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T H E R M A T E L® T H E R M A L D I S P E R S I O N

MAGNET ROL THE RM AL DISPERSION PRODUCT S The TotalSpectrum of Solutions M agnetrolproductsemp loym any tech - nologiestom eetthe challengesoflevel and flowcontrol.Thermatelswitchesand transm ittersutilize theprinciplesofthermal dispersionforaccurateand reliablelevel, flow,and interfacecontrol. M

—a wo rldleaderin level and flow controltechnology— designs,manufactures,markets, and servicesleveland flow instrumentationwo rldwide. Ma gnetrolproductgroups are based upon thesetechnologies:

  • AirSonar
  • Buoyancy
  • ContactUltrasound
  • Guided Wave Radar
  • Pulse BurstRadar
  • RF Capacitance
  • Thermal D ispersion
  • Vibration
  • VisualIndicators The industries we serveinclude:
  • Petroleum Production
  • Petroleum Refining
  • Pow er
  • Petrochemical
  • Chem ical
  • W ater& W astewater
  • Pulp& Paper
  • Food & Beverage
  • Pharmaceutical M C O N T E N T S ThermalDispersion Technology
  • An Introduction to Therm atel Thermatel ThermalDispersion Products:
  • TA 2 Mass Flow Transmitters
  • TD1 & TD 2 Flow/Level/Interface Switches
  • TG1 Level/Flow/Interface Sw itch
  • Therm atelSensors
  • Therm atel052-7201 Switch
  • Therm atelR PA Hot TapAssembly

T hermatelproductsutilizethermal dispersion technol - ogy for unsurpassed accuracy and reliabilityin mo nitoringgas flow,liquidflow, liquid level,and inter - face.Amarket-proven technology,thermaldispersion has been inuse by process industriesfor measuremen tand controlpurposes since the early 1960s. Product Scope The Thermatelproductlinehas been structuredto provide customerswitha completerange ofoptions in therma ldispersiontechnology.Each Thermatelproductis engineered and ma nufactured toprovide the highestreli - ability ineven themos tdema ndingprocessenvironments. Thermatelproductsrange from single-pointsw itches to the powerfulTA2Thermal Ma ssFlow Transmitter. The TA2powerfulmicroprocessor-based electronicsmake these unitsthepremierthermaldispersionmass flow me tersintheindustry.They areeasy tosetup,configure, and providehigh levels of accuracy,repeatability, and diagnostics. ApplicationsRange Thermatelproducts are in service w orldw ide in ma ny ofthe mo stdem anding applications.As a flow switch Thermatelisused for gas and liquidapplications for both flow and no/low flow detection.Typical applications involvepum p protection,cooling air/water, reliefvalve m onitoring, exhaustflows and lubrica - tion systems.Thermatel products provide outstand - ing low flow sensitivity with highrangeability. Thermatellevelswitches provide outstanding perform - ance w ith liquids and slurriesina wide variety of deman ding applications including interface,high viscosity, turbulence,high tem peratures,and presenceof foam . For m ass flow m easurem entofairand gases,the Therma telTA2ThermalMa ssFlow Transmitteris withoutpeer.The easy touse instrument isinstalledin num erous flow m easurem entapplicationsincluding comb ustion airflow ,com pressed air/gas and aeration air flow m easurem ent.Othercom m on applications include naturalgas,digester/biogas,flarelines,hydrogen,oxygen, and m any othergas flow m easurementapplications. Principleof Op eration:Switches Flow and leveldetection is accom plishedw hen Thermatel’ssensing elementsdetectchanges inthe heat transfercharacteristicsofthe process media.Asa flow switch,Thermatelsw itches w illrapidlydetectchanges in liquid or gas flow rate by detecting heattransfer,w hich increases athigherflow rates.Leveldetection isaccom - plished by sensing changes inthe thermalconductivity of m edia.Thermatelswitches can also be calibrated to sense difference in heattransferattheinterfacebetw een two dissimilarmed ia,such as oil/w ater,or w ater/foam . An Introduction To Therm atelTechnology & Products Thermatel switches employ twin RTD sensors to sense process change inleveland flowapplications.One sensor measures the surroundingprocess temperatureto provide a reference.The second sensor isself-heatedto establish a temperaturedifferentialabove thereferencetemperature. Inlevelapplications,thecoolingeffectofcontactingmedia reduces the temperaturedifferencebetween the RTDs. In flowapplications,an increaseinflowratefurtherdecreases the temperaturedifference.Ineach instance,the decrease intemperaturedifferencetriggersa relayaction. High Tem peratureD ifferential Low Tem peratureDifferenti al Insertionprobe designs for Thermatelswitchesuse two basic RTD configurations. The twin-tip design with exposed sensor tipsisavail - able in a broader range of materialsand sustainshigher pressures.The sphericaltip design (only available in 316L stainlesssteel)offers greater sensor protection and a faster response to reductionflowor level. © ©

