DMD-Roots DIVISION DRESSER EQUIPMENT GROUP, Inc.a Halliburton company

P.O. Box 42176Houston, TX 77242-2176

Inside US: Ph: 800-521-1114 Fax: 800-335-5224Outside US: Ph: 281-966-4300 Fax: 281-966-4307ROOTS Meters & Instruments

ROOTS Blowers & Compressors ROOTS Meters & Instruments DRESSER Piping Specialties MOONEY CONTROLS FLO Systems

© 2000 Dresser Equipment Group, Inc.Roots® & DataSAFE® are registered trademarks of Dresser Equipment Group, Inc.Pete’s Plug II® is a registered trademark of Peterson Equipment Company.LineBacker® is a trademark of PSI.

M&I-MPS Rev. 4/00

DMD-Roots DIVISION, ROOTS Meters & InstrumentsDresser Equipment Group, Inc.P.O. Box 42176Houston, Texas, USA 77242-2176Phone: 281-966-4300Fax: 281-966-4307

IN THE UK

DRESSER UK LTD., ROOTS Meters and InstrumentsP.O. Box B7 TurnbridgeHuddersfield, England HD1 6RB, UKPhone: 44-1484-422-222Fax: 44-1484-422-668

DRESSER UK LTD., Instrument OperationUnit 1 Yeoman Industrial Park, Test LaneNursling, Southampton, England S016 9JX, UKPhone: 44-2380-875-600Fax: 44-2380-875-601

IN EUROPE

DRESSER INDUSTRIAL PRODUCTS B.V.industrieterrein 4- NL 5981 NKP.O. Box 7163 - NL 5980 ADPanningen, The NetherlandsPhone: 31-77-306-6040Fax: 31-77-307-6494

IN CANADA

DMD-Roots DIVISION, Mississauga Operations2135 Meadowpine Blvd.Mississauga, Ontario, L5N 6L5 CanadaPhone: 905-826-8411Fax: 905-826-9106

Productsand Services

Inte

grat

ed S

olut

ions

M&I-MPS Rev. 4/00

Inte

grat

ed S

olut

ions

HN02334

ROOT

S® M

eter

Tec

hnic

al D

ata

G-Ra

ting

Siz

ing

Cha

rts

ROOTS® Meter Sizing ChartLI

NE M

OUNT

EDM

ODEL

G16

G25

G40

G65

G100

G160

G250

G400

G650

G100

0BA

SE R

ATIN

G (m

3/h)

