temperatures are used to calculate the sound speed and in turn, the distance. The
distance error is fairly small for variations in temperature, about 1% for a 10 ºF (5.6 ºC)
temperature error.
LOGGING – enables the logging features of the Well Watch. Press the UP or DOWN
button to select the logging preference. Three logging modes are available: Disable,
Enable or Change. Enable sets the unit to record data each logging period. Change
sets the unit to compare data each period against the last logged data point. The new
data point is stored in memory if the measurement has changed more than the log
change margin (as defined in the Log Change mode.) When it is time to record a new
data point, a log message is displayed on the error line and remains until valid data is
recorded.
Do not remove the probe or turn off the Well Watch until this message
disappears
.
Once logging is enabled, new data points will be added to the end of the list until the
memory is full. When the memory is full the Well Watch will continue to function but
new data points will be discarded. The 2010 PRO records data additionally in windows
readable text files which has a much larger capacity and will continue to record.
**LOG RATE – sets the time interval in minutes between logged data points in the
range 0 to 60 minutes. This is accessed by pressing SET after choosing ENABLED in
the LOGGING menu. Every measurement is recorded if it is set to zero.
Eno Scientific Well Watch 670
Page 18