![background image](http://html1.mh-extra.com/html/campbell/crs451/crs451_product-manual_3790824019.webp)
5. Select a Start and Stop Time.
a. Select a time in the future when measurements should begin. Selecting a time in the
past will force the sensor to begin making measurements immediately at the
indicated frequency. If an offset calculation was selected in the previous screen, the
sensor will not make correct measurements. If an offset calculation is needed, a Start
Time must be selected far enough in the future that the sensor can be properly
placed in its measurement position before measurements begin.
b. If desired, select time in future when measurements should cease.
c. Select the rate at which measurements will be made. This does not configure the
sensor for data storage, only the rate at which measurements are made.
CRS451/CRS456 Submersible Water-Level Recording Sensor
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