A COMPACT PROCESS REFRACTOMETER FOR IN-LINE MEASUREMENT OF CONCENTRATIONS PROCESS REFRA CT OMETER PR -03-D REFRACT CTOMETER PR-03-D SB:PR-03-D/0 TYPICAL APPLICATIONS CHL OR -ALKALI INDUSTR Y CHLOR OR-ALKALI INDUSTRY Ammonia, Ammonium chloride, Calcium hypochlorite, Caustic Soda, Chlorine, Soda Ash, Sodium bicarbonate, Sodium hypochloride, etc. FIBERS Acetate, Acrylics, Adipic acid, Caprolactam, Cyclohexanol, Cyclohexanon, Dimethylterephthalate, Dimethylformamide, Fiberglass, Hexamethylene diamine, Nylon salt, Polyamides, Polyesters, Rayon, Spandex, Vinyls. Finishing, coating and dyeing mediums of textiles. ELECTROL YTIC INDUSTRIES ELECTROLYTIC Alumina, Aluminium, Ammonia, Hydrochloric acid, Magnesium chloride, Phosphoric acid, Potassium hydroxide, Sodium chloride, Sodium dichromate, Sodium hydroxide, etc. ION EX CHANGE CHROMA TOGRAPHY EXCHANGE CHROMAT Regeneration chemicals of ion exchangers. PAPER INDUSTR Y INDUSTRY Alum, CMC, Latex, Sizing chemicals and binders, Starch, PVA, Retention chemicals. PLASTICS INDUSTRY Acrylate, Cellulose derivates, Polyamides, Polycarbonates, Polyethylene, Resins, Styrenes, Vinyls, etc. PO TASSIUM INDUSTR Y POT INDUSTRY Potassium carbonate, Potassium chloride, Potassium hydroxide, Potassium nitrate, Potassium thiocyanate, Trona SAL T AND SODIUM COMPOUNDS SALT Brine, Glauber's salt, Sodium carbonate, Sodium chloride, Sodium sulfate, Sodium sulfite, etc. SOAP AND DETERGENTS Fatty acids, Fatty alcohols, Caustic potash, Caustic soda, Glycerol, Oleum, Salt, Soda ash, Sodium bicarbonate MISC. CHEMICALS AND O THERS OTHERS Acetic acid, Amine oxide, Amino acid, Ammonium fluoride, Ammonium hydroxide, Ammonium nitrate, Ammonium sulphate, Citric acid, Copper chloride, Chromium trioxide (or Chromic acid), Ethylene glycol, Fluorosilicic acid, Formaldehyde, Formic acid, Gelatine, Hydrochloric acid, Hydrogen peroxide, Iron chloride, Lactic acid, Lubricating oils, Nickel chloride, Nitric acid, Oleum, Sodium dichromate, Sodium gluconate, Sodium hydroxide, Sulphuric acid, Urea and more. K-P ATENTS PROCESS REFRA CT OMETER PR -03-D -PA REFRACT CTOMETER PR-03-D IN-LINE REFRACTOMETER FOR EXACT PROCESS CONTROL Pipe sizes 1" (25 mm) Pipe sizes 2,5" (76.1mm) and larger EASY TTO O INST ALL AND INSTALL OPERATE OPERA TE K-Patents Process Refractometer PR-03-D provides truly accurate means for measuring liquid concentrations in various industrial applications. The mounting site is freely selectable, because the K-Patents PR-03-D sensor and indicating transmitter are separate. The sensor is mounted in a pipe bend by a clamp connection. For mounting in smaller pipes K-Patents provides a specially designed flow cell. The mounting design creates optimum flow velocity on the measurement surface providing a selfcleaning effect. The K-Patents PR-03-D offers many advantages when aiming at exact process control. Low and high concentration alarms can be configured to allow smooth real-time operation of the process. The measurement accuracy is not influenced by particles, bubbles, colour or temperature changes of the process liquid. Furthermore, the measuring system does not require recalibration or frequent maintenance. MEASUREMENT PRINCIPLE CALIBRATION The K-Patents PR-03-D comes precalibrated to 0-100 % b.w. for the user's specific solution. The calibration is made using certified refractive index liquids and refractive index/concentration tables. Prism Light source Digital CCD-camera Critical angle Process medium The light source sends light against the interface between a prism and the process solution, where the rays meet the surface at different angles. Light Source Prism The angle corresponding to the shadow line is called the Critical Angle of Total Reflection. The Critical Angle is a function of the concentration of the solution. Reflected light A digital CCD-camera detects the optical image and the shadow line. Refracted light EASY FINETUNING BY TION CALIBRATION FIELD CALIBRA Because the K-Patents PR-03-D is fully digital instrument the final calibration can be finetuned in-line according to the user's standard laboratory determinations. The user collects samples under different process conditions and takes simultaneous display readings. A computer program calculates new parameters and they are entered through the keyboard. VERIFICA TION USING VERIFICATION CERTIFIED REFRACTIVE INDEX LIQUIDS iti Cr Thus an