DWYER INSTRUMENTS, INC. P.O. Box 373 Michigan City, IN 46361-9986 Return Service Requested

DWYER INSTRUMENTS, INC. P.O. Box 373 Michigan City, IN 46361-9986 Return Service Requested

mag dom obc/ofc 7/1/04 4:02 PM Page 1

DWYER INSTRUMENTS, INC.

P.O. Box 373

Michigan City, IN 46361-9986

Return Service Requested

domesticIFCIBC spread 7/1/04 9:17 AM Page 1

Address:

Dwyer Instruments, Inc.

102 Indiana Highway 212

P.O. Box 373

Michigan City, IN 46361 U.S.A.

Customer Service

Fast, friendly customer service professionals are available to process and provide assistance with your order – whether it is by phone, fax, e-mail or through our website.

Technical Support

Have an application question? Our technical support professionals are trained to provide you with the answers you need.

Prompt Shipments

After you place your order, Dwyer’s dedicated shipping staff packs and ships your order promptly and completely –within 24 hours on most in-stock items.

Website

Dwyer Instrument’s website delivers the convenience you want. Go to www.dwyer-inst.com for the most complete ordering and product support information at your fingertips – anytime, day or night. Installation and operating manuals are available on products that are easily downloadable to your computer or printer.

Total customer service the way you need it.

e-mail:

General: [email protected]

Literature: [email protected]

Technical: [email protected]

Quotes: [email protected]

Telephone:

(800) 872-9141

(219) 879-8000 website: http://www.dwyer-inst.com

http://www.love-controls.com

http://dwyer-inst.com/retail http://proximitycontrols.com

Fax:

(219) 872-9057

Pressure Conversion Chart

P.S.I.

in/Hg bar mbar in/H

2

O

58

59

60

61

54

55

56

57

50

51

52

53

46

47

48

49

42

43

44

45

38

39

40

41

34

35

36

37

30

31

32

33

26

27

28

29

22

23

24

25

18

19

20

21

14

15

16

17

10

11

12

13

6

7

8

9

2

3

4

5

.1

.2

.4

.6

.8

1.0

90

91

92

93

86

87

88

89

82

83

84

85

78

79

80

81

94

95

96

97

98

99

100

74

75

76

77

70

71

72

73

66

67

68

69

62

63

64

65

mm/H

2

O mm/Hg

1372

1397

1422

1448

1473

1498

1524

1550

1168

1194

1219

1244

1270

1296

1321

1346

964.9

990.9

1016

1042

1067

1092

1118

1143

762.2

787.5

812.8

836.2

863.5

888.9

914.2

939.5

558.8

584.2

609.6

635.0

660.4

685.8

710.8

736.8

355.6

381.0

406.4

431.8

457.2

482.6

508.0

533.4

152.4

177.8

203.2

228.6

254.0

279.4

304.8

330.2

2.534

5.067

10.13

15.20

20.34

25.41

50.81

76.22

101.62

127.0

100.8

102.7

104.6

106.4

108.3

110.2

112.0

113.9

85.90

87.76

89.63

91.49

93.35

95.27

97.13

98.99

70.95

72.86

74.72

76.59

78.45

80.31

82.18

84.04

56.04

57.91

59.77

61.63

63.49

65.36

67.22

69.08

41.09

42.96

44.82

46.69

48.56

50.43

52.26

54.18

26.148

28.016

29.879

31.752

33.616

35.484

37.352

39.22

11.203

13.072

14.940

16.808

18.676

20.544

22.412

24.280

.1863

.3726

.7452

1.118

1.496

1.868

3.736

5.604

7.472

9.335

2184

2210

2265

2260

2286

2311

2336

2362

1981

2006

2032

2057

2082

2108

2134

2159

2387

2413

2438

2464

2489

2514

2540

1778

1803

1828

1854

1880

1905

1930

1956

1575

1600

1626

1651

1676

1702

1727

1752

160.6

162.5

164.4

166.2

168.1

169.9

171.8

173.7

145.7

147.5

149.4

151.2

153.1

155.0

156.9

158.8

130.7

132.6

134.4

136.4

138.2

140.1

141.9

143.8

115.8

117.7

119.5

121.4

123.3

125.1

127.0

128.8

175.5

177.4

179.3

181.2

183.0

184.9

186.8

kg/cm 2

1.949

1.985

2.021

2.057

2.093

2.129

2.165

2.202

1.660

1.696

1.732

1.768

1.804

1.841

1.877

1.913

1.371

1.408

1.444

1.480

1.516

1.552

1.588

1.624

1.083

1.119

1.155

1.191

1.227

1.263

1.299

1.335

.7940

.8301

.8662

.9023

.9384

.9745

1.010

1.047

.5053

.5414

.5774

.6136

.6496

.6857

.7218

.7579

.2165

.2526

.2887

.3248

.3609

.3970

.4331

.4692

.0036

.0072

.0144

.0216

.0289

.0361

.0722

.1083

.1444

.1804

3.104

3.140

3.176

3.212

3.248

3.284

3.320

3.356

2.815

2.851

2.887

2.923

2.959

2.996

3.032

3.068

2.526

2.562

2.598

2.635

2.671

2.707

2.743

2.779

2.238

2.274

2.310

2.346

2.382

2.418

2.454

2.490

3.392

3.429

3.456

3.501

3.537

3.573

3.609

3.968

4.041

4.115

4.188

4.261

4.335

4.408

4.483

3.378

3.453

3.526

3.600

3.673

3.748

3.822

3.895

2.791

2.876

2.940

3.013

3.086

3.160

3.233

3.306

2.205

2.278

2.352

2.425

2.498

2.571

2.645

2.718

1.616

1.690

1.764

1.837

1.910

1.984

2.056

2.132

1.029

1.102

1.176

1.249

1.322

1.396

1.470

1.543

.4408

.5143

.5878

.6613

.7348

.8083

.8818

.9553

.0073

.0146

.0293

.0440

.0588

.0735

.1470

.2205

.2940

.3673

6.320

6.393

6.466

6.450

6.613

6.686

6.760

6.833

5.731

5.805

5.878

5.951

6.024

6.100

6.173

6.246

5.143

5.216

5.290

5.365

5.438

5.511

5.585

5.658

4.556

4.630

4.703

4.776

4.850

4.923

4.996

5.070

6.906

6.981

7.055

7.128

7.201

7.275

7.348

.1370

.1395

.1421

.1146

.1471

.1497

.1522

.1548

.1167

.1192

.1218

.1243

.1268

.1294

.1320

.1345

.0964

.0990

.1015

.1040

.1066

.1091

.1116

.1142

.0761

.0787

.0812

.0837

.0862

.0888

.0913

.0938

.0558

.0584

.0609

.0634

.0660

.0685

.0710

.0736

.0355

.0381

.0406

.0431

.0457

.0482

.0507

.0533

.0152

.0178

.0203

.0228

.0254

.0279

.0304

.0330

.0002

.0005

.0010

.0015

.0020

.0025

.0051

.0076

.0102

.0127

.2182

.2207

.2233

.2258

.2283

.2309

.2334

.2359

.1979

.2004

.2030

.2055

.2080

.2106

.2131

.2157

.1776

.1801

.1826

.1852

.1878

.1903

.1928

.1954

.1573

.1599

.1624

.1649

.1674

.1700

.1725

.1750

.2384

.2410

.2436

.2461

.2486

.2512

.2537

.1344

.1369

.1393

.1418

.1443

.1468

.1493

.1518

.1144

.1169

.1194

.1219

.1244

.1269

.1294

.1319

.0945

.0971

.0996

.1020

.1045

.1070

.1095

.1120

.0747

.0772

.0796

.0821

.0846

.0871

.0896

.0920

.0547

.0572

.0597

.0622

.0647

.0672

.0696

.0722

.0348

.0373

.0398

.0423

.0448

.0473

.0498

.0523

.0149

.0174

.0199

.0224

.0249

.0274

.0299

.0324

.0002

.0005

.0010

.0015

.0020

.0025

.0050

.0075

.0099

.0124

.2140

.2165

.2190

.2215

.2239

.2264

.2289

.2314

.1941

.1966

.1991

.2015

.2040

.2066

.2091

.2115

.1742

.1766

.1791

.1817

.1842

.1866

.1891

.1916

.1543

.1568

.1593

.1618

.1642

.1667

.1692

.1717

.2339

.2364

.2389

.2414

.2439

.2464

.2488

Pa kPa

11445

11694

11942

12190

12438

12693

12941

13190

13438

13686

13934

14182

14431

14679

14927

15182

9453

9708

9956

10204

10452

10701

10949

11197

7467

7715

7963

8212

8460

8708

8956

9204

5474

5723

5972

6221

6470

6719

6964

7219

3484

3733

3981

4231

4479

4728

4977

5226

1493

1742

1990

2239

2488

2737

2986

3235

24.82

49.64

99.28

148.9

199.2

248.9

497.8

746.7

995.6

1244

19409

19657

19905

20153

20402

20657

20905

21153

21401

21650

21898

22146

22394

22642

22890

23139

15430

15679

15927

16175

16423

16672

16920

17168

17416

17664

17912

18168

18416

18664

18912

19160

23387

23642

23890

24138

24387

24635

24883

134.4

136.9

139.3

141.8

144.3

146.8

149.3

151.8

114.5

116.9

119.4

121.9

124.4

126.9

129.4

131.9

94.53

97.08

99.56

102.0

104.5

107.0

109.5

112.0

74.67

77.15

79.63

82.12

84.60

87.08

89.56

92.04

54.74

57.23

59.72

62.21

64.70

67.19

69.64

72.19

34.84

37.33

39.81

42.31

44.79

47.28

49.77

52.26

14.93

17.42

19.90

22.39

24.88

27.37

29.86

32.35

.2482

.4964

.9928

1.489

1.992

2.489

4.978

7.467

9.956

12.44

214.0

216.5

219.0

221.5

223.9

226.4

228.9

231.4

194.1

196.6

199.1

201.5

204.0

206.6

209.1

211.5

174.2

176.6

179.1

181.7

184.2

186.6

189.1

191.6

154.3

156.8

159.3

161.8

164.2

166.7

169.2

171.7

233.9

236.4

238.9

241.4

243.9

246.4

248.8

13.44

13.69

13.93

14.18

14.43

14.68

14.93

15.18

11.44

11.69

11.94

12.19

12.44

12.69

12.94

13.19

9.453

9.708

9.956

10.20

10.45

10.70

10.95

11.20

7.467

7.715

7.963

8.212

8.460

8.708

8.956

9.204

5.474

5.723

5.972

6.221

6.470

6.719

6.964

7.219

3.484

3.733

3.981

4.231

4.479

4.728

4.977

5.226

1.493

1.742

1.990

2.239

2.488

2.737

2.986

3.235

.0248

.0496

.0993

.1489

.1992

.2489

.4978

.7476

.9956

1.244

21.40

21.65

21.90

22.15

22.39

22.64

22.89

23.14

19.41

19.66

19.90

20.15

20.40

20.66

20.90

21.15

17.42

17.66

17.91

18.17

18.42

18.66

18.91

19.16

15.43

15.68

15.93

16.18

16.42

16.67

16.92

17.17

23.39

23.64

23.89

24.14

24.39

24.64

24.88

P.S.I.

