Larson Davis Spartan 821 - A.2 Instrument Performance Specifications

Spartan 821/721 Manual Instrument Performance Specifications A-18
A.2 Instrument Performance Specifications
A.2.1 SLM Performance Specifications
1. Microphone and electrical self-noise included
2. Electrical measurement at 1 kHz. Measurements taken with ADP090 input adapter and PRM821
A.2.2 Measurement System Specifications
In this section:
• Measurement Properties Specifications
• Instantaneous “Live” Metric Specifications
• Overall AnyData™ Metric Specifications
• Overall Ln Percentile Levels
• Overall Overload Metrics
• Overall Exceedances
• C minus A
• Measurement Controls
• Time History Measurement System
• Industrial Hygiene Specifications
PRM821 with
377B02 (dB SPL)
PRM721 with
375A04 (dB SPL)
Typical Noise
Floor
1
A 17 17
C 18 18
Z 25 25
Linearity
Range
2
A
≥116 ≥116
24-140 24-140
C
≥113 ≥113
27-140 27-140
Z
≥103 ≥103
37-140 37-140
Peak Range
2
A 50-143 50-143
C 50-143 50-143
Z 62-143 62-143
SPL Max Level
2
≥140 ≥140
Peak Max Level
2
≥143 ≥143