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Low fl ow sensitivity means high reliability

for fl are gasapplications.

DESCRIPTION The Thermatel® TA2 thermal dispersion mass fl ow meter provides reliable mass fl ow measurement for fl are gas applications to comply with moni-toring requirements. No additional pressure or temperature compensation is necessary to achieve a fl ow rate at standard or base conditions from a single transmitter.

UNIVERSALA single TA2 model series for all applications, features and approvals required. Universal approvals include cFMus, ATEX, IEC, EAC, INMETRO, KGS and CCOE. Accepts both AC and DC input power.

CALIBRATIONThe fl ow meter is factory calibrated and confi gured for the gas, fl ow rate and pipe size specifi ed. Advanced diagnostics, including a calibration ver-ifi cation procedure, are available through the display or HART® communi-cations. The calibration verifi cation procedure avoids costly manufacturer recalibrations, as well as extended downtimes. No special equipment is necessary.

FEATURES

• Measure at lowest fl ows and pressures in any line size• Simple and fast installation with insertion probe option• Flow, temperature, pulse and alarm outputs available• Hot tap options for removal under process conditions• English, French, German, Spanish and Russian menu languages• High turndown with auto switching capability:

The TA2 can hold two calibration curves and provide twocurrent outputs. When ordered with these options, the user can enable the auto switching feature so the transmitter automatically switches between calibration tables. Maximum resolution is provided as the current outputs are scaled for the individual curves and extended turndown is achieved. The more power changes with fl ow, the greater the sensitivity of the fl ow meter.

Thermatel® TA2 Thermal Dispersion Mass Flow Meter | Specifications

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PERFORMANCEFlow range maximum 10-54,000 SFPM (0.05–275 Nm/s) air reference to standard conditions Contact Magnetrol® for other gasesAccuracy fl ow ±1% of reading +0.5% of calibrated full scaleAccuracy temperature ±2˚ F (1˚ C)Repeatability ±0.5% of readingLinearity Included in fl ow accuracyTurn down 100:1 typical (depending on calibrated fl ow range)Calibration NIST traceableSpan Minimum 0–100 SFPMResponse time 1 to 3 second time constant typicalCable length 500 feet (150 m)SIL Safe Failure Fraction (SFF) 88%

TRANSMITTERDisplay Two-line alphanumeric LCD, 16 characters per lineKeypad Four push buttonMenu language English, French, German, Spanish, RussianSupply voltage 100–264 VAC, 50–60 Hz~ 15–30 VDC (lower VDC possible - Consult Factory)Power consumption DC = 9 W maximum, AC = 20 VA maximumSignal output 4–20 mA (active or passive), HART available (3.8 to 20.5 mA usable—meets NAMUR NE 43), Foundation™ fi eldbus availableAnalog output signal Active 4–20 mA (isolated) maximum 1000Ω loop resistance Passive 4–20 mA (isolated) loop resistance dependent on power supply, 11–36 VDCDiagnostic alarm 3.6 mA, 22 mA, HOLDPulse output Active Connection—24 VDC (±10%) Power, 150 mA Passive Connection—2.5 to 60 VDC Power, 1.5 AMPAlarm output Active Connection—24 VDC (±10%) Power, 100 mA Passive Connection—2.5 to 60 VDC Power, 1 AMPAmbient temperature -40˚ to +176˚ F (-40˚ to +80˚ C); display not readable below -22˚ F (-30˚ C)Temperature effect Approximately ±0.04% of reading per ˚ CHumidity 99% Non-condensingHousing material Aluminum A356 (<0.2% copper)Shock vibration ANSI/ISA-S71.03 table 2, level SA1 (Shock), ANSI/ISA-S71.03 table 1, level VC2 (Vibration)

PROBEMaterials 316/316L stainless steel all welded Hastelloy® C-276/C-22Process connections Refer to model number, hot tap optionalPressure rating 1500 psig @ +70˚ F (103 bar @ +20˚ C), 1375 psig @ +400˚ F (95 bar @ +200˚ C)Temperature rating -50˚ to +400˚ F (-45˚ to +200˚ C)1

FLOW BODYMaterials 316/316L stainless steel all welded Carbon steel with stainless steel sensorProcess connections NPT or 150-pound fl ange – Refer to model numberPressure rating 1500 psig @ +70˚ F (103 bar @ +20˚ C), 1100 psig @ +400˚ F (76 bar @ +200˚ C)Temperature rating -50˚ to +400˚ F (-45˚ to +200˚ C)1

1 For operating temperatures between +250˚ and +400˚ F (+120˚ and +200˚ C), either use remote electronics or a longer length insertion probe to provide an additional four inches (100 mm) between the electronics and the compression fi tting.

Bulletin: 54-244Effective: March 2015