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Why won’t my furnace heat? If your furnace isn’t heating at all, start here: Go to the control cabinet and turn the control power and the element power off. Then turn first the control power and then the element power back on. You should hear a “clunk”. That’s the contactor (image right) allowing power to […]
READ MOREFive Things you should know about Furnace Startup Control Parameters. Deltech is responsible for the initial configuration of your temperature and limit controllers prior to the shipment of your furnace system. This includes setting the thermocouple type, temperature scale, upper and lower temperature limits, PID values, and events. Should you wish to verify or change […]
READ MOREMeltdown! How to avoid a furnace disaster by using the safety features of the furnace system No one wants to hear “furnace” and “disaster” in the same sentence. Your new Deltech furnace control system was supplied with a limit controller to help you avoid one kind of catastrophe. A limit controller is a relatively inexpensive […]
READ MOREDangers of manual mode furnace operation… Your high temperature lab furnace system was supplied with a programmable temperature controller which allows you to input numerous programs with various segments such as “ramp”, “soak”, and “repeat”. You can then, for example, select program #1 for product #1 and walk away, free of the need to monitor […]
READ MOREFollowing is a brief introduction to how the main components of a Deltech Furnaces resistance heating system work together. The main components are the (1) control system, including the temperature controller and control thermocouple; power control system (including SCR power controller, current transformer, and ammeter); transformer; and overtemperature protection circuit (including a limit controller, contactor, […]
READ MOREWe’ve been asked why we control the power to molydisilicide heating elements using not only a phase angle fired SCR power controller, but also an isolation type stepdown transformer. After all, the SCR will do a good job of regulating the volts and amps required to fire the load, and the transformer is an […]
READ MOREDeltech is a family owned small business incorporated in 1968. Members of the Stevenson family are part of the day-to-day operations in management, sales, engineering, and production.
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