Fluke 975 AirMeter ™ Multi functional environmental measuring instrument for basic IAQ/HVAC measurements

UtilizeFluke 975 AirMeter ™ Multi functional environmental measuring instrument for basic IAQ/HVAC measurements

Fluke 975 AirMeter ™ Multi functional environmental measuring instrumentCollect ten basic IAQ parameters: temperature, relative humidity, dew point temperature, wet bulb temperature, carbon dioxide, carbon monoxide, wind speed, air volume, and percentage of external air (calculated based on temperature or CO2). This application article mainly discusses the above parameters and the related functions of 975. For more detailed information, please refer to other application articles in the Fluke HVAC/IAQ digital database.

Basic knowledge of temperature and humidity
Temperature and humidity are fundamental indicators of indoor air quality (IAQ). We rely on HVAC equipment to maintain acceptable temperature, humidity, and ventilation levels, ensuring the health and comfort of residents, especially now that we also need to help regulate the health of buildings.

The relationship between HVAC equipment, living space requirements, building materials, climate conditions, and pressure differentials is a constantly changing process. We expect HVAC equipment to maintain 68 ° F to 70 ° F at 30% relative humidity in winter and 74 ° F to 76 ° F at 40% to 60% relative humidity in summer.

The difficulty of achieving the above objectives depends on many parameters, including geographical location, selection of HVAC equipment, and operational standards
Architectural design. Temperature control and ventilation are the primary considerations in dry climates, while in humid climates, issues related to core humidity need to be taken into account.

Under any climatic conditions, indoor conditions must be maintained at a level that can prevent or mitigate the proliferation and aggregation of dust mites, viruses, molds, spores, and other microorganisms. 40% to 45% relative humidity is recognized as an ideal indoor condition for maintaining human comfort, structural and material integrity, and preventing microbial growth.

Fluke 975 AirMeter ™ How to measure with a multifunctional environmental measuring instrument
Fluke 975 AirMeter ™ Measuring instrumentAfter completing the power on self-test, the main screen displays dry bulb temperature (° F or ° C), relative humidity (% RH), CO ppm (parts per million), and CO2 ppm simultaneously. The soft key * can be used to switch between relative humidity (% RH), wet bulb temperature (WBT), or dew point temperature (DPT). When the "MIN MAX" button is pressed, the measuring instrument will record the maximum, minimum, and average of all available readings.
*The function of the 'soft key' varies with the content displayed on the measuring instrument screen.