Sper scientific 840005 Manual de usuario

SOUND METER

840005

Instruction Manual

SPER

SCIENTIFIC

- 2 -

Introduction: Use to measure sound

levels in the workplace, environmental

noise pollution, QC inspection of

products, background sounds, traffic

and more. Uses the "A" decibel

frequency weighting. CE Approved.

Operating Procedures:

Sound Measurement: Set the DIAL

to either Lo or Hi and read your

results on the matching scale.

Battery Check: Set the dial to

BATT. If the reading is not in the

B. OK zone, replace the battery

with a new 9V battery.

Internal Calibration: Set the

DIAL to CAL and use a small

screwdriver to turn the CAL ADJ

calibration screw until the

indicator points to CAL 70 dB.

Tips on Measuring Sound:

From Objects: Place the meter 40”

from the source.

Traffic Sounds: Place the meter

40~60” above ground level.

Indoor Sounds: Place the meter in

the center of the room.

Intermittent Sounds: Record the

highest value at each occurrence

and compute the average.

Fluctuating Sound: Record

several measurements and

compute the average.

- 3 -

Panel Description:

1. SENSOR

2. LOW VALUE SCALE 40~80 dB

3. CAL 70 dB

4. BATTERY CHECK

5. HIGH VALUE SCALE 80~120dB

6. DIAL

7. CAL ADJ (calibration screw is located

inside the battery compartment)

OFF

CAL

BATT

OFF

CAL

- 4 -

Rev. 05/11/05

Dimensions 61/4 x 21/2 x 11/2"

16 x 6.4 x 4 cm

Weight

inc. battery 7.1 oz, 202 g

Ranges 40 ~ 80 dB, 80 ~ 120 dB

Microphone Capacitance

Accuracy ±3 dB

Calibration Signal Oscillator

Power One 9V battery

Specifications:

5 YEAR METER 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. In order to obtain

warranty service, simply ship the unit postage

prepaid to:

SPER SCIENTIFIC LTD.

7720 E Redfield, Suite 7, Scottsdale, AZ 85260,

480/948-4448, info@sperscientific.com

www.sperscientific.com

The defective unit must be accompanied by a

description of the problem and your return

address. Register your product online or return

your warranty card within 10 days of purchase.

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