Lutron SC-942 – Sound Level Calibrator

SPECIFICATIONS

Frequency

1000 Hz ± 2 %.

Sound Pressure Level

94 dB range

94 dB ± 0.75 dB.

114 dB range

114 dB ± 0.9 dB.

Suitable Microphone Type

0.5 inch or 1 inch microphone.

Total harmonic distortion

94 dB range

± 2 %.

114 dB range

± 5 %.

Operating Temp.

0 to 50 °C (32 to 122 °F).

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

Round 50 mm dia. x 82 mm.

Weight ( including batteries )

Approx. 350 g/0.77 LB.

Accessories Included

Instruction manual…………………………………….. 1 PC. 0.5″mic.adapter………………………………………. 1PC. Adjust Screw Driver……………………………………. 1 PC.

Carrying case, CA-03………………………………….. 1 PC.

CALIBRATION PROCEDURES

1.

Insert the microphone of ” SOUND LEVEL METER ” carefully all the way into the coupler section of the SC-942.

2.

Set the ” Sound Level Meter ” to a range suitable for measuring ” 94 dB ” or ” 114 dB “.

3.

Set the ” OFF/94 dB/114 dB ” to ” 94 dB ” or ” 114 dB ” position.

A pure 1,000 Hz tone is produced.

4.

Adjust the calibration VR (knob) of the ” Sound Level Meter “. until that the display reach to 94.0 dB or 114.0 dB exactly.