Lake-monitors Case Drain Monitor User Manual

Flow MetersInstallation, Operation &Maintenance Manualwww.lakemonitors.com

Measuring ranges cover 1.5-12 SCFM through 150-1300 SCFM.Twenty-four port sizes from 1/8" through 2" in NPT, SAE and BSP canbe ordered to me

DENSITY CORRECTION FACTORSSCFM (indicated) x (CF) = SCFM (Actual) CF= (F1) x (F2) X (F3)Note: all correction factors need not be used.Table 1. (f1)

Selecting the Proper MeterTo order a pneumatic flow meter the following information is required:n pipe size and port stylen media (air, nitrogen, argo

TROUBLESHOOTING & MAINTENANCE(13)TROUBLESHOOTING CHARTMalfunction: Magnet follower sticks in mid-scale and will not return to the “no flow” positi

TROUBLESHOOTING CHART (CONTINUED)Malfunction: Window tube is cracking or crazing.Possible Cause:Using incompatible cleaning solutionon Lexan window tu

DisassemblyImportant: It is not necessary to remove window tube or window seals to clean the meter. Note also how the meterdisassembles for easy of re

IMPORTANT: If inner cartridge does not slide out freely, it may be sign of contamination. The transfer magnet is a powerful ALNICO magnet. Keep it awa

Cleaning and InspectionNote: If the inner cartridge is damaged or contaminated beyond repair, the complete meter can be sent to the manufacturer for e

CONTAMINATION AND FILTRATIONRecommended FiltrationThe manufacturer recommends system filtration of at least 74 micronfilter or a 200 mesh screen. It h

Self-Generation ContaminationSelf-generated contamination is a product of wear, cavitation,fluid breakdown and corrosion. Systems that are carefully f

This manual is a service guide produced by the manufacturer andprovides specific procedures and/or illustrations for disassembly,assembly, inspection,

For downloadable product manuals,data sheets and CAD drawings,visit Lake’s web site today!www.lakemonitors.comLAKE MONITORS 8809 INDUSTRIAL DRIVE, F

Basic Application InformationThe flow meter can be installed directly in the fluid line without flowstraighteners or special piping. The meter is used

Warning and Precautionary Areas1) The meters are designed to operate in systems that flow in only one direction: the direction of the arrow on the flo

INSTALLATIONBasic Installation InstructionsThe meters are mounted in-line and are direct reading. The meterscan be mounted in a vertical or horizontal

Fluid Flow in Reverse DirectionThe standard meter will not permit flow in the reverse direction(opposite direction to the arrow printed on the flow ra

OPERATIONOperating PrinciplesLake has developed a line of unique flow meters which combine thesimplicity of a sharp-edged orifice disk and a variable

1. End Porting 8. Flowing Sharp-Edged Orifice Disk2. Body Casing 9. Tapered Center Shaft3. Magnet Follower 10. Transfer Magnet4. Window Tube 11. Scale

The indicated flow reading will read high for heavier fluids and low forlighter fluids. A corrective factor can be applied to the standard scaleor a s