AQUA M A STE R4
| EL EC T R O M AG N E T I C FLO W M E T ER T R A N SM I T T ER | O I/FE T4 0 0 - EN R E V. D
23
Grounding – FET450
IMPORTANT (NOTE)
The grounding arrangements shown in Figure 32 to
Figure 34 are applicable to both cathodic and non-
cathodic protected installations.
Figure 32 AquaMaster4 transmitter mounted in a chamber –
flanged sensor
Figure 33 AquaMaster4 transmitter mounted in a cabinet –
flanged sensor
Figure 34 AquaMaster4 transmitter mounted in a cabinet –
insertion sensor
IMPORTANT (NOTE)
The grounding arrangements shown in Figure 35
are applicable ONLY to:
• cathodic protected installations
• installations where E2 and E3 are different to E1
CAUTION – DAMAGE TO EQUIPMENT
Incorrect installation will result in fault currents
flowing through the meter resulting in unstable
readings.
E
1
E
2
E
1
E
3
>50D
>50D
Conductive pipe
Cathodic potentials E1
MUST
be equal
Insulator
Insulator
Figure 35 Cathodic protected installations with different
cathodic potential generator
Mains power supply (option)
Earth (ground) rod
Earth
(ground) rod
Mains power
supply (option)
Mains power
supply (option)
Earth (ground) rod
Bond probe to
pipe
