Moisture Analyzer Principle Analysis

There are several methods for measuring the moisture analyzer. The principle of each measurement method is not the same. The following introduces each principle.

Halogen moisture analyzer is widely used, and its principle is the same as the traditional international oven method. It uses the halogen lamp to dry and heat the measured sample, and automatically calculates the moisture value according to the weight change before and after. This method is a physical method and it is widely used in food, feed, tea, grain, sludge, paper, powder, and plastics industries. Halogen in the halogen moisture analyzer refers to a ring halogen lamp, which is filled with inert gas to provide more uniform heating and longer service life.

The Karl Fischer moisture analyzer is based on the chemical method. The principle is that the Karl Fischer reagent reacts with the water in the sample to be dissolved after the sample is dissolved, thus obtaining the value of the moisture content. Karl Fischer reagents are reagents in which different substances are proportioned according to a certain ratio. The analytes need to be soluble in organic solvents and do not react with Karl Fischer reagents to generate water. If the sample to be tested contains aldehydes and ketones, special reagents for aldehydes and ketones are required. Karl Fischer moisture analyzer is widely used in volatile powders, organic solvents, chemical liquids, powders, petroleum, rust-proof oils and other oils, with high precision, suitable for small moisture, easy Dissolved, volatile material moisture measurements.

The principle of the portable moisture analyzer is divided into two kinds, the principle of the resistance method and the principle of high-frequency induction. Is to emit electrical conductivity and high frequency to measure the measured material moisture, the size is usually similar to mobile phones, portable precision is slightly lower than the desktop halogen moisture meter, but the portable inside also has high precision, good quality, specific can consult Taizhou days Instrument professional sales staff.

The principle of the in-line moisture analyzer is that the lens of the online moisture analyzer emits near-infrared light, and after reaching the surface of the object, it senses moisture and displays it through a real-time display screen. The on-line moisture analyzer is mostly used on the production conveyor belt to measure the moisture content of the measured sample in real time online, which is favorable for the enterprise to monitor the moisture value in real time.