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Flow Meter Technology Comparison

Technology Benets Installation Considerations Badger Meter

Products

Insertion Impeller 1% accuracy*

0.5% repeatability

60:1 turn-down ratio

Minimal pressure drop

Hot tap into operational pipe

Retract for maintenance without shutting

down system

Easy-to -install saddles can eliminate the

need to weld

Mechanical meter has moving parts

to maintain

Requires 10 pipe diameters upstream and

5 diameters downstream

Available for pipes 1-1/240"

SDI (1-1/236")

220 (240")

In-line Impeller 12% accuracy dependingon model*

0.30.5% repeatability depending

on model

15:1 turn-down ratio

Minimal pressure drop No adjustments needed for

meter alignment

Easily threaded or glued into

the pipe

Mechanical meter has moving parts

to maintain

Requires 10 pipe diameters upstream and

5 diameters downstream Plumbing must be drained where the meter

is being installed

Requires cutting pipe and

welding flanges

Available for pipe diameters 1/24"

380 Btu Meter (3/42")

735 (1/21")

4000 (1/21")

228/250B (1/21-1/2")

228PV (1-1/24")

In-line Electromagnetic 0.25% accuracy* 0.1% repeatability

250:1 or better turn-down ratio

depending on pipe diameter

No pressure drop

Different liner and electrode types

available for compatibility with

different fluid types

No moving parts to maintain

or replace

Plumbing must be drained where the meter

is being installed

Larger physical profile

Requires 3 pipe diameters upstream and

5 pipe diameters downstream

Available for pipe diameters 1/454"

M2000 (1/454")

Clamp-on Ultrasonic 1% accuracy* 0.5% repeatability

12:152:1 turn-down ratio

depending on pipe diameter

and material

No pressure drop

One size fits a wide range of types

and is therefore convenient to keep

in inventory

Ethernet network connectivity

No moving parts to maintain

or replace

Add onto operational pipe without

cutting pipe

Requires 10 pipe diameters up stream and

up 5 pipe diameters downstream

Pipe needs to be prepared to

accommodate bonding of transducers

using acoustical couplant

Available for pipe diameters 1/2100+"

TFX Ultra (1/2100+")

Portable Clamp-on

Ultrasonic

1 to 2% accuracy*

0.1% repeatability

12:152:1 turn-down ratio

No pressure drop

Convenient for temporary

measurements

No moving parts to maintain or

replace

No fluid compatibility issue

One size fits a wide range of

types and is convenient to keep

in inventory

Portable: Add onto operational pipe

without cutting pipe

Requires 10 pipe diameters upstream and

5 pipe diameters downstream

Pipe needs to be prepared to temporarily

affix transducers using acoustical couplant

Available for pipe diameters 1/2100+"

DXN (1/2100+")

*Accuracies are typical or volumetric ow aspect o the heat meters and do not include the uncertainty o diferent temperature

measures. Accuracies also do not represent rating degradation required or low ow conditions. Reer to product documentation or

specic guidance.

IND-CH-01-EN (March 2013)

Rev. 2