{"id":8555,"date":"2023-09-28T20:41:21","date_gmt":"2023-09-28T20:41:21","guid":{"rendered":"https:\/\/gasquip.com\/?page_id=8555"},"modified":"2024-12-13T14:25:22","modified_gmt":"2024-12-13T14:25:22","slug":"%e0%a4%a8%e0%a4%ae%e0%a5%80-%e0%a4%95%e0%a5%87-%e0%a4%b2%e0%a4%bf%e0%a4%8f-%e0%a4%93%e0%a4%b8-%e0%a4%ac%e0%a4%bf%e0%a4%82%e0%a4%a6%e0%a5%81-%e0%a4%95%e0%a5%88%e0%a4%b2%e0%a4%95%e0%a5%81%e0%a4%b2","status":"publish","type":"page","link":"https:\/\/gasquip.com\/hi\/dew-point-calculator-for-moisture\/","title":{"rendered":"\u0928\u092e\u0940 \u0915\u0947 \u0932\u093f\u090f \u0913\u0938 \u092c\u093f\u0902\u0926\u0941 \u0915\u0948\u0932\u0915\u0941\u0932\u0947\u091f\u0930"},"content":{"rendered":"\t\t
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Dewpoint Calculator for Moisture<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Equation Courtesy of Alpha Moisture Systems<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Steps:<\/b><\/p>\n

1. Dew Point or Absolute Values:<\/b> Begin by entering data into the dew point fields or any of the four absolute value sections. Ensure the correct unit of measurement is chosen.<\/p>\n

2. Advanced Calculations:<\/b> For results pertaining to ‘dew point at line pressure’ or ‘ppm(w)’, it’s mandatory to provide details on ‘Line Pressure’ and ‘Gas Type’. This allows for precise adjustments to the calculations, accounting for real-world conditions where line pressure can influence dew point.<\/p>\n

3. Supported Gases:<\/b> The calculator is optimized for seven commonly used gases in the industry. For gases not included in this list, the user can manually input the molecular weight to ensure accurate conversions.<\/p>\n

4. Line Pressure Units:<\/b> For diverse applications, line pressure units can be toggled among bara, barg, psia, psig, KPa, and MPa, providing flexibility and precision.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\r\n\r\n\r\n\r\n \r\n \r\n \r\n Document<\/title>\r\n <style type=\"text\/css\">\r\n .div-table {\r\n display: table;\r\n width: auto;\r\n padding: 15px;\r\n background-color: #dbdbdb;\r\n\r\n border-spacing: 5px;\r\n \/* cellspacing:poor IE support for this *\/\r\n }\r\n\r\n .calculate {\r\n display: flex;\r\n flex-wrap: wrap;\r\n }\r\n\r\n .calculate p {\r\n margin: 6px;\r\n }\r\n\r\n .calculate .cal-item {\r\n width: 25%;\r\n }\r\n\r\n .calculate input[type=text],\r\n input[type=url],\r\n textarea {\r\n line-height: 18px !important;\r\n color: #555;\r\n background-color: #f1f1f1;\r\n border: none;\r\n transition: all .2s ease;\r\n padding: 10px;\r\n font-size: 14px;\r\n }\r\n\r\n .calculate select {\r\n padding: 10px;\r\n width: 100%;\r\n border: none;\r\n color: #555;\r\n background-color: #fff;\r\n box-shadow: 0 1px 2px rgba(0, 0, 0, .16);\r\n transition: all .2s linear;\r\n }\r\n\r\n .div-table input[type=\"reset\"] {\r\n background-color: #333;\r\n padding: 7px 11px;\r\n border: none;\r\n color: #fff;\r\n cursor: pointer;\r\n transition: all .45s cubic-bezier(.25, 1, .33, 1);\r\n width: auto;\r\n font-family: 'Open Sans';\r\n font-weight: 600;\r\n font-size: 14px;\r\n border-radius: 6px;\r\n }\r\n .div-table input[type=\"button\"] {\r\n background-color: #0d60b2;\r\n padding: 7px 11px;\r\n border: none;\r\n color: #fff;\r\n cursor: pointer;\r\n transition: all .45s cubic-bezier(.25, 1, .33, 1);\r\n width: auto;\r\n font-family: 'Open Sans';\r\n font-weight: 600;\r\n font-size: 14px;\r\n border-radius: 6px;\r\n }\r\n\r\n .div-table-row {\r\n display: table-row;\r\n width: auto;\r\n clear: both;\r\n }\r\n\r\n .div-table-col {\r\n float: left;\r\n \/* fix for buggy browsers *\/\r\n display: table-column;\r\n width: auto;\r\n padding-right: 10px;\r\n }\r\n\r\n \r\n .col-select select{\r\n width: 85px;\r\n }\r\n\r\n\r\n\r\n @media screen and (max-width: 998px) {\r\n .calculate .cal-item {\r\n width: 50%;\r\n }\r\n }\r\n\r\n @media screen and (max-width: 768px) {\r\n .calculate .cal-item {\r\n width: 100%;\r\n }\r\n }\r\n <\/style>\r\n\r\n\r\n <script language=\"JavaScript\">\r\n\r\n\r\n \/\/************************************\r\n \/\/ DEWPOINT \/ HUMIDITY CALCULATOR\r\n \/\/ GasQuip 2023\r\n \/\/************************************\r\n\r\n\r\n \/\/***************************\r\n \/\/ GLOBALS ******************\r\n\r\n var PressureUnit = \"bara\"\r\n var Pascals = 0\r\n\r\n \/\/***************************\r\n\r\n\r\n \/\/***************************\r\n \/\/ CHANGE UNIT OF PRESSURE\r\n \/\/***************************\r\n function