Xylem DH-21 - Manual (Page 68)

4-22 Using the Graphical “W ATER LOG” Software
DH-21
SCAN RATE HYPER DIVISOR FAST SCAN RATE
1 minute 60 1 seconds
1 minute 30 2 seconds
1 minute 20 3 seconds
1 minute 15 4 seconds
1 minute 12 5 seconds
1 minute 10 6 seconds
1 minute 6 10 seconds
1 minute 5 12 seconds
1 minute 4 15 seconds
1 minute 3 20 seconds
1 minute 2 30 seconds
1 minute 1 60 seconds
This option allows the sensor to capture and record quick changing data without the expense of
battery life by adjusting the scan rate based on the data change rate. It also saves memory by not
logging data when the data is not changing significantly.
Note that this check is on the level parameter only, not the temperature, and the values entered
for the hyper limit and delta limit will be in the same units as set in the coefficients options. For
example, if the coefficients Pressure / Level option is set to feet, the hyper limit and delta limit
will also be in feet.