Purchase Advice on HVAC Meters
What exactly is HVAC? The specialist knows for certain: HLK describes the subject area of heating, ventilation and air-conditioning systems. Especially in the field of heating technology many physical variables can be measured. Whenever these systems have to be tested, maintained and monitored, the measuring instruments are used. The following text is a purchase advice and helps to find a suitable measuring device for the HVAC area.
A large area for measuring devices in the HVAC field is the measurement of temperature and humidity. These two parameters are decisive in order to check whether the heating and ventilation systems are still working correctly or whether the systems are set appropriately. The thermo-hygrometers from PCE Instruments are designed for quick and easy use in maintenance applications. Due to a simple operation of these HVAC measuring instruments, only a short training time is required. The HVAC hygrometers can be used both, for temporary measurement of temperature and humidity as well as for continuous monitoring. These HVAC meters often have an internal data logger that stores the measured values internally or on a memory card. The hygrometers can also directly perform many calculations, such as the dew point. The dew point is important to detect mold hazards. Hygrometers with data loggers are also suitable for determining the correct ventilation behavior.
It goes without saying that in the range of HVAC measuring instruments you can also find thermometers, that can directly measure a fluid temperature. These thermometers are available in different designs and with different measuring principles.
For measurement of temperatures on the heating pipes, it is recommended to mount a temperature sensor on the heating pipe to measure, for example, the flow and return temperature. For fast temperature measurements in boilers, radiators or floor heating systems, an infrared thermometer or even a thermal imaging camera is very well suited. These HVAC meters measure the surface temperature of all surfaces without contact and very quickly. To measure the water temperature of water heating equipment or other heaters, we recommend thermometers with an immersion sensor.
Below the thermometers or thermos-hygrometers are presented in accordance with their application area:
Room temperature / room climate - Thermo-hygrometer
Measurement of flow and temperature - Contact thermometer with differential measurement
Coninuous monitoring of temperatures on surfaces - Thermometer with data logger
Dew point measurement - Hygrometer with dew point calculation
Control of floor heating systems - Infrared thermometer / thermal imaging camera
Ventilation conrtol rooms - Hygrometer with data logger
nother area of HVAC measuring equipment is the monitoring of air flows. Anemometers are always used whenever ventilation systems are to be tested. Here, vane anemometers with corresponding funnel attachments are frequently used. The funnels are placed on the outlet of a ventilation or air-conditioning system and the correct volumetric flow is measured directly via an impeller. In the case that no reachable outlet is available for the measurement of the volumetric flow, a small hot wire anemometer can be used, which is placed directly into the duct. The advantage of a hot wire anemometer in HVAC area is that even very small wind speeds can be measured. Thus, this anemometer is not only suitable for checking ventilation systems, but also for checking the tightness of windows.
Frequently in the HVAC field there is also a task of looking into the components, ventilation systems in order to find a fault. However, there are usually no accesses or access is difficult to reach. For this application, in the products range of PCE Instruments, you may find special endoscopes, which complete the range of HVAC measuring instruments. Various cable lengths and designs allow looking inside in such areas, that otherwise would only be achievable with great effort. So, with the help of an HVAC endoscope, it is possible to look into the tubes for up to 30 m in order to control. By means of photo and video functions the damages can be additionally documented then. Frequently, for the control of the heating systems, an additional HVAC meter must be taken. A multimeter measures various electrical variables such as current, voltage and resistance. Especially when checking a heating system, it is often necessary and indispensable to use a multimeter. Does a relay switch properly? Does voltage come to the heater? Is a resistor defective? All this can be detected in the HVAC field with the help of a multimeter.
Air quality, temperature and humidity conditions in the offices, residential, and industrial buildings must meet certain sanitary standards. Keeping of these parameters in the given values should be done by ventilation, heating and air conditioning. When they work unsatisfactory or in case of redevelopment, reconstruction or modification of technological processes there should be carried out an adjustment for achieving the required sanitary standards.
Bad air quality, incorrect operation of ventilation system, high or low temperature or the presence of drafts influence the health and well-being of the people. it can also cause different breathing problems and diseases. With the help of an appropriate instrument you can measure air quality parameters and characteristics of the air and heat balance in the entire facility in order to improve, adjust and optimize the work of HVAC systems.
During the repair, maintenance and adjustment of heating, ventilation and air conditioning systems different parameters should be measured, such as temperature (including differential), pressure, power, capacity, resistance, voltage, dew point, air flow velocity, humidity, etc. For this purpose people usually use devices of various types. Our multifunctional HVAC meter is able to solve a variety of measurement tasks. It successfully replaces multiple traditional meters, thereby reducing the total time of performance and increasing efficiency. Versatility and multi-functionality of this device allow the use of one electronic unit with the probes of various types. In the process of making HVAC adjustments our multifunction HVAC meter can record the controlled quantities for further evaluation and comparison with the values that are defined by sanitary norms.
Unlike stationary measuring devices, such gauge performs measurements anywhere in the system, and therefore provides the most complete and objective information about the characteristics of the air and heat balance and air quality throughout the facility. It is characterized by the extended functionality. It can help you determine the parameters of indoor climate, as well as basic characteristics of air distribution and air exchange in the facility. All measurement results can be stored in memory and later transferred to a PC or other programs. Software and USB interface cable help you process, analyze and print data on the site. Internal data logger keeps the measurement results with the date and time in internal memory. When designing our multi-functional HVAC meter we have paid special attention to the maximum reliability and accuracy. Robust housing with IP protection class prevents accidental damages of the electronic unit. Our HVAC meter is compact, light, reliable, accurate, durable, easy and safe to use. With its help you can register all the necessary parameters of the microclimate in your residential room or office and make reports about the performed measurements with maximum comfort and in the shortest time. It is usually used in swimming pools, saunas, industrial ventilation systems and air ducts, offices and residential buildings and in other places where HVAC system control is required.
PCE Instruments provides extensive support of engineers, consultants, experts in the field of climate, experts in maintenance of ventilation and air-conditioning systems. Our qualified technicians will help you find the right HVAC meter with the functions that are needed for your work.