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SERVOTOUGH OxyExact 2200 Series
Servomex SERVOTOUGH OxyExact 2200 Series Manuals
Manuals and User Guides for Servomex SERVOTOUGH OxyExact 2200 Series. We have
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Servomex SERVOTOUGH OxyExact 2200 Series manual available for free PDF download: Service Manual
Servomex SERVOTOUGH OxyExact 2200 Series Service Manual (80 pages)
Brand:
Servomex
| Category:
Measuring Instruments
| Size: 1 MB
Table of Contents
Table of Contents
3
1 Introduction
9
Warnings, Cautions and Notes
9
Service Warnings
9
Scope of this Manual
10
Service Philosophy
11
Overview of this Manual
11
Tools Required
11
Shutdown Procedure
12
2 System Overview
13
The 2200 Analyser System
13
Figure 1 Analyser System Configurations
13
The Control Unit
14
Paramagnetic Susceptibility of O
15
The Transmitter Unit
15
Figure 2 Measuring Schematic
16
3 Factors Affecting the Measurement
17
Factors that Influence the Paramagnetic Technique
17
Temperature Effects
17
Pressure Effects
17
Pressure Compensation
18
Gas Flow Rate
18
Effect of Background Gases
18
The Use of Sample Pumps
19
Investigating Analog Output Trends
19
Noise
19
Figure 3 Analog Output Noise
19
Spikes
20
Figure 4 Analog Output Spikes
20
Ambient Effects
21
Drift
21
Figure 5 Analog Output Ambient Effects
21
Figure 6 Analog Output Drift
21
The Implications of Calibration Gas Tolerances on Performance
22
Figure 7 the Effects of Calibration Gas Tolerances
22
4 The Sample Conditioning System
23
General Guidance
23
Figure 8 Typical Sample System Components
24
Table 1 Sample System Components (See Figure 8)
24
Condensates
26
Test and Calibration Gas Requirements
26
Low Calibration Gas
26
High Calibration Gas
26
Setting Calibration and Sample Gas Flow Rates
27
5 Description of the Electronics
29
Figure 9 Control Unit Block Diagram (Previous Processor)
30
Figure 10 Transmitter Unit Block Diagram
32
Figure 11 Signal Processing Block Diagram
33
6 Initial Troubleshooting
35
Initial Power-Up
35
Failure to Calibrate
35
Calibration History
36
Internal Diagnostic Checks
36
Figure 12 Measurement Chain
36
Transmitter Unit Diagnostics
37
Output Signal Diagnostics
38
Ma Output and Status/Alarm Relay Output Checking
38
Internal Diagnostic Messages
39
Messages Associated with the Transmitter
39
Messages Associated with the Control Unit
39
7 Hardware Diagnostics
41
Transmitter Unit Hardware Diagnostics
41
Figure 13 Transmitter Diagnostics and Switches
42
Table 2 Transmitter Diagnostics and Switches (See Figure 13)
42
Low Voltage Power Supply Checking
44
Cell Electrical Continuity
45
Flow Alarm/Internal Pressure Compensation (Options)
45
Control Unit Hardware Diagnostics
46
Display Contrast Adjustment
46
Analog Output Adjustment
46
8 Transmitter Unit Servicing
47
Servicing the Transducer Assembly
47
Figure 14 2222 Transducer/Sample Compartment
49
Figure 15 2223 Transducer/Sample Compartment
50
Removal of the Oxygen Sensor (Transducer)
51
Figure 16 Cable Details
52
Replacement of the Transducer Assembly
52
Replacement of Filter
53
Replacement of Flow Sensor and Pressure Sensor
54
Replacement of the Microprocessor Board
55
Setting of 4-20Ma Output Span
56
Servicing the Power Supply Unit and Heaters
56
Fuse
56
Heater Diagnostics
56
Figure 17 Heater Continuity
57
Replacement of Heater
58
Replacement of Power Supply Assembly
58
Replacement of Barrier Board Assembly
58
Leak Test
59
9 Control Unit Servicing
61
Control Unit Layouts
61
Figure 18 Model 2210 Control Unit (Zone 2, DIV 2) Layout
61
Replacement of Electrical Assemblies
62
Figure 19 Model 2213 Control Unit (Zone 1, DIV 1) Layout
62
Signal Boards, Option Boards and Power Supply
63
Figure 20 Display Location
64
Replacement of Display Adaptor Assembly
64
Replacement of Display Module
65
Replacement of Keypad
65
Setting of 4-20Ma Output
65
10 Service Check List
67
11 Spare Parts
69
Recommended Spare Parts
69
Model 2210 Control Unit
69
Model 2213 Control Unit
70
Model 2222 Transmitter Unit
70
Model 2223 Transmitter Unit
71
Appendix A User Menu Tree
73
Appendix B Option Board Configuration
75
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