Manualshelf

Instructions

ManualsBrandsEXTECH ManualsHumidity GaugesHygrometer Wärmeindex-Psychrometer 0 % RH 99 % RH
123456
5RH25‐en‐GB_v1.15/15
Appendices
AppendixA–HeatIndexbased onTemperature(
o
F)vs.RelativeHumidity(%)
Note:ItalicvaluesareHeatIndexbasedontheTemperature(leftcolumn)andRelativeHumidity(toprow).
o
F 90% 80% 70% 60% 50% 40%
80
o
F 85 84 82 81 80 79
85
o
F 101 96 92 90 86 84
90
o
F 121 113 105 99 94 90
95
o
F 133 122 113 105 98
100
o
F 142 129 118 109
105
o
F 148 133 121
110
o
F 135
AppendixB–HeatIndexbasedonTemperature(
o
F)vs.DewPoint(DP)
Note:ItalicvaluesareHeatIndexbasedontheTemperature(leftcolumn)andDewPoint(toprow).
o
F 55DP 60DP 65DP 70DP 75DP 80DP 85DP
80
o
F 55 60 65 83 84 87
85
o
F 80 80 81 89 93 99 107
90
o
F 84 86 95 100 107 117
95
o
F 91 101 106 114 125
100
o
F 113 121 131
105
o
F 127 138
110
o
F 134 145
AppendixC–HeatIndexandHealthEffects
HeatIndexof80to90
o
F:Fatiguepossiblewithprolongedexposureandphysicalactivity
HeatIndexof90to105
o
F:Sunstroke,heatcramps,andheatexhaustionpossible
HeatIndexof105to130
o
F:Sunstroke,heatcramps,heatexhaustionlikely;heatstrokepossible
HeatIndexof130
o
Forgreater:Heatstrokehighlylikelywithcontinuedexposure
The Heat Index is determined using the dry bulb temperature and the relative humidity. It is
basedonchartsavailablethroughtheU.S.NationalWeatherService.TheHeatIndexrepresents
howanaveragepersonfeelsrelativetoclimateconditions.For
agiventemperature,thehigher
thehumidity,thehighertheheatindexwillbe.