White 140 Specifications

5 January 2005 – This contact update page has been added to the Acrobat document you have downloaded. Please disregard any contact information pri

9C. CONTROL FUNCTIONS1. PowerThe power switch is a push-on, push-off type switch. It has a neon lamp indicator builtinto its plastic button and should

107. Display (-dB)This control allow centering of the 1/3 octave display columns to compensate for theapproximate 16dB difference in signal level betw

11D. OPERATING INSTRUCTIONS AND APPLICATIONS1. GeneralThe principles of operation of the internal component blocks are described later in themanual.

12There is a gain adjustment potentiometer with a range of about plus-minus 3dB locatedon top of the shielded input transformer, reached by removing t

136. Equalization of a Sound Reinforcement SystemIt will be assumed that the necessary equalizer filters are in place in the amplifier chain,and that

14A plastic sheet with a display grid printed on it is furnished with the instrument. This fitsin front of the LED display. By using a soft wax pencil

15c. COMMONThis is circuit COMMON from which all other inputs and outputs are referenced.d. REMOTEThe scanned output from each filter channel is avail

16E. MAINTENANCE AND REPAIRSIf the Model 140 is plugged into a standard power outlet through its power cord, thevarious display lights should light u

17F. MODEL 141 MICPLEXOR1. DescriptionThe Model 141 Micplexor is basically a microphone commutator. It is designed to acceptthe outputs from three dy

18e. MULTIPLEX-SINGLE FunctionThe operation mode of the Model 141 may be selected via the MULTIPLEX-SINGLEswitch on the front panel. In the SINGLE pos

1Model 140Sound AnalyzerModel 140 Sound Analyzer...3Spec

19WARRANTYAll products are guaranteed against defects in materials and workmanship for one yearfrom date of shipment. Our warranty is limited to repai

2b. PRE-AMP OUT ...14c. COMMON ...

3Model 140 Sound AnalyzerDISPLAYBrilliant LED display gives a graphic point by pointreadout. Clearly readable from a distance.FILTERS27 double tuned 1

4SpecificationsDISPLAY11 x 28 array of red light emitting diodes27 channels on ISO 1/3 octave centers from 40 Hzto 16 kHz plus one broad band channelE

5

6Model 140 Sound Analyzer - Users' ManualA. UNPACKING AND INSTALLATIONThe Model 140 will be shipped fully insured for damage or loss unless the

7B. INTRODUCTION1. DescriptionThe Model 140 Sound Analyzer is a real time analyzer for signals in the acoustic range of35Hz to 18kHz. It contains a h

8noise, an equalizer filter set may then be adjusted to give the desired room responsecurve. The results of the filter adjustments are continuously di