgCl Ag wire coated with AgCl encapsulated Ag / AgCl crystals open circular ceramic ceramic ceramic polymer gel gel gel glass external PC / internal glass external PVC / internal glass glass PG 13,5 PG 13,5 3/4 NPT 20mm 3 piece adapter socket S8 BNC BNC BNC 15

16 Housings Immersion housing For reservoirs and tanks. Sensor cleaning. In 63 and In 68 are designed for automatic In 61 Immersion housing. Manufactured in two types of material: PVC and PVDF In 63 Immersion housing with sensor cleaning. Designed to clean sensors In 68 Immersion housing with sensor cleaning, multisensor. sensor cleaning with a pressurized jet of air, water or other liquid directly aimed at the sensitive part of the electrode. Deposits forming on and 2 different length. Installation - Can be mounted either on automatically. Installation - Can be mounted either on a Housing of three sensors. Designed to clean sensors automatically. Installation the electrodes is one of the most frequent a brace, held in place by brace, held in place by gravity, - Can be mounted either on a causes of problems when measuring ph/orp. gravity, or on the perforated or on the perforated cover of a brace, held in place by gravity, or These deposits are caused by continual expo- cover of a tank. tank. on the perforated cover of a tank. sure of the sensor to a dirty or contaminated - Using a DN 50 3-piece - Using a DN 63 3-piece - Using a DN 75 3-piece adapter. medium. Periodic cleaning is absolutely neces- adapter. adapter. Important: When less than three sary to prevent formation of undesirable coat- sensors are installed, the holes ings on the sensor and thus ensure that the without a sensor must be covered system works correctly. Multisensor housing. (see PG 13.5 cap, page 19). The In 68 is capable of housing three sensors and control several different parameters at a single point. Insertion housings To install on a pipe or side-mounted on tank. Working pressure Ø 50 Ø 63 Ø 75 The pressure that the housings can support will depend on the material and the temperature to which they are subjected. (ºC) Stainless steel PVDF PVC (bar) Pressure / Operation temperature graph L = 800 or 1600 PVC Ø 42 PVDF Ø 40 L = 800 or 1600 Ø 50 L = 800 or 1600 Ø 63 Flotation housings Especially recommended for installation when the level of the liquid to be measured may vary. Flow-through chamber To install on a pipe where the direct sensor installation is not possible. All housings in this catalogue are designed to house sensors with PG 13.5 thread. 16 *Ask for other lenghts. Specifications 85 Model In 61 In 63 In 68 Code Material PVC PVDF PVC PVDF PVC PVDF PVC PVDF PVC Length (mm) * Operating temperature (ºC) Operating pressure (bar) atmospheric atmospheric atmospheric Cleaning pressure (bar) max 1,5 max 1.5 O-rings nytrile viton nytrile viton nytrile viton nytrile viton nytrile Compatible sensors with PG 13,5 thread with PG 13,5 thread with PG 13,5 thread Number of sensors 1 1 1, 2 or 3 Installation on a brace held in place by gravity or using a 3-piece adapter

17 In 76 Insertion housing. In 77 Insertion housing. In 78 Insertion housing. FL 60 Flotation housing. CR 60 Flow-through chamber. The bottom section is like a transparent This is an adaptor to This housing over- Made of stainless Especially recommended beaker which can be taken apart easily to convert the electrode s comes the limitations steel. It offers excel- for installation when the perform maintenance work: sensor calibra- PG13.5 thread to of the In 76. During lent sensor s protec- level of the liquid to be tion and cleaning. 3/4 NPT, the letter calibration and main- tion. It overcomes the measured may vary. Installation being standard in pipe- tenance, the user limitations of In 76. Installation Installed by creating a by-pass, so as not line industry. It also needs only to unscrew Installation These are installed by to interfere with the normal flow of offers excellent protec- the knurled bolt on Mounted on DN 25 fixing a stainless-steel liquid. It also allows sensors to be tion for the glass part of the housing to extract 3-piece adapters. guide-rail, with a replaced and maintained without inter- the sensor. the housing and maximum diameter of rupting the process. It is attached to Very economical! sensor without 20 mm, on the wall of pipes using 3/4 NPT pipes. handling the cable the reservoir, tank or Calibration and cleaning connector at all. reactor. Important: When using a re-circulation are fairly laborious. First Available in PVC and chamber to install less than three sensors, the electrode cable PVDF. the other holes must be covered. must be unscrewed, Installation (See PG 13.5 cap, page 19) followed by the part Mounted on DN 25 which protects the elec- 3-piece adapters. trode, with the electrode still inside. Installation Screws directly onto pipe with ¾ NPT screw. 271 Ø 90 Ø Ø 27 R 3/4 Ø R PG 13,5 R 3/4 65 In 76 In 77 In 78 FL 60 CR PVC PVC PVDF s. steel PVC PVC and macrolon depending on temperature depending on temperature depending on temperature atmospheric 2 viton viton viton nytrile nytrile with PG 13,5 thread with PG 13,5 thread with PG 13,5 thread with PG 13,5 thread with PG 13,5 thread , 2 or 3 R 3/4 NPT DN 25 3-piece adapter DN 25 3-piece adapter guide rail max. Ø 20 mm R 3/4 NPT 17

