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MKS 641A Manuals
Manuals and User Guides for MKS 641A. We have
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MKS 641A manual available for free PDF download: Manual
MKS 641A Manual (78 pages)
Pressure Controller
Brand:
MKS
| Category:
Controller
| Size: 0 MB
Table of Contents
Table of Contents
5
Pressure Transducer Safety Information
13
Symbols Used in this Instruction Manual
13
Symbols Found on the Unit
14
Table 1: Definition of Symbols Found on the Unit
14
Safety Procedures and Precautions
15
Chapter One: General Information
17
Introduction
17
How this Manual Is Organized
18
Manual Conventions
18
Customer Support
19
Chapter Two: Installation
21
How to Unpack the 640 Series Controller
21
Unpacking Checklist
21
Product Location and Requirements
22
Interface Cables
23
Table 2: Interface Cables
23
Generic Shielded Cable Description
24
Dimensions
25
Front and Back Views
25
Figure 1: Front and Back Views of the 640 Series Controller
25
Table 3: Fitting Dimension
25
Side View
26
Figure 2: Side View of the 640 Series Controller
26
Setup
27
Fittings
27
Mounting Hardware
27
Gas Pressure
27
Figure 3: Bottom View of the 640 Series Controller
27
Installing the Unit
28
Figure 4: Downstream Pressure Control
28
Figure 5: Upstream Pressure Control
29
The I/O Connector
30
Table 4: I/O Connector Pinout
30
Initial Configuration
32
Table 5: Initial Configuration
32
Chapter Three: Overview
33
General Information
33
Pressure Control Range
33
Figure 6: Top View of the 640 Series Controller
33
A Typical Control System
34
How the 640 Series Pressure Controller Works
35
Figure 7: Sample Pressure Control System
35
Tuning the 640 Series Pressure Controller
36
Proportional Term
36
Figure 8: Effects of the Proportional Control
36
Integral Term
37
Figure 9: Effects of the Integral Control
37
Tuning the 640 Controller
39
Figure 10: Controller Response with Initial P Term and I Term Values
39
Figure 11: Controller Response with Increased P Term
40
Figure 12: Controller Response with Increased I Term
40
Priority of Commands
41
Trip Points
42
Action of the Trip Points
42
Applications with a Large Differential Pressure
43
Labels
43
Figure 13: Serial Number Label
43
Chapter Four: Operation
45
How to Check the Zero
45
How to Zero a Type 640 (Absolute) Unit
45
How to Zero a Type 641 (Gage) Unit
46
Table 6: Highest Pressure Suggested for Zero Adjustment of an Absolute Transducer
46
How to Adjust the Span
47
How to Tune the 640 Series Controller
47
How to Adjust the Trip Point Values
48
How to Select the Trip Point Action
49
Figure 14: Jumper Positions on the Transducer Board
49
How to Use Trip Points as Error Indicators
51
How to Change the Pressure Output Signal Range
52
How to Select Upstream Control
54
Figure 15: Jumper Positions on the Control Board
54
Appendix A: Product Specifications
57
Performance Specifications
57
Environmental Specifications
58
Trip Point Specifications
58
Physical Specifications
59
Appendix B: Valve Orifice Selection
61
General Information
61
Checking the Orifice Size
61
Figure 16: Model Code Explanation
61
Table 7: Orifice Size
62
How to Verify the Orifice Selection
63
Table 8: Valve Orifice Index Number
64
Figure 17: Flow Range Selection
65
Using Different Gases
66
Appendix C: Gas Density Table
69
Appendix D: Model Code Explanation
73
Model Code Description
73
Table 9: Pressure Range Selection
74
Table 10: Fitting Type Selection
74
Table 11: Valve Type
74
Table 12: Seal Material Selection
75
Table 13: Valve Orifice Size Selection
75
Table 14: Trip Point Model Code Entry
76
Table 15: Valve Plug Material
76
Index
77
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