18
5 Connecting to power supply
VEGAMET 861 • 4 … 20 mA/HART
58866-EN-200401
Detail sensor connection 1
+
-
+
-
1 2 3
1 2 3
3
1
6
5
4
2
Fig. 7: Sensor input 1 for two-wire/four-wire sensor (active/passive)
1 Active input with sensor supply for two-wire sensor
2 Passive input without sensor supply for four-wire sensor
2)
3 Two-wire sensor
4 Four-wire sensor
5 Voltage supply for four-wire sensor
6 2 mm sockets for connection of a VEGACONNECT/HART handheld
Detail, digital inputs VEGAMET 861
+ - + -
1 2
+ - + -
3 4
21 22 23 24 25 26
Fig. 8: Connection of the digital inputs
1 Digital input 1 (active)
2 Digital input 1 (passive)
3 Digital input 2 (active)
4 Digital input 2 (passive)
Connection assignment digital inputs
21 22 23
+
-
1
3
21 22 23
+
-
2
4
3
Fig. 9: Connection assignment of the digital inputs (active/passive)
1 Active input for floating switching contact
2 Passive input for switching contact and external voltage supply
3 Switching contact
4 External voltage source
5.6 Switch-on phase
After switching on, the device first carries out a short self-check.
•
Internal check of the electronics
2)
Passive input not available for Ex version
