Level Limit Switch liquiphant FTL 365 / FTL 366

Transcription

1 Technical Information TI 86F/00/en Level Limit Switch liquiphant FTL 65 / FTL 66 Level limit switch Liquiphant II with vibrating probe. For all types of liquid. With explosionproof housing for use in hazardous areas. Level limit switch Liquiphant II. Limit switch with T housing with separate terminal chamber: Liquiphant FTL 65 Compact version Liquiphant FTL 66 Extended version Application The Liquiphant is a level limit switch for all liquids. It can monitor the upper and lower level limits in tanks and vessels and is suitable for all liquids with temperatures lying between 40 C and +50 C ( 40 F and +00 F) with a viscosity up to mm /s (cst) and a density greater than 0.5 g/cm. For particularly corrosive liquids the ECTFE-coated version or the Hastelloy-version are suitable. Because of its flameproof housing (Ex d / EEx de) the Liquiphant can be used in hazardous location. The Liquiphant is used wherever float switches were previously installed. It is also used in those applications where float switches are not suitable. (due to build-up, turbulence, flow, air bubbles). Features and Benefits Maintenance free: Operates completely reliably even with heavy build-up. Cost-effective: An economical standard Liquiphant can be used in all applications. It operates safely in all types of liquids and under all process conditions, independent of turbulence, electrical properties, solids or gas content, foam, or tank vibrations. Accurate switching: A constant switchpoint with millimetre accuracy without need for calibration. Operational safety: Thanks to its improved and patented system with intelligent drive electronics, the Liquiphant is unequalled in its tolerance to external vibrations. The tines are monitored electronically for corrosion. Proven in practice: The reliability you need is the experience we offer with more than measuring points already installed. Endress +Hauser The Power of Know How

2 Endress + Hauser Measurement Principle Operating Principle of the Liquiphant The sensor in the form of tuning fork is made to vibrate at its resonant frequency. When the sensor is immersed in the liquid, the resonant frequency changes. The frequency change is detected and then converted into a switching signal. The built-in switch for minimum or maximum detection enables the Liquiphant to be used for each application in the required fail-safe mode. Installation Possibilities A wide range of application-specific designs, process connections and high corrosion-resistant materials allows limit detection of all kinds of liquids in tanks and pipes. A few examples: Top mounting to monitor the maximum level. Optionally with a sliding sleeve to vary the switchpoint. Side mounting to monitor the minimum level. Mounted in a pipe as dry-run protection for the pump. The limit switch with greater operational safety, even for liquids which are adhesive, causing build-up, corrosive, agitated, sparkling or foaming Measuring System Electronics chamber Terminal chamber The complete measuring system consists of: Liquiphant as compact version or with extension tube Process connection: Threaded boss, flange or hygienic coupling Electronic insert for alternating or direct current, with electronic switching or a relay contact Housing A clear description of Liquiphant and its options can be found on page 7 in the product structure. T Housing Aluminium housing with epoxy coating Electronics chamber and terminal chamber are completely separated from one another to ensure operation under extremely rugged conditions. Protection: IP 66 Housing can be rotated 00 9 ø 04 9

3 Process Connections Application-specific process connections and designs ensure an ideal adaptability to the mounting requirements. Threaded boss G A or " NPT Flanges according to various standards: DIN, ANSI, JIS For particularly hygienic requirements, e.g. food processing: Milk pipe coupling Triclamp coupling Weld-in socket for flush mounting Fork and extension tube are polished. Process connection materials: Stainless steel 6 Ti (.457) or Hastelloy C (.460), the flange version additionally available with ECTFE- (Halar -) coating. Accessories High pressure sliding sleeve for variable switch point setting (when commissioning) Separate flanges Weld-in socket Dimensions in mm 00 mm =.94 in Threaded boss GA or - / NPT Pipe coupling DIN 85, DN 50 Triclamp coupling ISO 85, " Flange version DIN, ANSI, JIS FTL 65 Compact version FTL 66 Extension tube version 6mm ø ø65-0, mm VMQ.457 (AISI 6 Ti) 5mm Above: Weld-in socket* with fork orientation for FTL 65 with GA thread for flush mounting Order No Below: Weld-in socket* without fork orientation for FTL 65 with GA thread for flush mounting (with FPM-O-Ring) Order No Separate flange* for FTL 65 / 66 with GA threaded boss ~ ,6 ø9 GA ø60 4, GA * These accessories have no FM or CSA approval ** No CSA approval Sliding sleeve** High pressure sliding sleeve for Liquiphant FTL 66 for variable switchpoint setting. Operating pressure up to 40 bar. (FM: up to 00 psi) Thread G / A or / - / NPT

