ABB AV1 User manual

AV1 and AV2
Characterizable pneumatic and
electro-pneumatic positioners
Pneumatic and electro-pneumatic
positioners built on proven
performance for demanding process
conditions
Measurement made easy
Introduction
AV characterizable pneumatic positioners are control
devices that satisfy a wide range of applications. They
provide fast, sensitive and accurate positioning of
pneumatic single- or double-acting, linear or rotary
motion actuators. A mechanical connection from the
actuator to a position feedback cam in the positioner
establishes actual position. Three characterized
segments on one cam provide application flexibility
by establishing various relationships between input
signal and actuator position. The relationships
provided by the segments are square root, linear and
square.
For more information
The Operating Instruction and Data Sheet for the AV1
and AV2 characterizable pneumatic positioners are
available for free download from:
www.abb.com/measurement
or by scanning this code:
DS/AV12-EN
OI/AV12
—
Characterizable
analog positioners
Data Sheet
Operating Instruction
—
A B B M E A S U R E M ENT & A N A LY T I C S | SHORT FORM OPERATING INSTRUCTION | SOI/AV 1 2 R E V. A

Contents
General information and instructions . . . . . . . . . . . . . . . .2
Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Agency Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Component Material List . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mounting the Positioner. . . . . . . . . . . . . . . . . . . . . . . . . . .7
Tubing Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
General information and instructions
These instructions are an important part of the product and
must be retained for future reference. Installation, commission-
ing, and maintenance of the product may only be performed by
trained specialist personnel who have been authorized by the
plant operator accordingly. The specialist personnel must have
read and understood the manual and must comply with its in-
structions.
For additional information or if specific problems occur that
are not discussed in these instructions, contact the
manufacturer. The content of these instructions is neither part
of nor an amendment to any previous or existing agreement,
promise or legal relationship.
Introduction
This document is intended for control engineers with in-depth
knowledge of positioners and positioner applications. The quick
start guide highlights the major points of installation and
calibration. Detailed installation and calibration information is
contained in the Operating Instruction (OI/AV12). It is strongly
recommend to download and use the Operating Instruction
manual for initial setup and operation.
Return of Equipment
All equipment being returned to the factory for repair must be
free of any hazardous materials (acids, alkalis, solvents, etc.). A
Material Safety Data Sheet (MSDS) for all process liquids must
accompany returned equipment. Contact the factory for
authorization prior to returning equipment.
Contacting the Factory
Should assistance be required with any of the company’s
products, contact the following:
Telephone: 1-800-HELP-365
E-Mail: [e-mail]
Trademarks and Registrations
Registrations and trademarks used in this document include:
Registered trademark of
® Delrin E.I. DuPont de Nemours Company, Incorporated
® Dow Corning Dow Corning Corporation
® Lexan General Electric Company, GE Plastics Division
® Monel International Nickel Company
® Noryl General Electric Company, GE Plastics Division
® PowerRac DeZurik, a Unit of General Signal
® Rynite E.I. DuPont de Nemours Company, Incorporated
® Teflon E.I. DuPont de Nemours Company, Incorporated
® Valox General Electric Company, GE Plastics Division
® Viton E.I. DuPont de Nemours Company, Incorporated
POSSIBLE PROCESS UPSETS.
Maintenance must be performed only by qualified personnel
and only after securing equipment controlled by this product.
Adjusting or removing this product while it is in the system
may upset the process being controlled. Some process up-
sets may cause injury or damage.
and is issued in strict confidence. Its use, or reproduction for
use, for the reverse engineering, development or manufacture
of hardware or software described herein is prohibited. No part
of this document may be photocopied or reproduced without
the prior written consent of ABB Inc..
2 AVI and AV2 POSITIONERS | SOI/AV12 R E V. A
Warnings
The warnings in these instructions are structured as follows:
DANGER
The signal word ‘DANGER’ indicates an imminent danger.
Failure to observe this information will result in death or
severe injury.
WARNING
The signal word ‘WARNING’ indicates an imminent danger.
Failure to observe this information may result in death or
severe injury.
CAUTION
The signal word ‘CAUTION’ indicates an imminent danger.
Failure to observe this information may result in minor or
moderate injury.
NOTICE
The signal word ‘NOTICE’ indicates potential material
damage.
Note - ‘Note’ indicates useful or important information
about the product.
WARNING
Do not install, maintain or operate this equipment without
reading, understanding and following the proper factory-sup-
plied instructions and manuals, otherwise injury or damage
may result.
WARNING

