A pH meter consists of three essential parts: a pH measuring electrode, a reference electrode and a high input impedance meter. The reference electrode has a known, constant and stable potential.
The pH electrode can be considered as a battery, with a voltage that varies according to the pH of the measured solution. The pH-determining electrode is a hydrogen ion sensitive glass bulb, with a millivolt output that varies according to alterations in the relative concentration of hydrogen ions inside and outside the bulb. The output of the reference electrode does not change with the activity of hydrogen ions. The pH electrode has a very high internal resistance, which makes it difficult to measure voltage variation with pH. Therefore, the impedance of the pH meter input and the dispersion resistances are important factors.
• BNC connector is capable of connecting the different types of pH electrodes.
• 1 to 3 points calibration with auto-buffer recognition.
• Manual temperature compensation allows adjusting the temperature value.
• Auto-Read function senses and locks the measurement endpoint.
• Auto-Power Off effectively conserves battery life.
• Setup menu allows setting the pH buffer group, number of calibration points, temperature
unit, etc.
• Reset function automatically resumes all settings back to the factory defaults.
Accessories
High-accuracy pocket pH meter, 1 to 3 points calibration, setup menu contains 5 options. The tester is suitable...
High-accuracy pocket pH meter, 1 to 3 points calibration, setup menu contains 5 options. The tester is...
Classical benchtop pH meter, 1 to 3 points calibration, Automatic Temperature Compensation, setup menu contains 5 options...
Professional pH and ion meter, 2 to 5 points calibration, setup menu contains 20 options. The meter is suitable...
Professional pH and ion meter, 2 to 5 points calibration, setup menu contains 20 options. The meter is suitable for measuring the pH, mV, ion concentration and water hardness.
• Professional pH/ion meter is equipped with a 7 inch TFT display.
• 1 to 5 points calibration with automatic recognition for USA, NIST and DIN buffers.
• Solution Temperature Coefficient compensates for the pure water samples and references
the pH to 25°C.
• 2 to 5 points calibration, including the 8 concentration points can be selected.
• Electrode management is capable of storing and recalling up to 3 electrode slopes.
• Selectable ion measurement methods (direct reading, known addition, known subtraction,
sample addition, sample subtraction) and concentration units (ppm, mg/L, mol/L, mmol/L).
| Model | YR01825 |
| pH | |
| Range | -2.000 to 20.000pH |
| Resolution | 0.001, 0.01pH, selectable |
| Accuracy | ±0.002pH |
| Calibration Points | 1 to 5 points |
| pH Buffer Options | USA, NIST, DIN, 5 custom buffers |
| ORP | |
| Range | ±2000.0mV |
| Resolution | 0.1mV |
| Accuracy | ±0.2mV |
| Calibration Points | 1 point |
| Measurement Modes | Relative or absolute mV |
| Ion Concentration | |
| Range | 0.001 to 30000 (deponding on the range of ISE) |
| Resolution | 0.001, 0.01, 0.1, 1 |
| Accuracy | ±0.5% F.S. (monovalent), ±1% F.S. (divalent) |
| Calibration Points | 2 to 5 points |
| Calibration Solutions | 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000 |
| Measurement Units | ppm, mg/L, mol/L, mmol/L |
| Measurement Methods | Direct reading, known addition, known subtraction, |
| sample addition, sample subtraction | |
| Water Hardness | |
| Range (Concentration) | 0.05 to 200mmol/L |
| Range (German Degree) | 0 to 1120°dH |
| Range (English Degree) | 0 to 1404°e |
| Range (French Degree) | 0 to 2000°fH |
| Range (Ca2+) | 0 to 8000mg/L |
| Range (CaCO3) | 0 to 19999mg/L |
| Range (CaO) | 0 to 11220mg/L |
| Resolution | 0.001, 0.01, 0.1, 1 |
| Accuracy | ±1% F.S. |
| Calibration Points | 2 to 5 points |
| Calibration Solutions | 0.01, 0.1, 1, 10, 100mmol/L |
| Temperature | |
| Range | 0 to 105°C/32 to 221°F |
| Resolution | 0.1°C/0.1°F |
| Accuracy | ±0.5°C/±0.9°F |
| Offset Calibration | 1 point |
| Calibration Range | Reading ±10°C |
| General Specifications | |
| Temperature Compensation | 0 to 100°C/32 to 212°F, manual or automatic |
| Stability Criteria | Standard or high-accuracy |
| Calibration Due Alarm | 1 to 31 days or off |
| Interval Readings | 10, 30, 60 seconds, 10, 30 minutes or off |
| Password Protection | 4 digits |
| Memory | Stores up to 1000 data sets |
| Output | USB communication interface |
| Connector | BNC, 3.5mm jack socket |
| Display | 7” TFT LCD |
| Power | DC12V, using AC adapter, 220V/50Hz |
| Dimensions | 240(L)×220(W)×80(H)mm |
| Weight | 1.7kg |
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To know the price of pH Meters we invite you to send us an email with your request through the contact form...
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