6.6

6.7

6.8

6.9

7.0

7.1

7.2

7.3

5.8

5.9

6.0

6.1

6.2

6.3

6.4

6.5

5.0

5.1

5.2

5.3

5.4

5.5

5.6

5.7

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

3.4

3.5

3.6

3.7

3.8

3.9

4.0

4.1

2.6

2.7

2.8

2.9

3.0

3.1

3.2

3.3

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

18.0

19.0

20.0

21.0

22.0

23.0

24.0

25.0

9.8

10.0

11.0

12.0

13.0

14.0

14.7

15.0

16.0

17.0

7.4

7.5

7.6

7.8

8.0

8.2

8.4

8.6

8.8

9.0

9.2

9.4

9.6

bar

.4482

.4550

.4619

.4688

.4757

.4826

.4895

.4964

.3930

.3999

.4068

.4137

.4206

.4275

.4344

.4413

.3378

.3447

.3516

.3585

.3654

.3723

.3792

.3861

.2827

.2896

.2965

.3034

.3103

.3172

.3240

.3310

.2275

.2344

.2413

.2482

.2551

.2620

.2689

.2758

.1724

.1793

.1862

.1930

.1999

.2068

.2137

.2206

.0689

.0758

.0827

.0896

.0965

.1034

.1103

.1172

.1241

.1310

.1379

.1448

.1517

.1586

.1655

1.241

1.310

1.379

1.448

1.517

1.586

1.655

1.724

.7584

.8274

.8963

.9652

1.014

1.034

1.103

1.172

.5929

.6067

.6205

.6343

.6481

.6619

.6757

.6895

.5033

.5102

.5171

.5240

.5378

.5516

.5654

.5792

kg/cm

2

.4570

.4640

.4710

.4781

.4851

.4921

.4992

.5062

.4007

.4078

.4148

.4218

.4289

.4359

.4429

.4500

.3445

.3515

.3586

.3656

.3726

.3797

.3867

.3937

.2883

.2953

.3023

.3094

.3164

.3234

.3304

.3375

.2320

.2390

.2461

.2531

.2601

.2672

.2742

.2812

.1758

.1828

.1898

.1968

.2039

.2109

.2180

.2250

.0703

.0773

.0844

.0914

.0984

.1055

.1125

.1195

.1266

.1336

.1406

.1476

.1547

.1617

.1687

1.265

1.336

1.406

1.476

1.547

1.617

1.687

1.758

.7734

.8437

.9140

.9843

1.033

1.055

1.125

1.195

.6046

.6187

.6328

.6468

.6609

.6749

.6890

.7031

.5132

.5203

.5273

.5343

.5484

.5625

.5765

.5906

in/Hg mm/H

2

O

4570

4640

4711

4781

4851

4922

4992

5062

4008

4078

4148

4218

4289

4359

4429

4500

3445

3515

3586

3656

3726

3797

3876

3973

2883

2953

3023

3094

2164

3234

3304

3375

2320

2390

2461

2531

2601

2672

2742

2812

1758

1828

1898

1969

2039

2109

2180

2250

1195

1266

1336

1406

1476

1547

1617

1687

703.1

773.4

843.7

914.0

984.3

1055

1125

7734

8437

9140

9843

10340

10550

11250

11950

12660

13360

14060

14770

15470

16170

16870

17580

6047

6187

6328

6468

6609

6750

6890

7031

5132

5203

5273

5343

5484

5625

5765

5906

mm/Hg

336.1

341.3

346.5

351.7

356.8

362.0

367.2

372.3

294.8

299.9

305.1

310.3

315.5

320.6

325.8

331.0

253.4

258.6

263.7

268.9

274.1

279.3

284.4

289.6

212.0

217.2

222.4

227.5

232.7

237.9

243.1

248.2

170.7

175.8

181.0

186.2

191.3

196.5

201.7

206.9

129.3

134.5

139.6

144.8

150.0

155.1

160.3

165.5

51.75

56.89

62.06

67.23

72.40

77.57

82.74

87.92

93.09

98.26

103.4

108.6

113.8

118.9

124.1

930.9

982.6

1034

1086

1138

1189

1241

1293

568.9

620.6

672.3

724.0

760.2

775.7

827.4

879.1

444.7

455.1

465.4

475.8

486.1

496.5

506.8

517.1

377.5

382.7

387.9

393.0

403.4

413.7

424.1

434.4

13.23

13.44

13.64

13.84

14.05

14.25

14.46

14.66

11.60

11.81

12.01

12.22

12.42

12.62

12.83

13.03

9.976

10.18

10.38

10.59

10.79

10.99

11.20

11.40

8.348

8.551

8.775

8.958

9.162

9.366

9.569

9.773

6.719

6.922

7.126

7.330

7.535

7.737

7.940

8.144

5.090

5.294

5.497

5.701

5.904

6.108

6.312

6.515

2.036

2.240

2.443

2.647

2.850

3.054

3.258

3.461

3.665

3.686

4.072

4.276

4.479

4.683

4.886

36.65

36.68

40.72

42.76

44.79

46.83

48.86

50.90

22.40

24.43

26.47

28.50

29.93

30.54

32.58

34.61

17.51

17.92

18.32

18.73

19.14

19.54

19.95

20.36

14.86

15.07

15.27

15.47

15.88

16.29

16.70

17.10

in/H

2

O

174.4

177.2

179.9

182.7

185.5

188.2

191.0

193.8

152.2

155.0

157.8

160.5

163.3

166.1

168.8

171.6

130.1

132.9

135.6

138.4

141.2

143.9

146.7

149.5

108.0

110.7

113.5

116.3

119.0

121.8

124.6

127.3

85.81

88.58

91.35

94.11

96.88

99.65

102.4

105.2

63.67

66.43

69.20

71.97

74.74

77.51

80.27

83.04

27.71

30.45

33.22

35.98

38.75

41.52

44.29

47.06

49.82

52.59

55.36

58.13

60.90

442.9

470.6

498.2

525.9

553.6

581.3

609.0

636.7

664.3

692.0

271.3

276.8

304.5

332.2

359.8

387.5

406.9

415.2

227.0

232.5

238.0

243.6

249.1

254.7

260.2

265.7

196.5

199.3

202.1

204.8

207.6

210.4

215.9

221.4

mbar Pa

39300

39990

40680

41370

42060

42750

43440

44130

44820

45500

46190

46880

47570

48260

48950

49640

28270

28960

29650

30338

31030

31720

32400

33100

33780

34470

35160

35850

36540

37230

37920

38610

17240

17930

18620

19300

19990

20680

21370

22060

22750

23440

24130

24820

25510

26200

26890

27580

6895

7584

8274

8963

9652

10340

11030

11720

12410

13100

13790

14480

15170

15860

16550

75840

82740

98630

96520

101400

103400

110300

117200

124100

131000

137900

144800

151700

158600

165500

172400

50330

51020

51710

52400

53780

55160

56540

57920

59290

60670

62050

63430

64810

66190

67570

68950

448.2

455.0

461.9

468.8

475.7

482.6

489.5

496.4

393.0

399.9

406.8

413.7

420.6

427.5

434.4

441.3

337.8

344.7

351.6

358.5

365.4

372.3

379.2

386.1

282.7

289.6

296.5

303.4

310.3

317.2

324.0

331.0

227.5

234.4

241.3

248.2

255.1

262.0

268.9

275.8

172.4

179.3

186.2

193.0

199.9

206.8

213.7

220.6

68.95

75.84

82.74

89.63

96.52

103.4

110.3

117.2

124.1

131.0

137.9

144.8

151.7

158.6

165.5

1241

1310

1379

1448

1517

1586

1655

1724

758.4

827.4

896.3

965.2

1014

1034

1103

1172

592.9

606.7

620.5

634.3

648.1

661.9

675.7

689.5

503.3

510.2

517.1

524.0

537.8

551.6

565.4

579.2

kPa

44.82

45.50

46.19

46.88

47.57

48.26

48.95

49.64

39.30

39.99

40.68

41.37

42.06

42.75

43.44

44.13

33.78

34.47

35.16

35.85

36.54

37.23

37.92

38.61

28.27

28.96

29.65

30.34

31.03

31.72

32.40

33.10

22.75

23.44

24.13

24.82

25.51

26.20

26.89

27.58

17.24

17.93

18.62

19.30

19.99

20.68

21.37

22.06

6.895

7.584

8.274

8.963

9.652

10.34

11.03

11.72

12.41

13.10

13.79

14.48

15.17

15.86

16.55

124.1

131.0

137.9

144.8

151.7

158.6

165.5

172.4

75.84

82.74

89.63

96.52

101.4

103.4

110.3

117.2

59.29

60.67

62.05

63.43

64.81

66.19

67.57

68.95

50.33

51.02

51.71

52.40

53.78

55.16

56.54

57.92

CONVERSION

FACTORS

NOTE:

CONVERSION FACTORS

ROUNDED

P.S.I. x 27.71 = in. H

2

O

P.S.I. x 2.036 = in. Hg

P.S.I. x 703.1 = mm/H

2

O

P.S.I. x 51.75 = mm/Hg

P.S.I. x .0703 = kg/cm 2

P.S.I. x .0689 = bar

P.S.I. x 68.95 = mbar

P.S.I. x 6895 = Pa

P.S.I. x 6.895 = kPa

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055 16

intro page 7/1/04 9:24 AM Page 1

Dwyer Instruments has and continues to be the leading manufacturer and innovator in specialty gage application and design. Most notably, the Dwyer

Magnehelic

®

remains the hallmark of the industry for low pressure indication and measurement, and has been industry proven through its robust design and field performance.

Dwyer is proud to compliment this versatile instrument with the new Magnehelic

®

Accessory Guide. This guide will assist with selecting the proper features, options and accessories required in your unique applications that utilize the Magnehelic

®

gage. From air flow scales to the new flush mounting kit for panels to popular static pressure sensors, this guide includes the complete offering of

Magnehelic

®

options and accessories.

We have always felt that the best does not have to cost you the most, and encourage you, the customer, to check out our value and what we believe to be the most competitively priced products on the market.

Sincerely,

Dwyer Instruments Team

Index

Page

Series 2000 Magnehelic ® Differential Pressure Gage . . .1-2

Magnehelic ® Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Magnehelic ® Chrome/Steel Bezels . . . . . . . . . . . . . . . . . . . .4

Portable Magnehelic ® Pressure-Air Velocity Gages . . . . . .4

Mounting Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Other Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Flush-Mount Kit for Magnehelics ® . . . . . . . . . . . . . . . . . . . .6

Flush-Mount Space Pressure Sensor . . . . . . . . . . . . . . . . . .6

Static Pressure Accessories . . . . . . . . . . . . . . . . . . . . . . . . .7

Fittings-Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Valves-Connectors-Snubbers . . . . . . . . . . . . . . . . . . . . . . . .8

Optional Accessory Kits for Air Filters . . . . . . . . . . . . . . . . .8

Page

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Gage Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Related Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Series 605 Magnehelic ® with 4-20 mA

Transmitter Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Pitot Tubes for Sensing Air Velocity . . . . . . . . . . . . . . . . . .12

Series 4000 Capsuhelic ® Differential

Pressure Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-14

Series DH Digihelic ® Differential Pressure Controller . . . .15

Pressure Conversion Chart . . . . . . . . . . . . . . . . . . . . . . . . .16

Series 2000

Magnehelic

®

Differential Pressure Gages

Indicate Positive, Negative or Differential, Accurate within 2%

Ø4-1/8 [104.78] BOLT

CIRCLE FOR PANEL MOUNTING

120

°

APART

1/2

[12.70]

1/8 NPT HIGH

PRESSURE

1/8 NPT HIGH

PRESSURE

1-3/4

[44.45]

1-1/4

[31.75]

1/8 NPT LOW

PRESSURE

1

Patent Nos.4,030,365 and 5,012,678

Standard Magnehelic ® Pressure Gage has a large, easy-to-read 4" dial.

Selec t the Dw yer Magnehelic ® gage

for high accuracy — guaranteed within 2% of full scale — and for the wide choice of models available to suit your needs precisely. Using Dw yer's simple, fric tionless Magnehelic ® movement, it quickly indicates low air or non-corrosive gas pressures — either positive, negative (vacuum) or differential. The design resists shock, vibration and over-pressures. No manometer fluid to evaporate, freeze or cause toxic or leveling problems. It's inexpensive, too.

The Magnehelic ® is the industr y standard to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems and pressures in fluid amplifier or fluidic systems. It also checks gas-air ratio controls and automatic valves, and monitors blood and respirator y pressures in medical care equipment.

NOTE: May be used with Hydrogen where pressures are less than 35 psi.

Quality Design and Construction Features

Bezel

provides flange for flush mounting in panel.

11/16

[17.46]

1/8 LOW

PRESSURE

7/16

[11.11]

Ø4-3/4

[120.65]

1-11/16

[42.86]

1/2

[12.70]

Dimensions,Standard Series 2000 Magnehelic ® Pressure Gages.

SPECIFICATIONS

Service:

Air and non-combustible, compatible gases. (Natural Gas option available.)

Wetted Materials:

Aluminum, silicone, acrylic, polycarbonate, high carbon steel, low carbon steel, brass, paper, acrylic paint, enamel paint, alkyd coating, nickel plate, zinc plate, Helsel ® FC, 300 series stainless steel, Teflon ® , Loctite ® AV sealant, commercial black rubber, neoprene, samarium cobalt, nickel alloy steel, beryllium copper.

Housing:

Die cast aluminum case and bezel, with acrylic cover. Exterior finish is coated gray to withstand 168 hour salt spray corrosion test.

Accuracy:

±2% of full scale (±3% on - 0, -100PA, -125PA, 10MM and ±4% on -00,

-60PA, -6MM ranges), throughout range at 70°F (21.1°C).

