Instrument Introduction

1Overview

Desktop multi parameter measuring instrumentadopt4.3-inch touch screen, especially suitable for domestic users.

1.1 Expected use：This product is for laboratory testingwatersamplePH、ORP、 Dissolved oxygen and conductivity, etc.

1.2 structural composition：This instrument consists of a detection unit, a control unit, operating software, and a display unit.

1.3 Working principle：Desktop multi parameter measuring instrumentadoptDetermination of Water Samples by Glass Electrode MethodPHThe value is obtained by using a saturated calomel electrode as a reference electrode, a glass electrode as an indicator electrode, and a working cell composed of the measured water samplePHMeasuring the working electromotive force, byPHRead directly from the meterPH value.

Dissolved oxygen measurement adopts the fluorescence phase method. Blue light is irradiated onto the fluorescent film head to excite the fluorescent substance and emit red light. Due to the quenching effect, the time and intensity of the excited red light are inversely proportional to the concentration of oxygen molecules. By measuring the phase difference between the excited red light and the reference light, the concentration of oxygen can be calculated. At the same time, real-time detection of water temperature and temperature compensation of the dissolved oxygen value obtained from the test.

The principle of measuring conductivity is to measure it in parallel and at a fixed distance from each otherTwo electrode plates (or cylindrical electrodes) of L are placed in the test solution, and a certain amount of is added to both ends of the plateselectric potentialTo avoid solution electrolysis, it is usually a sine wave voltage with a frequency of1～3 kHz）。 and then throughConductivity meterMeasure the conductivity between the electrode plates.

1.4 Production date and service life:Please refer to the product label for the specific date. After the expiration date, the instrument can be disposed of according to local environmental protection regulations and relevant national regulations, or contact our company for recycling matters. Otherwise, it may cause pollution to the environment

1.5 Usage period：After the expiration date, the instrument can be disposed of according to local environmental protection regulations and relevant national laws and regulations on medical device disposal, or contact our company for recycling matters, otherwise it may cause pollution to the environment.

1.6 Product Contraindications:No contraindications have been found for this product yet.

IITechnical Specifications