TA2-A000-030

Thermatel® Enhanced Model TA2 Thermal Mass Flow Meter DESCRIPTION The Thermatel® Enhanced Model TA2 Thermal Mass Flow Meter provides reliable mass measurement for air and gas flow applications. The powerful, yet easy to use, electronics are contained in a compact explosion proof enclosure. The TA2 is available with both insertion probes as well as flow body design for smaller pipe sizes. The TA2 offers excellent performance at an exceptional value. TECHNOLOGY FEATURES • Direct mass flow measurement of air and gases • High turndown ratios • Excellent low flow sensitivity • Low pressure drop • NIST traceable calibrations SA F ET Y I NT EGRITY PROBE FEATURES • All 316 welded stainless steel and Hastelloy® C-276 construction • Selection of process connections, including threads, welded flange construction, and use with a compression fitting • Process temperatures up to +400° F (+200° C) • Pressure rating to 1500 psig (103 bar) dependent upon process connections • Probe can be field-replaced ELECTRONICS FEATURES • Compact explosion proof/NEMA 4X enclosure, mounted either integrally on the probe or at a remote location • Accepts all input power—11.6 to 30 VDC and 100 to 264 VAC • 4 –20 mA flow signal can be set for either active or passive operation • Optional pulse output plus second mA output which can be used for temperature or different flow range (mA output passive connection only) • HART communications with AMS and DTMs available • 2-line × 16-character backlit display with four pushbuttons for ease of configuration • Rotatable housing • Unique sensor design permits higher mass flow rates yet maintains equivalent thermal mass for varying temperature operation • Optional hot tap retractable probe assembly APPLICATIONS • Combustion air • Compressed air • Digester/Bio-gas • Vent lines/Flare headers • Hydrogen lines • Calibration for two different gases • Natural gas • Language selections of English, German, French, Spanish, and Russian • Aeration air V EL LE FLOW BODY FEATURES • 1⁄2" to 4" pipe sizes • NPT threads available up to 2" in size • Stainless steel and carbon steel (with stainless steel sensor) construction • Flange connections for all sizes • Optional stainless steel flow conditioning plate for 1.5" and higher • Flow conditioning for 1⁄2" to 1" based on upstream length and sensor design ADDITIONAL TOTALIZER FEATURES LOW VOLTAGE OPERATION The TA2 will accept input power as low as 11.6 VDC on Explosion Proof units when used with Integral Electronics. SELECTABLE STP CONDITIONS The TA2 directly measures mass flow of the gas referenced to Standard Temperature and Pressure (STP) conditions. Software permits the user to change STP conditions for their own requirements. AREA COMPENSATION FOR PIPE SIZE The TA2 automatically compensates the flow measurement based on actual area of the pipe. The user simply enters the size or the area of the new pipe, and the instrument automatically calculates the flow including factors for the probe blockage. HART COMMUNICATION Two 7-digit flow totalizers, one resettable and one non-resettable are provided. Flow units selectable in user’s choice of engineering units. Totalizer data is electronically stored eliminating the need for backup batteries and provides maximum safeguard data in the event of a power interruption. The totalizer can be reset using the display module, HART or via PACT ware ™. TEMPERATURE COMPENSATION Thermal flow technology measures the mass flow rate without the need for pressure and temperature correction as required with most gas flow instruments that measure the flow rate at actual conditions. However, changing temperature will change the properties of the gas which effect convective heat transfer. The Model TA2 measures the gas temperature and automatically adjusts the mass flow measurement for changes in gas properties over the entire temperature range of the instrument. DIAGNOSTICS Diagnostics is an important aspect of the TA2. The Enhanced TA2 has additional diagnostics to check the operation and performance of the unit. Diagnostics includes probe status, a test of RTD drift with automatic recalibration, and overall performance. In order to verify that the calibration and configuration match the original calibration conditions, the user can select a specific signal and compare the TA2 display value against the original calibration certificate. 