2540

6510

016

025

040

065

010

0010

00

MET

ER O

PERA

TING

PRE

SSUR

EBa

rkP

akg

/cm

2PS

IG0,

076,

90,

071

26,1

41,

8

67,

9

104

,5

167,

2

2

70,7

418,

0

6

79,3

1045

1672

0,21

20,7

0,21

3

29

,5

4

7,2

7

6,8

1

18,1

18

9,0

305

,9

472

,4

767

,7

118

1,0

188

9,6

0,34

34,5

0,35

5

32

,9

5

2,7

8

5,6

1

31,7

21

0,7

329

,3

526

,8

8

560,

5

131

7,0

210

7,2

0,69

69,0

0,70

10

4

1,4

66,

2

1

07,6

165,

6

2

65,0

414

,0

662

,4

1

076,

4

165

6,0

264

9,6

110

01,

02

14,

5

48,9

78,

2

1

27,1

195,

5

3

12,8

488

,8

782

,0

1

270,

819

5531

281,

515

01,

5322

61,

5

9

8,4

159

,8

24

5,9

393

,5

6

14,8

9

83,7

159

8,5

2

459,

2

3

934,

72

200

2,04

29

7

3,7

1

17,8

19

1,5

2

94,6

47

1,4

736

,5

117

8,4

1914

,929

46

47

13,6

330

03,

0644

98,

5

157

,6

256,

0

393

,9

630,

2

9

84,7

1

575,

5

25

60,2

3

938,

8

6

302,

04

400

4,08

58

122

,9

19

6,6

319

,5

49

1,5

786

,4

12

28,8

1

966,

0

31

94,8

4915

7864

550

05,

1073

1

47,8

236,

5

3

84,3

591,

2

9

45,9

1477

,9

236

4,6

3842

,5

591

1,6

945

8,5

660

06,

1287

1

72,1

275,

4

4

47,5

688,

4

11

01,4

1721

,0

275

3,6

4474

,6

688

4,0

1101

4,4

770

07,

1410

2

197

,1

31

5,4

512

,5

78

8,4

1261

,5

19

71,1

3

153,

7

51

24,8

7

884,

4

12

615,

0

880

08,

1611

6

221

,3

35

4,1

575

,4

88

5,3

1416

,5

22

13,3

3

541,

2

57

54,5

8853

1

4164

,89

900

9,18

131

2

46,4

394,

3

6

40,7

985,

7

15

77,1

2464

,3

394

2,9

6407

,1

985

7,1

1577

1,4

1010

0010

,20

145

2

70,5

432,

8

7

03,4

1

082,

1

17

31,4

2705

,3

432

8,4

7033

,710

821

17

313,

611

1100

11,2

116

0

295

,7

47

3,2

768

,9

118

3,0

1892

,8

29

57,5

4

732,

0

76

89,5

11

829,

9

18

927,

912

1200

12,3

017

5

321

,5

51

4,4

836

1286

20

57,6

3215

,051

4483

5912

860

2057

6

13,8

1380

14,0

620

0

363

,75

582

ROOT

S® H

IGH

PRES

SURE

MET

ERS

MOD

ELG1

6-30

0G1

6-74

0G1

6-14

80G6

5-30

0G6

5-74

0G6

5-14

80G6

5-60

0BA

SE R

ATIN

G (m

3/h)

2525

2510

010

010

010

0M

ETER

OPE

RATI

NG P

RESS

URE

CORR

ECTE

D CA

PACI

TY A

T M

ETER

ING

PRES

SURE

- IN

N m

3/H

Bar

kPa

kg/c

m2

PSIG

8,

686

2

8,8

125

237

237

237

946

946

946

946

10,

310

34

1

0,5

150

279

279

279

1116

1116

1116

1116

12,

112

07

1

2,3

175

322

322

322

1286

1286

1286

1286

13,

813

79

1

4,1

200

364

364

364

1455

1455

1455

1455

17,

217

24

1

7,6

250

449

449

449

1795

1795

1795

1795

20,

720

68

2

1,1

300

534

534

534

2134

2134

2134

2134

24,

124

13

2

4,6

350

619

619

2474

2474

2474

27,

627

58

2

8,1

400

703

703

2813

2813

2813

34,

534

47

3

5,2

500

873

873

3492

3492

3492

41,

441

37

4

2,2

600

1043

1043

4171

4171

4171

48,

348

26

4

9,2

700

1213

1213

4850

4850

51,

051

02

5

2,0

740

1281

1281

5122

5122

55,

255

16

5

6,2

800

1382

5529

62,

162

05

6

3,3

900

1552

6208

69,

068

95

7

0,3

1000

1722

6887

82,

882

74

8

4,4

1200

2061

8244

99,

399

29

10

1,2

1440

2469

9874

102,

110

204

1

04,1

1480

2537

1014

6

For almost a century, ROOTS®

meters have been used for billing

of commercial and industrial gas

loads. Accuracy, dependability,

and low maintenance are of key

importance in custody transfer

measurement applications.

The time-proven ROOTS® meter

is the preferred rotary positive

displacement gas meter in

distribution, transmission and

production segments for accurate

measurement of gas from the

well to the burner.

To meet the evolving needs

of our customers, our product

line has expanded to include

a large variety of control and

measurement equipment.

ROOTS Meters & Instruments

is much more than just a meter

supplier. We offer a wide range

of ROOTS® products and services.

ISO9

001

Met

ric S

izin

g C

hart

sROOTS® Meter Sizing Chart

HIGH

PRE

SSUR

E M

ETER

SM

ODEL

1M30

01M

740

1M14

803M

300

3M74

03M

1480

3,6M

600

7M14

40RA

TING

2828

2885

8585

102

200

PSIG

Bar

kPa

CORR

ECTE

D CA

PACI

TY A

T M

ETER

ING

PRES

SURE

- IN

Nm

3/H

125

8,6

862

268,

026

8,0

268,

080

4,0

804,

080

4,0

964,

818

76,1

150

1010

3431

6,1

316,

131

6,1

948,

294

8,2

948,

211

37,9

2212

,517

512

1207

364,

136

4,1

364,

110

92,4

1092

,410

92,4

1310

,925

49,0

200

1413

7941

2,2

412,

241

2,2

1236

,612

36,6

1236

,614

83,9

2885

,425

017

1724

508,

350

8,3

508,

315

25,0

1525

,015

25,0

1830

,035

58,4

300

2120

6860

4,5

604,

560

4,5

1813

,418

13,4

1813

,421

76,1

4231

,335

024

2413

700,

670

0,6

210,

821

0,8

2522

,249

04,2

500

3434

4798

9,0

989,

029

67,0

2967

,035

60,4

6922

,960

041

4137

1181

,211

81,2

3543

,735

42,7

4252

,582

68,7

740

5151

0214

50,4

1450

,443

51,2

4351

,210

152,

980

055

5516

1565

,846

97,3

1096

0,4

900

6262

0517

58,0

5274

,112

306,

212

0083

8274

2334

,870

04,4

1634

3,7

1440

9999

2927

96,2

8388

,719

573,

714

8010

210

204

2873

,186

19,4

QUAL

ITY

PROD

UCTS

DEPE

NDAB

LE S

ERVI

CE

LINE

MOU

NTED

Foot

Mou

ntM

ODEL

8C17

5*11

C175

*15

C175

*2M

175

3M17

55M

175

7M17

511

M17

516

M17

523

M17

538

M17

556

M12

510

2M12

5

*ALS

O AV

AILA

BLE

WIT

H 20

0 PS

IG R

ATIN

G (1

3,8

BAR)

