VEGA VEGASON 66 4 … 20 mA_HART four-wire - Manual (Page 28)

4 ... 20 mA
PE
/ L
/ N
L1 N GND
1 2
1 2 3 4
4...20mA IS
Fig. 20: Wiring plan, double chamber housing
1 Voltage supply
2 Signal output
5.4 Switch-on phase
After connecting VEGASON 66 to power supply or after a
voltage recurrence, the instruments carries out a self-check for
approx. 30 seconds:
l
Internal check of the electronics
l
Indication of the instrument type, the firmware as well as
the sensor TAGs (sensor designation)
l
Output signal jumps briefly (approx. 10 seconds) to the set
fault current
Then the corresponding current is transmitted to the cable.
3)
3) The value corresponds to the actual measured level as well as to the set-
tings already carried out, e.g. default setting.
Wiring plan
Switch-on phase
Connecting to voltage supply
28 VEGASON 66 - 4 ... 20 mA/HART - four-wire
28783
-EN
-060731