Publicité
Les langues disponibles
Les langues disponibles
Wiring plan
Switch on phase
LEVEL TRANSMITTER 8177 • 4 ... 20 mA/HART
1
Fig. 17: Wiring plan, single chamber housing
Voltage supply/Signal output
1
5.4 Switch on phase
After connecting LEVEL TRANSMITTER 8177 to power supply or after
a voltage recurrence, the instrument carries out a self-check for
approx. 30 seconds:
Internal check of the electronics
l
Indication of the instrument type, the firmware as well as the
l
sensor TAGs (sensor designation)
Output signal jumps briefly (approx. 10 seconds) to the set fault
l
current
Then the corresponding current is outputted to the cable (the value
corresponds to the actual level as well as the settings already carried
out, e.g. factory setting).
5 Connecting to power supply
Display
1
2
5
6
7
8
I 2 C
21
Publicité
