Dresser Masoneilan SVI II AP Skrócona instrukcja obsługi - Strona 14

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Dresser Masoneilan SVI II AP Skrócona instrukcja obsługi

I I n n s s t t a a l l l l a a t t i i o o n n a a n n d d S S e e t t U U p p

Connecting

the Tubing

and Air

Supply

Dew Point

Dew

Point

P P ar art t ic icul ulat ate M

e Mat att t er er

O O i i l l C C o o n n t t e e n n t t

C C o o n n t t a a m m i i n n a a n n t t s s

The last step in hardware installation for the SVI II AP is to connect the

air supply to the positioner

air supply to

the positioner. . This section describes

connecting the tubing and air supply to a single and double acting

connecting the tubing and air supply to

positioner.

Isolate the valve from the process and disconnect air tubing from the

Isolate the valve from the process and

positioner

positioner. . Disconnect air fu

Disconnect air fully to avoid i

1. 1.

Install the pneumatic tubing using a regulated, clean,

instrument air supply to the air supply port (

instrument air supply to the air supply p

2. 2.

For a single acting actuator - pipe the outbound air from

For a single acting actuator -

the output pressure port (

3. 3.

For a double acting actuator -

For a double acting actuator - pipe the air going out of

each side of valve actuator

each side of valve a

←

one (

port two (

4. 4.

Connect air supply and actuator outports (1 ⁄ ⁄ 4 inch NPT)

Connect air supply and actuator outports (1



Supply pressure for single acting SVI II AP:

20 -100 psi (1.4 - 6.9 bar) (138 - 690 kPa)

20 -100 psi (1.4 - 6.9 bar)



Supply pressure for double acting SVI II AP:

20 - 150 psi (1.4 - 10.4 bar) (138 - 1035 kPa)

Minimum tubing diameter 1 ⁄ ⁄ 4 inch (6mmx4mm)



Minimum tubing diameter 1

Note: The SVI II AP Digital Positioner is designed to operate with

Note:

The SVI II AP Digital Positioner is designed to operate with

clean, dry, oil-free, instrument grade air to ANSI-ISA-57.3 1975

clean, dry, oil-free, instrument grade air to

(R1981) or ISA-S7.3-1975 (R1981) or with a sweet natural gas

supply (SVI II AP models SVI II AP-2 through SVI II

supply (SVI II AP models SVI II

Table 3

Air Supply Requirements

At At least

least 18°

18° F F (10°

(10° C)

temperature

F F il ilt t er ered

ed t t o 5 m

o 5 mi i cr cron

L L e e s s s s t t h h a a n n 1 1 p p p p m m w w / / w w

F F r r e e e e o o f f a a l l l l c c o o r r r r o o s s i i v v e e c c o o n n t t a a m m i i n n a a n n t t s s

C C o o n n n n e e c c t t i i n n g g t t h h e e T T u u b b i i n n g g a a n n d d A A i i r r S S u u p p p p l l y y

This section describes the process for

disconnect air tubing from the

lly to avoid injury or process damage.

←

ctuator. Use both output pressure

. Use both output pressure port

I I ) for one side of the actuator and output pressure

) for one side of the actuator and output pressure

←

I I I I ) for the other side of

) for the other side of the actuator

AP-2 through SVI II AP-5).

C) below

below minimum

minimum anticipate

ons s

7 7

the process for

a single and double acting

njury or process damage.

←

S S

ort (

pipe the outbound air from

) )

I I

to the valve actuator.

pipe the air going out of

the actuator. .

4 inch NPT)

(138 - 690 kPa)

4 inch (6mmx4mm)

ANSI-ISA-57.3 1975

anticipated d ambient

ambient

) )

port

AP-5).