Pressure Limits:

-20˝ Hg. to 15 psig. (-0.677 bar to 1.034 bar); MP option: 35 psig

(2.41 bar), HP option: 80 psig (5.52 bar).

For applications with high cycle rate within gage total pressure rating, next higher rating is recommended.

Overpressure:

Relief plug opens at approximately 25 psig (1.72 kPa), standard gages only.

Temperature Limits:

20 to 140°F (-6.67 to 60°C).

Size:

4˝ (101.6 mm) Diameter dial face.

Mounting Orientation:

Diaphragm in vertical position. Consult factory for other position orientations.

Process Connections:

1/8˝ female NPT duplicate high and low pressure taps - one pair side and one pair back.

Weight:

1 lb 2 oz (510 g), MP & HP 2 lb 2 oz (963 g).

Standard Accessories:

Two 1/8˝ NPT plugs for duplicate pressure taps, two 1/8˝ pipe thread to rubber tubing adapters and three flush mounting adapters with screws.

(Mounting and snap ring retainer substituted for 3 adapters in MP & HP gage accessories.)

O-ring seal

for cover assures pressure integrity of case.

Clear plastic face

is highly resistant to breakage.

Provides undistorted viewing of pointer and scale.

Precision litho-printed scale

is accurate and easy to read.

Red tipped pointer

of heat treated aluminum tubing is easy to see. It is rigidly mounted on the helix shaft.

Pointer stops

of molded rubber prevent pointer over-travel without damage.

“Wishbone” assembly

provides mounting for helix, helix bearings and pointer shaft.

Jeweled bearings

are shock-resistant mounted; provide virtually friction-free motion for helix.

Motion damped with high viscosity silicone fluid.

Zero adjustment screw

is conveniently located in the plastic cover, and is accessible without removing cover. O-ring seal provides pressure tightness.

Blowout plug

of silicone rubber protects against overpressure on 15 psig rated models. Opens at approximately 25 psig.

Die cast aluminum case

is precision made and iridite-dipped to withstand 168 hour salt spray corrosion test. Exterior finished in baked dark gray hammerloid. One case size is used for all standard pressure options, and for both surface and flush mounting.

Silicone rubber diaphragm

with integrally molded O-ring is supported by front and rear plates. It is locked and sealed in position with a sealing plate and retaining ring. Diaphragm motion is restricted to prevent damage due to overpressures.

Calibrated range spring

is flat spring steel. Small amplitude of motion assures consistency and long life. It reacts to pressure on diaphragm. Live length adjustable for calibration.

Samarium Cobalt magnet

mounted at one end of range spring rotates helix without mechanical linkages.

Helix

is precision made from an alloy of high magnetic permeability. Mounted in jeweled bearings, it turns freely, following the magnetic field to move the pointer across the scale.

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055

Series 2000 Magnehelic

®

- Models & Ranges

STOCKED MODELS

in bold

Model

Number

2015

2020

2025

2030

2040

2050

2060

2080

2100

2150

2000-00N

†••

2000-00

†••

2000-0

†•

2001

2002

2003

2004

2005

2006

2008

2010

2300-0

†•

2301

2302

2304

2310

2320

2330

Range

Inches of Water

.05-0-.2

0-.25

0-.50

0-1.0

0-2.0

0-3.0

0-4.0

0-5.0

0-6.0

0-8.0

0-10

0-15

0-20

0-25

0-30

0-40

0-50

0-60

0-80

0-100

0-150

.25-0-.25

.5-0-.5

1-0-1

2-0-2

5-0-5

10-0-10

15-0-15

Model

Number

Range

PSI

2201

2202

2203

2204

2205

2210*

2215*

2220*

2230**

*MP option standard

**HP option standard

0-1

0-2

0-3

0-4

0-5

0-10

0-15

0-20

0-30

Model

Number

2000-5HG

2000-6HG

2000-10HG

2000-15HG*

2000-20HG*

2000-25HG*

2000-30HG*

2000-40HG*

2000-50HG**

2000-60HG**

Range,

Inches

HG

0-5

0-6

0-10

0-15

0-20

0-25

0-30

0-40

0-50

0-60

Model

Number

*MP option standard

**HP option standard

Range,

MM

HG

2000-4MMHG

2000-10MMHG

0-4

0-10

These ranges calibrated for vertical scale position.

• Accuracy +/-3%.

• • Accuracy +/-4%.

Dual Scale Air Velocity Units

Model

Number

Range in W.C.

Velocity, F.P.M.

2000-00AV

†••

2000-0AV

†•

2001AV

2002AV

2010AV

0-.25/300-2000

0-.50/500-2800

0-1.0/500-4000

0-2.0/1000-5600

0-10/2000-12500

For use with Pitot tube.

Model

Number

Range

MM of Water

2000-6MM

• •

2000-8MM

2000-10MM

2000-15MM

2000-20MM

2000-25MM

2000-30MM

2000-40MM

2000-50MM

2000-60MM

2000-80MM

2000-100MM

2000-150MM

2000-200MM

2000-250MM

2000-300MM

2000-500MM

2000-1000MM

2300-20MM

2300-30MM

Model

Number

2000-20MBAR

2000-25MBAR

2000-50MBAR

2000-60MBAR

2000-500MBAR*

2300-20MBAR

*MP option standard

0-20

0-25

0-50

0-60

0-500

10-0-10

0-6

0-8

0-10

0-15

0-20

0-25

0-30

0-40

0-50

0-60

0-80

0-100

0-150

0-200

0-250

0-300

0-500

0-1000

10-0-10

15-0-15

Range, mBar

Model

Number

2000-1CM

2000-2CM

2000-3CM

2000-4CM

2000-5CM

2000-6CM

2000-8CM

2000-10CM

2000-15CM

2000-20CM

2000-25CM

2000-30CM

2000-40CM

2000-50CM

2000-60CM

2000-80CM

2000-100CM

2000-150CM

2000-200CM

2000-250CM

2000-300CM

2300-2CM

2300-4CM

2300-10CM

2300-20CM

2300-30CM

Range,

CM of

Water

0-10

0-15

0-20

0-25

0-30

0-40

0-50

0-60

0-1

0-2

0-3

0-4

0-5

0-6

0-8

0-80

0-100

0-150

0-200

0-250

0-300

1-0-1

2-0-2

5-0-5

10-0-10

15-0-15

Dual Scale English/Metric Models

Model

Number

Range,

In. W.C.

2000-OD

†•

2001D

2002D

2003D

2004D

2006D

2008D

2010D

0-0.5

0-1.0

0-2.0

0-3.0

0-4.0

0-6.0

0-8.0

0-10

Model

Number

2000-60PA

†••

2000-100PA

†•

2000-125PA

†•

2000-250PA

2000-300PA

2000-500PA

2000-750PA

2300-60PA

†••

2300-120PA

†•

2300-250PA

2300-500PA

Model

Number

2000-1KPA

2000-1.5KPA

2000-2KPA

2000-3KPA

2000-4KPA

2000-5KPA

2000-8KPA

2000-10KPA

2000-15KPA

2000-20KPA

2000-25KPA

2000-30KPA

2300-1KPA

2300-3KPA

Range,

Pa or kPa

0-125PA

0-250PA

0-500PA

0-700PA

0-1.0KPA

0-1.5KPA

0-2.0KPA

0-2.5KPA

Range,

Pascals

0-60

0-100

0-125

0-250

0-300

0-500

0-750

30-0-30

60-0-60

125-0-125

250-0-250

Range,

Kilopascals

0-1

0-1.5

0-2

0-3

0-4

0-5

0-8

0-10

0-15

0-20

0-25

0-30

.5-0-.5

1.5-0-1.5

OPTIONS

(add below suffixes to model number, example: 2001-SB)

-ASF, Adjustable Signal Flag

-SP, Set Point Indicator

-AT, Aluminum Tag

-ST, Stainless Steel Tag

-BUNA, BUNA-N Elastomers

-VIT, Viton ® Elastomers

-HP, High Pressure Option, rated for internal pressures up to 80 psig

-MP, Medium Pressure Option, rated for internal pressures up to 35 psig

-LT, Low Temperature, temperatures to -20°F (-29°C)

-NIST, NIST Certificate of Calibration

-CB, Chrome Bezel

-SB, 304 Stainless Steel Bezel

-SF, Silicone Free

-R, Red Scale Overlay

-Y, Yellow Scale Overlay

-G, Green Scale Overlay

-M, Mirror Scale Overlay

Natural Gas Model

-BUNA-IC, BUNA-N Elastomers & Impregnated Case

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055 2

Magnehelic

®

Options

AVAILABLE OPTIONS

LED Setpoint Indicator

Bright red LED on right of scale shows when setpoint is reached. Field adjustable from gage face, unit operates on 12-24 VDC. Setpoint indicator option comes with medium pressure (MP) bezel.

-SP

Adjustable Signal Flag

Integral with plastic gage cover. Available for most models except those with medium or high pressure construction.

Can be ordered with gage or separate.

-ASF

Transparent Overlays

Furnished in red, yellow, or green to highlight and emphasize critical pressures.

-R (Red)

-Y (Yellow)

-G (Green)

Mirrored Scale Overlay

A Mirrored Scale Overlay is also available to assist in reducing parallax error.

-M

MODELS FOR HIGH STATE PRESSURE APPLICATIONS

Medium Pressure Option:

for pressures to 35 psig.

-MP

High Pressure Option:

for pressures to 80 psig.

-HP

Installation is similar to standard gages except that a 4-13/16˝ hole is needed for flush mounting. The medium pressure construction is rated for internal pressures up to 35 psig and the high pressure up to 80 psig. Available for all models. Because of larger case, the medium pressure and high pressure models will not fit in a portable case size. Installation of the A-321 safety relief valve on standard Magnehelic ® gages often provides adequate protection against infrequent overpressure.

VELOCITY AND VOLUMETRIC FLOW UNITS

PRIVATE LABELED GAGES

Scales are available on the Magnehelic ® that read in velocity units (FPM, m/s) or volumetric flow units (SCFM, m 3 /s, m 3 /h).

Stocked velocity units with dual range scales in inches w.c. and feet per minute are shown on page 2. For other ranges contact the factory.

When ordering volumetric flow scales please specify the maximum flow rate and its corresponding pressure. Example: 0.5˝ w.c. = 16,000 CFM.

Special scales with company logo or information can be crafted for the Magnehelic ® . Please consult the factory for pricing.

3

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055

Series 2000

NEW! Magnehelic

®

Chrome/Steel Bezels

Stainless Steel Bezel Option:

304 Stainless Steel Electro polished Ra 16 finished bezel for the Magnehelic ® is now available.This stainless steel bezel is ideal for Magnehelics ® mounted in clean rooms, pharmaceutical plants,medical and bio-medical facilities and in many locations where a chemical washdown occurs.

Chrome Bezel Option:

A Chrome Plated Aluminum Bezel is now available on the Magnehelic ® gage for an aesthetically pleasing finish when mounting on metal surfaces such as control panels.

To Order Add Suffix -SB

To Order Add Suffix -CB

Portable Magnehelic

®

Pressure-Air Velocity Gages

POPULAR MODELS

Model

2000-00AV-Port†

2000-0AV-Port†

2001AV-Port

2002AV-Port

2010AV-Port

†2000-00 - 4% accuracy; 2000-0 - 3% accuracy

Pressure,

Inches w.c.

0-.25

0-.50

0-1.0

0-2.0

0-10

Velocity,

FPM

300-2000

500-2800

500-4000

1000-5600

2000-12,500

Use with Pitot tube for air velocity measurement or without for pressure measurement. Easy and quick to use, Por table Magnehelic ® Gages with dual scale are less sensitive to level than liquid gages, yet offer accuracy to ±2% over the full scale. †Air Velocity Scale provides direct reading for standard air without conversions. They are handy to use on a ladder or in confined locations encountered in field testing. Dwyer magnetic linkage provides exceptionally responsive, consistently accurate indication of air velocity, positive, negative or differential pressures in air and non-corrosive gases. Pointer movement is iner tia-free and drift-free. Highly resistant to shock and vibration.

Portable Magnehelic

®

Unit Includes:

Choice of 5 models — Scales from 0-.25" w.c., 300-2000 FPM. to 0-10" w.c., 2000-12,500 FPM. Maximum total pressure rating 15 psig. Ambient temperature range 30 to 140°F. Aluminum stand iridite-dipped; gage has baked gray hammerloid finish. Furnished in gray plastic carr ying case.

