User Interface Specifications; Input Specifications; Usb Client Interface Specifications; Usb Host Interface Specifications - Larson Davis SoundAdvisor 831C Reference Manual

A.1.5 User Interface Specifications
Keyboard: 13 keys, quiet elastomer touch with blue
back-lighting for measurement control and data
navigation
Status Indicators:
• Red LED under the STOP/STORE key
indicates measurement stopped
• Green LED under the RUN/PAUSE key
indicates measurement running
• Green LED under the power key indicates
battery charge and power on/off in
progress
Display:
• TFT full color LCD, 240 by 320 dot matrix
• White backlight with adjustable brightness
and on–time
• Touch screen to assist in data navigation
and measurement control
• Multiple color themes for various lighting
conditions
Display update rate: ≤ 1 s
Lock: User interface may be locked and unlocked
Languages: Czech, English, French, German, Italian,
Norwegian, Portuguese, Russian, Spanish, Swedish,
Turkish
A.1.6 Input Specifications
Connector: Latching 5-pin circular connector, mates to
PRM831 or EXCxxx cables
Preamplifier Supply: 36 volt at 5mA available to
power preamplifier
Input Impedance: ≥ 100kΩ || 300 pF
Direct Input: Absolute maximum of ±35 V, DC bias
readout 0 to +35 V
Gain Control: Selectable 0 or +20 dB gain
Full Scale Input 0 dB Gain: ±14.14 Vpeak AC
Full Scale Input +20 dB Gain: ±1.414 Vpeak AC
ICP Input (use ADP074): Constant current of 4 mA,
maximum voltage of 28 V
Sample Rate: 51,200 sps
A.1.7 USB Client Interface Specifications
Type: USB 2.0 High–Speed Mini–B connector
Power Draw: ≤ 500mA from PC, USB Hub, or PSA029
Supported Hosts:
• Computer with SLM Utility-G4
• Ethernet Dock 831INT-ET
SoundAdvisor Model 831C
• NoiseTutor
• Computer with custom software using
SWW-G4-SDK or SWW-G4-WIN
A.1.8 USB Host Interface Specifications
Type: USB 2.0 High-Speed, standard A connector
Supported Devices:
• USB Flash Memory Drive, up to 32GB FAT-32
Format, PN 831-M
• Ethernet Adapter,
DVX012
• Ethernet Adapter & USB Hub, 1G/100M/
10M, PN DVX013
• WiFi Wireless Adapter, Edimax EW-7811Un,
or D-Link DWA-121, PN DVX014 (WPA/WPA2
encryption)
• GPS Receiver HOLUX M-215, PN GPS001
• Multi–Metric
WXT520, PN SEN031
• Ultrasonic Wind Sensor, Vaisala WMT52, PN
SEN032
• Wireless LTE Gateway, Sierra Wireless
AirLink RV-50, PN COM-RV50-DC-E or COM-
RV50-DC-U
A.1.9 AC/DC Output Specifications
Connector: 2.5mm (3/16") Sub-Miniature Phone Jack,
AC Output on RING, DC Output on TIP
AC Output Selections: (1) Off, (2) 0 dB, (3) +20 dB, (4)
+40 dB, and (5) Preamp 10V
Gains of 0, +20 and +40 are relative to measurement full
scale.
AC Output Voltage: For 0 dB through +40 dB selection:
±2.12 Vpeak Maximum (-16.5dB re. to input), suitable
for LINE inputs
For Preamp selection: ±14.14 Vpeak Maximum
AC Output Impedance: 1kΩ || 1000pF
AC Output Frequency Weighting: No frequency
weighting is applied. Includes input's 0.1Hz high-pass
filter only
DC Output Voltage: 10 mV/dB, +2.2 V maximum, 0V ≈
0dB & 2V ≈ 200dB
DC Output Impedance: 1kΩ || 1000pF
Note: DC Output only while meter is running
1G/100M/10M,
Weather Sensor, Vaisala
PN
A-4