REED ST-805 Manual de usuario

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Model ST-805

Sound Level Meter

Instruction

Manual

Pantone 534 Blue

Pantone 123 Yellow

Pantone 485 Red

Pantone 123 Yellow

Pantone 534 Blue

Black Rich Black -

20/20/20/100

Blue - 100/80/30/5

Yellow - 0/27/100/0

Red - 10/100/100/5

Yellow - 0/27/100/0

Blue - 100/80/30/5

Only if you REALLY need them:

Pantone 534 Blue - 100/80/30/5

Pantone 485 Red - 10/100/100/5

Pantone 123 Yellow - 0/27/100/

reedinstruments

www com

Pantone 534 Blue

Pantone 123 Yellow

Pantone 485 Red

Pantone 123 Yellow

Pantone 534 Blue

Black Rich Black -

20/20/20/100

Blue - 100/80/30/5

Yellow - 0/27/100/0

Red - 10/100/100/5

Yellow - 0/27/100/0

Blue - 100/80/30/5

Only if you REALLY need them:

Pantone 534 Blue - 100/80/30/5

Pantone 485 Red - 10/100/100/5

Pantone 123 Yellow - 0/27/100/

Table of Contents

Safety ............................................................................................ 2

Specications................................................................................ 3

Instrument Description...............................................................4-6

Operating Instructions................................................................6-7

Battery Replacement..................................................................... 7

Safety

Read the following safety information carefully before attempting to

operate or service this meter. Use this meter only as specied in this

manual; otherwise, its proper operation may be impaired.

• Altitude up to 2000 meters

• Relatively humidity up to 90% R.H. max.

• Ambient temperature: 0 to 40°C

• Repairs or servicing not covered in this manual should only be

performed by qualied personnel

• Periodically wipe the case with a dry cloth

• Do not use abrasives or solvents on this instrument

reedinstruments

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Pantone 534 Blue

Pantone 123 Yellow

Pantone 485 Red

Pantone 123 Yellow

Pantone 534 Blue

Black Rich Black -

20/20/20/100

Blue - 100/80/30/5

Yellow - 0/27/100/0

Red - 10/100/100/5

Yellow - 0/27/100/0

Blue - 100/80/30/5

Only if you REALLY need them:

Pantone 534 Blue - 100/80/30/5

Pantone 485 Red - 10/100/100/5

Pantone 123 Yellow - 0/27/100/

Specifications

Standard Applied: IEC651 type 2, ANSI S1.4 type 2

Frequency Range: 31.5Hz~8KHz

Measuring Level Range: 30~130 dB

Resolution: 0.1 dB

Accuracy: ±1.4 dB (under reference conditions)

Frequency Weighting: A & C

Time Weighting: Fast: 125mS: Slow: 1 sec.

Level Ranges: Lo: 30~100 dB; Hi: 60~130 dB

Display: 4-digit LCD

Display Update: 0.5 sec.

Alarm Function: “OVER” is show when input is out of range

Maximum Hold: Hold readings the Maximum Value, with decay

< 1dB/3minutes

Microphone: 1/2 inch electret condenser microphone

Calibration: Electrical calibration with the internal

oscillator (1kHz sine wave)

Auto Power Off: Meter automatically shuts down after approx.

15 minutes of inactivity

Operating Temperature: 0 to 40°C (32 to 104°F)

Operating Humidity: 10 to 90% RH

Storage Temperature: -10 to 60°C (14 to 140°F)

Storage Humidity: 10 to 75% RH

Power Supply: One 9V battery, 006P or IEC 6F22 or NEDA

1604 (included)

Battery Life: About 50 hrs. (alkaline battery)

Dimensions: 210 x 55 x 32mm (8.26 x 2.16 x 1.25”)

Weight: 230g (8.11oz) (including battery)

IIncludes: Batteries and carrying case

Optional Accessories: Tripod (model BS-6)

reedinstruments

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Pantone 534 Blue

Pantone 123 Yellow

Pantone 485 Red

Pantone 123 Yellow

Pantone 534 Blue

Black Rich Black -

20/20/20/100

Blue - 100/80/30/5

Yellow - 0/27/100/0

Red - 10/100/100/5

Yellow - 0/27/100/0

Blue - 100/80/30/5

Only if you REALLY need them:

Pantone 534 Blue - 100/80/30/5

Pantone 485 Red - 10/100/100/5

Pantone 123 Yellow - 0/27/100/

Instrument Description

reedinstruments

www com

Pantone 534 Blue

Pantone 123 Yellow

Pantone 485 Red

Pantone 123 Yellow

Pantone 534 Blue

Black Rich Black -

20/20/20/100

Blue - 100/80/30/5

Yellow - 0/27/100/0

Red - 10/100/100/5

Yellow - 0/27/100/0

Blue - 100/80/30/5

Only if you REALLY need them:

Pantone 534 Blue - 100/80/30/5

Pantone 485 Red - 10/100/100/5

Pantone 123 Yellow - 0/27/100/

1. Windscreen

If you operate at wind speeds over 10m/sec, please put protective

accessories in front of the microphone.