PUnitChange(currentValue, currentUnit, changeUnitTo) {\r\n\r\n \/\/CONVERT TO PASCALS \r\n Pascals = ToPascals(currentUnit, currentValue)\r\n\r\n \/\/CONVERT TO NEW UNIT \r\n return (FromPascals(changeUnitTo, Pascals))\r\n\r\n }\r\n\r\n\r\n \/\/***************************\r\n \/\/ CONVERT FROM PASCALS \r\n \/\/***************************\r\n function FromPascals(toUnit, pValue) {\r\n pValue = parseFloat(pValue)\r\n\r\n if (toUnit == \"bara\") { newValue = pValue \/ 101325 }\r\n if (toUnit == \"barg\") { newValue = (pValue \/ 101325) - 1 }\r\n if (toUnit == \"psia\") { newValue = (pValue \/ 101325) * 14.7 }\r\n if (toUnit == \"psig\") { newValue = (pValue * 14.7 \/ 101325) - 14.7 }\r\n if (toUnit == \"KPa\") { newValue = pValue \/ 1000 }\r\n if (toUnit == \"MPa\") { newValue = pValue \/ 1000000 }\r\n\r\n return (newValue)\r\n }\r\n\r\n\r\n \/\/***************************\r\n \/\/ CONVERT TO PASCALS \r\n \/\/***************************\r\n function ToPascals(currentUnit, currentValue) {\r\n currentValue = parseFloat(currentValue)\r\n\r\n if (currentUnit == \"bara\") { Pascals = currentValue * 101325 }\r\n if (currentUnit == \"barg\") { Pascals = (currentValue + 1) * 101325 }\r\n if (currentUnit == \"psia\") { Pascals = (currentValue \/ 14.7) * 101325 }\r\n if (currentUnit == \"psig\") { Pascals = ((currentValue + 14.7) \/ 14.7) * 101325 }\r\n if (currentUnit == \"KPa\") { Pascals = currentValue * 1000 }\r\n if (currentUnit == \"MPa\") { Pascals = currentValue * 1000000 }\r\n\r\n return (Pascals)\r\n }\r\n\r\n \/\/******************************\r\n \/\/ CHANGE OF UNIT \r\n \/\/******************************\r\n function UnitChange(formItem, formChange) {\r\n\r\n currentValue = formChange.value\r\n changeUnitTo = formItem.options[formItem.selectedIndex].value\r\n\r\n if ((changeUnitTo == \"degC\") || (changeUnitTo == \"degF\")) {\r\n AlertString = \"Temperature field\"\r\n }\r\n else {\r\n AlertString = \"Pressure field\"\r\n }\r\n\r\n if (typeof ValueCheck(currentValue, AlertString) != \"string\") {\r\n\r\n if ((changeUnitTo != \"degC\") && (changeUnitTo != \"degF\")) {\r\n currentUnit = PressureUnit\r\n newValue = PUnitChange(currentValue, currentUnit, changeUnitTo)\r\n }\r\n else {\r\n newValue = DegFar(currentValue, changeUnitTo)\r\n\r\n }\r\n formChange.value = newValue\r\n\r\n \/\/\/\/\/\/\/\/\/\/\/\/\/\/ UPDATE PRESSURE UNITS \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\r\n }\r\n if ((changeUnitTo != \"degC\") && (changeUnitTo != \"degF\")) {\r\n PressureUnit = changeUnitTo\r\n }\r\n }\r\n\r\n\r\n \/\/******************************\r\n \/\/ CONVERT DEGREES TO FAHRENHEIT \r\n \/\/******************************\r\n function DegFar(CurrentValue, ChangeTo) {\r\n if (ChangeTo == \"degF\") {\r\n return ((9 \/ 5) * parseFloat(CurrentValue) + 32)\r\n }\r\n else {\r\n return ((parseFloat(CurrentValue) - 32) * 5 \/ 9)\r\n }\r\n }\r\n\r\n \/\/************************\r\n \/\/ CHECK FOR NUMERIC ENTRY \r\n \/\/************************\r\n function ValueCheck(CheckItem, ShowAlert) {\r\n\r\n ReturnString = \"\"\r\n CheckLength = CheckItem.length\r\n CheckAgainst = \"0123456789.-+\"\r\n\r\n if (CheckLength < 1 && ShowAlert != \"NONE\") {\r\n alert(ShowAlert + \" contains an invalid value.\")\r\n }\r\n\r\n for (var i = 0; i != CheckLength; i++) {\r\n aChar = CheckItem.substring(i, i + 1)\r\n if (CheckAgainst.indexOf(aChar) < 0) {\r\n if (ShowAlert != \"NONE\") {\r\n alert(ShowAlert + \" contains an invalid value.\")\r\n }\r\n return (\"INVALID\")\r\n }\r\n else {\r\n ReturnString = ReturnString + aChar\r\n }\r\n if (ReturnString.length == CheckLength) { return (parseFloat(ReturnString)) }\r\n }\r\n return (\"INVALID\")\r\n }\r\n\r\n\r\n \/\/************************\r\n \/\/ Change of gas type \r\n \/\/************************\r\n function GasChange(form) {\r\n AtomicValue = form.Gas.options[form.Gas.selectedIndex].value\r\n if (AtomicValue != \"X\") {\r\n form.AtomicMass.value = AtomicValue\r\n }\r\n else {\r\n form.AtomicMass.value = \"\"\r\n form.AtomicMass.focus()\r\n }\r\n }\r\n\r\n \/\/--------------------------------------------\r\n \/\/DECIMAL FUNCTION\r\n \/\/--------------------------------------------\r\n function decimal(value, NumDP) {\r\n\r\n if (NumDP == 0) { Numerator = 1 }\r\n if (NumDP == 1) { Numerator = 10 }\r\n if (NumDP == 2) { Numerator = 100 }\r\n\r\n\r\n if (NumDP == 3) { Numerator = 1000 }\r\n\r\n var WGdc = \".