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2502 Series Controllers

Instruction Manual

Form 1446

November 2006

25

Key

Description

Part Number

19* Pressure Gauge (2 req’d)

Triple Scale

Brass

0-30 psig/0-0.2MPa/0-2.0 bar

11B8577X012

0-60 psig/0-0.4MPa/0-4.0 bar

11B8577X022

Stainless steel

0-30 psig/0-0.2MPa/0-2.0 bar

11B8583X012

0-60 psig/0-0.4MPa/0-4.0 bar

11B8583X022

Dual Scale

Brass

0-30 psig/ 0 to 2 kg/cm

2

11B8577X042

0-60 psig/ 0 to 4 kg/cm

2

11B8577X052

Stainless steel

0-30 psig / 0 to 2 kg/cm

2

11B8583X032

21* Cover Gasket, nitrile

1C919806432

22* Relay Gasket

Standard, chloroprene

1C897403012

High-temperature, silicone

1N873804142

23

Relay Base, aluminum

47A0950X012

24* Relay Base Gasket (not shown)

Standard, chloroprene

1C897303012

High-temperature, silicone

1N873904142

29

Drive-lok Pin, stainless steel

1C8989X0012

31

Shaft Clamp Screw, stainless steel

1B451435172

34

Pilot Relay

Standard

22B0463X012

High-temperature

22B0462X012

35

Level Adjustment Ass’y

10A8939X0A2

36

Proportional Valve Ass’y

10A9122X042

37

Pressure Regulator (Type 67CFR)

38A* Filter Gasket (not shown)

Standard, chloroprene

1C898603012

High-temperature, silicone

1N874004142

38B Spacer (not shown)

T21043T0012

38C* O-Ring

Standard, nitrile

1E591406992

High-temperature, fluorocarbon

1E5914X0062

39

Cap Screw (not shown), steel, pl (2 req’d)

1C197024052

40

Hex Nut, stainless steel

1L286338992

41

Screw, steel, pl, Type 2502C

and 2502FC (2 req’d)

16A6938X022

42

Machine Screw, stainless steel, (8 req’d)

1V7435X0022

43

Machine Screw, stainless steel (2 req’d)

1A3776X0012

44

Machine Screw, steel, pl (4 req’d)

1A5733X0012

45

Machine Screw, stainless steel (2 req’d)

1A5733X0012

47

Spring (not shown), stainless steel

1J423437022

49

Machine Screw, stainless steel (13 req’d)

1B7839X0012

50

Screen, stainless steel

0L078343062

51

Pointer Ass’y, Type 2502C and 2502FC,

stainless steel/brass, pl

1R2425X0012

53

Base Plate, aluminum

Type 2502C and 2502FC

1E873111992

54

Front Plate, aluminum

Type 2502C and 2502FC

1E873211992

55* O-Ring, (3 req’d)

Standard, nitrile

1D687506992

High-temperature, fluorocarbon

1N430406382

57* O-Ring (not shown)

Standard, nitrile

1E222606992

High-temperature, fluorocarbon

1N838706382

Key

Description

Part Number

58* Nozzle, stainless steel

1U639135132

59

Beam, steel, pl

1K873825072

60

Flapper, K93600 alloy

1J416241132

61

Flapper Base, stainless steel

1J416335032

62* Connecting Link, N04400

1L379641012

63

Sealing Screw, stainless steel

14A5721X012

64

Screw, stainless steel

24A5720X012

65* Bellows Ass’y, brass (2 req’d)

0.2 to 1.0 bar (3 to 15 psig)

14A5726X012

0.4 to 2.0 bar (6 to 30 psig)

14A5726X032

66

Level Set Arm, steel, pl

1J416425072

67

Operating Arm, steel, pl

1J416525072

68

Operating Arm Base, brass, pl

Types 2502 and 2502F

1J416614022

69

Level Set Pivot Pin, stainless steel

1J416735162

70

Pivot Base, steel, pl

19A9689X012

71

Spring Washer, stainless steel

1H885128982

72

Washer, stainless steel

Type 2502 (2 req’d)

1E8730X0012

Type 2502C and 2502FC (4 req’d)

1E8730X0012

74

Washer, stainless steel, (6 req’d)

61000580X12

75

Reset Tubing Ass’y, stainless steel (2 req’d)

19A1887X012

76

Proportional Band Tubing Ass’y, stainless steel 1J4170X0012

77* Bellows Frame Gasket (not shown)

