Lutron Sound Level Transmitter (TRSL-401) with Probe

Lutron Sound Level Transmitter (TRSL-401) with Probe

Specifications

• 4 to 20 mA IOT transmitter.
• Model: TRSL-401 ISO-9001, CE, IEC1010.

Features

• Frequency range: 31.5 to 8,000 Hz.
• 4-wire installation.
• Linear current output.
• Easy installation and connection.
• Sound level range: 30 to 130 dB.
• Frequency and time weighting 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.
• External zero and span calibration VR.
• Auto range.

Microphone Specifications

• Type: Electric condenser microphone.
• Size: 12.7 mm DIA. (1/2 inch).

Analog Output

• Analog output: 4 to 20 mA, linear to temperature.
• Loop impedance: Max. 90 Ω @ 24 V DC.

Power Supply

• Isolated power: 9 VDC to 30 VDC.
• Ripple: Less than 2.5%.

Environmental Specifications

• Operating temperature: 0°C to 50°C (32°F to 122°F).
• Operating humidity: Max. 85% RH.

Dimensions and Weight

• Dimensions: 120 mm x 96 mm x 43 mm.
• Weight: 340 g (0.75 lbs) without batteries.

Circuit and Enclosure

• Circuit: Custom one-chip microprocessor LSI circuit.
• Enclosure rating: Meter - IP63, Probe (Microphone) - IP40.

Measurement Specifications

• Type: Sound pressure level (SPL).
• Measurement range: 30 - 130 dB.
• Function: dB (A & C frequency weighting), Time weighting (Fast).

Accuracy

• Characteristics of "A" and "C" frequency weighting networks meet ANSI S1.4-2014 / IEC 61672-1: 2013 class 2.
• Under 94 dB input signal, accuracy for frequencies:
  • 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 kHz: ±1.0 dB.
  • 2 kHz: ±2.0 dB.
  • 4 kHz: ±3.0 dB.
  • 8 kHz: ±5.0 dB.
• Test conditions: RF field strength less than 3 V/M & frequency less than 30 MHz.

Frequency Weighting Network

• A weighting: Simulates "human ear listening" response, typically used for environmental sound level measurement.
• C weighting: Near "flat" response, suitable for checking machinery noise (Q.C. check) and determining sound pressure level of tested equipment.

Time Weighting

• Fast - t = 125 ms.
• "Fast" range simulates the human ear's response time weighting.

Accessories Included

• Instruction manual: 1 PC.
• Sound probe: 1 PC.
• Probe holder: 1 PC.