Specification
Table 1-1 provides performance specifications of the Type AV1
and Type AV2 positioners. Tables 1-2 and 1-3 provide perfor-
mance specifications for the position transmitters.
Property Characteristic/Value
Input range
AV11 and AV15
AV12 and AV16
AV23 and AV27
20.7 to 103.4 kPa (3.0 to 15.0 psig)
20.7 to 186.2 kPa (3.0 to 27.0 psig)
4 to 20 mA
Input impedance
(Type AV2 only)
Nominal
Maximum
215 at 22°C (72°F)
245 at 60°C (140°F)
Standard stroke range
(cam selection)
AV_ _1_ _ _ _
AV_ _2_ _ _ _
12.7 to 50.8 mm (0.5 to 2.0 in.) linear,
rotary input 45°
25.4 to 101.6 mm (1.0 to 4.0 in.) linear,
rotary input 90°
Gain
2 adjustment levels by changing gain
hinge spring. Refer to the flow gain
curves as shown in Figures 1-3 and 1-4
for standard and high gain units.
Accuracy2
AV1
AV2
0.80% of span maximum
0.90% of span maximum
Resolution
AV1
AV2
0.09% of span maximum
0.30% of span maximum
Hysteresis2
AV1
AV2
0.45% of span maximum
0.70% of span maximum
Repeatability2
AV1
AV2
0.12% of span maximum
0.50% of span maximum
Deadband2
AV1
AV2
0.12% of span maximum
0.30% of span maximum
Linearity20.70% of span maximum
Supply pressure
172 to 1034 kPa (25 to 150 psig)
NOTE: Minimum supply pressure
should be 34.4 kPa (5.0 psig) above
operating pressure required by
actuator.
Supply pressure effect
0.05% per 6.9 kPa for ±69 kPa change
(0.05% per 1.0 psi for ±10 psig change)
Capacity
(maximum capacity exhausting to
atmosphere) Refer to Figure 1-1.
Air consumption Refer to Figure 1-2.
NOTES:
1. Performance testing performed on a ABB Type UP10 actuator.
2. Tested according to ISA-S75.13-1989
3. For operation below 4.4°C (40°F), dew point of the supply air
must be 10°C (18°F) lower than the lowest expected operating
temperature.
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.
4. Lock all linkage components in place.
AVI and AV2 POSITIONERS | SOI/AV12 RE V. A3
Table 1-1. Type AV1/2 Positioner Specifications1 Table 1-1. Type AV1/2 Positioner Specifications1 (continued)
Property Characteristic/Value
Vibration effect2 <2.0% error for:
5 to 15 Hz at peak-to-peak constant
displacement of 4 mm (0.16 in.)
15 to 120 Hz at accelerations to 2 Gs
Pneumatic connections 1/4 -NPT on supply, signal and output
connections
Materials of construction
Enclosure
Pilot valve
Aluminum and <0.5% magnesium
303 stainless steel
Enclosure classification
Standard
AV_ _ _ _ _ _N
NEMA 3R classification when vent
hole is protected from rain using rain
elbow (½-NPT street elbow, refer to
Figure 3-1).
NEMA 4X when installed per drawing
C258567. Also see Figure B-11B
Weight
AV1
AV2 (standard)
AV2 (explosionproof)
1.84 kg (4.06 lbs)
2.32 kg (5.11 lbs)
2.95 kg (6.51 lbs)
Temperature limits
Operating
AV11/2
AV15/6
AV2
Storage
AV11/2
AV15/6
AV2
-40°C to 82°C (-40°F to 180°F)3
-20°C to 127°C (-4°F to 250°F)3
-20°C to 82°C (-4°F to 180°F)3
-40°C to 93°C (-40°F to 200°F)
-20°C to 127°C (-4°F to 250°F)
-20°C to 82°C (-4°F to 180°F)
Humidity limits
Operating
Storage
0% to 95% noncondensing
0% to 95% noncondensing
1/8 -NPT on pressure gauges

