1008 Handwheel Instruction Manual

Instruction Manual Form 1500 July 1999

Type 1008

Type 1008 Handwheel Actuator Contents Introduction

................................. 1

Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installation

.................................. 2

Actuator Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Position Indicator Mounting . . . . . . . . . . . . . . . . . . . . 3

Maintenance

................................ 3

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Reversing Handwheels . . . . . . . . . . . . . . . . . . . . . . . 5

Parts Ordering Parts List

.............................. 6

.................................... 6 W0590-1/IL

Figure 1. Type 1008 Handwheel Actuator

Introduction

This instruction manual presents principle of operation, installation, maintenance, and parts list for the Type 1008 handwheel actuator (figure 1). Refer to separate instruction manuals for information about other equipment and accessories used with these actuators.

Only personnel qualified through training or experience should install, operate, and maintain a Type 1008 actuator. If you have any questions about these instructions, contact your Fisher Controls sales office or sales representative before proceeding.

Description The Type 1008 is a handwheel actuator for processes requiring a throttling valve that can be manually oper-

ated and set. The Type 1008 handwheel actuator is available in sizes 30, 40, 50, 80, and 100, and can be mounted on Fisher Controls easy-e valves.

The Type 1008 handwheel actuator converts rotary motion of the handwheel to linear motion of the valve plug stem. Because the stem does not revolve, the valve plug contacts the same seating surface with each stroke. Sizes 40, 50, 80, and 100 include two thrust bearings to make rotation easier.

Turn the handwheel counterclockwise to open the valve regardless of valve plug action. All sizes of the Type 1008 handwheel actuator except size 100 are reversible following the Reversing Handwheel procedures.

D100318X012

Scope of Manual

Type 1008 Table 1. Specifications SIZE

YOKE BOSS DIAMETER

STEM DIAMETER

MAXIMUM STEM LOAD

MAXIMUM TRAVEL

APPROXIMATE WEIGHT

Inches

mm

Inches

mm

Pounds

N

Inches

mm

Pounds

kg

30

2-1/8

54

3/8

10

1650(1)

7340

3/4

19

15

6.8

40

2-13/16

71

1/2

13

2950(1)

13,122

2

51

35

15.9

50

3-9/16

90

3/4

19

6650(1)

29,581

4

102

45

20.4

1

25

11,250(1)

50,042

1-1/4

32

17,000(1,2)

75,620

3

76

100

45 4 45.4

4

102

150

68 0 68.0

80 100

5

127

5

127

1-1/4

32

17,000(1,2)

75,620

7

178

2

51

56,000(1,2)

251,004

1. For S31600 (316 stainless steel) stems at 100_F (38_C).

2. Actuator limit.

Specifications Refer to table 1 for Specifications of the Type 1008 handwheel actuator. Refer to the actuator nameplate for information about a specific actuator.

5. Temporarily connect the valve plug stem to the stem connector assembly (key 24) and tighten the cap screws into the stem connector.

6. Use the handwheel (key 28) to move the valve plug into the fully open position, as indicated by the travel indicator disk (key 20) on the travel indicator scale (key 27).

7. Remove the stem connector assembly (key 24).

Installation The Type 1008 handwheel actuator can be installed horizontally, vertically, or at any orientation in between. However, if supplied with a Tejax position indicator (see figure 6), the actuator must be installed in a horizontal position.

When an actuator and valve body are shipped together as a control valve assembly, the actuator is normally mounted on the valve. Follow the valve body instructions when installing the control valve in the pipeline. If the actuator is shipped separately or if it is necessary to mount the actuator on the valve, perform the Actuator Mounting procedures.

Actuator Mounting Key numbers refer to figure 2 for size 30, figure 3 for sizes 40 and 50, figure 4 for size 80 or figure 5 for size 100.

1. Place the actuator on the body bonnet and tighten the yoke locknut or the actuator mounting hex nuts.

8. Size 30: Turn the handwheel (key 28) counterclockwise until the stem connector assembly (key 24) almost touches the top of the yoke; Sizes 40, 50, and 80: Turn the handwheel (key 28) counterclockwise as far as it will go; Size 100: Turn the handwheel (key 28) counterclockwise (for push-down-to-close valves) or clockwise (for push-down-to-open valves) as far as it will go.