Reference□ RTD Mass balancing element Transm itter Therma telswitches rely on two m iniature sensing elements to detectheattransfer.Resistance Temperature D etectors(RTDs) establish a thermalrelationship that establishes thebasisfor flow and leveldetection.O ne RTD measures the temperatureof the surrounding media wh ich servesas the instrumen t’sreferencetemperature. The second RTD is heatedtoestablish a temp erature differentialabove the reference temp erature.In flow sensing applications,the heatedRTD coolswithincreas - ing flow. In levelsensing applications,the RTD coolsin the presenceof med ia.In each case,coolingthe heated RTD decreasesthe differentialtemperaturebetween the two RTDs .This decreaseis then convertedintoa relay actuation w hichperforms an alarmfunction. Principleof Op eration:Flow Meter Therma ldispersion technology providesa mass flow m easurementof airor gas.Thisis accomp lishedby preciselymeasuringthecooling effectas the m ass(mole - cular)flow passes the heated sensor.The sensorconsists oftwo elements:the reference wh ichmeasures thetem - peratureof the gas and a second elemen twhich isheat - ed ata variable power.This maintains the desiredtem - peraturedifference between the two sensors. The illustration on the top ofthispage show s the am ountof pow errequired tomaintaina constanttem - peraturedifference between the two sensors.Under low m assflow conditions,there ism inimalcooling and little power isrequired.Asthe m assflow increases,mo re power isrequired.Thisprovides excellentlow flow sensitivity and high turndown capabilities. Each instrum entisfactory calibratedand configured for the specificapplication.Ifnecessary,the TA2can be reconfigured inthe fieldfor differentconditions. Strengths and Cautions Direct m ass flow m easurem ent—d oes not require pressure or temp erature com pensation wh ich is required by other technologies. Thermatel offers excellent low flow sensitivity: gas velocities from 25 ft/m in (0.13 m/s) to over 50,000 ft/m in (255 m/ s). Thermatel products are easy to install and can be “hot tapped.” An alternative flow m eter technology should be considered where condensed m oisture is continuously present. Refer to Magnetrol bulletin 54-621 for further technical information on Thermal Dispersion Mass Flow .

In The Mag netrol Product Calibration Lab , Thermatel products are calibrated and tested to meet customer specifications. Calibrations traceable to NIST. General Description: The Mag netrol TA2 Thermal Dispersion Mass Flow Transmitter provides direct m ass flow m easurement of air and gases. The powerful micro - processor-based electronics provide an instrument that is easy to configure to the application, yet provides flexibility and ease of use. Advanced temperature compensation provides high performance over the entire operating range of the instrument. Installed cost of this instrument is very com petitive with other gas mass flow measurement technologies. Technology Features: Direct m ass flow me asureme nt in SCFM, SCFH, M MSCFD, N m 3/h, lb/hr, kg/hr E xcellent low flow sensitivity High turndown ratios E ase of installation Low pressure drop Applications: Typical applications include combustion air-flow measu rement, comp ressed air, natural gas flow, flare lines, digester/bio gas, and other process gas flow measu rement. L L L L L Mo del TA2 M ass Flow Transmitter M odel TA2 Ma ss Flow Transm itter M odel TA2 with Flow B ody THERMA TEL TA2 Thermal M ass Flow Transmitter Ma ss Flow Me asurement of Air and Gas

