Georg Fischer Piping Systems Point, Ultrasonic & Radar Level Products Presented to valued clients attending the Technology Summit hosted by: Kendall Group/ J.O.Galloup
+GF+ Offering Level Measurement Continuous Measurement Mode Point Level Detection / Limit Switch Mode Type Principle 2250 Hydrostatic 2260/2270 2290/2291 Ultrasonic Radar Type Principle 2280 Vibration 2281 Conductive Multipoint 2282 Guided Float 2284 Ultrasonic Gap 2285 Float Switch 2
Point Level overview 2280 Vibration forks 2284 Ultrasonic gap switch 2281 Conductive multipoint switch 2282 Guided float switch 2285 Float switch 3
2280 Vibration forks (Tuning-/swing forks) Rugged Stainless Steel Up to 40 bar (580psi) ATEX Options Focus: Water, dilute chemicals Specifications Body material Output Connection Approvals Process connection Stainless steel 3-wire PNP/NPN, 2-wire AC, Relay Cable, DIN Connector, Terminal box CE, ATEX, WHG 1 BSP, 1 NPT 4
2284 Ultrasonic gap switch No moving parts Option to PFA coated tuning forks Compact body for narrow applications Focus: Chemicals, compact applications Specifications Body material Output Connection Approvals Process connection PPS Relay ( maximum 30volts) Cable, Terminal box CE ¾ BSP, 1 NPT, 1 BSP 5
2281 Conductive multipoint switch 2281 2 4 individual switching points Simple adjustment of switching points Attractive pricing Lengths (19, 39, 59 max 108 or cut to custom length) Focus: Conductive, non-sticking liquids Dual Channel Relay Specifications Body material Output Connection Approvals Process connection Stainless steel External relay (Up to four) Terminal box CE 1 ½ US/BSP 6
2282 Guided float switch 3.19 in Optimized chemical compatibility Very compact design Simple and affordable 0.69 in Focus: Water, chemicals & small tanks Specifications Body material Output Connection Approvals Process connection PP, PVDF Reed contact ( 30volt, @ 1 A resistive, 0.25 A inductive) Cable, connector CE ½ BSP, ½ NPT 7
2285 Float switch Suitable for drinking & waste water Double-chambered float Mercury free electrical switch Specifications Body material Output Connection Approvals Process connection Focus: PP Micro switch PVC cable CE Cable (attached to tank wall) Municipal treatment, sump shafts, drinking water 8
Ultrasonic Portfolio Blind & Display units Single output (4...20 ma) Multiple output (4...20 ma, HART, Relay) 2260 Transmitter Measuring ranges: Transmitters: 13 to 49 ft Sensors: 13 to 20 ft Standard and ATEX versions BSP and NPT process connections 2270 Sensor 9
Ultrasonic Key Features & Benefits Hardware features Sensing field Narrow sonic beam Low risk of detecting disturbing objects High reliability thanks to stronger echo Reliable measurement in narrow tanks / spaces Other brands: 7-12 GF Type 2260 / 2270: 5-6 Display / Quick-start Easy-to-read display / comfortable quick-start menu Time saving installation Easy process parameter monitoring at a glance Simplified maintenance / failure analysis 10
Ultrasonic Key Features & Benefits Sensor material Sensor body available in PP or PVDF lifetime Optimized chemical compatibility - long sensor Software features Echo map Recognition of a one disturbing object Reliable measurement without error signals High flexibility in positioning a sensor 11
Ultrasonic Key Features & Benefits Software features Damping Blanking of liquid waves, dust, etc. Reliable measurement without interruptions No system down time Reliable monitoring under difficult conditions Volume calculation Integrated volume calculation Liquid saving due to higher volume accuracy Simplified measurement in non-cylindrical tanks 12
Ultrasonic Overview Working Principle Ultrasonic sound waves are reflected on any flat surface liquid or solid Non-invasive measuring principle Distance is calculated by measuring the transit time High frequency avoids errors caused by ambient noise NOTE: Foam, vapors and wind can dampen or interrupt ultrasonic waves 13
