Equipment to Measure, Control and Manage Data

Equipment to Measure, Control and Manage Data American Meter Company Supplies the industry s broadest line of equipment for the measurement, control and data management in applications using natural gas and dry industrial gases. This equipment is used in virtually every application imaginable, from local measurement of gas consumption by a single burner; to monitoring complete transmission and distribution systems. This catalog presents a very brief overview of the tools available from American Meter. For more detailed information, request the data bulletin for that specific product. And, don t hesitate to contact us with any questions involving gas measurement. 1 2 4 This typical system illustrates the elements of a basic meter installation with the associated equipment normally included. 1. Filters remove particulate such as pipe scale which could impair the operation or accuracy of regulators, meters or gasburning equipment. 2. An upstream pressure regulator reduces line pressure and provides a stable pressure to the meter. 3. The meter itself which could be monitoring the gas usage of an entire plant or a single piece of equipment. 4. An electronic flow computer, or correcting device. 5. A downstream regulator to further reduce gas pressure as required for specific equipment.. 5 3

American Meter products provide accurate, reliable and costeffective measurement of gas flows in every conceivable application. For industrial applications, there are products suitable for measuring the gas consumption of a complete plant, a particular department or a single piece of equipmentm that can provide management with information needed to operate more efficiently. A comprehensive program of monitoring and controlling natural gas, compressed air and process gas consumption provides a number of benefits: reduced energy waste and operating costs true cost accounting through accurate energy usage data identification of inefficient equipement for more timely meaintenance, overhaul or reloacement possible tax savings through documentation of gas used for manufacturing accurate monitoring of transportation gas purchased from one supplier and delivered bu the pipeline of a second company warnings of possible equipment malfunction Glossary Standard (base) conditions: 60ºF (520ºR) temperature and 14.73 psia pressure. Actual cubic feet: Volumetric measurement of gas at actual line conditions of temperature and pressure. Standard cubic feet: Volumetric measurement of gas at standard conditions of temperature and pressure. Cubic feet per hour (CFH), Standard cubic feet per hour (SCFH): Measurement of gas flow rate in acutal or standard cubic feet per hour. Uncorrected volume: The volume of gas measured at line temperature and pressure. Corrected volume: The uncorrected volume measurement which has been converted to the equivalent volume in standard cubic feet. Atmospheric pressure: The local, or ambient pressure at a location. Near sea level, atmospheric pressure is approximately 14.7 psia. Gauge pressure: The pressure above atmospheric pressure, normally expressed as psig. Absolute pressure: The pressure above a perfect vacuum. Absolute pressure is equal to the sum of atmospheric pressure and gauge pressure, normally expressed as psia. Inches water column (W.C.): A unit of pressure measurement. One inch of water column equals 0.036 psi. Rangeability: The ratio of maximum capacity to minimum capacity over which a meter will operate with specified accuracy. Factors Affecting Gas Measurement Pressure and temperature Gas meters preform measurements at line conditions of pressure and temperature. This measurement is known as the uncorrected volume. In most applications, it s necessary to convert uncorrected volume to the equivalent volume at standard conditions (corrected volume). At line pressures above 14.73 psia, the corrected volume will be greater than the uncorrected volume. The effect of pressure can be calculated as follows: Standard cubic feet= Actual cubic feet X Atmospheric pressure + gauge pressure 14.73 psia When actual flowing temperatures are above the standard condition of 60ºF, corrected volume will be less than uncorrected volume. (Conversely, at temperatures below 60ºF, corrected volume will be greater.) The effect of temperature can be calculated as follows: Standard cubic feet= Actual cubic feet X 460ºF + 60ºF 460ºF + flowing temperature (ºF) In actual practice, some type of correcting device is normally used with a meter to automatically convert to standard cubic feet. For diaphragm and turbine meters in an application where line pressure is stable, the meter can be supplied with an index that corrects for a constant pressure. Diaphragm meters can also be supplies with a compensating tangent for temperature correction. For turbine meters and larger capacity diaphragm meters an electronic corrector is normally used. Specific Gravity Capacity data for the meters in this catalog are based on natural gas, with a specific gravity of 0.60. A change in specific gravity will not change the capacity of a turbine meter. However, specific gravity will affect the maximum capacity of diaphragm meters. For data on gases with other specific gravities see page 17. While current at the time of printing, specifications In this catalog are subject to change as a result of American Meter s ongoing product improvement efforts.

