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DIGITAL SOUND LEVEL METER

840029

Instruction Manual

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Summary of Contents for 840029

Page 1: ...DIGITAL SOUND LEVEL METER 840029 Instruction Manual ...

Page 2: ...ructions A Measuring Procedure 4 B Settings for General Applications 4 C Signal Output 4 D Calibration 4 5 E Precautions 5 F Battery Replacement 5 IV Specifications 6 Frequency Weighting A and C Characteristics 7 Response Fast and Slow Characteristics 7 V Warranty 8 2 ...

Page 3: ...h OSHA using Sper Scientific s Acoustical Calibrator 840031 or equivalent Features include a built in calibration adjustment Fast or Slow time weightings Maximum Hold function large display with a resolution of 0 1 dB low battery indicator and AC or DC output The instrument has a fold out tripod stand and comes with carrying case instructions II PANEL DESCRIPTION Overload indicator Power selector ...

Page 4: ...NDICATOR a triangle shape appears in the upper left display slide the RANGE selector to another setting Point the microphone at the sound source the sound level will be displayed in decibels dB To power off the unit slide the POWER selector to the OFF position B SETTINGS FOR GENERAL APPLICATIONS Set POWER selector to an ON position Set RESPONSE selector to Fast Set WEIGHTING to A Set RANGE selecto...

Page 5: ...rator and place the calibrator onto the Sound Level Meter s MICROPHONE Slide the RANGE selector to the 50 100 dB position Slide the RESPONSE selector to FAST Slide the WEIGHTING selector to A Use the calibration screw driver to gently turn the CALIBRATION ADJUSTMENT until the display reads 94 0 E PRECAUTIONS Do not store or operate the unit in high temperatures or in a high humidity environment fo...

Page 6: ... square wave generator Output Signal AC 0 5 Vrms corresponding to each range step DC 0 3 1 3 VDC 10 mV per dB Output impedance is 600 ohm Output Terminal 3 5 mm diameter phone jack Operating Temp 32 122 F 0 50 C Operating Humidity Less than 90 RH IV SPECIFICATIONS Power Supply One 9V battery heavy duty or alkaline type Power Consumption Approximately DC 6 mA Weight 10 oz Dimension 8 1 8 x 3 1 8 x ...

Page 7: ...200 10 9 0 2 0 250 8 6 0 2 0 315 6 6 0 2 0 400 4 8 0 2 0 500 3 2 0 2 0 630 1 9 0 2 0 800 0 8 0 2 0 1000 0 0 2 0 1 25k 0 6 0 2 0 2 5 1 6k 1 0 0 1 3 0 2 5 2k 1 2 0 2 3 5 3 0 2 5k 1 3 0 3 4 0 3 5 3 5k 1 2 0 5 4 5 4k 1 0 0 8 4 0 5 0 5 1 3 5 0 4 5 6 3 0 1 2 0 5 5 5 0 8 1 1 3 0 6 0 5 5 RESPONSE Fast and Slow CHARACTERISTICS Fast Reading is maximum value at 0 2 seconds Slow Reading is maximum value at 1 ...

Page 8: ...l be substituted if available This warranty does not cover damage resulting from accident misuse or abuse of the product In order to obtain warranty service ship the unit postage prepaid to SPER SCIENTIFIC LTD 7720 East Redfield Suite 7 Scottsdale Arizona 85260 480 948 4448 www sperscientific com Please Note The defective unit must be accompanied by a description of the problem and your return add...

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