S P E C I F I C A T I O N S A P P R O V A L S THERMA TEL TA2 SAFETY INTEGRITY LEVEL Supply Voltage 11.6 to 30 VDC 100 to 264 VAC Pow er Consumption 7 VA typical Flow Range Max imum 10–50,000 SFPM (0.05–250 Nm/s) air reference to standard conditions Higher ranges and other gases available Accuracy Flow ±1% of reading +0.5% of calibrated full scale Accuracy Temperature ±2° F (1° C) Repeatability ±0.5% of reading Turn Down 100:1 typical (depending on calibrated flow range) Am bient Temperature -40° to +176° F (-40° to +80° C); display not readable below -22° F (-30° C) Process Temperature -50° to +400° F (-45° to +200° C) Pressure Rating 1500 psig (103 bar) maximum Analog Output Signal Active: 4–20 mA (isolated) maximum 1000 Ω loop resistance Passive: 4–20 mA (isolated) loop resistance dependent on power supply HART Optional Product Features: Accepts all typical input powers in sam e unit Second m A output for temperature output or second flow range optional P ulse output optional Integral or rem ote electronics Ro tatable housing to permit viewing the display from any position P re-calibrated and configured for the user’s application. Ready to install. Flow totalization Stainless steel and Hastelloy probes with wide selection of process connections All explosion proof housing with FM, FMc, and ATEX hazardous area approval Insertion probes and flow body designs Ability to replace probe/circuit boards in field On-site calibration verification procedure PACT wa re ™ for configuration, diagnostics, and trending SIL 1 w ith SFF value of 88.4% N IST traceable calibration Optional hot tap assem bly H AR T ® , AM S com m unication Ability to replace probe in field 4-button keypad for data entry Tw o gas calibrations available L L L L L L L L L L LL L L L L L L L L

Input Pow er TD1: 19.2 to 28.8 VDC TD2: 100 to 264 VAC, 50–60 Hz or 19.2 to 28.8 VDC Pow er Consumption TD1: 3.5 watts at 24 VDC, 4.5 watts at 30 VDC TD2: 4 watts at 24 VDC, 4.5 watts at 30 VDC, 5 watts at 100 to 264 VAC Pow er to Probe Less than 1 watt Electronics TD1: Integral TD2: Integral or remote Relay 8-amp DPDT — TD2 has optional hermetically sealed relay Set Point Range Water: 0.01 to 5 fps (0.003 to 1.5 m/s) Air: 0.1 to 500 sfps (0.3 to 150 nm/s) Process Temperature -100° to +850° F (-73° to +454° C) Process Pressure Probe dependent — to 6000 psig (414 bar) General Description: The TD1/TD2 Thermatel switch is extremely versatile providing flow /level/interface detection in a single unit. Both liquid and gas flow detection is obtainable. The TD1 is available with 24 VDC power with the TD2 available in either an AC or DC version. The TD2 also provides LED indication through an optional glass window, mA output for diagnostics or repeatable flow/level indication, optional hermetically sealed relay, time delay adjustment, and remote electronics. Continuous diagnostics on both units provides assurance that the switch is operating properly. Features: Continuous diagnostics Temp erature comp ensation N o moving parts N arrow hysteresis Opera ting temperatures to +850° F (+450° C) Integral or rem ote electronics 8-amp DP DT relay with optional hermetically sealed relay Low flow sensing capabilities P robes available in 316 stainless steel, Hastelloy ® C, and Monel ® Wi de selection of sensors – see page 10 N AC E construction available Hygienic design available Applications: Flow: P um p protection, relief valve monitoring, low flow/high flow indication, cooling air/water, exhaust flow, analyzer lines, lubrication systems Level: H igh level/low level/interface detection, high viscosity liquids, slurries, high pressure, high temperature, air/foam and foam/liquid detection, corrosive environm ents L LL L L L L L L L L L THERMA TEL TD1 & TD2 Switches Flow / Level / Interface Detection S P E C I F I C A T I O N S A P P R O V A L S

