Instruction Manual

ManualsBrandsSper Scientific ManualsMeasuring instruments840015 Sound Meter Type 1

TYPE 1 Sound Meter

840015

Instruction Manual

Summary of content (8 pages)

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TYPE 1 Sound Meter 840015 Instruction Manual
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CONTENTS 1. Introduction .............................................................................. 3 2. Panel Description ..................................................................... 3 3. Operating Instructions ............................................................. 4 3-A. 3-B. 3-C. 3-D. Measuring Procedure General Applications Settings Signal Output Precautions 4. Calibration ................................................................................ 5 5. Battery Replacement ....
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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).
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3. OPERATING INSTRUCTIONS 3-A. Measurement Procedures          Slide the POWER (6) selector to the "I" (on) position. For general applications, slide the MAX HOLD / INSTANT (8) selector to the INSTANT position. To freeze the displayed reading, slide the MAX HOLD / INSTANT (8) selector to the MAX HOLD position. Press the RESET (10) button once to reset maximum hold to the current reading. Slide the FREQUENCY WEIGHTING (11) selector to the "A" or "C" position.
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4. CALIBRATION The meter's CALIBRATION ADJUSTMENT (9) is located on the front panel. The meter has a built-in internal standard of 94 dB/1 KHz. Use the following procedures to calibrate the instrument before operating for the first time, or when the meter has not been in use for awhile. Internal Calibration:      Slide the POWER (6) selector to the CAL. Position. Slide the RANGE (5) selector to the 60 ~ 100 dB position. Slide the TIME WEIGHTING (7) selector to "F".
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. FREQUENCY WEIGHTING (A and C) CHARACTERISTICS Frequency A Weighting C Weighting Tolerance (IEC 61672 Class 1) Tolerance (ANSI S1.43 Type 1) 31.5 Hz -39.4 dB -3 dB ± 2.0 dB ± 1.5 dB 63 Hz -26.2 dB -0.8 dB ± 1.5 dB ± 1.0 dB 125 Hz -16.1 dB -0.2 dB ± 1.5 dB ± 1.0 dB 250 Hz -8.6 dB 0 dB ± 1.4 dB ± 1.0 dB 500 Hz -3.2 dB 0 dB ± 1.4 dB ± 1.0 dB 1 kHz 0 dB 0 dB ± 1.1 dB ± 1.0 dB 2 kHz +1.2 dB -0.2 dB ± 1.6 dB ± 1.0 dB 4 kHz +1 dB -0.8 dB ± 1.6 dB ± 1.0 dB 8 kHz -1.
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8. SPECIFICATIONS Display Function Measurement Range 18 mm (.0.7") LCD 3¼ digits dB ( A and C Frequency weighting), Time weighting (Fast, Slow), Max. hold, AC Output 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.
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9. WARRANTY Sper Scientific warrants this product against defects in materials and workmanship for a period of five (5) years from the date of purchase, and agrees to repair or replace any defective unit without charge. If your model has since been discontinued, an equivalent Sper Scientific product will be substituted if available. This warranty does not cover probes, batteries or damage resulting from accident, misuse, or abuse of the product.