Description
reliably and precisely determine the moisture or dry mass of bulk materials, suspensions or pasty materials online in the process
Technical Data
Properties
- Housing
- NEMA4/ IP65
- ltdata.Eingangsspannung
- 80 - 260 V AC (50 Hz/60 Hz), 24 V DC
- measuring resolution
- 16-bit
tdata.Ausgangssignal
- Standard
- Optional
- ltdata.RS232/485
- Devicenet
- ltdata.EthernetTCP/IP
- Profibus / Profinet
- ltdata.EthernetUDP
- Modbus
- ltdata.3x4...20mA
- Ethernet/IP
Further product information
The measurement is done contact-lessly with near-infrared light (NIR). Due to the significantly higher wavelength of NIR compared to visible light (VIS), there is a greater penetration depth into the sample regardless of its color. OMC reacts largely insensitive to unevenness of the material to be measured, such as particle size and material height
fluctuations.
The use of a well-suited wavelength of NIR light ensures precise measurement under difficult industrial process conditions - even in dusty or steamy environments almost independent of temperature and daylight.
To determine the moisture content, the material to be measured is irradiated with a precisely filtered NIR light of specific wavelength.
Water molecules contained in the material are absorbed by NIR light in the range of 1100 to 2450 nm. Then unabsorbed transmitted and backscattered residual light is a measure of the absolute moisture or dry matter content of the material.
OMC 2500 takes advantage of the NIR reflection achieving a precise, reliable and contactless measurement from almost all wet material surfaces. Through the evaluation of an internal precisely filtered NIR reference beam from the same light source of the NIR measuring beam ensures maximum stability and a drift-free measurement over a long period of operation. To calibrate the device, the referenced NIR measurement values of the known material moisture are gathered. Multiple data points are interpolated within the device-internal fitting curve and stored as a final calibration curve for the specific material.
