Introduction:
PHS The type digital display acidity meter is used for the laboratory measurement.PH Value of the high precision instrument, with PH,MV Dual function. Use E201 Composite electrode, fast response, good stability. This instrument is widely used in many fields, such as scientific research, teaching, agriculture and so on.
Working principle
By sensor (PHComposite electrode) will be hydrogen ion activity in aqueous solution into electrical energy, electrical energy input to the instrument, through the operational amplifier, current detection, theA/DConvert to digital display. The above electric energy conforms to the equation of the equation of the:
| Technical parameters and working conditions | |||
| Product name | PHS-3C | PHS-2C | PHS-25 |
| function | PH/mV | ||
| measuring range | (0~(14) pH (0)~.1999) mV | ||
| Resolving power | 0.011mV pH | ||
| Accuracy | .0.01 Ph | .0.02Ph | .0.05Ph |
| 1%FA.S | 1%FA.S | 1%FA.S | |
| temperature compensation | (0~60C) | ||
| stability | .0.01 pH/12h | ||
| ambient temperature | (5~45)C | ||
| relative humidity | Less than or equal to85%RH | ||
| Temperature of the tested solution | (0~60)C | ||
| Power Supply | AC (220V.(22) V (50).0.5) HzNo significant vibration and strong magnetic field interference | ||