Connections include 1/8" NPT high and low pressure taps, duplicatedone pair side and one pair back. Two 1/8" NPT plugs included. Rubber

Tubing and Adapters — One 9 ft. length of 3/16" I.D. tubing, terminal tube and two pipe thread to tubing adapters

.

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055 4

Mounting Accessories

M O U N T I N G

. A single case size is used for most models of Magnehelic

® gages. They can be flush or sur face mounted with standard hardware supplied. Complete mounting and connection fittings plus instructions are furnished with each instrument. A 4-9/16˝ hole is required for flush panel mounting.

Flush mounting is easily accomplished with the new A-300 Flush Mounting bracket. This bracket provides a solution to quickly and conveniently flush mount the Magnehelic

®

. The A-300 is ideal for mounting the Magnehelic

® on control panel doors.

The A-368 is a simple bracket for quickly sur face mounting the Magnehelic

® gage. After securing the Magnehelic

® to the A-368 bracket, mount the bracket on any flat sur face.

The A-369 allows the Magnehelic

® to be easily carried to locations where pressure readings need to be taken. The A-369 can stand on its own or hang on a nail or hook.

Flush

Sur face

Other Mounting Options

Por table

A-300

A-300

, Flush Mounting Bracket

A-368

A-368

, Surface Mounting Plate, aluminum, for Magnehelic ® gage

A-369

A-369

, Stand-Hang Bracket, aluminum, for

Magnehelic ® gage

Pipe

A-610,

Pipe Mounting Kit for installing on 1-1/4˝ to 2˝ horizontal or vertical pipe

A-299

A-371

A-299

, Mounting Bracket, flush mount for Magnehelic ®

Gage. Bracket is then surface mounted. Steel with gray hammertone epoxy finish

A-371

, Surface Mounting Bracket. Use with medium pressure (-MP) or high pressure (-HP) models only

5

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055

NEW! Flush-Mount Kit for Magnehelics

®

Ideal for Clean Rooms & Control Panels

A-464

Pressure

Reference Port

Advantages and Specifications of the A-464 Kit

• Provides an innovative solution for flush mounting Magnehelic ® gages.

• Space pressure reference integral to mounting plate.

• Mounting applications include: Sheetrock walls, control panel enclosures and air handling equipment.

• Eliminates the need for special hole saws.

• Creates a professional look.

• Saves installation time and money.

• Outside dimensions: 6-1/4 x 6-1/4 x 1/4 inches (15.9 x 15.9 x 0.6 cm).

• Material: White ABS plastic.

The A-464

mounting kit provides a flush mounting solution for Magnehelic® gage installations for applications such as clean rooms and mechanical equipment rooms. The A-464 can also be used as an alternative

STOCKED MODEL

A-464

means to flush mount Magnehelic® gages on control panel enclosures.

The space pressure reference por t eliminates the need to drill separate holes and run tubing long distances. Utilizing the A-464 for Magnehelic® installations reduces installation time while also producing an aesthetically pleasing result.

A-464 Back View

Shown with A-465

NEW! Flush-Mount Space Pressure Sensor

Ideal for Clean Rooms

A-465

Advantages and Specifications of the A-465 Kit

• The professional way to sense space pressure.

• Mounting options include: Sheetrock walls, ceiling tiles or single gang electrical boxes.

• Non block reference opening prevents plugging.

• Saves time and money.

• Outside dimensions: 2-3/4 x 4-1/2 x 1/4 inches (6.9 x 11.4 x 0.6 cm).

• Attractive design blends in with building decor.

• Materials: White ABS plastic.

The A-465

Space Pressure Sensor Kit provides a clean solution for sensing space pressure. Typical applications include: sensing the pressure in clean rooms, laboratories and building lobbies. The kink resistant tubing provided in the kit is connec ted to the tubing running to a pressure transducer, Magnehelic® Gage, VAV unit or any other types of pressure sensing devices. The sensor can be mounted on sheetrock walls, single gang electrical boxes or on ceiling tiles. The block free pressure reference opening along with the kink resistant tubing ensure accurate readings at all times.

STOCKED MODEL

A-465

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055 6

Static Pressure Accessories

Types of Static Pressure Sensing Devices

Sensing Static Pressure

For most industrial and scientific applications, the only air measurements needed are those of static pressure, total pressure and temperature. With these, air velocity and volume can be quickly calculated.

To sense static pressure, six types of devices are commonly used. These are connected with tubing to a pressure indicating instrument.

Fig. 1-A

shows a simple thru-wall static pressure tap. This is a sharp, burr-free opening through a duct wall provided with a tubing connection of some sor t on the outside. The axis of the tap or opening must be perpendicular to the direc tion of flow. This t ype of tap or sensor is used where air flow is relatively slow, smooth and without turbulence. If turbulence exists, impingement, aspiration or unequal distribution of moving air at the opening can reduce the accuracy of readings significantly.

Fig. 1-B

shows the Dw yer No. A-308 Static Pressure Fitting. Designed for simplified installation, it is easy to install, inexpensive, and provides accurate static pressure sensing in smooth air at velocities up to 1500 FPM.

A-307

, Static Pressure Fitting, for 1 ⁄

4

" metal tubing connection

A-307-SS

, same as above in Stainless Steel

A-308

, Static Pressure Fitting, for 3 ⁄

16

" and 1 ⁄

8

" I.D. plastic or rubber tubing

A-414,

SS Clean Room Pressure Sensor

Fig. 1

A-308

A-414

Fig. 1-C

shows a simple tube through the wall. Limitations of this type are similar to wall type Fig. 1-A.

A-304

, Duct Connector

A-304

Fig. 1-D

shows a static pressure tip which is ideal for applications such as sensing the static pressure drop across industrial air filters and refrigerant coils.

Here the probability of air turbulence requires that the pressure sensing openings be located away from the duct walls to minimize impingement and aspiration and thus insure accurate readings. For a permanent installation of this type, the Dwyer No. A-301 or A-302 Static Pressure Tip is used. It senses static pressure through radially-drilled holes near the tip and can be used in air flow velocities up to 12,000 FPM. The angled tips shown have 4˝ inser tion depth. Each has four radially drilled .040˝ sensing holes. All except Model A-303 mount in 3/8˝ hole in duct. For por table use, a magnet holds No. A-303 in place.

A-301

, Static Pressure Tip, for

1

4

" metal tubing connection

A-301-A

, Static Pressure Tip, same as A-301 with 6˝ insertion depth

A-301-B

, Static Pressure Tip, same as A-301 with 8˝ insertion depth

A-301-C

, Static Pressure Tip, same as A-301 with 12˝ insertion depth

A-301-SS

, same as A-301 in Stainless Steel

A-302

, Static Pressure Tip, for 3 ⁄

16

" and 1 ⁄

8

" I.D. plastic or rubber tubing

A-302-A

, Static Pressure Tip, same as A-302 with 6˝ insertion depth

A-303

, Portable Static Pressure Tip, for 3 ⁄

16

" I.D. rubber or plastic tubing with 4˝ insertion

A-345

, Flange for mounting A-301, A-302, A-307, A-308 or 1 ⁄

8

" dia. Pitot

Tubes with compression fitting when interior of duct is not accessible.

Aluminum, with gasket and sheet metal screws

Fig. 1-E

shows a Dwyer No. A-305 low resistance Static Pressure Tip. It is designed for use in dust-laden air and for rapid response applications. It is recommended where a ver y low actuation pressure is required for a pressure switch or indicating gage — or where response time is critical.

A-305

, Static Pressure Tip, low resistance application, furnished with two (2) hex jam nuts and two (2) mounting washers for duct mounting and with 1 ⁄

8

" NPT pipe thread for pressure connection

A-305-SS

, same as A-305 in Stainless Steel

A-301

A-345

A-302

A-305

A-303

A-307

7

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055

Fittings & Connectors

Fittings - Adapters

A-324

A-332

A-337

A-326

A-333

A-339

A-330

A-334

A-340

A-323

, Elbow Compression Fitting, brass 1 ⁄

8

" NPT to 1 ⁄

4

" metal tubing

A-324

, Compression Fitting, brass 1 ⁄

8

" NPT to 1 ⁄

4

" metal tubing

A-326

, Compression Fitting, brass 1 ⁄

8

" NPT to 3 ⁄

8

" tubing

A-330

, 1 ⁄

8

" Pipe Plug, socket hex, plated steel

A-332

, Bushing, brass, 1 ⁄

8

" to 1 ⁄

4

" NPT

A-333

, Bushing, brass, 1 ⁄

8

" to 1 ⁄

2

" NPT

A-334

, Close Nipple, brass, 1 ⁄

8

" NPT

A-336

, 90° Street L, brass, 1 ⁄

8

" NPT

A-337

, Coupling, brass, 1 ⁄

8

" NPT

A-339

, Adapter, brass, 1 ⁄

8

" NPT to 3 ⁄

16

" rubber and 1 ⁄

8

" I.D. plastic tubing

A-340

, Adapter, nylon, 1 ⁄

8

" NPT to 3 ⁄

16

" I.D. rubber or 1 ⁄

4

" plastic tubing

A-342

, “T” Assembly, plastic, for 3 ⁄

16

" I.D. rubber or 1 ⁄

4

" plastic tubing

A-343

, “T” Assembly, plastic, for 3 ⁄

16

" plastic tubing

A-343-1

, “T” Assembly, plastic, for 1 ⁄

8

" I.D. plastic tubing

A-346

, “T” Compression Fitting, brass, 1 ⁄

4

" metal tubing

A-349

, Reducer, brass, 1 ⁄

4

" female NPT to 1 ⁄

8

" male NPT

A-349

A-342

A-346

Valves - Connectors - Snubbers

A-310A A-310B

A-312

A-355

A-311

A-310A,

3-Way Vent Valve, plastic, 1 ⁄

8

" NPT to 1 ⁄

4

" metal tubing. Positions are:

(1) Line: Gage connected to pressure source. (2) Off: Both gage and connection to pressure source closed. (3) Vent: Gage vented to atmosphere and connection to pressure source closed. 80 psi rating. Replaces former model A310 (brass).

In applications where pressure is continuous and the Magnehelic ® gage is connected by metal or plastic tubing which cannot be easily removed, we suggest using Dwyer A-310A vent valves to connect gage. Pressure can then be removed to check or re-zero the gage.

A-310B,

same as A-310A but with 10 PSI rating

A-311,

Shut Off Valve, brass, 1 ⁄

8

" NPT to 1 ⁄

8

" NPT

A-312,

Shut Off Valve, brass, 1 ⁄

8

" NPT to 1 ⁄

4

" metal tubing

A-355,

Porting Valve, acrylic plastic, 1 ⁄

8

" NPT inserts. Used for convenient indication of pressure at two points with a single gage

A-365,

Dual Porting Valve, acrylic plastic, 1 ⁄

8

" NPT fittings. For monitoring three pressures, two at a time, with one gage

Series PS Pressure Snubber

Designed to protect pressure instrumentation by dampening surges and pulsations and assuring steady average pressure readings

PS114

, Brass 1/8˝ NPT

PS214

, Stainless Steel 1/8˝ NPT

Series PS

A-365

Optional Accessory Kits for Air Filters

A-602

A-603

A-604

A-605

A-602,

Air Filter Kit. Accessory package includes two pressure tips with integral compression fittings, two 5 ft. lengths of 1/4˝ aluminum tubing and two 1/8˝ NPT to 1/4˝ tubing compression fittings

A-603,

“T” Kit. Accessory package for using a pressure switch in conjunction with an air filter kit equipped Magnehelic ® . Includes two 1/8˝ NPT to 1/4˝ tubing compression fittings and two compression tees.

A-604,

“T” Kit. Accessory package for using a pressure switch in conjunction with a

Magnehelic ® . Includes two plastic tubing connector tees and two plastic tubing to

1/8˝ NPT adapters.

A-605,

Air Filter Gage Accessory package. Adapts any standard Magnehelic ® for use as an air filter gage. Includes aluminum surface mounting bracket with screws, two 5 ft.

(1.5 m) lengths of 1/4˝ aluminum tubing, two static pressure tips and two molded plastic vent valves, integral compression fittings on both tips and valves.

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055 8

Miscellaneous Accessories

Filters

A-391

A-392

A-331

In Line Filters

A-331

, 1 ⁄

8

" NPT Filter Vent Plug, nylon and sintered metal

A-391

, Line Filter, 1 ⁄

4

" female NPT x 1 ⁄

4

" male NPT

A-392

, Line Filter, 1 ⁄

8

" female NPT x 1 ⁄

8

" male NPT

F222,

Liquid/Particle Filter for compressed air. Removes dirt, water and oil.

