5.1.10 External sample control
Use the External Sample Control to align the data that is collected by the WQM sensor
with the data that is collected from other sensors when they are all connected to an
external logger or controller. The WQM is turned on by the external logger at the start of
the sample interval. The logger sends a "stop" command to the WQM sensor at the end
of the data collection (sample) interval. The external logger turns the power off.
The user can adjust the data collection time, the delay time, and the length of time the
sensor will wait for the dissolved oxygen value to become stable.
•
Sample For: The maximum length of time the sensor collects data before it stops and
goes into a low power state.
•
Sample Delay: The user can adjust the length of time the sensor waits to collect data.
This helps the user align the start of data collection with sensors that have a longer
warm-up time, and decreases the sensor's power consumption.
•
DO Stabilization: The user sets the length of time the sensor will wait for a stable DO
value.
5.2 Data collection
The sensor can be set up to start data collection at a user-specified time and date.
1.
Make sure the sensor is in
In Standby
.
2.
Push
Start WQM Sample.
3.
Use the calendar and the slider menu to set a date and time for the sensor to start
data collection.
In the example above, the sensor is set up at 6:46 am to start data collection in
3 hours, 12 minutes, and 22 seconds, at 9:58 am.
4.
Push
Start WQM in
... to set a specific start time.
Reference
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