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Mobrey Hydratect 2462
Emerson Mobrey Hydratect 2462 User Manual
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Reference Manual
24625020, Rev AA
March 2017
Mobrey
™
Hydratect 2462
Steam/Water Detection System
2
Table of Contents
Table of Contents
5
Using this Manual
7
Product Recycling/Disposal
7
What the Hydratect 2462 Does
7
Steam and Water Detection
9
Contamination Detection
9
Fail-Safe Operation
9
The Hydratect 2462 Variants
10
Typical Applications
10
High Water Level Detection in a Drain Pot
10
Water Level Detection in a Boiler Drum
11
How Electrodes Operate
13
Conductivity and Resistance Values of Steam and Water
13
The Signal Returned by the Electrode
14
LED and Relay States for Electrodes
15
Electrode Installation Methods
17
Mounting an Electrode to an Insert
17
Welding the Electrode Insert to a Pipe
18
Fitting the Electrode-Insert Cover (Part One)
19
Fitting the Electrode
21
Fitting the Electrode-Insert Cover (Part Two)
22
Mounting Electrodes on a Manifold
24
Customized Manifolds
24
Installation Summary
27
Fitting Cable Glands
28
Mounting the Hydratect 2462 Control Unit
29
Setting the Printed Circuit Board (PCB) Jumpers
29
Connecting the Electronics
32
Preparing the Electrode Cable
32
Preparing the Fault and Status Relay Cable (for the Hydratect 2462A and 2462C)
36
Preparing the Fault and Status Relay Cables
39
(For the Hydratect 2462E)
39
Preparing the Power Supply Cables
42
Connecting the Prepared Cables to the Front Panel
43
Test Summary
45
Testing the Electrodes
46
Suggested Test for Water-Normal Setting
46
Suggested Test for Steam-Normal Setting
48
Service Summary
53
Safety Precautions
53
Periodic Check
53
Repairing an Electrode
54
Periodic System Overhaul
56
Electrode Replacement Parts
56
Fault Diagnosis
57
Correcting a Fault
58
Correcting a Power Loss Fault
58
Correcting Electrode Connection Faults
59
Electrode Contamination
60
Electronic Component Failure
60
Electronic Replacement Parts
61
Specifications
63
General
63
Display
63
Electrical
63
Mechanical
63
Environmental
63
Approvals
63
A.1 Specifications
63
A.2 Dimensional Drawing
64
Dimensional Drawing
64
4
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Emerson Mobrey Hydratect 2462 Specifications
General
Brand
Emerson
Model
Mobrey Hydratect 2462
Category
Measuring Instruments
Language
English
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