Ultrasonic Working Principle Transit time measurement Amplitude 2 X Distance Sensor totarget Sound waves Transducer burst Burst Echo Time transmission mode receive mode 14
Ultrasonic Working Principle Distance / Fill level / Fill volume (H) (D) Sensor measures distance (D) between sensor head and liquid surface Sensor calculates liquid level if tank height (H) is known Ø (H) Sensor calculates liquid volume if tank height (H) & diameter Ø are known 15
Ultrasonic Working Principle Influence of various surfaces on the signal quality Pure Liquids Granulates Light foams GOOD Heavy foams Limited Limited BAD 16
Ultrasonic Working Principle Influence of other effects on the signal quality Wind Heat waves Vapors & Gases Dust 17
Technical Specifications Level Ultrasonic Transmitter Type 2260 Specification Measuring principle Measuring ranges Accuracy Process connection Sensor material Values Ultrasonic, transit time 0.65 to 13 ft / 0.82 to 20 ft / 1.5 to 49 ft +/- 0.2 % of reading; +/-0.05% of full range 1 1/2" or 2" BSP, NPT thread or flange (15 m version) PP, PVDF Process temperature -22 to 194 F Supply voltage Output Approvals 12 36 V DC 4 20 ma, HART, relay ATEX, CE, RoHs 18
Technical Specifications Blind Ultrasonic Level Sensor Type 2270 Specification Measuring principle Measuring ranges Accuracy Process connection Sensor material Values Ultrasonic, transit time 0.65 to 13 ft/ 0.82 to 20 ft / 1.5 to 49 ft +/- 0.2 % of reading; +/-0.05% of full range BSP, NPT thread PP, PVDF Process temperature -22 to 194 F Supply voltage Output Approvals 12 36 V DC 4 20 ma, HART ATEX, CE, RoHs ~199 2 BSP or NPT 19
Ultrasonic Installation Tips Programming Concept B. A. Max measuring distance of unit B. Min measuring distance dead zone C. Max measuring range of unit D. Programmed measuring range for application E. Distance measured = DIST F. Level (calculated: H DIST) G. Volume (calculated DIST Level) H. Far end blocking A. D. C. E. F. G. H. 20
Installation Tips Sensor position GOOD BAD UV Protection 21
Ultrasonic Installation Tips Choosing correct tank connection Max. measuring distance 13ft 20ft 49ft Minimal measuring distance 0.65ft 0.82ft 1.48ft X D 39.4 8.3 78.7 11.8 196.8 22.0 393.7 39.4 590.5 57.1 L 5.9 2.0 2.4 7.9 2.0 2.4 9.8 2.6 2.6 11.8 3.1 2.9 r D 22
Ultrasonic Installation Tips Solutions in case of Foam 2 Move sensor to position with less foam 3 Use stand pipe 1 Choose wider range (stronger signal) 4 Choose alternative sensor technology 23
Installation Tips Speed of sound in gases Use parameter P31 to adjust the velocity if it differs largely from that of Air = 343 m/s 24
Installation Tips Hart communication Maximum of 15 devices per loop 25
The measurement principle Radar great! But why? 26
Current GF Technologies - Offering Continuous and point level options Offers proven range of technologies and materials Contact and non-contacting principles available Issue at hand Radar technology needed to complete portfolio 27
Ultrasonic & Hydrostatic Technologies Application Limitations Quality of transmission Air Consistency of weight force / density 28
Hydrostatic Technologies Application limits Hydrostatic Level Sensor Type 2250 Influences the process liquid Changes in density Changes in temperature Mixing applications Pressure changes Ceramic disc Capillary tube Membrane stimulus that impinges clear detection of weight of the water column Coating liquid/particles may prevent free movement of membrane Membrane requires atmospheric pressure via capillary tube if kinked measurement compromised 29
Radar Technology Time transit measurement Similar to ultrasonic but at the speed of light Electronics emit and receive electromagnetic energy microwaves, millions of pulses/sec! Distance = C(speed of light) x T (transmit time)/2 Does not require a transmission media Microwave mechanical wave Microwaves = Result of positive & negative charges 30
