Humidity Detector PCE-MWM 300P
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Description
Description
PCE-MWM 300P Humidity Detector / continuous moisture measurement in pellets, wood chips (variably installable/attachable)
In the industrial production of wood pulp boards (PB, MDF, OSB) or pellets, the on-line measurement of the moisture/density of the wood material is essential to ensure that the processes inThe use of a humidity detector, as opposed to a humidity sensor, provides a very consistent and high product quality while reducing operating and maintenance costs. When connected to a controller or a process control system, the operator has the opportunity to interact with the measurement results in real time. This means less downtime, for example in pressing or drying processes the loss of material is reduced. The payback period of the humidity detector for pellets and wood pulp is therefore very small, only a few weeks.

In the online moisture measurement in production processes, the humidity detector is valuable in many process stages: in the refining of wood pulp, during resin treatment, during pressing/dewatering
The more accurate the on-line moisture measurement of the wood pulp and the moisture control, the smoother the end product (MDF, OSB boards) produced from it later on. In addition, the drying process (dryer control) itself is very costly. Thus, there is the greatest savings potential in this area. Too much drying may lead to not only a waste of
Areas of application for the humidity detector include fiberboard (PB, MDF, OSB), sawdust, wood shavings, wood lamellae, wood panels, wood pellets and wood chips (incineration). The use of a humidity detector can also be used to effectively control the feed rate when burning wood pellets in industrial furnaces or firing systems.
Specification
| Technical Data: | |
| Measuring Range | 0 ... 100 % |
| Maximum permissible error (absolute) | Δ= 0.035 + 0.05 x W |
| Temperature measurement range | -40 ... +150 °C / -40 ... +302 °F |
| Operating temperature range | -20 ... +80 °C / -4 ... +176 °F |
| Working mode | continuous operation |
| Measuring interval | 0.2 s |
| Power supply | 24 (18 ... 36) VDC |
| Current consumption | 200 mA |
| Warm-up time (start-up) | 90 min |
| Outputs | RS 485 Modbus RTU, 4-20 mA [RS485: max. cable length 1000 m; 4-20 mA: max. cable length 100 m (max. cable length up to the PLC) |
| Inputs | 2 x digital 24 VDC |
| Dimensions (sensor) | 108 х 120 mm / 4.3 x 4.7 in |
| Dimensionen (electronics unit) | 255 х 170 x 60 mm / 10 x 6.6 x 2.3 in |
| Protection (sensor) | IP67 |
| Protection (electronics unit) | IP54 |
| Weight (sensor) | 3.5 kg |
An integrated temperature sensor continuously measures the temperature of the wood products (The readings are displayed. These are used internally for temperature compensation). | |
| Please note that we will need further information to provide a final price for supply and fit. We will need to know what materials are to be measured, we will need samples of the material, and we will need a technical drawing showing where the sensor is to be installed. | |