...Specification
Figure 1-2. Air Consumption
Figure 1-4. Expanded First Quadrant View of Figure 1-3
Figure 1-3. Output Air Flow vs. Error Signal
— Standard and Performance Series
Figure 1-1. Capacity (Exhaust to Atmosphere)
Table 1-2. Type AV _ _ _ _ 1 _ _
Potentiometric Position Transmitter Specifications
Table 1-3. Type AV _ _ _ _ 2 _ _
4 to 20-mA Position Transmitter Specifications
Property Characteristic/Value
Supply voltage 16 to 34 VDC
Output signal 4 to 20 mA
Output loading 500 at 24 VDC, 1000 at 34 VDC
Accuracy <0.6% of span (maximum)
Hysteresis <0.5% of span (maximum)
Ambient temp effect <0.063% per °C (<0.035% per °F)
EMI/RFIeffect <1.5% maximum at 10 V/m
field strength, 20 to 450 MHz
Temperature limits
Operating
Storage
-40°C to 82°C (-40F° to 180°F)
-40°C to 93°C (-40F° to 200°F)
4 AVI and AV2 POSITIONERS | SOI/AV12 R E V. A
Property Characteristic/Value
Total resistance 2000
Power rating 1 W up to 70°C (158°F),
0 W at or above 125°C (257°F)
Wiper rate of change 9.9 nominal per degree of
cam rotation
Temperature effect 0.05% (500 ppm) per °C
(0.03% (278 ppm) per °F) maximum
Maximum voltage 35 VDC or 30 VAC across the
potentiometer ends
Temperature limits
Operating
Storage
-40°C to 82°C (-40°F to 180°F)
-40°C to 93°C (-40°F to 200°F)

Agency Approval
Table 1-4. Agency Approvals1
NOTES:
1. Hazardous locations approvals for use in flammable atmos-
pheres are for ambient conditions of -25°C to 40°C (-13°F to
104°F), 86 to 106 kPa (12.5 to 15.7 psig) with a maximum oxygen
concentration of 21%.
4. Lock all linkage components in place.
Component Material List
Table 1-5. Component Material List
Component Material
Housing Aluminum
Cover
Inserts
Window
Screws
Aluminum
Lamond (thermoplastic elstomer)
Lexan® (polycarbonate)
Stainless steel
Range spring 302 stainless steel
Pilot valve (stem & body) 303 stainless steel
Gain hinge spring 302 stainless steel
Cam 302 stainless steel
Cam shaft
Bearings 303 stainless steel Bronze
Cam follower arm
Bearing
Shaft
Aluminum
Stainless steel
303 stainless steel
Spring arm Aluminum
Zero adjustment nut Aluminum
Indicator
Valox® — unreinforced
(polybutylene terphthalate)
Tubing Silicone
Drive arm Aluminum
Teflon® washers Teflon
Fasteners Steel/stainless steel
Signal connector Nylon
Diaphragms
All except Types AV15 & AV16
Types AV15 and AV16
Buna-N with Dacron fabric
Fluorosilicone with Dacron fabric
Diaphragm plastic parts
Rynite® (FR-530) polyethylene
terphthalate
Gauge block (optional) Aluminum
O-rings
All except Types AV15 & AV16
Types AV15 and AV16
Buna-N
Viton®
Manifold (optional)
Adhesive
Handle
Plate
Plug
Valve
Valve handle
Aluminum
Epoxy
Rynite
Aluminum
Stainless steel
Aluminum
Rynite
Position transmitter
(AV _ _ _ _ 1/2 _ _)
Gears
Gear hub
Delrin® (coolymer acetal)
Brass
Additional Type AV2 comps
Tubing
I/P converter
Nylon
Copper
Copper clad glass laminate
Monel® 405, Nickel-iron
Noryl® , Polyethylene, Zinc
Rare earth magnet, Polyester
magnet wire
AVI and AV2 POSITIONERS | SOI/AV12 RE V. A5
Nomenclature Approval/Certification
AV1 and AV23
Factory Mutual Research (CFMUS):
FM Approvals - FM16US0321
FM Approvals Canada - FM16CA0160
Approved as nonincendive for:
Class I, Div 2, Groups A, B, C, D / T5 Ta = 40°C
Class II, Div 2, Groups E, F and G / T5 Ta = 40°C
Class III, Div 2 / T5 Ta = 40°C
AV27_ _ 0_ _
Factory Mutual Research (FM):
Approved as explosionproof for:
X.P: Class I ; Division 1, Groups B, C, D
D.I.P: Classes II, III ; Division 2, Groups E, F, G
Canadian Standards Association (CSA)
Certified as explosionproof for:
Classes I ; Division 1, Groups B, C, D
Refer: ABB - TEIP11 I/P Signal Converter
Install per : OI/TEIP11/TEIP11-PS
All
Complies with the EC directive for CE conformity.
2014/30/EU - Electromagnetic Compatibility EMC
2011/65/EU & 2015/863/EU - RoHS Directive

