1. تعارف
This manual provides instructions for the proper setup, operation, and maintenance of the Apera Instruments MP511 Benchtop pH Meter. The MP511 is designed for accurate pH measurements with a range of -2.00 to 19.99 pH and an accuracy of ±0.01 pH. It features automatic temperature compensation (ATC), auto-calibration with buffer recognition, and advanced digital filtering technology for improved response time and accuracy. The meter also includes GLP standard data management, storage for 500 data sets, and RS232 data output.
2. پيڪيج مواد
پڪ ڪريو ته پيڪنگ ڪرڻ وقت سڀئي جزا موجود آهن:
- MP511 Benchtop pH Meter Unit
- 3-in-1 Combination pH Electrode
- Flexible Electrode Holder
- RS232 Software (typically on a CD or available for download)
- پاور اڊاپٽر
- pH Buffer Solutions (e.g., pH 4.00, 7.00, 10.01)
- ھدايت وارو دستور
3. سيٽ اپ
- Assemble the Electrode Holder: Attach the flexible electrode holder to the meter base. Ensure it is securely fastened to provide stable support for the electrode.
- Connect the Electrode: Plug the BNC connector of the 3-in-1 combination pH electrode into the pH/mV input port on the back of the meter. If a separate temperature probe is used, connect it to the TEMP port.
- پاور Connectنيو: Plug the DC 9V power adapter into the DC 9V port on the back of the meter and then into a standard electrical outlet.
- شروعاتي جڳھ: Place the electrode in its storage solution or a beaker of distilled water when not in use.

شڪل 3.1: The Apera Instruments MP511 Benchtop pH Meter with its electrode immersed in a sample solution within a beaker, demonstrating a typical setup for pH measurement. The flexible electrode holder is visible, supporting the electrode.
4. آپريشن
- پاور آن / آف: کي دٻايو آن/بند ميٽر کي آن يا آف ڪرڻ لاءِ بٽڻ.
- موڊ جي چونڊ: کي دٻايو موڊ button to cycle through different measurement modes (pH, mV, temperature).
- يونٽ جي چونڊ: کي دٻايو يونٽ button to change temperature units between °C and °F.
- Data Storage/Recall: استعمال ڪريو M+/RM button to store current readings or recall previously stored data.
- تصديق ڪريو/داخل ڪريو: جي داخل ڪريو button is used to confirm selections or enter calibration mode.

شڪل 4.1: هڪ تفصيلي view of the MP511 meter's LCD display and control panel, showing the CAL, ON/OFF, M+/RM, MODE, ENTER, and UNIT buttons. The display shows pH and temperature readings.
5. حساب ڪتاب
Regular calibration is essential for accurate pH measurements. The MP511 features automatic calibration with buffer recognition.
- Prepare Buffers: Ensure you have fresh pH buffer solutions (e.g., pH 4.00, 7.00, 10.01) at room temperature.
- اليڪٽروڊ کي ڌوئڻ: Rinse the electrode thoroughly with distilled water and gently blot dry with a lint-free tissue.
- ڪيليبريشن موڊ ۾ داخل ٿيو: With the meter powered on and in pH mode, press the CAL button. The display will indicate calibration mode.
- First Buffer Calibration: Immerse the electrode into the first buffer solution (e.g., pH 7.00). The meter will automatically recognize the buffer and stabilize. Press داخل ڪريو تصديق ڪرڻ.
- Subsequent Buffer Calibration: Rinse the electrode again. Immerse it into the next buffer solution (e.g., pH 4.00 or pH 10.01). The meter will recognize and stabilize. Press داخل ڪريو to confirm. Repeat for additional buffer points as needed.
- Exit Calibration: After completing all desired calibration points, the meter will automatically return to measurement mode or prompt to save calibration.
6. ماپ جا طريقا
The MP511 offers three distinct measurement modes:
- Stable Measurement Display Mode: Displays the pH reading once it has stabilized. This is the standard mode for most measurements.
- Timing Measuring Mode: Allows for measurements at set intervals, useful for monitoring changes over time.
- مسلسل ماپنگ موڊ: Provides real-time, continuous pH readings, suitable for dynamic processes.
Refer to the detailed instructions in the full manual for specific steps on how to select and configure each measurement mode.
7. ڊيٽا جو انتظام
The MP511 incorporates GLP (Good Laboratory Practice) standard data management features:
- ڊيٽا اسٽوريج: The meter can store up to 500 sets of measurement data.
- اسٽوريج جا طريقا: Data can be stored manually or automatically at user-defined timing intervals.
- ڊيٽا آئوٽ پٽ: An RS232 port is provided for connecting the meter to a computer to transfer stored data using the included software.

