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

1. تعارف

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. پروڈکٹ ختمview

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.

2.1 اجزاء اور ڈسپلے

Figure 2: Labeled Diagram of the SLM-267

• Electret Condenser Microphone: Captures sound. Use the included windscreen to reduce wind interference.
• LCD ڈسپلے: 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.
• MIN/MAX بٹن: Toggles between current, minimum, and maximum sound level readings.
• ہولڈ بٹن: ڈسپلے پر موجودہ پیمائش کو منجمد کرتا ہے۔
• تپائی پہاڑ: A 1/4-inch screw hole for mounting on a tripod (tripod not included).
• بیٹری کور: Located on the back for battery installation.

Figure 3: Microphone with Windscreen

3. سیٹ اپ

3.1 بیٹری کی تنصیب

1. ڈیوائس کے پچھلے حصے میں بیٹری کور تلاش کریں۔
2. بیٹری کور کو کھولنے کے لیے اسے نیچے کی طرف سلائیڈ کریں۔
3. Insert three (3) AAA 1.5V batteries, ensuring correct polarity (+/-) as indicated inside the compartment.
4. بیٹری کور کو واپس اپنی جگہ پر سلائیڈ کریں جب تک کہ یہ محفوظ طریقے سے کلک نہ کرے۔

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. آپریٹنگ ہدایات

4.1 پاور آن/آف

• پاور آن کرنے کے لیے: دبائیں پاور/بیک لائٹ button once. The display will light up and begin showing real-time measurements.
• پاور آف کرنا: دیر تک دبائیں پاور/بیک لائٹ تقریبا 2 سیکنڈ کے لئے بٹن.

4.2 بیک لائٹ کنٹرول

• جب ڈیوائس آن ہو، دبائیں۔ پاور/بیک لائٹ button briefly to toggle the display backlight on or off.

Figure 5: Backlit Display for improved visibility.

4.3 Mode Selection (MIN/MAX)

• دبائیں MIN / MAX 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 ڈیٹا ہولڈ فنکشن

• دبائیں پکڑو button to freeze the current measurement on the display. The "HOLD" indicator will appear.
• دبائیں پکڑو 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 پکڑو موڈ، دیر تک دبائیں پاور/بیک لائٹ button for 2 seconds. Use the left and right buttons (MIN/MAX and HOLD) to adjust the setting value. Press the پاور/بیک لائٹ button again to confirm and exit the setting.

4.6 خودکار شٹ ڈاؤن

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

5 پیمائش کا طریقہ کار

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 6: درخواستوں کی وسیع رینج

6. وضاحتیں

شکل 7: کلیدی تفصیلات

Figure 8: Device Dimensions and Weight

7 دیکھ بھال

• Keep the device clean and dry. Avoid exposure to extreme temperatures, humidity, or direct sunlight.
• آلے کو نہ گرائیں اور نہ ہی اس کو سخت اثرات سے دوچار کریں۔
• When not in use for extended periods, remove the batteries to prevent leakage and damage.
• باہر کو نرم، خشک کپڑے سے صاف کریں۔ کھرچنے والے کلینر یا سالوینٹس کا استعمال نہ کریں۔
• Ensure the windscreen is properly fitted over the microphone to protect it from dust and debris.

8 خرابیوں کا سراغ لگانا

• ڈیوائس آن نہیں ہے: Check if the batteries are installed correctly with the right polarity. Ensure batteries are not depleted and replace if necessary.
• غلط پڑھنا: 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.
• ڈسپلے مدھم یا ٹمٹماہٹ ہے: 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. وارنٹی اور سپورٹ

For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official GAIN EXPRESS webسائٹ وارنٹی دعووں کے لیے خریداری کے ثبوت کے طور پر اپنی خریداری کی رسید رکھیں۔