SGM LEKTRA LEVEL Measurement Control SGM LEKTRA Capacitive Ultrasonic Radiated microwave Guided Microwave Hydrostatic head Vibration Resistive

Transcription

1 level measurement

2 LEVEL SGM LEKTRA produces level measurement instruments for industrial applications and for environmental monitoring. These instruments are divided into two groups: Measurement - Numeric and percentage of detected level. Control - Detecting the presence or absence of product in a predetermined point (on-off level). For the measurement and control of level, there are several physical principles and then, depending on the applications, it is necessary to evaluate the most suitable choice. SGM LEKTRA assist customers and sales network, even with training courses, in the appropiate technical solutions selection. Capacitive: - Applications for level measurement and control - System in contact with the material to be measured - Suitable for liquids, bulk solids and powders - Up to 150 C (product) and for pressures up to 25 bar - Rod or rope measuring electrode Ultrasonic: - Applications for level measurement and control - Non-contact measurement technology - Measuring range up to 12 m - Suitable for liquids and bulk solids - Indipendent of the electrical characteristics of the material to be measured - Up to 80 C (product) and pressure up to 1 bar relative Radiated microwave: - Applications for level measurement - Suitable for liquids, bulk solids and powders - Non-contact measurement technology - Measuring range up to 70 m - Suitable for the measurement of products with Er> Up to 250 C (product) and for pressure up to 40 bar relative Guided Microwave: - Applications for level measurement - Suitable for liquids, bulk solids and powders - System in contact with the material to be measured - Measuring electrode rod, wire rope or coaxial - Measuring range up to 30 m (rope) - 3 m (rod) - Suitable for the measurement of products with Er> Up to 150 C (product) and pressures up to 40 bar relative Hydrostatic head: - Applications for level measurement - Suitable for liquids - System in contact, immersed in the fl uid to be measured - Available in three versions: wired rope, fl exible and rigid pipe - Measuring range max 200 m H 2 O Vibration: - Applications for on-off control - System in contact with the material to be measured - Available in three versions: compact, rigid extension, rope extension - Suitable for powders, granulates and liquids - Up to 140 C (product) and for pressures up to 25 bar Resistive: - Applications for on-off control - System in contact with the material to be measured - Mono and multi-electrode (max 5 rope/rode) - Suitable only for electrically conductive liquids - Suitable for level alarms and pumps control - Up to 150 C and for pressures up to 25 bar 2 - misura level measurement di livello

3 On/Off Capacitive control is an established and extensively used level control technique. The instrument is composed of an electrode, suitable for the application, and of an electronic insert mounted inside a protective housing. The available inserts are adapted to a wide applications variety of, on-off transmitters, alarms, pumps control, even with Atex certifi cation for applications in areas with danger of explosion. The process connections are of various types, threaded, fl anged or sanitary type. The CLS9 and CLS5 types are suitable for installation on plastic or fi berglass tanks. CLS2 CLS4 CLS5 Applications liquids / solids liquids / solids solids / granules Material in contact SS 316 / PVC / PTFE / AVP SS 316 / PVC / PTFE PEHD / PP Max temperature 150 C 150 C 70 C Max pressure 25 bar 25 bar 6 bar Max length probe rod 3 m - rope 10 m 3 m 6 m Atex yes yes no Process connection G ¾ / G 1 / G 1½ 1 NPT / G ½ 1½ / DIN DN clamp 1 2 / DN fl ange ANSI 2 4 fl ange G 1½ Connection material carbon steel / SS 316 carbon steel / SS 316 / PVC PTFE / SS 304 L galvanized steel Power supply 24 Vdc / Vac 24 Vdc / Vac Vdc / Vac Protection IP66 67 IP66 67 IP67 CLS7 CLS8 CLS9 Applications solids / granules liquids liquids Material in contact carbon steel / SS 316 / PE carbon steel / SS 316 / PVC / PTFE PVC / PP Max temperature 70 C 150 C 60/80 C Max pressure 6 bar 6 bar 6 bar Max length probe 30 m 30 m 150 mm Atex yes yes yes Process connection G 1½ / DN fl ange ANSI 2 4 fl ange G 1 1½ 1 NPT / DIN DN clamp 1 2 / DN fl ange G 1 / G 1½ Connection material carbon steel / SS 304 / SS 316 carbon steel / SS 316 / PVC PTFE / SS 304 L PVC / PP Power supply 24 Vdc / Vac 24 Vdc / Vac 24 Vdc / Vac Protection IP66 67 IP66 67 IP

