Hydro-Mix - Model XT - Measure Moisture Sensors for Moisture Measurement
From Sensor - Bulk Solids
The Hydro-Mix XT has been designed to measure moisture in flowing bulk solids such as animal feed, grain, rice, pulses and liquids. The sensor is constructed from food safe materials and can be easily installed in ducting, conveying and mixing systems in process control environments.
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Overview
Comprising a single, intelligent unit that contains all functionality including signal processing, smoothing and averaging, the Hydro-Mix XT accurately measures the moisture content of material passing over the ceramic faceplate. The sensor is designed to be fitted flush with the internal wall of ducting, a conveyor, a mixer or a pressurised vessel (1 Bar Vacuum to 5 Bar pressure) and is easily installed using the supplied Hydronix Fixing Plate.
Remote configuration, calibration, diagnostics and firmware upgrades can easily be undertaken using Hydronix Hydro-Com software. This allows direct integration with any control system without the requirement of any other interface unit. Combined with on-board functionality such as signal processing, smoothing and averaging and with it's linear output, the Hydro-Mix XT is simple to integrate with any control system using industry standard interfaces.
Features
The Hydro-Mix is a digital moisture sensor that has been designed to fit flush with the floor of a mixer or conveyor. It will accurately measure moisture content of the material at 25 times per second as it passes across the ceramic face plate.
The Hydro-Mix XT can be used in food processing environments.
Digital TechnologyDigital technology provides precise, linear moisture measurement, measuring at 25 times per second.
Advanced Digital Signal ProcessingThe sensor response may be adjusted remotely using the Hydro-Com software to minimise the effects of noise of the measured signal. Advanced Digital Signal Processing provides a clear signal with a rapid response.
Measurement ModesChoice of measurement modes for optimising sensor performance in a variety of applications and material types.
Fully Temperature Compensated MeasurementThe sensor internally adjusts for any measurment changes due to temperature fluctuations
Easy to InterfaceTwo analogue outputs and digital RS485 communications and configurable digital inputs / output make the sensor simple to integrate into a control system.
Temperature output is available to provide a readout of material temperature.
Wear LifeUnder normal use and regular maintenance, the sensor will last for many years.
Accuracy of MeasurementAll measurements may, if required, be calibrated to an accuracy of +/- 0.2%. If used to reach a target the accuracy can be better than 0.1%
Sensor ConfigurationThe Hydro-Mix XT can be remotely configured using Hydro-Com diagnostic software. All readings and sensor parameters are available including the type of output and filtering characteristics.
CalibrationThe sensor may be internally calibrated using the Hydro-Com software, or the linear output may be calibrated within the control system or by use of the Hydronix Hydro-View calibration unit.
Simple Power RequirementsThe Hydro-Mix XT may be powered from a 15-30V dc supply. Multiple sensors may be driven from a single power source.
The Hydro-Mix XT is a digital microwave sensor des...
The Hydro-Mix XT is a digital microwave sensor designed to measure moisture in manufacturing industries that use mixers, dryers, conveyors and ducting during processing. Typical applications that use this sensor are varied but include animal feed and grain processing. The Hydro-Mix XT is also suitable for meausuring moisture in liquids or pressurised environments
- Body: 316 Stainless Steel (Food Safe)
- Faceplate: Ceramic (Food Safe)
- Internal Seals: FDA EPDM Approved O-Rings
- Fixing Plate O-Ring: FDA EPDM Approved
The Hydro-Mix XT is flush mounted with the internal wall using the Fixing Plate Kit.
Analogue OutputsTwo configurable 0-20mA or 4-20mA current loop source available for moisture and temperature. May also be converted to 0-10V DC.
Digital Inputs/OutputTwo configurable digital signals available for averaging and alarm functions.
Digital (Serial) CommunicationsOpto-isolated RS485 2-wire port. Uses Hydro-Com communications protocol for read/write access to sensor parameters and values. RS232 converter, Ethernet and USB interfaces are also available.
- Moisture: 0-100%, material dependant.
- Depth: Approx. 75-100mm, material dependant.
Continuous: 0-60°C. The sensor will not measure in ice.
Refresh RateOutputs are updated 25 times per second.
ConnectionsThe sensor is fitted with an integrated 4m cable for termination in a junction box. Extension cables are available.
Power Supply+15Vdc to +30Vdc. 4W
Connections
The Hydro-Mix XT is a flush mount moisture sensor that can be connected to a control system in 2 ways: analogue and digital. The RS485 serial interface allows up to 16 sensors to connect directly to a control system via a serial communications link. There are 2 analogue outputs which can be configured to 4-20mA, 0-20mA (0-10V), 1 configurable digital input and 1 configurable digital input / output. These different options provide the system integrator with the flexibility to select the most suitable method of connecting to their control system.
There are various options for interfacing between the sensor and the control system using a Hydronix approved Ethernet, USB or RS232/RS485 adapter. Alternatively, the Hydro-View moisture display can be used to provide real time on-line process measurements including both moisture and temperature. In it's simplest configuration the analogue output from the Hydro-Mix can be connected to a Scaleable Current Loop Display to display the current moisture.
Cabling
Cabling
The Hydro-Mix XT has an integrated 4m cable for termination in a junction box enabling the sensor signal to be sent to a Control System or PC for configuration and calibration.
Recommended field cabling:
- Six pairs twisted (12 cores total) screened (shielded) cable with 22 AWG, 0.35mm2 conductors
- Screen (shield): Braid with 65% minimum coverage plus aluminium/polyester foil
- Recommended cable types: Belden 8306, Alpha 6373
- Maximum recommended cable run: 100m, separate to any heavy equipment power cables
Installation and Mounting
The Hydro-Mix XT digital microwave moisture sensor can be mounted in many different locations where there is a continuous flow of material across the ceramic faceplate. These include drying, ducting, conveying and mixing systems. The sensor is flush mounted with the internal wall of the installation ensuring uninterrupted flow of the material as it passes across the sensor.
Brief details for mounting the Hydro-Mix XT sensor in different types of mixer can be found below, and full details regarding both installation and calibration can be found in the User Guide.
Ducting Systems
Ducting Systems for the Hydro-Mix XT and the Hydro-Mix HT
Hydronix has designed a system specifically for the Hydro-Mix XT and Hydro-Mix HT moisture sensors that enables them to be easily installed into new or existing ducting. This makes it simple to ensure that the sensor is installed in exactly the right position to achieve the most precise moisture measurement results. Hydronix recommends that our system is installed in all ducting applications as it will allow us to easily support the moisture sensor.
Manufactured from stainless steel, the Hydronix Ducting System ensures that a stable flow of material such as grain, rice and pulses is maintained across the Hydronix sensor. The unit diverts a portion of the main flow of material across the measuring surface of the sensor and is designed to be full and overflowing when the sensor is measuring. Each ducting system comes with three different sized outlet baffles which can be inserted to achieve a stable flow.
The ducting is available in two versions, enabling installation into either vertical ducting or ducting that is angled between 30° - 50° from the vertical. Installation is simple, just requiring a hole to be cut into the ducting where the Hydronix system is to be mounted. The vertical and angled ducting systems have options for installation into both square and round ducting.
Both systems have a material sampling point for sensor calibration purposes.
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