\"\r\n var M = Math.round(value * Numerator)\r\n\r\n if (NumDP == 0) { var S = M }\r\n if (NumDP == 1) { var S = (((M < 1000) & (M > 0)) ? \"0\" : \"\") + M; }\r\n if (NumDP == 2) { var S = (((M < 100) & (M > 0)) ? \"00\" : (((M < 1000) & (M > 0)) ? \"0\" : \"\")) + M; }\r\n if (NumDP == 3) { var S = (((M < 10) & (M > 0)) ? \"000\" : (((M < 100) & (M > 0)) ? \"00\" : ((M < 1000) & (M > 0)) ? \"0\" : \"\")) + M; }\r\n\r\n S = S + \"\"\r\n\r\n realvalue = ((S.substring(0, (S.length - NumDP))) + WGdc + S.substring((S.length - NumDP), S.length));\r\n\r\n \/\/REMOVE ANY PADDING ADDED \r\n if (realvalue.length > 1) {\r\n while (realvalue.charAt(realvalue.length - 1) == \"0\") {\r\n realvalue = realvalue.substring(0, realvalue.length - 1)\r\n }\r\n if (realvalue.charAt(realvalue.length - 1) == \".\") {\r\n realvalue = realvalue.substring(0, realvalue.length - 1)\r\n }\r\n while ((realvalue.charAt(0) == \"0\") & (realvalue.charAt(1) != \".\")) {\r\n realvalue = realvalue.substring(1, realvalue.length)\r\n }\r\n }\r\n\r\n if (realvalue.length == 0) { realvalue = 0 }\r\n return (realvalue);\r\n }\r\n\r\n\r\n\r\n \/\/************************\r\n \/\/ FIND FIELDS FOR INPUT VALUES\r\n \/\/************************\r\n function FindInput(form) {\r\n confirmAction = true; i = 0; VALUE = \"XX\"; area = \"XX\"\r\n\r\n if (form.a.value != \"\") { i++; area = \"AREA1\"; VALUE = \"A\" }\r\n if (form.b.value != \"\") { i++; area = \"AREA2\"; VALUE = \"B\" }\r\n if (form.c.value != \"\") { i++; area = \"AREA3\"; VALUE = \"C\" }\r\n if (form.d.value != \"\") { i++; area = \"AREA3\"; VALUE = \"D\" }\r\n if (form.e.value != \"\") { i++; area = \"AREA3\"; VALUE = \"E\" }\r\n if (form.f.value != \"\") { i++; area = \"AREA3\"; VALUE = \"F\" }\r\n\r\n if (i != 1) {\r\n alert(\"Please fill in just one of either the Dewpoint Values or the Absolute Values \\r\\r Please press 'Reset' for a new calculation.\")\r\n }\r\n else {\r\n\r\n \/\/mickey convert part1\r\n var vAentered = \"\"\r\n var vBentered = \"\"\r\n var vAentered = form.a.value;\r\n var vBentered = form.b.value;\r\n if (vAentered == \"\" && form.TempUnitA.selectedIndex == 1) {\r\n form.TempUnitA.selectedIndex = 0;\r\n }\r\n if (vBentered == \"\" && form.TempUnitB.selectedIndex == 1) {\r\n form.TempUnitB.selectedIndex = 0;\r\n }\r\n\r\n if (form.P1.value == \"\") { form.P1.value = 1 }\r\n if (typeof ValueCheck(form.P1.value, \"Line Pressure\") == \"string\") { area = \"XX\" }\r\n if (typeof ValueCheck(form.AtomicMass.value, \"Molecular Weight\") == \"string\") { area = \"XX\" }\r\n\r\n GasValue = form.Gas.options[form.Gas.selectedIndex].value\r\n if (typeof ValueCheck(GasValue, \"NONE\") == \"string\") {\r\n GasType = \"a gas of a known molecular wieght of \" + form.AtomicMass.value;\r\n }\r\n else {\r\n if (GasValue == 29) { GasType = \"air\" }\r\n if (GasValue == 28) { GasType = \"nitrogen\" }\r\n if (GasValue == 40) { GasType = \"argon\" }\r\n if (GasValue == 146) { GasType = \"SF6\" }\r\n if (GasValue == 32) { GasType = \"oxygen\" }\r\n if (GasValue == 2) { GasType = \"hydrogen\" }\r\n if (GasValue == 44) { GasType = \"CO2\" }\r\n }\r\n\r\n if ((VALUE == \"B\") & (area != \"XX\")) {\r\n pUnit = form.UnitOfP.options[form.UnitOfP.selectedIndex].value\r\n tUnit = form.TempUnitB.options[form.TempUnitB.selectedIndex].value\r\n if (tUnit == \"degC\") { Temp = \"\u00baC\" } else { Temp = \"\u00baF\" }\r\n confirmAction = confirm(\"Please confirm Pressure Dewpoint calculation: \\r\\r\" + form.b.value + Temp + \" at \" + form.P1.value + \" \" + pUnit)\r\n }\r\n if ((VALUE == \"D\") & (area != \"XX\")) {\r\n confirmAction = confirm(\"Please confirm Absolute Values calculation: \\r\\r\" + form.d.value + \" parts per million by weight, in \" + GasType)\r\n }\r\n\r\n\r\n if (form.P1.value != \"\") {\r\n pUnit = form.UnitOfP.options[form.UnitOfP.selectedIndex].value\r\n if (pUnit == \"bara\") {\r\n if ((form.P1.value >= 0.01) & (form.P1.value < 1)) { form.P1.value = decimal(form.P1.value, 2) }\r\n if ((form.P1.value >= 1) & (form.P1.value <= 401)) { form.P1.value = decimal(form.P1.value, 1) }\r\n if ((form.P1.value < 0.01) || (form.P1.value > 401)) { area = \"XX\"; alert(\"Line pressure (bara) out of range. \\r\\rInput required between limits of: \\r\\r0.01 to 401\") }\r\n }\r\n if (pUnit == \"barg\") {\r\n if ((form.P1.value >= -0.99) & (form.P1.value < 1)) { form.P1.value = decimal(form.P1.value, 2) }\r\n if ((form.P1.value >= 1) & (form.P1.value <= 400)) { form.P1.value = decimal(form.P1.value, 1) }\r\n if ((form.P1.value < -0.99) || (form.P1.value > 400)) { area = \"XX\"; alert(\"Line