020mA

020mA is a placeholder or example value often seen in technical documentation, particularly within the fields of industrial automation and electronics. It represents a current of 20 milliamperes (mA). The "020" prefix might indicate a specific channel, a data point, or a default setting within a system, rather than a unique identifier for a specific device or concept. The core of the value is the 20mA, which is a common current level used for signaling and power transmission in various applications.

In industrial control systems, 4-20mA current loops are widely employed for transmitting sensor readings and control signals. A 20mA current in such a system typically represents a specific condition, often the maximum reading or a fully active state. For example, a temperature sensor might output 4mA at its lowest calibrated temperature and 20mA at its highest. Similarly, a control valve might be positioned at 0% open with 4mA and 100% open with 20mA. The "020mA" notation, therefore, likely refers to this specific 20mA level within such a context. It's important to understand the surrounding system or documentation to fully interpret the meaning of "020mA."