Nor1255 Sound Calibratorไทย
Nor1255 is a small battery-operated precision class 1 microphone calibrator generating 114 dB @ 1k Hz conforming to IEC 60942 and ANSI S1.40. Each Nor1255 sound calibrator is supplied with an individual accredited calibration certificate.
The all-digital design with a quartz-controlled signal generator ensuring a frequency stability not yet seen on any calibrator on the market today. The reference microphone and accompanying control circuit maintain a constant sound pressure level inside the calibration coupler and automatically adjusts for changes in load volume, temperature, humidity and barometric pressure.
Highlights
- Robust, compact and battery operated
- Supplied with accredited calibration certificate
- Conforms to EN/IEC 60942:2017 Class 1 and ANSI S1.40–2006 class 1
Features
- Conforms to EN/IEC 60942:2017 Class 1 and ANSI S1.40–2006 class 1
- Ultra-stabile silicone reference microphone
- All-digital quartz-controlled signal generator
- Fully compensated for static pressure, humidity and temperature
- Sound pressure independent of microphone equivalent volume
- Robust, compact and battery operated
- 114dB @ 1000 Hz
- Supplied with accredited calibration certificate
Standards
- IEC 60942:2017
- ANSI/ASA S1.40-2006
Specifications
General Sound calibrator class 1 according to EN/IEC 60942:2017 Class 1 and ANSI/ASA S1.40-2006 (R2011).
Microphone size: 1/2” and below via adapters
Calibrator frequency ( @ Reference conditions): 1000 ±1.00 Hz
Generated Sound Pressure Level relative to 20µPa (@ Reference conditions): 114.0±0.2 dB
Distortion: Max 2.0 %
Stabilizing time: 20 seconds
Sensitivity to environmental conditions: As specified for IEC 60942 class 1 / ANSI S1.40.
Environmental range for specified operation:
Temperature: -10ºC to +50ºC / 14ºF to 122ºF
Relative humidity: 25 % to 90 %
Air pressure: 65 kPa to 108 kPa
Power off: By power switch or when microphone is removed (may be deactivated)
Battery type: 2 x LR03 alkaline batteries (AAA-size)
Battery life: > 10 hours
Battery low: Automatically switching off if battery voltage too low
Weight: 125 g / 0.28 lb
Size ( LxWxH ): 97 x 51.5 x 41 mm / 3.8 x 2.0 x 1.6“
Accessories included:
May vary if supplied as part of a sound level meter kit:
- Accredited calibration
- 2 x AAA batteries
- Instruction manual
- Leather pouch Nor1345
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