When a microphone from a sound level meter is inserted into this calibrator, the sound level meter picks up the signal and displays the signal in dB (decibel) units. The sound level meter should be adjusted (if necessary) to match the calibrator's output signal as closely as possible.
Portable compact battery operated sound level calibrator suitable for many sound level meters.
The sound Calibrator can be conveniently used both in laboratory and in the field. The 114 dB sound level allows performing calibrations even in high background noise environments.
- Meet IEC 60942:2018, class 2 standard
- Stay accurate even in extreme humidity condition
- Suitable for all sound level meters with microphone head mechanical compliant with IEC 61094-1 or IEC 61094-4 in a 1/2"(13.2mm) microphone size.
- Calibration frequency at 1K Hz with three level 114dB, 94dB and 104dB
- Vivid LED display with stability and low power indicator
- Battery powered, easy to carry around.
Specifications:
Calibration frequency
1000Hz
Frequency accuracy
±1.7%
Sound Pressure Level
94dB / 104dB / 114dB
Sound Pressure accuracy
±0.4dB
Microphone head cavity diameter
13.2mm (½")
Stabilization time
10 seconds
Total distortion
<3%
Ambient Condition Influence
Temperature and humidity influence
<0.4dB @ 0...40°C and 25...90%RH
Static pressure influence
<0.1dB @65...108kPa
Stability levels
Short term stability (<60s)
±0.15dB
Stability after 1 year with normal use
±0.35dB
LED indicator
1 green/Red: ready/low power;
3 green: 114/101/94dB
Operating Environment
0~40°C; 25~90%RH
Storage Environment
-20~50°C; <90%RH
Dimension
60 x 130 x 37.5mm
Weight
~400gms
Battery
2 x AA Alkaline battery
Set includes:
- 1 x Sound Level calibrator
- 2 x AA battery
- English instruction manual
- Standard Factory Packaging