Definition:
Electromechanical devices are mechanical device operated by an electric motor, solenoid, or actuator, commonly used in safety-critical applications. The final control element would be a classic example.
Key Points:
- Examples include solenoid valves and motor-operated valves.
- A typical instrument (think a temperature instrument) would not be.
- Some instruments may be if it has a function to vacuum out a space to bring a new sample in. Implying there is a pump and a small motor.
Example:
A solenoid-operated emergency shutdown valve (ESDV) is an electromechanical device.
See also: final element
Cited Source:
- IEC 61511-1:2016, Clause 3.2.7.