Spartan 821/721 Manual Instrument Performance Specifications A-21
Time History Measurement System
Timed Stop
Measurement starts manually and runs for set time (Duration) valid entries
include the range of 00:00:01 (1 s) to 23:59:59
Daily Timer
Measurement runs for up to three time blocks per day, qualified by Start Date
and Start Time, and End Date and End Time
Continuous Start measurement run manually or when meter is powered on
Period
Schedule for these periods:
Seconds: 1, 2, 5, 10, 15, or 30;
Minutes: 1, 2, 5, 10, 15, or 30;
Hours: 1
Occurrence Date
and Time Stamp
yyyy-mm-dd hh:mm:ss
Time History
Metrics
Acoustic metrics:
LAeq, LCeq, LZeq, LApeak, LCpeak, LZpeak
LASmax, LAFmax, LAImax, LCSmax, LCFmax, LCImax, LZSmax, LZFmax, LZImax,
LASmin, LAFmin, LAImin, LCSmin, LCFmin, LCImin, LZSmin, LZFmin, LZImin,
Overload,
OBA Leq, Lmax, Lmin*,
TWA3, TWA5†
Non-acoustic metrics:
Battery Percentage, External Voltage, Power Source
*OBA processing must be installed (Firmware Option 721/821-OB3), and the OBA
Time History setting must be enabled on the meter.
†Used for post-processing Dosimetry recalculations.
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