4 LEVEL CLS2 / CLS4 CLS2 - CLS4 Level control for contact Suitable for liquids, powders and granules Protection IP66 67 ATEX certified versions PTFE or PVC insulation CLS2 Standard capacitive units with rod or rope extension, probe for general industrial applications, suitable for ON- OFF level control of granules, powders and liquids, IP66 67 protection. CLS4 Capacitive units with rod probe for general-purpose, suitable for ON-OFF level control in conductive or non-conductive liquids, IP66 67 protection, installation on the top or side of metal vessels. Available with PTFE or PVC electrode protection. 4 - misura level measurement di livello

5 CLS5 / CLS7 CLS5 Level control for contact, mounting from above Sensor element in PP Suitable for control of granules and powders IP67 protection Cable in HDPE Max length 6 m CLS7 Level control for contact, mounting from above Wire rope carbon steel / PE Suitable for control of granules and powders IP66 67 protection Max length 30 m ATEX certified versions CLS5 CLS5 is a capacitive level control instrument that uses an advanced technology. CLS5 is equipped with a sensor in PP heat-sealed. This allows its use in a wide applications range for the level control in granules or powders such as cement, fl our, feed for animals, etc... CLS5 is easily confi gurable via the VL601 module. Maximum tensile load 3000 N. CLS7 Capacitive instrument with wired rope probe for heavy duty, suitable for level controls in granules and dust, IP66 67 protection, installation on the top of metal vessels

6 LEVEL CLS8 / CLS9 CLS8 Level control for contact, mounting from above Threaded, flanged and sanitary connection Suitable for control of liquids IP66 67 protection PTFE or PVC insulation ATEX certified versions CLS9 Level control for contact for plastic or fiberglass tanks IP66 67 protection Side mounting, threaded or flanged types PP / PVC Wetted Parts Probe length 150 mm ATEX certified versions CLS8 Capacitive units with wired rope probe suitable for the level control in liquids. IP65 67 protection, installation on the top of metal vessels. CLS9 Capacitive units suitable for applications in plastic or fi berglass tanks for the onoff control of acids or other chemically aggressive products. Installation on the side of the tank. 6 - misura level measurement di livello

7 This principle is particularly suitable for the use on powders and granules when electrical capacitance changes or electrostatic charges make other measurement principles ineffective. The operation principle is based on the fork vibration, generated by the electronic insert, which is absorbed by the product when it is in contact with the vibrating fork. The electronic insert is removable and can be powered with any voltage. The calibration, fully digital, is via two buttons and allows the user to select the alarm type (Max-Min), the sensitivity (Low-High) and the delay time (1s to 4s). It is also available in ATEX version RSL200 RSL200 controls the level thresholds of powders or granular products using the vibrating fork method. Typical applications include the protection of overfl ow or product failure monitoring for fl our, cereals, milk, dust, sand, cement, plastic or organic granules, polystyrene foam, etc.. RSL200 RSL100 Applications granules / powders liquids Material in contact Product max temperature SS 316 SS C 150 C Max pressure 25 bar 40 bar Maximum granules size 12 mm - Viscosity max cst max at 25 C Probe length STD version Max rigid probe length Process connection Atex certification 202 mm 63 mm 3 m 2 m G 1½ / SS 316 Atex II 1/2D Ex td A 20/21 IP66 T 150 C G 1 / G 3/4 / G 1/2 / DIN Protection IP66 IP66 Power supply Vdc / Vac Vdc RSL100 Suitable for control of liquids such as oils, water, paints and transparent inks, sauces, milk, liquids containing carbon dioxide, oil foaming. RSL100 is designed as a shortcut to 2 / 3 wires and for universal use in tanks and pipes - 7

8 LEVEL The resistive principle uses the conductivity of the liquid to be tested. The electrical current travels through the liquid and comes into contact with the electrode detecting the level reached. The probes are available with single or multi-rod or rope electrode (max 5). Process connections are extremely varied, threaded, fl anged or sanitary type with different sizes and materials. Control units associated with the resistive probes allow the user to set the sensitivity, the delay times and also check the connections between the probe and the control units. RL6 RL8 Applications liquids liquids Material in contact SS 316 / PVC / PTFE / FEP SS 316 / PVC / PTFE Product max temperature 150 C 150 C Max pressure 25 bar 25 bar Probe length 3 m 30 m Process connection G ¾ 1½ / NPT ¾ 1 DIN DN / clamp 1 2 Connection material PVC / SS 304 L / SS 316 G 1 1½ / 1 NPT clamp 1 2 SS 316 / PVC / PTFE Atex version no no Protection IP66 IP66 Power supply no no RL6 Resistive instrument, rod probes, including multi-electrode, for the liquid level control in food, pharmaceutical or in general industrial processes. RL8 Resistive instrument, rope probe for control of wells or groundwater. 8 - misura level measurement di livello