Product identification (Nomenclature)
Table 1-6. Nomenclature
NOTES:
1. AV1 _ _ _ _ _ _is cFMus approved only for general purpose and non-incendive installations.
2. AV23 _ _ _ _ _ is cFMus approved only for general purpose and non-incendive applications.
AV27 _ _ _ _ _ is FM/CSA approved for use in explosion-proof or intrinsically safe applications.
3. High temperature Type AV1 positioners are only available without manifolds or position transmitters; however, gauge
blocks are permitted.
4. Explosionproof Type AV27 positioners are not available with position transmitters or manifolds.
5. The Type AV_ _ _ _ _ _N positioner comes with a NEMA 4X housing. To maintain the NEMA 4X classification, the
positioner shall be installed per drawing C258567 and suitable piping shall be attached to the vent opening and vented
in a manner to preclude the entrance of water under pressure, as from a hose. Additionally, the conduit connections shall
be suitable for a NEMA 4X rating.
6 AVI and AV2 POSITIONERS | SOI/AV12 R E V. A
Position 1 2 3 4 5 6 7 8 9 Characterizable Positioners
Type A V _ _ _ _ _ _ _
1 Characterizable Pneumatic Positioner 1
2 Characterizable 4 to 20-mA Input Positioner 2
(actuator moves to 0% or 100% upon loss of signal)
Input Signal
1 20.7 to 103.4 kPa (3.0 to 15.0 psig) (Type AV1)
2 20.7 to 186.2 kPa (3.0 to 27.0 psig) (Type AV1)
3 4 to 20 mA (Type AV2)
5 20.7 to 103.4 kPa (3.0 to 15.0 psig), high temperature applications (Type AV1) 3
6 20.7 to 186.2 kPa (3.0 to 27.0 psig), high temperature applications (Type AV1) 3
7 4 to 20 mA with explosionproof I/P converter (NEMA 7) (Type AV2)4
Stroke/Rotary Motion (cam selection)
1 12.7 to 50.8 mm (0.5 to 20.0 in.) or 45° rotary motion
2 25.4 to 101.6 mm (1.0 to 4.0 in.) or 90° rotary motion
Manifold (includes filters)/Gauge Block
0 No manifold
1
Manifold with equalizing valve, filters and gauge ports (required for double
acting actuators with manual override)
3 Gauge block (gauge port only)3
Position Transmitter
0 None (must be 0 for Types AV15, AV16 and AV27)
1 Potentiometric resistive output
2 4 to 20-mA output
Drive Shaft
0 Standard with feedback arm for linear motion
1 0.500-in. square end
2 0.342-in. square end for older DeZurik actuators
3 0.250 in. across flats (UP1 and UP2 after August, 1995)
4 0.375 in. square for DeZurik PowerRac® actuators
5 0.156 in. across flats for NAMUR rotary actuators
Other Options
0 Standard (no other options)
N NEMA 4X enclosure rating (when installed per drawing C258567)5
P Performance Series — high pneumatic gain for large actuators