Radar Technology Advantages It s more robust! Less affected by fumes or gas layers Independent of temperature & pressure Less sensitive to agitation Can look through slightly conductive foam layers Changing characteristics of liquids does not affect measurement Less sensitive to agitation Contact & non-contacting units available 31
Radar Level Type 2290 / 2291 Type 2290 Non-Contact Type 2291 Guided or Contact 32
Type 2290 / 2291 Why two types of Radar? 2290 non-contacting 2291 contacting 33
Radar 2290 In Detail Principle & Highlights Unguided microwaves at 26GHz Maximum beam angle of 19 Transit time measurement Emitting electromagnetic single pulses to process media Receive reflection Calculate distance through time delay Highlights: Non-contact, no moving parts Can be isolated from process with enclosures Can measure into closed plastic vessels e.g. PP Background image function 34
Radar 2290 PBT housing, IP67/NEMA Options available Display FPM, EPDM Seals Optional PP, plastic-welded Standard SS316 Ti, DIN 1.4571 PTFE Optional 35
Radar 2290 in detail Specifications Specifications: Range: 0.65 ft to 59 ft Housing / Antenna : PBT/PP, PBT/SS316 Ti Antenna enclosures: SS316, PP, PTFE Frequency: 26 GHz (K-Band) Min. beam angle: 19 Min. dielectric constant: 1.9 Max. pressure: 363 psi (SS316) & 44psi (PTFE,PP) Medium temp.: -22 F to 212 F (SS316) & 176 F (PTFE, PP) Accuracy: +/- 3mm (0.12 ) Protection: IP67 / NEMA 6 Process mount: 1 ½ NPT Outputs: 2 wire 4-20mA, HART 36
Radar 2290 in detail Measuring range versus dielectric constant www.gfps.com/level 2 Gasoline 18 Acetone 80 Water 37
Radar 2290 Installation Tips Agitation May cause loss of reflected energy (signal strength) 38
Radar 2290 Installation Tips Heavy Foams Lower conductive layers can be measured through Strongly depends on application (e.g. tank size & size of bubbles) Site tests recommended Maximum range can be reduced up to 50% Note: Guided radar Can outperform unguided radar in cases of heavy foaming 39
Radar 2290 Installation Tips Heavy condensation Moisture may interrupt / distort transmission of pulses Sensor alignment Reflected energy can not be received Simple answer 40
Radar 2290 Installation Tips Socket nozzle Assure antenna length exceeds socket length Field Vector E Magnetic Field B X Screws Object Polarization plane Can be adjusted to avoid multiple objects 41
Radar 2290 Installation Tips External Measurement through plastic vessels Plastics with low dielectric constant e.g. PP Min. 24 in Higher dielectric constant of media the better Make use of graphical reflection curve to find best mounting position Background image useful to ignore in-tank interference Metal Low dielectric plastics PP 2.0 PVDF 8.0 PE 2.2 42
Radar 2290 Installation Tips Programming Concept B. A. Max measuring distance of unit B. Min measuring distance dead zone C. Max measuring range of unit D. Programmed measuring range for application = H E. Distance measured = DIST F. Level (calculated: H DIST) G. Volume (calculated from Level) D. C. E. A. F. G. 43
2290 Installation Tips Menu Structure Onboard Main menu BASIC SETUP OUTPUT SETUP OPTIMIZATION CALCULATION SERVICE Content Parameter group- Basic Setup/Units/ Engineering Units Parameter group- Output Setup/Analog Output/Current Mode Parameter group- Optimization/ Dead Zone/ Blocking Calculations / Specific Gravity Service functions, calibration, test and simulation Eview configuration software 44
Radar 2290 Installation Tips Background image function Helps to block out reflections from fixed objects Pipes Welding seams Heating elements Takes an image of the empty tank with all its reflections from fixed objects Any change will be considered as filling level and objects will be ignored constant comparison of current and reflected image More sophisticated than ultrasonic which can only ignore one particular object 45
