User's Manual SiteView – Data Logger Software

this.SampleIntervalthis.Linesl[x].ValueThe sampling interval in second the logger has.The physical measurement of the specified line.Equation ExamplesDew Point TemperatureThe dew point temperature is the temperature at which the air can now longer hold all of its watervapour, and some of the water vapour must condense into liquid water.Because dew point temperature can be derived from the relative humidity and the temperaturereadings, the following equation can be used for the dew point temperature measurement.This equation is for Site-Log LRHT-1/2 data logger. In the Logger Configuration dialog, add anew custom channel to the logger and apply this equation to the channel.// A custom equation for dew point temperature.// Condition:// channel#0 of the logger must be for temperature.// channel#1 of the logger must be for relative humidity.// both channels must be enabled.public double DewPointEquation(double Input){double logEx, dew_point, rh, temperature;temperature = Channels[0].Measurement;rh = Channels[1].Measurement;logEx = 0.66077 + 7.5 * temperature / (237.3 + temperature) +(Math.Log10(rh) - 2);dew_point = (logEx - 0.66077) * 237.3 / (0.66077 + 7.5 - logEx);return dew_point;}Carbon Dioxide Transmitter (0 – 5000 PPM)This equation is for a CO2 transmitter with the following specifications:Measurement Range:Output0– 5000 PPM of CO20 – 10 VDCThis equation can be used on 0 – 10 VDC or 0 – 20 VDC channel.//A custom equation for CO2 transmitter// Transmitter specifications// Measurement Range: 0 – 5000 PPM// Output: 0 – 10 VDCpublic double CO2Equation(double Input){double output;output = 5000 * Input / 10;return output;}SiteView User’s Manual – Microedge Instruments Inc. 191/200