; (13

79 K

pa);

(14,

1 kg

/cm

2)RA

TING

22,6

3142

5785

142

200

310

450

650

1000

1600

2885

PSIG

Bar

kPa

CORR

ECTE

D CA

PACI

TY A

T M

ETER

ING

PRES

SURE

— IN

Nm

3/H

10,

077

23,7

32,6

44,4

59,2

88,8

148,

020

7,3

325,

747

3,7

681,

011

25,1

1658

,130

20,0

30,

2121

26,8

36,8

50,2

66,9

100,

416

7,3

234,

236

8,0

535,

376

9,4

1271

,218

73,4

3412

,25

0,34

3429

,841

,055

,974

,611

1,9

186,

526

1,1

410,

359

6,8

857,

914

17,3

2088

,738

04,5

100,

6969

37,5

51,6

70,4

93,8

140,

723

4,6

328,

451

6,0

750,

610

79,0

1782

,626

27,1

4785

,015

1,03

103

45,2

62,2

84,8

113,

016

9,6

282,

639

5,7

621,

890

4,4

1300

,121

47,9

3165

,457

65,5

201,

3813

852

,972

,899

,213

2,3

198,

433

0,7

463,

072

7,5

1058

,215

21,2

2513

,237

03,7

6746

,025

1,72

172

60,6

83,3

113,

615

1,5

227,

337

8,8

530,

383

3,3

1212

,017

42,3

2878

,542

42,0

7726

,630

2,1

207

68,3

93,9

128,

017

0,7

256,

142

6,8

597,

593

9,0

1365

,819

63,4

3243

,847

80,4

8707

,140

2,8

276

83,7

115,

015

6,9

209,

231

3,8

522,

973

2,1

1150

,516

73,4

2405

,639

74,4

5857

,010

668,

250

3,4

345

99,1

136,

218

5,7

247,

637

1,4

619,

186

6,7

1362

,019

81,1

2847

,847

05,0

6933

,712

629,

260

4,1

414

114,

415

7,3

214,

628

6,1

429,

171

5,2

1001

,315

73,5

2288

,732

90,0

5435

,680

10,3

1459

0,3

704,

848

312

9,8

178,

524

3,4

324,

548

6,8

811,

311

35,9

1784

,925

96,3

3732

,261

66,2

9087

,016

551,

380

5,5

552

145,

219

9,6

272,

236

3,0

544,

590

7,5

1270

,519

96,4

2903

,941

74,4

6896

,810

163,

718

512,

490

6,2

621

160,

622

0,8

301,

140

1,4

602,

210

03,6

1405

,022

07,9

3211

,546

16,6

7627

,411

240,

320

473,

510

06,

968

917

6,0

241,

932

9,9

439,

965

9,8

1099

,715

39,6

2419

,435

19,1

5058

,883

58,0

1231

7,0

2243

4,5

110

7,6

758

191,

326

3,1

358,

847

8,3

717,

511

95,9

1674

,226

30,9

3826

,855

01,0

9088

,513

393,

624

395,

612

08,

382

720

6,7

284,

238

7,6

516,

877

5,2

1292

,018

08,8

2842

,441

34,4

5943

,298

19,1

1447

0,3

2635

6,6

125

8,6

862

214,

429

4,8

402,

053

6,0

804,

013

40,1

1876

,129

48,1

4288

,261

64,3

1018

4,4

1500

8,6

2733

7,2

135

9,3

931

229,

831

6,0

430,

957

4,5

861,

714

36,2

2010

,731

59,6

4595

,866

06,5

1091

5,0

1608

5,3

150

1010

3425

2,9

347,

747

4,1

632,

294

8,2

1580

,422

12,5

3476

,850

57,2

7269

,812

010,

917

700,

317

512

1207

291,

340

0,6

546,

272

8,3

1092

,418

20,7

2549

,040

05,6

5826

,383

75,3

1383

7,4

2039

1,9

200

1413

7932

9,8

453,

461

8,3

Impe

rial

Siz

ing

Cha

rts

ROOTS® Meter Sizing Chart

Note

: All

capa

citie

s lis

ted

are

Stan

dard

Cub

ic F

eet p

er H

our (

SCFH

) and

bas

ed u

pon

Aver

age

Atm

osph

eric

Pre

ssur

e(1

4.4

PSIA

), B

ase

Pres

sure

(14

.73

PSIA

), a

nd B

ase

Tem

pera

ture

(60

˚F).

Tab

les

do n

ot t

ake

into

acc

ount

Supe

rcom

pres

sabi

lity.

Plea

se r

efer

to

RM-1

35 f

or f

urth

er in

form

atio

n on

the

App

licat

ion

of T

empe

ratu

re a

nd/o

rPr

essu

re C

orre

ctio

n Fa

ctor

s in

Gas

Mea

sure

men

t.

