Design by operating conditions

C

Ultra-high temperature

Design C is intended for operation under ultra-high process fluid temperatures — from −50 °C to +350 °C. Optimized for petrochemical processes, high-temperature reactors and heat treatment units. Remote (separate) design is mandatory — the electronics unit is mounted in a safe area.

Technical specifications Request a quote
Up to +350 °C Remote (separate) design High-temperature reactors Special materials
Overview

C — Ultra-high temperature

Design C is specifically engineered for processes where the process fluid temperature exceeds the capabilities of the standard design T (+150 °C). The use of specialized heat-resistant materials, thermal decoupling and mandatory remote electronics enables reliable operation at temperatures up to +350 °C.

−50…+350
°C temperature range
Remote
Electronics design
Heat-resistant
Materials and alloys

Recommended applications

Petrochemical reactors Pyrolysis units Catalytic cracking High-temperature synthesis Oil distillation (bottoms) Thermal waste processing Power & utilities (high-temperature heat transfer media) Production of polymers Bitumen and asphalt mixes Molten sulfur
Design

Design features of design C

Design C is based on standard Mass-EXPERT sensors, but with a number of design modifications that ensure reliable operation at ultra-high temperatures.

Ultra-high temperature up to +350 °C

Special heat-resistant materials of the measuring tubes and housing withstand extreme temperature loads.

Remote (separate) design

The electronics unit (transmitter) is mounted in a safe area and connected to the sensor by an extension cable.

Remote electronics

The transmitter can be installed up to 15 m from the sensor.

Technical specifications

Parameters of design C

Technical specifications of flow meters in the ultra-high temperature design C

Parameter Value
Design code C
Working medium temperature range from −50 to +350 °C
Maximum working pressure up to 10 MPa (standard); higher on request
Electronics unit design Remote only (separate)
Sensor–transmitter cable length 3 m (standard); up to 15 m
Measuring tube material Heat-resistant materials per the Mass-EXPERT material range (depending on the medium)
Sensor housing material Stainless steel, heat-resistant coating
Nominal diameter (DN) 1 to 250
Transmitters ME100, ME200, ME300
Output signals 4–20 mA (HART), RS-485 (Modbus RTU), CAN, pulse, frequency
Explosion protection Ex db ib IIC T6 Gb; Ex db ia IIC T6 Gb; Ex ia tb IIIC T80 °C Db
Size Max. pressure, MPa Note
001..C ≤ 10 Micro flow meter for high-temperature media
002..C ≤ 10 For low flow rates at high temperatures
003..C ≤ 10 Base size for petrochemicals
004..C ≤ 10 A universal solution for reactors
008..C ≤ 10 For pyrolysis and cracking units
015..C ≤ 10 High-temperature liquids and gases
025..C ≤ 10 Process pipelines
050..C ≤ 10 Large high-temperature flows
100..C ≤ 10 Trunk high-temperature lines
250..C ≤ 10 Maximum size for high temperatures
Remote (separate) design

Remote (separate) design of sensor and electronics

Schematic diagram and installation features of flow meters in design C

Sensor
In the high-temperature zone

Installed directly on a high-temperature pipeline or reactor. Contains no electronic components — only measuring coils and temperature sensors.

Extension cable
3 m (standard); up to 15 m

Shielded cable. Transmits excitation and measurement signals without loss of accuracy.

Transmitter (electronics)
In the safe area

Installed in an area with permissible temperature. Performs signal processing and output signal generation. Can be mounted in a cabinet or on a DIN rail.

The remote (separate) design allows Mass-EXPERT Coriolis flow meters to be used in processes with a process medium temperature of up to +350 °C, keeping the electronics in comfortable conditions and extending their service life.

Materials

Materials used

To ensure reliable operation at ultra-high temperatures, design C uses special heat-resistant and corrosion-resistant materials.

Component Material Temperature limit
Measuring tubes 316L, high-Ni 316L, 904L, titanium, C4 steel, Hastelloy, duplex, tantalum — selected according to the medium up to +350 °C
Flanges / connections Stainless steel AISI 316L / 321 up to +400 °C
Applications

Where it is used

Chemicals
Thermal power & utilities
Polymer production
Oil & gas

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