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Programmable Sound Level Meter

With Internal Datalogging

 

Programmable Sound Level Meter
  • 16,000 datalogging measurements, with date/time stamp and user selectable sample intervals
  • Fast response analog bargraph
  • Max Hold function
  • A or C Frequency Weightings
  • Fast or Slow response
  • Analog 10mV/dB output
  • RS-232 port with software and cable (Windows®95, 98, ME, NT, 2000 compatible)
Datalogging: The internal datalogger records and stores over 16,000 measurements with user selectable sampling rate from 1 to 86,400 seconds. Meter includes built-in RS-232 port, windows software which allows for easy data transfer and analysis, serial cable, microphone wind cover, 9V battery and case. The software can create ASCII files to facilitate custom analysis and report generation in standard spreadsheet programs.

 

 

Specifications


Standards: ANSI S1.4 Type 2 and IEC651 Type 2
Frequency Weighting: A and C Weighting, 31.5Hz to 8kHz
Range: 30 to 130dB, 6 Ranges, 50dB/Range
Digital Display: 4 digit LCD, 0.1dB resolution
Time Response: Slow, Fast
Bar Graph: 50dB, 1dB resolution
Microphone: 1/2" Electret condenser
Analog Outputs: AC: 0.707 Vrms@FS, DC: 10mV/dB
Digital Interface: Bi-directional RS-232
Datalogger Memory: up to 16,000 records
Datalogging Sample Rate: 1 to 86,400 sec.
Environmental: Operating: 0-50°C, 10-80% RH
Power: 9V battery, approx. 30 hrs. continuous use
Dimensions: 10.5x2.8x1.4" (266x72x35mm)
Weight: 12.5 oz. (354g)

 

Available items
Item Number Item
LM-3060 Sound Level Meter Datalogger
LM-3060/C Sound Level Meter Datalogger w/NIST Certificate
LM-3063 AC/ DC Recorder Output Cable
LM-3064 AC Adapter
LM-3056 94/114dB Sound Level Calibrator
LM-3056/C 94/114dB Sound Level Calibrator w/NIST Certificate

 

 

Digital Sound Level Meter

 

Digital Sound Level Meter
  • Accurate to 1.5 or 2 decibels over wide range
  • A and C weighting
  • Weight: 7.6 oz. (215 g)
  • 0.1dB resolution
  • Fast/slow response
  • Max Hold with reset button
  • Two measuring ranges: Low (35 to 100dB) High (65 to 130dB)
  • Large 0.5" 3-1/2 digital LCD display
  • Built-in calibration check (94dB)
  • Auxiliary DC/AC conditioned outputs of 10mV/dB
  • Utilizes 0.49" (12.3mm) condenser microphone
  • Complete with vinyl case and 9V battery
  • Dimensions: 9.5x2.7x1" (241x69x25mm).
  • Model LM-3052 Meets IEC 651 type 2 & ANSI standards

 

 

Available items
Item Number Item
LM-3051 Digital Sound Level Meter (2db accuracy)
LM-3051/C Above with NIST Certificate
LM-3052 Digital Sound Level Meter (1.5 db accuracy)
LM-3052/C Above with NIST Certificate
LM-3056 94/114dB Sound Level Calibrator
LM-3056/C Above with NIST Certificate.


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Sound Level Alert

With Alarm

 

  • Bright LEDs (red flashing or green) alert user when sound level is too
    high or too low – LEDs can be read from 30m (100ft)
  • Continuous Monitoring of Sound Level
  • Ideal for industrial, hospital, auditoriums, schools and other areas where there is a need for being alerted when sound level reaches set point
  • Meets ANSI Type 2 and EN 60651 accuracy specs — compliant to OSHA
  • User settable high or low limit (30 to 130dB) indication with output to drive external relay module
  • Wall, desk or tripod mount
  • Microphone rotates 180° for desired placement. Optional 15ft (5m) microphone extension cable for remote monitoring
  • Complete with AC adaptor, microphone wind cover,wall, desk or tripod mount (optional Tripod TR100)

Sound Level Alert

Selectable two-colored
LEDs (Green and Red) alert
user when reading is above
or below setpoint

 

 

Specifications


Display: 4.6 x 3.125” multifunction LCD
Frequency Bandwidth: 31.5 Hz to 8 kHz
Microphone: 0.5” Electret Condenser Microphone (remoteable)
Measurement Ranges: 30 to 80dB, 60 to 110dB, 80 to 130dB
Frequency Weighting: ‘A’ and ‘C’ (Programmable)
Response Time:

Fast (125ms) / Slow (1s) (Programmable)
Resolution: 0.1dB
Alarm Output: 3.5mm Mono Phone Plug, Maximum: 3.4mA @ 5 VDC
Minimum Output Voltage: 2.5 VDC
Power:
AC/DC Adaptor for full functions; 8xAA batteries for monitoring function only without LED alert
CE/Warranty: CE approved/ 1 year warranty
Dimensions / Weight: 8.75x7.1x1.25” / 0.63 lbs. (22x18x3.2mm / 285g)


Available items
Item Number Item
LM-311002 SL130 Sound Level LED Alert, Green Housing,110VAC Adaptor
LM-311002/C Same as Above w/ NIST certificate
LM-311003 SL130 Sound Level LED Alert, Silver Housing,110VAC Adaptor
LM-311003/C Same as above with NIST certificate
LM-311003/220 SL120 Sound Level LED Alert, Silver Housing, 220V AC Adaptor
LM-311003/240 SL130 Sound Level LED Alert, Silver Housing, 240V AC Adaptor
LM-311005 Remote Microphone cable 15’
LM-311011 AC Alarm Relay Module 9 foot cable (3m)
LM-311013 DC Alarm Relay Module 9 foot cable (3m)
LM-311031 120V AC Adaptor
LM-311033 220V AC Adaptor
LM-311035 Sound Level Calibrator, 94/114dB

 

 

Sound Level Calibrator

 

Sound Level Calibrator
  • Calibrates and verifies Sound Level Meter operation

  • 1kHz sine wave at 94dB/114dB is generated to an accuracy of 5% (frequency) and ±0.8dB

  • 3 position switch (OFF/94dB/114dB)

  • Total Harmonic Distortion (THD) <2% at 94dB

 

Available items
Item Number Item
LM-3056 94/114dB Sound Level Calibrator
LM-3056/C Sound Level Calibrator with NIST Certificate

 

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