| 摘要 |
The invention pertains to a field unit ( 10 ) for mounting on an actuator ( 12 ) with a pickup device ( 14 ) in the field unit ( 10 ) to register the position of the actuator ( 12 ) and with an indicator ( 16 ) located correspondingly on a movable element ( 15 ) of the actuator ( 12 ) to indicate the position of the actuator ( 12 ), where, when the field unit ( 10 ) is mounted on the actuator ( 14 ), the pickup device ( 14 ) of the field unit ( 10 ) can be linked with the indicator ( 16 ) of the actuator ( 12 ). The invention is characterized in that the pickup device ( 14 ) of the field unit ( 10 ) is in working connection with a locking element ( 18 ), and in that the pickup device ( 14 ) can be held by this locking element ( 18 ) in a first position-the mounting position-and can be released from the mounting position by the actuation of the locking element ( 18 ).
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