Selecting the Correct Meter American Meter supplies three types of meters, diaphragm, rotary and turbine. Diaphragm meters are positive displacement devices that have fixedvolume measurement compartments formed by a twosided diaphragm. A small pressure drop across the meter causes it to cycle so these compartments alternately fill with gas at the inlet, and then empty at the outlet. By counting the number of cycles, the meter provides a measure of gas volume. Rotary meters are also positive displacement measurement devices. In this case, a pair of hourglass shaped impellers form the fixed volume compartments. When downstream demand initiates the flow of gas, the impellers rotate to receive a fixed volume of gas at the inlet and then discharge it at the outlet. In place of fixedvolume compartments, a turbine meter has a rotor in the gas system. As gas flows through the meter, the rotor turns at a speed that is proportional to the rate of gas flow. Deciding which type meter is the best choice for a particular application depends on: The pressure of the gas being measured The maximum flow rate to be measured The minimum flow rate to be measured Gas pressure The first consideration in selecting a gas meter is the pressure of the gas being measured. Depending on the specific model, diaphragm meters have pressure ratings up to 100 psig. Rotary meters can operate at pressures up to 175 psig. For applications above 175 psig, select a turbine meter. Minimum and maximum flow Rates In applications with line pressures less than 100 psig and maximum flow rates of 850 SCFH or less, always choose a diaphragm meter. For flow rates higher than 141,000 SCFH, a turbine meter is the correct choice. For applications with maximum flow rates between 850 and 50,000 SCFH and lone pressures less than 100 psig, diaphragm, rotary or turbine meters can be considered. For flow rates between 50,000 and 141,000 SCFH and line pressures up to 125 psig, the choice will be between rotary or turbine meters. Another consideration to keep in mind when selecting a gas meter is the rangeability of the meter. Rangeability is the ratio of maximum flow rate to minimum flow rate which can be measured within the specified accuracy of the meter. American Meter diaphragm meters provide an accuracy of +1% of reading with a ranageability of 100 to 1. Therefore, an AC250 meter with a maximum capacity of 250 standard CFH (SCFH) will provide 1% accuracy for flow rates from 2.5 to 250 SCFH. For rotary meters, rangeability at 1% accuracy ranges from 20:1 up to 50:1 depending on the meter size. For applications where 2% accuracy is sufficient, rotary meters will provided rangeabilities up to 90 to 1. For turbine meters, ranageability increases at higher pressures providing a wider operating range at these pressures. For example, a 3GTS turbine meter operating at a line pressure of 0.25 psig has a rangeability of 12:1. The maximum capacity of the meter is 10,000 SCFH, providing an operating range of 833 to 10,000 SCFH with accuracy of 1% of reading. The same meter is an application with line pressure of 100 psig has a rangeability of 33:1 and a maximum capacity of 78,000 SCFH so it will measure from 2,360 to 78,000 SCFH with 1% accuracy. 1440 psig (99.8 Bar) Meter Selection by Capacity and Pressure 175 psig (12 Bar) Rotary or Turbine Meters 100 psig (6.9 Bar) Line Pressure Diaphragm Meters Diaphragm Rotary or Turbine Meters Turbine Meters 1 psig (69 mbar) 10 (0.28) 1000 (28.32) 50,000 (1416) 141,000 (3993) 18,000,000 (509,760)

Table of Contents Page Introduction to gas measurement Inside Front Cover Aluminumcase diaphragm meters 23 Rotary Meters 45 Turbine Meters 67 Pressure regulation and control 89 Overpressure shutoff devices 10 Filters 10 Meter accessories 11 Automated meter reading systems 12 Pantheon Data Management solutions 13 Remeter services 1415 Meter provers 16 Sonic nozzles 16 Test meters 16 Guide to other gases 17

Aluminumcase Diaphragm Meters American Meter is the industry s leading supplier of positive displacement gas meters with models for applications from domestic service to large industrial users. Featuring a onepiece cast aluminum alloy body and aluminum alloy top and covers, Aluminumcase meters have an outstanding record for durability and reliability. Light, compact aluminum case meters Durable valve material minimizes wear Onepiece body eliminates the need for machined joints and gaskets, and the possibility of internal leakage Molded, convoluted diaphragms provide smooth operation and long life Lowfriction seals Adjustable tangent Rugged flag rods for positive alignment and sustained accuracy Large, selflubricating bearings Twopart epoxy primer and acrylic finish coat AT210/AT250 For direct replacement of tin meters with no change to the existing swivels. Nominal capacities of 210 or 250 SSCFH (5.9 or 7.1 SCMH), max line pressure of 5 psi (345 mbar). Sales Bulletin SB 3504 AC250/AM250 Nominal capacity of 250 SCGH (7.1 SCMH), max line pressure of 5 psi (345 mbar) or 10 psi (690 mbar). AC 250 has top connections, AM250 has side connections. Sales Bulletin SB 3535 AC250 Sales Bulletin SB 3537 AM250 AL425 Nominal capacity of 425 SCFH (12.0 SCMH). Available in two versions, with max line pressure of 10 or 25 psi (690 mbar or 1.7 Bar). Sales Bulletin SB 3550 AC630 AT210 AL425 AT,AC,AM250 AC630 2 Diaphragm meter options All Aliminumcase meters can be supplied with temperature compen Sation. This feature converts the volume of gas measured at actual (line) temperatures from 30 to 140ºF to the equivalent volume at standard 60ºF base temperature. Meters can also be supplied with your choice of either a circle reading a digital index. Nominal capacity of 630 SCFH (17.8 SCMH) max line pressure of 25 psi (1.7 Bar). Larger capacity in a small, lightweight meter.sales Bulletin SB 3550 AL800/AL1000/AL1400/ AL2300/AL5000 Nominal capacities from 800 to 5,000 SCFH (22.7 to 141.6 SCMH). For maximum line pressures up to 100 psi (6.9 Bar), AL800 also available in 20 psi (1.4 Bar) model; AL1000 in 25 psi (1.7 Bar) model. Models AL1400, AL2300 and AL5000 available with threaded or flanged connections. Sales Bulletin SB 3510 AL800/AL1000 AL1400

Aluminumcase Diaphragm Meters continued Line Pressure 0.25 psi (17 mbar) METER CAPACITIES* SCFH / (SCMH) AT250 AT,AC, AM250 AL425 AC630 AL800 AL1000 AL1400 AL2300 AL5000 210 250 425 630 800 1,000 1,400 2,300 5,000 (5.9) (7.1) (12.0) (17.8) (22.7) (28.3) (39.6) (65.1) (141.6) 5 psi (345 mbar) 462 (13.1) 593 (16.8) 1,100 (31.1) 1,515 (42.9) 2,100 (59.5) 2,700 (76.5) 3,700 (104.8) 6,200 (175.6) 13,500 (382.3) 10 psi (690 mbar) 1,350 (38.2) 1,710 (48.4) 2,600 (73.6) 3,400 (96.3) 4,600 (130.3) 7,700 (218.1) 17,000 (481.4) 20 psi (1.4 Bar) 1,700 (48.1) 2,010 (56.9) 3,200 (90.6) 4,100 (116.1) 5,600 (158.6) 9,400 (266.2) 20,600 (583.4) 25 psi (1.7 Bar) 1,880 (53.2) 2,160 (61.2) 3,500 (99.1) 4,600 (130.3) 6,200 (175.6) 10,400 (294.5) 23,000 (651.4) 50 psi (3.45 Bar) 5,100 (144.4) 6,600 (186.9) 9,000 (254.9 15,000 (424.8) 33,000 (934.6) 100 psi (6.9 Bar) 7,800 (220.9) 10,100 (286.0) 13,800 (390.8) 23,000 (651.4) 50,500 (1,430.2) * Capacity data based on natural gas with 0.6 specific gravity (For complete capacity data, see individual product bulletins.) 3 AL2300 AL5000

