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Martindale SPC70 Class 2 Sound Lever Calibrator

SKU
MARSPC70
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Martindale SPC70 Class 2 Sound Lever Calibrator

The Martindale SPC70 Class 2 Sound Level Calibrator can be used to verify the accuracy of Martindale’s SP79 Class 2 Sound Level Meter and other Class 2 sound meters with microphones up to 25mm.

This calibrator can be used to test the aforementioned sound meters before and after use to check both their functionality and accuracy, as is required in order to maintain compliance with international standards.

The Martindale SPC70 Class 2 Sound Level Calibrator issues a 1kHz reference at 94dB and 114dB. It is accurate to 0.5dB with low levels of harmonic distortion.

The Martindale SPC70 Class 2 Sound Level Calibrator is a simple-to-use yet effective instrument. It is essential for those working with Class 2 sound meters.

Martindale SPC70 Class 2 Sound Level Calibrator Key Features

  • Verify the accuracy of Martindale’s Class 2 Sound Level Meters
  • Also suitable for checking other Class 2 sound level meters with 25mm microphones
  • Ensures compliance with international standards by checking sound meters before and after use
  • Issues a 1kHz reference at 94dB and 114dB
  • Accurate to 0.5dB with low levels of harmonic distortion
  • A simple-to-use yet effective instrument
  • Essential for those working with Class 2 sound meters

What’s Included?

  • Martindale SPC70 Class 2 Sound Level Calibrator
  • 1x 9V Battery
  • ½” Microphone Adapter
  • Carry Case
  • Instructions

Martindale SPC70 Class 2 Sound Lever Calibrator Technical Specifications 

Output sound pressure levels 94dB and 114dB rel 20µPa under reference conditions
Output frequency 1000Hz ± 2%
Accuracy of sound pressure level ± 0.5dB
Total harmonic distortion <3%
Reference conditions
Temperature 23°C
Relative humidity 50%
Atmospheric pressure 1013hPa
Influence of ambient conditions
Temperature coefficient 0.005dB / °C
Humidity coefficient 0.005dB / % R.H.
General
Power 1 x 9V, PP3 alkaline battery (IEC 6LR61, NEDA 1604A)
Battery life 40 hours approx. (alkaline battery)
Low battery indication Power ON/Low Battery LED illuminates red
Dimensions 113 x 63 x 44mm
Weight 170g approx including battery
Includes 1 x 9V battery, ½ inch microphone adaptor, carry case, instructions
Environmental
Operating conditions
Temperature 0°C to 40°C
Relative humidity 10 to 90% R.H.
Atmospheric pressure 650 to 1080 hPa
Storage conditions
Temperature -10°C to 50°C
Relative humidity 0 to 70% R.H.
Functionality  Conforms to BS EN 60942 Class 2
EMC Conforms to BS EN 55011, BS EN 61000-6-2
Martindale SPC70 Class 2 Sound Lever Calibrator - Datasheet Datasheets Martindale SPC70 Class 2 Sound Lever Calibrator - Instruction Manual Manuals & Guides

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Additional Information
SKU MARSPC70
Manufacturer Part Code MARSPC70