Lutron SC-941 Sound Calibrator

Lutron SC-941 Sound Calibrator

Features
* Use to calibrate the " Sound Level meter " precisely.
* 1000 Hz frequency .
* 94 dB Sound Pressure Level
* Suitable for 0.5 & 1 inch microphone. Total harmonic distortion : 2 %.
* According IEC942, Class 2 Standard
* Power by 006P DC 9V battery, 2 PCs.
* Durable bench type housing case.
* Built-in over input protection.

Specification
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.
0.5" mic. adapter.
Adjust Screw Driver.
Carrying case, CA-03.

Calibration Procedure
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.

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