2 Using HART/AMS communication, the user can configure the instrument from a remote location. HART provides the same functionality as the display module interface including all configuration and diagnostic information. AIR EQUIVALENCY Using historic air-gas calibration data, an air equivalency calibration can be performed on select gases. Consult Magnetrol® for details and flow ranges. ADDITIONAL PROBE FEATURES continued NAMUR COMPLIANCE INSTALLATION Probes can be provided with a variety of process connections, including threads, flanges, or installation through a compression fitting. The sensor will fit pipe sizes of 11⁄2" diameter or larger (2" minimum size with thread connection). The sensor is protected to prevent damage due to “bottoming-out” if inserted too far into a pipe. PULSE OUTPUT Model TA2 output signal meets NAMUR NE43 recommendations for the 4–20 mA signal levels. FACTORY CALIBRATION AND CONFIGURATION Each TA2 is calibrated at the factory for the type of gas and the specified flow rate. The instrument is configured for the specific application information. The result is an instrument which can be installed and immediately be placed into operation without field setup. CALIBRATION VERIFICATION MAGNETROL has developed a procedure to verify the calibration of the TA2 in the field. Following this procedure, the user can verify that the heat transfer characteristics of the instrument have not changed from first received. While the calibration is a permanent calibration, the user can now check the calibration without having to return the instrument to the manufacturer. When using a HART handheld or PACT ware ™, the user is guided through the procedure. ELECTRICAL WIRING The optional pulse output provides a pulse output equivalent to user selected units and multiplier factor. Both active (power from the TA2) or passive (external power supply) connections are provided to match the user’s interface. This output can optionally be used as an alarm to indicate that the flow rate is above or below the desired set point. PORTABLE MODULE DISPLAY A portable display module for configuration and diagnosis of multiple units is available (part number 089-5219-002). This portable module plugs into the electronics in the same manner as the normal display and uses the same software menu. This module permits the user to reduce installation cost by having one display module with keypad for multiple TA2 units. Usage of the display module requires that the housing cover be removed during use and thus may not be useable in hazardous areas. In these cases, the HART option should be utilized. Elevated terminal strips with very visible markings make wiring of the TA2 extremely easy. Portable Display Module 3 PACTware™ P C SOFTWARE The Most Efficient PC Configuration Tool for TA2 Mass Flow Meters PACTware is the modern, user-friendly adjustment software that enables quick configuration and diagnostics of your TA2 mass flow meters. With your PC connected through a serial interface to the HART loop, all functionality can be managed remotely anywhere on the loop. Parameters Screen Every Parameter in the TA2 can be reviewed and monitored remotely with a few clicks of the mouse. From units of measurement to pipe size, I/O Configuration or Calibration Factors, the parameters can be viewed or changed. Trending Screen Trending is available of the flow rate, temperature, and signal providing useful information on the operation of the TA2. This is especially important for troubleshooting and diagnostics if required. Parameters Screen Process Trend Screen APPLICATIONS COMPRESSED AIR/GASES Measurement of mass flow in different gas lines to determine compressor efficiency or in plant usage for internal allocation. Advantages: • direct mass flow • high turndown rates • flow totalization • easy installation BOILER Natural Gas COMBUSTION The TA2 measures the inlet air flow to the boiler. This signal is sent to the DCS where it is used to trim the natural gas flow. Advantages: • mass flow measurement • repeatable flow signal • high rangeability 4 APPLICATIONS NATURAL GAS FLOW The Model TA2 efficiently measures the flow and totalized flow of fuel to furnaces, heaters, or boilers. This data may be used for internal allocation or to report emission rates. Advantages: • direct mass flow in SCFM • built-in totalizer • ease in setup and operation Natural gas or propane Air FLARE LINES Measurement of flow in different sections of flare line. Advantages: • good low flow sensitivity • high turndown • easy removal if cleaning is required AERATION AIR FLOW Measurement and balance of the flow to each section of the aeration basin in waste water treatment plants. Advantages: • low installation cost • direct mass flow • high reliability DIGESTER GAS/BIO-GAS The off gas from a digester