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1. Microphone 

 

2. Threaded 

Microphone 

Cap 

3. Overload 

indicator 

4. Display 

5. Range 

selector 

6. Power/Calibration 

selector 

7.  Time Weighting selector 

8.  Max Hold/Instant selector 

9. Calibration 

Adjustment 

10. Reset button 

11. Frequency Weighting selector 

12.  Signal Output Terminal 

1.  INTRODUCTION 

 

Your new instrument meets IEC61672  and ANSI S1.43 specifications for  
a Type 1

 

Sound Meter. It covers the 30 ~ 130 dB range in both the  

A and C decibel frequency weighting scales, with 0.1 dB resolution  
and an accuracy of ±1 dB (63 Hz ~ 4 kHz). 
 
This meter can be acoustically calibrated in compliance with OSHA, using 
Sper Scientific’s Acoustical Calibrator 850016 (or equivalent). Features 
include a built-in calibration adjustment, easy to read LCD display, fast or 
slow time weightings, maximum hold function, low battery indicator, AC 
output and a reset button. CE compliant. 
 
Accessories include a windscreen, calibration tool, a carrying case, 
instruction manual and batteries. 

 

2. PANEL DESCRIPTION

 

 

 
 

 
 
 

 

 

 

 

 

 

 

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Summary of Contents for 840015

Page 1: ...TYPE 1 Sound Meter 840015 Instruction Manual ...

Page 2: ...ctions 4 3 A Measuring Procedure 3 B General Applications Settings 3 C Signal Output 3 D Precautions 4 Calibration 5 5 Battery Replacement 5 6 Frequency Weighting A and C Characteristics 6 7 Time Weighting Fast and Slow Characteristics 6 8 Specifications 7 9 Warranty 8 ...

Page 3: ...30 dB range in both the A and C decibel frequency weighting scales with 0 1 dB resolution and an accuracy of 1 dB 63 Hz 4 kHz This meter can be acoustically calibrated in compliance with OSHA using Sper Scientific s Acoustical Calibrator 850016 or equivalent Features include a built in calibration adjustment easy to read LCD display fast or slow time weightings maximum hold function low battery in...

Page 4: ...general applications select F which simulates the human ear s response time The S setting is used to obtain an average of vibrating sound levels Find the appropriate measuring range using the RANGE 5 selector If the OVERLOAD INDICATOR 3 appears in the upper left display slide the RANGE 5 selector to another setting Point the microphone at the sound source The sound level will be displayed in decib...

Page 5: ...until the display reads 94 0 External Calibration Use Sper Scientifics Acoustical Calibrator 850016 or equivalent to calibrate the unit including the microphone in compliance with OSHA Slide POWER 6 selector to the I on Turn on the acoustical calibrator and place it onto the Sound Level Meter s MICROPHONE 1 Slide the RANGE 5 selector to the 60 100 dB position Slide the TIME WEIGHTING 7 selector to...

Page 6: ... kHz 1 1 dB 3 dB 2 1 dB 3 1 dB 6 FREQUENCY WEIGHTING A and C CHARACTERISTICS Tolerance ANSI S1 43 Type 1 1 5 dB 1 0 dB 1 0 dB 1 0 dB 1 0 dB 1 0 dB 1 0 dB 1 0 dB 1 5 dB 6 0 dB 12 5 kHz 4 3 dB 6 2 dB 3 0 dB 6 0 dB 3 0 dB 6 0 dB 16 kHz 6 6 dB 8 5 dB 3 5 dB 17 0 dB 3 0 dB no limit Time Weighting Max response ref continuous signal Tolerance IEC 61672 Type 1 F Fast 1 0 dB 1 0 db S Slow 4 1 dB 1 0 db Tes...

Page 7: ...z Microphone 1 2 standard size electric condenser microphone Threaded microphone cap unscrews for microphone replacement Time weighting Fast Slow Fast F t 125 ms Slow S t 1000 ms Internal Calibration Built in internal calibration on front panel Calibrated via internal 94 dB 1kHz square wave generator Output Signal AC 750 mVrms corresponding to each range step Output Terminal 3 5 mm diameter jack O...

Page 8: ...f available This warranty does not cover probes batteries or 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 The defective unit must be accompanied by a description of the problem and your return address Register online at www spers...

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