pressure (barg) out of range. \\r\\rInput required between limits of: \\r\\r-0.99 to 400\") }\r\n }\r\n if (pUnit == \"psia\") {\r\n if ((form.P1.value >= 0) & (form.P1.value < 100)) { form.P1.value = decimal(form.P1.value, 1) }\r\n if ((form.P1.value >= 100) & (form.P1.value <= 6015)) { form.P1.value = decimal(form.P1.value, 0) }\r\n if ((form.P1.value < 0) || (form.P1.value > 6015)) { area = \"XX\"; alert(\"Line pressure (psia) out of range. \\r\\rInput required between limits of: \\r\\r0 to 6015\") }\r\n }\r\n if (pUnit == \"psig\") {\r\n if ((form.P1.value >= -14.7) & (form.P1.value < 100)) { form.P1.value = decimal(form.P1.value, 1) }\r\n if ((form.P1.value >= 100) & (form.P1.value <= 6000)) { form.P1.value = decimal(form.P1.value, 0) }\r\n if ((form.P1.value < -14.7) || (form.P1.value > 6000)) { area = \"XX\"; alert(\"Line pressure (psig) out of range. \\r\\rInput required between limits of: \\r\\r-14.7 to 6000\") }\r\n }\r\n if (pUnit == \"KPa\") {\r\n if ((form.P1.value >= 0.1) & (form.P1.value < 1)) { form.P1.value = decimal(form.P1.value, 1) }\r\n if ((form.P1.value >= 1) & (form.P1.value <= 40000)) { form.P1.value = decimal(form.P1.value, 0) }\r\n if ((form.P1.value < 0.1) || (form.P1.value > 40000)) { area = \"XX\"; alert(\"Line pressure (KPa) out of range. \\r\\rInput required between limits of: \\r\\r0.1 to 40000\") }\r\n }\r\n if (pUnit == \"MPa\") {\r\n if ((form.P1.value >= 0.1) & (form.P1.value < 1)) { form.P1.value = decimal(form.P1.value, 1) }\r\n if ((form.P1.value >= 1) & (form.P1.value <= 40)) { form.P1.value = decimal(form.P1.value, 0) }\r\n if ((form.P1.value < 0.1) || (form.P1.value > 40)) { area = \"XX\"; alert(\"Line pressure (MPa) out of range. \\r\\rInput required between limits of: \\r\\r0.1 to 40\") }\r\n }\r\n }\r\n\r\n tUnitA = form.TempUnitA.options[form.TempUnitA.selectedIndex].value\r\n if (tUnitA == \"degF\") {\r\n tA = DegFar(form.a.value, \"degC\")\r\n } else {\r\n tA = form.a.value\r\n }\r\n tUnitB = form.TempUnitB.options[form.TempUnitB.selectedIndex].value\r\n if (tUnitB == \"degF\") {\r\n tB = DegFar(form.b.value, \"degC\")\r\n } else {\r\n tB = form.b.value\r\n }\r\n\r\n if (VALUE == \"A\") { if ((tA < -112) || (tA > 20)) { area = \"XX\"; alert(\"Temperature out of range.\\r\\rInput required between limits of: \\r\\r-112 to 20 degrees Celsius \\r\\r-170 to 68 degrees Fahrenheit\") } }\r\n if (VALUE == \"B\") { if ((tB < -112) || (tB > 20)) { area = \"XX\"; alert(\"Temperature out of range.\\r\\rInput required between limits of: \\r\\r-112 to 20 degrees Celsius \\r\\r-170 to 68 degrees Fahrenheit\") } }\r\n if (VALUE == \"C\") { if ((form.c.value < 0.001) || (form.c.value > 23000)) { area = \"XX\"; alert(\"Parts per million by volume out of range.\\r\\rInput required between limits of: \\r\\r0.001 to 23000\") } }\r\n if (VALUE == \"D\") { if ((form.d.value < 0.001) || (form.d.value > 23000)) { area = \"XX\"; alert(\"Parts per million by weight out of range.\\r\\rInput required between limits of: \\r\\r0.001 to 23000\") } }\r\n if (VALUE == \"E\") { if ((form.e.value < 0.001) || (form.e.value > 17.6)) { area = \"XX\"; alert(\"Absolute humidity (g\/m\u00b3) out of range.\\r\\rInput required between limits of: \\r\\r0.001 to 17.6\") } }\r\n if (VALUE == \"F\") { if ((form.f.value < 0.001) || (form.f.value > 1096)) { area = \"XX\"; alert(\"Absolute humidity (lb\/MMSCF) out of range.\\r\\rInput required between limits of: \\r\\r0.001 to 1096\") } }\r\n\r\n if (confirmAction == true) { Calc(form, area) }\r\n }\r\n\r\n\r\n \/\/mickey convert back \r\n if (tUnitA == \"degF\" || tUnitB == \"degF\") {\r\n form.a.value = decimal(DegFar(form.aa.value, \"degF\"), 1)\r\n form.TempUnitA.selectedIndex = 1;\r\n form.b.value = decimal(DegFar(form.bb.value, \"degF\"), 1)\r\n form.TempUnitB.selectedIndex = 1;\r\n }\r\n\r\n }\r\n\r\n \/\/************************\r\n \/\/ PUT RESULTS INTO TABLE\r\n \/\/************************\r\n function IAmDone(form, a, b, c, d, e, f) {\r\n\r\n \/\/alert(a+\"\\r\"+b+\"\\r\"+c+\"\\r\"+d+\"\\r\"+e+\"\\r\"+f)\r\n\r\n form.a.value = decimal(a, 1)\r\n form.aa.value = decimal(a, 3)\r\n \/\/if((a>-112)&(a<20)){form.a.value=decimal(a,1)}\r\n \/\/else{if(a<-112){form.a.value=\"<112\"}if(a>20){form.a.value=\">20\"}}\r\n form.TempUnitA.selectedIndex = 0\r\n\r\n form.b.value = decimal(b, 1)\r\n form.bb.value = decimal(b, 3)\r\n \/\/if((b>-112)&(b<20)){form.b.value=decimal(b,1)}\r\n \/\/else{if(b<-112){form.b.value=\"<112\"}if(b>20){form.b.value=\">20\"}}\r\n