Mounting the Positioner
Due to the wide range of applications that the Type AV
positioner is suited for, only general information about
mounting is provided. Use the following procedure to
mount the positioner.
Install the positioner as required on the actuator. Figures B-
1 and B-2 show typical mounting arrangements. Use the fol-
lowing procedure for mounting guidelines.
NOTE: If the actuator is equipped with a Type AV
positioner as ordered, verify that all the connec-
tions are secure and make any adjustments as re-
quired.
1. Set the actuator at the zero position. Connect the ad-
justable linkage to the drive arm. The drive arm holes corre-
spond to stroke length of the actuator. Refer to Figure B-3 for
the stroke length for each drive arm hole.
2. Install the cam (black, direct acting; or red, reverse acting)
that will provide the required direction of rotation.
NOTE: Cams have three mounting holes:
A - square root; B - linear; C - square.
Each mounting hole is star shaped so the cam can be
rotated in 45° increments to suit the application.
3. With the actuator in the closed position, adjust the con-
necting linkage so that the zero radial line on the cam inter-
sects the center of the cam roller (Fig. B-4).
4. Lock all linkage components in place.
Figure B-1. Mounting Using Linkage (Typical)
Figure B-3. Drive Arm Connections
Figure B-2. Mounting Using Direct Coupling (Typical)
Figure B-4. Cam Roller Alignment
AVI and AV2 POSITIONERS | SOI/ AV12 RE V. A7
Installation
The Type AV positioner can be used with double acting or
single acting actuators.

Tubing Connections
Type AV positioners are available with (Type AV_ _ _1_ _ _ and
AV_ _ _2_ _ _) or without (AV_ _ _ 0_ _ _) manifolds (see Fig. B-5).
The following outlines supply air information and describes the
piping connections.
1. Connect the required supply air to connection S (Fig. B-5).
NOTE: Maximum torque for ¼-NPT fittings is 13.6 Nm (10.0 ft-
lbs).
2. Based on the positioner type, perform one of the following
steps (Fig. B-5):
Figure B-5. Port Locations
Figure B-6. Direct Acting, Top Loaded,
Single Acting Tubing Example
Figure B-7. Reverse Acting, Top Loaded,
Single Acting Tubing Example
8 AVI and AV2 POSITIONERS | SOI/AV12 RE V. A
NOTE: The minimum supply pressure should be 34.4
kilopascals (5 pounds per square inch gauge) above the oper-
ating pressure required by the actuator.
• AV11 and AV15: Connect 20.7 to 103.4-kPa (3.0 to 15.0-psig)
instrument signal to connection I.
• AV12 and AV16: Connect 20.7 to 186.2-kPa (3.0 to 27.0-psig)
instrument signal to connection I.
• AV2: Connection I is not used and should be plugged. If it is
not plugged, do so at this time.
NOTE: Use liquid or paste pipe sealant to seal the connec-
tion. Maximum torque for ¼-NPT fittings is 13.6 Nm (10.0 ft-
lbs).
3. Connect the output ports 01 and 02 as required to pro-
vide the desired direction of rotation. Figures B-6, B-7, B-8
and B-9 show
a single acting tubing example, and Figure B-10 shows a
double acting tubing example.
NOTE: The piping arrangements shown in Figures B-6, B-7,
B-8, B-9 and B-10 are general examples and may not
reflect the arrangement required for the application.
4. Install -NPT permanent instrument gauges to the gauge
ports if desired or for calibration requirements.
For long-term, trouble free operation, it is recommended that
the supply air be of instrument quality and conform to the
ANSI/ISA-7.0.01-1996 standard, the particle size in the supply
line should not be greater that 3.0 microns.
CAUTION
Do not exceed the maximum supply pressure of 1034 kilo-
pas-cals (150 pounds per square inch gauge). Exceeding
this pressure could cause equipment damage.

