 |
||
Process Refractometer |
||
 |
Overview | |
| K-Patents Sanitary Process Refractometer PR-23-A provides truly accurate means for measuring liquid concentrations and Brix in various process applications. With K-Patents PR-23-A the product quality can be controlled precisely over the whole batch without costly sampling. The measurement accuracy is not influenced by particles, bubbles, sugar crystals, seeds, fibres, colour or temperature changes in the process medium. 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 K-Patents PR-23-A does not require any recalibration or frequent maintenance. |
||
| Technical Specification | ||
| Refractive Index range: Full range, nD = 1.3100...1.5400 (corresponds to hot water...100 Brix) Accuracy: Refractive index nD ±0.0002 (corresponds typically to ± 0.1% by weight) Repeatability and stability correspond to accuracy 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 1.3100...1.5400 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 light Temperature sensor: Built-in Pt-1000, linearization according to IEC 751 Temperature compensation: Automatic, digital compensation Instrument verification: With standard R. I. liquids and K-Patents documented procedure 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-A: PR-23-AC Compact sensor model for small pipe lines PR-23-AP Probe sensor model for large pipe lines and vessels Process connection: PR-23-AC: Sanitary 3A-clamp 2.5"; Varivent in-line access unit clamp DN65 or via elbow flowcell (for line sizes of 2.5" and smaller ) PR-23-AP: Sanitary 3A-clamp 2.5"; Sanitary 3A-clamp 4" or MT4 DN 25/1T APV Tank bottom flange Sanitary design: 3-A Sanitary Standard 46-02 approved and EHEDG (European Hygienic Equipment Design Group) tested Process pressure: Sanitary clamp max. 15 bar (200 psi) at 20°C (70°F)/9 bar (125 psi) at 120°C (250°F) Process temperature: PR-23-AC: -20°C...130°C (-4°F...266°F), PR-23-AP: -20°C...150°C (-4°F...302°F) Process wetted parts, standard: AISI 316L stainless steel, prism spinel, prism gaskets PTFE (teflon) Sensor protection class: IP67, Nema 4X Sensor weight: PR-23-AC: 2.0 kg (4.4 lbs), PR-23-AP: 3.0 kg (6.6 lbs) INDICATING TRANSMITTER DTR: Display: 320x240 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 Power: AC input 100-240 VAC/50-60 Hz, optional 24 VDC 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 temparature of either sensor. Transmitter protection class: Enclosure IP66, Nema 4X Indicating Transmitter weight: 4.5 kg (10 lbs) |
||
