Walfront MESTEK SL620 Sound Level Meter User Manual

1. Baigėsiview

The Walfront MESTEK SL620 is a digital sound level meter designed for measuring noise levels in various environments. It features a wide measurement range, a clear LCD backlight display, and functions for data retention, minimum/maximum value tracking, and automatic shutdown. This device is suitable for quality control in factories, offices, homes, schools, and construction sites.

Pagrindinės funkcijos:

• Measurement range of 35 to 135 dB.
• LCD display with backlight for clear readings.
• Data hold, MIN/MAX value tracking.
• Automatic and manual power-off options.

2. Saugos informacija

Prieš naudodami įrenginį, perskaitykite ir supraskite visas saugos instrukcijas. Nesilaikant šių instrukcijų, galite susižaloti arba sugadinti įrenginį.

• Nebandykite atidaryti ar modifikuoti įrenginio. Viduje nėra dalių, kurias galėtų aptarnauti vartotojas.
• Saugokite įrenginį nuo vandens, drėgmės ir ekstremalių temperatūrų.
• Use only the specified battery type (3 x 1.5V AAA). Ensure correct polarity during installation.
• Jei prietaisas ilgesnį laiką nebus naudojamas, išimkite baterijas, kad išvengtumėte elektrolito pratekėjimo.
• Saugokitės, kad prietaisas nenukristų ir nepatirtų stipraus smūgio.
• Prietaisą valykite minkštu, sausu skudurėliu. Nenaudokite abrazyvinių valiklių ar tirpiklių.

3. Product Components and Layout

Familiarize yourself with the different parts of your sound level meter:

Figure 3.1: Labeled diagram of the MESTEK SL620 Sound Level Meter, showing the microphone, display screen, data retention/backlight button, function switch button, time-weighted switching button, and on/off button.

Figure 3.2: The MESTEK SL620 Sound Level Meter with its approximate dimensions: 150mm length, 55mm width, and 30mm height.

Figure 3.3: Close-up of the device's microphone, protected by a foam windscreen.

4. Sąranka

4.1 Akumuliatoriaus įdėjimas

1. Suraskite baterijų skyriaus dangtelį įrenginio gale.
2. Norėdami atidaryti skyrių, pastumkite arba atkabinkite dangtelį.
3. Įdėkite tris (3) 1.5 V AAA baterijas, užtikrindami teisingą poliškumą (+/-), kaip nurodyta skyriaus viduje.
4. Saugiai uždėkite akumuliatoriaus skyriaus dangtelį.

4.1 pav.: galinis view of the sound level meter, showing the battery compartment where three AAA batteries are installed.

5. Naudojimo instrukcijos

5.1 Įjungimas / išjungimas

• Norėdami įjungti įrenginį, paspauskite Įjungta/Išjungta mygtuką.
• Norėdami išjungti įrenginį, paspauskite ir palaikykite Įjungta/Išjungta button for a few seconds. The device also features an automatic shutdown function to conserve battery power.

5.2 Matavimo atlikimas

1. Turn on the device. The current sound level will be displayed on the LCD screen.
2. Position the microphone towards the sound source you wish to measure.
3. Read the decibel (dB) value displayed on the screen.

Figure 5.1: The sound level meter held in hand, showing a reading of 60.8 dBA on its LCD screen.

5.3 Funkcijos mygtukai

• UNITS Button: Press to switch between different measurement units or modes if available (e.g., dBA, dBC). For this model, it primarily controls time weighting.
• SEL mygtukas: This button is used for selecting functions or confirming settings.
• MIN/MAX mygtukas: Press this button to cycle through current, minimum, and maximum recorded sound levels.
• Duomenų laikymo / foninio apšvietimo mygtukas: A dedicated button (often on the side or labeled 'H/BL') allows you to hold the current reading on the display. Pressing it again may release the hold. Long-pressing this button typically activates or deactivates the display backlight.

5.4 Laiko svertinis įvertinimas (GREITAS/LĖTAS)

The device supports two time weighting modes:

• FAST (125 ms): Used for measuring rapidly changing noise levels. This is the default setting.
• LĖTAI (1 sekundė): Used for measuring average noise levels where the sound value changes significantly.

To switch between FAST and SLOW modes, use the designated button (often labeled 'F/S' or integrated with 'UNITS').

5.5 Frequency Weighting (A-Weighting)

The MESTEK SL620 uses A-weighting (A characteristic) for its measurements. A-weighting is commonly used for environmental noise measurements and is designed to approximate the human ear's response to sound.

6. Priežiūra

6.1 Valymas

Wipe the device with a soft, dry cloth. Do not use liquid cleaners, solvents, or abrasive materials, as these can damage the casing arba vidiniai komponentai.

6.2 Saugykla

When not in use for extended periods, store the device in a cool, dry place, away from direct sunlight and extreme temperatures. Remove the batteries before storage to prevent potential leakage and damage.

6.3 Akumuliatoriaus keitimas

When the battery indicator appears on the display, replace all three AAA batteries promptly to ensure accurate measurements and proper device function. Refer to Section 4.1 for battery installation instructions.

7. Problemų sprendimas

If you encounter issues with your MESTEK SL620 Sound Level Meter, refer to the following common problems and solutions:

• Įrenginys neįsijungia:
  • Patikrinkite, ar baterijos įdėtos teisingai, tinkamu poliškumu.
  • Jei esamos baterijos išsikrovė, pakeiskite jas naujomis.
• Netikslūs rodmenys:
  • Įsitikinkite, kad mikrofonas švarus ir neuždengtas.
  • Verify that the device is not exposed to strong electromagnetic fields.
  • Patikrinkite baterijų lygį; žemas baterijų lygis gali turėti įtakos tikslumui.
• Ekranas blankus arba neveikia:
  • Patikrinkite akumuliatoriaus lygį ir, jei reikia, pakeiskite.
  • Ensure the backlight function is activated if operating in low light conditions.

Jei problema išlieka ir išbandžius šiuos sprendimus, susisiekite su klientų aptarnavimo tarnyba.

8. Specifikacijos

9. Garantija ir palaikymas

Specific warranty information for the Walfront MESTEK SL620 Sound Level Meter is not provided in this manual. Please refer to the product packaging or the retailer's webSvetainė, kurioje rasite informacijos apie garantiją.

For technical support or inquiries, please contact your point of purchase or the Walfront customer service department.