pH-420 is pH/mV meter for measuring the activity of hydrogen ions (pH), redox potential (Eh) and temperature in drinking water, food products and raw materials, environmental objects and industrial process control systems
pH Meter pH-420 can be used in industrial, clinical and diagnostic, forensic, research laboratories; stationary and mobile, including field, control, inspection and supervision bodies, university workshops.
pH-420 is a new generation of professional pH meters, which are a continuation of the pH-410 series of pH meters with new functionality that only expensive stationary devices of major foreign manufacturers could have had until recently. The use of modern technologies has significantly reduced the cost of pH meters and improved technical, operational and metrological characteristics. The pH meter has no domestic analogues both in terms of technical capabilities and in terms of price/quality ratio. The ease, simplicity, reliability and ease of operation make it possible to quickly and efficiently measure the activity of hydrogen ions (pH), redox potential (Eh) and temperature in solutions, drinking water, food products and raw materials, environmental objects and production process control systems.
Main features of the pH meter
- Large and high-contrast liquid crystal display.
- Convenient and functional keyboard.
- The ability to store measurement results recorded manually or automatically in the device's memory, the memory capacity is one hundred records.
- Automatic thermal compensation of the pH meter, simplified input of coordinates of the isopotential point.
- Simultaneous display of pH, mV, and temperature values on the indicator.
- The pH meter is powered by a 220 V power supply or a built-in battery with automatic charging.
- Convenient and fast calibration of the pH meter: the pH values of standard buffer solutions are already stored in the device's memory. At the end of the calibration process, the indicator shows the value of the steepness of the hydrogen characteristic of the electrode.
- Automatic buffer recognition.
- Low battery indicator.
- Compatibility of the pH meter with electrodes of most domestic and foreign manufacturers (BNC connector), including combined ones.
Contents of basic delivery set:
- Measuring transmitter
- Thermal sensor
- AC adapter for 220 V
Contents of standard delivery set:
- Measuring transmitter
- Thermal sensor
- AC adapter for 220 V
- Combined pH electrode
- Standard-captions
Additionally supplied:
- pH-electrodes for various purposes
- Magnetic Stirrer
- Laboratory tripod
Specialized pH electrodes:
| Model | Appointment |
| Combined pH electrode, plastic housing, 0 ... 40 °C | Laboratory, general purpose. |
| Combined pH electrode, glass housing, 0 ... 100 °C | Laboratory, general purpose. |
| Combined pH electrode with conical membrane, glass housing, 0 ... 100 °C | Laboratory, for measurements in food, semi-solid substances, non-aqueous media. |
| Combined pH electrode with knife attachment, plastic housing, 0 ... 100 °C | Laboratory, for measurements in meat and solid substances. |
| Combined pH electrode with flat membrane, plastic housing, 0 ... 80 °C | For measuring the pH of surfaces |
| Combined semi-micro-pH electrode, 0 ... 100 °C | Laboratory for measurement in containers with a narrow neck (test tubes, flasks, bottles, etc.), as well as in samples of small volumes (~ 0.3 ml). |
| pH measuring range | -0.5 to 14 pH |
| pH measurement resolution | 0.01 pH |
| Redox measurement range | -1999 to +1999 mV |
| Redox measurement resolution | 0.1 mV |
| Temperature measurement range | -10 to 100 °C |
| Temperature measurement resolution | 0.1 °C |
| Accuracy (±): pH measurements Redox measurements temperature measurement |
0.02 pH 1 mV 2 °C |
| Memory size | 100 measurements |
| Weight | 0.7 kg |
| Dimensions | 240x100x51 mm |
