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Measuring principle
Thermal
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Product headline
Inline flowmeter with long-term stability and a compact, easily accessible transmitter.
Flexible, convenient programming based on 21 standard gases or freely definable gas mixtures thereof.
Measurement of utility and process gases as well as gas mixtures in small line sizes. -
Sensor features
High level of process control – premium measurement accuracy and repeatability. Reliable monitoring – detection of process disturbances and reverse flow. Easy maintenance – removable sensor.
Inline version with DN 15 to 100 (½ to 4″). Bidirectional measurement; high measuring performance. Patented drift-free sensor with SIL 2. -
Transmitter features
Full access to process and diagnostic information – numerous, freely combinable I/Os and fieldbuses. Reduced complexity and variety – freely configurable I/O functionality. Integrated verification – Heartbeat Technology.
Compact dual-compartment housing with up to 3 I/Os. Backlit display with touch control and WLAN access. Remote display available. -
Nominal diameter range
DN 15 to DN 100 (1/2″ to 4″)
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Wetted materials
Measuring tubes
DN 15 to 50 (½ to 2″): stainless cast steel, CF3M/1.4408
DN 65 to 100 (2½ to 4″): stainless steel, 1.4404 (316/316L)
Process connections
Flange connections
Stainless steel, 1.4404 (F316/F316L)
Threaded connections
Stainless steel, 1.4404 (316/316L)
Sensing element
Unidirectional
Stainless steel, 1.4404 (316/316L)
Alloy C22, 2.4602 (UNS N06022);
Bidirectional
Stainless steel, 1.4404 (316/316L)
Reverse flow detection
Stainless steel, 1.4404 (316/316L) -
Measured variables
Massflow, temperature, standard volume flow, volume flow, Free air delivery, velocity, heat flow, energy flow, density
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Max. measurement error
Gas: 1.0% o.r. (10 to 100% o.f.s.), 0.1% o.f.s. (1 to 10% o.f.s.)
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Measuring range
0.5 to 3750 kg/h (1.1 to 8250 lb/h)
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Max. process pressure
PN40 / Cl. 300 / 20K
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Medium temperature range
-40 °C to +180°C (-40 °F to +356 °F)
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Ambient temperature range
-40 to 60°C (-40 to 140°F)
Optional:
Transmitter: -50 to 60°C (-50 to 140°F),
Sensor: -60 to 60°C (-60 to 140°F) -
Transmitter housing material
Aluminium, AlSi10Mg, coated
Polycarbonate -
Degree of protection
IP66/67, Type 4X enclosure
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Display/Operation
4-line backlit display with touch control (operation from outside)
Configuration via local display and operating tools possible
Remote display available -
Outputs
3 outputs:
4-20 mA HART (active/passive)
4-20 mA (active/passive)
Pulse/frequency/switch output (active/passive)
Relay output -
Inputs
Status input
4-20 mA input -
Digital communication
HART, Modbus RS485
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Power supply
DC 24V
AC 100 to 240V -
Hazardous area approvals
ATEX, cCSAus, IECEx, NEPSI, JPN, UK Ex, EAC, KC
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Product safety
CE, C-tick
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Functional safety
Functional safety according to IEC 61508, applicable in safety-relevant applications in accordance with IEC 61511
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Metrological approvals and certificates
Calibration performed on accredited calibration facilities (acc. to ISO/IEC 17025)
Heartbeat Technology complies with the requirements for measurement traceability according to ISO 9001:2015 – Section 7.1.5.2 a -
Pressure approvals and certificates
PED, CRN
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Material certificates
3.1 material
NACE MR0175/MR0103
Field of application
The patented sensor design of t-mass F provides unprecedented measurement stability in thermal mass flow measurement. It compensates in real time for changes of process conditions: temperature, pressure, flow direction and gas type. Its compact transmitter offers high flexibility in terms of operation and system integration: access from one side, remote display and improved connectivity options. Heartbeat Technology enables measurement reliability and compliant verification.
Measuring principle is characterized by a high operable flow range and direct mass flow measurementMeasur