Moisture in materials
Every material has a certain moisture. By knowing that moisture the production, the storage and the quality of this material can be optimized.
Moisture measurement is needed in all kind of industries such as: concrete, ceramic, food, flower mills, chemical, pharmaceutical and many more.
Examples of products are grains, granulate, gravel, sand, ore, taconite, sugar, rice, coffee, detergents, clay, wood pellets, gypsum and many more.
In order to enlarge our offering for industrial process control, we distribute the products of ACO Automation Components, expert in moisture measurement inside materials. ACO Automation Components proposes a moisture measurement system suitable for material production lines (Food, chemical and pharmaceutical products, ceramics, minerals, biomass...)
The key products of this range are three moisture sensor families called DMMS, BMMS and MMS. For many applications it is necessary to use one of ACO's various Integration Kits. And last but not least, we are also able to offer you a wide range of moisture meters and laboratory moisture analyzer.

Measuring principle
ACO moisture sensors are mainly used for the continuous moisture measurement to determine the residual water content in real-time. The moisture sensors are working with the capacity measuring principle. The surface of the sensor is directly in contact with the measured material. Compared to other methods of moisture measuring this way has a big advantage: it is less affected by contamination, discoloration, particle size and temperature of the material.
Sensors
The very robust ACO moisture sensors are made of high-grade steel. They are designed to cope with the toughest application. With little mechanical effort it can be additionally added to existing plants.
Output signal
Depending on the kind of ACO moisture measuring system or sensor you will have the opportunity to use an analogue output signal and/or Profibus DP measuring signal. Thus it should be compatible with every existing process control system (PLC) and also with the newest ones.
| BMMS
The BMMS moisture measurement sensor combines the innovative advantages of the digital DMMS system and the “simplicity” of analog moisture measurement sensors
Properties
- Capacitive moisture measurement
- Temperature range of measuring material 4° to 80°C
- Temperature compensation of the sensor electronics
- Direct measured-values transfer from the sensor
- Multipoint or polynomial calibration
- Integrated filter settings
- Comfortable, clear BMMScontrol calibration software
- Automatic charge measurement
- Moisture sensor is 1:1 exchangeable. No recalibration necessary
Versions:
- Mesure de température intégrée
- Sensor for measurement in a silo
- Sensor for measurement in a mixer
- Digital measured value transfer RS485

| DMMS
Digital Moisture Measuring System
The DMMS (Digital Moisture Measuring System) by ACO combines great flexibility, easy installation and high comfort.
Properties
- Capacitive moisture measurement
- Jusqu'à 16 capteurs pas unité de traitement
- Temperature range of measuring material: 4°C to 80 °C
- Measured-value transfer: Profibus DP or analoge standard signal (e.g. 4…20mA) optional
- Continuous measurement or batch operation.
Versions:
- Certification for explosion-risk area, Ex zone 22
- Sensor extended temperature range, up to 100°
- Sensor for measurement in a silo
- Sensor for measurement in a mixer
- Sensor housing made of acid proof stainless steel (1.4462)

| MMS
Universal Moisture Measuring Sensor
Moisture measuring sensor with measured-value transfer by standard signal (e.g. 4…20mA or 0..10V).
Properties
- Capacitive moisture measurement
- Temperature range of measuring material 4…50°C
Versions:
- Integrated temperature sensing device (Pt100) optional
- Suitable analogue standard signal available: 4 to 20mA / 0 to 20mA / 0 to 10V
- Sensor with extended temperature range (up to +80°C)
- Sensor for measurement in a mixer
- Sensor with Teflon surface
- Sensor with rubber surface

To learn more about these solutions, click here to seeACO Automation Components web site.
Apart from France and North America, please contact directly ACO Automation Components.
A few examples of applications



Ceramics powder - Wood sawdust - Gypsum



Clay - Salt - Minerals and concrete



Limestone - Sintermix - Brown coal ash


Sewage sludge - Fruit pomace - Glue coating
