Watlow D4T Data Logger
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Chapter 5 Function Reference
Pressure Units
Set the units of pressure input.
Options:
PSI, mbar, Torr, Pascal, Atmosphere
Altitude Units
Set the units for the altitude output.
Options:
Feet, Kilofeet
Offset
Adjustment added to the result of the calculation.
Range: -99,999.000 to 99,999.000
Filter
Set the amount of filtering to apply. Filtering smooths signal fluctuations. Increase the time to
increase filtering. Excessive filtering slows the function’s response.
Range: 0.0 to 60.0 seconds
Dew Point
This function calculates the dew point based on temperature and relative humidity. A filter
and offset may be applied to the calculated value. The output is an absolute temperature.
Signals
Direction
Label
Type
Function
Receivers
T
Analog
Temperature measurement
RH Analog
Relative humidity measurement
Transmitter - - - - Analog
Filtered calculated dew point plus the offset
Function
To calculate the temperature at which water vapor will condense based on the temperature
and relative humidity of an environment, set Function to
Dew Point
.
Offset
Adjustment added to the result of the calculation.
Range: -99,999.000 to 99,999.000
Filter
Set the amount of filtering to apply. Filtering smooths signal fluctuations. Increase the time to
increase filtering. Excessive filtering slows the function’s response.
Range: 0.0 to 60.0 seconds