2021 May

Five Considerations for Pumping and Storing Liquid Biofuels

-Dan Wallace, Danbury, CT Why do you need to know about biofuel handling? End users, governments, and private enterprises are looking for ways to reduce carbon emissions while minimizing capital equipment costs, and the equipment impacted ranges from backup diesel generators to industrial boilers. While the customer needs for this fuel are becoming more pronounced, third party testing […]

Watchdog Circuits in Burner Management

-Howard Wells, Preferred Utilities, Danbury, CT Introduction Have you ever seen a PLC-based burner management system and wondered “Why are the inputs turning on and off every few seconds?” This “flashing” of the inputs is a type of error checking for the PLC discrete input channels and is required by NFPA 85 for all non-SIL3 rated PLC-based burner […]