Contract Indicator Light is a display device that is widely used in automation control systems. It is mainly used to indicate the status of the equipment or system, such as switching status, warning status, error status and so on. The contract indicator can help the operator to keep abreast of the equipment operation status and improve the efficiency and safety of the equipment operation.
There are many types of contract indicator lights, which can be classified according to many aspects such as color, shape, size and brightness. Three of the most common are red, yellow, and green. Red lights are usually used to indicate a warning or error condition, such as the device overheating, lack of oxygen, etc. Yellow lights are usually used to indicate that the device is in a standby or ready state. The green light is usually used to indicate that the device is working normally.
Contract indicators have a wide range of applications, which are used in many fields, such as machinery manufacturing, electronic products, transportation, medical equipment and so on. In machinery manufacturing, contract indicator lamps are used to indicate the status of equipment or machines to facilitate operators to understand the operating status of the equipment. In transportation, contract lights are used to indicate the status of vehicles, such as lights, turn signals, and so on. In medical devices, contract lights are used to indicate the operating status of devices, such as oxygen machines, electronic blood pressure monitors, etc.