Acuity LS
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Operating Manual #OMA20200327
NOTE: The total time-integral data in columns J
– M are calculated using all stored data on the Acuity LS
device. If new total time-integral data starting at zero is desired, all data must be deleted from the Acuity
LS device using "Delete Data Log" in the user interface main screen (see Section 5, Figure 8).
CAUTION: The "Delete Data Log" command will permanently erase all test data from the Acuity
LS device.
UNIX Timestamp Conversion
Timestamps in the downloaded data files are presented in terms of the “UNIX time”, or the number of
seconds that have elapsed since 12:00 am, January 1, 1970 (UTC+0). UNIX time may be readily
converted to other time and date formats using the methods in Table 2 or this time converter -
https://www.epochconverter.com/
Table 2. Converting UNIX time to other date and time conventions.
Package
Conversion Command
MS Excel
((Unix Time Value)/86400)+25569
NOTE: Format the cell for date/time
MATLAB
datestr( UnixTimeValue / 86400,'dd-mmm-yyyy HH:MM:SS')
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P E C I F I C A T I O N S
The below sections provide limits of operation, measurement ranges, and Acuity LS device dimensions
(Table 3 and Figure 13).
Limits of Operation
The Acuity LS device continuous operating temperature range is from -40 °C to 85 °C
CAUTION: Use of the system outside this temperature range may cause permanent damage to
the Acuity LS system.
WARNING: TEMPERATURES IN EXCESS OF 100 °C MAY CAUSE BATTERY FIRE,
EXPLOSION, AND SEVERE BURN HAZARD.
