Meter orientation, Straight pipe requirements – Badger Meter M-Series M1000 User Manual

Page 9

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• Place power cables and signal cables in separate conduits .
• Place the meter where there is enough access for installation and maintenance tasks .

Meter Orientation

Mag meters can operate accurately in any pipeline orientation and can measure volumetric flow in forward and reverse

directions .

OTEE:

N

A "Forward Flow" direction arrow is printed on the detector label .

Vertical Placement
Mag meters perform best when placed vertically, with liquid flowing upward and meter electrodes in a closed, full pipe .

Figure 6: Vertical placement

Vertical placement allows the pipe to remain completely full, even in low flow, low pressure applications, and it prevents

solids build-up, sediment deposit and accumulation on the liner and electrodes .
Horizontal Placement

M1000 meters are equipped with an Empty Pipe

Detection feature . If an electrode mounted in the pipe

is not covered by fluid for five seconds, the meter will

display an Empty Pipe Detection condition . The meter

will send out an error message and stop measuring

flow . When the electrode is again covered with fluid,

the error message disappears and the meter will begin

measuring .

Electrode

Plane

RIGHT

Electrode

Plane

WRONG

Figure 7: Horizontal placement

When installing the meter on a horizontal pipe, mount the detector to the pipe with the flow-measuring electrode axis in a

horizontal plane (three and nine o’clock) . This placement helps prevent solids build-up, sediment deposit and accumulation

on the electrodes .

Straight Pipe Requirements

Sufficient straight-pipe runs are required at the

detector inlet and outlet for optimum meter accuracy

and performance . An equivalent of three diameters of

straight pipe is required on the inlet (upstream) side . Two

diameters are required on the outlet (downstream) side .

FORWARD FLOW

MINIMUM STRAIGHT PIPE

MINIMUM STRAIGHT PIPE

ELBOW

TEE

GATE VALVE

(FULLY OPEN)

MINIMUM STRAIGHT PIPE

CHECK VALVE

GLOBE VALVE

BUTTERFLY VALVE

PUMP

ELBOW

TEE

ANY VALVE

FLOWMETER

3 x D

7 x D

2 x D

D (Pipe Size)

D (Pipe Size)

MINIMUM PIPING REQUIREMENT

STANDARD CONCENTRIC
REDUCERS

(NO DISTANCE REQUIRED)

Figure 8: Straight pipe requirements

Meter location, orientation and applications

Page 9

July 2014

MAG-UM-00379-EN-02

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