Instruction Content - ABB AV3 Instruction Manual

INSTRUCTION CONTENT

Introduction
Simplified Reverse Operation. Action can be changed in the
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field by changing cams and reversing 01 and 02 connections.
The reverse-acting cam is conveniently located on the inside
of the front cover.
Highly Visible Position Status Indicator. A fluorescent
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orange position indicator is visible through a polycarbonate
window, providing fast indication of actuator position.
Vent Design Allows Natural Gas Operation. Vent pipe
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arrangement permits operation using natural gas.
Split Range Service. Split range capability allows sequencing
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of multiple actuators using a single control signal.
Adjustable Gain. Two levels of gain are possible by simply
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changing the hinge springs supplied with the positioner.
Adaptable Usage. The positioner can control both single and
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double-acting, linear and rotary type actuators.
High Capacity. More than 0.65 cubic meters per minute (23
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standard cubic feet per minute) can be supplied or exhausted
from the positioner at 483 kilopascals (70 pounds per square
inch) supply pressure. See Figure
Continuously Adjustable Span and Zero for Each Stroke
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Level. Capable of 100 percent stroke for 50 percent signal
span or 50 percent stroke for 100 percent signal span.
Low Air Consumption. Enhanced pilot valve design and
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manufacturing technique allows the Type AV positioner maxi-
mum performance with minimum air consumption. See Figure
1-2 in the SPECIFICATIONS
Adjustable Speed Control without Additional Hardware.
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Speed of actuator can be reduced to desired speed using the
pilot valve stroke adjustment screws.
This document includes the following sections:
Provides a description of this instruction book; its sections and
uses, along with a brief description of the Type AV3 and Type AV4
positioners. This section also provides product nomenclature
(Table 1-2), specifications (Tables 1-3, 1-4, 1-5), instructions on
how to use this document, agency approvals (Table 1-6) and posi-
tioner accessories (Table 1-7). Table
Table 1-9 lists available speed control orifices, and Table
INTRODUCTION
1-1 in SPECIFICATIONS.
section.
1-8 lists retrofit mounting kits,
INSTRUCTION CONTENT
1-10 lists
1 - 3