1-4 Standard Accessories Model 831 Manual
No Charge Options
The following options are available at no additional charge:
• Weather Data: Wind Speed and Direction,
Temperature, Humidity (831-WTHR)
• Analog Modem or RS-232 Communication
(831-MDM)
Standard Accessories
Some of these options may not be
provided with systems designed for
specific applications.
The Model 831 is generally delivered with the standard
accessories described below.
Microphone Preamplifier
• PRM831 (16 to 140 dB measurement range)
• PRM2103 (16 to 140 dB measurement range)
Microphone
• 377B02 1/2” free-field pre-polarized microphone,
50 mV/Pa, providing performance conforming to
Class 1 sound level meter standards
or
• 377C20 1/2” random incidence pre-polarized
microphone, 50 mV/Pa, providing performance
conforming to Class 1 sound level meter standards
Software CD
• G4 LD Utility Software for setup, measurement,
download, and data viewing through CBL138 USB,
TCP/IP, serial, or analog modem connections
• SLM Utility-G3 software for setup, control and high
speed data download, for which a CBL138 USB cable
is required to utilize the software
Accessory Kit
Included with purchase of 831-FF or
831-RI; not included when Model
831 is purchased without
microphone and preamplifier.
831-ACC including:
• 831-CCS Hard Shell Case
• PSA029 Universal AC Power Adaptor, providing
power from PC via USB port
• CBL138 USB to mini-B cable, 1.8 m
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