...Tubing Connections
Figure B-8. Direct Acting, Bottom Loaded,
Single Acting Tubing Example
Figure B-9. Reverse Acting, Bottom Loaded,
Single Acting Tubing Example
Figure B-10. Double Acting Tubing Example
AVI and AV2 POSITIONERS | SOI/ AV12 RE V. A9

Type AV2 Positioner Wiring
This section covers the wiring connections for Type AV2
positioner:
1. Connect the 4 to 20mA position demand signal wires to
terminals TB1-4 (+) and TB1-5 (-) of the terminal block (Fig. B-
11). If you have a Type AV2_ _ _ _0_ _ positioner, go to Step 4.
2. If equipped with an optional 4 to 20-mA position
transmitter (AV2_ _ _ _2_ _), connect a 24-VDC power supply in
series with the required output load (500  at 24 VDC, 1000 
at 34 VDC) to terminals TB1-1 (+) and TB1-2 (-).
3. If equipped with optional potentiometric position transmit-
ter (AV2_ _ _ _1_ _), connect a power supply (maximum 35 VDC
or 30 VAC) across TB1-1 and TB1-3. Use the signal across TB1-1
and TB1-2 or TB1-2 and TB1-3 for position transmitter feed-
back. Refer to Appendix A of Installation Manual for detailed in-
formation about position transmitters.
Figure B-11. Wiring Connections
Type AV1 Positioner Wiring
This section applies to the following positioners:
• Type AV1_ _ _ _1_ _ • Type AV1_ _ _ _2_ _
2. If equipped with optional potentiometric position transmit-
ter (Type AV1_ _ _ _2_ _), connect a power supply (maximum 35
VDC or 30 VAC) across TB1-1 and TB1-3. Use the signal across
TB1-1 and TB1-2 or TB1-2 and TB1-3 for position transmitter
feedback. Refer to Appendix A for detailed information about
position transmitters.
GROUNDING
Grounding positioners should be done in accordance with local
electrical codes (in U.S, National Electrical Code, ANSI/ NFPA
70. In Canada, Canadian Electrical Code, CSA c22.1). A ground-
ing screw is provided inside the AV enclosure for grounding.
NOTES:
1. The grounding screw located inside the AV enclosure is a
safety ground & should not be used to ground the shielded pair.
2. The positioner must be grounded to avoid ground loop con-
ditions.
10 AVI and AV2 POSITIONERS | SOI/AV12 RE V. A
NOTE: Route the wiring inside the positioner so it does
not become entangled with moving parts. A cable clamp
(Fig. B-12) is provided inside the positioner so entangle-
ment can be avoided.
1. If equipped with optional 4 to 20-mA position transmitter
(Type AV1_ _ _ _1_ _), connect a 24-VDC power supply in series
with the required output load (500  at 24 VDC, 1000  at 34
VDC) to terminals TB1-1 (+) and TB1-2 (-) (Fig. B-11). Refer to Ap-
pendix A of Installation Manual for detailed information about
position transmitters.
NOTE:
1. For Type AV1_ _ _ _0_ _ no electrical wiring is required.
2. If using a twisted shielded pair for signal wiring, ground
one end of the shielded pair at the source. Trim the other
end of the pair, located inside the enclosure, so that bare
wires are not exposed.
NOTE: Route the wiring inside the positioner so it
does not be-come entangled with moving parts. A ca-
ble clamp (Figure B-12) is provided inside the
positioner so entanglement can be avoided.
NOTE: If using a twisted shielded pair for signal wiring,
ground one end of the shielded pair at the source. Trim
the other end of the pair, located inside the enclosure,
so that bare wires are not exposed.
Electrical Connections
WIRING REQUIREMENTS
Under ideal conditions, the use of conduit and shielded wire
may not be required. However, to avoid noise problems, it is
recommended that wiring be enclosed in conduit. Just prior to
entering the housing, rigid conduit should be terminated and a
short length of flexible conduit should be installed to reduce
any stress.
RADIO FREQUENCY INTERFERENCE
Most electronic equipment is influenced by radio frequency in-
terference (RFI). Caution should be exercised with regard to
the use of portable communications equipment in the area.
ABB recommends posting appropriate signs in the plant. Refer
to the Site Planning and Preparation instruction for additional
information on RFI.
Figure B-11A. Electrical Connections
WARNING
Before mounting or installing positioner, check nameplate
data to make certain positioner is suitable for application
desired. DO NOT AT ANY TIME EXCEED THE RATINGS LISTED
ON THE NAMEPLATE.

