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On-Site Calibration of Heat Meters in District Heating Lines

On-Site Calibration of Heat Meters in District Heating Lines

A Measuring Method for during Normal Operation

Calibration of heat meters in district heating lines is typically labor-intensive and expensive. On top of that, it also interrupts normal operation. In cooperation with two companies specializing in laser-optic measurement technologies – ILA GmbH and Optolution GmbH – and in conjunction with the Physikalisch-Technische Bundesanstalt (PTB, German Federal Metrology Institute), we have developed a new process known as on-site calibration of flow meters. This process makes it possible to carry out high-precision measurements in pipes during operation, without having to remove and empty the system. Choose on-site calibration to establish peace of mind for billing. On all sides.

Benefits at a Glance

With TÜV Rheinland as your partner for on-site calibration of heat meters in district heating lines,
you can:

  • Avoid considerable financial loss resulting from erroneous calibrations under conditions only approximately comparable to real operating conditions
  • Save cost significantly through consumer-based billing, precise cost transparency, and reduced discrepancies
  • Significantly increase degree of agreement in heat measurement
  • Boost your image with fair invoices – and also strengthen your marketing power

Our Services

  • On-site calibration measurements using a method approved by the German Federal Metrology Institute (Physikalisch Technische Bundesanstalt, PTB)
  • Certification of flow sensor measurement deviation
  • Certification of measurement uncertainty by the PTB
  • Periodic replication measurements
  • Supplier-neutral proposals for measurement optimization

The Consequences of Measurement Errors

In Germany today, providers do not need to calibrate heat meters on a regular basis, if the heating output is more than 10 megawatts. The reason is that up until now the technical means have not been available to do this. Experts estimate that several hundred million Euros are wrongly billed in Germany each year due to measurement errors. These errors affect both energy suppliers and major customers, with both sides running the risk of losing up to six-figure sums.


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