CAUTION Incomplete engagement of both valve stem and stem screw assembly (key 38) or size 100 power screw (key 5) in the stem connector can result in stripped threads or improper operation. Be sure that the length of each stem clamped in the stem connector is equal to or greater than the diameter of that stem.

3. Adjust the travel indicator scale (key 27) so that the two screws (key 19) are centered in the slots.

9. Connect the valve plug stem to the stem connector assembly (key 24). Ensure that the bottom of the stem connector is touching or nearly touching the travel indicator disk (key 20). Tighten the stem connector (key 24) cap screws and lock the hex nuts (key 29) against the travel indicator disk (key 20) and stem connector.

4. Screw the hex nuts (key 29) onto the valve plug stem and place the travel indicator disk (key 20) onto the stem above the hex nuts. Adjust the nuts until the travel indicator disk (key 20) points to the closed position on the scale.

10. Rotate the handwheel until the valve plug seats.

Adjust the travel indicator scale (key 27) with two screws (key 19) so that the travel indicator disk (key 20) points to the closed position on the scale. Tighten the two screws.

2. Ensure the valve plug is on its seat.

2

Type 1008 Position Indicator Mounting

Lubrication

The Tejax position indicator is available on sizes 30, 40, and 50 Type 1008 handwheel actuators. It must be mounted in a horizontal position to function correctly.

To set the position indicator:

The interior parts of a Type 1008 handwheel actuator should be lubricated on a regular schedule with a quality gear lubricant. The interior parts should also be lubricated whenever handwheel rotation becomes difficult.

1. Seat the valve plug.

2. Loosen the four screws holding the dial indicating unit in place.

Disassembly

3. Turn the dial until both hands are at the ‘‘Shut’’ (Zero) position.

Parts are subject to normal wear and must be inspected periodically. The following procedure describes actuator disassembly for general inspection and replacement.

4. Tighten the four screws.

For Size 30: 1. Remove the stem connector assembly (key 24).

The long pointer indicates fractions of a turn; the small pointer counts the number of full turns. The position indicator requires no lubrication.

2. Unscrew the set screw (key 13) from the yoke (key 26) and remove the steel balls (key 33) through the threaded hole.

Note

Be careful not to lose the ball (key 33) and spring (key 34) as the handwheel is removed.

Maintenance Actuator parts are subject to normal wear and must be inspected and replaced when necessary. The frequency of inspection and replacement depends on the severity of service conditions. Because of the care Fisher Controls takes in meeting all manufacturing requirements (such as heat treating and dimensional tolerances), use only replacement parts manufactured or furnished by Fisher Controls.

3. Remove the handwheel (key 28) and stem screw assembly (key 38) from the yoke (key 26).

4. Unscrew the handwheel (key 28) from the stem screw assembly (key 38).

For Sizes 40 & 50: 1. Remove the stem connector assembly (key 24).

2. Unscrew the hex nut (key 14) and remove the washer (key 41) and lockwasher (key 42).

WARNING Avoid personal injury or damage to property from sudden release of pressure or uncontrolled process fluid. Before performing any maintenance operations: D Isolate the valve from the process, and relieve process pressure from both sides of the valve.

D Use lock-out procedures to be sure the above measures stay in effect while you work on the equipment.

Key numbers refer to figure 2 for size 30, figure 3 for sizes 40 and 50, figure 4 for size 80 or figure 5 for size 100.

Note

Be careful not to lose the ball (key 33) and spring (key 34) as the handwheel is removed.

3. Remove the handwheel (key 28) from the stem screw assembly (key 38).

4. Loosen the set screw (key 13) and unscrew the bearing retainer (key 44).

5. Remove the stem screw assembly (key 38), thrust bearings (key 2), and nut (key 43) from the yoke (key 26).

6. Remove the nut from the stem screw assembly (key 38) to reach the remainder of the parts.

For Size 80: 1. Remove the stem connector assembly (key 24).

3

Type 1008 2. Unscrew the cap screws (key 12) and remove the gear case cover (key 11).

3. Unscrew the two socket head cap screws (key 37) and remove the retaining flange (key 35).

4. Remove the bearing and gear retainer (key 4) and the stem screw assembly (key 38).

5. Remove the thrust bearings (key 2) and worm gear (key 3) from the stem screw assembly (key 38).

Note

Be careful not to lose the ball (key 33) and spring (key 34) as the handwheel is removed.