SIZI

NG IN

STRU

CTIO

NS

To s

elec

t the

pro

per m

eter

size

, use

the

Min

imum

Ope

ratin

g Pr

essu

re a

nd th

e M

axim

um In

stan

tane

ous

Hour

lyFl

ow R

ate.

Do

not e

xcee

d m

eter

’s m

axim

um a

llow

able

ope

ratin

g pr

essu

re.

To p

reve

nt o

vers

izing

of a

met

er, s

izing

sho

uld

be b

ased

upo

n th

e to

tal c

onne

cted

load

giv

ing

cons

ider

atio

n to

the

load

div

ersi

ty. W

hen

usin

g th

is m

etho

d to

size

a m

eter

, a s

elec

ted

dive

rsity

fact

or ti

mes

the

tota

l con

nect

edlo

ad w

ill b

e us

ed a

s th

e M

axim

um In

stan

tane

ous

Flow

Rat

e fo

r sizi

ng p

urpo

ses.

A di

vers

ity fa

ctor

of 0

.85

is c

omm

only

use

d fo

r a s

ingl

e ap

plic

atio

n w

here

two

or m

ore

maj

or a

pplia

nces

are

inus

e (i.

e. b

oile

rs, f

urna

ces,

spa

ce h

eate

rs, e

tc.)

As th

e nu

mbe

r of a

pplia

nces

con

side

red

whe

n de

term

inin

g a

conn

ecte

d lo

ad in

crea

ses,

the

dive

rsity

fact

or w

illty

pica

lly d

ecre

ase.

For

app

licat

ions

suc

h as

mul

tiple

rang

es a

nd w

ater

hea

ters

, som

e ex

ampl

es o

f com

mon

lyus

ed d

iver

sity

fact

ors

are:

Qty

Fact

orQt

yFa

ctor

*0-

51

60.

97

0.85

80.

83

*The

div

ersi

ty fa

ctor

s lis

ted

abov

e ar

e es

timat

es.

For p

rope

r sizi

ng, c

onsu

lt yo

ur c

ompa

ny o

r ind

ustr

yst

anda

rds

for d

eter

min

ing

acce

pted

val

ues.

ENER

GY V

ALUE

Ga

sBT

U/Cu

. Ft.

Ac

etyl

ene

1498

Bu

tane

3200

Et

hane

1758

Et

hyle

ne16

06

Met

hane

997

Na

tura

l96

5/10

55

Prop

ane

2550

HIGH

PRE

SSUR

E M

ETER

SM

ODEL

1M30

01M

740

1M14

803M

300

3M74

03M

1480

3.6M

600

7M14

40RA

TING

1000

1000

1000

3000

3000

3000

3600

7000

PSIG

COR

RECT

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.9

Rotary Meters

ElectronicInstrumentation

Transfer Provers

ProductRemanufacturingServices

Test Equipment

Meter Stations

Meter Sets

Meter Set Components

On-Site Field TrainingCourses

Factory TrainingSchools

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The ROOTS® METER ADVANTAGE

Proven Accuracy

• Volumetric accuracy is permanent and non-adjustable.

• Measuring characteristics established by the precision machined contours ofnon-wearing fixed and rotating parts.

• Durable components ensure a long life expectancy under normal operatingconditions.

• Wide rangeability is maintained throughout the meter’s operating range, regardlessof pressure and flow.

Meters For Commercial & Industrial Applications

• Line Mount Meters

• Foot Mount Meters

• High Pressure Meters

Magnetically Coupled Accessory Units

• Large variety of readout and output options.

• Non-pressurized and interchangeable modular design simplifies conversionbetween meter versions.

• Permanently lubricated Series 3 Accessories combine a long life expectancy with areduction in maintenance.

• Commonality of Series 3 Accessory components reduces inventory requirements.

Full Line of Electronic Instrumentation

• Pressure (P), Temperature (T), and PT Correctors.

• Temperature or Temperature with Fixed Pressure Factor (FF) Compensators.

• Solid State Pulsers to interface with Automated Meter Reading (AMR) devices andfor remote readings.

• Loggers for Pressure, Volume and Temperature.

Customer Service

Our unsurpassed customer service is provided through the combined efforts ofour Customer Service, Technical Support, and Product Services Departments.Each department takes pride in their ability to deliver courteous and professionalcare to all customers in a timely manner. As described below, the departments arestructured to efficiently support all customer service requirements:

• Customer Service representatives for inquiries and order placement.

• Technical Services staff for product application assistance and training.

• Product Services Department for remanufacturing and testing services.

2

ROOTS® PRODUCT SERVICES

DMD-Roots Product ServicesOur Product Services Department offers repair, remanufacturing,

testing and calibration service for all ROOTS® meters, provers, and

instrumentation. At DMD-Roots, our focus is on customer

satisfaction. Let the experts handle your ROOTS® products repair

and calibration needs.

