Access Sensor Technologies UPAS User Guide 41
Log Interval
Log interval is a legacy setting made for outdated firmware. Any firmware newer than
revision 84b has the Log Interval locked at 30-seconds.
Start Time
Allows user to set the sampling to either start immediately (START NOW), or at a future
date and time (which the Sampler waits in idle mode until, and then start
automatically).
Sample Duration
Sets the duration that the sample will run for before automatically shutting down.
Possible times are: Indefinite (default), and then 0-8760 hours plus 0-59 minutes.
Start with SET TIME
Start ON NEXT
Power-ON
(in iOS, this is set with
Start Time)
Specifies whether the UPAS begins sampling with the specified Start Time (including
now/immediately) or the next time the UPAS is powered on. Set date and time to begin
sampling. Default is NOW.
Start
(in iOS, this is set with
Start Time)
Initiates the sampling and data logging process. Note the UPAS power button / Status
indicator light changes (see “” on page 10)
Begin File Download
Downloading
(Download Log Files)
This initiates a download of the data to your Bluetooth-connected device. It changes
to the orange “Downloading” while the transfer takes place.
1The present PM
2.5
inlet is strictly limited to a 1.0 L/min flow rate – future inlets may use different flow values.
2User must connect the UPAS to a primary flow meter and enter a Flow Offset value to reduce any error. Refer to “Flow
Rate Verification and Adjustment”
on page 24 for detailed information.
Table 6 App Settings (continued)
App Button Description
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