Nessagro HI9813-6 Waterproof Portable pH/EC/TDS/Temperature Meter User Manual

1. Overview

The Nessagro HI9813-6 is a waterproof portable meter designed for measuring pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), and temperature. This device is engineered for precision and durability, making it suitable for various applications requiring accurate water quality monitoring.

Its robust design and comprehensive measurement capabilities ensure reliable performance in demanding environments.

2. Key Features

• Multi-Parameter Measurement: Measures pH, EC, TDS, and Temperature.
• Waterproof Design: IP67 rated for immersion in water up to 3 feet deep for 30 minutes. The meter is designed to float if dropped in water.
• Single Amplified Probe: Features a single probe for all measurements, immune to humidity and electrical noise.
• Durable Cable: Equipped with a thick gauge cable and stress relief at both ends for enhanced longevity.
• Quick Cal Function: Allows simultaneous pH and EC calibration using a single calibration solution, saving time and resources.
• Probe Health Indicator: An icon appears after two-point calibration to monitor the probe's health and accuracy.
• Long Battery Life: Powered by three AAA batteries, providing up to 600 hours of continuous use.
• Large LCD Display: Clear display shows multiple parameters simultaneously.

3. Setup

3.1. Battery Installation

The HI9813-6 meter operates on three AAA batteries. To install or replace the batteries:

1. Locate the battery compartment cover on the back of the meter.
2. Carefully remove the cover.
3. Insert three AAA batteries, ensuring correct polarity as indicated inside the compartment.
4. Securely replace the battery compartment cover.

3.2. Probe Connection

The meter comes with a pre-attached single amplified probe. Ensure the connection is secure before use.

Figure 1: The Nessagro HI9813-6 Waterproof Portable pH/EC/TDS/Temperature Meter with its attached probe. The meter features a large LCD display and user-friendly buttons.

4. Operating Instructions

4.1. Power On/Off

To turn the meter ON or OFF, press the MODE button located on the front panel.

4.2. Taking Measurements

Once powered on, immerse the probe into the sample solution. The meter will automatically display pH, EC/TDS, and temperature readings on the large LCD. Allow a few moments for the readings to stabilize.

4.3. Calibration

Accurate calibration is crucial for reliable measurements. The HI9813-6 offers two calibration methods:

4.3.1. Quick Cal (Recommended)

The Quick Cal function allows for simultaneous pH and EC calibration using a single calibration solution (e.g., HI50036). This method streamlines the calibration process.

1. Prepare the Quick Cal solution (e.g., HI50036).
2. Immerse the probe into the Quick Cal solution.
3. Follow the on-screen prompts to initiate and complete the calibration.

4.3.2. Separate pH and EC Calibration

Alternatively, pH and EC can be calibrated separately using standard calibration solutions from any brand. Refer to the meter's on-screen menu for specific instructions on performing individual calibrations.

4.4. Probe Health Indicator

After a successful two-point calibration, a 'Probe Health Indicator' icon will appear on the meter's display. This icon provides a visual assessment of the probe's condition and helps ensure measurement accuracy. A healthy probe is essential for reliable results.

5. Maintenance

5.1. Cleaning the Probe

To maintain optimal performance and accuracy, clean the probe regularly:

• Rinse the probe thoroughly with distilled or deionized water after each use.
• If significant buildup or contamination is present, use a mild cleaning solution specifically designed for pH/EC probes.
• Avoid abrasive materials that could damage the probe's sensitive elements.

5.2. Probe Storage

Proper storage is vital for extending the life of your probe:

• Always store the pH/EC/TDS probe in a suitable storage solution (not distilled water) to prevent the sensing elements from drying out.
• Ensure the protective cap is securely placed over the probe when not in use.

5.3. Waterproofing

The HI9813-6 meter, probe, and cable are IP67 rated, providing protection against dust and water immersion. This means the device can withstand immersion in water up to 3 feet (1 meter) deep for up to 30 minutes. In the event the meter is accidentally dropped into a reservoir, its design allows it to float, preventing loss.

6. Troubleshooting

If you encounter issues with your Nessagro HI9813-6 meter, refer to the following common troubleshooting steps:

• Inaccurate or Unstable Readings:
  • Ensure the probe is clean and free from any residue.
  • Perform a fresh calibration using appropriate calibration solutions.
  • Check the 'Probe Health Indicator' for any warnings. If the probe health is poor, it may need reconditioning or replacement.
  • Verify that the sample temperature is within the meter's operating range.
• Meter Not Turning On:
  • Check if the AAA batteries are correctly installed with the proper polarity.
  • Replace the batteries with new ones if they are depleted. The meter provides approximately 600 hours of continuous use.
• Display Issues:
  • If the display is dim or flickering, replace the batteries.
  • Ensure the meter is not exposed to extreme temperatures outside its operating range.

For persistent issues not resolved by these steps, please contact customer support.

7. Specifications

8. Warranty and Support

For detailed warranty information, technical support, or any further assistance with your Nessagro HI9813-6 meter, please visit the official Hanna Instruments website or contact their customer service department.

Official Website: hannaist.com