KROHNE OPTISOUND 3020C 2wire EN - Manual (Page 22)

1
2
Display
1 2 I2C
Fig. 21: Connection compartment, double chamber housing
1 Spring-loaded terminals for power supply
2 Ground terminal for connection of the cable screen
I2C
1
1 2
Fig. 22: Wiring plan, double chamber housing
1 Power supply/Signal output
5.5 Switch on phase
After OPTISOUND 3020 C is connected to power supply, the
instrument carries out a self-test for approx. 30 seconds. The
following steps are carried out:
l
Internal check of the electronics
l
Indication of the instrument type, the firmware version as
well as the sensor TAGs (sensor name)
l
Output signal jumps briefly (approx. 10 seconds) to the set
fault current
Connection compartment
Wiring plan
Switch on phase
22 OPTISOUND 3020 C - 4 … 20 mA/HART
Connecting to power supply
30507
-EN
-050914