Rotary Meters American Meter s RPM Series Rotary Gas Meters provide accurate flow measurement and outstanding performance for industrial and commercial measurement applications. These meters feature an extruding aluminum housing that provides superior strength, making them ideal for service where pipe stress and snapacting loads can occur. All RPM Series meters mount in either a vertical or horizontal position, depending on available space and convenience. Once installed, all standard and optional equipment can be easily positioned for convenient reading and quick service. Models 9.0CG16 and 1.5MG25 have a minimum rangeability (at 1% accuracy) of 20:1 and can be supplied with 1.5 NPT or 2 flanged connections. Model 3.5MG25 has a minimum rangeability of 30:1 and is supplied with 2 flanged connections. Model 5.5MG100 has a minimum rangeability of 50:1 and flanged connections for 2 or 3 piping. RPM Series meters are available with an optional batterypowered temperature compensator which mounts directly above the standard mechanical register, providing a very compact installation. A thermowell in the meter housing detects temperature changes in the gas stream providing accurate compensation from 40ºF to 140ºF (40ºC to 60ºC). The temperature compensator also stores daily corrected and uncorrected volume data for one month. A separate data file records a monthly summary of this information for the previous six months of operation. This data can be accessed via a laptop computer connected to a port on the unit. Sales Bulletin SB 5500 RPM rotary meters are available for pipe sizes from 1.5 NPT up to 4. 4 An optional, batterypowered temperature compensator mounts directly above the meter. Regardless of the meter s mounting position, the temperature compensator can be positioned to face the meter reader. Corrected volume is displayed constantly. Electronic volume correctors or flow computers can also be mounted to the meter in place of the temperature compensator. Rotary Meters continued

Rotary Meters continued 9.0C LINE PRESSURE 1 G16 0.25 psi 900 (17 mbar) (25.5) METER CAPACITIES* SCFH / (SCMH) 1.5M 3.5M 5.5M G25 G65 G100 1,500 3,500 5,000 (42.5) (99.1) (141.6) 7M 7,000 (198.2) 11M 11,000 (311.5) 5 psi (345 mbar) 1,184 (33.5) 1,973 (55.9) 4,603 (130.4) 7,233 (204.8) 9,205 (260.7) 14,465 (409.6) 10 psi (690 mbar) 1,489 (42.2) 2,482 (70.3) 5,791 (164) 9,099 (257.7) 11,581 (328.0) 18,199 (515.4) 25 psi (1.7 Bar) 2,405 (68.1) 4,009 (113.5) 9,355 (264.9) 14,700 (416.3) 18,709 (529.8) 29,401 (832.6) 50 psi (3.45 Bar) 3,933 (111.4) 6,555 (185.6) 15,295 (433.1) 24,035 (680.7) 30,590 (866.3) 48,070 (1,361.3) 100 psi (6.9 Bar) 6,988 (197.9) 11,647 (329.8) 27,175 (769.6) 42,704 (1,209.4) 54,351 (1,539.2) 85,409 (2,418.8) 150 psi (10.35 Bar) 175 psi (12.08 Bar) 10,043 (284.4) 11,570 (327.7) 16,738 (474) 19,284 (546.1) *For complete capacity data, see Sales Bulletin SB 5500. 1 Line pressure to 285 psi MAOP (19.65 Bar) optional. 39,056 (1,106.1) 44,996 (1,274.3) 61,374 (1,738.1) 70,708 (2,002.4) 78,112 (2,212.1) 89,993 (2,548.6) 122,747 (3,746.2) 141,417 (4,004.9) 5 A customer s complete sixmonth usage history is available through the temperature compensator s electronic data files which can be accessed via a laptop computer connected to the unit s interface port. The unit s memory stores daily corrected and uncorrected volume for one month. A monthly summary of this information for the six previous months of operation is maintained in a separate data files.