form.TempUnitB.selectedIndex = 0\r\n\r\n if ((c >= 0.001) & (c < 0.01)) { form.c.value = decimal(c, 3) }\r\n if ((c >= 0.01) & (c < 1)) { form.c.value = decimal(c, 2) }\r\n if ((c >= 1) & (c < 10)) { form.c.value = decimal(c, 1) }\r\n if ((c >= 10) & (c <= 23000)) { form.c.value = decimal(c, 0) }\r\n if (c < 0.001) { form.c.value = \"<0.001\" }\r\n if (c > 23000) { form.c.value = \">23000\" }\r\n\r\n if ((d >= 0.001) & (d < 0.01)) { form.d.value = decimal(d, 3) }\r\n if ((d >= 0.01) & (d < 1)) { form.d.value = decimal(d, 2) }\r\n if ((d >= 1) & (d < 10)) { form.d.value = decimal(d, 1) }\r\n if ((d >= 10) & (d <= 23000)) { form.d.value = decimal(d, 0) }\r\n if (d < 0.001) { form.d.value = \"<0.001\" }\r\n if (d > 23000) { form.d.value = \">23000\" }\r\n\r\n if ((e >= 0.001) & (e < 0.01)) { form.e.value = decimal(e, 3) }\r\n if ((e >= 0.01) & (e < 0.1)) { form.e.value = decimal(e, 2) }\r\n if ((e >= 0.1) & (e <= 17.6)) { form.e.value = decimal(e, 1) }\r\n if (e < 0.001) { form.e.value = \"<0.001\" }\r\n if (e > 17.6) { form.e.value = \">17.6\" }\r\n\r\n if ((f >= 0.001) & (f < 0.01)) { form.f.value = decimal(f, 3) }\r\n if ((f >= 0.01) & (f < 0.1)) { form.f.value = decimal(f, 2) }\r\n if ((f >= 0.1) & (f < 100)) { form.f.value = decimal(f, 1) }\r\n if ((f >= 100) & (f < 1096)) { form.f.value = decimal(f, 0) }\r\n if (f < 0.001) { form.f.value = \"<0.001\" }\r\n if (f > 1096) { form.f.value = \">1096\" }\r\n\r\n }\r\n\r\n\r\n \/\/************************\r\n \/\/ DO THE CALCULATIONS\r\n \/\/************************\r\n function Calc(form, area) {\r\n\r\n \/\/ AREA1 ********************************\r\n if (area == \"AREA1\") {\r\n\r\n pUnit = form.UnitOfP.options[form.UnitOfP.selectedIndex].value\r\n tUnit = form.TempUnitA.options[form.TempUnitA.selectedIndex].value\r\n pValue = ValueCheck(form.P1.value, \"NONE\")\r\n tValue = ValueCheck(form.a.value, \"Atmospheric Dewpoint Temperature\")\r\n\r\n if (typeof tValue != \"string\") {\r\n\r\n if (tUnit == \"degF\") {\r\n tValue = DegFar(tValue, \"degC\")\r\n }\r\n\r\n\r\n if (tValue > 0) {\r\n vp2 = Math.exp(Math.log(611.2) + (17.62 * tValue) \/ (243.12 + tValue))\r\n }\r\n else {\r\n vp2 = Math.exp(Math.log(611.2) + 22.46 * tValue \/ (272.62 + tValue))\r\n }\r\n\r\n if (typeof pValue == \"string\") {\r\n Pascals = 101325\r\n form.P1.value = 1\r\n form.UnitOfP.selectedIndex = 0\r\n }\r\n else {\r\n Pascals = ToPascals(pUnit, pValue)\r\n }\r\n\r\n vp = vp2 * Pascals \/ 101325\r\n\r\n if (vp > 611.2) {\r\n b = (243.12 * Math.log(vp \/ 611.2)) \/ (17.62 - Math.log(vp \/ 611.2))\r\n }\r\n else {\r\n b = (272.62 * Math.log(vp \/ 611.2)) \/ (22.46 - Math.log(vp \/ 611.2))\r\n }\r\n\r\n c = (1000000 * vp2) \/ 101325\r\n\r\n if (form.Gas.options[form.Gas.selectedIndex].value == \"X\") {\r\n GasValue = ValueCheck(form.AtomicMass.value, \"Molecular Weight\")\r\n if (typeof GasValue == \"string\") {\r\n GasValue = 29\r\n form.AtomicMass.value = 29\r\n form.Gas.selectedIndex = 0\r\n }\r\n }\r\n else {\r\n GasValue = form.Gas.options[form.Gas.selectedIndex].value\r\n }\r\n\r\n \/\/d=(c*GasValue)\/18\r\n d = c * (18 \/ GasValue)\r\n e = (18.02 * vp2) \/ 2400.344\r\n f = e * 62.4219\r\n\r\n a = tValue\r\n\r\n IAmDone(form, a, b, c, d, e, f)\r\n }\r\n }\r\n\r\n\r\n\r\n \/\/ AREA2 ********************************\r\n if (area == \"AREA2\") {\r\n\r\n pUnit = form.UnitOfP.options[form.UnitOfP.selectedIndex].value\r\n tUnit = form.TempUnitB.options[form.TempUnitB.selectedIndex].value\r\n pValue = ValueCheck(form.P1.value, \"NONE\")\r\n tValue = ValueCheck(form.b.value, \"Pressure Dewpoint Temperature\")\r\n\r\n if (typeof tValue != \"string\") {\r\n\r\n if (tUnit == \"degF\") {\r\n tValue = DegFar(tValue, \"degC\")\r\n }\r\n\r\n if (tValue > 0) {\r\n vp2 = Math.exp(Math.log(611.2) + (17.62 * tValue) \/ (243.12 + tValue))\r\n }\r\n else {\r\n vp2 = Math.exp(Math.log(611.2) + 22.46 * tValue \/ (272.62 + tValue))\r\n }\r\n\r\n if (typeof pValue == \"string\") {\r\n Pascals = 101325\r\n form.P1.value = 1\r\n form.UnitOfP.selectedIndex = 0\r\n }\r\n else {\r\n Pascals = ToPascals(pUnit, pValue)\r\n }\r\n\r\n vp = vp2 * 101325 \/ Pascals\r\n\r\n if (vp > 611.2) {\r\n a = (243.12 * Math.log(vp \/ 611.2)) \/ (17.62 - Math.log(vp \/ 611.2))\r\n }\r\n else {\r\n a = (272.62 * Math.log(vp \/ 611.2)) \/ (22.46 - Math.log(vp \/ 611.2))\r\n }\r\n\r\n c = (1000000 * vp) \/ 101325\r\n if (form.Gas.options[form.Gas.selectedIndex].value == \"X\") {\r\n GasValue = ValueCheck(form.AtomicMass.value, \"Molecular