18 Accessories Cables Coaxial cable with AS9 connector S7 Connectors 91 06, straight BNC connector. Easy mounting, no tool is needed. AS9 Ø 5 S8 The AS9 connector is IP 65 waterproof. The coaxial cable supports temperatures of between -30 and 90 C , L-shaped BNC connector. For connecting an electrode with an integrated ATC to the PH 27, 28 and 29. Code 10 03, coaxial cable with AS9 connector, 3 m , coaxial cable with AS9 connector, 5 m , coaxial cable with AS9 connector, 10 m , coaxial cable with AS9 connector, 15 m , coaxial cable with AS9 connector, 20 m , coaxial cable with AS9 connector, 25 m , MP-4 connector. For coaxial cable. Used for ph electrodes with integrated ATC. Multiple cable with MP-4 connector For CRISON ph electrodes with integrated ATC. MP-4 Ø 5 Made up of 1 coaxial cable and 2 conductors. MP-4 connector is IP 67 waterproof. This cable supports temperatures of between -30 and 80 C , MP-5 connector. For connecting CRISON conductivity cells and temperature probes. Code 93 00, multiple cable with MP-4 connector, 3 m , multiple cable with MP-4 connector, 5 m , multiple cable with MP-4 connector, 10 m , multiple cable with MP-4 connector, 15 m , AS9 connector. For coaxial cable Ø5 mm. Multiple cable with MP-5 connector For conductivity cells and temperature probes with MP-5 connector. MP-5 Ø 6 CRISON , 962 connector. For coaxial cable extension, Ø5 mm. Comprises a screened, 8-conductor cable with an integrated, 5-contact MP-5 multipin connector. The MP-5 connector is IP 67 waterproof. This cable supports temperatures within -20 and 90 C. Code 90 44, multiple cable with MP-5 connector, 3 m , multiple cable with MP-5 connector, 5 m , multiple cable with MP-5 connector, 10 m , multiple cable with MP-5 connector, 15 m , multiple cable with MP-5 connector, 20 m. 18

19 Electrode adapters R PG 13, , DN 50 3-piece adapter. Made of PVC. To install In 61 immersion housings. This is a 3-piece adapter whose internal diameter has been modified, 50x43. Note: The DN 63 and DN 75 are standard adapters which can be found in any specialised shop. R 3/4 NPT Other 61 90, cablepress, for coaxial cable Ø 5. 2 units per pack. R PG 13,5 R 1/2 NPT 61 91, cablepress, for coaxial cable Ø 7. 2 units per pack , Electrode adaptor, for mounting electrodes with PG 13,5 thread onto pipes. Made of PVC , sensor connection protector. With 3/4 NPT thread. Made of PVC , Electrode adaptor, for installing electrodes directly onto pipes with PG 13,5 thread. Made of PVC , Electrode adaptor, for installing electrodes and onto pipes. Thread 1/2 NPT. Made of PVC. Housing adapters DN 25 weld-in sockets For installing In 77 and In 78 insertion housings , PG 13,5 screw-cap. For multisensor immersion housings and flow-through chambers. Made of PVC. Straight... Code 61 09, in PVC , in PVDF , in PP , in stainless steel , tube-to-tube joint, Ø 6 mm. Used for installing In 63 and In 68 housings with sensor cleaning system. Part which joints the cleaning housings and the air or water tube. Inclined... Code 61 10, in PVC , in PVDF , in PP , in stainless steel. 19

20 Other CRISON sensors... Conductivity cells and D.O. electrodes. Authorised CRISON dealer: Code E, April 2006 edition CRISON INSTRUMENTS, S.A. Riera Principal ALELLA Tel Fax The specifications and products of this brochure are subject to change without notice.