Thermal comfort is extremely important for our comfort and well-being. A heat meter, such as a heat meter, plays an important role. It is worth learning more about this device. Today we will present you high-quality models.
Check the heat meters at the Onninen wholesaler
How does a heat meter work?
A heat meter is a device that should be installed in every house, apartment or public building. It allows you to check the amount of heat that has been drawn on an ongoing basis. The price of electricity is undoubtedly not low. For this reason, such a device allows you to control your consumption on an ongoing basis and, if necessary, make savings. The way it works is very simple. It measures the supply and return temperature of the medium. On this basis, it calculates the difference. Then it measures the flow rate of the medium. It then calculates the amount of heat energy. The formula Q=m*Cv*(tz-tp) is used for measurements, where:
- Q is the amount of heat energy
- m is the mass flow of the agent
- Cv is the specific heat of water
- tz is the supply temperature
- tp is the return temperature.
The heat meter therefore measures the amount of energy that hot water releases, cooling down during heating . The volume of water that has flowed and released heat is measured. Two water temperatures are also measured, i.e. before cooling and after cooling. It is also worth remembering that the heat meter should be installed in accordance with the guidelines of the heat energy supplier. Access to it should therefore be free, so that measurement or service can be carried out. It must be protected from any impacts, vibrations or electromagnetic field effects that may disturb the measurements.
How to read a heat meter?
Each heat meter consists of two temperature sensors for the medium, i.e. supply and return. Another important element is the flow transducer, as well as the counting unit. Remember also that in compact heat meters this unit is connected to the transducer. Reading is very easy. You only need to visually check the amount of heat used, which is on the indicator.
Of course, you can also opt for remote reading. In this case, you should connect the heat meter to a remote reading system. Radio transmission is most often used. You can also use the walk-by method or read via the Internet. Many people wonder whether remote meter reading is completely safe. In this case, you don't have to worry, because even remote reading is not harmful in any way.
How to choose a heat meter?
When choosing a heat meter, you should pay attention to the technical parameters. You need to choose an efficient device that provides the most accurate measurement result. Of course, the selection of a heat meter depends on the type of installation. There are several categories of heat meters depending on the use of the flow transducer, which can be mechanical, ultrasonic or electromagnetic. In the case of an electromagnetic heat meter, the difference in electrical voltage between the electrodes is used for measurement.
In a heat meter, the mechanical transducer is a rotor, which is set in motion by the flowing water. The ultrasonic device is equipped with two heads. They measure the volume of the flowing water. It is generally accepted that the ultrasonic heat meter is more accurate. In order for the heat meter to calculate correctly, the ratio of the calculated flow rate Q to the nominal flow rate should be between 0.6 and 0.8. In addition, the accuracy of the measurement is influenced by the flow transducers, which are connected to the counting device. It is also necessary to pay attention to the generated pressure loss, which should be as low as possible.
Heat meters in the Onninen wholesale offer
At the Onninen installation wholesaler you will find heat meters of the highest quality.
You can choose the B Meters compact heat meter HYDROCAL M4 1/2'' QN-0.6 m3/h DN15 B Meters return radio . It is distinguished not only by its low price, but also by its high accuracy. It will work especially well in apartments or small houses. It is also worth paying attention to the compact design, which does not take up much space. This device is characterized by a low start-up threshold. It has full protection against magnetic field impact test.
Also worth noting is the Sensus Xylem Pollucom F DN15 Qn 0.6 L=110 mm G3/4 Sensus heat meter with return mounting. It is designed for residential installations with a flow rate of Q 0.6 m3/h, where the reading is made in a traditional way. It has two temperature sensors, which are located on the supply and return. For greater efficiency, it has an integrated data logger.
The compact heat meter Apator ELF 2,JS90-0,6-TI/z, G3/4,DN15 Qn=0,6m3/h, L=110mm 90/H,V will also be suitable for measuring the collected heat. It is also precise. It has a high-class heat meter with a flow transducer. It also provides archiving of measurement data.