Weight\")\r\n if (typeof GasValue == \"string\") {\r\n GasValue = 29\r\n form.AtomicMass.value = 29\r\n form.Gas.selectedIndex = 0\r\n }\r\n }\r\n else {\r\n GasValue = form.Gas.options[form.Gas.selectedIndex].value\r\n }\r\n \/\/d=(c*GasValue)\/18\r\n d = c * (18 \/ GasValue)\r\n e = (18.02 * vp) \/ 2400.344\r\n f = e * 62.4219\r\n\r\n b = tValue\r\n\r\n IAmDone(form, a, b, c, d, e, f)\r\n }\r\n }\r\n\r\n\r\n \/\/ AREA3 ********************************\r\n if (area == \"AREA3\") {\r\n\r\n c = \"X\"; d = \"X\"; e = \"X\"; f = \"X\"\r\n vp = 0\r\n\r\n pUnit = form.UnitOfP.options[form.UnitOfP.selectedIndex].value\r\n pValue = ValueCheck(form.P1.value, \"NONE\")\r\n if (form.Gas.options[form.Gas.selectedIndex].value == \"X\") {\r\n GasValue = ValueCheck(form.AtomicMass.value, \"Molecular Weight\")\r\n if (typeof GasValue == \"string\") {\r\n GasValue = 29\r\n form.AtomicMass.value = 29\r\n form.Gas.selectedIndex = 0\r\n }\r\n }\r\n else {\r\n GasValue = form.Gas.options[form.Gas.selectedIndex].value\r\n }\r\n\r\n if (form.c.value.length == \"\" && form.d.value.length == \"\" && form.e.value.length == \"\" && form.f.value.length == \"\") {\r\n alert(\"Please enter a value into one of the four humidity fields\")\r\n }\r\n\r\n if (form.c.value.length > 0) { c = ValueCheck(form.c.value, \"Parts per million volume (v)\") }\r\n if (form.d.value.length > 0) { d = ValueCheck(form.d.value, \"Parts per million mass (w)\") }\r\n if (form.e.value.length > 0) { e = ValueCheck(form.e.value, \"Absolute humidity (g\/m\u00b3)\") }\r\n if (form.f.value.length > 0) { f = ValueCheck(form.f.value, \"Absolute humidity (lb\/MMSCF)\") }\r\n\r\n \/\/typeof Value==\"string\"\r\n if (typeof c != \"string\") { vp = (c * 101325) \/ 1000000 }\r\n if (typeof d != \"string\") { c = (d * GasValue) \/ 18; vp = (c * 101325) \/ 1000000 }\r\n if (typeof e != \"string\") { vp = (e * 2400.344) \/ 18.02 }\r\n if (typeof f != \"string\") { vp = ((f \/ 62.4219) * 2400.344) \/ 18.02 }\r\n\r\n\r\n if (vp != 0) {\r\n\r\n c = (1000000 * vp) \/ 101325\r\n \/\/d=(c*18)\/GasValue\r\n d = c * (18 \/ GasValue)\r\n e = (18.02 * vp) \/ 2400.344\r\n f = e * 62.4219\r\n\r\n if (vp > 611.2) {\r\n a = (243.12 * Math.log(vp \/ 611.2)) \/ (17.62 - Math.log(vp \/ 611.2))\r\n }\r\n else {\r\n a = (272.62 * Math.log(vp \/ 611.2)) \/ (22.46 - Math.log(vp \/ 611.2))\r\n }\r\n\r\n if (typeof pValue == \"string\") {\r\n Pascals = 101325\r\n form.P1.value = 1\r\n form.UnitOfP.selectedIndex = 0\r\n }\r\n else {\r\n Pascals = ToPascals(pUnit, pValue)\r\n }\r\n\r\n vp2 = vp * Pascals \/ 101325\r\n\r\n if (vp2 > 611.2) {\r\n b = (243.12 * Math.log(vp2 \/ 611.2)) \/ (17.62 - Math.log(vp2 \/ 611.2))\r\n }\r\n else {\r\n b = (272.62 * Math.log(vp2 \/ 611.2)) \/ (22.46 - Math.log(vp2 \/ 611.2))\r\n }\r\n\r\n form.TempUnitA.selectedIndex = 0\r\n form.TempUnitB.selectedIndex = 0\r\n\r\n IAmDone(form, a, b, c, d, e, f)\r\n\r\n }\r\n }\r\n AtomicValue = form.Gas.options[form.Gas.selectedIndex].value\r\n if (AtomicValue != \"X\") {\r\n form.AtomicMass.value = AtomicValue\r\n }\r\n }\r\n\r\n\r\n \/\/************************\r\n \/\/ SHOW INSTRUCTIONS \r\n \/\/************************\r\n function Instructions() {\r\n InstructString = \"INSTRUCTIONS \\r\\rPlease enter a number in either one of the two dewpoint values, selecting appropriate units, or one of the four absolute values before pressing the calculate button. 'Line Pressure' and 'Gas Type' are only required as inputs if the 'dewpoint at line pressure' of 'ppm(w)' are to be used\/calculated.\"\r\n InstructString = InstructString + \"\\r\\rPLEASE NOTE: Whilst every effort has been made by Alpha Moisture Systems, to ensure that the calculations derived by the moisture calculator are correct, it assumes no responsibility for any errors. In no event shall Alpha Moisture Systems be liable for any damages whatsoever, arising from or relating to information conatined in this site.\"\r\n alert(InstructString)\r\n }\r\n\r\n \/\/*********************************************************\r\n \/\/ end hiding -->\r\n <\/SCRIPT>\r\n\r\n<\/head>\r\n\r\n<body data-rsssl=1>\r\n <form name=\"Equivalents\">\r\n <div class=\"div-table\">\r\n <div class=\"col-md-12\">\r\n\r\n <div class=\"calculate\">\r\n <div class=\"col-md-3 cal-item\"> <!