User Manual English SE 655 N-GEFFT0AM Digital Toroidal Conductivity Sensor Memosens Protocol Latest Product Information: www.knick.de
2 Safety Instructions WARNING Failure to observe this warning may result in serious injury. The safety alert symbol on the nameplate means: Read these instructions for use, observe the Specifications, and follow the Safety Instructions. Safety Instructions Make sure that the sensor is without visible mechanical damage. Use the sensor for the intended purpose only. Hazards due to pressure, temperature, aggressive media or other influences are possible, depending on the location of use. Therefore, the installation, operation, and servicing of the sensor shall only be carried out by suitably trained personnel authorized by the operating company. Manipulations of the equipment other than described in the user manual are not permitted. The sensors have been developed in compliance with the applicable European directives and standards. Be sure to follow the instructions given in this user manual for connecting and operating the SE 655 sensors. Observe the specified ranges for ambient temperature and process temperature to ensure safe use of the sensors. Take care to maintain the IP 68 protection when installing the sensor. (Use original gaskets, insert the cables in a professional manner.) Make sure that the gaskets are securely in place. Otherwise, the assembly is not tight. Do not dismantle the sensor as long as the process medium is under pressure. Intended Use The SE 655 toroidal conductivity sensors with Memosens protocol are particularly suited for applications in the chemical industry and for process engineering. The SE 655 sensor is equipped with Memosens technology. This allows an integrated sensor diagnostics as well as the saving of calibration data, operating time, sensor designation and serial number in the sensor. The serial number is also printed in the quality certificate and on the packaging label. Using the Memosens protocol for data transmission allows the above mentioned sensor data to be transmitted to the measuring device and to be saved and processed. Thanks to the large measuring range over six decades and the high chemical resistance of the process-wetted parts made of PEEK, almost every conceivable application is possible, such as concentration determination of acids, bases and salt solutions, monitoring of product quality or phase separation of product mixtures.
Table of Contents 3 Safety Instructions...2 Intended Use...2 Specifications...4 Chemical Resistance...5 Temperature and Pressure Resistance...6 Electrical Connection...7 Identifying the Sensor...7 Assembly...8 Dimension Drawings...11 Accessories...13
4 Specifications General Cell factor (installation factor 1.98/cm for adaption to installation conditions, see page 10) Measuring range 0... 2000 ms/cm Resolution 0.002 ms/cm Measurement error (-20... +100 C) ± (0.005 ms/cm + 0.5 % meas. value) Measurement error ± (0.010 ms/cm + 0.5 % meas. value) (> 100 C) SE 655 material PEEK Process temperature Temperature response time t 90 (DIN 746-1) -20... +110 C G 3/4 (SE 655N-GEFFT0AM) Approx. 7 min Ambient temperature -20... +70 C Storage temperature -20... +80 C Process pressure 0... 20 bar Temperature detector Pt1000 (Class A acc. to IEC 60751) Installation Cable Length Connection Ingress protection (EN 60529) Weight G 3/4 (SE 655N-GEFFT0AM) NPT 1 adapter Steel with ZU1046 NPT 1 adapter PEEK with ZU1052 ANSI 2 flange PVDF with ZU1035 DN 50 flange Steel with ZU0343 DN 50 flange PVDF with ZU0344 3 m (extendable up to 100 m) Ferrules IP 68 (sensor mounted, with original gasket) Approx. 1 kg
Specifications 5 Chemical Resistance - Depending on the Type, Concentration, and Temperature of the Process Medium Sensor Gaskets Medium Concentration Material: PEEK Material: FKM (other materials on request) Sodium hydroxide 0... 50 % 20...100 C (68... 212 F) Not suitable solution NaOH Nitric acid 0... 10 % 20... 100 C (68... 212 F) 0... 120 C (32... 248 F) HNO3 0... 40 % 20 C (68 F) 0... 120 C (32... 248 F) Phosphoric acid 0... 80 % 20... 100 C (68... 212 F) 0... 120 C (32... 248 F) H3PO4 Sulfuric acid 0... 2.5 % 20... 80 C (68... 176 F) 0... 120 C (32... 248 F) H2SO4 0... 30 % 20 C (68 F) 0... 120 C (32... 248 F) Hydrochloric acid 0... 5 % 20... 100 C (68... 212 F) 0... 120 C (32... 248 F) HCl 0... 10 % 20... 100 C (68... 212 F) 0... 120 C (32... 248 F)
