fafnir CONDURIX Series Manuals

FAFNIR GmbH • Schnackenburgallee 149 c • 22525 Hamburg, Germany • Tel.: +49 / 40 / 39 82 07–0 • Fax: +49 / 40 / 390 63 39 Technical Documentation CONDURIX The potentiometric level sensor Edition: 2016-08 Version: 9 Art. no.: 207134 I Table of Contents Table of Contents II Table of contents 1 Range of application .............................................................................. 1 2 Safety instructions ................................................................................. 2 3 Design and function ............................................................................... 3 4 Installation .............................................................................................. 5 4.1 CONDURIX Mono (single rod) ............................................................................. 6 4.2 CONDURIX DU (two rods) ................................................................................... 6 4.3 CONDURIX MA (jacketed pipe) ........................................................................... 6 5 Electrical connection .............................................................................. 7 6 Parametrisation ...................................................................................... 9 6.1 Measuring span at the level sensor ..................................................................... 9 6.2 Current consumption in failure mode ............................................................... 10 7 Maintenance ......................................................................................... 11 7.1 Overhaul .......................................................................................................... 11 7.2 Return shipment ............................................................................................... 11 8 Technical Data ...................................................................................... 12 9 List of figures ........................................................................................ 13 10 Annex .................................................................................................... 14 10.1 EC Declaration of Conformity ........................................................................... 14 10.2 EC-Type Examination Certificate ....................................................................... 15 10.3 Safety instructions ............................................................................................ 18 © Copyright: Reproduction and translation are permitted only with the written consent of the FAFNIR GmbH. FAFNIR GmbH reserves the right to make changes to products without prior notice. Page 1/20 Range of application 1 Range of application The purpose of the CONDURIX level sensor is to provide continuous level gauging of elec- trically conductive liquids (> 1 μS/cm). During the measurement no insulating layer must be formed on the probe tube. The level sensor is available in lengths of 200 to 6,000 mm. With the “single-rod probe” model (CONDURIX Mono), the inside of the container must have a conductive surface (metal containers / downpipes). The “two-rod probe” model (CONDURIX DU) or “jacketed probe” model (CONDURIX MA) are both compatible with non-conductive containers. The standard sensors work by outputting the measured fill level as an analogue value in the range 4 to 20 mA. With the HART option, the configuration and retrieval of measured values by the digital HART protocol are supported, see • Technical Documentation CONDURIX with HART protocol, art. no. 350044 In conjunction with the standard level sensors, wetted parts are in stainless steel 1.4571 (316Ti), insulators are in PEEK (alternatively in PTFE). On request, the probe tubes are also available in Hastelloy, tantalum, titanium or stainless steel 1.4404 (316L).