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Real Time Moisture Sensors

Real Time Moisture Sensors

Real Time Moisture Sensors

Product catalog summary
Introduction
Dryer Master capacitance-based moisture sensors have been providing reliable and accurate moisture measurement for industrial processes for over 30 years.
Applications
The technology is suitable for a variety of applications including whole grains, paddy and processed rice, coffee beans, meals like cornmeal and soymeal, and manufactured pellets such as pet food and animal feeds.
Benefits
  • Continuous and accurate real-time moisture readings for process monitoring and control.
  • Measures complete product moisture, not just surface moisture.
  • Constructed from rugged, food-grade stainless steel.
  • Low maintenance and easy installation.
  • Cost-effective compared to alternatives.
  • Can be installed in-process or in a bypass configuration.
Implementation
Sensors can be purchased individually for connection to a PLC or as part of a complete moisture monitoring solution.
Technology
The sensors are capacitance devices that measure total bulk moisture by transmitting energy from the "fin" to the ground plane. The sensor outputs two signals: relative dielectric behavior and product temperature, which can be processed to generate moisture and temperature readings.
Installation
Sensors can be mounted in-process or in a sample bypass configuration. Installation details depend on the material, measurement range, accuracy required, and physical limitations. A representative sample flow of less than 1 inch per second is recommended.
Specifications
  • Operating temperature range: -18°C to 70°C (0°F to 160°F)
  • Product temperature range: -18°C to 100°C (0°F to 212°F)
  • Dimensions: 8.5”x6”x4.8” (HxWxD)
  • Material: 316 stainless and UHMW
  • Weight: 8 lbs. (3.7 kg)
  • D.C. supply voltage: 18 to 30V D.C.
  • D.C. supply current: 20mA at 24V D.C.
  • Signal outputs: 0 to 10V D.C.
  • Moisture measurement range: 2—45% moisture, wet basis
  • Resolution: 0.01%M
  • Accuracy: ±0.2%M
Calibration
Calibration is crucial for accuracy and reproducibility. It is maintained through routine off-line samples entered via an operator interface. Software can manage calibration, product recipes, and sensor data logging.
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Catalog excerpts

Real Time Moisture Sensors-1

DRYER MASTER Moisture Sensors dryermaster.com Real Time Moisture Sensors Dryer Master capacitance based moisture sensors have been providing industrial processes with reliable and accurate moisture measurement for over 30 years. APPLICATIONS The numerous applications suitable for Dryer Master's moisture measurement technology include: • Whole grains, • Paddy and processed rice, • Coffee beans (raw, roasted, or processed), • Meals (such as cornmeal, soymeal, distillers' grain and flour), and • Manufactured pellets (including pet food, animal feeds, fish feed, and wood pellets). BENEFITS • Continuous and accurate real time moisture readings for process monitoring and control. • Complete product moisture measurement, not just a measurement of surface moisture. • Rugged stainless steel construction that is food grade. • Low maintenance and straightforward installation. • Cost effective and affordable, especially when compared to alternatives. • Can be installed in either an in-process or a bypass type configuration. IMPLEMENTATION Dryer Master moisture sensors can be purchased individually and then connected to a PLC for signal conversion. They can also be purchased as part of a complete solution for moisture monitoring (M2/GM2), state logic control (AM3) or model based drying control (DM510)

 Open the catalog to page 1
Real Time Moisture Sensors-2

Moisture Sensors dryermaster.com Dryer Master “fin type” moisture sensors are capacitance The successful integration of on-line measurement into a devices that respond to the total bulk moisture within your process control strategy depends on two characteristics: accuracy and reproducibility. Both of these characteristics The moisture sensor transmits energy from the “fin” to the are greatly influenced by sensor calibration. ground plane, typically the installation chute or containment Operators or QA staff maintain calibration with routine vessel. As energy is absorbed by “free” water molecules...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.