division of BIOLAB
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division of BIOLAB |
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Bellingham + Stanley Ltd- Refractometers and Polarimeters
PRH Process Refractometers- Flexible Modular Design
Every process line has a particular function and performance requirement. Close co-operation with the customer is key to ensuring the refractometer system is installed successfully. A basic design is adapted and configured to take account of the technical needs and budgetary limitations of the customer. The basic process refractometer system comprises four elements:
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Refractometer: The system sensor is the PRH Refractometer - a compact, fully sealed robust unit, constructed in 316 stainless steel, which can be attached to a variety of manifold types to give an assembly that is compatible with the existing process line and meets industry standards for safety and hygiene. |
| Manifold: A manifold is needed to attach the PRH Refractometer to the process line, either directly or within a by-pass loop. The type of manifold will vary according to the product being measured, pipe dimensions and line coupling and quality and hygiene standards demanded by the process, for example, crevice-free welds, polishing etc. In some cases it may be possible to mount a refractometer onto a product tank using a special flange. | |
| Junction Box: Every refractometer in a system has an associated junction box, which provides a connection point for the following services: power supply, RS485 network, analogue output and alarm output. Two types cover the requirements of any system: an AC mains powered junction box and a DC powered version. A refractometer is directly wired to a junction box, which must be sited within 1 metre of the instrument. No external connectors are used. | |
| Software: A Data Capture Software Package can be used to log and display results. Data are stored in files that correspond to pre-determined intervals (seconds to hours), thus providing flexibility to breakdown product runs into manageable periods for analysis. Recorded parameters are: Refractometer reading (e.g. product concentration), product and instrument temperatures and prism quality. |
*Within each of these elements there are optional features and configurations that need to be defined in order to establish a complete product specification.
