Apera Instruments PH820 Benchtop pH Meter Kit

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The Apera Instruments PH820 Benchtop pH Meter Kit is designed for reliable and accurate pH measurements in laboratory settings. It features advanced functionalities including intelligent calibration, data management, and a durable, water-resistant structure. This manual provides detailed instructions for proper use and care of your PH820 meter.

Figure 1: Apera Instruments PH820 Benchtop pH Meter Kit, showing the main unit, electrode, temperature probe, and electrode arm.

Key features of the PH820 include:

• Alta precisió: Achieves ±0.002 pH±1 digit precision.
• Premium Electrode: Equipped with the Swiss LabSen 211 Glass-body pH Electrode for stable and accurate measurements.
• Intelligent Calibration: Supports 1 to 5 points auto-calibration with calibration guide and reminder functions.
• Autodiagnòstic: Assists in identifying and resolving common calibration issues and monitors electrode health.
• Gestió de dades: GLP-compliant data storage for up to 500 groups with USB data output and PC software support.
• Disseny durador: IP54 water-resistant construction.

Configuració

Desembalatge i comprovació de components

Carefully unpack all components from the kit. Verify that the following items are present:

• PH820 pH Meter Unit
• Elèctrode de pH LabSen 211
• Sonda de temperatura
• Braç i suport d'elèctrode flexible
• Cable USB
• Unitat flash de programari PC-Link
• Adaptador de corrent (entrada: 120 V CA 60 Hz; sortida: 9 V 300 mA)
• Calibration Solutions (4.00 pH, 7.00 pH, 10.01 pH)

Components de connexió

Connect the electrode, temperature probe, and power adapter to the corresponding ports on the back of the PH820 meter unit. Ensure all connections are secure.

Figura 2: posterior view of the PH820 meter, highlighting the REF, pH/mV, TEMP, RS232, and DC 9V input ports.

1. Connexió de l'elèctrode: Plug the LabSen 211 pH Electrode into the port labeled "pH/mV".
2. Connexió de la sonda de temperatura: Insert the temperature probe into the port labeled "TEMP".
3. Connexió d'alimentació: Connect the power adapter to the "DC 9V" port and then to a power outlet.
4. Electrode Arm Assembly: Attach the flexible electrode arm and holder to the side of the meter unit for convenient electrode placement during measurements.

Instruccions de funcionament

Mesura bàsica del pH

1. Power on the meter by pressing the power button.
2. Esbandiu l'elèctrode amb aigua destil·lada i assequeu-lo suaument.
3. Immerse the electrode and temperature probe into the sample solution. Ensure the electrode tip is fully submerged.
4. Wait for the reading on the large LCD to stabilize. The meter displays pH and temperature simultaneously.
5. Record the stable reading.

Calibració del pH

The PH820 supports 1 to 5 points automatic calibration. Regular calibration ensures measurement accuracy.

1. Prepare the standard calibration solutions (4.00 pH, 7.00 pH, 10.01 pH are included).
2. Premeu el botó CAL botó per entrar al mode de calibratge.
3. Rinse the electrode and immerse it into the first calibration solution (e.g., 7.00 pH).
4. The meter will automatically recognize the solution and begin calibration. Wait for the stability icon to appear.
5. Once stable, the meter will prompt for the next calibration point. Repeat the rinsing and immersion process for subsequent solutions.
6. The self-diagnosis function will provide feedback on the calibration process and electrode condition, including slope data.
7. Exit calibration mode once all desired points are completed.

Gestió de dades

The PH820 allows for GLP data management, storing up to 500 groups of data. Data can be output via USB to a PC using the provided PC-Link software (Windows-based system only). Auto-timing data logging can also be configured.

ORP Measurement (Optional)

The PH820 can measure Oxidation-Reduction Potential (ORP) when an ORP electrode (e.g., 301Pt-C, sold separately) is connected to the pH/mV port. Refer to the ORP electrode's specific instructions for calibration and measurement procedures.

Manteniment

Cura dels elèctrodes

Proper care of the LabSen 211 pH Electrode is crucial for maintaining accuracy and extending its lifespan.

Figura 3: Primer pla view of the LabSen 211 pH Electrode, showing its glass body and sensor tip.

• Esbandida: Always rinse the electrode with distilled or deionized water before and after each measurement.
• Emmagatzematge: Store the electrode in its protective cap filled with a suitable electrode storage solution (or 3M KCl solution). No guardeu mai l'elèctrode en sec ni en aigua destil·lada.
• Neteja: If the electrode becomes contaminated or readings are sluggish, clean it according to the electrode's specific cleaning instructions.
• Bubble-free Tip: The LabSen 211 features an impact-resistant and bubble-free sensor tip. Ensure no air bubbles are trapped around the sensor during measurement.

Cura del comptador

The PH820 meter unit is IP54 water-resistant, meaning it is protected from dust and splashing water. However, it should not be submerged. Keep the meter clean and dry. Use a soft, damp cloth to wipe the surface. Avoid using abrasive cleaners or solvents.

Resolució de problemes

The PH820 features a self-diagnosis function that can assist in identifying and fixing common problems, particularly during calibration. Refer to the meter's display for diagnostic messages.

For persistent issues not resolved by the above, please contact Apera Instruments customer support.

Especificacions

Garantia i Suport

Apera Instruments products are manufactured under an ISO 9001:2015 certified quality system, ensuring high standards of production. For specific warranty information and technical support, please refer to the warranty card included with your product or visit the official Apera Instruments website. You may also contact their customer service directly for assistance with product operation, troubleshooting, or parts replacement.