The moisture in solids is an important parameter which strongly influences the quality of the product and can increase the economic efficiency of a production fundamentally. HUMY 3019 is in many processes, successfully in use among others at sugar, tobacco, grain, malt, flour, coal, sand, wood shavings, dried food, fertilizer, powder, pigments, plastic granules. As installation places conveyor belts, screw conveyors, silos, funnels are particularly suitable. The In-Line moisture measurement is also possible in batch processes. At the measuring the relative permittivity and the high-frequency recession of the solid is measured in the high-frequency range. The measurement procedure makes a short and simple calibration as well as a high precision of up to 0.1% possible. The measuring probe transmits the data digitally. This makes the measurement assignment disturbance insensitive and allows a distance of the sensor to the end judging unity up to 1000 m. The system supervising itself has an integrated data lugger besides an automatic compensation of temperature and ageing drift, digital and alarm exits. The device is working by two analog output for the measured values and can be used automatically by the two digital inputs or the RS485-interface. The calibration will be done be the included software. For product or process changes different product parameters can be stored.
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The technology is based on a modified triboelectric principle detecting particles interacting with the sensing rod and such particles just passing the rod. Build up on the rod surface will not be detected, only moving particles generate a flow rate proportional signal which is monitored by the electronic. Installation is done on the clean gas side downstream the filter at a metal duct by welding on of a thread bush boring through the duct wall and screwing in dust watch. On and off distance should this 3-fold of the pipe diameter area, the sensor length 1/3 to 2/3 of the pipe diameter. The device isn’t usable at products, which build an electric conductive coating between sensing rod and pipe wall, caused of abrasion.
The measurement procedure of the FlowSwitch 510M is based on the physical principle of the Doppler-Effect. Therefore the sensor sends out a microwave field. If solids move through this field, the microwaves are reflected and received by the sensor again. This is converted into a switching process. All parameters, like sensitivity, damping, filter time and hysteresis are freely adjustable and, can be configured, due to the bargraph, with an exact value. This enables a variable determination of the switching point resp. a switching process for different mass flows. The installation can be carried out within pipes, on conveying belts, on fall plates, chutes or at similar transport facilities. The assembly is simply, economical and easy also afterwards possible.
Main Benefits: Reliable microwave measuring principle Self-monitoring with additional relay For level monitoring Adjustable sensitivity, damping, hysteresis and filter function Adjustment via 2 key buttons and bargraph Easy installation by compact form Process connection with flange, thread, etc.
Our solid flow meter MF 3000 is designed for flow measurement in metallic pipes from a few kg/h to many t/h. The system is suitable for on-line measurements of powders, dusts, pellets, and granules from 1 nm up to 2 cm in pneumatic or free fall conditions. The measurement principle of the MF 3000 is based on the physical Doppler-Effect, whereas the sensor generates a uniform field in the microwave frequency range inside the pipe. These microwaves are being reflected by particles passing through the pipe. Calculation of frequency and amplitude changes allows for accurate determination of solid flow. Non-moving particles like dust accumulation are excluded from the calculation. The installation is simple and cost effective via a welded branch, through which the sensor is screwed flush to the inside of the pipe. The sensor is connected to a DIN-rail mounted transmitter with 4…20 mA, RS232 and RS485 output. The calibration is easy by using our MF–SMART software and a reference flow value.