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Fisher 4194HB
Emerson Fisher 4194HB Manuals
Manuals and User Guides for Emerson Fisher 4194HB. We have
1
Emerson Fisher 4194HB manual available for free PDF download: Instruction Manual
Emerson Fisher 4194HB Instruction Manual (92 pages)
Differential Pressure Indicating Controllers
Brand:
Emerson
| Category:
Controller
| Size: 1.38 MB
Table of Contents
Table of Contents
1
1 Introduction
3
Description
4
Specifications
4
Educational Services
4
2 Installation, Mounting, and Connections
8
Controller Mounting Orientation
8
Pipestand Mounting
8
Pressure Connections
8
Process Pressure Connections
10
Supply Pressure
10
Vent Connection
11
Remote Set Point (Suffix Letter M) Connection
11
External Feedback Connection (4194HB Controllers Only)
11
4 HA Proportional-Only Controllers
12
Adjustments for 4194HA Controllers
12
Manual Set Point Adjustment
13
Remote Set Point (Suffix Letter M) Adjustment
14
Proportional Band Adjustment (PB ADJ)
14
Changing Controller Action
15
Switching the Auto/Manual Station
15
Prestartup Checks for 4194HA Controllers
15
Startup for 4194HA Controllers
16
Calibration for 4194HA Controllers
17
General Calibration Instructions
17
Process Indicator Zero-And-Span Calibration
17
Remote Set Point (Suffix Letter M) Zero-And-Span Adjustment
18
Flapper Alignment
19
Principle of Operation for 4194HA Controllers
20
Overall Operation
20
Remote Set Point Option
21
Auto/Manual Station Option
21
4 HB Proportional-Plus-Reset Controllers and 4194HC Proportional-Plus-Reset-Plus-Rate Controllers
22
Adjustments for 4194HB and HC Controllers
22
Manual Set Point Adjustment
22
Remote Set Point (Suffix Letter M) Adjustment
22
Proportional Band Adjustment (PB ADJ)
22
Changing Controller Action
22
July
22
Reset (Suffix Letter B) Adjustment
23
Rate (Suffix Letter C) Adjustment
23
Anti-Reset Windup (Suffix Letter F) Adjustment
23
Switching the Auto/Manual Station
23
Prestartup Checks for 4194HB and HC Controllers
23
Startup for 4194HB and HC Controllers
24
Calibration for 4194HB and HC Controllers
25
General Calibration Instructions
25
Process Indicator Zero-And-Span Calibration
26
Remote Set Point (Suffix Letter M) Zero-And-Span Calibration
27
Flapper Alignment
27
Anti-Reset Windup Valve (Suffix Letter F) Calibration
30
Principle of Operation for 4194HB and HC Controllers
31
Overall Operation
31
Anti-Reset Windup Option (Suffix Letter F)
34
Remote Set Point Option (Suffix Letter M)
34
Auto/Manual Station Option (Suffix Letter E)
34
External Feedback Option
35
5 Maintenance
37
Troubleshooting
37
Changing Controller Action
41
Replacing the Differential Pressure Unit
42
Replacing Controller Parts
43
July
43
Replacing the Process Differential Pressure Scale
44
Replacing the Relay
44
Replacing the Case and Cover
45
Replacing the Gauges
46
Replacing the Links
46
Link 1
47
Link 2
48
Link 3
49
Link 4
50
Replacing the Supply, Proportional, Reset, Reset Valve, and Relief Tubing Assemblies
51
Replacing the Proportional Band Adjustment Knob, Nozzle Assembly, and Set Point Beam Assembly
52
Replacing the Flapper Assembly and Flexure Pivot Assembly
56
Replacing the Proportional or Reset Bellows
59
Replacing the Rate/Reset Valve Assembly (4194HC Controllers)
61
Replacing the Reset Restriction Valve (4194HB Controllers)
61
Replacing the Differential Relief Valve Assembly (Suffix Letter F)
62
Replacing the Relief Valve Tubing Assembly (Suffix Letter F)
62
Calibration after Controller Maintenance
63
Process Indicator Zero-And-Span Calibration
63
Flapper Alignment
64
4194HA Proportional-Only Controllers
65
4194HB Proportional-Plus-Reset and 4194HC Proportional-Plus-Reset-Plus-Rate Controllers
65
Anti-Reset Windup Valve (Suffix Letter F) Calibration
67
Remote Set Point (Suffix Letter M) Maintenance
68
Remote Set Point Assembly Replacement
69
Replacing Remote Set Point Parts
69
Pivot Assembly a (Key 114)
69
Pivot Assembly B (Key 115)
70
Drive Flexure
71
Remote Set Point Tubing
71
Link a
71
Link B
72
Pressure Control Block for Remote Set Point
72
Remote Set Point Maintenance Calibration
72
Remote Set Point Precalibration Procedures
72
Aligning Remote Set Point Linkage
73
Remote Set Point Zero-And-Span Adjustment
73
Setting Remote Set Point Travel Stops
73
Remote Set Point Linearity Adjustment
74
Replacing Auto/Manual Station (Suffix Letter E) Parts
75
Assembly of the Auto/Manual Station
75
Disassembly of the Auto/Manual Station
75
Body Assembly, Lever O‐Ring, Switch Body O‐Ring, and the Tubing Assembly
76
Replacing the Auto/Manual Station Loader
76
Replacing the Auto/Manual Station Switch
76
Range Spring, Diaphragm Assembly Ball Seat, Tubing, and Ball
77
Replacing the Auto/Manual Station Loader Valve Plug and Valve Plug Spring
78
6 Parts
79
Parts Ordering
79
Abbreviations Used in Parts List
79
Parts Kits
79
Controller Parts
80
Process and Set Point Indicator Assembly
87
Remote Set Point Assembly
88
Indicator Assembly
89
Auto/Manual Station (Suffix Letter E)
89
Controller Mounting Parts
92
Fittings
92
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