Sound Level Meter  (330-2050)  Specifications           Faxback Doc. # 8711

Ranges:................................................Range of Measurement


SWITCH SETTING:

60 dB...........................................................50 TO 66 dB

70 dB...........................................................60 TO 76 dB

80 dB...........................................................70 to 86 dB

90 dB...........................................................80 to 96 dB

100 dB.........................................................90 to 106 dB

110 dB........................................................100 to 116 dB

120 dB........................................................110 to 126 dB

Accuracy......................................+/-2 dB at 114 dB sound level

Standard..................................................0 dB= 0.0002u bar

Weighting.....................................A and C (see graph, figure 2)

Response.....................................................FAST and SLOW

Signal Output.............................1.0 volt (peak) minimum into open
.........................circuit, with full scale meter deflection at 1 kHz

Load Impedance.............................................10 kohms minimum

Distortion..................................Less than 2% at 1 kHz, 0.5-volt

Microphone.............................Electorate condenser;omnidirectional
..................becoming slightly directional with increase in frequency.

Battery.........................................One 9-volt rectangular type

Battery check...........................Tests "good" from 7.0 to 10.5 volts

Expected Battery Life...................110 working hours, alkaline battery

Size....................................6-1/4" (H) x 2-7/16"(W) x 1-3/4" (D)
...........................................................(160 x 62 x 44mm)

Weight........................................6.6 ounces.(185 grams) approx.

(smc-03/04/94)