optical image with a dark sector and a light sector is created. ca la ng Some rays are totally reflected; total reflection occurs. And some rays are partially reflected and partially refracted into the process solution. le Solution The camera has a row of photocells in one chip to transform the optical image point-by-point to an electrical signal. The exact shadow line position is located and converted to a reading in concentration units. If desired, the measurement range and the measurement unit can be freely changed by keyboard entry. No mechanical adjustments or parts are needed. The change can be done, when the instrument is installed and operating. The quality of the optical image is mathematically analysed and constantly monitored to ensure reliable measurement and high precision. The K-Patents PR-03-D calibration and accuracy can be easily verified on-site with Refractive Index liquids. Thus the calibration is traced to national standards. This is needed for the ISO 9000 or other quality systems. DESIGN Air cooling fins Image digitizer Thermal conductor Thermal isolation (Teflon®) Thermal isolation (Ceramic) CORE-Optics CCD-camera Light source Prism Temperature sensor Patented CORE (Compact Optical Rigid Element) Optics: All measuring components are in one solid module. The design provides error-free operation under vibrating conditions and varying temperatures and pressures. (US Patent No. 6067151) SPECIFICATIONS Refractive Index range, standard Accuracy: Speed of response: Damping time constant: Process temperature: Temperature compensation: Ambient temperature: Process pressure: Recommended flow velocity: Protected by the following US Patent: SENSOR: Wetted parts, standard: Wetted parts, option: Sensor weight: Process connection: Temperature measurement: Image detector: Light source: Sensor protection class: Hazardous area classification: Exproof: INDICATING TRANSMITTER: Transmitter protection class: Indicating Transmitter weight: Display: Keypad: Current output Serial output: Power: Alarms: INTERCONNECTING CABLE: Interconnecting cable length: OPTIONS: ORDERING INFORMATION: K -P ATENTS O Y -PA OY P.O. BOX 77 ELANNONTIE 5 FIN-01511 VANTAA, FINLAND PHONE: INT.+358-9-8256 640 FAX: INT.+358-9-8256 6461 [email protected] WWW.KPATENTS.COM R.I. 1.3100...1.5400 (corresponds to hot water...100 Conc% b.w.) with spinel prism R.I. ± 0.0002 (corresponds typically to ± 0.1% by weight). Repeatability and stability correspond to accuracy. 1.2 s undamped Selectable up to 5 min -20°C...130°C (-4°F...266°F) Automatic, by mathematical curve Sensor: max. 45°C (113°F), min. -20°C (-4°F), Indicating transmitter: max. 50°C (122°F), min. 0°C (32°F) max. 15 bar (200 psi) at 20°C (70°F) Above 1.5 m/s (5 ft/s) Patent No. US6067151 AISI 316L stainless steel, prism gaskets teflon, prism spinel Hastelloy C/ASTM C276, Titanium/ASTM B348 GR2, Nickel 200, Tantalum, Zirconium/Zr702 2 kg (4,4 lbs) Sandvik L clamp 76,1mm (2 1/2") or for smaller pipe sizes via -PFC Pipe Flowcell 25mm (1"), process connection ANSI 150 psi or DIN PN 25, material of construction AISI 316, Hastelloy C/ASTM C276 or Nickel 200 Built-in Pt-100 1024 pixel CCD-element Light emitting diode (LED) IP67, Nema 4X Zone 2 IIC T4 (KEMA No. EX-00.Y.1153) Exproof by purging Enclosure IP66, Nema 4X 4,5 kg (10 lbs) 256 x 128 pixels graphic liquid crystal (LCD) 18 membrane keys 4-20 mA/0-20 mA, max. load 1000 Ohm, galvanic isolation 1500 V DC or AC (peak) Built-in hold function during prism wash. RS485/RS232, galvanic isolation 500 V DC or AC (peak) 100-115 V/220-240 V, 50/60 Hz, 15 VA Two built-in signal relays, max 24 V, 500 mA, DC/AC Shielded cable, 2 twisted pairs with individual shields, 0.5 mm2 Digital transmission according to RS485 Standard 10 m (33 ft), max. 100 m (330 ft) Cable fittings to the indicating transmitter: European cable glands or US conduit hubs, External output unit 4-20 mA, Relay units for alarm, Stainless steel sensor cover - Desired scale, properties of process solution - Length of interconnecting cable - Process temperature and pressure range - Supply voltage and frequency - Process flow range and pipe diameter - Options and accessories K-P ATENTS -PA TENTS,, INC. 1804 CENTRE POINT CIRCLE, SUITE 106 NAPERVILLE, IL 60563 U.S.A. PHONE: (630) 955 1545 FAX: (630) 955 1585 [email protected] WWW.KPATENTS.COM We reserve right to technical alterations.