Series 9 Industrial Moisture Gauge

On-line Near Infrared (NIR) Moisture Gauge for Industrial Applications

On-line Moisture Gauge

The Series 9 NIR Industrial Moisture Gauge is the latest generation sensor for precise on-line measurement of moisture for almost any material using patented non-contact technology. The gauge is suitable for continuous monitoring of moisture for all types of materials including powders, coarse or fine particles, concentrates, slurries, pastes, flakes and granules. The ultra-accurate device provides continuous, dependable measurements that can be relied upon for automated process control of industrial applications to improve the product quality and plant efficiency. The gauge is ‘fit for purpose’ for use even in the harshest industrial applications. Being constructed from 316L stainless steel protected to IP67 and fitted with a tough sapphire window with built-in air purge protection, it is suitable for use in ATEX zone 20 environments.

On-line industrial moisture gauge On-line industrial moisture gauge

Multiple User Interfaces to Suit Every Situation

Several types of gauge displays are available to meet the needs of different customer requirements, all are equipped with a modern high resolution 10” colour, touch screen interface with intuitive, easy-to-use software. The simple, lower-cost Operator Terminal (OT) provides a large, easy to read display of measurements and basic gauge functions. The sophisticated Gauge Control Interface (GCI) can manage networks of multiple gauges, providing advanced configuration, data storage/trending and diagnostic functionality. A ruggedized, portable tablet with embedded software for managing multiple gauges, with a convenient wireless connection to the gauges is also available.

On-line Industrial Moisture Gauge On-line Industrial Moisture Gauge On-line Industrial Moisture Gauge

Connectivity and Industrial Interfaces

The Series 9 NIR Industrial Moisture Gauge can be easily incorporated into any new or existing process using its digital I/O and networking options. Up to 16 gauges can easily be networked (daisy-chained) and connected to an existing PLC or SCADA systems using a number of industry-standard protocols including EthernetIP, ProfinetIO, ModbusTCP, DeviceNet and ProfibusDP. In addition, eight digital I/O and analogue outputs are also available.

Accessories and Options

A full range of accessories and options are available to simplify installation and to ensure that the system is correctly specified for dependable and reliable operation for specific applications. Options include air or water cooling/heating, adjustable mounting brackets, cabling options, gating for measurement of discontinuous products, powder vision for measuring powders in ducts, measurement beam size, product temperature sensing and special product viewing ports

Lowest Cost of Ownership

Long-term stability combined with industry best performance, low installation costs and no routine maintenance requirements guarantee the lowest cost of ownership over many years of service.

Operating Principle

The Series 9 Industrial Moisture Gauge measurement sensor works on the principle that moisture molecules within the product being measured discretely absorb a certain wavelength of infrared (IR) light. By pulsing light at these wavelengths onto the product and then capturing and measuring the reflected unabsorbed light on a light-sensitive detector, it possible to determine exactly by how much each wavelength is being absorbed.  Using advanced process algorithms and high-speed signal processing, it is possible to provide a direct moisture measurement for any given material that is presented. The measurement is unaffected by changes in process conditions such as particle size, product height temperature, ambient lighting and relative humidity changes.


The Series 9 NIR Moisture Gauge can be used to accurately measure moisture in many types of materials, some examples of common applications:

      • Acetate
      • Aggregates
      • Bauxite
      • Biofuels
      • Calcium Carbonate
      • Cellulose
      • Cement
      • Ceramics
      • Chalk
      • Clay and clay products
      • Crushed glass (cullet)
      • Coal (crushed/powdered)
      • Detergents
      • Explosives
      • Fertilisers
      • Fibres & polymers
      • Furnace slag
      • Fly ash
  • Gypsum
  • Limestone (crushed)
  • Minerals
  • Ore extraction & mining
  • Pharmaceuticals
  • Phosphates
  • pre-cast concrete
  • PVC pellets
  • Talc (powdered)
  • Sand
  • Sawdust
  • Sinter mix
  • Wood-based panels (MDF, particleboard)
  • Woodchips
  • Zeolite (powdered)

LIMAB UK Ltd help our customers to streamline process efficiency, minimise waste and optimise product quality with the implementation of our non-contact moisture measurement systems such as the Series 9 Food Moisture Gauge.