Qiwei PHS-25 desktop precision pH meter 0~14pH

Introduction

The measurement accuracy of Qiwei PHS-25 (desktop precision type) pH meter is ±0.05pH. Can measure pH value and mV value at the same time, with white backlight. The rechargeable one is that a battery can be installed inside the pH meter. You can use the power cord or unplug the power cord to directly use the animal battery to support the work of the pH meter. It is easy to operate, and the battery can be used for 10-15 hours once charged.

Note: The original model of PHS-25 is PHS-25C, and the original model of PHS-25C is PHS-25CB .

Product principle

PHS-25 (desktop precision type) pH meter converts the activity of hydrogen ions in the aqueous solution into electrical energy by the sensor (pH composite electrode), and the electrical energy is input to the pH meter, which is converted into digital display by A/D through operational amplifier and current detection.

Pictures

Parts and Functions

Positioning knob: Adjust the value of the pH6.86 standard buffer solution according to the corresponding temperature during calibration.

Temperature Knob: Set the temperature value of the solution to be tested.

Slope knob: adjust the value of pH4.00 or pH9.18 standard buffer according to the corresponding temperature during calibration.

Electrode socket: connect pH compound electrode (interface model: Q9)

pH/mV switch: choose to measure pH value or mV value

Power switch: turn on or off the power of the instrument

Power socket: connect the regulated power adapter, or power cord

Host x1, Buffer reagent x3, Encasement box x1

[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.