that the manufacturer replaces the battery every time the sensor is returned to be
calibrated or serviced.
The UPS in the sensor comes on when the voltage falls below 8 V while the sensor
collects data.
•
Autonomous Control
: The sensor closes its data files, goes into a low power state,
and comes on again for the next scheduled data collection.
•
External Control
: The sensor goes to
In Standby
.
UPS conditions
•
Normal—The normal condition of the UPS is shown above. The sensor is operating
at the normal, user-selected, data collection schedule.
•
Red box, "Power Failure Detected" "Normal Interval"—one or two consecutive data
collection sequences have been interrupted by a power loss or low voltage. The
sensor will try to collect data on its normal schedule.
•
Red box, "Power Failure Detected" "1 Hour Interval"—three to five consecutive data
collection sequences have been interrupted by a power loss or low voltage. The
sensor will try to collect data after a one-hour delay.
•
Red box, "Power Failure Detected" "24 Hour Interval"—six or more consecutive data
collection sequences have been interrupted by a power loss or low voltage. The
sensor will try to collect data after a 24-hour delay.
•
Yellow box, "Power Failure Detected" "Normal Interval"—The UPS has come on but
the sensor completed the last data collection try.
Clear power failure message
•
Go to the
Pre-Deployment
menu at the top of the software window. Select "Clear
Power Failure Message."
5.1.9 Autonomous sample control
Use the Autonomous Sample Control value when the sensor is connected to a constant
power source. The sensor uses the internally stored setup to collect and save data, and
to go into a low power state. The file names of the saved data increment each time the
sensor is turned on. The file names append when the sensor has power and is collecting
data or in a low power state.
In the example above, the sensor is set up to collect data for 8 minutes every 30 minutes.
Reference
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