General Description: The Ma gnetrol TG1/TG2 switch is the industry’s only two-wire, intrinsically-safe therm al dispersion switch. The switch consists of a probe and preamplifier with remote DIN rail electronics. Barriers in the DIN rail enclosure provide a two-wire, intrinsically -safe circuit to the probe/preamplifier. Product Operation: The pream plifier converts the temperature difference to a pulse signal wh ich is super-imposed on the two wires providing power to the sensor. The DIN rail electronics provide operation control including set point adjustment, LED indication of flow/level, relay, fail-safe adjustment, and time delay. A non-linear m A output signal is available for diagnostics and repeatable flow/level indication. Features: DIN rail mounted electronics with built-in barrier provide a tw o-wire intrinsically-safe circuit to the probe/pream plifier Versatile switch for flow and level Set point adjustment at remote electronics Up to 1,650 feet (500 m eters) cable length LED indication provides mo nitoring of actual flow/level m A output signal will provide repeatable indication plus can be used for diagnostics Uses all Thermatel probes including low flow body and high-temp erature sensor Applications: Flow: Liquid or gas flow, pump protection, cooling air/water, relief valves, flow/no flow Level: H i/Low level, high viscosity media, high solids content, aeration/foaming, hygienic applications, interface detection, high-temperature applications L L L L L L L S P E C I F I C A T I O N S A P P R O V A L S Supply Voltage 24 VDC Relay 2-amp, SPDT relay Signal mA output, non-linear Fail-safe Switch selectable LED Indication

4 Green: Flow/Level is normal

1 Yellow: Flow/Level is near

1 Red: Alarm condition (TG1 only)

Sensor: -100° to +850° F (-70° to +450° C) Flow Range Insertion Probes Water: 0.01 – 5 fps (0.003 to 1.5 m/s) Air: 0.1 – 500 fps (150 m /s) THE RMA TEL TG1 Switch Two-W ire Intrinsically Safe Flow / Level / Interface Detection

THERM ATEL Sw itch Sensors Tw in-Tip Sensor Spherical-Tip Sensor High-Temp erature Sensor Low Flow Body Sensor G eneral U se: Gener al purpose and corrosive resistant applications Material O ptions: 316 stainless steel, Hastelloy C-276, or Monel Process Connections: NP T threads, G threads, ANSI flanges, EN/DIN flanges Max Temper ature: +400° F (+200° C) Max Pressure: 3,000 psig (207 bar) – 1850 psi (127 bar) extended length Insertion Lengths: 2 to 130 inches (50 to 3,300 mm) G eneral U se: Gener al purpose service and high-viscosity applications Material: 316 stainless steel Process Connections: NP T threads, G threads, ANSI flanges, EN/DIN flanges, hygienic Max Temper ature: +400° F (+200° C) Max Pressure: 600 psi (40 bar) Insertion Lengths: 2 to 130 inches (50 to 3,300 mm) G eneral U se: For high-temp erature process environments Material: 316 stainless steel; Hastelloy C-276 Process Connections: NP T threads, G threads, ANSI flanges, EN/DIN flanges Max Temper ature: +850° F (+454° C) Max Pressure: 6,000 psi (413 bar) Insertion Lengths: 2 to 36 inches (50 to 900 mm ) G eneral Use: Low flow detection; suitable for chemical feed pump s, additive flow, pum p seals, process analyzers Material: 316 stainless steel Flow Rate: 0.055 to 3 gallons/hour (0.02 to 11.5 liters/hr.) Process Connections: 1⁄4" and 1⁄2" NP T, and G threads Max Tem perature: +400° F (+200° C) Max Pressure: 5,800 psi (400 bar) Tw in-Tip Sensors are mounted at the end of each tip. Sp herical Sensors are bonded directly to the wall of the tip for greater sensitivity and sensor protection. P robe pressure and tem perature ratings are dependent upon process connection; m axim um pressure and tem perature ratings are shown below. Mini Sensor General U se: Probes specifically designed to fit into a 1⁄2", 3⁄4", or 1" Tee Material: 316 stainless steel Max Tem perature: +400° F (+200° C) Max Pressure: 3,000 psig (207 bar) – 1850 psi (127 bar) extended length Insertion Length: 1 to 130 inches (25 to 3300 mm)