9 The capacitive principle for continuous level measurement is one of the most widely used for industrial applications. Thanks of its fl exibility it can be applied to measurements of liquids, solids, granules and powders. The operation is based on the detection of the capacity of the insulation interposed between the electrode and the material to be measured. The instrument can be compact (electrode and insert) in a single unit or separate with a remote insert for applications where there are high process temperatures, high vibration levels or where it is impractical to use a compact version. The electrode type choosen determines the unit model (CLT4, CLT5, CLT7, CLT8). An electronic capacitive insert mounted into a protective housing determines the type of operation of the unit and that is: - Level Transmitter, 4 20 ma (TC22 25) - Level Transmitter, 4 20 ma + threshold relay (TC26 29) - Level Transmitter, 4 20 ma 2 wires (TC30) The operation, fully digital, allows the calibration via two buttons or s/w installed on a PC. CLT4 CLT5 CLT7 CLT8 Applications Material in contact Product max temperature Max pressure Max probe length liquids / solids liquids solids / granules liquids SS 316 / PVC / PTFE PVC / PTFE carbon steel / SS 316 / PE SS 316 / PVC / PTFE 150 C 150 C 85 C 150 C 25 bar 25 bar 6 bar 25 bar 3 m 3 m 30 m 30 m Process connection G ½ / G 1 / G 1½ / 1 NPT DIN DN / clamp 1 2 DN flange ANSI 2 4 fl ange Connection material carbon steel / SS 316 / SS304L / PVC / PTFE Power supply Protection 24 Vdc / ac 115 Vac / 230 Vac G 1½ DN fl ange PVC / PTFE 24 Vdc / ac 115 Vac / 230 Vac G 1½ DN fl ange ANSI 2 4 fl ange carbon steel / SS 304 SS Vdc / ac 115 Vac / 230 Vac G 1 / G 1½ / 1 NPT DIN DN / clamp 1 2 DN fl ange ANSI 2 4 fl ange carbon steel / SS 316 PVC / PTFE / SS 304 L 24 Vdc / ac 115 Vac / 230 Vac IP66 67 IP67 IP66 67 IP

10 LEVEL CLT4 / CLT7 CLT4 Level measurement for contact Threaded, flanged and sanitary connections Suitable for measuring of liquids and powders IP65 67 protection PTFE or PVC insulation CLT7 Level measurement for contact, on top installation PE coated rope For measurements of powders and granules Maximum probe length 30 cm CLT4 Capacitive instrument, rod probe suitable for general or chemical-pharmaceutical applications for level measurement of conductive, non-conductive liquids or granules. Installation on the top of metal tanks. CLT7 Capacitive instrument, rope probe for continuous level measuring. Suitable for general use or level measurement of granules and powders. Installation on the top of silos misura level measurement di livello

11 CLT5 / CLT8 CLT5 Level measurement for contact in plastic tanks Design with reference electrode PVC / PTFE connection material Suitable for the measurement of liquids including aggressive chemicals IP67 protection CLT8 Level measurement for contact, on top installation Threaded, flanged and sanitary connections Suitable for liquid level measurement IP66 67 protection PTFE or PVC insulation CLT5 Capacitive instrument, twin rod probes suitable for continuous level measurement in chemical / food industries. Suitable for level measurement in liquids. IP67 protection, installation on the top of plastic tanks. CLT8 Capacitive instruments, rope probe for measuring of liquid levels, installation on top of metal tanks

