Energy Technologies Inc. | Online Elemental and Process Analyzers

Industrial Process Analyzers for Coal, Cement, Biomass, Plastics, & More

Energy Technologies Inc. (ETI) specializes in the design, manufacturing, installation, and servicing of advanced online analyzers and process control systems for bulk materials. Our industry-proven solutions are trusted across the coal, cement, minerals, and biomass fuel sectors to deliver real-time measurements of key parameters—including elemental composition, ash and moisture content, heating value, and material weight—as products move through conveyors or piping systems.

By providing continuous, accurate analysis, ETI analyzers enable operators to optimize material blending, reduce waste, and maintain consistent product quality.

Elemental Analyzer

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Ash Analyzer

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BTU Meter

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Sort Gates

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Products

ETI offers a full line of online analyzers and process control equipment designed to optimize the handling of bulk materials. Our products include PGNAA systems for full elemental analysis, dual-gamma analyzers for ash, moisture, heating value, and weight/density, and single-gamma analyzers for weight and density. These systems deliver real-time data, allowing operators to make immediate, data-driven process adjustments.

In addition to analyzers, ETI designs and manufactures high-speed sort gates and custom sorting/blending equipment. These automated systems integrate with ETI analyzers or existing plant controls to sort or blend material streams based on live analysis data—improving efficiency, product consistency, and overall process control.

PGNAA Elemental Analyzer for Coal and Cement

Full Stream Elemental Analyzer

The Model 730 Elemental Analyzer combines a Prompt Gamma Neutron Activation Analyzer (PGNAA) and an Ash/Density/Moisture gauge to measure elemental content, moisture, weight, and ash of materials as they are transported on a conveyor.

Dual-Gamma Ash Analyzer

Ash Analyzer

The Model DGA-410 /DGA-410M Dual-Gamma Ash Analyzer (Ashmeter) is a registered nuclear gauging device for measuring ash content, weight, and optionally, moisture content of bulk materials.

Nuclear Belt Scale

Nuclear Belt Scale

The Model 500 Nuclear Belt Scale /Density Meter measures the weight of bulk material as it travels on a conveyor belt.



Slurry Analyzer

Slurry Analyzer

The Model 520 Slurry Analyzer is a registered nuclear gauging device for measuring ash and density of coal slurries inside piping.

ETI BTU Meter

BTU Meter

The Model 510 BTU Meter is a registered nuclear gauging device for measuring ash, moisture, heating value, and weight of coal as it travels through a boiler feeder pipe.

Sort Gate

High Speed Sort Gate

The Model 2000 High Speed Sort Gate is a rugged gate assembly for separating materials based on quality. The gate works in conjunction with ETI's Dual-Gamma Analyzer or Process Control Analyzer, and is automatically controlled based on the analyzer measurements taken vs. the set-points controlled by the operator. Manual controls are also supplied.

Units Installed

Sort Gates
Dual-Gamma Analyzers
Elemental Analyzers
Other Analyzers

Services

Field Service

Field Service & Maintenance

Reliable performance is essential—ETI ensures your equipment stays online and operating at peak efficiency. Our experienced factory-trained service technicians are available for both on-site support and remote diagnostics.

Whether responding to technical issues or performing routine maintenance, our team can connect directly to your systems through secure VPN access, providing fast, efficient service when and where you need it.

Radiation Services

Radiation Services

ETI provides complete radiation support services to ensure safe, compliant, and efficient operation of nuclear-based measurement systems.

Our offerings include leak testing, radioactive source replacement, and assistance with regulatory compliance for both ETI equipment and third-party nuclear gauges.

Analyzer Installation

Installation

ETI provides complete on-site installation and configuration of your equipment, ensuring a smooth integration into your existing operations. Our team works closely with your engineers to meet all site-specific requirements and compliance standards.

We also supply detailed technical guidance and drawings to support any work performed by your in-house team or external contractors.

Maintenance Agreements

ETI offers maintenance agreements on a quarterly, bi-annual, or annual basis. A maintenance agreement guarantees periodic service visits, radiation leak testing, and unlimited remote support. Remote support is accomplished through a VPN connection permitting an ETI technician to access your system's computers and devices to perform troubleshooting, diagnostics, calibrations, and upgrades.

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General Service

Dual-Gamma, Process Control & BTU Meter Service

  • • Radiation leak tests
  • • Calibration
  • • Computer maintenance
  • • Database maintenance
  • • Software upgrades
  • • Inspection & general maintenance
  • • Unlimited remote support

FSEA Service

Full Stream Elemental Analyzer Service

  • • Radiation leak tests
  • • Calibration
  • • Computer maintenance
  • • Database maintenance
  • • Software upgrades
  • • Inspection & general maintenance
  • • Unlimited remote support
Radiation Safety Service

Radiation Safety Service
(Any Nuclear Gauge)

  • • Radiation leak tests
  • • Shutter tests
  • • Source replenishment
  • • Radiation Safety Training
  • • RSO & User Training
  • • Physical Inventory
  • • Troubleshooting, repair, & decommissioning


Frequently Asked Questions

What is "Online Analysis"?

Online vs. Offline

Online analysis is the measurement of material characteristics in real-time. ETI's analyzer products use a no-contact non-destructive...more...

How will an analyzer help my process?

Instantaneous results; immediate actions

ETI's analyzers provide near real-time feedback, allowing process control decisions to be made as material is being processed...more...

Which analyzer do I need?

A guide to equipment selection

The table provided here shows the capabilities and comparisons of ETI's analyzers.

Open Document

What is SGA, DGA, & PGNAA?

Definition of terms

Single Gamma Analysis, Dual-Gamma Analysis, & Prompt Gamma Neutron Activation Analysis. These terms are used throughout this site and are defined here for clarity...more...

Does flow rate affect analysis?

Flow rate has no effect on analysis.

The analysis process begins with the bombardment of the material on the belt with thermal neutrons...more...

How are ETI analyzers calibrated /recalibrated?

An explanation of the calibration process

ETI analyzers are calibrated using static samples before and after installation, and dynamic comparisons after commissioning...more...

About ETI

Founded in 1994 in Oak Ridge, Tennessee, Energy Technologies Inc. (ETI) began as a division of SAIC, specializing in nuclear analysis systems for the coal industry. Over the years, ETI has grown to serve a broader range of industries, including cement production, biomass processing, and rare-earth element extraction. Today, our headquarters are located in Maryville, Tennessee.

All ETI products are designed, built, and tested at our Maryville facility. We provide full-service global support—installing and maintaining our equipment across North America, Europe, Asia, and Australia. Remote assistance is available via secure connections, ensuring reliable system performance wherever our analyzers are deployed.

Our comprehensive services include custom system design, turn-key installations, calibration, ongoing maintenance, and certified training in the handling of radioactive materials.

CONTACT INFORMATION

Address

1741 Triangle Park Drive
Maryville, Tennessee, USA
37801-3750

Phone

865-927-9330

Email

info@energytechinc.com

ETI Headquarters Facility in Maryville, TN