Calibration of a thermotechnical test stand

Measurements for approvals are taken under highly constant thermal conditions using an especially designed test stand.

The TRICOR Coriolis Mass Flow Meter TCM 0325

The TRICOR Coriolis Mass Flow Meter TCM 0325 was integrated into the hot water circuit


The Thermotechnical Institute (WTI) of the Mannheim University of Applied Sciences is one of three centres of expertise in Germany appointed for the type approval and DIN testing of heating cost allocators (according to Section 5 of the Heating Costs Ordinance). Measurements for approvals are taken under highly constant thermal conditions using a specifically designed test stand. The specimens (heating cost allocators) are mounted on a radiator. Hot water is circulated through the radiator. The supply and return temperature, as well as the mass flow and volume flow of the hot water, have to be measured with high accuracy. A permanently installed external device is used for measuring the volume flow according to the Coriolis principle.


Medium Hot water
Temperature 68-194 °F (20-90 °C)
Pressure 1.5-15 psi (0.1-1 bar)
Measurement range 5-200 l/h


A TRICOR Coriolis Mass Flow Meter TCM 0325 for liquids and gases.


For accreditation as an internationally recognized test laboratory according to DIN EN 17025, the flow meter that is used has to be calibrated using a DAkkS calibrated measurement standard; a relatively low flow rate has to be measured as accurately as possible over a wide range of 5 to 200 litres per hour. Since the hot water contains suspended matter in the form of tiny lime and rust particles, the measuring device should not have any components that are moveable or susceptible to deposits. Furthermore, the flow meter that is used has to ensure the required accuracy across the entire measuring range for the medium being used, with calibration according to DAkkS standards. The applicable accuracy limit was less than 2 % of the measured value.


The TRICOR Coriolis Mass Flow Meter TCM 0325 was integrated into the hot water circuit and serves as a reference for the internal calibration of the existing, permanently installed flow meter. The TCM 0325 supports flexible and portable operation. It is calibrated at the prescribed regular intervals according to DAkkS standards in KEM’s own calibration laboratory certified according to DIN EN ISO/IEC 17025:2005.


  • Reliable, reproducible measurement results
  • Coverage of the entire calibration measurement range with just one measuring device
  • High measuring accuracy
  • Flexible and portable application
  • Calibration and certification to DAkkS ISO 17025 standard

Fuel and fuel additive test system uses Tricor for final testing of Formula 1 gasoline pumps

APPLICATION: Fuel and fuel additives test system for final testing of gasoline pumps at Parker Hannifin Manufacturing Germany GmbH & Co. KG in Mainz-Kastel. The pumps are used by Formula 1 racing teams. Every single gasoline pump is tested and qualified on the test system under completely different operating parameters before they are delivered to the racing customers.

CHALLENGE: A test system of high technical complexity was being designed and modelled for unlimited final testing of gasoline pumps for Formula 1 racing customers. To meet the very high demands for quality, the test must cover the entire performance spectrum and provide the optimum testing conditions for the final test. In the area of flow measurement, the task was to specify a highly accurate sensor for the most varied operating parameters. The flow conditions comprised a large spread in temperature and process pressure. This resulted in a change in the viscosity of the fuel. In the first design, turbine flow meters and TRICOR Coriolis mass flow meters were considered. The solution with turbine flow meters required a cascading of several devices to cover the required flow measurement range. Furthermore, different calibration curves needed to be used in order to meet the accuracy requirements.

TCM 0650-FA-HGSS-CSDS Tricor Coriolis for fuel measurement
TCM 0650-FA-HGSS-CSDS Tricor Coriolis for fuel measurement

SOLUTION: TRICOR Coriolis mass flow meters, by contrast, provide multiple technical advantages for this test bed. Flow meters using the Coriolis principle are significantly more accurate, faster and are almost completely independent from the medium properties like viscosity, temperature and pressure – in contrast to some other flow meters. The TCM 0650 covers the entire testing measurement range. With the TRICOR Coriolis solution, Parker Hannifin can cover the required temperature and process pressure range on the fuel test bed with one device. There are no restrictions in regards to fluid, viscosity or accuracy of measurement. Additional components for a cascading measurement (such as needed with the turbine flow meter option) and the associated added expense are eliminated.

CUSTOMER ADVANTAGE: All requirements are met by the broad measurement range of a single TCM 0650. It reduces not only the purchasing costs but also the costs for having replacement devices. Using analogue output signals and modbus TRU interfaces, mass flow, volume flow, temperature and medium density can be read out at the same time on the local display – remote optional. The TCM 0650 is the optimal solution for Parker Hannifin in order to master this challenging measuring task.

