Lake Monitors Case Drain Monitor - Manual (Page 2)

This manual is a service guide produced by the manufacturer and
provides specific procedures and/or illustrations for disassembly,
assembly, inspection, cleaning, and filtration. When followed properly,
these procedures will keep your flow meter in top operating condition.
It is important for operators and maintenance personnel to be safety
conscious when operating or repairing equipment. Developing a
thorough knowledge of the precautionary areas and following safe
operating procedures can prevent equipment damage and/or
personal injury. Before making any repair, read all of the repair
procedures to learn the correct method and all precautions.
Table of Contents
Specification and General Information
Specifications and Basic Application Information . . . . . . . . . . . . . . .3
Warning and Precautionary Areas . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Installation
Basic Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Fluid Flow in Reverse Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Bi-Directional Flow Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Operation
Operating Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Reading the Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Specific Gravity or Density Effect . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Viscosity Effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Pneumatic Meters Uses & Operating Theory . . . . . . . . . . . . . . . .9
Troubleshooting & Maintenance
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Cleaning and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Contamination and Filtration
Recommended Filtration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Stabilized Contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Contamination Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Interchangeable Floating Orifice Disks
Basic Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
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