94 dB
SOUND CALIBRATOR
Model : SC-941
FEATURES
Standard 94 dB 1000 Hz sound calibrator, useful to calibrate the " Sound Level meter "
precisely.
SPECIFICATIONS
Frequency 1000 Hz ± 2 %.
Sound Pressure Level 94 dB ± 0.75 dB.
Suitable Microphone Type 0.5 inch or 1 inch microphone.
Total harmonic distortion ± 2 %.
Standard According IEC942, Class 2
Operating Temp. 0 to 50 ℃ (32 to 122 ℉).
Power Supply Heavy duty or Alkaline type, DC 9V battery. 006P,
MN1604 ( PP3 ) or equivalent, 2 PCs.
Power Consumption Approx. DC 7 mA.
Battery Check Build in " Battery test indicator "
Dimension Dia 50 mm ( round ) x 145 mm ( length ).
Weight ( including batteries ) Approx. 350 g/0.77 LB.
Accessories Included Instruction manual............................................ 1 PC.
0.5" mic. adapter.............................................. 1 PC.
Adjust Screw Driver........................................... 1 PC.
Carrying case, CA-03......................................... 1 PC.
CALIBRATION PROCEDURES
1)If the calibrated " SOUND LEVEL METER " used the 0.5" microphone, then on the
" Couple Section " should install the " 0.5" Mic. Adapter " first.
Consideration :
If the calibrated " SOUND LEVEL METER " used the 1 inch microphone, then on the
" Couple Section " should take away the " 0.5" Mic. Adapter ".
2)Insert the microphone of calibrated " SOUND LEVEL METER " carefully all the way
into the coupler section of the Sound Calibrator.
3)Set the calibrated " SOUND LEVEL METER " to a range suitable for measuring " 94 dB ".
4)Set the " Off/BAT. TEST/On Switch " to " ON " position.
A pure 1,000 Hz tone is produced.
5)Adjust the calibration VR (knob) of the " Sound Level Meter ". until that the display
reach to 94.0 dB exactly.
