22
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
…5 Installation
Grounding – FET410/430
IMPORTANT (NOTE)
The grounding arrangements shown in Figure 28 to
Figure 30 are applicable to both cathodic and non-
cathodic protected installations.
Figure 28
Mains power supply (option)
Earth (ground) rod
AquaMaster4 transmitter mounted in a chamber –
flanged sensor
Mains power supply (option)
Earth
(ground) rod
Figure 29 AquaMaster4 transmitter mounted in a cabinet –
flanged sensor
Mains power supply (option)
Earth
(ground) rod
Bond probe
to pipe
Figure 30 AquaMaster4 transmitter mounted in a cabinet –
insertion sensor
IMPORTANT (NOTE)
The grounding arrangements shown in Figure 31
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 31 Cathodic protected installations with different
cathodic potential generator
