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2.5.1 Surge Protection (Continued)
CAUTION: This or any installation can not protect against a direct lightning
strike, or secondary strikes of sufficient magnitude. AMETEK PMT Products
7
cannot accept liability for damage due to lightning or secondary surges.
LIMITS OF ACCEPTABLE WORKMANSHIP ARE DEFINED IN MS-645-A.
2.5.2 Lightning Protection Wiring
Here is a typical wiring arrangement to a typical controller/ meter. Shown
here are connectors to the AMETEK PMT Products DDMC Controller in
the Levelmate III NEMA 4X enclosure option.
5A/250VAC
Slo blo fuse
Wiring w ith Lig htning
Pro tec tio n Op tio ns
7
6
RED (EQ UIP 1)
BLACK (LINE 2)
BLACK (EQ UIP 2)
RED (LINE 1)
ANALOG
OUTPUT
LIG HTNING
PROTECTOR
BLACK (LINE 2)
RED (EQ UIP 1)
RED (LINE 1)
BLACK (EQ UIP 2)
TRANSMITTER
LIG HTNING
PROTECTOR
BLACK
WHITE
G REEN
CUSTOMER G ROUND
WIRE FOR
LIG HTNING PROTECTORS
# 8 AWG
CUSTOMER
POWER
Fig ure 2-4
6
5
CUSTOMER
CONNECTIONS
5A/250VAC
Slo blo fuse
CUSTOMER G ROUND
LIG HTNING PROTECTORS
Fig ure 2-5
Wiring w ith No Lig htning
Pro tec tio n Op tio ns
7
5
Installation
4
RED
CONNECTIONS
BLACK
RED
BLACK
BLACK
WHITE
G REEN
WIRE FOR
# 8 AWG
CUSTOMER
POWER
4
CUSTOMER
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