6. To remove the worm shaft (key 9): a. Remove the set screw from the handwheel cap (key 32).

Assembly For Size 30: 1. Replace the spring (key 34) and ball (key 33) in the yoke (key 26).

2. Screw the handwheel (key 28) on the stem screw assembly (key 38).

3. Position the grooves in the handwheel (key 28) and yoke (key 26) to mate, then replace the steel balls (key 33) in the yoke through the threaded hole.

4. Replace the set screw (key 13).

5. Refer to the Installation procedures for instructions on connecting the valve plug stem to the actuator stem screw assembly (key 38).

For Sizes 40 & 50: 1. Replace the thrust bearings (key 2) and bearing seat (key 45) on the stem screw assembly (key 38).

Screw the nut (key 43) on the stem screw assembly.

b. Unscrew the handwheel cap and remove the handwheel (key 28). c. Loosen the front (nearest to the threaded end of the worm shaft) set screw (key 10) and unscrew the front worm retainer (key 7). d. Remove the ball bearing (key 8) and the worm shaft.

For Size 100: 1. Remove the stem connector assembly (key 24).

2. Unscrew the cap screws (key 12) and remove the gear case cover (key 11).

3. Remove the bearing and gear retainer (key 4) and the stem screw assembly (key 38).

Note

Verify that the key (key 16) fits into the slot milled in the yoke (key 26) before reassembly.

2. Place the stem screw assembly (key 38) in the yoke (key 26).

3. Replace the bearing retainer (key 44), tightening so that the thrust bearings (key 2) move freely, then tighten the set screw (key 13).

4. Place the ball (key 33) in one of the indentations on the yoke, then place the handwheel (key 28) with the spring (key 34) over the ball.

5. Replace the lock washer (key 42) and washer (key 41) on the stem screw assembly (key 38) and tighten the hex nut (key 14).

4. Remove the thrust bearings (key 2) and worm gear (key 3) from the stem screw assembly (key 38).

6. Refer to the Installation procedures for instructions on connecting the valve plug stem to the actuator stem screw assembly (key 38).

5. To remove the worm shaft (key 9):

For Size 80:

a. Remove the retaining ring (key 17). b. Loosen the set screw (key 10) found on the handwheel (key 28) hub. c. Remove the handwheel (key 28). d. Loosen the set screw (key 10) and remove the front (nearest to the threaded end of the worm shaft) worm retainer (key 7), worm shaft (key 9), and front ball bearing (key 8).

4

1. If the worm shaft (key 9) was removed during disassembly: a. Replace the worm shaft with the ball bearing (key 8) and the front worm retainer (key 7). b. Adjust the worm retainer to eliminate end play (movement of the worm shaft along its axis) while allowing adequate movement. c. Tighten the set screw (key 10) on the front retainer.

Type 1008 2. Replace the ball (key 33), handwheel (key 28), and handwheel cap (key 32), then tighten the set screw in the handwheel cap.

3. Replace one of the thrust bearings (key 2) in the gear case (key 1) making sure that the bearing race with the smaller inside diameter is adjacent to the worm gear web.

4. Screw the worm gear (key 3) on the stem screw assembly (key 38) and place them in the gear case (key 1).

5. Install the other thrust bearing (key 2) on the worm gear (key 3), making sure that the bearing race with the smaller inside diameter is adjacent to the worm gear web.

6. Replace the bearing and gear retainer (key 4).

7. Install the retaining flange (key 35) making sure that the key (key 36) fits in the slot on the retaining flange.

8. Adjust the six set screws (key 13) to eliminate end play (movement along the axis of the stem screw assembly) in the thrust bearings, while allowing adequate movement.

9. Replace the gear case cover (key 11) and cap screws (key 12).

10. Replace the stem connector assembly (key 24).

11. Refer to the Installation procedures for instructions on connecting the valve plug stem to the actuator stem screw assembly (key 38).

For Size 100:

5. Install the other thrust bearing (key 2) on the worm gear (key 3), making sure that the bearing race with the smaller inside diameter is adjacent to the worm gear web.

