The track mounted SC11 can convert a controller's DC output signal of either 4 to 20 milliamps or 0 to 10 volts, to a 0 to 20 volt DC signal. Toggling between 4-20 mA or 0-10 V is achieved with an on-board three position DIP (dual in-line package) switch: 4-20 mA - all positions on, 0-10 V - all positions off. Selectra electronic gas flame modulation is a superior alternative to methods such as motor driven butterfly valves. When computer or other process controls are specified instead of standard Maxitrol companion electronic controls, the signal conditioner provides compatibility with Maxitrol modulator / modulator-regulator valves. Signal conditioners and M/MR valves can be configured for direct or indirect fired applications. They may be field installed on existing equipment or specified for new equipment installation.
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