Product Focus
SITRANS Probe LU
2 Wire Ultrasonic transmitter for Level and Flow Measurement.
2-wire, loop powered ultrasonic transmitter for level, volume, and flow. Highly intelligent with single push button obstruction avoidance and HART & Profibus options, ideal for devolved measurement into existing or new control solutions. With the highest of Ingress protection the LU Probe is a low cost solution suitable for a wide variety of applications. ATEX and 6m and 12m range options.
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Product Identification
Our range of photometric analysis systems includes the RAMS (Reflection/Absorption Multi-Switch) which provides “in-pipe” product identification and / or product interface detection.
RAMS simultaneously measures reflection and absorption of liquid in product pipes at 4 different wavelengths, blue, green, red & near-infrared, making it possible to analyse the colour and turbidity of a given product or to distinguish various products from one another. Depending on the application, one of 8 parameters or a suitable combination of them can be monitored and evaluated. The output of the relevant parameter takes the form of a current signal; limit formation can be handled externally in the DCS.
For product identification, a fingerprint of the product in question is first taken and stored in the RAMS. This is done by measuring one or more parameters (e. g. turbidity/IR absorption, blue and green transmission) and applying certain tolerances to these figures. As soon as a product exhibiting these figures (within the tolerances) is in the pipe, it will be unmistakably identified and signalled. This is possible for up to 8 products by employing either digital signals or software. For more than 8 products, evaluation can take place via DCS/PLC.
Should optical measurement prove insufficient for the differentiation of certain products, an external variable e.g. conductivity can also be read in and included in the evaluation.
| Basic Specification: | |
| Measuring principle | Transmission / reflection at 4 wavelengths (blue, green, red, NIR) |
| Materials | Stainless steel 1.4404, borosilicate glass / sapphire, EPDM seals |
| Cleaning | CIP/SIP-compatible (max 125°C) |
| Pressure | 10 bar |
| Degree of protection | IP 67 |
| Power supply | 24VDC ± 5 % |
| Outputs, Analogue / Serial | 4 to 20mA into 500ohms / RS 232 |