شڪل 7.1: The rear panel of the MP511 meter, displaying the REF, pH/mV, TEMP, RS232, and DC 9V input ports. The RS232 port facilitates data transfer to a computer.
8. سار سنڀال
Proper maintenance ensures the longevity and accuracy of your pH meter.
- اليڪٽروڊ جي سنڀال:
- Always keep the electrode bulb immersed in storage solution when not in use. Never store it dry.
- Rinse the electrode with distilled water before and after each measurement.
- Clean the electrode regularly according to the electrode's specific cleaning instructions, especially if readings become sluggish or inaccurate.
- Meter Cleaning: The MP511 meter unit meets IP54 waterproof and dustproof standards. Clean the exterior with a damp ڪپڙو. سخت ڪيميائي يا ٻرندڙ مواد استعمال ڪرڻ کان پاسو ڪريو.
- طاقت جو ذريعو: The meter is battery-powered (though also uses a DC 9V adapter). Ensure the power adapter is used correctly. If using internal batteries, replace them as needed.
9. مسئلا حل ڪرڻ
| مسئلو | ممڪن سبب | حل |
|---|---|---|
| اڻ پڙهيل پڙهڻ | Dirty electrode; air bubbles; insufficient sample volume; electromagnetic interference | Clean electrode; gently tap electrode to remove bubbles; ensure adequate sample; move meter away from interference sources |
| حساب ڪتاب جي غلطي | Expired or contaminated buffer solutions; dirty electrode; incorrect buffer sequence | Use fresh buffer solutions; clean electrode; ensure correct buffer order (e.g., 7.00 first) |
| No display/Power issue | Power adapter not connected; faulty power adapter; internal battery depletion | Check power connection; try a different outlet; replace internal batteries if applicable |
| سست جوابي وقت | Electrode dry or contaminated; old electrode | Rehydrate electrode in storage solution; clean electrode; consider electrode replacement |
10. وضاحتون
| پيرا ميٽر | قدر |
|---|---|
| ماڊل نمبر | AI511 (MP511) |
| پي ايڇ جي حد | -2.00 کان 19.99 پي ايڇ |
| پي ايڇ جي درستگي | ±0.01 پي ايڇ |
| درجه حرارت معاوضو | Automatic (ATC) |
| حساب ڪتاب | Auto Calibration with buffer recognition |
| ڊيٽا اسٽوريج | 500 data sets (manual/auto timing storage) |
| رابطي | RS232 |
| ڊسپلي جو قسم | نيري backlight سان LCD |
| داخلا تحفظ (IP) جي درجه بندي | IP54 (پاڻيروڪ ۽ ڊسٽ پروف) |
| پيداوار جي ماپ | 19.05 x 16 x 7.11 سينٽي |
| پيداوار جو وزن | 878.84 جي |
| طاقت جو ذريعو | Battery Powered (with DC 9V adapter) |
| ٺاهيندڙ | Shanghai Sanxin Instrumentation |
11. وارنٽي ۽ سپورٽ
For warranty information, technical support, or service inquiries, please contact Apera Instruments directly through their official webسائيٽ يا ڪسٽمر سروس چينلز. خريداري جي ثبوت طور پنهنجي خريداري جي رسيد رکو.