22 scfm maximum flow, 1 ⁄

4

" female NPT inlet and outlet

1201-2

, Replacement Filter Element for F222 filter, package of 3

F451

, Liquid/Particle Filter for compressed air. Removes dirt, water and oil.

45 scfm maximum flow, 1 ⁄

4

" female NPT inlet and outlet

1201-3

, Replacement Filter Element for F451 filter, package of 3

F222 F451

Gage Tubing

A-201

A-222

Clear Tubing for Inspection

Clear plastic tubing is easily inspected and is therefore best for test applications where a possibility of fluid entering the tubing exists.

A-220

, Flexible Vinyl Tubing, Clear

3

16

" I.D. x

5

16

" O.D., lengths to 500 ft, 45 psi maximum pressure @ 73°F

A-221

, Flexible Vinyl Tubing, Clear

1

8

" I.D. x

3

16

" O.D., lengths to 500 ft, 40 psi maximum pressure @ 165°F

A-222

, Flexible Vinyl Tubing, Clear .240" I.D. x .375" O.D., lengths to 500 ft, 35 psi maximum pressure @ 73°F

Rubber Tubing for Portable Work

Rubber tubing has less tendency to kink in storage and occupies less space, thus is best for por table work.

A-201

, Rubber Tubing, 3 ⁄

16

" I.D., 9 ft length

A-202

, Rubber Tubing, 3 ⁄

16

" I.D. length to 50 ft

Metal Tubing for Permanent Installation

Metal tubing is the most durable and is recommended for using in permanent installations.

A-210

, Aluminum Tubing, 1 ⁄

4

" O.D., 5 ft length, 500 psi maximum pressure 200°F

A-211

, Aluminum Tubing, 1 ⁄

4

" O. D., lengths to 50 ft, 500 psi maximum pressure @ 200°F

A-210

Pumps

A-394

A-350

Air Source for Bubbler Level Systems

A-394,

Electric Air Pump. Provides convenient source of purge air in bubbler type liquid level systems. Dual diaphragm design allows operation of two systems simultaneously.

Aspirator Bulb for Quick Leak Checks

A-350,

Aspirator Bulb. Used as pressure source in calibration and leakage tests.

Calibration Pump with Precise Adjustment

A-396A,

Calibration pump. Serves as pressure source to calibrate gages and transmitters or to set pressure switches.

Use with manometer or other pressure standard. Includes volume adjuster enabling fine pressure control and bleed valve.

Generates pressures from a fraction of an inch w.c. to 72 psig

(5 bar). Includes barbed fitting, tee connector and three 36" lengths of vinyl tubing.

A-396A

9

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055

Related Products

Series A-304 Duct Connector

T h e Se ri e s A - 3 0 4 Du c t Co n n e c t o r allows for easy and fast connection of sensing tubes to ducting for static pressure reading to be taken. The low profile plastic connector is supplied complete with two screws and extension piece (80 mm long) for use with lagged or insulated ducts. The A-304 is suitable for use with 5 mm ID, PVC tubing.

STOCKED MODEL

Series A-304

Duct Connector

Model A-720 Strap Wrench

APPLICATIONS

Pressure connection point for fan proving applications, filter monitoring, damper control for the HVAC, dust control and fume extraction industries.

SPECIFICATIONS

• Plastic Duct Connector.

• Plastic Extension Piece 3.15˝ long x 0.39˝ dia.(80 mm long x 10 mm dia).

FEATURES

• Easy Installation & Low Cost

• Plastic Construction.

• Supplied with Mounting Screws and Extension Probe

FEATURES

• Reinforced plastic handle provides extra leverage.

• Rubber strap reinforced with 38 cords of high tensile polycarbon to give a breaking strength in excess of 2,000 lbs.

• Strap will grip objects from 20mm to 160mm diameter.

• Low cost, rugged and simple to use.

• Handy multi-purpose tool.

T h e A - 7 2 0 offers the user a versatile tool to grip, undo & tighten a wide variety of awkwardly shaped and sized objects.

The A-720 also makes the job of fitting Adjustable Signal Flags (ASF) to

Magnehelic® Gages much easier by simply following the instruction included with each cover supplied.

STOCKED MODEL

Model A-720

Strap Wrench

Clean Room Pressure Sensors

T h e St a i n l e s s St e e l ro o m s e n s o r s are a static pressure pick-up point for use in clean rooms and other contained environment areas. The all stainless steel construction offers a low profile, cleanable and neat answer to tubing termination within these areas. Three models exist to cover all needs: The A-414 has a push-on termination suitable for 5mm flexible plastic tubing, the A-

415 has a compression fitting, for use with 6mm

OD SS tubing and the A-416 is designed for fixing to standard par titions so that no fittings are shown on the clean room side; this model is clamped in place across the par tition. The A-414 and A-415 are supplied with stainless steel mounting screws.

SPECIFICATIONS

• All Stainless Steel construction

(satin finish).

• Supplied with SS mounting screws

(not A-416).

APPLICATIONS

These units offer a convenient, cost effective and neat way to terminate the static pressure connection points in Clean Rooms and Controlled

Environments.

STOCKED MODELS

i n b o l d

A-414

A-415

A-416

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055 10

Series 605

Magnehelic

®

with 4-20 mA

Transmitter Output

23/32

[18.26]

Patent No. 4,890,497

1/8 FEMALE

NPT HIGH

PRESSURE

CONNECTION

2

[50.80]

2-1/16

[52.39]

(4) 6-32 HOLES

EQUALLY SPACED ON

A 5-1/8 [130.18] B.C.

FOR FLUSH MOUNTING

1

[25.40]

30

°

(3) #6-32 x 3/16 [4.76]

DP HOLES EQUALLY SPACED

ON A Ø4-1/8 [104.78] B.C.

FOR PANEL MOUNTING

1-1/8

[28.58]

11/16

[17.46] signal utilizing the time-proven Dwyer Magnehelic installation time.

The Transmitter can be sur face mounted or flush mounted in a 4-13/16

(122 mm) diameter panel hole. Hardware is included for either option. Duplicate 1/8˝ female NPT pressure connections on side and back ease installation. Based on its unique combination of price and performance, the

Series 605 transmitter is ideal for use in commerical and industrial energy management systems. Typical applications include control of variable speed fans and blowers as well as the positioning of system dampers. Continuous data on air velocities in ducts and air filter pressure drops can be fed to the controlling computer.

STOCKED MODELS

i n b o l d

®

1-3/4

[44.45]

1-1/4

[31.75]

1/2 [12.70]

1/8 FEMALE NPT

LOW PRESSURE

CONNECTION

2-1/2

[63.50]

Do you need a Magnehelic ® gage and a transmitter? The D w y e r S e ri e s

6 0 5 offers both in one product! The 605 Magnehelic ® Indicating Transmitter provides for both visual monitoring and electronic control of ver y low differential pressure. The Series 605 is ideal for control applications in building HVAC systems where local indication is desired during routine maintenance checks or necessar y when trouble shooting the system. The easily read dial gage is complimented by the two-wire, 4-20 mA control gage mechanical design and Series 600 transmitter technology. The compact package reduces needed panel space by eliminating an additional transmitter plus reduces

Ø4-47/64

[ 120.25]

Ø5

[127.00]

5/8 [15.88]

PANEL MAX

3/16

[4.76]

Ø4 [101.60]

FACE

5-1/2 [139.70]

O.D. MOUNTING

RING

SPECIFICATIONS

GAGE SPECIFICATIONS

Service:

Air and non-combustible, compatible gases.

Wetted Materials:

Consult Factory.

Accuracy:

See chart.

Stability:

+1% F.S./yr.

Pressure Limits:

See chart.

Temperature Limits:

20 to 120°F (-6.67 to 48.9°C).

Process Connections:

1/8˝ female NPT.

Size:

4˝ (101.6 mm) dial face, 5˝ (127 mm) O.D. x 2-11/16˝ (68.3 mm).

Weight:

1 lb, 12.6 oz (811 g).

Agency Approvals:

CE.

TRANSMITTER SPECIFICATIONS

Accuracy:

See chart (includes linearity, hysteresis, repeatability).

Temperature Limits:

20 to 120°F (-6.67 to 48.9°C).

Compensated Temperature Range:

32 to 120°F (0 to 48.9°C).

Thermal Effect:

±0.025% F.S./°F (0.045% F.S./°C).

Power Requirements:

10-35 VDC (2 wire).

Output Signal:

4 to 20 mA.

Zero and Span Adjustments:

Protected potentiometers.

Loop Resistance:

DC; 0-1250 ohms maximum.

Current Consumption:

DC; 38 mA maximum.

Electrical Connections:

Screw terminal block.

Mounting Orientation:

Diaphragm in vertical position. Consult factory for other position orientations.

Model

Number

605-00N

605-11

605-0

605-1

605-2

605-3

605-6

605-10

Range in w.c.

Maximum

Pressure

.05-0-.20

.25-0-.25

0-.50

0-1.0

25 psi (1.7 bar)

25 psi (1.7 bar)

25 psi (1.7 bar)

25 psi (1.7 bar)

0-2.0

0-3.0

0-6.0

0-10

10 in. w.c. (2.5 kPa)

5 psi (34.5 kPa)

5 psi (34.5 kPa)

5 psi (34.5 kPa)

Electrical

Accuracy +/-%

2

2

2

2

0.5

0.5

0.5

0.5

Mechanical

Accuracy +/-%

2

2

2

2

4

3

2

2

Model

Number

605-20

605-30

605-50

605-60Pa

605-125Pa

605-250Pa

605-500Pa

Range in w.c.

0-20.0

0-30

0-50

Range in Pa

0-60

0-125

0-250

0-500

Maximum

Pressure

20 psi (1.4 bar)

20 psi (1.4 bar)

20 psi (1.4 bar)

25 psi (1.7 bar)

25 psi (1.7 bar)

25 psi (1.7 bar)

10 in. w.c. (2.5 kPa)

Electrical

Accuracy +/-%

0.5

0.5

0.5

2

2

2

0.5

Mechanical

Accuracy +/-%

2

2

2

2

2

4

2

11

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055

Series 160

Pitot Tubes for Sensing Air Velocity

Use with the Magnehelic® in Air Flow Applications

Standard Model 160 Pitot Tube

Ideal for use with our precision manometers and air velocity gages, Dwyer

Pitot Tubes are constructed from corrosion resistant stainless steel for a lifetime of ser vice. ASME design meets AMCA and ASHRAE specifications for maximum accuracy over a wide variety of flow conditions. No correction factors required as ASHRAE tip design yields a calibration factor of 1.

ASHRAE design needs no calibration! Permanent, stamped inser tion depth graduations on sides of 160 series facilitate accurate positioning. Static pressure por t is parallel to sensing tube allowing quick, easy alignment of tube with air flow. Low sensitivity to misalignment gives accurate reading even when tube is misaligned up to 15 degrees. Various standard sizes are available for use in ducts as small as 4˝ dia. or as large as 36 ft. dia. A universal model fits user supplied 3/4˝ schedule 40 (standard) pipe in any length. Several convenient mounting options are available for permanent installations.

STOCKED MODELS

i n b o l d

Model

Number

Standard 5 ⁄

16

" Dia.

Insertion

Length

Longer Length w/ Stiffener

Model

Number

Insertion

Length

160-8

160-12

160-18

160-24

160-36

160-48

160-60

8"

12"

18"

24"

36"

48"

60"

Universal Model for 3 ⁄

4

" Pipe

160-96

160-120

160-168

96"

120"

168"

160-216 216"

Pocket Size

1

8

" Dia.

166-6

166-12

167-6

167-12

6"

12"

6"

12"

160-U *

*Universal model for permanent installation and connection to metal tubing. Make any length Pitot tube with 3 ⁄

4

" schedule 40 pipe, 3 ⁄

4

" to 1 ⁄

2

" reducing bushing and 1 ⁄

4

" metal tubing.

Accessories & Options

A-156 Flange Mounting Plate

A-158 Split Flange

A-159 Mounting Gland

A-397 Step Drill

Compression Fitting

mounting option for

166/167 Series. Add -CF suffix (166-6-CF).

ACCESSORIES

No. A-158

Split Flange Mounting can be added to any Dwyer No. 160 Standard Pitot

Tube. Cadmium plated steel. Gasket is pattern for mounting holes. Secure flange loosely to tube, adjust tube depth and tighten screws. Gasket of 1/16˝ Neoprene fits tightly around tube and against duct for leak-proof seal. Nuts, washers included.