THE RMA TEL RPA Hot Tap Assembly Allows probe installation or remov al without process shut-down Thermatel Hot Tap Assemb lies: Standard De sign (Left) and High Pressure D esign (Right). THE RMA TEL 052-7201 Switch Flow Switch for Nav al App lications General Description: The Thermatel “Navy Switch” is a special version of the Thermatel sw itch. It is used by the United States Navy for use on board Naval ships for flow detection in sprinkler systems. Features: L M eets MIL-S-901D: Grade A shock requirements L M eets MIL -STD-167-1: Vibration requirements L Unit comes with Tee for use with MIL-T-16420 CUNI tubing L 120 VAC power L 10 am p DPDT relay L Calibrated for sprinkler systems to detect flow of 10 GP M with 10 -second delay time General Description: Wh en used with Thermatel insertion probes, the Re tractable Probe Assem bly (RPA) perm its the probe to be installed or removed from the vessel or pipe while the process remains in operation. O nce installed, it is not necessary to drain or depressurize a tank or shut down the operation in order to install or remove a Thermatel instrument. Features: L Standard 316 stainless steel gland construction L Carbon steel or stainless steel process connections L Flange and ball valve available as an option L 11⁄2" N P T or flange connection L Teflon ® com pression rings Capabilities: L Temperatures to +400° F (+200° C) L Standard pressure to 50 psi (3.4 bar) (80 psi (5.5 bar) for TA2) L H igh-pressure design option to Class 300 pound service

COR POR ATE H EADQ UAR TER S

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Ph one: 630-96 9-4000 • Fax: 630-969-9489 ww w.m agnetrol.com • info@m agnetrol.com E UR OPE AN HEA DQUARTERS H eikensstraat 6 • 9240 Zele, Belgium Ph one: 052 45.11.11 • Fax: 052 45.09.93 BRAZIL: Av. Dr. Mauro Lindemberg Monteiro • 185-Jd. Santa Fé, Osasco • São Paulo CEP 06278-010 CANADA: 145 Jardin Drive, Units 1 & 2 • Concord, Ontario L4K 1X7 CHINA: Plant 6, No. 191, Huajin Road • Minhang District • Shanghai 201109 DEUTSCHLAND: Alte Ziegelei 2–4 • D-51491 Overath DUBAI: DAFZA Office 5AE 722, P .O. Box 293671 • Dubai, United Arab Emirates INDIA: C-20 Community Centre • Janakpuri, New Delhi 110 058 ITALIA: Via Arese, 12 • 20159 Milano SINGAPORE: 33 Ubi Avenue 3 • #05-10 Vertex • Singapore 408868 UNITED KINGDOM: Regent Business Centre • Jubilee Road • Burgess Hill, West Sussex RH15 9TL Ma gnetrol ® & Ma gnetrol logotype and Thermatel ® are registered tradema rks of M agnetrol International. Ha stelloy ® is a registered tradema rk of Ha ynes International, Inc. HA RT ® is a registered tradema rk of the HA RT Co mmuni cation Found ation Mo dbus ® is a registered tradema rk of G ould, Inc. M onel ® is a registered tradema rk of Special Metals Co rporation (Formerly Inco Alloys International) Copyright © 2011 Magnetrol International. All rights reserved. Printed in the USA. Bulletin: 54-100.4 • Effective: March 2011