CALIBRATORS FOR SOUND LEVEL METERS HD9101 AND HD9102, Merk : DeltaOhm
Keterangan
FIELD OF APPLICATION
The HD9101 and HD9102 sound level generator is a battery-fed portable sound source, suitable for calibrating sound level meters (portable and laboratory models) and acoustic measuring stations. Itâs possible to calibrate directly 1â microphones and, by means of a proper adapter (model 9101040), also 1/2â microphones; the mechanical dimensions are in accordance with standards IEC 61094-4 (âMeasurement Microphones, Part 1: Specifi cations for Laboratory Standard Microphonesâ) and IEC 61094-4 (âMeasurement Microphones. Part 4: Specifi cations for working Standard Microphones).
THE ADVANTAGES OF THE HD 9101/02 CALIBRATOR ARE THE FOLLOWING:
- with the frequency of sound pressure at 1000 Hz, calibration of sound level meters may be carried out with any kind of frequency weighting (LIN, A, B..), without introducing correction factors.
- The generated sound pressure level is independent of atmospheric pressure, so it is not necessary to correct the value to suit the atmospheric pressure.
- The HD 9101 calibrator may be used conveniently in the laboratory and in the fi led.
- It is simple to use, so it may be used even by non-skilled operators.
TECHNICAL DATA
The calibrator HD9101 satisfi es Class 1 specifi cations according to the standard IEC 60942-1988 and comply with the requirements of the standard ANSI S1.40-1984.
The calibrator HD9102 satisfi es Class 2 specifi cations according to the standard IEC 60942-1988 and comply with the requirements of the standard ANSI S1.40-1984.
- Diameter of microphones that may be calibrated: 23.77 ±0.05 mm 1â 12.7 ± 0.03 mm 1/2â (with 1/2â adapter mod. 9101040) standard according to IEC 61094-1 and IEC 61094-4
- Stabilization time: 60 sec
- Frequency HD 9101: 1000Hz ± 2%
- Frequency HD 9102: 1000Hz ± 4%
- Sound pressure level HD 9101: 94db/114dB ± 0.3dB
- Sound pressure level HD 9102: 94db/114dB ± 0.5dB (ref.101.3kPa,23°C ±3°C and 65% RH)
- Total distortion:
