1. تعارف ۽ پراڊڪٽ ختمview
The Apera Instruments EC820 Benchtop Conductivity Meter is a high-precision instrument designed for accurate measurement of Conductivity (EC), Total Dissolved Solids (TDS), Salinity, Resistivity, and temperature. This meter is equipped with advanced features for reliable and stable readings across a wide range of applications.
This manual provides detailed instructions for the proper setup, operation, maintenance, and troubleshooting of your EC820 meter to ensure optimal performance and longevity.
Figure 1: Apera Instruments EC820 Benchtop Conductivity Meter Kit. The image shows the main meter unit, a flexible electrode arm and holder, and the conductivity electrode submerged in a beaker of liquid.
2. حفاظتي احتياط
- Always handle the meter and electrodes with care to prevent damage.
- Do not immerse the main meter unit in water. The unit is IP54 water-resistant, but not submersible.
- صرف مهيا ڪيل پاور اڊاپٽر استعمال ڪريو.
- ڪيليبريشن حل ۽ ايس رکوamples away from children and pets. Follow safety data sheets (SDS) for handling specific chemicals.
- Ensure the meter is placed on a stable, level surface during operation.
- صفائي يا سار سنڀال ڪرڻ کان اڳ بجلي بند ڪريو.
3. پيڪيج مواد
پڪ ڪريو ته هيٺ ڏنل سڀئي شيون توهان جي پيڪيج ۾ موجود آهن:
- EC820 Precision Benchtop Conductivity Meter
- 2401T-F Platinum Glass-body Conductivity Electrode
- Flexible Electrode Arm and Holder
- USB ڪيبل
- PC-Link Software Flash Drive
- Power Adaptor (Input: 120V AC 60Hz; Output: 9V 300mA)
- Calibration Solutions:
- 84 µS/cm (1 vial)
- 1413 µS/cm (1 vial)
- 12.88 mS/cm (1 vial)
Figure 2: The 2401T-F Platinum Glass-body Conductivity Electrode, showing its connection cables.
4. سيٽ اپ
- Unpack the Meter: احتياط سان پيڪنگنگ مان سڀني اجزاء کي هٽايو.
- Assemble Electrode Arm: Attach the flexible electrode arm to the meter unit. Ensure it is securely fastened.
- Connect Electrode: Plug the 2401T-F Conductivity Electrode into the designated "COND" port on the back of the meter. Ensure the connection is firm.
Figure 3: Rear panel of the EC820 meter, highlighting the "COND" and "TEMP" ports, along with RS232 and DC 9V power input.
- پاور Connectنيو: Plug the power adapter into the "DC 9V" port on the back of the meter, then connect it to a standard 120V AC 60Hz power outlet.
- شروعاتي پاور آن: Press the power button to turn on the meter. The LCD display should illuminate.
5. آپريٽنگ هدايتون
5.1. حساب ڪتاب
The EC820 meter features 1 to 4 points auto-calibration. Regular calibration ensures accurate measurements.
- Prepare Solutions: Use the provided 84 µS/cm, 1413 µS/cm, and 12.88 mS/cm calibration solutions. Ensure solutions are at room temperature.
- اليڪٽروڊ کي ڌوئڻ: Rinse the conductivity electrode thoroughly with distilled or deionized water before and after each measurement or calibration. Gently blot dry with a lint-free tissue.
- ڪيليبريشن موڊ ۾ داخل ٿيو: With the meter on, press the CAL button. The display will show "CAL" and prompt for the first calibration point.
- First Point Calibration: Immerse the electrode into the 1413 µS/cm standard solution. Wait for the reading to stabilize (indicated by a stable icon on the display). The meter will automatically recognize the solution. Press داخل ڪريو تصديق ڪرڻ.
- Subsequent Points (Optional): For higher accuracy, proceed with 84 µS/cm and 12.88 mS/cm solutions following the same procedure. The meter will guide you through the process.
- Exit Calibration: After completing desired calibration points, press the MEAS button to return to measurement mode.
نوٽ: The meter has a self-diagnosis function to help identify and fix common calibration problems. Refer to the on-screen prompts.
5.2. ماپ
- اليڪٽروڊ کي ڌوئڻ: اليڪٽرروڊ کي آلوده پاڻي سان ڌوء.
- Immerse Electrode: اليڪٽرروڊ کي ايس ۾ وجھوampلي حل، يقيني بڻائڻ ته سينسر مڪمل طور تي ٻڏي ويو آهي.
- Wait for Stability: Allow the reading to stabilize. The stable reading icon will appear on the LCD.
- رڪارڊ پڙهڻ: Read the Conductivity (EC), TDS, Salinity, or Resistivity value displayed on the large LCD. Temperature will also be displayed simultaneously.
- يونٽ تبديل ڪريو: کي دٻايو يونٽ button to cycle through different measurement units (e.g., µS/cm, mS/cm, ppm, ppt).
- ڊيٽا اسٽوريج: The meter supports GLP data management with 500 groups of data storage. Use the M+ / R-M buttons to store and recall data.
- ڊيٽا برآمد: Connect the meter to a PC via the USB cable and use the provided PC-Link software (Windows-based system only) to export data.
6. سار سنڀال
- اليڪٽرروڊ صاف ڪرڻ:
- Regularly rinse the electrode with distilled or deionized water.
- For stubborn deposits, refer to the electrode's specific cleaning instructions. Generally, a mild detergent solution or a specific electrode cleaning solution can be used, followed by thorough rinsing.
- Do not scratch or damage the platinum black sensor.
- اليڪٽرروڊ اسٽوريج:
- Always store the conductivity electrode in its protective cap filled with a proper electrode storage solution (e.g., 3M KCl solution or Apera Instruments storage solution). Never store dry.
- Meter Cleaning: Wipe the main meter unit with a clean, damp ڪپڙو. استعمال نه ڪريو abrasive cleaners يا solvents.
- سافٽ ويئر اپڊيٽ: Check the Apera Instruments website periodically for any software updates for the PC-Link software.
شڪل 4: بند اپ view of the platinum glass-body conductivity electrode tip, which requires careful handling and proper storage.
7. مسئلا حل ڪرڻ
| مسئلو | ممڪن سبب | حل |
|---|---|---|
| ميٽر چالو نٿو ٿئي | بجلي جي فراهمي ناهي؛ ناقص اڊاپٽر؛ ڍلو ڪنيڪشن. | Check power adapter connection and outlet. Ensure adapter is functional. |
| اڻ پڙهيل پڙهڻ | Dirty electrode; air bubbles on sensor; incorrect calibration; temperature fluctuations. | Clean electrode; gently tap electrode to remove bubbles; recalibrate meter; ensure sample temperature is stable. |
| حساب ڪتاب جي غلطي | Contaminated calibration solution; incorrect solution used; damaged electrode. | Use fresh calibration solutions; ensure correct solution for calibration point; inspect electrode for damage. |
| No data transfer to PC | Incorrect USB connection; software not installed or running; driver issues. | Verify USB cable connection; ensure PC-Link software is installed and open; check device manager for driver issues. |
8. وضاحتون
| پيرا ميٽر | قدر |
|---|---|
| ماڊل نمبر | اي 532 |
| ماپ جا پيرا ميٽر | Conductivity (EC), TDS, Salinity, Resistivity, Temperature |
| ڪارڪردگي جي حد | 0 to 2,000 mS |
| درستگي | ±0.5% FS |
| Calibration پوائنٽس | 1 to 4 points auto-calibration (84µS/cm, 1413µS/cm, 12.88mS/cm, 111.8mS/cm) |
| درجه حرارت معاوضو | خودڪار حرارت جي معاوضي (اي ٽي سي) |
| ڊيٽا اسٽوريج | 500 groups (GLP compliant) |
| رابطي | USB for PC data export |
| ڊسپلي جو قسم | وڏي بليٽ ايل سي ڊي |
| بجلي جي فراهمي | 9V DC, 300mA (120V AC 60Hz adapter included) |
| داخل ٿيڻ جي حفاظت | IP54 پاڻي جي مزاحمتي |
| سرٽيفڪيشن | CE, RoHS, ISO 9001:2015 |
| پيڪيج جي ماپ | 10.63 x 9.88 x 6.61 انچ |
| وزن | 6.5 پائونڊ |
9. وارنٽي ۽ سپورٽ
Apera Instruments products are manufactured under an ISO 9001:2015 certified quality system, ensuring high standards of quality and reliability. For specific warranty information and technical support, please refer to the warranty card included with your product or visit the official Apera Instruments webسائيٽ.
For assistance with troubleshooting, calibration, or general inquiries, please contact Apera Instruments customer service. Contact details can typically be found on their official webسائيٽ يا پيداوار جي پيڪنگنگ ۾.
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