Dust-Rated (Zone 20) Grain Dryer Moisture ...

Dust-Rated (Zone 20) Grain Dryer Moisture Sensor – Hydro-Mix HT-EX

Supplier: Allegiant Milling & Processing Solutions

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A flush-mounted moisture sensor for hot grain, feed and biomass in Zone 20 explosive dust areas – fitted at dryers, conveyors, ducting or mixers with process temperatures up to 120°C. Supplied and supported in Australia by Allegiant.

Zone 20 dust rated, to 120°C

Brand: Hydronix

Where it's used

Materials: grain, rice, animal feed, biomass, organic and agricultural materials
Hazardous dust areas classified Zone 20
Dryers: flush-mounted before or after the dryer
Screw conveyors: on the upstroke of the blade
Mixers: end wall of single/twin shaft mixers
Mixer floors, ducting and conveyors
Processes: batching/weighing, drying, milling/grinding, mixing, pelletising/extrusion, packaging, storage, water/chemical addition

What it measures

Moisture content of hot material passing the sensor face, plus material temperature.

Key features

Certified for explosive dust atmospheres (ATEX, IECEx and NEC/CSA per Hydronix)
Rated for process temperatures up to 120°C
Flush mount with dedicated fixing plate
Selectable measurement modes
Internal temperature compensation
Configure and calibrate remotely via Hydro-Com, Hydro-View or Hydro-Hub

Specifications

Specification	Value
Process temperature	Up to 120°C
Hazardous area	Zone 20 (explosive dust)
Certifications listed	ATEX, IECEx, NEC/CSA (dust)
Supply voltage	15–30 V DC (several sensors can share one supply)
Measurement rate	25 readings per second
Outputs	2 × analogue, RS485 with Modbus, configurable digital inputs/outputs
Accuracy (once calibrated, as published by Hydronix)	0.2% for aggregates, 0.1% in a mixer, 0.5% for other materials
Maximum cable run	100 m (screened 6-pair, 22 AWG / 0.35 mm² cable recommended, e.g. Belden 8306 or Alpha 6373)

Why buy from Allegiant

Allegiant supplies, installs and supports Hydronix moisture measurement across Australia and the Pacific, alongside complete grain processing and sorting systems. Tell us your material, process and installation point and we'll recommend the right sensor and provide a quote.

Where it's used

Materials: grain, rice, animal feed, biomass, organic and agricultural materials
Hazardous dust areas classified Zone 20
Dryers: flush-mounted before or after the dryer
Screw conveyors: on the upstroke of the blade
Mixers: end wall of single/twin shaft mixers
Mixer floors, ducting and conveyors
Processes: batching/weighing, drying, milling/grinding, mixing, pelletising/extrusion, packaging, storage, water/chemical addition

What it measures

Moisture content of hot material passing the sensor face, plus material temperature.

Key features

Certified for explosive dust atmospheres (ATEX, IECEx and NEC/CSA per Hydronix)
Rated for process temperatures up to 120°C
Flush mount with dedicated fixing plate
Selectable measurement modes
Internal temperature compensation
Configure and calibrate remotely via Hydro-Com, Hydro-View or Hydro-Hub

Specifications

Specification	Value
Process temperature	Up to 120°C
Hazardous area	Zone 20 (explosive dust)
Certifications listed	ATEX, IECEx, NEC/CSA (dust)
Supply voltage	15–30 V DC (several sensors can share one supply)
Measurement rate	25 readings per second
Outputs	2 × analogue, RS485 with Modbus, configurable digital inputs/outputs
Accuracy (once calibrated, as published by Hydronix)	0.2% for aggregates, 0.1% in a mixer, 0.5% for other materials
Maximum cable run	100 m (screened 6-pair, 22 AWG / 0.35 mm² cable recommended, e.g. Belden 8306 or Alpha 6373)

Why buy from Allegiant

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Supplier

Supplier: Allegiant Milling & Processing Solutions

Location: Baringa,

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Baringa

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Oct 2026

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