Simpson 886-2 Operator'S Manual Download Page 1 | Manualshive

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Simpson 886-2 Operator'S Manual Download Page 1

Simpson Model 886-2

Sound Level Meter

OPERATOR’S MANUAL

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Summary of Contents for 886-2

Page 1: ...Simpson Model 886 2 Sound Level Meter OPERATOR S MANUAL...

Page 2: ...or Customer Service at 715 588 3311 Internet http www simpsonelectric com Warranty and Returns SIMPSON ELECTRIC COMPANY warrants each instrument and other articles manufactured by it to be free from d...

Page 3: ...3 NOTES...

Page 4: ...re 11 3 APPLICATION 11 3 1 Decibel Scale 11 3 2 Measurement And Exposure Standards 11 3 3 Sound Fields 13 3 3 1 Free Field 13 3 3 2 Reverberant Field 13 3 3 3 Semi Reverberant Field 13 3 4 Microphone...

Page 5: ...5 NOTES...

Page 6: ...6 NOTES...

Page 7: ...microphone end to minimize reflections of the sound energy field being measured The 886 2 is equipped with a range selector switch which references the 0 dB point of the indicating instrument to the...

Page 8: ...the decay rate is less than 0 5 seconds per 10 dB 7 Linearity Primary indicator range is from 0 dB to 10 dB on each range Overall indicator range is 5 dB to 10 dB The dedicated OSHA range primary indi...

Page 9: ...40 C to 60 C with the battery removed 12 Temperature influence Typically 0 015 dB C at 1kHz 13 Operating Humidity 0 to 90 relative humidity non condensing for a reading change of 0 5 dB 14 Warm up Ti...

Page 10: ...Simpson factory If the Instrument is covered by warranty include the model number serial number and date of purchase 2 4 Battery Installation Or Replacement The 886 2 is powered by a 9 volt alkaline...

Page 11: ...ll check adjustment and calibration g When the Instrument is not in use store it in a room free from temperature extremes dust corrosive fumes mechanical vibration and shock If storage time is expecte...

Page 12: ...Thus at any level measurements taken with various weightings can be compared in determining the frequency content of the noise This is done by indicating the level dB accompanied by the weighting let...

Page 13: ...most commonly and exists whenever the sound level being measured contains a significant amount of both reflected and direct sound waves 3 4 Microphone Orientation a When making measurements in a free...

Page 14: ...l arrangement is to tilt the mi crophone axis at an angle of approxi mately 45 to 70 with respect to the hori zon This allows the operator to step sev eral feet back or completely away and still be ab...

Page 15: ...by office and plant noise Federal regulations such as the Walsh Healy Act require use of the A response for all tests When a standard test procedure is not involved data can be taken with each of the...

Page 16: ...d source level not an accurate measurement 3 11 Dual Sound Sources When separate measurements are made on two sound sources the combined effect cannot be found by direct addition For example If two ma...

Page 17: ...Features All items and features used to operate the 886 2 are described in Table 4 1 and illustrated in Figure 4 1 Table 4 1 Operational Items And Features 1 Range Switch This eleven position rotary...

Page 18: ...C weighting re quirements of the ANSI Standard Specifica tion for a Type 2 Sound Level Meter 3 SLOW FAST Slide Switch This slide switch is used to select the response time of the meter circuit as defi...

Page 19: ...is de signed to calibrate the 886 2 The calibration procedures are contained in the operator s manual for the 890 2 9 Battery Compartment The battery compartment which is totally separated from the e...

Page 20: ...art recorder oscilloscope or the Simpson 898 Octave Band Filter These jacks are designed to give the operator more detailed and comprehensive sound analysis study The larger of the three jacks is desi...

Page 21: ...21 NOTES...

Page 22: ...22 NOTES...

Page 23: ...23 NOTES...

Page 24: ...SIMPSON ELECTRIC COMPANY 520 Simpson Avenue Lac du Flambeau WI 54538 0099 715 588 3311 FAX 715 588 3326 Printed in U S A Part No 06 115308 Edition 8 05 07 Visit us on the web at www simpsonelectric c...

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