Turbine Meters These compact, highperformance meters provide accurate totalization of high volume gas flows. American Meter GTS meters are available in line sizes from 3 to 12. The 4, 6, and 8 sizes can be supplies with extended capacity (30º rotor) ranges which can reduce the pipe size of an entire meter run, resulting in substantial savings. GTS meters are available with a mechanical drive output, electronic pulse output only, or mechanical and electronic pulse outputs. Designed for reliable, longterm service, these meters feature: Electronic temperature compensation Fixed factor pressure compensation Flushtype lubrication system Aluminum rotors for highpressure models and meters with highfrequency pulse outputs One output gear train for all meter sizes to reduce spare parts inventory Highefficiency inlet flow conditioners High frequency inductivetype pulser that monitors rotor condition Interchangeable precalibrated measurement cartridges for easy maintenance. Sales Bulletin SB 4510 PRESSURE LINE PSIG (**mbar/bar) 0.25 (17)** 10 (690)** 50 (3.4) 100 (6.9) 500 (34.5) 1,000 (69.0) 1,400 (96.5) MAX CAP 10 (0.28) 17 (0.48) 44 (1.25) 79 (2.24) 379 (10.73) 814 (23.05) 1,197 (33.90) METER CAPACITIES* 1000 SCFH / (1000 SCMH) 4 GTS / ACCUTEST 3 GTS STANDARD ROTOR 30º ROTOR RANGE MAX CAP 12:1 18 (0.51) 15:1 30 (0.85) 25:1 80 (2.27) 33:1 142 (4.02) 71:1 695 (19.68) 100:1 1,466 (41.52) 118:1 2,154 (61.00) RANGE MAX CAP 15:1 23 (0.65) 19:1 38 (1.08) 31:1 102 (2.89) 42:1 182 (5.15) 89:1 872 (24.69) 124:1 1,873 (53.04) 147:1 2,754 (77.99) *For complete capacity data see sales bulletin SB 4510 for GTS meters or SB 4515 for AccuTest meters. RANGE 12:1 15:1 25:1 33:1 71:1 100:1 118:1 6 GTS and AccuTest turbine meters are supported by low (350 cubic foot Bell Prover, large sonic nozzle provers), medium (150 psi recirculating air test loop with master turbine meters as reference standard), and high (natural gas test pressures to 1000 psi with master turbine meters as reference standard) pressure test facilities. 3 GTS 4 GTS 4 AccuTest

Turbine Meters continued PRESSURE LINE PSIG (**mbar/bar) METER CAPACITIES* 1000 SCFH / (1000 SCMH) 6 GTS/ACCUTEST 8 GTS/ACCUTEST STANDARD ROTOR 30º ROTOR STANDARD ROTOR 30º ROTOR 12 GTS MAX MAX MAX MAX MAX CAP RANGE CAP RANGE CAP RANGE CAP RANGE CAP RANGE 0.25 (17)** 35 (0.99) 18:1 56 (1.59) 12:1 60 (1.70) 20:1 88 (2.49) 15:1 150 (4.25) 25:1 10 (690)** 58 (1.64) 23:1 93 (2.63) 15:1 100 (2.83) 26:1 146 (4.13) 19:1 250 (7.08) 32:1 50 (3.4) 154 (4.36) 38:1 247 (6.99) 25:1 265 (7.50) 42:1 388 (10.99) 31:1 662 (18.75) 52:1 100 (6.9) 276 (7.82) 50:1 442 (12.52) 33:1 474 (13.42) 56:1 695 (19.68) 42:1 1,185 (11.56) 70:1 500 (34.5) 1,328 (37.61) 106:1 2,125 (60.18) 71:1 2,276 (64.46) 118:1 3,339 (94.56) 89:1 5,691 (161.17) 148:1 1,000 (69.0) 2,851 (80.74) 149:1 4,561 (129.17) 100:1 4,887 (138.40) 166:1 7,167 (202.97) 124:1 12,217 (345.98 207:1 1,400 (96.5) 4,190 (118.66) 176:1 6,705 (189.89) 118:1 7,184 (203.45) 196:1 10,536 (298.38) 147:1 17,959 (508.60) 245:1 *For complete capacity data see sales bulletin SB 4510 for GTS meters or SB 4515 for AccuTest meters. 7 AccuTest TM Transfer Proving Turbine Meters These innovative units combine all the features and benefits of American Meter s GTS turbine meters with an additional integral reference meter that provides onsite, inline testing under actual operating conditions. An AccuTest meter, with your laptop computer, becomes a transfer proving system, without removing the cartridge from the meter. AccuTest meters are available in 4, 6 and 8 sizes with standard or extended capacity rotor systems. Sales Bulletin SB 4515 AccuTest meters combine a highperformance turbine meter with an integral test meter for onsite, online testing under actual operating conditions. Transfer proving has graduated to onsite, inline turbine meter testing. Onscreen diagnostics and oneminute test cycles assure precise accuracy and reduce the cost of periodic testing.