12 Application RPL51 liquids RPL52 liquids Working frequency Working temperature Process pressure Range of measurement Antenna material Process connection Process connection material Accuracy Power supply Protection Output signal 6 GHz Band C 6 GHz Band C C C -1 3 bar bar 30 m 30 m PP o PTFE PTFE G 1½ DN 50 fl ange 150 PN 16 PVDF SS 316 L with PTFE coated ± 10 mm ± 10 mm 24 Vdc / 230 Vac 24 Vdc / 230 Vac IP 67 IP 67 2/4 fi li 4 20 ma Hart 2/4 fi li 4 20 ma Hart The instrument antenna sends tight electromagnetics pulses on base band 6 GHz (C-band). These pulses are irradiated and then refl ected, from the product surface to be measured and received back by the same antenna. A method of time elongation, allows the assessment of the time of fl ight which, by its nature, is particularly short, to be able to calculate with accurancy the distance and hence the level of the product to be measured. Dust, vapors, high temperatures and pressures are well tolerated and allow the use of units in critical conditions. An advanced computerized system by envelope curve and the possibility to map the false echo curve allow to improves the measurement in critical conditions. Thanks to the two-wire technology (2-wire) and HART communication makes the installation, commissioning and use of the units simple

13 LEVEL RPL51 / RPL52 RPL51 - RPL52 Level Transmitters by continuous pulsed radar without contact with the product Measuring range up to 30 m Measurement accuracy: ± 10 mm High temperature and pressure of process ATEX II 1 G/D Ex ia IIC T6..T3 Ga RPL51-52 Are level transmitters without contact with the product. Radar pulses emitted by antenna are refl ected by the product surface and received back. The system of signal management integrated on board of RPL converts the fl ight time into the distance of the surface of the product from the probe and, consequently, into the level. Through the alphanumeric display of programming it is possible to input all the data related to the level measurement and display the echo map in the HART version. The RPL51 / 52 are ideal for level measurement of liquids for ranges greater than 10 m. The frequency of 6 GHz allows the RPL 51/ 52 to tolerate the presence of vapors for applications in tanks and for measurements in tanks with demanding pressure and temperature conditions misura level measurement di livello

14 RPL55 RPL56 RPL57 Application liquids liquids liquids Working frequency 26 GHz Band K 26 GHz Band K 26 GHz Band K Working temperature C C C Process pressure -1 3 bar bar -1 5 bar Range of measurement 10 m 30 m 20 m Antenna material PVDF PTFE / SS 316 L PTFE Process connection G 1½ G 1½ / DN fl ange DN Process connection material PVDF SS 316 / PP / PTFE SS 316 / PTFE Accuracy ± 5 mm ± 3 mm ± 3 mm Power supply 24 Vdc / 230 Vac 24 Vdc / 230 Vac 24 Vdc / 230 Vac Protection IP 67 IP 67 IP 67 Output signal 2/4 wire 4 20 ma Hart 2/4 wire 4 20 ma Hart 2/4 wire 4 20 ma Hart Atex yes yes yes RPL58 RPL59 RPL61 Application solids / powders liquids Working frequency 26 GHz Band K 26 GHz Band K Working temperature C C Process pressure bar atmospheric Range of measurement 70 m 15 m 30 / 70 m Antenna material PTFE / SS 316 L PA66 / aluminium PA66 coated Process connection G 1½ / DN flange bracket / G1 Process connection material SS 316 / PP / PTFE SS 316 / PP Accuracy ± 15 mm ± 10 mm ± 3 mm Power supply 24 Vdc / 230 Vac 24 Vdc Protection IP67 IP66 Output signal 2/4 wire 4 20 ma Hart 2 wire 4 20 ma Hart Atex yes yes The antenna of the instrument sends tight electromagnetics pulses on base band 26 GHz (K-band). These pulses are irradiated by antenna and then reflected, at least in part, from the surface of the product to be measured and received back by the same antenna. A method of time elongation, allows the assessment of the time of fl ight which, by its nature, is particularly short, to be able to calculate with accurancy the distance and hence the level of the product to be measured. The K-band, with a frequency of electromagnetic waves of 26 GHz, allows the detection of the products surface whose dielectric constant is low.on the other hand it is not advisable to use in the presence of water vapor or conductive or damp dusts

15 LEVEL RPL55 / 56 / 57 / 58 / 59 / 61 RPL Continuous level measurement without contact for solids, liquids, pastes and slurries Temperature and pressure changes with minimal interference Measuring range max 70 m Process pressure up to 40 bar Calibration by module with alphanumeric display or via HART communication 2 or 4 wire technology Pulse Radar at 26 GHz (K-band) Display of alphanumeric level measurement and the curve of the echo signal Storage system, recognition and compensation of false echoes ATEX II 1 G/D Ex ia IIC T6..T3 Ga 20 - misura level measurement di livello

