Lutron TRSL-401 Sound Level Transmitter, 4-20 mA, IoT

Brand
Lutron
Model number
TRSL-401

Sound level transmitter for 30 to 130 dB with A/C weighting to IEC 61672 class 2 and a linear 4 to 20 mA output.

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Key features

  • 4-wire installation.
  • Linear current output.
  • Easy installation and connection.
  • Sound level range 30 to 130 dB.
  • Frequency and Time weighting are designed to meet IEC 61672 class 2.
  • A & C weighting networks comply with standards.
  • 0.5" standard microphone head.
  • Time weighting (Fast) dynamic characteristic modes.
  • Build External Zero& span calibration VR.
  • Auto range

Specifications

Specifications
CircuitCustom one-chip of microprocessor circuit.
Measurement TypeSPL : Sound pressure level
Measurement Range30 - 130 dB.
FunctiondB ( A & C frequency weighting ); Time weighting ( Fast )
AccuracyCharacteristics of " A ", " C " frequency; weighting network meet ANSI S1.4-2014 /; IEC 61672 -1 : 2013 class 2; Under 94 dB input signal, the accuracy; are : 31.5 Hz ±3.0 dB; 63 Hz ±2.0 dB; 125 Hz ±1.5 dB; 250 Hz ±1.5 dB; 500 Hz ±1.5 dB; 1 K Hz ±1.0 dB; 2 K Hz ±2.0 dB; 4 K Hz ±3.0 dB; 8 K Hz ±5.0 dB; Remark : The above spec. are tested under the; environment RF Field Strength less; than 3 V/M & frequency less than 30; MHz only.
Frequency Weighting NetworkCharacteristics of A & C.; A weighting : The characteristic is simulated as "Human; Ear Listening" response. Typical, if making; the environmental sound level; measurement, always select to A; weighting.; C weighting; The characteristic is near the "FLAT"; response. Typical, it is suitable for; checking the noise of machinery (Q.C.; check) & knowing the sound pressure; level of the tested equipment.
Time weightingFast - t = 125 ms; * "Fast" range is simulated the human ear; response time weighting.
Frequency31.5 to 8,000 Hz.
Microphone typeElectric condenser microphone.
Microphone sizeOut size, 12.7 mm DIA. ( 1/2 inch).
Operating Temperature0°C to 50°C /32°F to 122°F.
Operating HumidityMax. 85% RH.
Power SupplyIsolated Power 9VDC to 30VDC.; * Ripple< 2.5%
Weight340 g/0.75 Lbs without batteries.
Dimension120 mm x 96 mm x 43 mm
Accessories
Supplied with* Instruction manual: 1 PC; * Sound probe: 1 PC; * probe holder: 1 PC
Display
Output4 to 20 mA analog output
General Specifications
Loop ImpedanceMax. 90 Ω @ 24 VDC

Specifications are from the manufacturer's published information. Confirm critical values with us or the datasheet before ordering.