Pressure Regulation and Control 8 American Meter pressure regulators are used (a) upstream of a gas meter to reduce inlet pressure to the meter and eliminate fluctuations which can affect meter accuracy and (b) downstream from the meter to provide reduced pressure for gas operated equipment. Factors which determine the selection of a pressure regulator are: Inlet pressure to the regulator The outlet pressure which the regulator must maintain The required capacity of the regulator in SCFH Regulators frequently include options for protection against upset conditions. The most common of these include: Overpressure shutoff (OPSO) the ability to shut down the gas supply if outlet pressure exceeds a predetermined value. Underpressure (UPSO) the ability to shut down the gas supply if outlet pressure falls below a predetermined value Full capacity relief the ability to maintain downstream pressure under upset conditions by venting excess gas to the atmosphere Series 1200 regulators Capacity:2,000 SCFH (56.6 SCMH) Inlet pressures:up to 125 psig (8.6 Bar) Outlet pressure range:3 S.C. to 5 psig (7.5 to 345 mbar) Connection sizes:1/2, ¾. 1 Available with overpressure shutoff and full capacity internal relief Sales Bulletin SB 8505 SB 8506 Series 1800C regulators Series 1800B2 regulators Capacity:2,500 SCFH (70.8 SCMH) Inlet pressures:up to 125 psig (8.6 Bar) Outlet pressure range:3.5 W.C. to 2 psig (8.7 to 138 mbar) Connection sizes:3/4, 1, 11/4 Available with overpressure shutoff, underpressure shutoff and full capacity internal relief Sales Bulletin SB 8510 Series 1800CPB2 regulators Capacity:10,200 SCFH (288.9 SCMH) Inlet pressures:up to 125 psig (8.6 Bar) Outlet pressure range:130 psig (69 mbar to 2.1 Bar) Connection sizes:3/4, 1, 11/4 Sales Bulletin SB 8520 Sales Bulletin SB 8530 Series 1800 PFM regulators Capacity:11,000 SCFH (311.5 SCMH) Inlet pressures:up to 125 psig (8.6 Bar) Outlet pressure range:2 to 30 psig (138 mbar to 2.1 Bar) Connection sizes:11/2, 2 threaded; 2 flanged Available with overpressure shutoff Sales Bulletin SB 8551 Series 1800 regulators Capacity:20,000 SCFH (566.4 SCMH) Inlet pressures:up to 150 psig (10.3 Bar) Outlet pressure range:3.5 W.C. to 5 psig (8.7 to 345 mbar) Connection sizes:11/2, 2 threaded; 2 flanged Available with overpressure shutoff, underpressure shutoff and full capacity internal relief Sales Bulletin SB 8540 Connection sizes:11/2, 2 threaded; 2 flanged Available with overpressure shutoff and underpressure shutoff Sales Bulletin SB 8540 Series 3000 regulators Capacity:80,000 SCFH (2265.6 SCMH) Inlet pressures:up to 30 psig (2.1 Bar) Outlet pressure range:1 to 30 psig (69 mbar to 2.1 Bar) Connection sizes:11/2, 11/2, 2 threaded; 2, 3, 4 flanged Sales Bulletin SB 8535 Axial Flow Valves Capacity:37,000,000 SCFH (1,047,840 SCMH) Inlet pressures:up to 1480 psig (102.1 Bar) Outlet pressure range:5 W.C. to 600 psig (12 mbar to 41.4 Bar) Connection sizes:2, 3, 4, 6, 8, 12 flanged The American Meter Axial Flow Valve can be used for pressure regulation, overpressure relief, flow control or as an on/off valve. The control element is an elastomer sleeve which expands or contracts depending on the pressure differential and depending on the pilot used, the APV can provide a variety of output pressure ranges. Sales Bulletin SB 9509 SB 9510 Axial Flow Valves SB 9520 Axial Flow Valves for low differential pressures SB 9525 Accessories SB 8545 Pilot regulators Radial Flow Valve Capacity:3,200,000 SCFH (90,624 SCMH) Inlet pressures:up to 1480 psig (102.1 Bar) Outlet pressure range:1psig (?) to 600 psig (7mBar to 41.4 Bar) Connection sizes:2, 3, 4, 6 flanged Radial flow valves provide pressure regulation, overpressure relief, flow control, or on/off control. These units provide high capacity in a singleported valve, with positive lockup, and easy access to all internal components. With an optional inspirator block, they begin to throttle at just 1.5 psid, making them effective for lowdifferential applications. Sales Bulletin SB 9530 Universal Safety Shutoff Assembly (Not shown) The Universal Safety Shutoff Assembly (USSA) is fitted to a Series 1200B or Series 1800 service regulator as a replacement for existing shutoffs. It senses the outlet pressure of the regulator and, in the event of an over or under pressure condition, it operates to shutoff the pressure at the inlet side of the regulator orifice. The USSA is designed to meet standards in North America and is available in over pressure, under pressure, or over/under pressure versions. Sales Bulletin SB 8556 Capacity:2,500 SCFH (70.8 SCMH) Inlet pressures:to 150 psig (10.3 Bar) Outlet pressure range:3.5 W.C. to 2 psig (8.7 to 138 Mbar) Connection sizes 3/4, 1, 11/4 Available with overpressure shutoff and full capacity internal relief Sales Bulletin SB 8515 Series 2000 regulators Capacity:20,000 SCFH (566.4 SCMH) Inlet pressures:up to 150 psig (10.3 Bar) Outlet pressure range:0.5 to 15 psig (34.5 mbar to 1 Bar) Series 1200

Pressure Regulation and Control continued Series 1800C Series 1800B2 Series 2000 Series 1800CPB2 Series 3000 9 Series 1803PFM Axial Flow Valve Series 1800 Radial Flow Valve

Overpressure Shutoff Safety Devices Overpressure shutoff valves are placed upstream of a pressure regulator. In the event of a regulator failure, these units provide rapid automatic and positive shutoff of gas service, protecting the meter, regulator and other equipment. OPSO shutoff valves Inlet pressure: up to 125 psig (8.6 Bar) Shutoff pressure ranges:14 W.C to 20 psig (35 mbar to 1.4 Bar) Connection sizes: 11/2, 2 threaded; 2 flanged Sales Bulletin SB 8555 Series 100 slam shut valves Inlet pressure: up to 235 psig (16.2 Bar) Shutoff pressure ranges:14 W.C to 87 psig (35 mbar to 6 Bar) Connection sizes: 2 threaded; 2, 3, 4 flanged Sales Bulletin SB 8575 OPSO Sensing line Overpressure Shutoff valve Series 100 Slam shut valve Regulator Filters 10 American Meter filters effectively remove dirt, pipe scale and other particulate from gas lines, protecting meters, regulators and gasoperated equipment. Flanged filters are designed for largevolume applications. Standard elements remove particulate down to 10 microns (elements are also available in 25 microns). Units are available with 2, 3, 4, 6, 8, 10 and 12 connections, and maximum working pressure ratings of 175, 275, 720 and 1440 psig (12.1, 19.0, 49.6 and 99.3 Bar). Threaded filters are designed for lower capacity applications and can be supplied with ¾, 1, 11/2 and 2 connection sizes. Filter elements are rated at 5 microns and maximum working pressure is 160 psig (11.0 Bar). Pilottype filers, with pressure ratings to 1000, (69.0 Bar) (1440) psig and relative low capacities are used for protection of pilottype pressure regulators where particulate can cause upsets in system pressure. These units have a ¼ connection and a filter element rated at 5 microns. Sales Bulletin SB 12520 SB 12521 Flanged Filters NPT/BSP Screwed Filters Pilottype Filters