4 Installation Please note when mounting the Liquiphant: The vibration of the tines must not be blocked, e.g. due to adhering material. If build-up occurs then sufficient distance to the tank or pipe wall must be maintained. Nozzle Mounting When mounting the sensor in a nozzle, the viscosity of the liquid should be taken into account: ➀ Generally: The process connection preferably flush with the tank wall ➁ With low viscosity liquids: mount the sensor so that the liquid can flow out of the nozzle and uncover the tines. ➂ With high viscosity liquids: nozzle length max. 60 mm (with a "-nozzle). Better: Use a nozzle with a larger diameter. ➃ Nozzle diameter min. DN 50 (min. ") ➀ ➁ ➂ ➃ min. DN 50 (min. ") The housing can be turned through 00 Pipe Mounting For use as dry-run protection for pumps preferably mount the Liquiphant in a vertical pipe. When determining the length of the nozzle take the pipe diameter into account If mounted in a horizontal pipe, partial pipe filling can be detected if the correct nozzle length is chosen. Liquiphant with Halar Coating With ECTFE (Halar ) coated versions please note: Maximum operating temperature 0 C (50 F) The temperature difference T - T between the inner and outer surfaces of the flange must not exceed 60 C (40 F). If necessary, insulate the outer surface of the flange. Liquiphant with Halar coating ➀ Insulation The tines must not touch the tank or pipe wall nor the sediment T ➀ max 0 C T 4

5 Electrical Connection Electromagnetic Compatibility: Interference Emission to EN 66, Electrical Equipment Class B Interference Immunity to EN 66, Annex A (Industrial) and NAMUR Recommendation NE (EMC) For general information on EMC (test procedures, installation hints) see TI 4F/00/en. Electronic Inserts Electronic switch with: Two-wire AC connection Three-wire DC connection PNP Three-wire DC connection NPN Universal connection with potential free relay contact The electronic inserts are exchangeable without requiring a recalibration! FEL Two-wire AC connection V... 5 V, 50 / 60 Hz Load for short periods max..5 A / 40 ms max. 75 VA / 50 V max. 6 VA / 4 V Continuous load max. 50 ma max. 87 VA / 50 V max. 8.4 VA / 4 V Minimum load min..5 VA / 50 V (0 ma) min. 0.5 VA / 4 V (0 ma) Residual current when open 4 ma Voltage drop across the electronic switch when closed, 0 V Do not use the FEL without an external load! FEL Three-wire DC connection PNP Continuous load max. 50 ma for short periods A, max. s Operating voltage 0 V V Overload and reverse polarity protected Residual current when open < 00 µa Current consumption max. 5 ma FEL Three-wire DC connection NPN Continuous load max. 50 ma for short periods A, max. s Operating voltage 0 V V Overload and reverse polarity protected Residual current when open < 00 µa Current consumption max. 5 ma FEL 4 Universal connection for AC V... 5 V, 50 / 60 Hz or DC 0 V V. Current consumption max. 7 ma. Potential free relay contact. Load capacity: Ex d applications U max. 50 V, I max. 6 A P ~ max. 500 VA, cos ϕ = EEx de applications U max. 50 V, I max. 4 A P ~ max. 000 VA, cos ϕ = P ~ max. 750 VA, cos ϕ 0,7 P max. 00 W ➀ Maximum-/Minimumfail-safe can be switched on the electronic insert ➁ Switch for liquid density: ρ > 0,5: e.g. for liquefied gas; ρ > 0,7: standard setting ➂ The LED indicates the switching status FEL.. Min Max FEL.. Min Max (FEL,, ) Max Min (FEL 4) FEL FEL FEL FEL 4 U<0V L L 4 5 <4mA U<0V <00 µa <00 µa L L 4 5 L L 4 5 Electrical connection Function and switching of the electronic inserts ➀ by cable breakage or fork corrosion U 0V <4mA <00 µa <00 µa L L L L ( ) ( ) 4 5 min. V R R A R 0,5A 0,5A 0,A FEL : U~ 5 V FEL : U 0 55 V FEL : U 0 55 V (AC) L N PE PNP (DC) L L PE NPN (DC) L L PE FEL 4: U~ 5 V U 0 5 V (AC, DC) L N PE a u r 5

