A professional manufacture and sales of various electronic balances, moisture analyzers, viscometers and laboratory instrument manufacturer of weight measure instruments..
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A professional manufacture and sales of various electronic balances, moisture analyzers, viscometers and laboratory instrument manufacturer of weight measure instruments..
After years of solid and rapid development, W&J has grown into one of the most professional and influential enterprises in China. ph and conductivity meter W&J have a group of service professionals who are responsible for answering questions raised by customers through the Internet or phone, tracking the logistics status, and helping customers solve any problem. Whether you'd like to get more info on what, why and how we do, try our new product - Bepoke ph and conductivity meter best brand, or would like to partner up, we'd love to hear from you.The production of W&J has a high requirement for temperature environment. To protect the electronics components from damage, this product is produced in a suitable temperature and humid-free environment.
Acidity meter (hereinafter referred to as pH meter) is a widely used chemical analysis instrument that uses hydrogen ion selective electrode to measure the pH value of liquid. The acidity meter uses the potentiometric method to measure the pH value. Its basic principle is: a reversible hydrogen ion indicator electrode connected to an internal reference electrode and an external reference electrode are immersed in a certain solution to form a primary cell, and a battery electromotive force is generated between the internal and external reference electrodes at a certain temperature. This electromotive force is related to the activity of hydrogen ions in the solution, but has little to do with the presence of other ions. The instrument measures the magnitude of the electromotive force and finally converts it into the pH value of the test solution and displays it.
In order to facilitate operation in experiments, the hydrogen ion indicator electrode connected to the internal reference electrode and the external reference electrode are often combined to form a composite electrode.
Model | PH-25 | PH-3C | |
Rank | 0.05 | 0.01 | |
Range | pH | (0.00~14.00) pH | (0.00~16.00) pH |
mV | (0~1599) mV | (0~±1999) mV | |
Resolution | pH | 0.01 pH | |
mV | 1 mV | ||
Error | pH | ±0.01 pH±1d | |
mV | ±1% FS | ||
Input Impedance | ≥1×1012 Ω | ||
Input Current | ≥1×1012 A | ||
Stability | (±0.05pH±1d)/3h | ||
°C Compensation | Hand (0.0~60.0) °C | ||
Power | 230/115Vac ± 15% | ||
Size (mm) | 220×160×65 | ||
N.W. (kg) | 1.5 | ||
Functions | 1. LCD 2. Temperature Compensation by Hand 3. One or Two Calibration Points 4. Self-moving E-201-C Style pH Combined Electrode | ||
Inner Packing (mm) | 365×305×215 | ||
Outer Packing (mm) | 640×350×78 (including 10 pcs) | ||
We also provide customized electronic balances/ laboratory scales with special functions according to customer needs.
