Conductivity Sensors ConduMax W CLS 19

Transcription

1 Technical Information TI 110C/07/en/ Conductivity Sensors ConduMax W CLS 19 Two-electrode sensors with cell constants k = 0.01 cm 1 or k = 0.1 cm 1 Application Measurement in pure and ultrapure water: Monitoring ion exchangers Reverse osmosis The measuring range of the sensors depends on the cell constant k: k = 0.01 cm 1 : µs/cm k = 0.1 cm 1 : µs/cm Sensors with a Pt 100 temperature sensor are used together with the conductivity measuring instruments Liquisys M CLM 22/25 equipped with automatic temperature compensation. For measurement of specific resistance, MΩ. cm measuring ranges are available in the menues of these transmitters. Your benefits Installation in pipes or flow chambers Pt 100 temperature sensor for temperature compensation Compact design Very good price Quality made by Endress+Hauser ISO 9001

2 Function and system design Measuring principle Conductive conductivity measurement AC U I The conductivity of liquids is measured with a measuring system that has two coaxially arranged electrodes like a capacitor. The electric resistance or its reciprocal value, the conductance G, is measured according to Ohm s law. The specific conductivity κ is determined using the cell constant k that is independent from the sensor s geometry. œ `ÕV̈ÛiÊVœ `ÕV̈ۈÌÞÊ i>ãõài i Ì *œüiàêãõ««þ ÕÀÀi ÌÊ iìià 1 6œ Ì>}iÊ iìià C07-CLXcxxxx xx-001.eps Important properties ConduMax W CLS 19 Electrodes ConduMax W CLS 19 has coaxial measuring electrodes made of polished, stainless steel (AISI 16Ti). Temperature sensor In addition, a Pt 100 temperature sensor is installed to measure the medium temperature. Easy connection The sensors are connected via a 4-pole DIN-plug that can be secured with a screw. For introduction of the measuring cable, the plug is equipped with a Pg 9 cable gland. Installation The sensor can be installed directly via the NPT ½" process connection. Mounting the sensor in cross or T-pieces with DN 20 requires a PVC-threaded coupling that is available as accessory. For easy installation in cross or T-pieces with DN 2, 40 or 50, adapter couplings (made of PVC for cementing) and a 1½" clamp coupling (made of PVDF) are available as accessories. Durability The sensor is pressure-proof up to 6 bar (at 20 C) and can be applied with temperatures of up to 60 C (at 1 bar). 2 Endress+Hauser

3 } CAL REL REL 1 REL 2 REL 1 REL 2 ALARM ConduMax W CLS 19 Measuring system A complete measuring system comprises: a CLS 19 conductivity sensor a transmitter, e.g. Liquisys M CLM 25 a CYK 71 measuring cable ENDRESS+HAUSER LIQUISYS M 1 2 E i>ãõàˆ }ÊÃÞÃÌi ÊiÝ> «i œ `Õ>ÝÊ7Ê-Ê Ó ˆµÕˆÃÞÃÊÊÊÓxÎÊÌÀ> à ˆÌÌiÀ Î -«ivˆ> Ê i>ãõàˆ }ÊV>L i C07-CLS19xxx xx-001.eps Input Measured values Cell constant k Measuring ranges Conductivity Temperature Depending on ordered version: k = 0.01 cm 1 k = 0.1 cm 1 Conductivity (referenced to water at 25 C) k = 0.01 cm 1 : 0.04 µs/cm µs/cm k = 0.1 cm 1 : 0.1 µs/cm µs/cm Temperature C Temperature sensor Pt 100 Cable specification The ConduMax W is connected to the measuring transmitter using the special measuring cable CYK 71. Cable Sensor Pin Coax BK Coax inner ) 2 screen (outer electrode) conductivity (inner electrode) Outer screen (PE measuring device) GN WH YE BN n.c. } 1 Pt 100 C07-CYK71xxx en-002.eps -«ivˆ> Ê i>ãõàˆ }ÊV>L iê9êç Endress+Hauser

4 Installation Installation instructions The sensors are mounted directly via the NPT ½" process connection. Optionally, the sensors can be installed in cross or T-pieces. Ó Î *6 Ì Ài>`i`ÊVœÕ«ˆ }Ê ÃiiÊVViÃÃœÀˆià `>«ÌiÀÊVœÕ«ˆ }ÊvœÀÊVi i ̈ }ÊvœÀÊ ÊÎÓ]Ê{äÊœÀÊ xäê ÃiiÊVViÃÃœÀˆiÃÊÊÎÓ]Ê{äÊœÀÊxä ÀœÃÃÊœÀÊ/ «ˆiViÊ ÊÎÓ]Ê{äÊœÀÊxä ÃÌ> >̈œ ʈ ÊVÀœÃÃÊœÀÊ/ «ˆiVi C07-CLS15xxx xx-001.eps When mounting the sensor, make sure that the measuring surfaces are completely wetted by the medium. When working in ultrapure water, ingress of air must be avoided since dissolved air, particularly CO 2, may increase conductivity by up to µs/cm. Environment Ingress protection IP 65 Process Process temperature C Process pressure 6 bar (at 20 C) Pressure/temperature load curve [bar] *ÀiÃÃÕÀiÉÌi «ià>ìõàiê œ>`êvõàûiêœvê-ê [ C] C07-CLS19xxx xx-001.eps 4 Endress+Hauser

