Product Brief

The MAXIMIN Level Alarm is a non-contact, radiation-based sensor designed for precise material level detection in silos and bunkers without any modifications to the container walls.

Product
Description

The MAXIMIN Level Alarm operates similarly to a light barrier but uses a radiation beam that can penetrate through walls to detect whether the beam path is free or blocked by the material inside.

It consists of a radiation source encapsulated in a double stainless steel housing, a highly sensitive detector with NaJ/TI scintillator, and an advanced evaluation module with microcontroller control for automatic calibration and signal processing.

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Product
Applications

Mining & Minerals

Monitoring ash content and slurry levels during processing

Chemical and Pharmaceutical

Non-contact level detection of powders and granular materials in storage and processing vessels

Agriculture

Used for precise soil moisture measurement to optimize irrigation and crop management.

Construction and Building Materials

Level monitoring of cement, sand, and other bulk construction materials in silos.Preventing downtime by accurate inventory sensing

Power and Energy

Measurement of coal and ash content in power plant bunkers and feeders, Monitoring bulk material levels for combustion and processing control

Food and Beverage Industry

Monitoring bulk dry material levels in storage silos like flour, sugar, and other ingredients

Key
benefits

Detection

Accurate level detection without physical contact, preventing contamination and wear.

Calibration

Automatic and secure calibration between full and empty conditions for reliable switching points.

Minimal Radiation

Minimal radiation emission ensures operator safety.

Versatile Installation

Easy installation without the need to alter silo or bunker walls.

Installation
Types

  • Designed for external mounting on silos or bunkers with no need to modify walls or contact the material medium.

Mechnical & Technical
Specifications

Power Supply

Standard 230V, optional 115V, 24V AC/DC

Digital Outputs

1 potential-free relay contact for alarm, 1 for watchdog function

Operating Temperature

 0°C to 55°C

Evaluation Unit Size

50.5 mm (W) x 132.5 mm (H) x 160 mm (D)

Shielding

Heavy lead-filled steel case with Cs-137 radioactive source, approx. 40 kg

Why Choose Our Level Alarm?

The system uses a radiation beam passing through the vessel walls; the presence or absence of material interrupts or allows the beam to reach the detector. The microcontroller in the evaluation module automatically calibrates the system and determines secure switching points, ensuring reliable full/empty detection. Radiation levels are minimized and shielded for safe operation.

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