Sper scientific 840015 Bedienungsanleitung

TYPE 1 Sound Meter

840015

Instruction Manual

CONTENTS

1. Introduction.............................................................................. 3

2. Panel Description..................................................................... 3

3. Operating Instructions ............................................................. 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

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

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. The "A" frequency weighting simulates human ear response.

During an environmental sound level measurement, select the "A"

weighting. The "C" weighting approximates a flat response. Typically,

"C" is used to check the noise of machinery where the target sound level

is already known. (See Frequency Weighting Characteristics, page 6.)

 Slide the TIME WEIGHTING (7) selector to the "F" (fast) or "S" (slow)

position. For 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 decibels (dB).

 When finished, slide the POWER (6) selector to the "O" (off) position.

3-B. General Application Settings

 Set POWER / CALIBRATION (6) selector to "I" (on).

 Set TIME WEIGHTING (7) to "F".

 Set MAX HOLD / INSTANT (8) selector to INSTANT.

 Set FREQUENCY WEIGHTING (11) to "A".

 Set RANGE (5) selector to the appropriate range.

3-C. Signal Output

The 3.5 mm diameter SIGNAL OUTPUT (12) terminal may be used to

connect the unit to an external device (analyzer, recorder, controller, etc).

3-D. Precautions

 Do not store or operate the unit in high temperatures or in a high

humidity environment for long periods.

 Keep the microphone dry and avoid intense vibrations.

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".

 Slide the FREQUENCY WEIGHTING (11) selector to "A".

 Use the calibration screw driver to turn the CALIBRATION

ADJUSTMENT (9) 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 "F".

 Slide the FREQUENCY WEIGHTING (11) selector to "A".

 Use the calibration screw driver to turn the CALIBRATION

ADJUSTMENT (9) until the display reads 94.0.

5. BATTERY REPLACEMENT

Replace the batteries when "BAT" is displayed. Accurate measurements

may be made for several hours after the low battery indicator appears.

Replace the batteries with 2 new heavy duty 9V batteries.

Frequency A Weighting C Weighting Tolerance

(IEC 61672

Class 1)

31.5 Hz -39.4 dB -3 dB ± 2.0 dB

63 Hz -26.2 dB -0.8 dB ± 1.5 dB

125 Hz -16.1 dB -0.2 dB ± 1.5 dB

250 Hz -8.6 dB 0 dB ± 1.4 dB

500 Hz -3.2 dB 0 dB ± 1.4 dB

1 kHz 0 dB 0 dB ± 1.1 dB

2 kHz +1.2 dB -0.2 dB ± 1.6 dB

4 kHz +1 dB -0.8 dB ± 1.6 dB

8 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

+1.5 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

Tested with signal on 1000 Hz/94 dB.

7. TIME WEIGHTING (Fast and Slow) CHARACTERISTICS

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

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. 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.sperscientific.com or return

your warranty registration card within ten (10) days of purchase.

Rev. 1/09/12

9. WARRANTY

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