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Figure 4: armored cable gland installation, Area must be declassified during installation, Ex-6175 – ENMET EX-6175 User Manual

Page 7: Enmet corporation

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EX-6175

ENMET Corporation

4

Important

Connect enclosure

earth-ground to a high

integrity earth ground

ATEX certified Ex d armoured

cable glands

- +

PSU

- +

Aout

0

V

R

x

T

x

RS232

Conduit

or Shielded Cable

Conduit

or Armoured Cable

Mount vertically

as shown

N

/O

C

O

M

N

/C

Relay 1
Alarm 1

N

/O

C

O

M

N

/C

Relay 2
Alarm 2

N

/O

C

O

M

N

/C

Relay 3

Fault

3.2 Wiring the EX-6175 to a Control Unit

C

AUTION

:

Area must be declassified during installation.

If the

EX-6175

is installed in a hazardous location as defined by the National Electrical Code, then ALL wiring must be in

accordance with the National code and any local governing codes.

Open the enclosure, and remove the 2 screws that retain the display overlay to the circuit board.

Turn cover securing stud counter-clockwise to allow cover to open.

Remove cover by rotating counter-clockwise.

Figure3: Access to EX-6175 for Connection to a Control Unit

The cable entry threads are 20mm, ½” or ¾” NPT female.

The

EX-6175

enclosure is manufactured from die cast aluminum*. Therefore, the use of glands, conduit fittings and blanks

made from brass should be avoided because if moisture is present, bi-metallic corrosion may occur due to the chemical reaction
between the two materials.

Glands and fittings plated with nickel, tin or zinc will provide improved protection but in harsh environments the use of
stainless steel is recommended.

Figure 4: Armored Cable Gland Installation

Relays

- three relays are provided:

Alarm 1 and Alarm 2 are associated with the alarm points.

Alarm 3 is associated with fault conditions.

All relays are factory set to de-energize state non alarm.