TESTS THE STRENGTH OF
CHEMICALS AFTER NEUTRALISATION

• IP67 Waterproof and Dustproof - ideal for rugged wet applications.
• Lightweight.
• Microprocessor-based with advanced user-friendly functions incorporated.
• Push-Button Calibration for quick, easy calibration.
• Auto-Power Off after 8.5 minutes conserves battery power.
• Hold Function freezes reading momentarily for easy viewing and recording.
• Self-Diagnostic with message codes for easy troubleshooting.
• Cup-Type sensors allow small sample volume measurements or direct immersion in test sample.
• Non-volatile memory.

Instructions for use of Eco pH1 meter to ascertain acidity or alkalinity of system water

CONDITIONING:

The pH meter should be conditioned before first use. Remove the transparent cap and fill to a depth of 20mm. Hold the tester upright and recap. Soak the sensor for one hour. This will activate the sensor and dissolve any crystals present. Rinse the cap after use.

CALIBRATION:

Use a buffer solution (test solution) with pH 7 for general testing, or a buffer solution with pH 4 or 10 if you are measuring acidic or alkaline solution samples.

Switch on by pressing ON/OFF button. Immerse the electrode in the buffer solution with at least 2 cm immersed, and stir gently.

Wait for the value displayed to stabilize at or near the pH level of the chosen buffer solution. Press the ‘cal’ button to enter the calibration sequence. ‘CAL’ will flash on the display momentarily and then a flashing default reading. To complete the calibration, press ‘hold/ent’ button to confirm.

pH TESTING:

1. Take a sample of at least 100cc of the water to be tested in a suitable beaker / vessel, to a depth of approx. 5cm.

2. Remove the transparent protective cap from the pH meter.

3. Turn the pH meter on by depressing the ON/OFF button located on the side of the meter.

4. Dip the sensor in at least 2 cm of test solution.

5. Stir once, and let the display stabilize. Note the pH reading. Press the ‘hold/ent’ button if you wish to hold the reading. Press again to cancel the hold mode. Press the ON/OFF button to shut the pH tester off.

Note: The Eco pH1 meter automatically shuts off after 8.5 minutes of non-use to conserve batteries.

6. After taking the reading, remove the meter from the sample, and flush with clean water before storing.

CHANGING BATTERIES:

To remove batteries, lift up front battery cover and hold in position before lifting two sides of the pocket clip (Figure 1). Remove old batteries and replace with fresh ones. Note polarity as shown in battery compartment.

Figure 1: click to see larger version

No re-calibration is required after battery change as tester’s non-volatile memory retains calibration.

MAINTENANCE:

Rinse the electrode in tap water after use. In harsh samples, take readings quickly, rinse electrode immediately afterwards with de-ionized water to remove residues and prevent electrode contamination. To maximize electrode life, place a small piece of clean cloth or sponge in the cap, moisten with tap water (NOT DE-IONIZED WATER), and replace cap.