The overall cost effectiveness of factory service is enhanced by:

• Standardized and competitive service levels

• Specialization in contract services

• Inspection for warranty and upgrades

• Line Mount Meters returned freight prepaid to the first pointof delivery within the United States.

DMD-Roots Educational ServicesTraining Is An Investment In Your Company’s Future

The down time associated with servicing a ROOTS® meter or

instrument can be drastically reduced by ensuring qualified

personnel are available to perform the necessary work. A variety

of educational programs are available on topics ranging from

General Meter Maintenance to Model 5 ROOTS® prover training.

One and two day on-site training is available as well as a three-day

factory training school at the DMD-Roots facility. All of these

programs are designed to expand the capabilities of operations

and maintenance personnel.

DMD-Roots On-Site Field Training Courses and Factory Training

Schools are available to users of ROOTS® products in the

Natural Gas Industry (Local Distribution, Transmission, &

Production companies).

Industrial users and accounts covered by an authorized

DRESSER Distributor should contact their supplier for all

training and service requirements.

DMD-Roots FLOSystemsThis business unit of DMD-Roots Division offers complete design

and market services for meter and regulator stations worldwide.

Backed by many years of experience, we can design a meter

station to customer specifications, or provide a complete meter

station ready for installation.

15

ROOTS® METER SETS & ACCESSORIES

Flange GasketsLineBackerTM gaskets, with their unique sealing element, use the

lowest possible clamp and compressive load to eliminate flange

leaks. The patented design also reduces the problems involved in

sealing misaligned flanges.

Coated Flange BoltsThese bolts have a lubricious, polymer-based coating to help

prevent galling of the threads in the meter body.

Pete’s Plug II® Test PlugAllows user to take pressure and temperature readings quickly

while eliminating the cost of leaving gauges or temperature

indicators in line. Pete’s Plug II® test plug is still the only pressure

and temperature test plug with two self-closing valves.

ROOTSTM Versi-Temp II meter oilApproved for use in all ROOTS® meters. The oil is packaged in

quantities from 14 ounces to 55 gallons.

ThermowellThermowells provide protection for temperature measurement

devices inserted in a gas stream. Available in 4 and 6 inch

lengths with a 1 inch NPT insertion connection and a 1/2 inch

NPT opening.

Thermowell

Gaskets

Pete’s Plug II®

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Bolts

Versi-Temp II

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14

The ROOTS® METER OPERATING PRINCIPLE

The ROOTS® meter is designed to measure the volume of

gases and gas mixtures with a high degree of accuracy. The

industry accepted rotary type positive displacement operating

principle ensures permanent, non-adjustable accuracy by using

precision machined two-lobe impellers encased within a rigid

measuring chamber.

Unlike other meter types, measurement accuracy is not affected

by changes in gas specific gravity, pressure, or fluctuating flow.

ROOTS® meters may be used from a few ounces to full capacity

up to the meter’s maximum pressure rating with highly accurate

measurement over a wide operating range. This equates to a lower

total cost.

The condition of a ROOTS® rotary meter can be verified by

performing a differential rate test while the meter is still in service.

This simple and cost-effective preventive maintenance procedure

contributes to a significant reduction in the wholelife cost of

the meter.

As shown in the picture, two contra-rotating impellers of two-lobe or “figure 8” contour are encased within a rigid measuringchamber, with inlet and outlet connections on opposite sides.Precision machined timing gears keep the impellers in correctrelative position. Optimal operating clearances between theimpellers, cylinder and headplates provide a continuous, non-contacting seal.

ROOTS® meter product lineA complete line of rotary meter sizes are available to measure a

wide range of gas volumes for the majority of commercial and

industrial applications in custody transfer applications. Refer to

the Meter Sizing Chart in this brochure to determine the correct

meter size for cost effectiveness and accurate measurement.

ROOTS® meters are suitable for handling most types of clean,

common gases at either constant or varying flow rates and

pressure. They are ideal for applications throughout the meter’s

operating range, from a few ounces to full maximum allowable

operating pressure.

Our meters are widely recognized for their highly accurate

measurement capabilities at both the low and high end of their

rated capacity. The meter’s rangeability (ability to measure gas

over a wide flow range within a specified accuracy) provides the

best over-all measurement accuracy on a “day-after-day” basis.

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Precision machined forexceptional accuracy

3

ROOTS® SERIES B3 LINE MOUNT METERSwith Life-Lubed Accessory Unit

8C/11C/15C

2M/3M/5M

7M/11M/16M

23M/38M/56M(23M/38M 4 pictured)

A full range of meters are available in capacity ratings

from 800 CFH to 56,000 CFH (22,6 m3/h to 1,600 m3/h)

with a maximum operating pressure rating of 175 PSIG

(12 Bar). Models 8C through 2M are available with a 200

PSIG (13,8 Bar) rating upon request. The five smallest

meter sizes (8C through 3M) have 2” (50 mm) flanged

connections, and a 6-3/4” (171 mm) flange-to-flange

dimension. If application requirements change, this

unique feature allows a quick and easy meter exchange

without the need to re-pipe the meter set. All Series B

meters utilize the versatile Series 3 Accessories.

