quantity |
Measurable property of a substance or phenomenon |
---|---|
air-velocity |
Rate of air movement as distance over time |
apparent-energy |
Integral of |
apparent-power |
Apparent power is perceived magnitude of power due to the combination of active and reactive power |
cloudage |
Percentage of sky obscured by clouds |
concentration |
Abundance of substance in the total volume of a mixture |
airQuality |
Concentration of contaminants in the air |
ch2o-concentration |
Concentration of formaldehyde (CH₂O) in the air |
co-concentration |
Concentration of carbon monoxide (CO) in the air |
co2-concentration |
Concentration of carbon dioxide (CO₂) in the air |
nh3-concentration |
Concentration of ammonia (NH₃) in the air |
no2-concentration |
Concentration of nitrogen dioxide (NO₂) in the air |
o3-concentration |
Concentration of ozone (O₃) in the air |
pm01-concentration |
Concentration of particulate matter 0.1 in the air |
pm10-concentration |
Concentration of particulate matter 10 in the air |
pm25-concentration |
Concentration of particulate matter 2.5 in the air |
tvoc-concentration |
Concentration of total volatile organic compounds (TVOC) in the air |
current-angle |
AC current phase angle |
current-imbalance |
Current phase imbalance in a multiphase AC system |
current-thd |
Total harmonic current distortion |
daytime |
Time between sunrise and sunset |
dewPoint |
Dew point temperature at which water vapor will form dew |
direction |
Compass direction measured in degrees |
wind-direction |
Compass direction from which wind originates |
elec-current |
Electrical current |
current-magnitude |
Magnitude of electrical current |
elec-volt |
Electrical voltage, potential difference |
volt-magnitude |
Magnitude of electrical voltage |
emission |
Amount of a substance discharged into the air |
ch4-emission |
Greenhouse gas emission of methane (CH₄) into the air |
co2-emission |
Greenhouse gas emission of carbon dioxide (CO₂) into the air |
hfc-emission |
Greenhouse gas emission of hydrofluorocarbons into the air |
n2o-emission |
Greenhouse gas emission of nitrous oxide (N₂O) into the air |
nf3-emission |
Greenhouse gas emission of nitrogen trifluoride (NF₃) into the air |
pfc-emission |
Greenhouse gas emission of perfluorocarbons into the air |
sf6-emission |
Greenhouse gas emission of sulphur hexafluoride (SF₆) into the air |
energy |
Measure of ability to do work |
elec-energy |
Electrical energy consumed |
active-energy |
Integral of |
enthalpy |
Total heat content of a system |
feelsLike |
Apparent temperature perceived when considering humidity, wind chill, and heat index |
flow |
Measure of volumetric flow of fluid |
freq |
Occurrences per unit time |
ac-freq |
Frequency of alternating current |
humidity |
Percent relative humidity |
illuminance |
Luminous flux hitting the inside of the sphere at a specific point |
irradiance |
Energy received at a surface by area |
solar-irradiance |
Energy received on surface of the earth from the sun |
level |
Range from 0% to 100% |
light-level |
Sensed or controlled dimming level of electrical lighting |
luminance |
Energy of light in a given direction |
luminous-flux |
Total perceived light in all directions |
luminous-intensity |
Perceived light in a particular direction per unit solid angle |
pf |
Electrical power factor |
power |
Energy consumed per unit time |
elec-power |
Electrical energy consumed per unit time |
active-power |
Active power or real power |
elec-demand |
Active power averaged over a rolling interval |
precipitation |
Amount of atmospheric water vapor fallen including rain, sleet, snow, and hail |
pressure |
Measure of force applied |
atmospheric-pressure |
Barometric pressure exerted by the weight of the atmosphere |
reactive-energy |
Integral of |
reactive-power |
Reactive power or imaginary power |
speed |
Distance per unit time |
wind-speed |
Wind flow speed |
temp |
Temperature - measure of hot and cold |
air-temp |
Dry bulb temperature |
vfd-freq |
VFD frequency measured in "Hz" |
vfd-speed |
VFD speed measured in "%" |
visibility |
Distance at which light can be clearly discerned |
volt-angle |
AC voltage phase angle |
volt-imbalance |
AC voltage phase imbalance |
volume |
Three dimensional space occupied by a substance |
weatherCond |
Enumeration of weather conditions |
wetBulb |
Wet bulb air temperature |