ABB AV3 Instruction Manual page 101

Index
(continued)
Type AV4...............................................................4-5
Mounting
Bailey...................................................................1-10
Considerations ......................................................3-2
Dimensions............................................................3-2
Direct coupling.......................................................3-4
Kits ......................................................................1-10
Retro-fit kits .........................................................1-10
Type AV3 and AV4 positioners .............................3-2
NEMA 250...................................................................1-7
NEMA 4X ....................................................................1-7
Nomenclature..............................................................1-5
Operating procedures .................................................5-1
Orifice speed control ...................................................4-9
Overview .....................................................................1-1
Pilot valve
Adjustment ............................................................8-9
Stroke adjustment .................................................8-9
Position transmitters
4 to 20 mA ............................................................ A-1
Calibration
4 to 20 mA ...................................................... A-6
Potentiometric................................................. A-4
Potentiometric ...................................................... A-1
Positioner accessories ..............................................1-10
Positioner features ......................................................1-2
Pressure gages .........................................................1-11
Quick start .................................................................. B-1
Calibration ............................................................ B-5
Mounting............................................................... B-2
Tubing .................................................................. B-4
Wiring ................................................................... B-4
Radial line alignment...................................................4-3
Recommended spare parts.........................................9-1
Cam.......................................................................9-2
Diaphragm assembly.............................................9-1
Filter replacements................................................9-2
Pilot valve assembly..............................................9-1
Index - 2
N
O
P
Q
R
Shutoff valve ......................................................... 9-2
Reference documents ................................................ 1-5
Removing and replacing cam ..................................... 8-7
Repeatability............................................................... 1-6
Replacement of positioner components ..................... 8-1
Replacement procedures
Servo assembly and electronics circuit board ...... 8-5
Replacing
Diaphragm assembly ............................................ 8-8
Gain hinge spring.................................................. 8-3
Motor control circuit board .................................... 8-5
Pilot valve body..................................................... 8-4
Servo assembly .................................................... 8-5
Resolution................................................................... 1-6
Retro-fit mounting kits............................................... 1-10
Reverse-acting operation ........................................... 3-5
Routine service items ................................................. 7-1
Servo adjustments
Type AV4 ............................................................ 4-14
Servo assembly adjustments
Type AV3 ............................................................ 4-11
Type AV4 ............................................................ 4-14
Servo motor speed adjustment
Type AV3 .............................................................. 4-4
Type AV4 .............................................................. 4-5
Servo speed adjustments
Type AV4 ............................................................B-10
Span adjustment
Type AV3 .............................................................. 4-3
Type AV4 .............................................................. 4-4
Specifications ............................................................. 1-6
4 to 20 mA position transmitter ............................. 1-9
Speed adjustment....................................................... 4-9
Speed adjustment, positioner ..................................... 4-8
Speed control adjustment, signal diaphragm ............. 4-9
Speed control orifices ............................................... 1-10
Stroke
Adjustment
Pilot valve........................................................ 8-9
Range ................................................................... 1-6
Supply pressure................................................... 1-7, 3-7
Temperature
Effect..................................................................... 1-7
Limits .................................................................... 1-7
Troubleshooting.......................................................... 6-1
Troubleshooting calibration ...................................... 4-11
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T