Spartan 821/721 Manual Instrument Performance Specifications A-22
Industrial Hygiene Specifications
Compliance; Standards Met
IEC 61252 Ed. 1.2 b:2017
ANSI S1.25-1991 (R2017)
Virtual Dosimeter Metrics
Activate up to four virtual
dosimeters to measure for
various criteria or
requirements.
Measurement Metrics (DOSE)
Maximum Exposure (limit 140
dB for 200 hours)
7.90E+06 Pa²h
Minimum Exposure (limit 50
dB for 1 second)
7.90E-03 Pa²s
Deviation due to unipolar
pulses
Typical deviation between positive and negative
pulses is 2%.
Configurations
(Predefined and Custom)
OSHA-HA, OSHA-PEL, ACGIH, NIOSH,
ISO-9612, Canada, or “CUSTOM”
Frequency Weightings
(Including Peak)
A, C, or Z
Exchange Rates Selectable (3, 4, 5, or 6 dB)
Criterion Level
Selectable from 55 to 100 dB with 0.1 dB
resolution
Threshold
Selectable from 55 to 100 dB with 0.1 dB
resolution, or disabled
Shift Time
Selectable from 1 to 24 hours with 0.1
resolution
Pulse Range 98 dB
Metric Label Units
Noise Dose DOSE %
Projected Noise Dose P.Dose %
Average Level with Threshold
L
avg
dB
Time Weighted Average TWA(8) dB
Projected Time Weighted Average P.TWA(8) dB
Daily Personal Noise Exposure LEP,d/LEX,8h dB
Projected Daily Personal Noise Exposure PLEP,d dB
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