DP5008.3.2.1.2.1 Settings internal Dewpoint-SensorWith the DP 500 the pressure dew point in the pressure line is measured automatically. The pressuredew point is always related to the pressure in the line.A pressure input is not necessary, because the measuring principle measures independent ofpressure.The DP 500 is able simultaneously to the pressure dew point alsocalculate the atmospheric dew pointor dew point at reduced pressure.For the calculation of the atmospheric dew point (if the gas would be expanded to ambient pressure)or the dew point at reduced pressure, it is necessary to define the reference pressure and the systempressure.8.3.2.1.2.1.1 Definition of the System pressure (relative pressure value)Main menu Settings Sensor settings I1 arrow right (2.page)Pressure Setting Fixed17By activatingthe button fixed the value of thesystem pressure could be inserted in thecorresponding text field.Pressure unit is freely selectable. Selectionmenu is opened by pressing the buttoncorresponding unitsConfirm the settingsby pressing the OK button.