-- Section 1 Starts -->\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <h4>Dewpoint Values<\/h4>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">Dewpoint at\r\n Atmospheric Pressure:<\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col col-input\">\r\n <p style=\"font-size:13px;\">\r\n <input name=\"a\" type=\"text\" maxlength=\"10\" size=\"10\" \/>\r\n <input type=\"hidden\" name=\"aa\" \/>\r\n <input type=\"hidden\" name=\"bb\" \/>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col col-select\">\r\n <p style=\"font-size:13px;\">\r\n <select name=\"TempUnitA\">\r\n <option value=\"degC\">\u00baC <\/option>\r\n <option value=\"degF\">\u00baF <\/option>\r\n <\/select>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <\/div> <!-- Section 1 Ends -->\r\n <div class=\"col-md-3 cal-item\"> <!-- Section 2 Starts -->\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <h4>Optional Inputs<\/h4>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">Line pressure:\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col col-input\">\r\n <p style=\"font-size:13px;\">\r\n <input name=\"P1\" type=\"text\" maxlength=\"10\" size=\"10\" \/>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col col-select\">\r\n <p style=\"font-size:13px; float:left;\">\r\n <select name=\"UnitOfP\">\r\n <option value=\"bara\">bara <\/option>\r\n <option value=\"barg\">barg <\/option>\r\n <option value=\"psia\">psia <\/option>\r\n <option value=\"psig\">psig <\/option>\r\n <option value=\"KPa\">KPa <\/option>\r\n <option value=\"MPa\">MPa <\/option>\r\n <\/select>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px; float:left;\">Gas\r\n Type:<\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px; line-height: 15px;\">\r\n Input a gas of known molecular weight or\r\n select blank from the dropdown menu to\r\n input a custom value<\/p>\r\n <\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">\r\n\r\n <select name=\"Gas\" onchange=\"GasChange(Equivalents)\">\r\n <option value=\"29\">air <\/option>\r\n <option value=\"28\">nitrogen\r\n <\/option>\r\n <option value=\"40\">argon <\/option>\r\n <option value=\"146\">\r\n <p style=\"font-size:13px;\">\r\n SF<sup>6<\/sup><\/p>\r\n <\/option>\r\n <option value=\"32\">oxygen <\/option>\r\n <option value=\"2\">hydrogen <\/option>\r\n <option value=\"44\">\r\n <p style=\"font-size:13px;\">\r\n CO<sub>2<\/sub><\/p>\r\n <\/option>\r\n <option value=\"X\">Gas of known\r\n molecular weight<\/option>\r\n <\/select>\r\n <\/p>\r\n <\/div>\r\n\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">\r\n <input name=\"AtomicMass\" type=\"text\" maxlength=\"3\" size=\"6\" value=\"29\" \/>\r\n <\/p>\r\n <\/div>\r\n <\/div>\r\n <\/div> <!-- Section 2 Ends -->\r\n <div class=\"col-md-3 cal-item\"> <!-- Section 3 Starts -->\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <h4>Absolute Values<\/h4>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px; \">Parts per\r\n million by volume:<\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">\r\n <input name=\"c\" type=\"text\" maxlength=\"10\" size=\"10\" \/>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">ppm(v)<\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">Parts per million\r\n by weight:<\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">\r\n <input name=\"d\" type=\"text\" maxlength=\"10\" size=\"10\" \/>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">ppm(w)<\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">Absolute\r\n humidity:<\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">\r\n <input name=\"e\" type=\"text\" maxlength=\"10\" size=\"10\" \/>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">g\/m<sup>3<\/sup>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">\r\n <input name=\"f\" type=\"text\" maxlength=\"10\" size=\"10\" \/>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">lb\/MMSCF <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <\/div> <!-- Section 3 Ends -->\r\n <div class=\"col-md-3 cal-item\"> <!-- Section 4 Starts -->\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <h4>Pressure Dewpoint<\/h4>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px\" ;>Dewpoint at Line\r\n Pressure:<\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col col-input\">\r\n <p style=\"font-size:13px;\">\r\n <input name=\"b\" type=\"text\" maxlength=\"10\" size=\"10\" \/>\r\n\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col col-select\">\r\n <p style=\"font-size:13px;\">\r\n <select name=\"TempUnitB\">\r\n <option value=\"degC\">\u00baC <\/option>\r\n <option value=\"degF\">\u00baF <\/option>\r\n <\/select>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <\/div> <!