ESC is continuously focused on the safety of our employees and customers. Learn more about our COVID-19 response plan and find answers on frequently asked questions.        Learn More

Data Controllers

ESC Spectrum provides industry-leading products and services for customers in the electric power and petroleum industries.

Our Data Acquisition Systems (DAS) are the premier Continuous Emission Monitoring Systems (CEMS) in the U.S.  The StackVision DAS software and the 8864 Data Controller hardware unite to create the most robust, reliable DAS solution available for air compliance monitoring needs, including CEMS, continuous opacity monitoring systems (COMS) and continuous parametric monitoring systems (CPMS). The Prism DAS software helps customers meet current and future regulatory agency reporting requirements. 

RATAView software helps stack testers perform Relative Accuracy Test Audit (RATA) tests accurately and efficiently to meet complex regulations, including requirements around testing frequency, calculations, data gathering and data retention.

Our hardware and software solutions are backed by a wide range of services, including Reporting, Engineering and IT services. We provide expert CEMS Services including quarterly maintenance, training, mobile testing, stack testing, repair, calibration and more.

The 8864 Data Controller

The ESC Spectrum 8864 Data Controller is a sophisticated, powerful hardware bridge between StackVision software and your emissions monitoring rack. This industry leading CEMS data controller provides reliable, robust data collection, computation and storage capabilities. This hard-working device accurately and securely acquires, stores and protects your CEMS data from communications failures within your DAS system.

8864 Information Sheet


Ideal for Ambient Applications

The 8864 Ambient Data Controller is ideal for ambient applications. This rock-solid data controller has a demonstrated Mean-Time-Between-Failure of over 20 years and is considered the “workhorse” of the industry.

8864 Ambient Information Sheet


New Features and Expert Support

The 8864 Data Controller provides your facility with dependable, efficient emissions monitoring capabilities backed by expert customer support and an extensive library of resources. Compared to previous ESC Spectrum data controllers—including the popular 8832 Data Controller —the 8864 is 10x faster and contains 100x the data storage.

Compare the 8864 and 8832


Wide Range of Communications

The 8864 is an agile, sophisticated tool that can acquire emissions data from analyzers—and operational data from control systems—via digital inputs, analog inputs, and Modbus over Ethernet. It will also output data, flags, and commands through these channels. With plenty of power and speed available, the 8864 can be your one-stop shop for multiple data inputs and outputs.

Request a Demo

Ready to Learn More?

Contact the ESC Sales Team. We'd love to hear from you! sales@envirosys.com or 512-250-7902

Contact us