Standard, chloroprene

1H265403012

High-temperature, silicone

1N873504142

78

Spacer (not shown), brass

1J619815122

79* Bellows Gasket (2 req’d)

Standard, chloroprene

1D397003012

High-temperature, silicone

1N873604142

80

Machine Screw, stainless steel, (4 req’d)

1V7435X0022

81

Machine Screw (not shown)

stainless steel, (2 req’d)

1P4373X0012

82

Machine Screw, stainless steel, (4 req’d)

1B2752X0022

83

Lock Washer, stainless steel (2 req’d)

61000810X12

84

Lock Washer, stainless steel

1C3162X0012

85

Cap Screw, stainless steel, not shown (4 req’d) 1A3816K0012

86

Machine Screw, stainless steel (2 req’d)

19A7151X022

87* Link Bearing (not shown)

stainless steel (2 req’d)

1L379546202

88

Machine Screw (not shown),

stainless steel, (4 req’d)

1J4159X0012

89

Machine Screw, stainless steel, (2 req’d)

1H8162X0012

91

RESET Restriction Valve Ass’y

Type 2502 and 2502C

19A4357X012

Type 2502F and 2502FC

19A4359X012

93

Machine Screw, stainless steel

1B8776X0012

94

Bellows Frame, aluminum

2H265308012

95

Bellows Frame Base (not shown), steel, pl

1J416025142

96

Bellows Screw, brass, pl (2 req’d)

1D3976X0012

97

Bellows Stud (not shown), brass

1H265814012

98

Spacer, zinc

1H265944012

99

Cross Spring, stainless steel (2 req’d)

1H266037032

100

Calibration Adjuster, zinc

2H266244012

101

Reversing Block, zinc

26A0975X012

180

Pipe Nipple (not shown) Type 2502F

and 2502FC, steel

1C559926232

181

Relief Tubing Ass’y, Type 2502F and

2502FC, stainless steel

13A2077X022

*Recommended spare parts

Содержание Fisher Level-Trol 2502 Series

Страница 1: ... Controller 15 Type 2502F Controller with Reset Relief Valve 17 Maintenance 18 Troubleshooting 18 Removing Controller from Sensor 18 Changing Mounting Method 20 Installing Controller on Sensor 20 Changing Proportional Reset or Differential Relief Valve 21 Testing Relay Dead Band 21 Changing Relay 21 TYPE 2502 CONTROLLER 249B SERIES SENSOR W8334 Figure 1 Type 2502 Controller Mounted on Type 249B Se...

Страница 2: ... Trol Controller as well as a variety of other products contact Emerson Process Management Educational Services Registration P O Box 190 301 S 1st Ave Marshalltown IA 50158 2823 Phone 800 338 8155 or Phone 641 754 3771 Fax 641 754 3431 e mail education emersonprocess com Note Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection us...

Страница 3: ...4 to 2 0 bar 6 to 30 psig output signal Maximum Supply Pressure 4 3 4 bar 50 psig Supply Pressure Consumption 5 At 1 4 bar 20 Psig Minimum 0 11 normal m3 h 4 2 scfh at proportional band setting of 0 or 200 percent Maximum 0 72 normal m3 h 27 scfh at proportional band setting of 100 percent At 2 4 bar 35 psig Minimum 0 2 normal m3 h 7 scfh at proportional band setting of 0 or 200 percent Maximum 1 ...

Страница 4: ...NO INSULATOR NECESSARY AMBIENT TEMPERATURE _C STANDARD CONTROLLER OR TRANSMITTER AMBIENT TEMPERATURE _F HEAT INSULATOR REQUIRED TOO HOT NOTE FOR SERVICE BELOW 29_C 20_F CONTACT FACTORY PROCESS TEMPERATURE C _ PROCESS TEMPERATURE F _ B1413 1 IL 0 20 40 60 80 100 120 140 200 0 10 20 18 10 30 40 50 60 70 93 593 500 400 300 200 100 0 0 400 800 1100 20 29 NO INSULATOR NECESSARY AMBIENT TEMPERATURE _C H...

Страница 5: ...or assembly A displacer longer than 813 mm 32 inches is crated separately A shorter displacer is crated with the sensor but is 1 4 18 NPT SUPPLY CONNECTION ADJUSTING SCREW DRAIN VALVE LOCKNUT 1 4 18 NPT OUTPUT CONNECTION VENT PRESSURE REGULATOR Figure 3 Pressure Connections not attached to the displacer rod Inspect the displacer and replace if it is dented A dent may reduce the pressure rating of ...