Meter Accessories Remote volume pulser The remote volume pulser (not shown) will provide a contact closure pulse train from meter indexes for transmission of volume and flow data to remote display devices such as the American Flow rate indicator and volume totalizer. Data Bulletin TDB 6663 Flow rate indicator / Volume totalizer This unit will interface with all meter and instrument pulsers and provide a remote display of flow rate and total volume. It has a 12 K ohm input impedance and will operate with unpowered switch closures or accept voltages up to 50 V. The unit can also be used as a fixed factor correction device. Sales Bulletin SB 6505 Meter Indexes Replacement indexes are available in either the traditional circlereading or more convenient digitalreading format. An optional protective hardcoating is available that virtually eliminates yellowing. Meter Connections American Meter s meter connections are used to connect diaphragm meters to pipelines up to 2. A wide variety of swivel connections simplify connection into rigid piping systems. These units, available in straight and offset configurations, also adapt between different connections on pipe and meter. Insulated types protect against electrolytic corrosion by preventing induced currents from reaching pipelines. Sales Bulletin SB 3910 Meter Bars Meter bars prevent stress from being transferred from piping to a gas meter and simplify the installation of pressure regulators. The bas has a threaded connector for the meter outlet piping (3/4 or 1 ) and clamps around the outlet of the pressure regulator, providing a rocksolid installation. Usable with all 1200 series regulators in a 90º valve body configuration. Data Bulletin TDB 6565 Needle Valves These valves are used for applications such as orifice meter gage line connections, shutoff valves for pressure gages, odorizers, sampling devices and other high pressure control applications. Available in carbon steel or stainless steel (1/4 straight only) bar stock with nickelplated Finish on carbon steel valves, electropolish finish on stainless steel valves. Rated for working pressures up to 10,000 psi at 200ºF. Chemicallyresistant Vitron oring and Teflon backup ring stem design in ¼ and 1/2 sizes, and ¼ right angle versions. Data Bulletin TDB 11521 Needle Valves Flow Rate Indicator / Volume Totalizer Meter Indexes 11 Meter Connections Meter Bars

Automated Meter Reading Systems 12 The TRACE TM system provides automated meter reading through the use of shortrange radio signals sent to and received from a transponder installed on each meter. It has been designed to provide a system that can be installed in stages, with minimum disruption to current operations, while providing immediate payback on the investment. Initially, TRACE transponders can be installed only on hardtoread meters with data being collected with the same handheld terminals currently in use for manual meter reading. Since these meter reads are the most expensive in the system, TRACE provides an immediate increase in productivity, and in the accuracy of your billing data. Once these problems are solved, entire routes can be automated using a Mobile Interrogation Unit which fits into any car, van or truck. TRACE is fundamentally different from other mobile RF technologies. These systems broadcast a universal inquiry signal which triggers a response from every meter within range. This flood of data is difficult to manage and leads to errors and misreads which are often not discovered until the entire route is complete. TRACE, however, queries each meter individually and assures an accurate response from each meter. The Pantheon/TRACE software system provides the tools to strategically implement AMR at a level appropriate to your needs, with the flexibility to accommodate future growth. Pantheon/TRACE provides management of all meter reading functions and has the flexibility to migrate to complete enterprisewide information management. Route and customer account information from existing CIS/Billing systems is automatically transferred to the handheld terminals and read data is easily formatted and downloaded to CIS/Billing or virtually any external information system. The software features an intuitive Windows graphical interface, route management functions, and an extensive report library with a wizardstyle user interface. Transponder The TRACE transponder can be installed on virtually any gas meter in service today. The unit is a combination encoder and radio frequency transceiver. When the transponder receives an interrogation signal with its unique serial number, it transmits a 32bit data stream that includes the current meter reading, tamper detection status, and error detection code value. The transponder is powered by a lithium thionly chloride battery with a calculated life in excess of 12 years under normal pulseloading conditions. Data Bulletin PDB 14510 MiniMobile Interrogator (MMI) The MMI is a complete data retrieval and storage system for reading large numbers of meters. The suitcasesize unit will fit into any car, van, or truck and is completely portable from vehicle to vehicle. The MMI allows you to completely automate one or more meter reading route at a fraction of the cost of conventional mobile meter reading systems. The MMI uses Global Positioning System (GPS) to track transponder location. Data Bulletin PDB 14545 Vehicular Interactive Display (VID) The optional Vehicular Interactive Display is used with the MMI to maximize productivity of the AMR function. Vehicle location and the location of each transponder are displayed on a detailed electronic map. Each transponder is shown as a point of light. As a correct read is obtained for a transponder, it is deleted from the map. If a correct read is not obtained, the transponder location remains lit, allowing the operator to take immediate corrective action. This penbased computer display is based on longitude and latitude, and exclusive feature of the TRACE System. Universal Radio Frequency Interface (URFI) The Universal Radio Frequency Interface is an American Meter feature that allows utilities to reduce start up costs and training expenses while implementing automated meter reading. The URFI is a plugin adapter that will allow any current DOScompatible handheld data terminal to transmit and receive data from TRACE transponders. With the URFI, a utility s existing handheld terminals can accommodate both manual reads and transponderequipped meters, extending the return on investment made in this equipment. Data Bulletin PDB 14540 Short Range Programmer (SRP) The Short Range Programmer is a programming and diagnostic tool for TRACE transponders. The maximum range of the device is approximately four inches, which eliminate problems of nearby transponders replying unintentionally. Very low power consumption provides 24 hours of operating time for a single battery charge. The battery can be recharged from a vehicle cigarette lighter, or any external 12 V supply. Extremely easy to use, the SRP has a keyboard to enter the serial number and index reading of the transponder, for troubleshooting, or for programming new installations. The SRP will also detect pressure compensated transponders and display a menu of compensation factors that allows the operator to choose the correct option.