A-158 Split Flange

Mounting

• No calibration needed.

• Precisely located, burr-free static pressure holes.

• Hemispherical tip design, best for accuracy if imperfectly aligned and nearly impossible to damage.

• Long lasting 304 stainless steel construction.

• Silver soldered connections for leak-proof operation.

• ASME design meets AMCA and ASHRAE specifications.

• Coefficient of “1.”

• 5/16" models rated to 1500°F.

• Extended static connection helps guide tip within recommended 15° of air flow direction.

• Inch graduations on sides of 160 series to quickly determine exact inser tion depth.

• Dwyer Air Velocity Calculator, direct reading flow char ts and instructions included.

• Use 1/8" models in ducts as small as 4", 5/16" models in ducts 10" or larger.

• Optional mounting gland or split flange make permanent installation fast and simple.

No. A-159

Mounting Gland — Versatile adapter slips on any Series 160, 5/16˝ standard Pitot tube made after Dec. 1990. Twopart stainless steel fitting slides over tube and provides permanent, secure mounting.

Where duct interior is accessible, use the washers and jam nut supplied. For blind applications or in thicker materials, use model

A-156 flange mounting plate. Once tube is adjusted to proper depth and angle, tighten smaller hex bushing to lock position.

Graphite bushing inside assures leak-proof seal even at higher temperatures. Teflon ® bushing also available.

NOTE:

For full insertion with this fitting, order next longer Pitot tube.

No. A-397

Step Drill. For fast, convenient installation of Pitot tubes in sheet metal ducts.

No center punch needed; automatic de-burring. Drills six sizes from 3/16˝ - 1/2˝ in 1/16˝ increments.

A-159 Duct

Mounting Gland

A-397 Step Drill

A-156 Flange

Mounting Plate

A-159 Mounting Gland is used for both duct mounting and flange mounting. To flange mount, the

A-159 must be used with the

A-156 flange mounting plate.

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055

12

13

Capsuhelic

®

Differential Pressure Gage

Ideal for High Pressure Applications with Internal Pressure Rating to 500 psig

Series 4000

3/4 [19.05] TYP

1/4 FEMALE NPT HIGH

PRESSURE CONNECTION

(AIR OR GAS)

1/4 FEMALE NPT LOW

PRESSURE CONNECTION

(AIR OR GAS)

35

°

TYP

Ø4-45/64

[119.46]

(4) #6-32 X 3/8 [9.53] DP

HOLE ON A 4-11/32 [110.33]

BOLT CIRCLE

1/4 FEMALE NPT HIGH

PRESSURE CONNECTION

(LIQUID)

1/4 FEMALE NPT LOW

PRESSURE CONNECTION

(LIQUID)

13/32

[10.32] TYPE

2-19/32

[65.86]

1/2

[12.70]

Ø5

[127.00]

Capsuhelic ® Pressure Gage has a large, easy-to-read 4" (102 mm) dial.

D o yo u n e e d to m o n i to r l ow d i f fe re nt i a l p re s s u re s but have potentially high system static pressures. If the answer is yes, then the Capsuhelic® is the perfect solution!

Using the basic design of Dw yer’s time-proven Magnehelic® gage, the

Capsuhelic® contains a simple, frictionless movement that permits full scale readings as low as 0.5 inch water column. The pressure being measured is held within a capsule which is an integral par t of the gage. This containment of the pressure permits the use of the gage on system pressures of up to 500 psig, even when differentials to be read are less than 0.1 inch w.c.

The Capsuhelic® gage is designed to give fast, accurate indication of differential pressures. The gage may be used as a readout device when measuring flowing fluids, pressure drop across filters, liquid levels in storage tanks and many other applications involving pressure, vacuum or differential pressure.

The diaphragm-actuated Capsuhelic® gage requires no filling liquid which might limit its outdoor applications. Zero and range adjustments are made from outside the gage, and there is no need to disassemble the gage in normal ser vice.

N OT E : M a y be u s e d w i t h Hy d ro g e n w h e re p re s s u re s a re l e s s t h a n 3 5 p s i .

Dimensions, Series 4000 Capsuhelic ® Pressure Gages.

SPECIFICATIONS

Service:

Aluminum Case: Air and compatible gases and oil based liquids.

Brass Case: Air and compatible gases and water based liquids.

Wetted Materials:

Consult factory.

Housing:

Die cast aluminum with impregnated hard coating, standard.

Optional forged brass housing is required for water or water based fluids. Special material diaphragms available, contact factory.

Accuracy:

±3% of full scale at 70°F

(21.1°C). (±2% on 4000S models, ±4% on 4200, 4210, 4215, 4220,

4300, 4400, and 4500).

Pressure Limits:

-20˝ Hg to 500 psig.

(-0.677 bar to 34.4 bar).

Temperature Limits:

20 to 200°F

(-6.67 to 93.3°C).

Size:

face.

4˝ (101.6 mm) diameter dial

Mounting Orientation:

Diaphragm in vertical position. Consult factory for other position orientations.

Process Connections:

1/4˝ female

NPT high and low pressure taps, duplicated - one pair top for air and gas, and one pair bottom for liquids.

Weight:

3 lb, 3 oz (1.45 kg) aluminum case; 7 lb, 13 oz (3.54 kg) brass case.

Standard Accessories:

Two 1/4˝ NPT plugs for duplicate pressure taps, four flush mounting adapters with screws and four surface mounting screws.

MOUNTING

Capsuhelic ® gages may be flush mounted in a panel or sur face mounted. Hardware is included for either. For flush mounting, a 4-13/16˝ diameter cutout in panel is required. Where high shock or vibration are problems, order optional A-

496 Heavy Duty flush mount bracket. Optional A-610 kit provides simple means of attaching gage to 1-1/4˝-2˝ horizontal or ver tical pipe. Installation is same as

Magnehelic ® gage shown on page 1. All standard models are calibrated for ver tical mounting. Gages with ranges above 5 in. w.c. can be factory calibrated for horizontal or inclined mounting on special order.

Flush mounted in panel.

Back view shows flush mounting adapters.

Back view for surface mounting.

OPTIONS AND ACCESSORIES

Adjustable Signal Flag

— Integral with plastic gage cover; has external reset screw.

May be ordered factory installed on gage or separately for field installation. Specify ASF suffix after model number.

A-314 Bleed Fitting

— For easier, safer purging of trapped air when using gage with liquids.

Also useful for draining condensate when installed in lower ports. To open, simply loosen hex nut. Solid brass.

Forged Brass Case

— For applications involving water or water based liquids. To order, add suffix “B” after model number.

Example: 4205B.

Transparent Scale Overlays

— Available in bright red, green or yellow to accent critical pressure zones. Specify which color and portion of scale to be covered with each.

A-471 Portable Kit

— Includes plastic case, mounting bracket, A-309 3-way manifold valve, (2) A-230 high pressure hoses and all necessary fittings. Assembly required. Gage not included.

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055

Straightforward Design Assures Maintenance-free Performance

Top low pressure connection

(

for Air or Gas

) connects to chamber in back of diaphragm. High pressure air or gas port (cut away; not shown) connects with chamber in front of diaphragm through passageways in case.

Range spring calibration

is set by custom camlock.

Rate adjust and rate adjust lock are coaxial and are factory set and sealed.

Bezel

provides flange for flush mounting in panel.

O-ring seal

for cover assures dust tight integrity of case.

Clear plastic front cover

is highly resistant to breakage.

Provides undistorted viewing of pointer and scale.

Precision made case

is offered in two materials.

Standard is die cast aluminum coated inside for resistance to most oils and similar fluids. Optional forged brass case is recommended when using water or water based liquids. One case size for all pressure ranges — can be either surface or flush mounted.

Precision scale

, screen printed on aluminum, is accurate and easy to read.

Samarium cobalt magnet

mounted at end of range spring rotates helix without mechanical linkages.

Silicone rubber diaphragm

with integrally molded Oring is sealed between the case and backplate.

Diaphragm motion is restricted to prevent damage due to over-pressure.

“Wishbone” assembly

provides mounting for helix, helix bearings and pointer shaft.

Thin wall magnetic “window”

is well braced and of minimum area for maximum pressure capability.

Diaphragm support plate

of stainless steel minimizes position or attitude sensitivity.

Calibrated range spring

is a flat leaf of nickel plated spring steel. Small amplitude of motion assures consistency and long life. It reacts to pressure on diaphragm.

Live length factory adjusted for calibration.

Jeweled bearings for helix

are shock resistant mounted. They provide virtually friction-free rotation for helix.

Rotation is damped with high viscosity silicone fluid.

Bottom high pressure connection

(for Liquids)

connects to chamber in front of diaphragm. Low pressure liquid connection (not visible) connects with chamber in back of diaphragm through passageways in case.

Helix

is precision milled from an alloy of high magnetic permeability, mounted in jeweled bearings, and rotates to align with magnetic field of magnet and transmit pressure indication to pointer.

Zero adjustment screw

is conveniently located in plastic cover, accessible without removing cover. “O” ring seal provides dust seal.

Patent Nos. 4,011,759

4,030,365

SERIES 4000 CAPSUHELIC

®

— MODELS AND RANGES

Scales reading directly in flow, heights, etc., are also available.

STOCKED MODELS

in bold

Model

Number

Range,

Inches of

Water

*4000-0

*4001

*4002

*4003

*4004

*4005

4006

4008

4010

4015

4020

4025

4030

4040

4050

4060

4080

4100

4150

4200

4300

4400

4500

Model

Number

0-10

0-15

0-20

0-25

0-30

0-40

0-50

0-60

0-.50

0-1.0

0-2.0

0-3.0

0-4.0

0-5.0

0-6.0

0-8.0

0-80

0-100

0-150

0-200

0-300

0-400

0-500

Range

Feet of

Water

4616B

4635B

0-16

0-35

Available with brass case only

Model

Number

Range

Zero

Center

Inches of

Water

Model

Number

Range

MM of

Water

Model

Number

Range,

CM of

Water

*4302

*4304

4310

4320

4330

Model

Number

1-0-1

2-0-2

5-0-5

10-0-10

15-0-15

Range

PSI

*4000-25MM

*4000-50MM

4000-80MM

4000-100MM

Special Purpose

Ranges

0-25

0-50

0-80

0-100

4000-15CM

4000-20CM

4000-25CM

4000-40CM

4000-50CM

4000-80CM

4000-100CM

4000-150CM

4000-200CM

4000-250CM

4000-300CM

4201

4202

4203

4204

4205

4210

4215

4220

4230S

4240S

4260S

4280S

42100S

42200S

42300S

0-1

0-2

0-3

0-4

0-5

0-10

0-15

0-20

0-30

0-40

0-60

0-80

0-100

0-200

0-300

Scale No. 4401

Square Root

Specify Range

Scale No. 4402

Blank Scale

Specify Range

Accessories

A-298

A-309

Flat Flush Mounting Bracket

3-way Manifold Valve

A-314

A-370

A-471

A-496

A-610

Bleed Fitting

Mounting Bracket

Portable Kit

Flush Mount Bracket

Pipe Mount Kit

Options

Zero Center Ranges

*4300-4CM

4300-10CM

4300-30CM

2-0-2

5-0-5

15-0-15

Add Options as Suffix, Example 4001-ASF

-ASF (Adjustable Signal Flag)

-B (Brass Case)

Scale Overlays - Red, Green, Mirrored or combination. Specify Locations

0-15

0-20

0-25

0-40

0-50

0-80

0-100

0-150

0-200

0-250

0-300

*These ranges available for vertical scale position only.

These ranges use Spiralhelic ® movement.

Model

Number

*4000-125PA

*4000-250PA

*4000-500PA

4000-750PA

Range,

Pascals

0-125

0-250

0-500

0-750

*4300-500PA

Zero Center Ranges

250-0-250

Model

Number

4000-1KPA

4000-1.5KPA

4000-2KPA

4000-3KPA

4000-4KPA

4000-5KPA

4000-8KPA

4000-10KPA

4000-15KPA

4000-20KPA

4000-25KPA

4000-30KPA

Range,

Kilopascals

0-8

0-10

0-15

0-20

0-25

0-30

0-1

0-1.5

0-2

0-3

0-4

0-5

Zero Center Ranges

4300-1KPA

4300-3KPA

.5-0- .5

1.5-0-1.5

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055

14

Series DH

Digihelic

®

Differential Pressure Controller

Pressure,Velocity & Volumetric Flow Operation

3-19/32

(91.28) SP1

SP/AL

®

DIGIHELIC

®

SP2

MENU

2.000

INWC

AL

E

RST

3-25/32

(96.04)

1-15/16

(49.21)

4-1/2

(114.30)

1-3/4

(44.45)

1/2

(12.70)

4-1/2

(114.30)

Th e D w ye r S e r i e s D H D i g i h e l i c ® D i f fe re n t i a l P re s s u re

Controller

is the ideal instrument for pressure, velocity and flow applications, achieving a 0.5% full scale accuracy on ranges from 5 to 100 in.

w.c.

