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8. SPECIFICATIONS 

 

Display 

18 mm (.0.7") LCD 3¼ digits 

Function 

dB ( A and C Frequency weighting), Time 
weighting (Fast, Slow), Max. hold, AC Output 

Measurement Range 

30-70 dB, 60-100 dB, and 90-130 dB 
40 dB on each step, with overload indicator 

Resolution 

0.1 dB 

Accuracy (23 ± 5°) 

Frequency weighting meets ANSI S1.43 
calibration input signal on 94 dB 31.5 Hz ~ 8 
kHz), then the accuracy of "A" weighting is 
specified as: 
31.5 Hz - ± 1.5 dB, 63 Hz - ± 1 dB 
125 Hz - ± 1 dB, 250 Hz - ± 1 dB 
500 Hz - ± 1 dB, 06 kHz - ± 1 dB 
2 kHz - ± 1 dB, 4 kHz - ± 1 dB 
8 kHz - + 1.5 dB to - 3 dB 
12.5 kHz - + 3dB to - 6dB 
16 kHz - + 3dB to - No Limit 

Frequency 

31.5 Hz to 16 kHz 

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 

Operating Environment. 

0° ~ 50°C (32° ~ 122°F) and less than 80% RH 

Power Supply 

DC 9V battery x 2PCs, 0006P, MN1604 (PP3) or 
equivalent, heavy duty or alkaline type 

Power Consumption 

Approximately DC 17mA 

Weight 

1 lb (460g) with battery 

Dimension 

10½ x 3½ x 1½" (260 x 87 x 36 mm) 

Optional Accessories 

840091 Wind Screen Replacement 
840092 Bench-Top Tripod  
840093 Field Tripod 
850016 Acoustical Calibrator 

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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