5 Mechanical construction Design, dimensions 2 1 AF NPT ½" } 5 Ø 16 C07-CLS19xxx xx-001.eps C07-CLS19xxx en-001.eps -Ê Ê`iÈ} -Ê Ê`ˆ i Èœ à œ iv순 Ê i>` Ó i>ãõàˆ }ÊV>L iêœõì iì Î / Ài>`i`Êà >vìê *- { ivìàœ`iãê Vœ>݈> ÞÊ>ÀÀ> }i` Ê x i>ãõàˆ }ÊÃÕÀv>Vi Weight approx. 0.1 kg Materials Electrodes Sensor shaft stainless steel (AISI 16Ti) PES (Polyethersulfone) Process connection Cable connection NPT ½" thread Pg 9 cable gland Ordering information Product structure ConduMax W CLS 19 Measuring range and cell constant A Measuring range: µs/cm (k = 0.01) B Measuring range: µs/cm (k = 0.1) Process connection and materials 1A Thread NPT ½", sensor shaft PES Measuring cable connection 1 4-pole connector with Pg 9 Temperature sensor A Integrated Pt 100 temperature sensor D Without temperature sensor CLS 19- complete order code Endress+Hauser 5

6 Accessories Installation PVC-threaded coupling For cementing in standard PVC cross or T-pieces with DN 20, with G ½ internal thread, selfsealing, ½ NPT sensor thread; order no PVC equalising sleeves AM For adaptation of the PVC-threaded coupling to larger nominal diameters, AM 2 for installation into cross or T-pieces DN 2, order no AM 40 for installation into cross or T-pieces DN 40, order no AM 50 for installation into cross or T-pieces DN 50, order no PVDF-threaded coupling With G ½ internal thread and G 1 external thread, pressure-proof up to 12 bar (20 C), max. temperature 120 C, incl. O-ring, internal thread, self-sealing with NPT ½" sensor thread; order no Adapter clamp 1½" made of PVDF for mounting the conductivity sensor in a clamp adaption; order no Measuring cables Special measuring cable / extension cable CYK 71 for two-electrode conductivity sensors with built-in temperature sensor, 1 low-noise coaxial line, 4 auxiliary cores at 0,75 mm 2 each with a common screen, outer diameter 7 mm / 0,25" Sold by the metre, minimum length 5 m Order no Length 5 m Order no Length 10 m Order no Length 50 m Order no Length 100 m Order no Junction box VBM for cable extension, with 10 terminals, IP 65 / NEMA 4X Cable entry Pg 1,5 Order no Cable entry NPT ½" Order no Calibration solutions Calibration set Calibration solutions Precision solutions referred to SRM (Standard Reference Material) of NIST for qualified calibration of conductivity measuring systems according to ISO, accuracy ± 0,5 %, with temperature table, CLY 11-A 74 µs/cm (reference temperature 25 C), 500 ml; order no CLY 11-B 149,6 µs/cm (reference temperature 25 C), 500 ml; order no Calibration set ConCal Conductivity calibration set for ultrapure water applications, complete, factory-calibrated measuring set with certificate, traceable to SRM of NIST and DKD, for comparative measurement in ultrapure water applications up to 10 µs/cm 20 V AC, order no V AC, order no Recalibration ConCal Factory recalibration and new issue of calibration certificate, traceable to SRM of NIST and DKD, factory calibration procedure according to ASTM D-591-9; order no Endress+Hauser

7 Related products Conductive conductivity sensor ConduMax W CLS 15 For measurement in pure and ultrapure water, for ordering information, see the CLS 15 Technical Information (TI 109C/07/en) Documentation Transmitters Liquisys M CLM 22/25, Technical Information TI 19C/07/en; order no Calibration solutions Precision calibration solution CLY 11, Technical Information TI 162C/07/en; order no ConCal ConCal, Technical Information TI 16C/07/en; order no Related products ConduMax W CLS 15, Technical Information TI 109C/07/en; order no Endress+Hauser 7

8 Deutschland Österreich Schweiz Vertrieb: Service: Endress+Hauser Beratung Information Auftrag Bestellung Help-Desk Feldservice Ersatzteile/Reparatur Kalibrierung Telefon: Telefon: Telefax: EHVERTRIEB EHSERVICE Messtechnik GmbH+Co. KG Colmarer Straße 6 D Weil am Rhein EHFAXEN Endress+Hauser Messtechnik Ges.m.b.H. Lehnergasse 4 A-120 Wien Tel. (01) Fax (01) info@at.endress.com Endress+Hauser Metso AG Sternenhofstraße 21 CH-415 Reinach/BL1 Tel. (0 61) Fax (0 61) info@ch.endress.com Internet: Internet: info@de.endress.com service@de.endress.com Internet: Technische Büros in: Hamburg. Hannover. Ratingen. Frankfurt. Stuttgart. München. Teltow TI 110C/07/en/ Printed in Germany / FM+SGML 6.0 / DT