Страница 6: ...ge connections will normally be either 1 1 2 or 2 inch screwed or flanged Figure 5 shows the combinations With flanged connections use standard gaskets or other flat sheet gaskets compatible with the process liquid Spiral wound gaskets without compression controlling centering rings cannot be used for flanged connections Mount the cage by running equalizing lines between the cage connections and t...

Страница 7: ...t an erroneous output signal Since the displacer hangs inside the vessel provide a stillwell around the displacer if the liquid is in a state of continuous agitation to avoid excessive turbulence around the displacer Note Displacers used in an interface level application must be completely submerged during operation If displacers aren t completely submerged they will not calibrate or perform prope...

Страница 8: ...el connection The displacer may then be swung out horizontally for insertion into the vessel However once the sensor is installed and the displacer drops to a vertical position the displacer may not be capable of being withdrawn for servicing later Be sure there is another access to the displacer to permit swinging it to a horizontal position or to permit disconnecting it from the displacer rod W0...

Страница 9: ... pressure and check all connections for leaks Prestartup Checks WARNING The following procedure requires taking the controller out of service To avoid personal injury and property damage caused by an uncontrolled process provide some temporary means of control for the process before taking the controller out of service Adjustment locations are shown in figure 9 unless otherwise indicted When perfo...

Страница 10: ...r Adjustments 1 Turn on the supply pressure and check that the controller supply gauge reads 1 4 bar 20 psig for a 0 2 to 1 0 bar 3 to 15 psig output pressure range or 2 4 bar 35 psig for a 0 4 to 2 0 bar 6 to 30 psig output pressure range If the pressure is incorrect loosen the locknut of the filter regulator figure 3 turn the adjusting screw clockwise to increase or counterclockwise to decrease ...

Страница 11: ...he unit would appear to be out of calibration and recalibration may be desirable See the Calibration Procedure on page 14 On a controller with level indicator the pointer should reflect the magnitude of the process variable for instance with liquid or interface level covering 50 percent of the displacer the pointer should be in the middle of the high low scale Slight plate adjustment might be nece...

Страница 12: ...sel For caged sensors pour the liquid into the cage For cageless sensors suspend the displacer to an appropriate depth in a liquid having a specific gravity equal to that of the process liquid If necessary use water for wet calibration in the shop However this procedure requires compensation for the difference between the specific gravity of the water and that of the process liquids For example as...

Страница 13: ...ondition of liquid level or specific gravity solve the following equation Ws Wd 0 0361 V SP GR where Ws Total suspended weight in pounds should never be less than 0 5 pounds For a unit with a horizontal displacer make sure the center of gravity of the substitute weight is where it would be on the actual displacer Note For liquid level control only simulate the lower range limit of the input span b...

Страница 14: ...Rotate the reset knob to 0 01 minutes per repeat 3 Rotate the proportional band knob to zero 4 Set the liquid at the minimum limit dry displacer 5 Turn the RAISE LEVEL knob to zero 6 Adjust the nozzle until output pressure is between 0 and 0 2 bar for a 0 2 to 1 0 bar signal range 0 and 3 psig for a 3 to 15 psig signal range or 0 and 0 4 bar for a 0 4 to 2 0 bar signal range 0 and 6 psig for a 6 t...

Страница 15: ...roller which uses a nozzle bellows and pneumatic relay to convert the rotary motion to a standard pneumatic output signal The output signal is sent to a final control element In conjunction with this control element 2502 249 Series controller sensors are capable of bringing the controlled variable back to a specific control point all the time The following descriptions show how the relay works in ...

Страница 16: ...OT BEAM AND FLAPPER CAM RESET VALVE PROPORTIONAL VALVE FIXED RESTRICTION EXHAUST END OF RELAY VALVE LARGE DIAPHRAGM OF ASSEMBLY SMALL DIAPHRAGM OF ASSEMBLY INLET END OF RELAY VALVE SUPPLY PRESSURE REGULATOR DIRECT ACTING DIAPHRAGM CONTROL VALVE VESSEL INFLOW PROPORTIONAL PRESSURE SUPPLY PRESSURE OUTPUT PRESSURE NOZZLE PRESSURE RESET PRESSURE EXHAUST NOZZLE Figure 10 Direct Acting Right Hand Mounte...