2. Display

3. Power ON/OFF Button

Turn the meter power ON/OFF

4. Backlight Button

Turn the display backlight ON/OFF

5. A-Weighting/C-Weighting Select Button A/C

A: A-Weighting. For general sound level measurements.

C: C-Weighting. For checking the low frequency content of noise.

(If the C-Weighted level is much higher than the A-Weighted level,

then there is a large amount of low-frequency noise)

6. Time Weighting Select Button F/S

F(Fast Response): For normal measurements (fast varying noise)

S(Slow Response): For checking average level of uctuating noise

7. Level Range Select Button

Lo/Hi

LO: 30~100dB; HI: 60~130dB

When “OVER” is indicated, the meter automatically switches to the

other measurement range.

SYMBOL FUNCTION

LCD 4-digits

MAX Max. value hold

OVER Over range

F Fast response

S Slow response

A A-weighting

C C-weighting

LO Low range

HI High range

BAT Low battery

reedinstruments

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Pantone 534 Blue

Pantone 123 Yellow

Pantone 485 Red

Pantone 123 Yellow

Pantone 534 Blue

Black Rich Black -

20/20/20/100

Blue - 100/80/30/5

Yellow - 0/27/100/0

Red - 10/100/100/5

Yellow - 0/27/100/0

Blue - 100/80/30/5

Only if you REALLY need them:

Pantone 534 Blue - 100/80/30/5

Pantone 485 Red - 10/100/100/5

Pantone 123 Yellow - 0/27/100/

8. MAX/HOLD Button

MAX/HOLD

The MAX Hold position is used to measure the maximum level of

sounds. The maximum measured level is updated continuously.

Pressing the button a second time will release the maximum hold

function and allow another measurement.

The Data HOLD function freezes the reading on the display.

Data HOLD Button: Press and hold the button for 2 seconds to turn

the Data HOLD function on or off.

9. Microphone

1/2-inch electret condenser microphone

10. Battery Cover

Operating Instructions

Notes

• Wind blowing across the microphone will bring additional

extraneous noise. If using the instrument in the presence of wind, it is

recommended to put the windscreen on the microphone so as not to

pick up undesirable signals.

• To achieve more accurate measurements, use an extension cable

to separate the microphone from the main body so that the effect of

unexpected sound reection can be eliminated.

• Calibrate the instrument before operation if the instrument has not

been in use for a long period of time or was last operated under

extreme conditions.

• Do not store or operate the instrument in high temperature and high

humidity environments.

• Keep microphone dry and avoid severe vibrations.

• When not in use, please take the battery out and keep the instrument

in a low humidity environment.

reedinstruments

www com

Pantone 534 Blue

Pantone 123 Yellow

Pantone 485 Red

Pantone 123 Yellow

Pantone 534 Blue

Black Rich Black -

20/20/20/100

Blue - 100/80/30/5

Yellow - 0/27/100/0

Red - 10/100/100/5

Yellow - 0/27/100/0

Blue - 100/80/30/5

Only if you REALLY need them:

Pantone 534 Blue - 100/80/30/5

Pantone 485 Red - 10/100/100/5

Pantone 123 Yellow - 0/27/100/

Measurement Procedures

1. Turn on power and select the desired response time and

weighting. If the sound source consists of short bursts or only

catching sound peak, set response to FAST. To measure

average sound, use the SLOW setting. Select A-weighting for

general noise sound level and C-weighting for measuring sound

level of acoustic material.

2. Select desired level.

3. Hold the instrument comfortably in hand or x on a tripod and

point the microphone at the suspected noise source, the sound

pressure level will be displayed.

4. When MAX (maximum hold) mode is chosen. The instrument

captures and holds the maximum noise level for a long period

using any of the time weightings and ranges.

5. When HOLD (data hold) mode is chosen.The hold function freezes

the reading in the display. Press the HOLD button momentarily to

activate or to exit the HOLD function.

6. Turn OFF the instrument and remove and remove battery when

not in use.

Battery Replacement

1. Battery Loading: Open the battery cover and install a 9-Volt

battery in the battery compartment.

2. Battery Replacement: When the battery voltage drops below the

operating voltage, “BAT” appears in the display and the existing

battery should be replaced with a new one.

For service on this or any other REED product or information on other

REED products, contact REED Instruments at [email protected]

reedinstruments

www com

Pantone 534 Blue

Pantone 123 Yellow

Pantone 485 Red

Pantone 123 Yellow

Pantone 534 Blue

Black Rich Black -

20/20/20/100

Blue - 100/80/30/5

Yellow - 0/27/100/0

Red - 10/100/100/5

Yellow - 0/27/100/0

Blue - 100/80/30/5

Only if you REALLY need them:

Pantone 534 Blue - 100/80/30/5

Pantone 485 Red - 10/100/100/5

Pantone 123 Yellow - 0/27/100/

Notes _________________________________________

________________________________________________

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