For operating requirements beyond those listed, please

contact your ROOTS Meters & Instruments representative.

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4

ROOTS® METER SETS & ACCESSORIES

Ultraseal®

Pipeline

ROOTS® Ultraseal® gas meter valvesUltraseal® valves are permanently lubricated and bi-directional.

They meet NPFA standards and continue to maintain a bubble-tight

seal after qualification testing to over 10,000 cycles. Torque values

remain low even at subzero temperatures. Locking plates are

also available.

ROOTS® pipeline strainersThese strainers are designed to protect meters and other precision

devices from the damaging effects of entrained system debris.

A low pressure drop is achieved through a large element area

and venturi port design. The debris bowl is tapped for cleaning.

ROOTS® gasket strainersUsing a 20 mesh stainless steel screen, the Gasket Strainer

helps protect against potential damage to precision pipeline

measurement and regulation equipment caused by occasional

introduction of weld slag, plastic pipe shavings, or other debris.

Restricting Orifice PlatesSized orifice plates provide low cost protection against meter

overspeed. The plates are designed to choke gas flow at 100%

for meters rated over 300 PSIG. Plates are installed 2 to 4 pipe

diameters downstream for maximum effectiveness.

Companion Flange AssembliesThese include all the equipment necessary for mounting a meter

in a pipeline. The kit consists of flanges, coated flange bolts,

and gaskets.

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OrificePlates

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Gasket

FlangeAssemblies

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13

ROOTS® METER SETS & ACCESSORIES

A full line of meter set components are available for a one-stop-

shopping approach to meter set design and installation. Reduce

your installation cost with a professionally designed and tested

DMD-Roots meter set.

Pre-Fabricated Meter SetsDresser offers both Standard and Customer Specified designs.

These modular meter sets are packaged for economical shipping

and storage. Benefits include design standardization, reduced

inventories, and lower overhead costs.

Quick-Change KitsQuick-Change kits provide an easy, cost-effective method

of changing from a diaphragm to a ROOTS® meter. Each kit

provides all the necessary piping and hardware required for

a fast and smooth change over.

Mooney RegulatorsHigh Performance, ease of maintenance, low minimum differential

and versatility are important characteristics of the FLOWGRIDTM

Regulator. This complete line of pilot-operated regulators is

ideal for pressure reducing, back-pressure and flow control

applications. Mooney, a recognized name in the gas industry,

is an operation of DMD-Roots DIVISION.

Regulators

Pre-Fabricated

Quick-Change

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12

ROOTS® SERIES 3 ACCESSORY UNITS

CTR

TC

CD/TD

SolidStatePulser

Designed for low maintenance and along service life.

Counter (CTR)An 8 digit non-compensated index registers displaced volume in

Actual Cubic Feet (ACF) or in Actual Cubic Meters (m3).

Temperature Compensated (TC)Temperature compensation, available in meter sizes 8C-16M, is

accomplished by a mechanical computer with a spiral bi-metallic

thermocouple (probe) located in a sealed temperature well at the

meter inlet. Series 3 TC Units provide corrected gas volume

readings to a 60˚F (15˚C) base temperature for readout in Standard

Cubic Feet (SCF) or Normal meters Cubed (Nm3) between flowing

temperatures of -20˚F and +120˚F (-29˚C and + 49˚C).

Counter or Temperature Compensatedwith Instrument Drive (CD/TD)The Universal Instrument Drive (ID) Assembly adapts to the CTR

and TC Accessory for installation of a corrector, chart recorder, or

other externally mounted, mechanically driven device. The ID

Assembly is mechanically linked to the CTR/TC mechanical gear

reduction unit. One revolution of the instrument drive dog

represents a specific displaced volume measured by the meter.

Solid State PulserThe ROOTS® solid state pulser mounts directly to a CTR/TC

Unit, generating low frequency pulses representing volumetric

information for remote reading. Mechanical switches have been

eliminated for maximum reliability. No battery or maintenance

is required.

• Interchangeability among Series B meter bodies of thesame size.

• Permanently lubricated for long life and virtually maintenance-free operation.

• Modular design allows a quick-change to a different version ata lower overall cost.

• Durable, weather resistant cover with improved sealingcapability.

• Versatile and configurable odometer masking.

• Universal Instrument Drive (ID) assembly - one size fits all8C-56M Series B Meters.

• Quick and easy field installation of the low cost SolidState Pulser.

• Available with factory pre-installed magnets for quickinstallation of the Solid State Pulser or Model 5 ProverField Counter Pulser Module.

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5

ROOTS® EXPANDED METER LINE

Series Z Compact MetersAesthetically pleasing 5C15 and 8C15 compact line mounted

meters are ideal for small commercial loads at pressures up to

15 PSIG (1 Bar). A dial face index is standard. An odometer-type

index is available upon request.

