A pH meter is a laboratory instrument for scientific use, which measures the activity of the hydrogen ion in aqueous solutions, indicating its degree of acidity or alkalinity expressed as pH, is used in laboratories and in multiple other fields or areas; a pH measurement can be obtained using pH indicators or tapes, or meters such as pH meters, portable meters or pH electrodes.
This pH meter instrument makes a measurement of the pH by a potentiometric method, based on the fact that between two solutions with different H + a potential difference is established, which determines when the two solutions come into contact a flow of electric current occurs, in practice the pH measurement is relative, since the pH of a sample is compared with that of a known pH standard solution.
As mentioned above the measurement of the ion concentration or the measurements of specific ions through an ion meter can be performed on a wide variety of samples such as: water, food, beverages, pharmaceuticals and also samples of biological origin.
An ion meter works by selective ion electrodes (ISEs) which are measuring devices with a sensitive membrane capable of measuring ion activity. These devices measure the concentration of ion determined in a solution using a sensor electrode and a reference electrode. They work through ion exchange, where the difference in potential that is generated when the electrode comes in contact with the ion being studied is measured. The specific ion activity is transformed into electrical potential at the moment it comes into contact with the active membrane of the selective ion electrode.
Setup menu allows you to configure the number of calibration points, stability criteria, temperature,Unit, date and time...
Multiparameter portable ion meter, 2 to 5 points calibration, selectable ion concentration units. The meter is suitable...
• Auto-Read function senses and locks the measurement endpoint.
• Calibration due alarm prompts user to calibrate the meter regularly.
• Auto-Power Off effectively conserves battery life.
• Setup menu allows setting the number of calibration points, stability criteria, temperature
unit, date and time, etc.
• Reset function automatically resumes all settings back to the factory defaults.
• Expanded memory stores or recalls up to 500 data sets.
• USB communication interface for data transfer or connecting a power adapter to meter.
| Model | YR01816 |
| pH | |
| Range | -2.000 to 20.000pH |
| Resolution | 0.001, 0.01, 0.1pH, selectable |
| Accuracy | ±0.002pH |
| Calibration Points | 1 to 5 points |
| pH Buffer Options | USA, NIST, DIN, 2 custom buffers |
| ORP | |
| Range | ±1999.9mV |
| Resolution | 0.1, 1mV, selectable |
| Accuracy | ±0.2mV |
| Calibration Points | 1 point |
| Measurement Modes | Relative or absolute mV |
| Ion Concentration | |
| Range | 0.001 to 19999 (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 |
| 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 | Low or high |
| Calibration Due Alarm | 1 to 31 days or off |
| Auto-Power Off | 10, 20 or 30 minutes after last key pressed |
| Memory | Stores up to 500 data sets |
| Output | USB communication interface |
| Connector | BNC, 3.5mm jack socket |
| Display | Custom LCD (80×60mm) |
| Power | 3×1.5V AA batteries or DC5V power adapter |
| Battery Life | Approximately 150 hours (turn off the backlight) |
| Dimensions | 170(L)×85(W)×30(H)mm |
| Weight | 300g |
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In this section you can find, our Ion meter running, packaged, receiving service, etc.
An ion meter is an electrochemical analytical device that is used to measure ion concentration in a solution. It is used with several ion electrodes (ISE).
An ion is an atom or a group of atoms with electric charge. This charged particle can be positive or negative. A cation is an ion with positive charge and an anion is one with a negative charge (atom or molecule). The ions are formed when a neutral (electrically neutral) atom loses or gains electrons. The anions have more electrons than protons and cations have a higher proton number.
Measuring the concentration of ions or measurements of specific ions through an ion meter can be performed in a wide variety of samples such as water, food, beverages, pharmaceutical products and samples of biological origin.
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