16 Features The advanced electronics, combined with the echo management system allows the use of the RPL in severe process conditions. The recognition function of the false echo fi lters false echoes in order to obtain a stable level measurement. The versatility of the RPL makes it suitable for application in various types of process conditions, including the most severe. For example: high temperature or high pressure, low dielectric constant of the product etc.. The low energy of the pulse Radar is not harmful for the environment or for those who work in close proximity to it

17 LEVEL A short electromagnetic pulse is sent along a rope and is refl ected back once it reaches its end. If the rope is immersed into the product to be measured, in the point of contact air/product an echo is generated by this discontinuity. The echo comes back to the same rope and is detected as a surface of the product. A method of time elongation, allows the assessment of the time of fl ight which, by its nature, is particularly short, to be able to calculate with accurancy the distance and hence the level of the product to be measured. These are particularly suitable for use with powders, granules, bulk solids such as plastic chips in high and narrow silos, as well as in the food industry because these instruments do not require new calibrations when changing the type of product. They are also suitable for materials for construction, sand, gravel, etc... The calibrations are possible even in the absence of product. RWL51 RWL52 RWL53 RWL54 Application Type of probe Process temperature Process pressure Probe length Probe material Process connection Connection material Accuracy Power supply Protection Output signal liquids / solids liquids / solids liquids liquids rope / rod rod coaxial rope / rod C C C C bar bar bar bar 3 m (rod) / 30 m (rope) 3 m 3 m 3 m (rod) / 30 m (rope) SS 316 L / ss 304 L SS 316 L SS 316 L SS 316 L G 1½ / G 2 DN flange G 1½ / G 2 G 1½ / G 2 SS 316 L SS 316 L SS 316 L SS 316 L ± 10 mm ± 10 mm ± 10 mm ± 10 mm 24 Vdc / 230 Vac 24 Vdc / 230 Vac 24 Vdc / 230 Vac 24 Vdc / 230 Vac IP67 IP67 IP67 IP67 2/4 wire 4 20 ma Hart 2/4 wire 4 20 ma Hart 2/4 wire 4 20 ma Hart 2/4 wire 4 20 ma Hart 22 - misura level measurement di livello

18 RWL51 / 52 RWL51-52 Guided microwaves level transmitters Ranges up to 30 m High temperature and high process applications RWL51 / 52 The instrument generates the high frequency pulses through a probe. The pulses are refl ected by the product surface, detected by the internal receiver and converted by microprocessor into level data. The measurement technique, coupled with the EchoDiscovery management system, and the versatility of the RWL series allows the units to be used in severe process conditions with a variety high temperature, high pressure and low dielectric constant. They can be used with materials such as cement, sands and similar products

19 LEVEL RWL53 / 54 RWL53 Guided microwaves level transmitters Ranges up to 3 m For products with low dielectric constant RWL54 Guided microwaves level transmitters Ranges up to 30 m High temperature and process pressure up to 250 C RWL53 COAX version allows measurement in plastic containers of products with low dielectric constants, but is not suitable for measurements on granules and powders. RWL54 Allows the liquids measurements with very high temperature, max 250 C 24 - misura level measurement di livello

20 LEVEL Since 1977, SGM LEKTRA has manufactured instruments for the measurement and control in industrial processes and in the integrated water cycle. SGM LEKTRA offers instruments for measuring flow, pressure, level, field communication and complete automation solutions. Our portfolio consists of a wide range of products, designed to meet process requirements with continual product development to meet changing market requirements. The continuous development and research of new technologies to improve and expand our range of products is an integral part of our business. For this reason, the R & D laboratory in Italy, who is recognized by MIUR (Ministry of the University and Research), has been greatly enhanced in human resources and is engaged in the development of products with greater integration and communication with the field. SGM LEKTRA worked, until a few years ago, mainly on the domestic market, with some presence in neighbouring European countries. With a wider product range the company has revised its strategy, both for the sales production and subcontracting with an increasingly international orientation resulting in a constant significant increase in export. To complete our strategy we have established some important presences in developing markets in order to increase our global penetration into every country of the world. The future of our technology and our products has already outlined the current activities of our R & D laboratory and can be summarized in three words: integration, innovation and interaction. ITALY AUSTRALIA CHINA COLOMBIA DENMARK ENGLAND FRANCE GREECE HOLLAND INDIA KOREA MEXICO MOROCCO SAUDI ARABIA SPAIN SWEDEN TURKEY 26 - misura level measurement di livello