Process Analyzer
Vaisala K-PATENTS® Saunders Body Refractometer
PR23W
Vaisala K-Patents PR23W Saunders Body Refractometer is designed for use in chemically aggressive solutions and ultra-pure fine chemical processes in large-scale production and in large pipelines. Installation through a flange or a clamp connection. Area classification Zone 2 (Class I, Div. 2); Intrinsically safe process refractometer PR-23-W-IA Area classification Zone 0 and Zone 1.
PR23W Refractometer comes together with Saunders (Diaphragm) valve body that can be mounted horizontally or vetically.
Features / Benefits
- PR23W Refractometer comes with a Saunders (DIAPHRAGM) valve body and can be mounted either in a
vertical or horizontal pipe. - Saunders body material is graphite cast iron, which provides a solid mechanical base.
- PFA-lining ensures the chemical resistance.
- Sensor wetted parts materials are Spinel or Sapphire (prism), PTFE (prism gasket),
PVDF or PTFE (Teflon®). - Sensor cover is stainless steel AISI 316L
- Digital sensing technology, even large amounts of suspended solids, bubbles or Color changes do
not affect the measurement or the curacy.
Applications
- Chlor-Alkali Industry
- Corrosive Chemicals
- Ultra Pure Fine Chemicals
- Semiconductor Industry and Electro-Chemicals
- Acetic acid CH3COOH, Ammonium fluoride NH4F, Ammonium hydroxide NH4OH, Ammonium
sulphate (NH4)2SO4
- Calsium hypochlorite Ca(ClO)2, Copper chloride CuCl2, Citric acid C6H8O7, Chromic acid CrO3
Ferric chloride FeCl2, Fluosilic acid, Formic acid HCO2H
- Hydrochloric acid HCl, Hydrofluoric acid HF, Hydrogen peroxide H2O2, Buffered HF
(BHF), Aqua Regia HNO3/HCl
- Lactic acid C2H4(OH)COOH
- Magnesium chloride MgCl2, Nickel chloride NiCl2, Nitric acid HNO3
- Phosphoric acid H3PO4, Potassium carbonate K2CO3 · 11/2 H2O, Potassium hydroxide KOH,
Potassium thiocyanate KSCN, Potassium nitrate KNO3
- Sodium bicarbonate NaHCO3, Sodium carbonate Na2CO3, Sodium chloride NaCl, Sodium
dichromate Na2Cr2O7 · 2H2O, Sodium hydroxide NaOH, Sodium hypochlorite NaClO2, Sulphuric
acid H2SO4 and more.
Specifications
Technical Details
| Refractive Index Range (Standard) | StandardFull range, nD=1.3200…1.5300 (corresponds to 0…100% b.w.), spinel prism |
| Refractive Index Range (Option) | nD=1.2600…1.5000, sapphire prism |
| Accuracy | R.I. ± 0.0002 (corresponds typically to ± 0.1% b.w.). Repeatability and stability correspond to accuracy |
| Speed of Response | 1s undamped, damping time selectable up to 5 min |
| Patented CORE-optics | No mechanical adjustments and digital measurement with 3648 pixel CCD element, 589 wavelength sodium D-line light emitting diode (LED), built-in Pt-1000 temperature sensor (linearization according to IEC 751) |
| Temperature Compensation | Automatic, digital compensation |
| Instrument Verification | With standard R.I. liquids and K-Patents documented procedure (ISO 9000) |
| Ambient Temperature | Sensor: min. -20°C (-4°F), max. 45°C (113°F) Indicating transmitter: min. 0°C (32°F), max. 50°C (122 °F) |
| Sensor Housing | AISI 316 L stainless steel sensor cover |
| Sensor Protection Class | IP67, Nema 4 |
| Exproof | Exproof by purging |
| Patents | US Patents US6067151 and US6760098B2, German Patent DE19855218 |
| Sensor PR-23-W | Process connection with PFA (Fluorinated ethylene propylene) lined Saunders (diaphragm) valve body 2″, 3″ or 4″; valve body material Graphite cast iron |
| Saunders Body Process Connection | DIN-flange DN50 PN 16/DIN-flange DN80 PN 16/DIN-flange DN100 PN 16/ ANSI- flange 4″ 150 lbs/ANSI-flange 3″ 150 lbs/ANSI-flange 2″ 150 lbs |
| Sensor Wetted Parts | Teflon® PTFE, prism gasket Teflon® PTFE, prism spinel or sapphire, O-ring Kalrez, adaptor sapphire |
| Sensor Weight | With 2″ Saunders body 15 kg (33 lbs)/3″ 26 kg (57 lbs)/4″ 33 kg (73 lbs) Process pressure: max. 10 bar (145 psi) |
| Process Pressure | Max. 10 bar (145 psi) |
| Sensor PR-23-M | Process connection with Thread G1/2″ (F) or Thread NPT 1/2″ (F) |
| Sensor Wetted Parts | Teflon® PTFE or Kynar® PVDF, prism gasket Teflon®, prism spinel (standard), O-ring Kalrez, adaptor sapphire |
| Sensor Weight | 5.5 kg (12 lbs) |
| Indicating Transmitter DTR | |
| Display | 320×240 pixel graphical LCD with LED backlight, keypad with 8 membrane keys |
| Current Output | Two independent current outputs, 4-20 mA, max. load 1000 Ohm, galvanic isolation 1500 VDC or AC (peak), hold function during prism wash |
| Ethernet Connection | Two independent current outputs, 4-20 mA, max. load 1000 Ohm, galvanic isolation 1500 VDC or AC (peak), hold function during prism wash |
| Power | AC input 100-240 VAC/50-60 Hz, optional 24 VDC, 30 VA |
| Alarms / Wash Relays | Two built-in signal relays, max. 250 V/3 A |
| Sensor Connectivity | One or two sensors can be connected to one DTR. Sensors independent with own parameter sets and usable in different applications. Two current outputs configurable independently to indicate process concentration or temperature of either sensor. |
| Indicating Transmitter Weight | 4.5 kg (10 lbs) |
| Transmitter Protection Class | Enclosure IP66, Nema 4X |
| Interconnecting Cable | Standard 10 m (33 ft), max. 200 m (660 ft) |
| Options | Cable fittings to Indicating transmitter European cable glands M20x1.5 or US conduit hubs |
Note: Specification are subject to change without notice.
