Introduction
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MTD75 Operation Guide
Introduction
Bleed Output
User defined Bleed duration, triggered from one of
the user selectable sources:
Water Volume (From water Meter Input)
Timed (Per week/day/hour)
Conductivity (when > set level)
External Input (Contact Closure)
On/Off output at 250VAC* fused to 2A (accessible
on the front panel).
The Bleed output can be initiated manually
through the menu system to permit testing of the
Bleed system.
Inhibitor Output
User defined Inhibitor dose duration, triggered
from one of the user selectable sources:
Water Input (From water Meter Input)
Timed (Per week/day/hour)
Bleed (After accumulated Bleed Time)
Division of the Water Meter Input (X input pulses
give one output pulse)
Multiply by the Water Meter Input (One input
pulse gives X output pulses)
External Input (Contact Closure)
User selectable On/Off or Pulsed output.
Contact closure and 250VAC* supply terminals
provided (fused to 2A, accessible on the front
panel).
The Inhibitor output can be initiated manually
through the menu system to permit testing and
priming of the system.
pH Control
User defined pH Control dose duration, triggered
from one of the user selectable sources:
Water Volume (From Water Meter Input)
Timed (Per week/day/hour)
pH (user selectable < or > level)
Division of the Water Meter Input (X input pulses
give one output pulse)
Summary of Contents for MTD75
Page 1: ...MTD75 Cooling Tower Controller Operation Guide ...
Page 2: ......
Page 5: ...Preface MTD75 Operation Guide 3 Declaration of Conformity ...
Page 6: ...Preface 4 MTD75 Operation Guide ...
Page 12: ...Introduction 10 MTD75 Operation Guide Introduction MXD75 Termination Overview ...
Page 29: ...Installation MTD75 Operation Guide 27 Installation Horizontal Mounting Vertical Mounting ...
Page 30: ...Installation 28 MTD75 Operation Guide Installation Blank ...
Page 72: ...Biocide A 70 MTD75 Operation Guide Biocide A BLANK ...
Page 74: ...Biocide B 72 MTD75 Operation Guide Biocide B BLANK ...
Page 88: ...Inhibitor 86 MTD75 Operation Guide Inhibitor BLANK ...
Page 98: ...pH Control 96 MTD75 Operation Guide pH Control BLANK ...
Page 100: ...Alarm Relay 98 MTD75 Operation Guide Alarm Relay BLANK ...
Page 108: ...Electrodeless Conductivity Setup 106 MTD75 Operation Guide ECS Setup BLANK ...
Page 112: ...pH Input Setup 110 MTD75 Operation Guide pH Setup BLANK ...
Page 118: ...Redox Calibration 116 MTD75 Operation Guide Redox Calibration BLANK ...
Page 140: ...pH Calibration 138 MTD75 Operation Guide pH Calibration BLANK ...
Page 142: ...Calibration Reset 140 MTD75 Operation Guide Calibration Reset BLANK ...
Page 148: ...Current Outputs 146 MTD75 Operation Guide Current Outputs BLANK ...
Page 152: ...Digital Inputs 150 MTD75 Operation Guide Digital Inputs BLANK ...
Page 158: ...Configuration 156 MTD75 Operation Guide Configuration BLANK ...
Page 160: ...Update Software 158 MTD75 Operation Guide Update Software BLANK ...
Page 164: ...Save Restore Reset 162 MTD75 Operation Guide Save Restore Reset BLANK ...
Page 166: ...Error Messages 164 MTD75 Operation Guide Error Messages BLANK ...
Page 172: ...Modbus RS485 170 MTD75 Operation Guide Modbus RS485 BLANK ...
Page 184: ...Data Logging 182 MTD75 Operation Guide Data Logging BLANK ...
Page 246: ...Appendix F 244 MTD75 Operation Guide Appendix F Blank ...
Page 254: ...Appendix G 252 MTD75 Operation Guide Appendix G BLANK ...
Page 260: ...Notes 258 MTD75 Operation Guide ...
Page 261: ...Notes MTD75 Operation Guide 259 ...
Page 265: ......