6 Setting the Switchpoint If a switchpoint with millimetre accuracy is required please note the diagram opposite. ➀ Top mounting ➁ Side mounting with the tines next to each other or above one another ➂ Bottom mounting ➀ 5 mm 5mm Switchpoint data are related to water (Density g/cm ). For use in extremely light liquids (liquified gas - LPG) the switch on the Liquiphant should be set to Density 0.5". ➁ ➂ 75 mm Technical Data Operating Data Operating pressure in tank: max. 40 bar (600 psi), see the illustration below for permissible temperature Test pressure: max. 60 bar (900 psi) Operating temperature in tank: 40 C +50 C ( 40 F F) Ambient housing temperature: 40 C +70 C (0 F F) Liquid viscosity: max mm /s (cst) Minimum density of the liquid: 0.5 g/cm Switching hysteresis: approx. 5 mm Switching delay: when covered approx. 0.4 s, when exposed approx. s Fail-safe mode: Min./Max. selectable Switching display: LED on the electronic insert Sensor Materials Stainless steel.458 (~AISI 6 Ti), optionally polished Stainless steel.458 (~AISI 6 Ti) with ECTFE coating, together with ECTFE coated flanges Hastelloy C (.460) Certificates See product structure T T 70 C The maximum permissible temperature T at the housing depends on the operating temperature T in the tank T 50 C 0 C -40 C 0 C -40 C 50 C 00 C 50 C T x C = (.8x + ) F The maximum permissible pressure p e in the vessels depends on the temperature T in the vessel. P e 40 bar 5 bar Pe T -40 C 0 C 00 C 50 C T -bar bar = 4.5 psi 6

7 Product Structure FTL 65 Summary of vibration limit switches with T housing with separate terminal chamber: Certificate R No particular approval I CENELEC, EEx de IIC T6 / ATEX II / G Q FM, Class I,II,III, Div., Group A, B, C, D, E, F, G U CSA, Class I,II,III, Div., Groups A, B, C, D, E, F, G EEx de IIB T6 / ATEX II / G 6 EEx de IIC T6 / ATEX II / G* *) With instruction Avoid electrostatic charging (with ECTFE coating) Process connection / Material GR Threaded boss G A, AISI 6 Ti GR5 Threaded boss G A, Hastelloy C GN Threaded boss " NPT, AISI 6 Ti GN5 Threaded boss " NPT, Hastelloy C ME Pipe coupling DIN 85 DN 50, SS 6 Ti Fork surface finish B, polished TE Triclamp (ISO 85) ", AISI 6 Ti Fork surface finish B, polished For flanges see separate table YY9 Special process connection Fork surface finish A Standard fork (Material same as process connection) B Polished fork (only with process connection in SS 6 Ti) Electronic FEL, AC wire, 5 V FEL, DC PNP, 0 55 V 4 FEL 4, AC/DC with relay contact V 5 V AC, 0V 00 V DC 9 Special electronic Housing, cable entry G Aluminium, coated, IP 66, NPT /4 H Aluminium, coated, IP 66, G / J Aluminium, coated, IP 66, M 0x.5 Y Special housing Liquiphant FTL 65 as compact version FTL 65 Liquiphant FTL 66 with extension tube FTL 66 Certificate R No particular approval I CENELEC, EEx de IIC T6 Q FM, Class I,II,III, Div., Group B, C, D, E, F, G U CSA, Class I,II,III, Div., Groups A, B, C, D, E, F, G EEx de IIB T6 / ATEX II / G 6 EEx de IIC T6 / ATEX II / G* *) With instruction Avoid electrostatic charging (with ECTFE coating) Process connection / Material GR Threaded boss GA, AISI 6 Ti GR5 Threaded boss GA, Hastelloy C GN Threaded boss " NPT, AISI 6 Ti GN5 Threaded boss " NPT, Hastelloy C ME Pipe coupling DIN 85 DN 50, AISI 6 Ti Fork surface finish B, polished TE Triclamp (ISO 85) ", AISI 6 Ti Fork surface finish B, polished For flanges see separate table YY9 Special process connection Fork surface finish A Standard fork (Material same as process connection) B Polished fork (only with process connection in AISI 6 Ti and with extensions tube»g«) Sensor length, extension tube material Min. length 0 m, max. length 6000 mm ECTFE- coating only with flanges A mm Length, AISI 6 Ti B mm Length, AISI 6 Ti/ECTFE-coated C mm Length, Hastelloy C G mm Length, AISI 6 Ti polished Y Special length / Material Electronic FEL, AC Wire, 5 V FEL, DC PNP, 0 55 V 4 FEL 4, AC/DC with relay contact V 5 V AC, 0 V 00 V DC 9 Special electronic Housing, cable entry G Aluminium, coated, IP 66, NPT /4 H Aluminium, coated, IP 66, G / J Aluminium, coated, IP 66, M 0x.5 Y Special housing FTL 66 Probe length mm 7

