GAIN EXPRESS SLM-267 Small Digital Sound Level Meter User Manual

1. مقدمه

This manual provides detailed instructions for the proper use and maintenance of your GAIN EXPRESS SLM-267 Small Digital Sound Level Meter. Please read this manual thoroughly before operation to ensure accurate measurements and safe handling of the device. This device is designed for sound quality management in various environments.

Figure 1: GAIN EXPRESS SLM-267 Digital Sound Level Meter

2. محصول تمام شدview

The GAIN EXPRESS SLM-267 is a compact and portable digital sound level meter featuring a backlit LCD display for clear readings. It is equipped with functions for maximum/minimum value measurement, data hold, and automatic power-off to conserve battery life. A windscreen is included to minimize wind noise during outdoor measurements.

۲.۱ قطعات و نمایشگر

Figure 2: Labeled Diagram of the SLM-267

• میکروفون کندانسور الکترت: Captures sound. Use the included windscreen to reduce wind interference.
• نمایشگر LCD: Shows measurement values, battery level, mode indicators (HOLD, MIN, MAX, OVER), and units (dBA).
• Power/Backlight Button: Turns the device on/off and controls the display backlight.
• دکمه حداقل/حداکثر: Toggles between current, minimum, and maximum sound level readings.
• دکمه HOLD: اندازه‌گیری فعلی را روی صفحه نمایش ثابت می‌کند.
• کوه سه پایه: A 1/4-inch screw hole for mounting on a tripod (tripod not included).
• حفاظ باتری: در پشت برای نصب باتری قرار دارد.

Figure 3: Microphone with Windscreen

3. راه اندازی

3.1 نصب باتری

1. پوشش باتری را در پشت دستگاه پیدا کنید.
2. برای باز کردن، درپوش باتری را به سمت پایین بکشید.
3. Insert three (3) AAA 1.5V batteries, ensuring correct polarity (+/-) as indicated inside the compartment.
4. درپوش باتری را به جای خود بلغزانید تا محکم کلیک کند.

3.2 Tripod Mounting (Optional)

The device includes a 1/4-inch screw hole on the back for mounting onto a standard tripod. This can be useful for stable, long-term measurements or when hands-free operation is desired. Ensure the tripod is stable before mounting the device.

Figure 4: Tripod Mount

4. دستورالعمل های عملیاتی

4.1 روشن/خاموش

• روشن کردن: را فشار دهید برق/نور پس زمینه button once. The display will light up and begin showing real-time measurements.
• برای خاموش کردن: را طولانی فشار دهید برق/نور پس زمینه تقریباً 2 ثانیه را فشار دهید.

4.2 کنترل نور پس زمینه

• در حالی که دستگاه روشن است، دکمه را فشار دهید برق/نور پس زمینه button briefly to toggle the display backlight on or off.

Figure 5: Backlit Display for improved visibility.

4.3 Mode Selection (MIN/MAX)

• را فشار دهید حداقل / حداکثر button to cycle through measurement modes: Current Value → Minimum Value (MIN) → Maximum Value (MAX).
• The corresponding indicator (MIN or MAX) will appear on the display.

4.4 تابع نگه داشتن داده

• را فشار دهید نگه دارید button to freeze the current measurement on the display. The "HOLD" indicator will appear.
• را فشار دهید نگه دارید button again to release the data hold and resume real-time measurements.

4.5 Backlight Alarm Setting

• When the measured value exceeds a preset threshold, the backlight will flash as an alarm. The initial default threshold is 100dB.
• To adjust the alarm threshold: While in نگه دارید حالت، فشار طولانی مدت برق/نور پس زمینه button for 2 seconds. Use the left and right buttons (MIN/MAX and HOLD) to adjust the setting value. Press the برق/نور پس زمینه button again to confirm and exit the setting.

4.6 خاموش شدن خودکار

• The device will automatically power off after 10 minutes of inactivity to save battery.
• To disable automatic shutdown: Long press the برق/نور پس زمینه button for 3 seconds when turning on the device. The display will show "UOF" (User Off) to indicate that auto-shutdown is disabled.

5. روش اندازه گیری

To take a measurement, ensure the device is powered on and held in the desired measurement area. The display will show the real-time sound level in dBA. For accurate readings, ensure the microphone is pointed towards the sound source and is not obstructed.

5.1 Practical Applications

The GAIN EXPRESS SLM-267 is suitable for a wide range of applications, including:

• Environmental noise monitoring in factories, offices, and residential areas.
• Assessing noise levels in vehicles, schools, and theaters.
• Checking audio system performance.
• Monitoring noise on transportation routes and construction sites.
• General noise engineering and health prevention assessments.

شکل ۱۲: طیف گسترده کاربردها

6. مشخصات

شکل ۵: مشخصات کلیدی

شکل ۹.۱: ابعاد و وزن دستگاه

7. تعمیر و نگهداری

• Keep the device clean and dry. Avoid exposure to extreme temperatures, humidity, or direct sunlight.
• دستگاه را نیندازید و در معرض ضربه های شدید قرار ندهید.
• When not in use for extended periods, remove the batteries to prevent leakage and damage.
• قسمت بیرونی را با یک پارچه نرم و خشک تمیز کنید. از پاک کننده ها یا حلال های ساینده استفاده نکنید.
• Ensure the windscreen is properly fitted over the microphone to protect it from dust and debris.

8 عیب یابی

• دستگاه روشن نمی‌شود: Check if the batteries are installed correctly with the right polarity. Ensure batteries are not depleted and replace if necessary.
• قرائت‌های نادرست: Ensure the microphone is not obstructed and the windscreen is clean. Avoid measuring in strong wind without the windscreen. Check for any physical damage to the microphone.
• صفحه نمایش کم نور یا سوسو می‌زند: Replace batteries if the battery indicator shows low power. If the backlight is off, press the Power/Backlight button to turn it on.
• "OVER" displayed: The measured sound level exceeds the device's maximum range (130dBA). Move to a quieter environment or use a device with a higher measurement range.

9. گارانتی و پشتیبانی

For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official GAIN EXPRESS webرسید خرید خود را به عنوان مدرک خرید برای درخواست‌های گارانتی نگه دارید.