The Digihelic® provides a 4-20 mA process output, 2 SPDT relays with adjustable dead bands, and selection of pressure, velocity or flow operation. Units operate from either 120/220 VAC or 24 VDC.

Programming is simplified using a menu key, and includes: security level; set point or set point and alarm operation; auto or manual alarm reset; English or Metric engineering units; K-factor adjustment for use with various Pitot tubes and flow sensors; and circular or rectangular duct size for volumetric flow operation.

FEATURES

• Field Programmable for Pressure, Velocity or Flow Operation

• 4-20 mA Process Output

• 2 SPDT Relays with Selectable Dead Bands

• Universal Power Supply of 120/220 VAC & 24 VDC

• Retrievable Peak and Valley Readings

• 0.5% Full Scale Accuracy Sensor

• Modbus ® Communications

• Compact, 1/8 DIN Housing with NEMA 4X (IP66) Front Face

SPECIFICATIONS

Service:

Air and non-combustible, compatible gases.

Wetted Materials:

Consult factory.

Housing Material:

ABS plastic, UL approved 94-V-0.

Accuracy:

±0.5% at 77°F (25°C) including hysteresis and repeatability.

Stability:

< ±1% per year.

Pressure Limits:

3 X range.

Temperature Limits:

32 to 140°F (0 to 60°C).

Compensated Temperature Limits:

32 to 140°F (0 to 60°C).

Thermal Effects:

0.020%/°F (0.036/°C) from 77°F (25°C).

Power Requirements:

High Voltage Power = 100 to 240 VAC, 50 to 400 Hz or

132 to 240 VDC.

Low Voltage Power = 24 VDC ±20%.

Power Consumption:

Low Voltage Power = 24 VDC - 130 mA max.

High Voltage Power = 100 to 240 VAC, 132 to 240 VDC - 7VA max.

Output Signal:

4-20 mA DC into 900 ohms max.

Zero & Span Adjustments:

Response Time:

250 ms.

Accessible via menus.

Display:

4 digit LCD 0.4˝ height

LED indicators for set point and alarm status.

Electrical Connections:

Process Connections:

Screw terminals.

Compression fitting for use with 1/8˝ ID X 1/4˝ OD tubing (3.175 mm ID x 6.35 mm OD).

Enclosure Rating:

Face designed to meet NEMA 4X (IP66).

Mounting Orientation:

Size:

Mount unit in horizontal plane.

1/8 DIN. Panel Cutout: 1.772 x 3.620 in (45 x 92 mm).

Weight:

14.4 oz. (408 g).

Serial Communications:

Modbus ® RTU, RS485, 9600 Baud.

STOCKED MODELS

i n b o l d

Model No.

DH-006

DH-007

DH-008

DH-009

DH-010 in. wc

5.000

10.00

25.00

50.00

100.00

SWITCH SPECIFICATIONS

Switch Type:

2 SPDT relays.

Electrical Rating:

8 Amps at 240 VAC resistive.

Set Point Adjustment:

Adjustable via keypad on face.

Available Pressure Engineering Units ft. wc mm wc cm wc

.4167

127.0

12.70

.8333

2.083

4.167

8.333

254.0

635.0

1270

2540

25.40

63.50

127.0

254.0

psi

.1806

.3613

.9032

1.806

3.613

in. Hg mm Hg

.3678

.7356

1.839

3.678

7.356

9.342

18.68

46.71

93.42

186.8

mbar

12.45

24.91

62.27

124.5

249.1

Pa

1245

2491

6227

kPa

1.245

2.491

6.227

12.45

24.91

hPa

12.45

24.91

62.27

124.5

249.1

oz. in.

2.890

5.780

14.45

28.90

57.80

Bi-Directional Ranges also available:

DH-015 Range: 2.5 - 0 - 2.5˝ w.c.

DH-016 Range: 5 - 0 - 5˝ w.c.

Note:

Velocity and volumetric flow only available on models DH-006 & DH-007.

15 Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055

domesticIFCIBC spread 7/1/04 9:17 AM Page 1

Address:

Dwyer Instruments, Inc.

102 Indiana Highway 212

P.O. Box 373

Michigan City, IN 46361 U.S.A.

Customer Service

Fast, friendly customer service professionals are available to process and provide assistance with your order – whether it is by phone, fax, e-mail or through our website.

Technical Support

Have an application question? Our technical support professionals are trained to provide you with the answers you need.

Prompt Shipments

After you place your order, Dwyer’s dedicated shipping staff packs and ships your order promptly and completely –within 24 hours on most in-stock items.

Website

Dwyer Instrument’s website delivers the convenience you want. Go to www.dwyer-inst.com for the most complete ordering and product support information at your fingertips – anytime, day or night. Installation and operating manuals are available on products that are easily downloadable to your computer or printer.

Total customer service the way you need it.

e-mail:

General: [email protected]

Literature: [email protected]

Technical: [email protected]

Quotes: [email protected]

Telephone:

(800) 872-9141

(219) 879-8000 website: http://www.dwyer-inst.com

http://www.love-controls.com

http://dwyer-inst.com/retail http://proximitycontrols.com

Fax:

(219) 872-9057

Pressure Conversion Chart

P.S.I.