Series A (LM-MA) MetersThe 8C175 compact meter, like the Series Z, is also ideal for

small commercial applications, but with a higher pressure rating.

This meter is rated for a 175 PSIG (12 Bar) working pressure.

Series A1 Foot Mount MeterThe 102M125 Foot Mount meter is used for the measurement

of high volume industrial gas loads for capacities up to

965.3 MSCFH at 125 PSIG (27,941 Nm3/h at 8,6 Bar).

Series B3 High Pressure (300 PSIG) MetersModified Series B meter bodies combined with the new

Series 3 Accessory Units make the 1M300 and 3M300 meters

excellent cost effective measurement tools for pressures up to

300 PSIG (24 Bar). These meters are designed to mate with

ANSI 300# flanges and have a 6-3/4 inch (171 mm) flange-to-

flange dimension.

Series B3-HPC High Pressure Cartridge MetersThis meter line features the Series 3 Accessory and utilizes one

common body casting for two meter sizes - the 1M1480 and

3M1480. As an option, these meters may be ordered as either a

1M740 or 3M740. The measuring cartridges for the 1M and 3M

meters are field replaceable and interchangeable.

High Pressure MetersROOTS® high pressure meters are designed for higher capacity

applications than Series B3-HPC meters. Available models include

the 3.6M600 and the 7M1440. Materials of construction are cast

ductile iron and cast steel to meet the demands of the higher

pressure applications.

Series D4 High Temperature Body MetersThe Series D4 Meter, available in six sizes, is designed for

industrial applications to working pressures of 235 PSIG and

operating temperatures of -40˚F to 140˚F. The Series D4 Meter

is DVGW approved to withstand external temperatures to

1200˚F with minimal leakage.

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Series Z

Series A(LM-MA)

Series A1

Series B3

SeriesB3-HPC

HighPressure

Series D-4

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6

ROOTS® TEST EQUIPMENT

Versi-Test

Manometer

Leak Tester

ROOTS® Versi-Test calibratorThis unique instrument measures pressure, flow, vacuum,

temperature, leak current, voltage, and change of state for

switch testing. A fully equipped Versi-Test system provides

accurate calibration capabilities needed virtually in all pressure/

temperature measurement and test applications. It is a perfect tool

for Differential Pressure Testing of Rotary Meters or serving as

a measurement standard for the calibration of pressure and/or

temperature transducers.

Smart ManometerThe Smart Manometer is the first pressure measuring instrument

with an accuracy of ± 0.025% of full scale at a truly low cost.

As a replacement for glass manometers, this microprocessor

based system, manufactured by Meriam Instrument, has been

designed for the measurement of differential pressures across

a rotary meter.

Pulse Loop TesterThe ROOTS® pulse loop tester is a battery-powered instrument

designed for testing and troubleshooting one and two channel

pulse output systems. LED indicators display the contact state

of one or two Form A or Form C switches. An internal buzzer

can also be enabled to sound when a pulse occurs through

selected channels.

Accessory Unit Leak TesterPerforming a leak test on a newly installed ROOTS® accessory

unit allows a user to verify proper installation by applying a static

pressure load inside the accessory. A properly installed unit will

maintain the selected pressure for a minimum of 60 seconds.

The test equipment attaches easily to any of the ROOTS®

Series 1 (LM-MA) or Series 2 (TQM) accessories.

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Tester

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11

ROOTS® OPTIONAL ELECTRONIC PRODUCTS

Solid State Transmitter (XMTR)• High frequency pulse output

• 100 pulses per input shaft revolution

• Solid State circuitry provides a long life expectancy

• Mounts on any standard Instrument Drive

• 10 to 15 VDC

EC-2• Utilizes analog temperature, pressure, and flow inputs to

yield corrected volume.

• Displays compensated rate and total flow

• Flow rate, temperature, and pressure alarms

• Pulse, 4-20 mA, and RS-232 outputs available

• 110 VAC or 220 VAC available

DM-2• Totalizes analog flow inputs

• Displays Rate and Total

• Corrects for fixed pressures

• 4-20 mA or RS-232 outputs available

• 110 VAC or 220 VAC available

Model 405 Totalizer/Ratemeter• Totalizes analog flow inputs

• Displays Rate and Total

• 3 volt lithium battery

• Manufactured by Eaton

Model 400 Totalizer• Totalizes and displays analog flow inputs

• 3 volt lithium battery

• Manufactured by Eaton

MDM-2 Modem• A full-duplex, two wire, 300-2400 baud dial-up modem

• Compatible with CCITT V.22bis / V.22 / V.21, andBell 212A / 103 data communications standards

• 5 to 15 VDC input power

• 75 mA (typical) current

• Operating temperature range of -40˚F to 185˚F (-40˚C to 85˚C)

MDM-2

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Model 400/405

DM2

XMTR

EC-2

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10

ROOTS® INSTRUMENTS

VCC

VTC

Corrector

Volume Correction Computer (VCC)The battery-powered, microprocessor-based ROOTS® volumecorrection computer corrects metered volumes for pressure,temperature, and supercompressibility. Mounted on either astandard Instrument Drive, Wall / Pipe, or integrally to anyaluminum body ROOTS® meter, the VCC is totally userconfigurable. Our patented DataSAFE® data retrieval facilityensures retrieval of stored volume data.