6 Specifications Temperature and Pressure Resistance SE 655 PEEK P/T Diagram (SE 655N-GEFFT0AM) Pressure [bar] 20 16 0 20 60 80 110 Temperature [ C] Fig. 1 Pressure/temperature resistance P/T Diagram (Assembled Version) Pressure [bar] 16 10 DN 50, stainless steel (ZU 0343) Loose flange DN50, PVDF (ZU 0344), ANSI 2, PVDF (ZU1035) Thread adapter NPT 1, steel (ZU1046) NPT 1, steel (ZU1052) 1.5 0 20 60 80 110 Temperature [ C] Fig. 2 Pressure/temperature curves depending on the process installation
Specifications 7 Electrical Connection Connect the sensor cable to your measuring device. Refer to the user manual of your measuring device for information on the electrical connection. For further information, see www.knick.de. S Fig. 3 Wire assignment of Memosens cable Brown Green Yellow White Gray Power supply + RS485 (A) RS485 (B) Power supply (GND) Shield The shielding wire is included in the package. Note: First, pass the sensor cable through the cable gland. Then, secure the clamp S on the bare shielding braid of the cable. Identifying the Sensor SE655N-GEFFT0AM Electrodeless Conductivity Sensor 14163 Berlin Made in Germany Serial No.: 0123456789012 Temp 0to110 C P rel 0to20bar The orientation symbol shows the position of the sensor bore. Fig. 4 Model designation / nameplate of SE655N-GEFFT0AM sensor
8 Assembly Assembly, with PTFE washer (for flange protection) Max. torque 20 Nm, 36 mm wrench Nut (included with sensor) Replacement: ZU 0340N Sensor: SE 655N-GEFFT0AM O-ring included with sensor) Replacement: ZU 0340N PTFE washer DN 50 ZU 0342N (optional) Stainless steel flange ZU 0343 Fig. 6 Assembly with stainless steel DN 50 flange, with PTFE washer Assembly with NPT 1 adapter Max. torque 20 Nm, 41 mm wrench NPT 1 adapter ZU1046 (1.4571) ZU1052 (PEEK) O-ring (included with sensor) Sensor Fig. 7 Assembly with NPT 1 adapter
Assembly 9 Assembly with stainless steel DN 50 flange, without PTFE washer (flange wetted by process medium) Max. torque 20 Nm, 36 mm wrench Nut Flange kit, ZU 0343 (stainless steel) DN 50 PN 16 Gasket (O-ring) Sensor Flange kit, ZU 0344 DN 50 PN 10 PVDF Loose flange (PP-GF) Nut Flange (PVDF) Flange kit, ZU 1035 ANSI 2", 150 lbs PVDF Loose flange (PP-GF) Nut Flange (PVDF) Fig. 8 Assembly with DN 50, ANSI 2 loose flange
10 Assembly Installation Conditions Min. distance 15 mm (no change of cell factor) With a distance of less than 15 mm to metallic tank or pipe walls, the cell factor will be reduced. With insulating walls, the cell factor will increase. 15 mm Fig. 9 Minimum extent of the free field without change of the cell factor Make sure that the sensor is correctly positioned. Minimum water level in the pipe (sensor head completely wetted) a max 100 Fig. 10 Typical installation in a pipe Installation factor 1,40 1,20 Insulating pipe wall 1,00 Conductive pipe wall 0,80 0 10 5 10 30 15 20 50 25 Fig. 11 Influence of wall distance to installation factor Distance a to pipe wall [mm]
151 [5.945] 98 [3.858] 163 [6.417] 35 [1.378] Dimension Drawings 11 Stainless steel Stainless steel Stainless steel SW36 [1.417A/F] NPT 1" G 3/4 SW41 [1.614A/F] 39 [1.535] 24 [0.945] 47 [1.85] 15,5 [0.61] 27,5 [1.08] across flats A/F Fig. 12 Dimensions of the sensor in mm [inches]
12 Dimension Drawings Flange kit DN 50 PN 16, 316L, ZU 0343 Flange (stainless steel) NPT 1" 41 mm A/F 4 x 18 18 NPT 1 stainless steel ZU1046 NPT 1 PEEK ZU1052 27 125 165 Flange kit DN 50 PN 10, PVDF, ZU 0344 Loose flange Flange (PVDF) 4 x 18 78 125 165 18 27 75 102 11 20 Flange kit ANSI 2", 150 lbs ZU 1035 Loose flange (PP-GF) Flange 8 x 19 78 121 165 18 27 75 102 11 20 Fig.13 Dimensions of the flanges and adapters in mm
Accessories 13 Order No. NPT 1 adapter Material: stainless steel ZU 1046 NPT 1 adapter Material: PEEK ZU 1052 Flange, DN 50 PN 16 Material: 316 L ZU 0343 When measuring in aggressive media, you require sealing set C. Flange, DN 50 PN 10 Material: PVDF ZU 0344 Flange, ANSI 2", Material: PVDF ZU 1035 150 lbs Sealing set A Nut + FKM O-ring (3 x) ZU 0340N spare part for SE655N-GEFFT0AM Sealing set C PTFE washer DN 50 ZU 0342N (protects ZU 0343 flange against aggressive media) O-rings Material: FKM O-Ring 30x2,5 FKM Material: EPDM-FDA O-Ring 30x2,5 EPDM-FDA Material: FFKM O-Ring 30x2,5 FFKM Conductivity standard KCl 0.1 mol/l 250 ml 12.88 ms/cm + 1.5% CS-C12880K/500 For more accessories enabling the installation in immersion fittings or flow-through fittings, refer to our website: www.knick.de.
Knick Elektronische Messgeräte GmbH & Co. KG Beuckestr. 22 14163 Berlin Germany Phone: +49 30 80191-0 Fax: +49 30 80191-200 info@knick.de www.knick-international.com Copyright 2018 Subject to change Version: 1.2 This document was last updated on April 20, 2018 The latest documents are available for download on our website under the corresponding product description. 093701 20180420 TA-SE655N-MSProt-KNE01