Thermal comfort is extremely important for our comfort and well-being. a heat meter, such as a heat meter, plays an important role. It's worth learning more about this device. Today we will present you high-quality models.
Check out 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. Thanks to it, you can constantly check how much heat has been absorbed. Undoubtedly, the price of electricity is not low. For this reason, such a device allows you to monitor consumption on an ongoing basis and, if necessary, make savings. The method of operation is very simple. It measures the supply and return temperature of the medium. On this basis, it calculates the difference. Then it measures the volume flow of the flowing medium. It then calculates the amount of thermal energy. For measurements, the formula Q=m*Cv*(tz-tp) is used, where:
- Q is the amount of thermal energy
- m is the mass flow of the medium
- Cv is the specific heat of water
- tz is the supply temperature
- tp is the return temperature.
The heat meter measures the amount of energy released by hot water as it cools when heated . Therefore, the volume of water that flowed and released heat is measured. Two water temperatures are also measured, i.e. before and after cooling. It should also be remembered that the heat meter must be installed in accordance with the guidelines of the heat energy supplier. Therefore, access to it should be free, so that measurement or service can be carried out. It must be protected against any impacts, vibrations or electromagnetic fields that may disturb the measurements.
How to read a heat meter?
Each heat meter is composed of two medium temperature sensors, i.e. supply and return. Another important element is the flow transducer and the counting unit. Also remember that in compact heat meters this unit is connected to a transducer. Reading is very easy. You just need to visually check the amount of heat used, which is shown on the indicator.
Of course, you can also opt for remote reading. In this case, the heat meter should be connected to the remote reading system. Radio transmission is most often used. You can also use the walk-by method or read it 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 case.
How to choose a heat meter?
When choosing a heat meter, you should pay attention to the technical parameters. You need to choose an effective device that provides the most accurate measurement results. 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 may be mechanical, ultrasonic or electromagnetic. In the case of an electromagnetic heat meter, the measurement uses the difference in electric voltage that occurs between the electrodes.
In a mechanical heat meter, the transmitter is a rotor set in motion by flowing water. The ultrasonic device is equipped with two heads. They measure the volume of water flowing through. It is generally agreed that an ultrasonic heat meter is more accurate. For the heat meter to calculate correctly, the ratio of the calculation stream Q to the nominal flow rate should be in the range from 0.6 to 0.8. In addition, the measurement accuracy is influenced by flow transducers that are connected to the counting device. You also need to pay attention to the generated pressure loss, which should be as low as possible.
Heat meters available at the Onninen wholesaler
In the Onninen installation wholesaler you will find the highest quality heat meters.
You can choose the B Meters compact HYDROCAL M4 1/2'' QN-0.6 m3/h DN15 B Meters heat meter, radio return . It is distinguished not only by its low price, but also by its high work accuracy. It is especially suitable for apartments or small houses. It is also worth paying attention to the compact design, which does not take up much space. This device has a low starting threshold. It has full protection against magnetic field influence.
Also noteworthy is the Sensus Xylem Pollucom F DN15 Qn 0.6 L=110 mm G3/4 Sensus heat meter with return installation. It is intended for residential installations with a flow Q of 0.6 m3/h, where the reading is made in a traditional way. It has two temperature sensors located on the supply and return lines. For greater work efficiency, it has an integrated data recorder.
The compact heat meter Apator ELF 2,JS90-0.6-TI/z, G3/4,DN15 Qn=0.6m3/h, L=110mm 90/H,V is also suitable for measuring the absorbed heat. It is also precise. It has a high-class heat meter with a flow transmitter. It also ensures archiving of measurement data.