As an integrally mounted corrector, the VCC provides improvedrangeability and greater tamper resistance. The initial cost is alsoreduced by the elimination of instrument drives, mounting fixtures,

and extra cabling.

Key advantages include:

• Modem Communication Capabilities

• Four configurable pulse outputs

• Flow Rate/Direction Determination

Volume Temperature Compensator (VTC)Gas volumes are electronically corrected to the standard Basecondition for temperature with the integrally mounted ROOTS®

volume temperature compensator. The battery-powered,microprocessor-based instrument is available with optional fixedpressure factoring. Like the VCC, the VTC also provides improvedrangeability and greater tamper resistance.

Other standard features include:

• Instantaneous flow rate display to simplify differential testing.

• Directly sensed impeller rotation for precise volume input.

• DataSAFE® data retrieval facility ensuring retrieval of storedvolume data.

Micro CorrectorThe ROOTS® micro corrector volume corrector is a versatile, low

cost line of volume correctors from DMD-Roots. The three basic

models - the Model PT, Model PTZ and Model PTZ + Log - can be

configured eight different ways. The Micro Corrector measures live

pressure and temperature to calculate corrected volume.

As you move up the model line, the Micro Series Corrector has

added capabilities including supercompressibility calculations,

(SGERG 88/AGA 8 Gross Characterization Method) and data/audit

logging functions.

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ROOTS® instruments offer the latest technology in electronic

pressure and temperature correction. As an added benefit,

the ROOTS® volume temperature compensator and ROOTS®

volume correction computer can be mounted integral to most

ROOTS® meters.

7

Model 5 ROOTS® PROVERS

Model 5 Transfer Provers feature an integrated computer

controlled system for verification and testing of rotary, diaphragm,

and turbine gas meters. After the field meter is connected to the

Prover and the test sequence is selected, the remainder of the

operation is “hands-off.” Test sequencing is automatically

controlled by the software settings and the test results are

displayed on the computer screen.

For ease of testing and recording, the Model 5 Prover system will:

• Store up to 40 predetermined field meter test configurations

• Perform and display all calculations at the end of each testand allow for saving to disk

• Provide user-friendly menu prompts

• Run a system self-check prior to each test

• Allow easy access to extensive Help Files

The primary components for all Model 5 Prover systems include

highly accurate ROOTS® master meters as measurement

standards, a personal computer (not included) for operation of

the system software, and a blower system to provide a stable

air flow through the system.

2M/10M

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10M or 2M/10M Prover• 10M or 2M/10M master meters

Capacities:10M: 100 to 10,000 ACFH

(11 to 283 m3/h)

2M: 35 to 2,300 ACFH(1 to 57 m3/h)

• 2M Meter mounted in a“Piggy-Back” configuration

• Suitable for both field and shop use

• Easily transported in a van or truck

8

ROOTS® PROVERS & ACCESSORIES

Mobile 5

RS

Filter

Mobile 5 Prover• 5M master meter

Capacity: 35 to 5,650 ACFH(1 to 160 m3/h)

• Especially suited for testing meters previously inaccessibleto conventional proving systems

• Modular system easily transportable from a vehicle by oneperson in two trips

10M/80M Proving System• 10M and 80M master meters

Capacities:80M: 1,600 to 80,000 ACFH

(45 to 2,265 m3/h)

10M: 100 to 10,000 ACFH(11 to 283 m3/h)

• Skid Mounted Shop System

• Designed for low volume through high capacity meter proving

• Ideal for testing large capacity rotary and turbine-typegas meters

RS Optical ScannerThe optional RS Optical Scanner is used to facilitate meter testing

using an automatic testing sequence. This eliminates the potential

for human error associated with a manual test. The Scanner can

be used on dial indexes and odometers with black and white

graduated marks.

Field CTR Pulser ModuleWhen prover testing a Series B3 CTR Version “pulser ready”

meter, this module can be quickly snapped onto the Lexan® cover

and connected to the prover Field Junction Box. The set-up time

for the Module is much quicker than the RS Optical Scanner and

the human inaccuracies of a manual test are eliminated.

Acoustic FilterWhen testing turbine-type gas meters with a transfer prover, an

Acoustic Filter should be installed between the Field Meter (meter

under test) and the ROOTS® master meter. The Acoustic Filter

reduces or eliminates the resonance phenomena induced by

pulsation from the master meter at most flow rates. An Acoustic

Filter is ideal for shop use with a Model 5 ROOTS® prover.

HN02

304

HN02

305

HN02

308

Field CTR

10M/80M

HN02

306

HN02

307

9