QIWEI PHS-25B pH meter desktop microcomputer rechargeable
PHS-25B
QiWei PHS-25B pH meter (desktop microcomputer rechargeable)SPEC
QiWei PHS-25B pH meter (desktop microcomputer rechargeable)Details
QiWei PHS-25B pH meter (desktop microcomputer rechargeable)Packing list
- SKU
- NB003957
- PH range
- 0~14pH
- PH Measurement Accuracy
- ±0.05pH
- resolution
- pH: 0.01pH/Temperature: +/- 1 ℃
- Measurement range
- 0~100℃
- Stability (zero drift)
- ≤ 0.01pH +/- 1 word/2h
- Impedance
- ＞1x1012Ω
- Data storage
- none
- Power Supply
- 9V DC Power Supply
- Dimension
- 230*200*60mm
- Weight
- About 1.5Kg
- Standard electrode reagent
- E201-C plastic case PH composite electrode (suitable for solution temperature measurement in the range of 5-60 ℃); PH standard calibrated sample; power adapter
- Environmental temperature
- 0~40℃
- Allowable Relative Humidity
- <85%
- Solution temperature compensation range
- 5~60℃
- Measurement Accuracy
- ±1℃
- Measurement range
- 0~100℃
- Measurement range mV
- ±1000mV
- Temperature compensation method
- manual
Introduction
Qi WeiPHS-25B PH meter (desktop microcomputer) is a desktop digital acidity meter with a measurement accuracy of 0.05pH, using imported high-quality integrated components, controlled by microprocessor, stable performance, accurate and reliable measurement.The PHS-25B PH meter is often used in the laboratory to detect the acidity value and mV value of the solution, using touch buttons, manual temperature compensation.
Note: The original model of PHS-25 is PHS-25C,The original model of the PHS-25B was PHS-25CB.
Product Applications
PHS-25B PH meter can be widely used in environmental protection, food, chemical industry and scientific research departments for chemical analysis and detection of PH value.
The principle of the product circuit
The PHS-25B PH meter is a DC amplifier with high input impedance, and the impedance conversion is obtained by the high input impedance integrated circuit. The pH meter has the function of temperature compensation and electrode slope compensation because the pH value of the solution is related to temperature, and the mV-to-pH conversion slope of the glass electrode is generally lower than the theoretical value, and decreases with the increase of use and storage time. There is a certain discreteness between the electrodes.The temperature compensation of the PH meter and the pH-mV conversion slope compensation of the electrode as well as the pH positioning and calibration are automatically controlled and adjusted by the microprocessor.
Actual picture of the product
