Dwyer FLMG User Manual
SERIES FLMG
MUNICIPAL/INDUSTRIAL MAGMETER
INSTRUCTIONS
F-FLMG
TABLE OF CONTENTS
General Information
General Information, Features ................................................................................................... Page 1
Specications
Specications, Flow Range ............................................................................................................ Page 2
Installation and Grounding
Positioning the Meter,
Calibration, Chemical Injection, Metal Pipe Installations, Plastic Pipe Installations....................... Page 3
Straight Pipe Recommendations ................................................................................................ Page 4
Full Pipe Recommendations ...................................................................................................... Page 5
Inputs/Outputs and Operation
Power, Pulse Output, High Frequency Output/K-Factor, Display Reading ................................................... Page 6
Connections Diagrams
BAT/FLMG, RTI/FLMG .............................................................................................................. Page 7
Straight Pipe Recommendations, Full Pipe Recommendations, Fittings,
Troubleshooting
Problem, Probable Cause, To Try .................................................................................... Page 8
TABLES, DIAGRAMS & CHARTS
Features ...................................................................................................................................Page 1
Specifications .......................................................................................................................... Page 2
Flow Range ............................................................................................................................. Page 2
Metal Pipe Installation, Plastic Pipe Installation ..................................................................... Page 3
Straight Pipe Recommendations ............................................................................................. Page 4
Full Pipe Recommendations .................................................................................................... Page 5
High Frequency Output/K-Factor ............................................................................................................. Page 6
Display Readings ..................................................................................................................... Page 6
Connections Diagrams ............................................................................................................. Page 7
Troubleshooting ......................................................................................................................... Page 8
GENERAL INFORMATION
The Series FLMG is a anged electromagnetic owmetersfor
use in 4” to 10” pipe in municipal or industrial water and
wastewater applications where propeller meters have typically
been used in the past. Because the FLMG has no moving
parts and has electrodes designed to discourage fouling, this
magmeter performs well and requires much less frequent
maintenance in applications where debris or sand would
impede propeller meters. There is no rotor to stop turning
or bearings to wear out. Minimal straight pipe requirements
allow FLMG Series meters to be used in piping congurations
where there is little space between the meter and an elbow.
In chemical injection applications, the meter should be placed
upstream of the injection line or far enough downstream for
thorough mixing to occur before the meter.
Rate and total indication are standard on both models. Flow
measurement units are customer-selected and factory-set
and can only be changed in the eld by an authorized agent.
The Series FLMG is externally powered with 7-26 VDC at 30
mA max (see WARNING on Wiring Diagrams). Two Lithium
3.6V “AA” batteries provide backup during power failures,
allowing the meter to seamlessly continue recording ow rate
and total for the duration of the outage. Under intermittent
use, the battery life is approximately 10 years.
The 20-foot power cable also provides pulse output for use
with a variety of Dwyer Instruments Inc. and other displays
and controls for remote reading, data logging, pulse-toanalog conversion, and telemetry applications. An internal
data logger is also available for secure ow logging. Pulse
rate is customer-selected and factory-set and can only be
changed in the eld by an authorized agent. Default is high
frequency for use with 4 to20 mA signal conversion devices.
FEATURES
Rate and total indicator
Powder-coated diecast-aluminum electronics housing
Power/Output cable
Internal Data Logger (Optional)
Welded steel epoxy-coated ow tube
316 SS electrodes
Dual durometer rubber liner
Flanges, ANSI 150 lb drilling
Equalization lug
4” 6” 8” 10”
Gal/Min Liter/Sec Gal/Min Liter/Sec Gal/Min Liter/Sec Gal/Min Liter/Sec
12 .75 32 2 60 3.8 95 6
500 31.5 1,200 75.7 2,200 138.8 3,500 220.8
Page 1
Loading...