Страница 17: ...ssure into a reset bellows that opposes proportional bellows action This automatically dampens the effect of any proportional overcorrection by a set amount per time interval as long as there is a deviation from the control point Figure 10 illustrates these principles at work in a direct acting right hand mounted construction controlling liquid inflow to a vessel by means of a direct acting diaphr...

Страница 18: ...sult from fire or explosion if preventative measures are not taken such as adequate ventilation and the removal of any ignition sources Check with your process or safety engineer for any additional measures that must be taken to protect against process media Troubleshooting When troubleshooting open loop conditions must exist unless otherwise stated When monitoring the process variable use the mos...

Страница 19: ... 4 Flapper adjustment 2 4 Insure the flapper is not loose on the torque tube shaft and is centered on the nozzle 2 4 Replace or tighten flapper assembly as necessary and or center flapper on nozzle 2 5 Process variable changed 2 5 Insure the process variable has not changed from original calibration settings or displacer not design specific gravity of process 2 5 Change process variable back to or...

Страница 20: ...que tube arm in the opposite position according to the appropriate instruction manual 3 Check the desired control action to determine if it is also necessary to reverse the controller action The nozzle block and bellows tubing should be arranged in the proper position as shown in figure 13 4 Remove the RAISE LEVEL dial turn it over and install it in the desired position The arrow on it under the w...

Страница 21: ...band 2 To change the reset restriction valve assembly key 91 remove the two mounting screws key 182 located on the back side of case Install the replacement valve assembly and reconnect the tubing connections 3 Remove the differential relief valve assembly key 186 figure 14 by removing the two mounting screws figure 9 that anchor the valve to the manifold key 184 figure 14 Install the valve with t...

Страница 22: ...to the bellows frame Unscrew each bellows from the spacer key 98 being careful not to lose the O ring key 57 not shown from the spacer end of the bellows 3 Inspect each bellows and O ring and replace if necessary using an unpainted bellows for a 0 2 to 1 0 bar 3 to 15 psig range and a red bellows for a 0 4 to 2 0 bar 6 to 30 psig range Be sure to install the O ring at the spacer end of the bellows...

Страница 23: ...ponsibility for the selection use and maintenance of any product remains with the purchaser and end user Parts Kits Description Part Number Controller Parts Kit Contains keys 12 15 21 24 38 55 57 58 60 62 63 64 77 79 84 86 87 93 101 and 187 Standard Temperature R2502X00L52 High Temperature R2502X00H52 Relay Replacement Kit Contains keys 22 43 and the relay assembly Standard Temperature RRELAYX0L22...

Страница 24: ...2502 Series Controllers Instruction Manual Form 1446 November 2006 24 30A8942 H DOC 43A2366 H DOC 30A8943 H DOC Figure 14 2502 Series Controller Constructions ...

Страница 25: ...l 1U639135132 59 Beam steel pl 1K873825072 60 Flapper K93600 alloy 1J416241132 61 Flapper Base stainless steel 1J416335032 62 Connecting Link N04400 1L379641012 63 Sealing Screw stainless steel 14A5721X012 64 Screw stainless steel 24A5720X012 65 Bellows Ass y brass 2 req d 0 2 to 1 0 bar 3 to 15 psig 14A5726X012 0 4 to 2 0 bar 6 to 30 psig 14A5726X032 66 Level Set Arm steel pl 1J416425072 67 Opera...

Страница 26: ...2F and 2502FC 1D6875X0132 184 Manifold aluminum Type 2502F and 2502FC 23A2072X012 185 Manifold Nipple aluminum Type 2502F and 2502FC 13A2074X012 Key Description Part Number 186 Differential Relief Valve Ass y Types 2502F and 2502FC Standard 21A6447X0A2 High temperature 21A6447X012 187 Sleeve plastic 16A0976X012 188 0 Ring Types 2502F and 2502FC 1C8538X0132 215 Nameplate metal Pipe Plug Types 2502 ...

Страница 27: ...2502 Series Controllers Instruction Manual Form 1446 November 2006 27 ...

Страница 28: ... designs or specifications of such products at any time without notice Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use and maintenance of any product Responsibility for the selection use and maintenance of any product remains with the purchaser and end user EFisher Controls International LLC 1977 2006 All Rights Reserved ...

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