6. Replace the bearing and gear retainer (key 4).

7. Replace the gear case cover (key 11) and fasten with the cap screws (key 12).

8. Adjust the six set screws (key 13) to eliminate end play (movement along the axis of the stem screw assembly) in the thrust bearings, while allowing adequate movement.

9. Replace the stem connector assembly (key 24).

10. Refer to the Installation procedures for instructions on connecting the valve plug stem to the actuator stem screw assembly (key 38).

Reversing Handwheels Refer to the previous Disassembly and Assembly sections in this manual for additional instructions, as needed.

To reverse Type 1008 handwheel actuators sizes 30, 40, or 50, substitute left– or right–hand screw assemblies (key 38) . The standard size 100 is not reversible. To reverse size 80, refer to figure 4 while performing the following procedures: 1. Loosen the three set screws (key 10) in the gear case (key 1) and handwheel cap (key 32).

1. If the worm shaft (key 9) was removed during disassembly:

Note

a. Replace the worm shaft with the ball bearing (key 8) and the front worm retainer (key 7).

Be careful not to lose the ball (key 33) and spring (key 34) as the handwheel is removed.

b. Adjust the worm retainer to eliminate end play (movement of the worm shaft along its axis) while allowing adequate movement. c. Tighten the set screw (key 10) on the front retainer.

2. Unscrew the handwheel cap (key 32) and remove the handwheel (key 28).

3. Remove the front worm retainer (key 7), ball bearing (key 8), and worm shaft (key 9).

4. Remove the back worm retainer (key 6) and ball bearing (key 8).

2. Replace the key (key 16), handwheel (key 28), and retaining ring (key 17), then tighten the set screw in the hub of the handwheel.

5. Screw the back worm retainer (key 6) and ball bearing (key 8) into the opening in the gear case (key 1) where the front worm retainer is located.

3. Replace one of the thrust bearings (key 2) in the gear case (key 1) making sure that the bearing race with the smaller inside diameter is adjacent to the worm gear web.

6. Replace the front worm retainer (key 7) and ball bearing (key 8).

4. Screw the worm gear (key 3) on the stem screw assembly (key 38) and place them in the gear case (key 1).

7. Replace the spring (key 34) and ball (key 33), handwheel (key 28), and handwheel cap (key 32).

8. Tighten the three set screws (key 10) in the gear case (key 1) and handwheel cap (key 32).

5

Type 1008 Parts Ordering Each actuator has a serial number stamped on the nameplate. Always mention this number when corresponding with your Fisher Controls sales office or sales representative regarding technical information or replacement parts. Also, reference the complete 11-character part number of each needed part as found in the following Parts List.

Key 15 16

17 18 18 19

20

Parts List Key 1

2

3

4

5 6 7 8

9

10 11

12 13

14

6

Description Gear Case Size 80, cast iron Size 100, steel Bearing, steel (2req’d) Sizes 40 & 50 Sizes 80 & 100 Worm Gear, bronze Size 80 Size 100 Bearing & Gear Retainer, brass (sizes 80 & 100)

Part Number

Power Screw, steel (size 100) Back Worm Retainer, steel (sizes 80 & 100) Front Worm Retainer, steel (sizes 80 & 100) Ball Bearing, steel (2req’d) (sizes 80 & 100)

20A2644X012 1H736124092 1H736024092

Worm Shaft, alloy steel Size 80 Size 100 Set Screw, steel (3 req’d) (sizes 80 & 100) Gear Case Cover, steel Size 80 Size 100 Cap Screw, steel (8 req’d) (size 100) Set Screw, steel Size 30 Sizes 40 & 50 Size 80 (6 req’d) Size 100 (6 req’d) Hex Nut, steel Size 30 Sizes 40 & 50 Size 100 (6 req’d)

3H735319042 30A2638X012

21 22 23 23 24

1D361399012 1H735499012 2H735512052 20A2585X012 1H735024392

1H735999012

2H735731092 30A2593X012 1A710328992 2J219219042 20A2584X012 1A544424052

1K908228992 1A344724182 1H734628992 10A2592X012 1A354024122 1A352424122 1A351124122

25

26

Description Grease Fitting, steel (all sizes) Key, stainless steel Sizes 40 & 50 Size 100

