TABLE OF CONTENTS General Information General Information, Features ....................Page 1 Specifications Specifications, Flow Range ......................Page 2 Installation and Grounding Positioning the Meter, Straight Pipe Recommendations, Full Pipe Recommendations, Fittings, Calibration, Chemical Injection, Metal Pipe Installations, Plastic Pipe Installations....... Page 3 Straight Pipe Recommendations ....................
Minimal straight pipe requirements with a variety of Dwyer Instruments Inc. and other displays allow FLMG Series meters to be used in piping configurations and controls for remote reading, data logging, pulse-to- where there is little space between the meter and an elbow.
SPECIFICATIONS SPECIFICATIONS* Pipe Sizes 4”, 6”, 8”, 10” Flanges ANSI 150 lb drilling Pressure 150 psi (10.3 bar) working pressure Temperature Operating 10˚ to 130˚ F (-12˚ to 54˚ C) Non-Operating -40˚ to 158˚ F (-40˚ to 70˚ C) Accuracy +/- 1% of reading for flow between 10% to 100% of max flow +/- 2% of reading for flow from cutoff to 10% of max flow Materials...
INSTALLATION and GROUNDING INSTALLATION EQUALIZATION AND GROUNDING Metal Pipe Installations. To equalize the electrical potential Caution: These flow sensors are not recommended of the fluid, the FLMG meter, and the surrounding pipe, secure where installation fault may expose the flow sen- sor to boiler pressure and temperature.
FULL PIPE RECOMMENDATIONS Recommended: Keeps pipe full at meter for accuracy FLMG FLMG Not Ideal: Allows air pockets to form at meter FLMG FLMG Recommended: Not Ideal: Keeps pipe full at meter for accuracy Post-valve cavitation can create air pocket FLMG FLMG Recommended:...
Pulse Output. The FLMG cable also provides pulse output that can be used for remote reading, 4-20 mA signal conversion, datalogging, and telemetry applications. See page 7 for connection diagrams to Dwyer Instruments Inc. controls and displays. Note: For data logger setup and operation, refer to Flow...
CONNECTIONS DIAGRAMS (WMX101) Cable Color Codes The FLMG requires a power source of 8-32 VDC at 30 mA max (see WARNING). The power cable also serves as a pulse Orange and Blue: Serial Output (Do Not Use) Green (+) and White (-): Pulse Output, 30 Vdc max, 10 mA max output if needed for remote reading, data logging, signal conversion, or telemetry.
TROUBLESHOOTING Problem Probable Cause Try... No power plus dead backup battery Replace battery pack, check power Blank Display connections Flow is below cutoff (very low) Reading will resume when flow increases Flow rate steadily reads zero when there is flow Reposition meter for full pipe (see page 4) Pipe is not full Meter is installed backwards...
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