LSI LASTEM M-Log – User’s manual
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6.2
Function library for derived calculations
M-Log has a useful library containing deriving quantities, featuring application functions dedicated
to both indoor (microclimate) and outdoor (meteorology) environmental sectors.
The list below shows all calculation functions available:
Arithmetical calculations
o
Addition-summation
o
Subtraction
o
Multiplication
o
Division
Statistical/mathematical operations
o
Integral
o
Mean
o
Power
o
Exponential
o
Natural logarithm and base 10
o
Square root
Mobile calculations
(programmable from 2 to 128 values)
o
Minimun, average, maximum
o
Totalization
o
Angular average (only for ELR515 and ELR516 models)
Thermo-hygrometric quantities (UNI EN ISO 7726, ISO/WD 7730, VDI 3786)
o
Relative humidity with psychrometric calculation (dry/humid bulb)
o
Absolute humidity
o
Specific humidity
o
Mixing factor (ratio)
o
Humid air enthalpy
o
Dew point temperature
o
Partial steam pressure
o
Humidity index (HI)
o
Discomfort of heat index
o
Indoor and outdoor WBGT index
o
Wind chill index
o
Chill temperature (TCH)
o
Mean radiant temperature
o
Radiant temperature asymmetry (only for ELO009 models)
o
Average planar radiant temperature (only for ELO009 model)
o
Planar temperature side 1 and side 2 (only for ELO009 models)
o
Percentage of dissatisfied people due to radiant temperature asymmetry from wall or
ceiling (only for ELO009 models)
o
Dissatisfied floor temperature (only for ELO009 models)
o
Dissatisfied vertical temperature from 10 to 110 cm (only for ELO009 models)
o
Draught rating (only for ELO009 models)
o
Operative temperature (only for ELO009 models)
