1. Use of instruments
PHS type digital display acidity meter is a high-precision instrument used to measure PH value in laboratory. With dual functions of PH and MV, and standard e201-c composite electrode, it has quick reaction and good stability. The instrument is applicable to industrial and mining enterprises, scientific research, agriculture, medicine, teaching, environmental protection and other units, used for sampling and determination of pH value of aqueous solution and measurement of electrode potential (mV value).
2. Technical performance and complete set of instruments
Main technical parameters of the instrument:
| Model | PH measurement range | Accuracy of pH measurement | The resolution of the | MV range of measurement |
| HZQW_PHS-25/25C | The pH of 0.00 to 14.00 | ±0.05 pH | 0.01 pH | 0 ~ ±1999 mv |
| HZQW_PHS-2C | The pH of 0.00 to 14.00 | ±0.02 pH | 0.01 pH | 0 ~ ±1999 mv |
| HZQW_PHS-3C | The pH of 0.00 to 14.00 | ±0.01 pH | 0.01 pH | 0 ~ ±1999 mv |
| Model | MV measurement accuracy | The resolution of the | Temperature compensation range | Standard buffer solution |
| HZQW_PHS-25/25C | ±10 mv | 1 mv | 0 ~ 60 ℃ | PH4.00 |
| HZQW_PHS-2C | ±10 mv | 1 mv | 0 ~ 60 ℃ | PH6.86 |
| HZQW_PHS-3C | ±2 mv | 1 mv | 0 ~ 60 ℃ | PH9.18 |