Fujimoto FKK 4 Manual Do Utilizador

An arrester is used to protect a transmitter or receiver from an abnormal voltage such as lightning
surges induced into signal lines.  A built-in type arrester is mounted behind the terminal unit.  A
nameplate marked “with arrester” is attached to the terminal unit of transmitter with a built-in
arrester.

Since transmitter and arrester groundings are internally connected together, user have only to
connect the external grounding terminals to ground.
Grounding terminal must be used, in case of the explosionproof or intrinsic safety type
transmitter.

1. Grounding resistance should be 100W or less.
2.  Avoid common grounding with a lightning rod.

Important

The built-in arrester should be used in combination with panel mounting type arrester (type PXC)
for distributor protection.

+

–

Transmitter

(with arrester)

Panel mounting

type arrester

PXC

Distributor

E

1

5

2

6

E

1+

1–

PWM

FCX-C series transmitter

External grounding terminal

External grounding terminal

Grounding terminal

CK+

CK–

+

 –