in/Hg bar mbar in/H

2

O

58

59

60

61

54

55

56

57

50

51

52

53

46

47

48

49

42

43

44

45

38

39

40

41

34

35

36

37

30

31

32

33

26

27

28

29

22

23

24

25

18

19

20

21

14

15

16

17

10

11

12

13

6

7

8

9

2

3

4

5

.1

.2

.4

.6

.8

1.0

90

91

92

93

86

87

88

89

82

83

84

85

78

79

80

81

94

95

96

97

98

99

100

74

75

76

77

70

71

72

73

66

67

68

69

62

63

64

65

mm/H

2

O mm/Hg

1372

1397

1422

1448

1473

1498

1524

1550

1168

1194

1219

1244

1270

1296

1321

1346

964.9

990.9

1016

1042

1067

1092

1118

1143

762.2

787.5

812.8

836.2

863.5

888.9

914.2

939.5

558.8

584.2

609.6

635.0

660.4

685.8

710.8

736.8

355.6

381.0

406.4

431.8

457.2

482.6

508.0

533.4

152.4

177.8

203.2

228.6

254.0

279.4

304.8

330.2

2.534

5.067

10.13

15.20

20.34

25.41

50.81

76.22

101.62

127.0

100.8

102.7

104.6

106.4

108.3

110.2

112.0

113.9

85.90

87.76

89.63

91.49

93.35

95.27

97.13

98.99

70.95

72.86

74.72

76.59

78.45

80.31

82.18

84.04

56.04

57.91

59.77

61.63

63.49

65.36

67.22

69.08

41.09

42.96

44.82

46.69

48.56

50.43

52.26

54.18

26.148

28.016

29.879

31.752

33.616

35.484

37.352

39.22

11.203

13.072

14.940

16.808

18.676

20.544

22.412

24.280

.1863

.3726

.7452

1.118

1.496

1.868

3.736

5.604

7.472

9.335

2184

2210

2265

2260

2286

2311

2336

2362

1981

2006

2032

2057

2082

2108

2134

2159

2387

2413

2438

2464

2489

2514

2540

1778

1803

1828

1854

1880

1905

1930

1956

1575

1600

1626

1651

1676

1702

1727

1752

160.6

162.5

164.4

166.2

168.1

169.9

171.8

173.7

145.7

147.5

149.4

151.2

153.1

155.0

156.9

158.8

130.7

132.6

134.4

136.4

138.2

140.1

141.9

143.8

115.8

117.7

119.5

121.4

123.3

125.1

127.0

128.8

175.5

177.4

179.3

181.2

183.0

184.9

186.8

kg/cm 2

1.949

1.985

2.021

2.057

2.093

2.129

2.165

2.202

1.660

1.696

1.732

1.768

1.804

1.841

1.877

1.913

1.371

1.408

1.444

1.480

1.516

1.552

1.588

1.624

1.083

1.119

1.155

1.191

1.227

1.263

1.299

1.335

.7940

.8301

.8662

.9023

.9384

.9745

1.010

1.047

.5053

.5414

.5774

.6136

.6496

.6857

.7218

.7579

.2165

.2526

.2887

.3248

.3609

.3970

.4331

.4692

.0036

.0072

.0144

.0216

.0289

.0361

.0722

.1083

.1444

.1804

3.104

3.140

3.176

3.212

3.248

3.284

3.320

3.356

2.815

2.851

2.887

2.923

2.959

2.996

3.032

3.068

2.526

2.562

2.598

2.635

2.671

2.707

2.743

2.779

2.238

2.274

2.310

2.346

2.382

2.418

2.454

2.490

3.392

3.429

3.456

3.501

3.537

3.573

3.609

3.968

4.041

4.115

4.188

4.261

4.335

4.408

4.483

3.378

3.453

3.526

3.600

3.673

3.748

3.822

3.895

2.791

2.876

2.940

3.013

3.086

3.160

3.233

3.306

2.205

2.278

2.352

2.425

2.498

2.571

2.645

2.718

1.616

1.690

1.764

1.837

1.910

1.984

2.056

2.132

1.029

1.102

1.176

1.249

1.322

1.396

1.470

1.543

.4408

.5143

.5878

.6613

.7348

.8083

.8818

.9553

.0073

.0146

.0293

.0440

.0588

.0735

.1470

.2205

.2940

.3673

6.320

6.393

6.466

6.450

6.613

6.686

6.760

6.833

5.731

5.805

5.878

5.951

6.024

6.100

6.173

6.246

5.143

5.216

5.290

5.365

5.438

5.511

5.585

5.658

4.556

4.630

4.703

4.776

4.850

4.923

4.996

5.070

6.906

6.981

7.055

7.128

7.201

7.275

7.348

.1370

.1395

.1421

.1146

.1471

.1497

.1522

.1548

.1167

.1192

.1218

.1243

.1268

.1294

.1320

.1345

.0964

.0990

.1015

.1040

.1066

.1091

.1116

.1142

.0761

.0787

.0812

.0837

.0862

.0888

.0913

.0938

.0558

.0584

.0609

.0634

.0660

.0685

.0710

.0736

.0355

.0381

.0406

.0431

.0457

.0482

.0507

.0533

.0152

.0178

.0203

.0228

.0254

.0279

.0304

.0330

.0002

.0005

.0010

.0015

.0020

.0025

.0051

.0076

.0102

.0127

.2182

.2207

.2233

.2258

.2283

.2309

.2334

.2359

.1979

.2004

.2030

.2055

.2080

.2106

.2131

.2157

.1776

.1801

.1826

.1852

.1878

.1903

.1928

.1954

.1573

.1599

.1624

.1649

.1674

.1700

.1725

.1750

.2384

.2410

.2436

.2461

.2486

.2512

.2537

.1344

.1369

.1393

.1418

.1443

.1468

.1493

.1518

.1144

.1169

.1194

.1219

.1244

.1269

.1294

.1319

.0945

.0971

.0996

.1020

.1045

.1070

.1095

.1120

.0747

.0772

.0796

.0821

.0846

.0871

.0896

.0920

.0547

.0572

.0597

.0622

.0647

.0672

.0696

.0722

.0348

.0373

.0398

.0423

.0448

.0473

.0498

.0523

.0149

.0174

.0199

.0224

.0249

.0274

.0299

.0324

.0002

.0005

.0010

.0015

.0020

.0025

.0050

.0075

.0099

.0124

.2140

.2165

.2190

.2215

.2239

.2264

.2289

.2314

.1941

.1966

.1991

.2015

.2040

.2066

.2091

.2115

.1742

.1766

.1791

.1817

.1842

.1866

.1891

.1916

.1543

.1568

.1593

.1618

.1642

.1667

.1692

.1717

.2339

.2364

.2389

.2414

.2439

.2464

.2488

Pa kPa

11445

11694

11942

12190

12438

12693

12941

13190

13438

13686

13934

14182

14431

14679

14927

15182

9453

9708

9956

10204

10452

10701

10949

11197

7467

7715

7963

8212

8460

8708

8956

9204

5474

5723

5972

6221

6470

6719

6964

7219

3484

3733

3981

4231

4479

4728

4977

5226

1493

1742

1990

2239

2488

2737

2986

3235

24.82

49.64

99.28

148.9

199.2

248.9

497.8

746.7

995.6

1244

19409

19657

19905

20153

20402

20657

20905

21153

21401

21650

21898

22146

22394

22642

22890

23139

15430

15679

15927

16175

16423

16672

16920

17168

17416

17664

17912

18168

18416

18664

18912

19160

23387

23642

23890

24138

24387

24635

24883

134.4

136.9

139.3

141.8

144.3

146.8

149.3

151.8

114.5

116.9

119.4

121.9

124.4

126.9

129.4

131.9

94.53

97.08

99.56

102.0

104.5

107.0

109.5

112.0

74.67

77.15

79.63

82.12

84.60

87.08

89.56

92.04

54.74

57.23

59.72

62.21

64.70

67.19

69.64

72.19

34.84

37.33

39.81

42.31

44.79

47.28

49.77

52.26

14.93

17.42

19.90

22.39

24.88

27.37

29.86

32.35

.2482

.4964

.9928

1.489

1.992

2.489

4.978

7.467

9.956

12.44

214.0

216.5

219.0

221.5

223.9

226.4

228.9

231.4

194.1

196.6

199.1

201.5

204.0

206.6

209.1

211.5

174.2

176.6

179.1

181.7

184.2

186.6

189.1

191.6

154.3

156.8

159.3

161.8

164.2

166.7

169.2

171.7

233.9

236.4

238.9

241.4

243.9

246.4

248.8

13.44

13.69

13.93

14.18

14.43

14.68

14.93

15.18

11.44

11.69

11.94

12.19

12.44

12.69

12.94

13.19

9.453

9.708

9.956

10.20

10.45

10.70

10.95

11.20

7.467

7.715

7.963

8.212

8.460

8.708

8.956

9.204

5.474

5.723

5.972

6.221

6.470

6.719

6.964

7.219

3.484

3.733

3.981

4.231

4.479

4.728

4.977

5.226

1.493

1.742

1.990

2.239

2.488

2.737

2.986

3.235

.0248

.0496

.0993

.1489

.1992

.2489

.4978

.7476

.9956

1.244

21.40

21.65

21.90

22.15

22.39

22.64

22.89

23.14

19.41

19.66

19.90

20.15

20.40

20.66

20.90

21.15

17.42

17.66

17.91

18.17

18.42

18.66

18.91

19.16

15.43

15.68

15.93

16.18

16.42

16.67

16.92

17.17

23.39

23.64

23.89

24.14

24.39

24.64

24.88

P.S.I.

6.6

6.7

6.8

6.9

7.0

7.1

7.2

7.3

5.8

5.9

6.0

6.1

6.2

6.3

6.4

6.5

5.0

5.1

5.2

5.3

5.4

5.5

5.6

5.7

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

3.4

3.5

3.6

3.7

3.8

3.9

4.0

4.1

2.6

2.7

2.8

2.9

3.0

3.1

3.2

3.3

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

18.0

19.0

20.0

21.0

22.0

23.0

24.0

25.0

9.8

10.0

11.0

12.0

13.0

14.0

14.7

15.0

16.0

17.0

7.4

7.5

7.6

7.8

8.0

8.2

8.4

8.6

8.8

9.0

9.2

9.4

9.6

bar

.4482

.4550

.4619

.4688

.4757

.4826

.4895

.4964

.3930

.3999

.4068

.4137

.4206

.4275

.4344

.4413

.3378

.3447

.3516

.3585

.3654

.3723

.3792

.3861

.2827

.2896

.2965

.3034

.3103

.3172

.3240

.3310

.2275

.2344

.2413

.2482

.2551

.2620

.2689

.2758

.1724

.1793

.1862

.1930

.1999

.2068

.2137

.2206

.0689

.0758

.0827

.0896

.0965

.1034

.1103

.1172

.1241

.1310

.1379

.1448

.1517

.1586

.1655

1.241

1.310

1.379

1.448

1.517

1.586

1.655

1.724

.7584

.8274

.8963

.9652

1.014

1.034

1.103

1.172

.5929

.6067

.6205

.6343

.6481

.6619

.6757

.6895

.5033

.5102

.5171

.5240

.5378

.5516

.5654

.5792

kg/cm

2

.4570

.4640

.4710

.4781

.4851

.4921

.4992

.5062

.4007

.4078

.4148

.4218

.4289

.4359

.4429

.4500

.3445

.3515

.3586

.3656

.3726

.3797

.3867

.3937

.2883

.2953

.3023

.3094

.3164

.3234

.3304

.3375

.2320

.2390

.2461

.2531

.2601

.2672

.2742

.2812

.1758

.1828

.1898

.1968

.2039

.2109

.2180

.2250

.0703

.0773

.0844

.0914

.0984

.1055

.1125

.1195

.1266

.1336

.1406

.1476

.1547

.1617

.1687

1.265

1.336

1.406

1.476

1.547

1.617

1.687

1.758

.7734

.8437

.9140

.9843

1.033

1.055

1.125

1.195

.6046

.6187

.6328

.6468

.6609

.6749

.6890

.7031

.5132

.5203

.5273

.5343

.5484

.5625

.5765

.5906

in/Hg mm/H

2

O

4570

4640

4711

4781

4851

4922

4992

5062

4008

4078

4148

4218

4289

4359

4429

4500

3445

3515

3586

3656

3726

3797

3876

3973

2883

2953

3023

3094

2164

3234

3304

3375

2320

2390

2461

2531

2601

2672

2742

2812

1758

1828

1898

1969

2039

2109

2180

2250

1195

1266

1336

1406

1476

1547

1617

1687

703.1

773.4

843.7

914.0

984.3

1055

1125

7734

8437

9140

9843

10340

10550

11250

11950

12660

13360

14060

14770

15470

16170

16870

17580

6047

6187

6328

6468

6609

6750

6890

7031

5132

5203

5273

5343

5484

5625

5765

5906

mm/Hg

336.1

341.3

346.5

351.7

356.8

362.0

367.2

372.3

294.8

299.9

305.1

310.3

315.5

320.6

325.8

331.0

253.4

258.6

263.7

268.9

274.1

279.3

284.4

289.6

212.0

217.2

222.4

227.5

232.7

237.9

243.1

248.2

170.7

175.8

181.0

186.2

191.3

196.5

201.7

206.9

129.3

134.5

139.6

144.8

150.0

155.1

160.3

165.5

51.75

56.89

62.06

67.23

72.40

77.57

82.74

87.92

93.09

98.26

103.4

108.6

113.8

118.9

124.1

930.9

982.6

1034

1086

1138

1189

1241

1293

568.9

620.6

672.3

724.0

760.2

775.7

827.4

879.1

444.7

455.1

465.4

475.8

486.1

496.5

506.8

517.1

377.5

382.7

387.9

393.0

403.4

413.7

424.1

434.4

13.23

13.44

13.64

13.84

14.05

14.25

14.46

14.66

11.60

11.81

12.01

12.22

12.42

12.62

12.83

13.03

9.976

10.18

10.38

10.59

10.79

10.99

11.20

11.40

8.348

8.551

8.775

8.958

9.162

9.366

9.569

9.773

6.719

6.922

7.126

7.330

7.535

7.737

7.940

8.144

5.090

5.294

5.497

5.701

5.904

6.108

6.312

6.515

2.036

2.240

2.443

2.647

2.850

3.054

3.258

3.461

3.665

3.686

4.072

4.276

4.479

4.683

4.886

36.65

36.68

40.72

42.76

44.79

46.83

48.86

50.90

22.40

24.43

26.47

28.50

29.93

30.54

32.58

34.61

17.51

17.92

18.32

18.73

19.14

19.54

19.95

20.36

14.86

15.07

15.27

15.47

15.88

16.29

16.70

17.10

in/H

2

O

174.4

177.2

179.9

182.7

185.5

188.2

191.0

193.8

152.2

155.0

157.8

160.5

163.3

166.1

168.8

171.6

130.1

132.9

135.6

138.4

141.2

143.9

146.7

149.5

108.0

110.7

113.5

116.3

119.0

121.8

124.6

127.3

85.81

88.58

91.35

94.11

96.88

99.65

102.4

105.2

63.67

66.43

69.20

71.97

74.74

77.51

80.27

83.04

27.71

30.45

33.22

35.98

38.75

41.52

44.29

47.06

49.82

52.59

55.36

58.13

60.90

442.9

470.6

498.2

525.9

553.6

581.3

609.0

636.7

664.3

692.0

271.3

276.8

304.5

332.2

359.8

387.5

406.9

415.2

227.0

232.5

238.0

243.6

249.1

254.7

260.2

265.7

196.5

199.3

202.1

204.8

207.6

210.4

215.9

221.4

mbar Pa

39300

39990

40680

41370

42060

42750

43440

44130

44820

45500

46190

46880

47570

48260

48950

49640

28270

28960

29650

30338

31030

31720

32400

33100

33780

34470

35160

35850

36540

37230

37920

38610

17240

17930

18620

19300

19990

20680

21370

22060

22750

23440

24130

24820

25510

26200

26890

27580

6895

7584

8274

8963

9652

10340

11030

11720

12410

13100

13790

14480

15170

15860

16550

75840

82740

98630

96520

101400

103400

110300

117200

124100

131000

137900

144800

151700

158600

165500

172400

50330

51020

51710

52400

53780

55160

56540

57920

59290

60670

62050

63430

64810

66190

67570

68950

448.2

455.0

461.9

468.8

475.7

482.6

489.5

496.4

393.0

399.9

406.8

413.7

420.6

427.5

434.4

441.3

337.8

344.7

351.6

358.5

365.4

372.3

379.2

386.1

282.7

289.6

296.5

303.4

310.3

317.2

324.0

331.0

227.5

234.4

241.3

248.2

255.1

262.0

268.9

275.8

172.4

179.3

186.2

193.0

199.9

206.8

213.7

220.6

68.95

75.84

82.74

89.63

96.52

103.4

110.3

117.2

124.1

131.0

137.9

144.8

151.7

158.6

165.5

1241

1310

1379

1448

1517

1586

1655

1724

758.4

827.4

896.3

965.2

1014

1034

1103

1172

592.9

606.7

620.5

634.3

648.1

661.9

675.7

689.5

503.3

510.2

517.1

524.0

537.8

551.6

565.4

579.2

kPa

44.82

45.50

46.19

46.88

47.57

48.26

48.95

49.64

39.30

39.99

40.68

41.37

42.06

42.75

43.44

44.13

33.78

34.47

35.16

35.85

36.54

37.23

37.92

38.61

28.27

28.96

29.65

30.34

31.03

31.72

32.40

33.10

22.75

23.44

24.13

24.82

25.51

26.20

26.89

27.58

17.24

17.93

18.62

19.30

19.99

20.68

21.37

22.06

6.895

7.584

8.274

8.963

9.652

10.34

11.03

11.72

12.41

13.10

13.79

14.48

15.17

15.86

16.55

124.1

131.0

137.9

144.8

151.7

158.6

165.5

172.4

75.84

82.74

89.63

96.52

101.4

103.4

110.3

117.2

59.29

60.67

62.05

63.43

64.81

66.19

67.57

68.95

50.33

51.02

51.71

52.40

53.78

55.16

56.54

57.92

CONVERSION

FACTORS

NOTE:

CONVERSION FACTORS

ROUNDED

P.S.I. x 27.71 = in. H

2

O

P.S.I. x 2.036 = in. Hg

P.S.I. x 703.1 = mm/H

2

O

P.S.I. x 51.75 = mm/Hg

P.S.I. x .0703 = kg/cm 2

P.S.I. x .0689 = bar

P.S.I. x 68.95 = mbar

P.S.I. x 6895 = Pa

P.S.I. x 6.895 = kPa

Dwyer Instruments, Inc./P.O. Box 373/Michigan City, IN 46361/Phone 219 879-8000/Fax 219 872-9057 • U.K. Phone (+44) (0)1494-461707 • Australia Phone 61 2 4272-2055 16

mag dom obc/ofc 7/1/04 4:02 PM Page 1

DWYER INSTRUMENTS, INC.

P.O. Box 373

Michigan City, IN 46361-9986

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