Pantheon Data Management Solutions Pantheon Data Management Solutions provide an enterprisewide software platform to perform functions currently segregated into separate SCADA, electronic measurement and automated meter reading systems. This extremely flexible client/server network services the needs of different departments within a utility via application workstations connected to a network. With Pantheon, a utility can gain control of all its current and future information needs with a single system, requiring only one support infrastructure. Because Pantheon will interface with legacy systems, it can be integrated into the enterprise in stages to improve productivity while minimizing disruptions in current operations. One of Pantheon s greatest advantages is its use of proven components. By preintegrating theses products, Pantheon is able to deliver a robust feature set, while minimizing risk, system integration costs and time to deployment. Pantheon combines a highspeed database engine, standard networking capabilities, popular user interface tools and industry standard programming languages into one integrated system that is optimized for energy applications. Because Pantheon is Windows NT based, it can be integrated with virtually any type of system or data formats required, as well as provide access to thirdparty applications. And, the system can be scaled to your needs, from a single user to hundreds of users on a Local or Wide Area Network. Data Acquisition Pantheon is capable of handling data from virtually any remote device or existing data collection system. Typical types of data that are easily accommodated include customer usage, historical information, audit trails, device configuration data bases, alarm conditions, data from bulletin board systems and virtually any other information source in a system Data Management and Storage Pantheon provides a proven, missioncritical data base system that uses an objectoriented data management scheme. The system will maintain configuration data, historical data, alarm and event logs in an opensystem configuration, with no need for proprietary storage techniques. The flexible storage capabilities inherent in the system allow data to be located where it is most needed, with the ability to scale the system to the particular enterprise. Data Communications Pantheon provides a TCP/IP network of client/server applications so that the system can be installed on any scale from a single user to hundreds of workstations connected by LAN s or WAN s. The system also provides the option of interconnections with an Internet Information Server and Remote Access Servers. The opensystem architecture provides the foundation for data exchange with other systems such as Facilities Management and Customer and Financial Information. Data Presentation Pantheon provides numerous solutions for presenting data in a meaningful fashion. Common objects such as folders, tables, and notebooks are used to present data with a natural look and feel. The system includes a number of graphical data views and advanced charting features commonly found in proprietary data acquisition systems. Pantheon s Advanced Graphics, Navigator, and Application Developer s Tool Kit modules, integrated with Windows NT Internet publishing capabilities and Microsoft Office interoperability provide an answer for every data presentation challenge. 13 Pantheon Base Architecture Diagram

14 Remeter Services The North American Services Group of American Meter was formed to meet the needs of the dynamic and changing North American natural gas utilities marketplace. With the mandate to develop and provide complete valueadded services within the United States and Canada, the North American Services Group brings together the measurement, control and information systems expertise of both the American and Canadian Meter group of companies. North American Services Group offers a complete Remeter: program for all makes and types of aluminum case, diaphragmtype meters; Reverify, Reverify and Adjust, Refurbish, RefurbishPlus and Remanufacture. Reverify The reverification program is designed to provide utilities with a viable in/out or pass through test. Incoming meters first receive a visual inspection, focused upon identifying and removing any meters with obvious signs of casting damage, severe corrosion, index damage, etc. A theft awareness inspection is also performed at this point. Meters passing these integrity inspections are then processed to completion, primed and finish painted, and have a new index box installed. Meters which fail the reverification program are documented as to the cause of failure and can, at the customer s discretion, be condemned, returned, or if suitable, processed under one of the other Remeter programs. Reverify and Adjust This program provides all of the processes and testing included in the Reverify program plus the additional services of proving and adjusting the meter to customer specifications using the latest sonic nozzle proving systems. Refurbish The Refurbish program is designed to provide a detailed and complete abovethetable repair of residential and commercial diaphragmtype gas meters. All critical wear parts affecting measurement accuracy and all pressure retaining components are replaced with OEM or OEMequivalent parts. In addition, the meters undergo a number of processes, including all quality assurance checks performed In Reverification. Meters are also pressure tested in accordance with normal operating pressures. For residential and 400series meters, refurbishing is restricted to meters no more than twenty years old. Because of the more severe service life and load profile of commercial meters above the 400 class is restricted to meters no more than fifteen years old. RefurbishPlus The North American Services Group RefurbishPlus program will meet the needs of utilities wishing to have a level of belowthetable work performed. OEM or OEMequivalent parts are used and completed meters carry a oneyear warranty. All parts and processes in the Refurbish program are included plus work belowthetable. In addition, meters are pressure tested to badged working pressures. Residential meters and 400series meters up to thirty years old are candidates for the RefurbishPlus program. With programs ranging from reverification to complete remanufacturing, North American Services Group can provide complete cradletograve meter management services.

Remeter Services continued Remanufacture Remanufacturing involves the complete tear down of diaphragm meter to the aluminum core casting components. These castings are then remanufactured into current production meters. Because of the extensive nature of the work performed, the Remanufacture program is limited to American Meter diaphragm meters. Residential meters of applicable vintage are stripped down to the core casting and remanufactured using the dame manufacturing techniques, processes and quality assurance criteria used in the production of brand new meters. All internal components, including the valve seat, are replaced. When these meters are returned to the customer, they meet the specifications of new American Meter or Canadian Meter residential products and carry the same applicable warranties. For American and Canadian Meters class 400 and larger, all parts with the exception of valve seats are replaced. Like residential products, these meters meet the same manufacturing and quality criteria as new meters and carry the same warranty. Remanufacturing offers an environmentally attractive option to scrapping old meters preserving a non renewable resource and conserving energy. Metrology Services The Metrology Department of North American Services Group provides meter shop consulting and complete meter proving services for the natural gas industry. These services include inhouse training programs, correlation studies and complete SNAP and bell prover calibration and certification. The Metrology Department also provides proving equipment and accessories, including sonic nozzle provers with the capability of testing flows from 25 CFH up to 14,000 CFH as well as associated equipment for bell provers. North American Services Group also offers a program where these proving devices can be maintained and calibrated through service contracts. These programs have been developed to provide utility companies with a high quality, costbeneficial meter service option, either as an outsource facility to handle excess meter shop capacity or as an alternative to the traditional utilityowned and operated meter shop. In all cases, meters are processed using stateoftheart assembly and testing techniques and programs are clearly and completely identified and consistently performed. 15 The Metrology Department is equipped with a full range of bell and sonic nozzle provers capable of verifying flow rates from 25 to 14,000 CFH. With curbside proving programs, North American Services Group saves utilities the time and expense of pulling meters from service in order to prove them.

