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DCU 3
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Operators Handbook DCU3 – System
3., Function Selection and Inputs
BAEDCU3 - Rev. 4.6 - 0504
3 - 6
Switching over the main menu dis-
plays for 2…4 culture vessels via
direct functio
n key CHANGE UNI
T:
CHANGE UNIT
CHANGE UNIT
.....
17
19
Table of Contents
Main Page
Default Chapter
5
Table of Contents
5
1 Design and Function
10
2 Operating Behaviour
11
Switching „Off" and „On
11
Mains Failure
11
Shut down Function
12
Interlocking Functions
12
3 Function Selection and Inputs
13
Operating Terminal
13
Inputs
19
4 Start-Menü „Main
21
General Notes
21
Process Information Provided by the „Main" Menu
21
5 Main Function „Calibration
23
General Note
23
Ph - Calibration
24
Po 2 - Calibration
26
Redox - Calibration
27
Calibration of Turbidimetry Measurement
28
Totalizer for Pumps and Valves
30
Calibration of a Balance System
32
Flow Calibration
33
6 Main Function „Control Loops
35
Equipment and Functional Principles
35
Selection of Controller
36
Controller Operation in General
37
Parametrization of Controllers, in General
38
Temperature Controller
41
Stirrer Speed Controller
43
Airflow Controller
44
Ph - Control Function Operating as PID - Controller
45
Po 2 -Control Methods
46
Po 2 - Cascade Controller with 3 Servo Controllers
46
Po 2 - Cascade Controller with 4 Servo Controllers
50
Enrichment
52
Po 2 - Gasflow Ratio Controller
53
Oxygen (O ) - Enrichment Using 2 Massflow Controllers
56
Foam Controller
58
Dosing Pump Controller
60
Level Controller
61
Weight Controller
63
Pressure Controller
64
Gravimetric Dosing Controller
65
Setpoint Profiles
67
Timers
69
Alarm Limits of Process Values
71
Alarms of Digital Inputs
73
BAEDCU3 - Rev. 4
74
7 Main Function „Batch Control
75
General
75
Sequences
75
Process Time
79
8 Main Function „Recipes
81
Overview
81
Recipe Selection
81
Controller Parameters in Recipes
83
Setpoint Profiles
84
Timers in Recipes
85
Process Value Alarms in Recipes
86
Digital Input Alarms
87
9 Main Function „Maintenance
89
Overview
89
Manual Operation in General
90
Manual Operation for Digital Inputs
90
Manual Operation for Digital Outputs
92
Manual Operation of Analog Inputs
94
Manual Operation for Analog Outputs
96
Settings of Measurement Ranges
98
Connection of External Devices
99
Host Interface
100
Peripheral Interface
102
Balance Interface
103
System Settings
104
Service / Diagnostics
105
10 Main Function „Documentation
107
Selection Menu
107
Report Printer
107
Recorder Configuration
109
11 Main Function „Password
111
12 Main Function „INFO
113
Alarms
115
Alarm Messages
115
Alarm Menu
116
Supplement
117
Alarms, Meanings and Remedial Measures (Troubleshooting)
117
Trouble Shooting for the DCU-System
121
Interlocking Functions
121
Abbreviations
122
Fermentor - Specific Adjustments of Balance Systems
124
Arrangement and Assignment Plans
125
Declaration of Conformity with EC-Directives, Standards and Technical Specifications
125
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