Sper scientific 840005 Manuale utente

Sound Meter

840005

Instruction

Manual

INTRODUCTION:

Use to measure sound levels in

the workplace, environmental

noise pollution, QC inspection of

products, background sounds,

tra󰀩c 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.

TIPSONMEASURINGSOUND:

• From Objects: Place the meter

40" from the source.

• Tra󰀩c Sounds: Place the me-

ter 40~60" above ground level.

• Indoor Sounds: Place the me-

ter in the center of the room.

• Intermittent Sounds: Record

the highest value at each oc-

currence and compute the avg.

• Fluctuating Sound: Record

several measurements and

compute the average.

PANELDESCRIPTION:

1. Sensor

2. Low Value Scale (40~80 db)

3. High Value Scale (80~120 db)

4. CAL 70 db

5. Battery Check

6. Dial

7. CAL ADJ (calibration screw is

located inside the battery compart-

ment, on the back of the meter)

Dimensions 6.25" x 2.5" x 1.5"

16 x 6.4 x 4 cm

Weight

(inc. battery)

7.1 oz (202 g)

Ranges low: 40 to 80 dB

high: 80 to 120 dB

Microphone Capacitance

Accuracy ±3 dB

Calibration Signal Oscillator

Power One 9V battery

SPECIFICATIONS:

WARRANTY:

Sper Scientic warrants this product

against defects in materials and

workmanship for ve (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 Scientic product will

be substituted if available. This warranty

does not cover damage resulting from

accident, misuse, or abuse of the product.

To obtain warranty service, ship

the unit postage prepaid to:

SPER SCIENTIFIC LTD.

8281 East Evans Road, Suite #103

Scottsdale, AZ 85260

The defective unit must be accompanied

by a description of the problem and your

return address. Register your product

online at www.sperwarranty.com within 10

days of purchase.

Rev 6/30/2017

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