Heat Metering – Efficient Energy Measurement in Heating and Cooling Circuits
Our BTU meters measure the energy transferred in heating and cooling systems precisely, non-intrusively, and in compliance with standards. Clamp-on flow and temperature sensors provide transparent energy data – without interrupting the process, posing a risk of leaks, or requiring pipe modifications. This allows you to optimize consumption and operating costs while reliably meeting legal requirements.
Precise Measurement of Heat and Cold to Identify Energy-Saving Opportunities
Our heat metering systems combine precise flow measurement with accurate temperature detection, enabling reliable and non-invasive energy measurement in heating and cooling systems. Both stationary and portable devices provide standard-compliant and traceable energy values that help you identify savings potential, optimize energy consumption, and reduce costs—all without interrupting operations.
For heat and cooling flow measurement, two Pt 100 or Pt 1000 temperature sensors, along with a pair of transducers for flow measurement, are mounted on a suitable section of pipe. The temperature sensors are mounted at the inlet and outlet of the system, while the flow sensors measure the volumetric flow rate. The meter calculates energy consumption based on the measured flow rates and the temperature difference, taking into account the specific heat capacity of the medium.
System Solutions for Heat Metering
Three ultrasonic flow meters from our product portfolio can also be used for precise measurement of heat and cooling capacity: the stationary systems KATflow 100 and KATflow 150, as well as the portable measuring device KATflow 230.
The fixed-installation devices are designed for long-term use in HVAC (heating, ventilation, and air conditioning) applications and can be seamlessly integrated into existing building management systems. They are ideal for the continuous monitoring and optimization of energy flows.
The KATflow 230 is designed as a portable measurement system for mobile on-site measurements and supports targeted energy analyses as well as temporary consumption surveys.
All systems feature extensive interfaces and process outputs, including current outputs, open-collector outputs (e.g., for pulse or totalizer outputs), and digital relays. The stationary devices also offer optional fieldbus and communication solutions such as Modbus and up to ten additional interfaces for flexible integration into higher-level systems.
Overview of the Features of Heat and Cooling Meters
- Pipe diameters ranging from 10 mm to over 3,000 mm
- Temperature range for sensors from -30 °C to +250 °C
- Heat flux in W, kW, MW, and heat quantities in J, kJ, MJ
- Display of heat flux and temperature values on the graphic display
- Supports measurements of coolant and water-glycol mixtures
- Internal data logger for up to 100,000 measurements and software for data analysis
- Measuring instruments with various types of Pt 100 and Pt 1000 built-in temperature sensors
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