Bailey 820 Line of controller cards, TG30 Bias + Meter Station (analog).
The Bailey Controls TG30 (often part of the Bailey 820 control system line) is an analog bias and manual loading/meter station. It provides operators with a way to manually adjust (bias) process signals, such as setting a fixed offset, and monitor variables via an integrated analog meter.
Because it is legacy hardware, specific technical details are highly specialized.
Primary Functions
- Manual Bias Control: Allows operators to add or subtract a fixed value/offset (the bias) to a control loop signal.
- Signal Metering: Includes an integrated analog meter for visual tracking of control outputs, inputs, or setpoints.
- Auto/Manual Switching: Often utilized as part of a supervisory control loop (such as boiler or combustion control) to allow operators to take manual control of a process from an automated system.