SoundAdvisor Model 831C
A-2
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
A.1.2 Supplied Microphone Specifications
Model 377B02, ½-inch free-field, prepolarized
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
: 5-Pin Female, Switchcraft
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)
A.1.4 SLM Performance
Table A.1 Safety Marks
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
Table A.2 SLM Performance (Nominal Values)
PRM831 with
377B02
Microphone (dB)
Direct Input
(dBµV)
PRM831 with
377A15 (dB)
Gain
0 dB
+20 dB
0 dB
+20 dB
0 dB
+20 dB
Measurement
Range
1
A
24-140
20-120
n/a
n/a
21-140
16-120
C
26-140
25-120
n/a
n/a
21-140
16-120
Z
36-140
33-120
n/a
n/a
27-140
25-120
Typical Noise
Floor
1
A
16.3
15.6
8.3
-0.1
13.8
12.5
C
16.8
16.3
6.9
-1.4
14.3
13.8
Z
23.4
23.2
12.3
3.0
23.0
22.8