-- Section 4 Ends -->\r\n <\/div>\r\n\r\n\r\n <div class=\"col-md-12\"> <!-- Button Section Starts -->\r\n <div class=\"div-table-row\">\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px; \">\r\n <input type=\"button\" class=\"menu-text fusion-button button-default button-medium\"\r\n value=\"Calculate\" onclick=\"FindInput(Equivalents)\" \/>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\">\r\n <p style=\"font-size:13px;\">\r\n <input type=\"reset\" value=\"Reset\"\r\n class=\"menu-text fusion-button button-default button-medium\"\r\n onclick=\"PressureUnit='bara'\" \/>\r\n <\/p>\r\n <\/div>\r\n <div class=\"div-table-col\"><\/div>\r\n <\/div>\r\n <\/div> <!-- Button Section Ends -->\r\n <\/div>\r\n <\/div>\r\n <input\n class=\"apbct_special_field apbct_email_id__elementor_form\"\n name=\"apbct__email_id__elementor_form\"\n aria-label=\"apbct__label_id__elementor_form\"\n type=\"text\" size=\"30\" maxlength=\"200\" autocomplete=\"off\"\n value=\"\"\n \/><\/form>\r\n <script defer\r\n src=\"https:\/\/static.cloudflareinsights.com\/beacon.min.js\/v8b253dfea2ab4077af8c6f58422dfbfd1689876627854\"\r\n integrity=\"sha512-bjgnUKX4azu3dLTVtie9u6TKqgx29RBwfj3QXYt5EKfWM\/9hPSAI\/4qcV5NACjwAo8UtTeWefx6Zq5PHcMm7Tg==\"\r\n data-cf-beacon='{\"rayId\":\"80d490d58d64c8f4\",\"token\":\"2478b1623979417c84df99f8aaab32e7\",\"version\":\"2023.8.0\",\"si\":100}'\r\n crossorigin=\"anonymous\"><\/script>\r\n<\/body>\r\n\r\n<\/html>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7a2b594 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7a2b594\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2722537\" data-id=\"2722537\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1719695 elementor-widget elementor-widget-text-editor\" data-id=\"1719695\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The Magnus formula provides a method to determine the saturation vapor pressure of water over a range of temperatures, serving as a foundation for various dew point calculations. Here’s a detailed explanation:<\/p>\n<p><strong>Magnus Formula<\/strong>: The equation for saturation vapor pressure, P, over liquid water is: P(T) = A * exp((B * T) \/ (C + T)) Where:<\/p>\n<ul>\n<li>P(T) is the saturation vapor pressure at temperature T.<\/li>\n<li>A, B, and C are constants determined from empirical data for specific temperature ranges.<\/li>\n<li>T represents the temperature.<\/li>\n<\/ul>\n<p><strong>Dew Point Calculation<\/strong>: Dew point is the temperature at which air is saturated with moisture, and water vapor begins to condense. This is the temperature corresponding to a relative humidity of 100%.<\/p>\n<p>To compute the dew point using the Magnus formula:<\/p>\n<ol>\n<li>First, find the actual vapor pressure of the air from relative humidity and current temperature measurements.<\/li>\n<li>Then, adjust the Magnus formula to compute T (dew point temperature) for a given vapor pressure: T_dew = (C * ln(P \/ A)) \/ (B – ln(P \/ A)) Where:<\/li>\n<\/ol>\n<ul>\n<li>T_dew is the dew point temperature.<\/li>\n<li>P is the actual vapor pressure, typically derived from relative humidity and temperature.<\/li>\n<li>A, B, and C are the same constants from the Magnus formula.<\/li>\n<\/ul>\n<p><strong>Application in SF6 Gas<\/strong>: In the context of SF6 gas, the dew point is of significant importance. A lower dew point indicates drier SF6 gas, which is preferable as moisture can affect the dielectric properties of SF6, leading to potential issues in high voltage equipment. Using the Magnus formula, professionals can accurately measure the moisture content in SF6 gas and take necessary actions if the dew point is not within the desired parameters.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Dewpoint Calculator for Moisture Equation Courtesy of Alpha Moisture Systems Steps: 1. Dew Point or Absolute Values: Begin by entering data into the dew point fields or any of the four absolute value sections. Ensure the correct unit of measurement is chosen. 2. Advanced Calculations: For results pertaining to ‘dew point at line pressure’ or […]<\/p>\n","protected":false},"author":1,"featured_media":8562,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"content-type":"","footnotes":""},"class_list":["post-8555","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dew Point Calculator for Moisture<\/title>\n<meta name=\"description\" content=\"Accurately determine dew points with our advanced calculator. 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