Guided Radar 2291 In Detail Principle & Highlights Guided microwave pulses along rod or rope Reduced sensing space compared to unguided Transit time measurement Emitting electromagnetic single pulses to process media Receive reflection Calculate distance through time delay 24 Ø Highlights: SS316 rods or ropes available Can be isolated with coated probes Great for compact geometries and high turbulences Easy setup and onsite configuration 46
Guided Radar 2291 (Rod style) In Detail Principle medium e r =10 Emitted pulse Reflected pulse medium e r =2.5 Emitted pulse Reflected pulse 47
Guided Radar 2291 (Rope style) In Detail Principle Emitted pulse Reflected pulses Emitted pulse Reflected pulses 48
Guided Radar 2291 In Detail Models available PBT housing, IP67/NEMA 6 Display or Blind SS316 or coated process connection 6m stainless steel rope PP or PFA coating on request Probe length adjustable onsite (SS316) 2m stainless steel rod FEP coating on request 49
2291 (Rod style) in detail Specifications Specifications: Housing: PBT Probes: SS316 rod (8.2ft) 8mm (0.31 ), SS316 rope (19ft) 4mm (0.16 ) PP, PFA or FEP on request Min. dielectric constant: 1.9 Max. pressure: 600 psi SS316 & 375 psi plastic lined Medium temp.: -6 F to 212 F (SS316) & 76 F (PTFE, PP) Accuracy: +/- 5mm ( 0.2 ) Protection: IP67 / Nema6 Process mount: 1 ½ NPT Outputs: 2 wire 4-20mA, HART 50
Guided Radar 2291 Installation Tips Installation General considerations & options 2291 1. Agitators / Stirrers 2. Support beams, welding seams 3. Sudden change of geometry 4. Heating tubes 5. Reference chamber / by-pass free of objects & agitation 6.Magnetic field: Any perpendicular object will reflect back to emitter 51
Guided Radar 2291 Installation Tips General Assure earth ground when used on steel vessel Avoid high turbulence forces Do not anchor cable/rope Do not contact the tank bottom with the probe 52
Guided Radar 2291 Installation Tips General (15.75 ) 400mm minimum NO overlapping nozzles Avoid bending of cable probe 53
Guided Radar 2291 Installation Tips Adjust length of rope onsite Remove weight Cut cable prevent cable strains splaying out Insert cable back into weight and tighten screws Adjust software parameters to new length, Maximum distance Rod style cut to length 54
Installation Tips Wiring for HART Communication Maximum of 15 devices per loop 55
Radar 2291 Installation Tips Programming Concept B. A. Max measuring distance of unit B. Min measuring distance dead zones C. Max measuring range of unit D. Programmed measuring range for application = H E. Distance measured = DIST F. Level (calculated: H DIST) G. Volume (calculated from DIST Level) D. E. C. A. F. G. B. 56
Guided Radar 2291 Installation Tips Echo Map Interpretation 1. Initial pulse 2. Flange reflection 3. Level signal 4. Interference signal Signal gain Automatic gain of electronics 57
Guided Radar 2291 Installation Tips Menu Structure Onboard Display Main menu Basic Setup Output Setup Application Submenu TANK HEIGHT CURRENT MODE APPLICATION TYPE DEAD ZONE CLOSE-END BLOCKING DAMPING TIME PROBE LENGTH FAILURE CURRENT CURRENT MIN 4mA CURRENT MAX 20mA ERROR DELAY Eview via laptop Download Eview Software http://www.gfps.com/eview Download Eview USB Drivers http://www.ftdichip.com/drivers/vcp.htm 58
Eview General Both types are compatible with Eview configuration software Easy configuration of the unit Fine tuning of settings Linearization curve Troubleshooting 59
Overview Target Markets & Applications Water treatment Chemical process industry Treatment plants Municipal treatment Day storage tanks Mobile treatment skids Aquariums Process tanks Plating process 60