Part Number 1A700999012

Retaining Ring, steel (size 100) Cap Screw, steel (8 req’d) (size 100) Socket-Head Cap Screw, steel (6 req’d) (size 80) Screw, stainless steel (2req’d) Sizes 30 & 40 Size 50 Size 80 Size 100 Travel Indicator Disk, stainless steel Size 30, 3/8-inch (9.5 mm) stem Sizes 30 & 40, 1/2-inch (12.7 mm) stem Size 40, For use with Type 304 switch Size 50 Size 80 Size 100

1A911628992 1A544624052 1H2151X0012

Cap Screw, steel (2req’d) (size 100) Nameplate, stainless steel Nameplate Screw, steel (2 req’d) Drive Screw, SST (4 req’d) Stem Connector Assembly, 416 stainless steel Size 30 3/8-inch (9.5 mm) stem 1/2-inch (12.7 mm) stem (Design FY Valve) Size 40 Size 50 Size 80 1-inch (25.4 mm) stem 1-1/4 inch (31.8 mm) stem Size 100 1-1/4 inch (31.8 mm) stem 2-inch stem

1B848024052 18A5089X0A2 1J336928982 1A368228982

Cap Screw, steel Size 80 (2req’d) Size 100 (4 req’d) Yoke Cast iron Size 30 Size 30, For use with Type 304 switch Size 40 Size 40, For Design FY valve Size 40, For use with Type 304 switch Size 50 2-inch travel 4-inch travel Size 50, For use with Type 304 Switch Size 80 Standard boss Lower boss tapped Steel Size 100 5-inch (127 mm) boss 7-inch (178 mm) boss

1J343838992 1J464728992

1E793238992 1E831338992 1A343128982 1J669928982 1E793138992 1E807538992 1N253936012 1E832838992 1H736438992 10A2574X012

18A1681X012 18A1836X012 18A1668X012 18A1672X012 18A1692X012 18A1691X012 20A2568X012 20A2571X012

1A514724052 1A361524052

2R757319412 1U9332X0012 3J366319312 1P5524X0032 1U4382X0012 3J366419312 32A8364X012 1U9333X0012 3K407919042 3L921319042

40A2645X012 40A2646X012

Type 1008

A

A

SECTION AĆA

PARTS NOT SHOWN 46, 50, AND 22 30A6973-D / DOC

Figure 2. Type 1008 Handwheel Actuator Size 30 Key 27

Description Travel Indicator Scale, stainless steel Size 30 Standard For use with Micro Form valve Back Up Plate Well Test Size 40 7/16-inch (11 mm) travel 5/8-inch (16 mm) travel 3/4-inch (19 mm) travel 1-1/8 inch (29 mm) travel 1-1/2-inch (38 mm) travel 2-inch (51 mm) travel Size 50 5/8-inch (16 mm) travel 3/4-inch (19 mm) travel 1-1/8 inch (29 mm) travel 1-1/2-inch (38 mm) travel 2-inch (51 mm) travel 3-inch (76 mm) travel 4-inch (102 mm) travel Size 80 3/4-inch (102 mm) (19 mm) travel 1-1/8 inch (29 mm) travel 1-1/2-inch (38 mm) travel 2-inch (51 mm) travel 2-1/2-inch (64 mm) travel 3-inch (76 mm) travel 4-inch (102 mm) travel

Part Number

1E793638992 2N436138992 1E793638992 1P379938992

Key 27

28

1E807638992 1E807738992 1E808138992 1E808238992 1E808338992 1R444538982 1E833038982 1E833138992 1E833238992 1E833338992 1E833438992 1U372638982 1U372738982 1H745738992 1H745838992 1H745938992 1H746038992 1K511038992 1H746138982 1J245238982

29

Description Travel Indicator Scale, stainless steel (cont’d) Size 100 2-inch (51 mm) travel 3-inch (76 mm) travel 4-inch (102 mm) travel Handwheel Cast iron Size 30 Sizes 40 & 50 Sizes 40 & 50 w/Set Screw Handwheel Lock Size 80 Steel Size 100 12-inch (305 mm) 16-inch (406 mm) 20-inch (508 mm) Hex Nut, steel Size 30 3/8-inch (9.5 mm) stem (1 each) 1/2-inch (12.7 mm) stem (1 each) Size 40 (2req’d) Size 50 (1 each) Size 80 (2req’d) 1-inch (25.4 mm) stem 1-1/4 inch (31.8 mm) stem