contains a mixture of methane and carbon dioxide saturated with moisture. This is a difficult flow measurement due to low flow rate and low pressures. Advantages: • excellent low flow sensitivity • high turndown rates • provides measurement of flow and totalized flow To engine or flare 5 TECHNOLOGY THERMATEL Model TA2 flow transmitter measures mass flow by detecting heat dissipation from a heated surface. The sensor contains two mass balanced elements with precision matched RTDs. The reference sensor measures the process temperature (up to +400° F [+200° C]); the second RTD measures the temperature of the heated sensor. The power to the heater is varied to maintain a constant temperature difference above the reference temperature. There is an inherent non-linear relationship between power and mass flow. The microprocessor in the TA2 compares the power against the calibration curve and converts the power requirements to the mass flow rate. Temperature is also measured to provide temperature compensation of the mass flow over the operating range of the instrument. For further information on thermal mass flow measurement, request a copy of the MAGNETROL “Thermal Dispersion Mass Flow Measurement Handbook,” Bulletin 54-621. AGENCY AGENCY APPROVALS PROTECTION METHOD APPROVED MODEL UNITED STATES TA2-AXXX-X3X TA2-AXXX-X4X with TXR-XXXX-XXX (probe) TFT-XXXX-000 (flow body) Explosion proof Class I, Div 1, Groups B, C, & D Class II, Div 1, Groups E, F, & G Class III, T6 Ta = 160° F, T5 Ta = 175° F NEMA 4X, IP 66 Class I, Div 2, Groups A, B, C, & D Class II, Div 2, Groups F & G Class III, T4 Ta = 160° F NEMA 4X, IP 66 AREA CLASSIFICATION Non-Incendive CANADA TA2-AXXX-X3X TA2-AXXX-X4X with TXR-XXXX-XXX (probe) TFT-XXXX-000 (flow body) Explosion proof Class I, Div 1, Groups B, C, & D Class II, Div 1, Groups E, F, & G Class III, T6 Ta = 160° F, T5 Ta = 175° F Type 4X Class I, Div 2, Groups A, B, C, & D Class II, Div 2, Groups E, F, & G Class III, T4 Ta = 160° F, T5 Ta = 175° F Type 4X II 2 G Ex d IIC T6, IP66 The TXR probe complies with Canadian Electric Code requirements of ANSI/ISA 12.27.01-2003 as a single seal device. Non Incendive: ATEX TA2-AXXX-X3X TA2-AXXX-X4X with TXR-XXX0-XXX (probe) TFT-XXXX-000 (flow body) TA2-AXXX-XEX TA2-AXXX-XFX with TXR-XXXX-XXX (probe) TFT-XXXX-000 (flow body) Explosion proof EN60079-0: 2007 EN60079-1: 2007 Ex d Explosion proof w/IS probe circuit EN60079-0: 2007 EN60079-1: 2007 EN60079-11: 2007 EN60079-26: 2006 II 1/2 G Ex d+ib d{ib} IIC T5/T4 IP66 Approval Pending ROS TECH/ GOST-R TA2-AXXX-X3X TA2-AXXX-X4X Russian Authorization Standards Consult MAGNETROL for Details Note: Maximum surface temperature of the probe is 4° C above process temperature. These units have been tested to EN 61326 and are in compliance with the EMC Directive 2004/106/EC. 6 SPECIFICATIONS PERFORMANCE Flow range maximum Accuracy flow Accuracy temperature Repeatability Linearity Turn down Calibration Span Response time Cable length SIL TRANSMITTER Display Keypad Menu Language Supply voltage Power consumption Signal Output Analog output signal Diagnostic Alarm HART Pulse Output Alarm Output Ambient temperature Temperature effect Humidity Housing Material Shock Vibration PROBE Materials Process connections Process Pressure Temperature rating FLOW Materials Process connections Pressure rating Temperature rating BODY 316/316L stainless steel all welded Carbon steel with stainless steel sensor NPT or 150-pound flange – Refer to model number 1500 psig @ +70° F (103 bar @ +20° C), 1100 psig @ +400° F (76 bar @ +200° C) -50° to +400° F (-45° to +200° C) Œ 316/316L stainless steel all welded Hastelloy® C-276 Refer to model number, hot tap optional 1500 psig @ +70° F (103 bar @ +20° C), 1375 psig @ +400° F (95 bar @ +200° C) -50° to +400° F (-45° to +200° C) Œ Two-line alphanumeric LCD, 16 characters per line Four push button English, French, German, Spanish, Russian 100 –264 VAC, 50–60 Hz 11.6 – 30 VDC (11.6 VDC requires integral electronics) DC = 6.8 watts, AC = 7 VA typical, 11.9 VA maximum 4–20 mA, HART available (3.8 to 20.5 mA useable —meets NAMUR NE 43) 4–20 mA (isolated) maximum 1000 Ω loop resistance 4–20 mA (isolated) loop resistance dependent on power supply, 11– 36 VDC 3.6 mA, 22 mA, HOLD Optional Active Connection — 24 VDC (±10%) Power, 150 mA Passive Connection — 2.5 to 60 VDC Power, 1.5 AMP Active Connection — 24 VDC (±10%) Power, 100 mA Passive Connection — 2.5 to 60 VDC Power, 1 AMP -40° to +176° F (-40° to +80° C); display not readable below -22° F (-30° C) Approximately ±0.04% of reading per ° C 99% Non-condensing Aluminum A356 (