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Simpson 896 Operator's Manual

Multi/level calibrator
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Model 896 Multi/Level Calibrator
OPERATOR'S MANUAL

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Summary of Contents for Simpson 896

  • Page 1 Model 896 Multi/Level Calibrator OPERATOR’S MANUAL...
  • Page 2 SIMPSON ELECTRIC COMPANY nei- ther assumes nor authorizes any other persons to assume for it any other...
  • Page 3 NOTES...

  • Page 4: Table Of Contents

    Contents 1. INTRODUCTION ................7 Technical Data ..................7 Items And Accessories ............... 8 2. CARE OF INSTRUMENT ..............8 Unpacking And Inspection ..............8 Warranty ....................8 Shipping ..................... 8 Care ....................8 Battery Installation Or Replacement ..........9 3.
  • Page 5 NOTES...
  • Page 6 NOTES...

  • Page 7: Introduction

    The 896 is compact, durably constructed, lightweight, and battery-powered for portable use. The 896 has two sound pressure levels (114 dB or 94 dB) and five output frequencies (125, 250, 500, 1000 and 2000 Hz). This allows versatility of checking the A, B or C weighted frequency response characteristics of the Sound Level Meter.

  • Page 8: Items And Accessories

    Items And Accessories All items and accessories required to operate the 896 are furnished with the Instrument and listed in Table 1-2. Table 1-2. Items and Accessories Furnished With the Instrument Quantity Description Part Number Screwdriver 5-116470 9 V Battery, NEDA 1604* Operator’s Manual...

  • Page 9: Battery Installation Or Replacement

    Do not place the operating Calibrator tightly against the ear. The high sound levels could be harmful, especially to someone with a hearing deficiency. Check the calibration of the 896 periodically or whenever accuracy is in doubt. Do this by comparing Instrument with another 896 Calibrator or a reference Sound Level Meter known to be accurate.

  • Page 10: Operating Items And Features

    NEVER PLACE THE CALIBRATOR AGAINST THE EAR. READ THE OPERATOR'S MANUAL Sealing Ring Figure 3-1. Model 896 Table 3-1. Operational Items or Features 1. Battery Cap: This aluminum cap provides easy access to the Battery Compartment and holds the bat- tery firmly in position.

  • Page 11: Effects Of Atmospheric Pressure And Temperature

    Figure 3-2. Effect of Elevation Upon Calibrator Output Calibration of 884-2, 886-2 and 899 Sound Level Meters The Simpson 884-2, 886-2 and 899 Sound Level Meters have a condenser microphone and electronic weighting networks in order to obtain random in- cidence response characteristics as specified in ANSI S1.4-1983.
  • Page 12 If using the windscreen, remove and carefully insert the microphone fully into the acoustic cavity of the calibrator. With one hand, hold the 896 and the Sound Level Meter against the body, while holding the Sound Level Meter in a horizontal plane. (See Figure 3-3.)
  • Page 13 114 - 8.6 = 105.4 dB SPL. Set the Sound Level Meter to the 100 dB range and the 896 to the 250 Hz and 114 dB SPL and calibrate the Sound Level Meter for 105.4 dB SPL.
  • Page 14 NOTES...
  • Page 15 NOTES...
  • Page 16 SIMPSON ELECTRIC COMPANY 853 Dundee Avenue Elgin, IL 60120-3090 (847) 697-2260 FAX (847) 697-2272 Printed in U.S.A. Part No. 06-110689 Edition 4, 10/02 Visit us on the web at: www.simpsonelectric.com...

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