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PR-23-AC Sanitary Compact Refractometer
Brand: K-Patents Process InstrumentsK-Patents Sanitary Compact Refractometer PR-23-AC provides accurate means for measuring Brix and liquid concentrations in hygienic installations and 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, a Sanitary clamp or a Varivent® connection. This way the best flow conditions and self-cleaning 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, bubbles or color changes do not affect the measurement or the accuracy.
Each sensor is provided with a calibration certificate comparing a set of standard liquids to the actual sensor output. The calibration and accuracy can be verified on-site with the certified Refractive Index liquids and K-Patents documented procedure.
Features- Universal calibration of each sensor: All sensors are freely interchangeable.
- Full measurement range Refractive Index (nD) 1.3200 - 1.5300, which corresponds to 0-100 Brix.
- Meets 3A Sanitary Standard and tested for CIP cleanability according to EHEDG.
- Withstands CIP cleaning.
- Dual connectivity: one transmitter can operate two sensors. A second sensor can be easily integrated later.
- Completely digital system: particles and bubbles do not affect operation or accuracy.
- Patented CORE-optics: no drift, no re-calibration, no mechanical adjustments.
- Ethernet connection and remote panel for data-logging and remote operation.
- 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.
- Easy on-site instrument verification within users’ own quality assurance system with standard Refractive Index liquids.
Specifications
Accuracy
- R.I. ± 0.0002 (Corresponds Typically to ± 0.1 % by Weight)
Alarms / Wash Relays
- Two Built-In Signal Relays, Max.
Ambient Temperature Range
- Indicating Transmitter: 0° to 50° C (32° to 122° F)
- Sensor: -20° to 45° C (-4° to 113° F)
Cable Fittings to Indicating Transmitter
- European Cable Glands M20 x 1.5 or US Conduit Hubs
Calibration
- With Cargille Standard R.I. Liquids over Full Range of ND 1.3200 to 1.5300
Current Output
- Indicating Transmitter DTR: 4-20 mA - Max.
- Indicating Transmitter DTR: Galvanic Isolation 1,500 Vdc or AC (Peak), Hold Function During Prism Wash
Display
- Indicating Transmitter DTR: 320 x 240 Pixel Graphical LCD with LED Backlight
Ethernet Connection
- 10/100 Mbit/second, Data Acquisition over UDP/IP Protocol with Data Logging Software
Instrument Verification
- With NIST Traceable Cargille Standard R.I. Liquids, A Transmitter Guided Procedure over Ethernet Including A Printable Verification Report
Interconnecting Cable
- IEC 61158-2 Compliant 2-Wire Cable
Interconnecting Cable Length
- 33 feet (10 metres) Standard
- Maximum
Keypad
- Indicating Transmitter DTR: 18 Membrane Keys
Patented Core-Optics
- Built-In Pt-1000 Temperature Sensor (Linearization According to IEC 751)
- Digital Measurement with 3648 Pixel CCD Element
- No Mechanical Adjustments
- Sodium D-Line Light Emitting Diode (LED)
Power
- Indicating Transmitter DTR: 24 Vdc
- Indicating Transmitter DTR: AC Input 100-240 Vac, 50/60 Hz
Process Connection
- Sanitary 3A-Clamp 2.5”
- Varivent In-Line Access Unit Clamp DN 65 or or Via Elbow Flowcell (For Lines Sizes 2.5”and Smaller)
Process Pressure
- Maximum
- psi: 125 (kPa: 900, bar: 9) at 120° C (250° F)
Process Temperature
- -20° to 130° C (-4° to 266° F)
Process Wetted Parts (Standard)
- AISI 316L Stainless Steel
- Prism Gaskets Modified PTFE (Teflon)
- Prism Spinel
Refractive Index Range
- Full Range, ND=1.3200 to 1.5300 (Corresponds to Hot Water to 100 Brix)
Repeatability
- nD = ± 0.0001 (Corresponds Typically to ± 0.05 % by Weight)
Sanitary Design
- 3-A Sanitary Standard 46-03 & 74-06 Approved & EHEDG (European Hygienic Equipment Design Group) Tested
Sensor Connectivity
- One or Two Sensors can be connected to One DTR
Sensor Housing
- Stainless Steel
Sensor Protection Class
- IP67
- NEMA 4X
Speed of Response
- 1 second Undamped, Damping Time Selectable up to 5 minutes
Temperature Compensation
- Automatic, Digital Compensation
Transmitter Protection Class
- Enclosure IP66
- NEMA 4X (Indoor Use)