LTH Electronics MTD75 Manuals

Manuals and User Guides for LTH Electronics MTD75. We have 1 LTH Electronics MTD75 manual available for free PDF download: Operation Manual

LTH Electronics MTD75 Operation Manual (266 pages)

Cooling Tower Controller

Brand: LTH Electronics | Category: Controller | Size: 5 MB

Preface
3
Table of Contents
7
Contents
7
Introduction
11
MTD75 Controller Specification
13
Installation - Safety & EMC
19
Noise Suppression
20
MTD75 Add-In Cards Installation
21
MTD75 Installation
27
MTD75 Connections
31
Supply Voltage Connections
32
Relay Connections
33
Current Output Connections
35
Redox Input Termination Information
38
Electrodeless Conductivity Input Termination Information
44
Ph Input Termination Information
49
Digital Inputs
54
Modbus RS485
55
SD Card Interface
56
User Interface
57
The Front Screens
57
The Menu System
58
Security Code Access
60
Access Code Management
61
Enter New Code
62
Biocide a Control Functions
63
Dosing by Volume
63
Timed Dosing
63
Dosing by Redox Level
63
Dosing from the Water Meter
63
Output Configuration
64
Bleed Inhibiting
64
Pre-Dose Bleeding
64
Dose Alarm Timer
64
Manual Dosing
64
Biocide a Menu
65
Biocide B Control Functions
73
Dosing by Ratio a : B
73
Bleed Control Functions
75
Bleed by Volume
75
Timed Bleeding
75
Bleeding by Conductivity Level
75
Bleed Alarm Timer
75
Manual Bleeding
75
Bleed Menu
76
Inhibitor Control Functions
81
Dosing by Volume
81
Timed Dosing
81
Dosing by Bleed Duration
81
Dosing from the Water Meter
81
Output Configuration
81
Bleed Inhibiting
82
Pre-Dose Bleeding
82
Manual Dosing
82
Inhibitor Menu
82
Ph Control Functions
89
Dosing by Volume
89
Timed Dosing
89
Dosing by Ph Level
89
Dosing from the Water Meter
89
Output Configuration
90
Bleed Inhibiting
90
Pre-Dose Bleeding
90
Dose Alarm Timer
90
Manual Dosing
90
Ph Control Menu
91
Alarm Relay Configuration
99
Redox Input Channel Setup
101
Electrodeless Conductivity Input Channel Setup
103
Ph Input Channel Setup
109
Redox Input Channel Calibration
113
Electrodeless Conductivity Input Channel Calibration
119
Ph Input Channel Calibration
127
Resetting the User Calibration
141
Current Outputs
143
Current Output Calibration
145
Digital Inputs
149
Configuration
153
Update Software
159
Optional Software Functions
161
Save, Restore & Reset
163
Error Messages
165
Modbus RS485
167
Data Logging
173
Live Trending
173
Setup Live Trending
173
Live Trend Screen
176
SD Card Data Logging
177
Setup SD Card Data Logging
177
SD Card Data Logging Graph
182
Viewing the SD Card Data Log on a PC
183
Appendix A - Customer Setup
185
Appendix C - Temperature Coefficient
198
Appendix D - Modbus RS485 Registers
199
Standard Value Tables
234
Appendix E - Modbus RS485 Coils
235
Appendix F - Modbus RS485 Discretes
237
Appendix G - Error Messages
247
Appendix H - Fault Finding
255
Index
262

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