VANGUARD HYDROPONICS pH Meter

Portable pH tester designed to check the acidity of water and nutrient solutions. Suitable for quick checks and for keeping nutrient management more stable.

Key features

1. Parameter measured: pH
2. Calibration: indicated procedure with buffer solutions
3. Reference buffer indicated: pH 6,86 (phosphate standard)
4. Other buffers mentioned: pH 4,01 or pH 9,18 (borax standard)
5. Usage notes: do not immerse beyond the display level; clean the electrode after each use

Overview

What it is for

It is used to check the pH of the nutrient solution or irrigation water. An incorrect pH can reduce nutrient availability and make plant uptake less predictable.

Who it is for

1. Indoor/outdoor growers managing nutrient solutions and pH adjustments
2. Those who want a pocket tester for frequent checks
3. Users who prefer a “buffer-based” calibration procedure as per instructions

What makes it different

1. Calibration procedure described with pH 6,86 buffer and screwdriver adjustment
2. Instruction to calibrate before use and clean after each use
3. Compact format with essential instructions for practical use

How to use

Measurement

1. Remove the protective cap.
2. Clean the electrode with distilled water and dry it with paper.
3. Switch on the instrument.
4. Immerse the electrode in the solution up to the indicated immersion level, without going beyond the display level.
5. Move gently and wait for the reading to stabilize.
6. After use, switch off, rinse the electrode with clean distilled water, and replace the cap.

Calibration

1. The instructions indicate calibration with pH 6,86 buffer (phosphate standard), adjusting the calibration trimmer with a screwdriver.
2. They also mention pH 4,01 or pH 9,18 buffers (borax standard) as calibration references.
3. Immerse the electrode in a pH 6,86 buffer solution and shake gently.
4. Adjust the calibration trimmer until the value corresponding to the buffer at the measurement temperature is obtained.
5. If required by the procedure, repeat with pH 4,01 or pH 9,18 buffer.

Maintenance

1. The instructions indicate calibrating the instrument before use and cleaning the electrode after each use.
2. Handle the electrode carefully to avoid damage or abnormal readings.

Warnings

1. Do not immerse the instrument beyond the display level.
2. Follow the indicated calibration procedure and use clean containers for the buffers.

Technical specifications

1. Parameter: pH
2. Calibration (instructions): pH 6,86 buffer; pH 4,01 and pH 9,18 also mentioned
3. Battery indication (instructions): replace the batteries when the numbers on the display fade
4. Warranty (instructions): 1 year from date of purchase

Brand

VANGUARD HYDROPONICS offers measuring instruments intended for monitoring nutrient solution parameters in cultivation.

FAQ & growing tips

Which buffers are needed for calibration?

The instructions indicate a pH 6,86 buffer and also mention pH 4,01 and pH 9,18 as calibration references.

How often should it be calibrated?

The instructions state that the pH meter should be calibrated every time it is used and cleaned after each use.