8 Product Structure for Flanges DIN-Flanges to DIN 57 Form B (Hastelloy-clad in Form C) BE BE7 CE5 DN 50, PN 6, AISI 6 Ti DN 50, PN 6, AISI 6 Ti/ECTFE DN 50, PN 6, Hastelloy-clad ANSI-Flanges to B 6.5 (RF) AE ", 50 psi, AISI 6 Ti AE7 ", 50 psi, AISI 6 Ti/ECTFE AE5 ", 50 psi, Hastelloy-clad BG BG7 CG5 CG NG FG BK DN 50, PN 40, AISI 6 Ti DN 50, PN 40, AISI 6 Ti/ECTFE DN 50, PN 40, Hastelloy-clad DN 50, PN 40, AISI 6 Ti with raised face DN 50, PN 40, AISI 6 Ti with groove DN 50, PN 40, AISI 6 Ti with tongue DN 65, PN 40, AISI 6 Ti AG AG7 AG5 AK AL AL7 ", 00 psi, AISI 6 Ti ", 00 psi, AISI 6 Ti/ECTFE ", 00 psi, Hastelloy-clad /", 00 psi, AISI 6 Ti ", 50 psi, AISI 6 Ti ", 50 psi, AISI 6 Ti/ECTFE BM DN 80, PN 6, AISI 6 Ti AN ", 00 psi, AISI 6 Ti BN BN7 CN5 CN BQ BQ7 CQ5 CQ BR DN 80, PN 40, AISI 6 Ti DN 80, PN 40, AISI 6 Ti/ECTFE DN 80, PN 40, Hastelloy-clad DN 80, PN 40, AISI 6 Ti with raised face DN 00, PN 6, AISI 6 Ti DN 00, PN 6, AISI 6 Ti/ECTFE DN 00, PN 6, Hastelloy-clad DN 00, PN 6, AISI 6 Ti with raised face DN 00, PN 40, AISI 6 Ti AP 4", 50 psi, AISI 6 Ti AR 4", 00 psi, AISI 6 Ti AV 6", 50 psi, AISI 6 Ti A 6", 00 psi, AISI 6 Ti JIS-Flanges to JIS B 0 KE 0 K, 50, AISI 6 Ti KE7 0 K, 50, AISI 6 Ti/ECTFE KE5 0 K, 50, Hastelloy-clad Flanges for Liquiphant FTL 65 and FTL 66 YY9 other Flanges, other material on request Supplementary Documentation Technical information (TI) for the other level limit switches of the Liquiphant II family: Liquiphant II Limit Switches Special Documentation SD 047F/00/en Certificate of Conformity KEMA No. Ex-9.C.775 Certificate ZE 09F/00/a Liquiphant FTL 60 / FTL 6 Level limit switch Liquiphant II with vibrating probe. For all types of liquid. Technical Information TI 84F/00/en Liquiphant FDL 0 /, FDL 5 / 6 Intrinsically safe vibration sensor for use in hazardous locations. To connect to the switches Nivotester FTL 0, FTL 70 / 7 Technical Information TI 85F/00/en Safety Instructions (ATEX) II / G, EEx de IIC XA 059F/00/a Endress+Hauser GmbH+Co. Instruments International P.O. Box D Weil am Rhein Germany Tel. (0 76 ) Tx 7796 Fax (076) info@ii.endress.com Endress +Hauser The Power of Know How 08.99/MTM TI 86F/00/en/06.0 CCS/CV5