Part Number

10A2606X012 1N538238992 1U372738982

1R757519412 2D358519052 2K667519052 3H734319052

20A2647X012 20A2648X012 20A2594X012

1A346524122 1A680324122 1A413224122 1A353724122 1A353724122 1A375424122 1A351124122 1C635224122 0W073524122

7

Type 1008 Key 29

30 31 32 33

34

35 36 37 38

39 40

Description Hex Nut, steel (cont’d) Size 100 1-1/4 inch (31.8 mm) stem 2-inch (50.8 mm) stem Hand Grip, steel (size 80) Hand Grip Bolt, steel (size 80) Handwheel Cap, cast iron (size 80) Ball, steel Size 30 (16 req’d) Sizes 40 & 50 (1 req’d) Size 80 (1 req’d) Spring, plated steel Size 30 Sizes 40 & 50 Retaining Flange, steel (size 80) Key, steel (size 80) Cap Screw, steel (size 80) (2 req’d) Stem Screw Assembly, steel Push-Down-To-Close/Left-Hand Thread Size 30 Size 40 1-1/2 inch (38 mm) travel 2-inch (51 mm) travel Size 50 2-inch (51 mm) travel 4-inch (102 mm) travel Push-Down-To-Open/Right-Hand Thread Size 40 1-1/2-inch (38 mm) travel 2-inch (51 mm) travel Size 50 Size 80, 3-inch (76 mm) travel Travel Stop, steel (size 80)

44

Machine Screw, plated steel (2req’d) (size 80) Washer, steel (sizes 40 & 50) Lock Washer, steel (sizes 40 & 50) Nut, stainless steel Push-Down-To-Close/Left-Hand Thread Size 40 1-1/2-inch (38 mm) travel 2-inch (51 mm) travel Size 50 2-inch (51 mm) travel 4-inch (102 mm) travel Push-Down-To-Open/Right-Hand Thread Size 40 1-1/2-inch (38 mm) travel 2-inch (51 mm) travel Size 50 Bearing Retainer, brass (sizes 40 & 50)

45

Bearing Seat, steel (sizes 40 & 50)

41 42 43

8

Part Number

0W073524122 10A2620X012 0U075624092 0U077424092 0W012819042 1L277828992 1A342732992 1A342732992 1K149127012 0D005916012 2H733725012 1H734425092 1H734732992

1R757731212 1F8795000A2 14B1485X012 1F8807000A2 12A8366X012

1F8794000A2 14B1488X012 1F8806X0012 2V3080X00A2 1J219024092

1H736528992 1A518925072 1A353828982

30A6972-A/DOC

Figure 3. Type 1008 Handwheel Actuator Sizes 40 and 50 1J365935132 24B1672X012

Key 46

1J366235132 12A8365X012

1J366135132 24B1800X012 1J366035132 1F658014012

47

1F879724092

51

48

Description Part Number Twin Speed Nut, stainless steel Size 30 1E793938992 Size 40 1E808438992 Size 40, For Design FY Valve 1E793938992 Size 50 1E833538992 Tejax Indicator Size 30 12B3922X012 Sizes 40 & 50 12B3923X012 Set Screw w/Set Screw Handwheel Lock, (not shown) (sizes 40 & 50) 1A951028992 Cover, aluminum (size 30) 11B5523X012

Type 1008

30A6911-A/DOC

Figure 4. Type 1008 Handwheel Actuator Size 80

9

Type 1008

50A2650-B/DOC

Figure 5. Type 1008 Handwheel Actuator Size 100

10

Type 1008

40A6974-A/DOC

Figure 6. Type 1008 Handwheel Actuator Sizes 40 and 50 with Tejax Position Indicator

11

Type 1008

easy-e, Fisher, Fisher-Rosemount, and Managing The Process Better are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc. All other marks are the property of their respective owners.

EFisher Controls International, Inc. 1990, 1999; All Rights Reserved

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

For information, contact Fisher Controls: Marshalltown, Iowa 50158 USA Cernay 68700 France Sao Paulo 05424 Brazil Singapore 128461 12 Printed in U.S.A.