| 摘要 |
A two- wire process variable indicator (106, 200) includes a housing (202) having a plurality of terminals disposed therein. The terminals (204, 206) are coupleable to a two-wire process control loop. A power module (202) is coupled to the plurality of terminals (204, 206) to receive current flow from the process control loop. Driver circuitry (210) is coupled to the power module (202) and a microencapsulated electrophoretic display (109, 212) is coupled to the driver circuitry (210). |
