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testo 6651 Ethernet
- 1.3 Commissioning
29
Use of relay as NO contact (NO = normally open)
The busy light (alarm/status light) only comes on when the
relay is switched (closed). Monitoring the functionality of the
alarm circuit is therefore not possible with this switching
operation.
2 Close M 20 x 1.5 screw connection (item (9) of Overview of terminals,
chapter 1.3.3.1, page 24).
250 V AC/DC, 3 A
Alarm/status light
(example of installation)
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