Chemical Manufacturing – Chlorine Gas – Coriolis application

APPLICATION: A bayonet-style heat exchanger is used by this customer to heat and vaporise dry liquid Chlorine, to supply multiple reactors at various flow rates with Chlorine gas, at 54°C (130°F) and 180 psig. Pure liquid Chlorine is fed to the vaporizer from a pressurized railcar. The heat source was low pressure steam. The existing system did not control the liquid level in the vaporizer nor the flow of the liquid Cl2, and the vapourizer’s liquid level was limited by equilibrium.

TRICOR PRODUCT SUPPLIED: TCM-28K Hastelloy Coriolis Mass Flow Meter with Integral Transmitter

Using Tricor Coriolis meter for the transfer of chlorine. Hastelloy selected.
Using Tricor Coriolis meter for the transfer of chlorine. Hastelloy selected.

CHALLENGE: Chlorine has a high coefficient of thermal expansion. Process upsets or momentary shutdowns sometimes resulted in excessive liquid levels, which rapidly led to undesired pressure excursions. There were also cases of low liquid levels, which led to super-heating of the gas. This problem was compounded by the over-sized tube bundle in the vaporiser.

SOLUTION: Since a very small amount of liquid CL2 can lead to serious swings in level, and therefore over-pressure excursions, a highly accurate and repeatable flow meter was required. The customer chose the TRICOR TCM-28K Hastelloy C-22 flow meter. The C-22 alloy features excellent corrosion resistance to Chlorine, and has proven to be superior to C276 for these applications.

RESULT: The new system uses re-circulating hot water as a heat source, rather than steam, and the CL2 liquid level is now controlled via a cascade master and a mass flow control loop.

Tricor coriolis meter selected in Hastelloy for Chlorine measurement
Tricor coriolis meter selected in Hastelloy for Chlorine measurement









see the full brochure:


Tricor Coriolis – available from Litre Meter

Petrochemical Processing – Oil Additive Blending – Tricor Coriolis

APPLICATION DESCRIPTION: This lubricant manufacturer now uses two TRICOR Coriolis meters: one measures the individual petrochemical products as they are offloaded into their tank farm, and the second is for batch control as they create products using components from various tanks. The Coriolis meter for batching is used with a Precision Digital Batch Controller and a pneumatic control valve for precise batching.

TRICOR PRODUCT SUPPLIED: TCM-65K Coriolis Mass Flow Meter with Integral Transmitter

CHALLENGE: This customer used multiple hydrocarbon components to create their products, and some components are measured using a manual weight scale. The display was hard to read and the weight scale was unreliable. Additionally, hydrocarbon components were not being measured upon delivery by the customer.

The Tricor Coriolis installed on the hydrocarbon line

SOLUTION: One 2-inch Coriolis flow meter was placed in the receiving pipeline for measurement of the individual components as they are off-loaded from delivery trucks to the individual storage tanks which provided accurate measurement and billing. Also, by using the batch controller, control valve and Coriolis meter for the batching process, the customer can now dial in the desired amount of individual components and then walk away. These flow meters were also integrated into a local display, a Precision Digital Consolidator which displays values of tank levels and flow rate.

Tricor Coriolis used for blending
Tricor Coriolis used for blending

RESULT: The new batching system is set to control the flow rate, totalize the flow, and shut off the flow when the setpoint is reached. The customer is pleased with the accuracy achieved.

Available from Litre Meter.

Dimethylformamide (DMF) measurement with Tricor


DMF (Dimethylformamide, N,N-Dimethylmethanamide, (CH3)2NC(O)H) is a clear liquid organic solvent used in a number of industrial processes, particularly in the manufacture of polyurethane products, pesticides, electrical equipment, pharmaceuticals, and synthetic leathers and fibres. The Tricor coriolis meter proved itself on this technically challenging application using standard equipment.


Tricor coriolis mass flowmeters used in the flow measurement of DMF
Tricor coriolis mass flowmeters used in the flow measurement of DMF


Medium: DMF

Pressure: >4 bar

Density: 995 kg/m3

Viscosity: 2 cSt

Flow range: up to 20,000 kg/h / 50,000 kg/h for loading and unloading

Flow range: up to 12,000 kg/h / 25,000 kg/h for product supply for a PU coating agent into the reactor.



TCM 028K Coriolis Mass Flow Meters (28,000 kg/hr max)

TCM 065K Coriolis Mass Flow Meters (65,000 kg/hr max)

TRICOR_Chemical_Manufact._DMF_EN_spotlight_160705_E002 Brochure

Tricor coriolis mass flowmeters used in the flow measurement of DMF
Call Now Button