Powers 593 Series Flowrite II Heavy Duty Bronze Globe Con Manuel d'utilisateur télécharger pdf

FEATURES

• Compact design can be installed in any position

• Low maintenance epoxy coated aluminum manifold hous-

ing and stainless steel external parts resist corrosion

• Good dynamic response, adjustable combination of pro-

portional band and air exhaust capacity

• Not sensitive to mechanical vibrations

• Rugged design, very easy to repair

• Only one moving valve part, therefore, less sensitive to

clogging

• Usable as positioner or as motion transmitter

• Standard yoke mounting per IEC 534-6

APPLICATIONS

The 147-3000 Pneumatic Positioner Relay improves control

system performance by providing the following functions:

• .....Elimination of valve movement caused by line pressure

variations

• ...............................Minimize effects of stick-slip (hysteresis)

•...........................................................Faster valve movement

• ......................Increased close-off rating when I/P’s are used

• ............................................................................Split ranging

OPERATION

The 147-3000 single acting positioner assures an exact rela-

tionship between actuator valve stem position and controller

input signal. Operating on the time-proven force balance

principle, valve stem motion is transferred through a feed-

back spring which opposes the force produced by the input

signal diaphragm. Supply air is fed through a pneumatic

three-way valve which has output pressure to the diaphragm

actuator that is varied as a result of movement of the feed-

back arm. Any change in instrument signal pressure or exter-

nal actuator force will either increase or exhaust positioner

output pressure causing movement of the actuator stem until

an equilibrium is reached. Stepless combination of gain

adjustment and stroking speed control provides unusual

capability of matching valve performance with process loop

system dynamics..

TECHNICAL INSTRUCTIONS

SINGLE ACTING POSITIONING RELAY

147-3000

OPERATING

Ambient Temperature Range -10°F to 150°F (-23°C to 65°C)

Travel See Back Page

Signal Input 3–15, 3–9, 9–15 psi

Maximum Open Loop Gain 150:1

Minimum Open Loop Gain* 50:1

Steady State Air Consumption 9 psi signal / 20 psi supply 0.10 SCFM

Linearity <±1.3% of span

Hysteresis <0.4% of span

Dead Band <0.2% of span

Threshold Sensitivity <0.07% of span

Supply Pressure Effect 0.12% of span per psi

Ambient Temperature Effect 0.1% per 2°F

Travel Time 46 in2 Actuator @ 20 psi Supply Air In* 1.8 sec. for 1/2"

Air Out* 2.1 sec. for 1/2"

75 in2 Actuator @ 20 psi Supply Air In* 3.8 sec. for 3/4"

Air Out* 2.3 sec. for 3/4"

PHYSICAL

Air Connections 1/4" NPT Instrument and Supply

1/8" NPT Output and Gauge

Body Materials Manifold Housing Material Anodized Epoxy Coated Aluminum

Upper Housing Material High Strength Polyamide

External Feedback Parts Stainless Steel

Shipping Weight 1.2 lbs. (.544kg)

Dimensions 2-1/4" x 3-1/16" x 4-1/4"

(5.7 cm x 7.8 cm x 10.8 cm)

Supply Air Maximum of 50 PSI Maximum of 30 PSI

Pressure PSI with 46 Actuator With 75 Actuator

*@ Maximum speed setting (gain screw flush).

SPECIFICATIONS

Form TI147-POS

1 2 3 4 5 6 7 8

Résumé du contenu

Page 1 - TECHNICAL INSTRUCTIONS

FEATURES• Compact design can be installed in any position• Low maintenance epoxy coated aluminum manifold hous-ing and stainless steel external parts

Page 2

TI147-POS Page 2INSTALLATIONBefore starting, make sure the positioner stroke range isappropriate for your valve. See Table 3 on back page. Mounting1.

Page 3 - 46 sq.in

TI147-POS Page 3PARTS AND ACCESSORIES LISTCLOSEDOPENN.C.46 sq.in.OPENCLOSEDN.O.46 sq.in.Air Connectionson topNote: Install take-offplate with flange u

Page 4 - Reverse Acting (NC and NO)

TI147-POS Page 4milled outwhen factory ordered75 sq. in.N.O. & N.C.Figure 3 - 75 sq. in. Valve withPositioner both Direct andReverse Acting (NC an

Page 5 - TI147-POS Page 5

TI147-POS Page 57SUPPLYSIGNAL2627 5 4 3 2 8OUTPUT1612131469101115117Table 1. Positioner Repair PartsItem # Description Part #1 Arm -2-4 Take-off P

Page 6

TI147-POS Page 6TABLE 3TABLE 4Stroke Actual Take Off Complete Sprin Kit ColorOperation Range Stroke (in) Pin Setting (in) Positioner Only Wire (Dim in

Page 7 - TI147-POS Page 7

TI147-POS Page 7

Page 8 - WARRANTY INFORMATION

TI147-POS Page 8WARRANTY INFORMATIONPowers Process Controls warrants that the equipment manufactured by it is free from defects in material and workma

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