Emerson EZH and EZHSO Series Pressure Reducing Regulators Manual de instrucciones descargar pdf (Pagina 6)

OS2 NACE

Versions Installation Sealing Connection Mechanical connections

Electrical connections

Common NF NO Connection

C0 IP 68 Without 1/2 NPT cap

C1 Explosion IP 68

Explosion

3 m wire Black Blue Brown Wires

C2 proof IP 65

proof

Explosion proof connector box/PE explosion proof 3 4 5 Screwed wiring

C3 Intrinsical safe IP 68 Intrinsical safe tight-shut connector A B C Welded wiring

MAINTENANCE (BM)

Tools :

• Spanner 11 (screw 7) and 13 (or 14) (screw 8)

• Screwdriver

• Control

Æ 1

and 2

stage mechanism releasing

Æ Packing gland is tigh shut

Æ Yoke greasing

• Disassembly

Æ Check that assembly is not under pressure

Æ Manual release of slam shut (drawing n° 7)

Æ Manually press on the releasing stem pin D1 or D2

(drawing 7, item 1) parallel to the BMS axe

Æ Unscrew the travel stop

(screwdriver)

Æ Unscrew the BM fastening screws

(flat spanner 11 (screw 7) and 13 (or 14) (screw 8)

Æ Disassemble the mechanism box (BM) from the connector

by unlocking the yoke

• Assembly

Æ Proceed in reverse order to disassembly

OPTIONS (BM)

• Remote alert (on BM 1 or BM 2)

Detects 2

stage releasing (power)

• Remote control

Atmospheric solenoid valve (releasing by min. pressure) for

max. releasing pressure of 30 bar. Safety manometric box

(BMS) activated with a pneumatic or electro-pneumatic impulse.

• Manual control on BM 2 with 1 BMS 1 only

Push button (connected at the same place as a BMS 2).

Versions

NF --> BK(A)/BU(B)

NO --> BK(A)/BN(C)

WIRING

123456

NF --> BK(3)/BU(4)

NO --> BK(3)/BN(5)

WIRING

NF --> BK/BU

NO --> BK/BN

WIRING

3 m

NF : Normally closed

NO : Normally opened

N13

Version C1 connection

Explosion proof connection with cable

and tight-shut packing gland

Version C2 connection

Explosion proof connection

with explosion proof

connector box

Version C3 connection

Explosion proof connection

with sealed connector

for intrinsic safe

N14

N15

8b - Differents versions of BM OS2 connections

AC DC

Max. intensity 7.0 A 0.8 A

Max. tension 400 V 250 V

Protection EEx-d IIC T6

Tightness IP 66

Temperature - 29°C + 71°C

Fastening 2 M3 screws

Cable

3 wires (black, brown, blue) H05VVF

(3 x 0.75 mm²) D 6.5 mm

Contact

Europe, Middle East, and Africa Document Only

1 2 3 4 5 6 7 8 9 10 11 12

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Emerson EZH and EZHSO Series Pressure Reducing Regulators Manual de instrucciones Pagina 6

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