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Inline Process Refractometer PIOX R721 – Chemical Design Variant
The concentration analysis of liquid media is one of the most critical parameters for a proper process and quality control within the Chemical Industry.
By measuring the refractive index, concentration levels of many media consumed or created within the chemical and textile fiber industry, such as solvents, acids, caustics as well as other intermediate and end products, can accurately be monitored and a continuous quality control be assured.
The chemical design variant of the process refractometer PIOX R721 R is offered as a fully stainless steel design variant with all wetted materials made out of grade 316 Ti / 1.4571 steel.
When dealing with highly corrosive media, such as hydrochloric, strong sulfuric or hydroflouric acid, PIOX R is also available as a special carbon reinforced PTFE design variant offering an unrivalled corrosion resistance, long term stability and reliability in such harsh environments.
Both designs are highly durable against any corrosive and toxic media due to their internal FFKM gaskets, the media and scratch resistant sapphire optics as well as the complete separation of the sensorhead from the electronics compartment.
Being ATEX Zone 0/1 certified and available with long and short sensorheads that can be integrated into the process via DIN / ANSI flange or the proprietary FLEXIM flow cell, PIOX R721 is the ideal process analytical technology for a wide array of liquid media within the chemical industry.
Advantages
• Patented transmitted light measurement principle - offering completely drift free, precise and long term stable measurements
• Highly accurate optical process technology making costly laboratory tests obsolete
• No flow velocity needed - as known from conventional technologies
• Independent in regard to gas bubbles and turbidity as well as the media‘s viscosity
• Internal self diagnostic tools for predictive and low maintenance efforts
Advantages
• Oil & Gas
- Underground Gas Storage & Processing
- Upstream / Offshore Solutions
• Chemical Industry
- Base & Intermediate Chemicals
- Polymer Production
• Industry Solutions
- Pulp & Paper
- Semiconductor Industries
Technical Facts
| Measuring quantities | Refractive index and refractive index at standard temperature, fluid temperature, concentration g/l, mass and vol.%, density and density at standard temperature, scale values for example °Brix and °API, additional quantities programmable |
| Measurement range | nD: 1.3 ...1.7, °Brix: 0 ...100 |
| Measurement accuracy | nD: 0.0002 (corresponds to: 0.1 °Brix, 0.1 w%) |
| Repeatability | nD: 0.00002 (corresponds to: 0.01 °Brix, 0.01 w%) |
| Operating temp. (media) | - 20 °C ... (+ 130 °C) + 150 °C |
| Fluid pressure | PN 10, PN 16, on request PN 40 (depending on process connection) |
| Degree of protection | Sensor R500: IP67, ATEX (IECEx) zone 0,1,2 Transmitter R721: aluminium or stainless steel enclosure, IP66, ATEX (IECEx) zone 2 |
| Wetted parts, materials | Stainless steel 316Ti (1.4571) |
| Housing material | Stainless steel 304 (1.4301) |
| Process connection | DIN/ANSI flange, sight glass fitting, proprietary FLEXIM flow cell |
| Additional Notes | PTFE Chemical Design variant: Wetted parts, materials: PTFE carbon-fiber reinforced bulk material |
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