On-line Moisture Measurement 

Compare the Technology of MoistScan^®  Process Moisture Meters

 

Moistscan Advantages
The MoistScan®  employs the most recent microwave technology available. Many of it’s microwave components have been specially designed by US firms. The MoistScan®  employs both phase shift and attenuation of the microwave signal for the determination of moisture using a patented method.
The MoistScan® Moisture Analyser design has an extended dynamic range, enabling it to analyse much deeper bed depths than the majority of it’s competitors.
The MoistScan® patented technique requires NO use of radioactive sources and eliminates subsequent licensing issues.
The MoistScan® Moisture Analyser employs a simple compact design utilising industry standard components.
Typical delivery is only around 4 weeks
The MoistScan® is very cost competitive
The MoistScan® has a simple set-up procedure. Only six parameters are required to be determined and the analyser, in some cases, comes pre-calibrated.
The MoistScan® is very simple to install, being lightweight and using low profile antenna.

The microwave transmission technique is well established and is suited to a wide range of non conducting materials and is said to offer significant advantages compared to other techniques and are summarised in the comparison table below.

 

MoistScan Moisture Meter Measurement advantages Vs near Infrared Technology
Potential Limitation	MOISTSCAN ®	Near Infrared
Vertical segregation	Unaffected - beam penetrates full bed of material	Reflectance technique from surface molecules only.
Sample presentation	Unaffected by position of material	Distance of material surface to receiver important
Colour	Unaffected	Significant effect
Ambient lighting	Unaffected	Requires shielding
Wear	No moving parts	Mechanical filter system
Presence of steam	Unaffected	Can cause interference
Dirty Atmosphere	IP65 enclosures	Window requires to be kept clean
MoistScan Moisture Sensor Analysis advantages Vs Capacitance
Potential Limitation	MOISTSCAN ®	Capacitance
Vertical segregation	Unaffected - beam penetrates full bed of material	Very limited material penetration, possible vertical segregation effects
Sample presentation	Unaffected by position of material	requires control of distance of conveyor belt to system
Conductivity of Material	Wide range of materials amenable to technique	Limited range of applications
Steel cored reinforced conveyor belts	Can be used	Cannot be used

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