... Electrical Connections
Explosionproof I/P Option
The Type AV27 positioner employs an explosionproof I/P con-
verter that is mounted to an adapter block manifold. The
adapter block manifold is bolted to the outside of the main
positioner housing. The unit is a Type AV12 positioner with
the electric to pneumatic (4 to 20 mA / 20.7 to 103.4-kilopas-
cal (3.0 to 15.0-pounds per square inch gauge)) conversion oc-
curring within the externally mounted I/P converter.
Figure B-11B. External and Mounting Dimensions
AVI and AV2 POSITIONERS | SOI/AV12 RE V. A11
The 4 to 20 mA input signal wires shall be connected through
an explosionproof conduit entrance on the I/P converter. If no
electrical connections are made within the main housing, the
entire positioner can be considered suitable for application in
the hazardous locations shown on the I/P label.
Refer to Figure B-11B for the external and mounting dimen-
sions of the Type AV27 positioner.

Calibration
Table B-1 presents calibration procedures for Type AV1 and
Type AV2 positioners in table format.
2. To adjust the zero, loosen the zero adjustment
setscrew (Fig. B-12) using a 3/32inch Allen wrench.
1. Turn on supply air. Apply a 4-mA input signal to
the positioner. The actuator should be in the
closed position.
3. Turn the zero adjustment nut (clockwise moves
actuator toward minimum span) until the 0 radial
line on the cam intersects with the center of the cam
roller (Fig. B-4).
3. Turn the zero adjustment nut (clockwise moves
actuator toward minimum span) until the 0 radial
line on the cam intersects with the center of the cam
roller (Fig. B-4).
4. Tighten the zero adjustment setscrew. 4. Tighten the zero adjustment setscrew.
Span 1. Apply the following input signal pressures,
depending on the nomenclature type:
Types AV11 and AV15: 103.4 kPa (15.0 psig).
Actuator should move to its full open position.
Types AV12 and AV16: 186.2 kPa (27.0 psig).
Actuator should move to its full open position.
Span
1. Apply a 20-mA signal to the positioner. The
actuator should be in its full open position.
2. To adjust the span, loosen the span adjustment
screw (Fig. B-12) using a 3/32inch Allen wrench. 2. To adjust the span, loosen the span adjustment
screw (Fig. B-12) using a 3/32inch Allen wrench.
3. Slide span adjustment assembly (Fig. B-12) until
the actuator moves to align the 100% radial line
with the center of the cam roller (toward pilot
valve increases span).
AV1 AV2 &AV27
Table B-1. Calibration Procedures
Figure B-12. Calibration Adjustments
1. Apply 20.7 kPa (3.0 psig) input signal pressure to
the positioner. The actuator should be in the
closed position.
Adj Procedure Adj Procedure
Zero
2. To adjust the zero, loosen the zero adjustment
setscrew (Fig. B-12) using a 3/32 inch Allen wrench.
Zero
4. Tighten the span adjustment screw. 4. Tighten the span adjustment screw.
3. Slide span adjustment assembly (Fig. B-12) until
the actuator moves to align the 100% radial line
with the center of the cam roller (toward pilot valve
increases span).
12 AVI and AV2 POSITIONERS | SOI/AV12 RE V. A

AVI and AV2 POSITIONERS | SOI/AV12 RE V. A13
Notes

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SOI/AV12 Rev. A05.2022
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