Instrument Platform; Standards Met; Supplied Microphone Specifications; Microphone Preamplifier Specifications - Larson Davis SoundAdvisor 831C Reference Manual

A.1 Instrument Platform
A.1.1 Standards Met
Safety:
IEC 61010-1:2010: Safety Requirements for Electrical
Equipment for Measurement, Control and Laboratory
Use
EMC Emission:
CISPR 11:2015 with Amend 1 (EN 55011)
EMC Immunity:
EN 61672-1:2013, EN 61000-6-2:2005
Electrostatic discharge (ESD) Immunity:
IEC61000-4-2:2008, ± 4kV contact discharges and ± 8 kV
air discharges.
Other Standards:
Test results and certificates compliant with ISO 17025
Table A.1 Safety Marks
A.1.4 SLM Performance
Table A.2 SLM Performance (Nominal Values)
Measurement
Typical Noise
SoundAdvisor Model 831C
CE-mark indicates
compliance with the
EMC, Low Voltage, and
RoHs Directives
cUL/UL and SAA
WEEE mark indicates
compliance with the EU
WEEE Directive
PRM831 with
377B02
Microphone (dB)
0 dB
Gain
24-140
A
26-140
C
1
Range
36-140
Z
16.3
A
16.8
C
1
Floor
23.4
Z
A.1.2 Supplied Microphone Specifications
Model 377B02,
condenser microphone
Typical Sensitivity:
50 mV/Pa (+/-1.5 dB) corresponding to -26 dB re. 1 V/Pa
Frequency Response: 3.15 Hz to 20 kHz (+/-2 dB)
Capacitance: 12 pF
A.1.3 Microphone Preamplifier Specifications
Model PRM831, 1/2" diameter x 2.88"
Typical Preamplifier Attenuation: 0.08 dB
Connector: 5-Pin Male, Switchcraft TA5MLAUX
Mating Connector:
TA5FLAUX
Extension Cables: You can use a preamplifier
extension cable between the meter and the
preamplifier/microphone with no degradation for
lengths up to 200 feet (61 m).
Microphone polarization voltage: 0 V (no polarization
is provided, so use pre-polarized microphones)
Direct Input
(dBµV)
+20 dB 0 dB +20 dB
20-120 n/a n/a
25-120 n/a n/a
33-120 n/a n/a
15.6 8.3 -0.1
16.3 6.9 -1.4
23.2 12.3 3.0
½-inch free-field,
5-Pin Female,
PRM831 with
377A15 (dB)
0 dB +20 dB
21-140 16-120
21-140 16-120
27-140 25-120
13.8 12.5
14.3 13.8
23.0 22.8
prepolarized
Switchcraft
A-2