Vaisala K-PATENTS® Sanitary Compact Refractometer
PR23AC
Vaisala K-PATENTS® Sanitary Compact Refractometer
Vaisala K-PATENTS® Sanitary Compact Refractometer
provides accurate means for measuring Brix and liquid concentrations in small pipe line sizes of 2.5 inch and smaller.
The PR-23-AC sensor is installed in the pipe bend. It is angle mounted in the outer corner of the pipe bend directly or through a flow cell and 3A Sanitary clamp or Varivent® connection. This way the best flow conditions and selfcleaning effect can be achieved.
The measurement range covers 0-100 Brix. The accuracy is ± 0.1 Brix and the measurement is automatically temperature compensated. Low and high concentration alarms can be configured. Because of the digital sensing technology, even large amounts of suspended solids, crystals, bubbles or color changes do not affect the measurement or the accuracy.
Features / Benefits
- Universal calibration of each PR23AC sensor: All sensors are freely interchangeable.
- Full measurement range Refractive Index (nD) 1.3200 – 1.5300, which
corresponds to 0-100 Brix/Conc. - Meets 3A Sanitary Standard and tested for CIP clean-ability according to EHEDG.
- Withstands CIP cleaning.
- Completely digital system: particles and bubbles do not affect operation or accuracy.
- Patented CORE-optics: no drift, no re-calibration, no mechanical adjustments.
- Includes an Ethernet communication solution for data-logging. Together with the user’s own
procedural and administrative user controls this facilitates electronic data records for FDA 21
CFR Part 11 adherence. - Effective heat transfer and isolation using Teflon® and ceramics in the sensor provide safe
operation also in higher process temperatures (max. 130 °C/266 °F. - Fast process temperature measurement by built-in Pt1000 and automatic temperature
compensation. - Calibration and accuracy traceability with easy on-site instrument verification using standard
Refractive Index liquids. - PR23AC is ATEX approved for Zone II, area classification EX II 3 G EEx nA II T4.
- ATEX approved for Zones 0 and 1, area classification ATEX II 1G Ex ia IIC T4 (only Intrinsically
safe PR-23-AC-IA with single sensor transmitter STR ). - FM approved for Class I, Div. 2, Groups A, B, C and D, T6.
- CSA certified for Class I, Div. 2, Groups A, B, C and D, T4.
- cCSAus certified for Electrical Safety, Sensor: Class I, Pollution Deg. 3; Transmitter: Class I,
Pollution Deg. 2; Installation Cat. II.
Applications
PR23AC Refracometer is used in the following applications:
- Pharmaceutical Chemicals
Acetylsalicylic acid, Calcium gluconate, Glycerophosphates, Chloral hydrate, Saccharin, Antihistamines, Tranquilizers, Antifilarials, Diethyl carbamazine citrate, Antidiabetics and more. - Active Pharmaceutical Ingredients
Actives, Excipients, Intermediates, Raw material, Fine chemicals, and Bulk chemicals. - Antibiotics
Penicillin, Streptomycin, Tetracyclines, Chloramphenicol, and Antifungals. - Blood Products
Blood, Plasma, Serum, Infusion liquids, Sodium chloride, and Glucose. - Proteins
Proteins and Protein buffer solutions - Synthetic Drugs
Sulfa drugs, Antituberculosis drugs, Antileprotic drugs, Analgesics, Anesthetics, and Antimalarials. - Vitamins
Ascorbid acid, Ca-arabonate, Riboflavin, Vitamin-B, Vitamin-C Sodium Pantonate. and more. - Synthetic Hormones
- Syrups
Concentrated aqueous solutions of sucrose. - Drugs of Vegetable Origin
Quinine, Strychnine and Brucine, Emetine, and Digitalis Glycosides, and Herbal extracts. - Vaccines and Sera
- Surgical Sutures
Glue for human tissue. - Acids, Bases and Solvents
Specifications
Technical Details
| Refractive Index Range | Full range, nD = 1.3200…1.5300 (corresponds to hot water…100 b.w.) |
| Accuracy | Refractive index nD ±0.0002 (corresponds typically to ± 0.1% by weight) Repeatability nD ±0.0001 (corresponds typically to ±0.05% by weight) |
| Speed of Response | 1 s undamped, damping time selectable up to 5 min |
| Calibration | With Cargille standard R.I. liquids over full range of nD 1.3200…1.5300 |
| CORE-Optics | No mechanical adjustments (US Patent No. US6067151) |
| Digital Measurement | 3648 pixel CCD element |
| Light Source | Light emitting diode (LED), 589 nm wavelength, sodium D-line |
| Temperature Sensor | Built-in Pt-1000, linearization according to IEC 751 |
| Temperature Compensation | Automatic, digital compensation |
| Instrument Verification | According to ISO 9000 quality system: NIST traceable with standard R.I. liquids and Transmitter’s menu guided procedure and report for printing |
| Ambient Temperature | Sensor: max. 45°C (113°F), min. -20°C (-4°F) Indicating transmitter: max. 50°C (122°F), min. 0°C (32°F) |
| Sensor PR-23-AC | |
| Process Connection | Sanitary 3A-clamp 2.5″ |
| Process Temperature | -20°C…130°C (-4°F…266°F) |
| Surface Roughness, Option | Ra 0.4μm (15μ inch) |
| Process Wetted Part Standard | AISI 316L stainless steel, prism spinel, prism gaskets PTFE (teflon), EPDM |
| Sensor Protection Class | IP67, Nema 4X |
| Sensor Weight | 2.0 kg (4.4 lbs) |
| Laboratory Test Cuvette LTC for Off-line Laboratory Testing | AISI 316 L stainless steel laboratory test cuvette for manual and static sampling. Contains an agitator with PTFE (teflon) stirrer, and connections for sample inlet and outlet, and 1/4″ tube connections for thermostat controlled water |
| Pharma Mini Flow Cell PMFC | For in-line testing of low volume samples in pilot conditions, process connection Sanitary 3A-clamp 1,5″, electropolished wetted parts material with surface roughness of Ra 0.4μm (15μ inch) |
| Indicating Transmitter DTR | |
| Display | 320×240 pixel graphical LCD with LED backlight |
| Keypad | 18 membrane keys |
| Current Output | Two independent current sources, 4-20 mA, max. load 1000 Ohm, galvanic isolation 1500 VDC or AC (peak), hold function during prism wash |
| Ethernet Connection | 10/100 Mbit/s, data acquisition over UDP/IP Protocol with K-Patents data logging software |
| Power | AC input 100-240 VAC/50-60 Hz, optional 24 VDC, 30VA |
| Alarms / Wash Relays | Two built-in signal relays, max. 250 V/3 A |
| Sensor Connectivity | One or two sensors can be connected to the DTR. Sensors independent of each other: own parameter sets and usable in different applications. Two current outputs configurable independently to indicate process concentration or temperature of either sensor. |
| Transmitter Protection Class | Enclosure IP66, Nema 4X |
| Enclosure Material | Standard: Polycarbonate, optional: AISI 304 stainless steel |
| Indicating Transmitter Weight | 4.5 kg (10 lbs) |
| Interconnecting Cable | IEC 61158-2 compliant two-wire cable |
| Interconnecting Cable Length | Standard 10 m (33 ft), max. 200 m (660 ft) |
Note: Specification are subject to change without notice.