Test Equipment 16 SNAP Sonic Nozzle Auto Prover SNAP combines stateoftheart electronics with precisely machined sonic nozzles to provide unparalleled speed and accuracy in gas meter proving. SNAP provers: Dramatically increase productivity by reducing proving time Provide bell prover accuracy with better repeatability Eliminate the need for environmental controls Automate data collection and reduce operator errors Occupy about ½ the space of a bell prover Accommodate all meter brands Sales Bulletin SB 6557 SNAP/Bell interface kit This kit provides a convenient way to verify the accuracy of a SNAP prover with a reference or Q.C. prover. With the kit, you simply connect the SNAP to any 2 ft. or 5 ft. manual bell prover and compare the SNAP s proof to the bell. The kit eliminates the need for a reference (Green Hornet) meter. Sales Bulletin SB 6556 Sonic Flow Nozzles By passing gas or air through a sonic nozzle and meter and using a stopwatch to determine the time needed for the meter to register the volume, the meter proof can be calculated. For test pressures from 3.6 to 1000 psig (24.8 mbar to 69.0 Bar) and flow rates to 6000 SCFH (169.9 SCMH) of gas. Sales Bulletin SB 6640 Dry test meter These meters are used for extremely accurate measurement of low volumes of any gas that is unsaturated with water vapor. Volume is read on a large 6 circular dial with sweep hand and 4 totalizing hands. Units are available with dial subdivisions as small as 0.001 CF for very lowvolume measurement. Sales Bulletin SB 7510 Wet test meter These laboratory instruments are extremely precise positive displacement meters which are individually calibrated under controlled conditions. Using a liquid sealed rotating drum as the measuring element, these meters provide large, easytoread dials with subdivisions as low as 0.0005 CF. Models available calibrated in CF or liters. Sales Bulletin SB 7520 Bell Mate proving system This encoderbased system provides consistent and repeatable proving results of + 0.15%. On the fly testing eliminates errors due to changes in flow rate and pressure during the test cycle, and an optical pickup eliminates errors from manual scale readings. The system can interface with 2, 5, 10 and bells, and display meter performance in accuracy, proof or percent of error. Sales Bulletin SB 6577 SNAP ll and lll (Series ll shown) Bell Mate (Proving system) Dry Test Meter Wet Test Meter Sonic Flow Nozzles

Guide to Other Gases The meters in this catalog may be used to measure a wide variety of gases in addition to natural gas. When using a diaphragm meter, you must account for the fact that the maximum capacity of the meter will Fg= vary with the specific gravity of the gas being measured. To accuracy size a diaphragm meter, the rated capacity must be multiplied by a capacity conversion factor (Fg) S.G. of gas on which rated capacity is based Since capacity data for American meters is based on natural gas, the following table includes capacity conversion factors which can be used to convert from natural gas to the specific gas shown. For example, the conversion factor for nitrogen is: Fg= Fg= S.G. of natural gas S.G. of nitrogen 0.60 0.97 S.G. of gas to be measured Fg= 0.79 Gas Specific Gravity (S.G.) Table of Measurable Gases Specific Gravity Conversion Factor (Fg) Aluminumcase Diaphragm Meters Turbine Meters Electronic Orifice Meter (AE5000EFM) Air 1.00 0.77 A A A Aliphatic Hydrocarbons (1) A A A Argon 1.38 0.66 A A A Butane 2.01 0.55 B B A Carbon Dioxide (dry) 1.52 0.63 A A A Carbon Monoxide (dry) 0.97 0.79 B B A Cyclopropane 1.45 0.64 B B A Ethane 1.04 0.76 A A A Ethylene 0.98 0.78 B A A Helium 0.14 1.15 (2) A A A 17 Hexafluropropylene(3) 5.18 0.34 B B A Hydrogen 0.07 1.15 (2) A A A Isobutylene 2.00 0.55 B B A Krypton 2.82 0.46 A A A Methane (pure) 0.55 1.04 A A A Natural Gas 0.60 1.00 A A A Neon 0.70 0.92 A A A Nitrogen 0.97 0.79 A A A Propane 1.53 0.63 A A A Propylene 1.48 0.64 B A A Sulfur Hexafluoride 5.11 0.34 B B A Xenon 4.53 0.36 A A A Category A: Under normal use, service life is comparable to natural gas service, depending on presence of contaminants. Category B: Service life varies according to deleterious effects of the specific gas and any contaminants. Notes: Do not use American meters to measure oxygen. For gases not listed and high purity gas applications, consult your local distributor or contact American Meter. 1. Conversion factor varies with the specific gravity of the particular gas. 2. For very light gases such as hydrogen and helium, the conversion factor method of calculating maximum capacity may result in excessive mechanical speeds of the meter. Therefore, the maximum conversion factor is calculated based on a specific gravity of 0.45 3. Also known as perfluropene.