pH Hemisphere - Measuring device YSI - Free user manual and instructions
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| Type of product | pH meter with hemispherical sensor |
| Brand | YSI |
| Model | pH Hemisphere |
| Measurement range pH | 0.00 to 14.00 pH |
| Resolution pH | 0.01 pH |
| Accuracy pH | ±0.02 pH |
| Temperature measurement | Yes, built-in temperature sensor |
| Temperature range | 0 to 50°C |
| Automatic temperature compensation | Yes |
| Calibration | Automatic, up to 3-point buffer recognition |
| Display | LCD with backlight |
| Power supply | 2 x AAA batteries (included) |
| Battery life | Approximately 500 hours of continuous use |
| Auto-off | After 5 minutes of inactivity |
| Dimensions | 150 x 30 x 25 mm |
| Weight | 180 g (including batteries) |
| Material | ABS plastic body, glass pH electrode |
| Water resistance | IP67 (temporary immersion) |
| Electrode type | Replaceable hemispherical pH electrode |
| Electrode storage | Storage solution recommended |
| Maintenance | Clean electrode with distilled water; store in storage solution |
| Safety | Do not immerse beyond indicated depth; avoid solvents |
| Spare parts | Replacement pH electrode available |
| Warranty | 1 year limited warranty |
Frequently Asked Questions - pH Hemisphere YSI
How to calibrate the YSI pH Hemisphere?
Place the meter in pH buffer solution (e.g. 7.0) and press the CAL button until display shows calibration. Repeat for other buffers if desired.
How to store the pH electrode?
Rinse with distilled water and store in electrode storage solution or pH 4 buffer. Do not let it dry out.
What is the battery life?
Approximately 500 hours of continuous use with fresh AAA alkaline batteries.
Can I measure temperature?
Yes, the meter has a built-in temperature sensor and displays temperature automatically with automatic temperature compensation.
How to replace the electrode?
Unscrew the old electrode, rinse the connector, and screw on a new YSI pH Hemisphere replacement electrode.
What does the auto-off feature do?
The meter turns off after 5 minutes of inactivity to save battery. Press any button to wake it.
Is the meter waterproof?
It is IP67 rated, meaning it can withstand temporary immersion in water (1 meter for 30 minutes).
What buffers are recommended?
Use pH 4.0, 7.0, and 10.0 standard buffer solutions for calibration.
How to clean the meter?
Wipe the exterior with a damp cloth. Rinse the electrode with distilled water after each use. Do not use solvents.
What does the error code E02 mean?
E02 indicates electrode connection error. Check that the electrode is properly installed and not damaged.
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