Online near-infrared moisture detector

Our company producesOnline near-infrared moisture detectorUsing near-infrared spectroscopy (NIR) technology to detect the moisture content of the measured medium, it is an online, non-contact moisture analyzer.

1. Working principle

This device is developed based on the principle that different components have different absorption characteristics for near-infrared light: water exhibits strong absorption characteristics for certain specific wavelengths of infrared light. When these specific wavelengths of infrared light are irradiated on materials, the water contained in the material will absorb some of the energy of the infrared light. The more water content there is, the more it absorbs. Therefore, the reduction in reflected light can be measured to calculate the moisture content of the material.

2. Online near-infrared moisture detectorAdvantages and Features

Adopting advanced spectroscopy technology to quickly and accurately measure moisture content, ensuring accurate and reliable data;

It can continuously detect the moisture value of the tested substance during operation, with reliable performance, easy installation, and long service life;

All digital signal processing: digital filtering eliminates interference and can maintain the best signal-to-noise ratio even when detecting black materials;

Stable structural design, strong seismic resistance, stable long-term use, strong durability, waterproof and dustproof;

Split design, one controller can connect multiple probes.

3. Installation location

It can be installed and used in various positions such as screw feeders, silos, hoppers, funnels, or pipelines above the belt conveyor to measure the real-time, dynamic, and high-precision moisture content of the measured medium,

4. Scope of application

Suitable for moisture detection of various materials such as wood powder, shavings, sawdust, wood powder, wood fiber, fiberboard, particleboard, grains, feed, tobacco, tea, food, flour, starch, milk powder, soybean powder, metallurgy, quartz sand, cement, coal, mineral powder, ore, papermaking, Chinese and Western medicinal materials, soil, film, ceramics, chemical materials, etc.

Technical Specifications

Product type: Universal type

Measurement range: 0-100% (the maximum measurement range is when the material is saturated with water absorption)

Measurement accuracy: ± 0.2% (changes in material composition can cause measurement errors)

Light source: Imported high-efficiency light source

Filter cycle: 1-60S

Illumination diameter: 60-75mm
Working height: 350mm+100mm
Measurement channel: 50
Probe glass: Made of high boron quartz glass to prevent stains and water vapor from adhering
Working environment: 40 ℃~+70 ℃, 5%~95% RH (non condensing)

Power supply: 220VAC/50HZ

Communication method: RS485/4-20mA/RS232/LAN/LoRa wireless

Protection level: IP65
Host display: touch screen operation

Probe material: high-strength aluminum alloy shell