Fisher 2500 and 2503 Controllers and Transmitters

1 2500 and 2503 Controllers and of Caged Cageless Mounted Mounted and Output Pressure Output controller or 2500T Adjustment ( Controllers Only) Adjustment ( Transmitters Only) Band Adjustment(Except Transmitters and 2503 Controllers ) Gravity Adjustment ( Transmitters Only) and Torque Tube the Amount of Suspended controller and 2500T and 2503 1. Fisher 2500 or 2503 controller /Transmitteron 249 Caged Sensor2500 OR 2503 controller /TRANSMITTER249 SENSORW8334 Principle of controller or 2500T controller / transmitter from Mounting controller / transmitter on the Bourdon Deadband Testing (2500 Controlleror 2500T transmitter Only) the Proportional ManualD200124X0122500 and 2503 Controllers /TransmittersJune 2022 Instruction ManualD200124X0122500 and 2503 Controllers /TransmittersJune 20222 IntroductionScope of ManualThis manual provides installation, operating, calibration, maintenance, and parts ordering information for 2500 and2503 pneumatic Controllers and Transmitters used in combination with 249 displacer manual does not include installation or maintenance procedures for the supply pressure regulator, sensor, or other that information, refer to the appropriate instruction manual for the other not install, operate, or maintain a 2500 or 2503 pneumatic controller / transmitter without being fullytrained and qualified in valve, actuator, and accessory installation, operation, and maintenance.

2 To avoidpersonal injury or property damage, it is important to carefully read, understand, and follow all contentsof this quick start guide, including all safety cautions and warnings. If you have any questions aboutthese instructions, contact your Emerson sales office before instruments control or transmit the fluid level, the level of interface between two fluids, or the density (specificgravity). Each unit consists of a 249 displacer type fluid level sensor and a 2500 or 2503 pneumatic controller ortransmitter. Figure 1 shows a typical controller sensor to table 1 for ServicesEmerson Automation SolutionsEducational Services - RegistrationPhone: +1-800-338-8158E-mail: ManualD200124X0122500 and 2503 Controllers /TransmittersJune 20223 Table 1. SpecificationsAvailable Configurations(1) Fisher 2500 Series Controllers and transmittersinclude the following models:2500 Proportional only controller2500C Proportional only controller with indicator(see figure 10)2500R Reverse acting proportional only controller2500S Differential gap (snap acting) controller .

3 Seechanging controller action procedure and figure 152500T Transmitter2503 Differential gap controller withoutproportional valve; for applications requiring verylittle adjustmentInput SignalFluid Level or Fluid to Fluid Interface Level: From 0 to100% of displacer length standard lengths for allsensors are 356 mm or 812 mm (14 inches or 32 inches). Other lengths availabledepending on sensor Density: From 0 to 100% of displacement forcechange obtained with given displacer volume for displacers are listed in table Signal2500 controller and 2500T transmitter : to 1 bar(3 to 15 psig) or to 2 bar (6 to 30 psig)2500S and 2503 Differential Gap Controllers : 0 bar (0psig) when switched off and full supply [ or bar(20 or 35 psig) nominal depending on controlleroutput pressure range] when switched Ratio of Relay Diaphragms3:1 Supply Pressure DataSee table 3(2)Supply MediumAir or Natural GasSupply medium must be clean, dry, and noncorrosivePer ISA Standard maximum 40 micrometer particle size in the airsystem is acceptable.

4 Further filtration down to 5micrometer particle size is recommended. Lubricantcontent is not to exceed 1 ppm weight (w/w) orvolume (v/v) basis. Condensation in the air supplyshould be minimizedPer ISO 8573-1 Maximum particle density size: Class 7 Oil content: Class 3 Pressure Dew Point: Class 3 or at least 10_C less thanthe lowest ambient temperature expectedMaximum Supply Pressure(2,3)3 bar (45 psig) to the controller or transmitter . Ifcontroller or transmitter is equipped with anintegrally mounted 67 CFR filter/regulator, typicalsupply pressure to the regulator is from bar (35psig) to 17 bar (250 psig), maximum. For supplypressures to the filter/regulator, refer to theappropriate regulator instruction State Air Consumption2500 Controllers and Transmitters (2500, 2500C,2500R, 2500S, and 2500T): See table 32503 controller : Vents only when relay is exhaustingProportional Band Adjustment (Proportional OnlyControllers)Full output pressure change adjustable over 10 to100% of displacer length(4)Differential Gap Adjustment (Differential GapControllers)2500S controller : Full output pressure changeadjustable from 20 to 100% of displacer length.

5 (4)2503 controller : Full output pressure changeadjustable over approximately 25 to 40% of displacerlength(4)Span Adjustment (2500T transmitter )Full output pressure change adjustable from 20 to100% of displacer length(4)Set Point ( Controllers only) or Zero (transmittersonly) AdjustmentFor proportional only Controllers or Transmitters ,level adjustment positions the set point or zero forthe fluid level, interface level, or displacer forcechange (density) within the displacer differential gap Controllers , level adjustmentsimultaneously positions both ends of the gap withinthe displacer length.(continued)Instruction ManualD200124X0122500 and 2503 Controllers /TransmittersJune 20224 Table 1. Specifications (Continued)PerformanceIndependent Linearity ( Transmitters only): 1% ofoutput pressure change for 100% : of output pressure change at 100%proportional band, differential gap, or spanRepeatability: of displacer length ordisplacement force changeDeadband (except differential gap Controllers (5)) of proportional band or spanTypical Frequency Response: 4 Hz and 90 degreephase shift at 100% proportional band with outputpiped to typical instrument bellows using meters(20 feet) of 1/4 inch tubingAmbient Operating Temperature Limits(3)For ambient temperature ranges and guidelines foruse of the optional heat insulator assembly, see figure2.

6 Relay temperature limits are:Standard Construction: 40 to 71_C ( 40 to 160_F)High Temperature Construction: 18 to 104_C (0 to 220_F)Typical Ambient Temperature Operating InfluenceOutput pressure changes per 10_C (50_F)change in temperature at 100% proportional bandwhen using a standard wall torque tube with 249sensorsHazardous Area Classification2500 and 2503 Controllers / Transmitters comply withthe requirements of ATEX Group II Category 2 Gasand DustEx h IIC Tx Gb Ex h IIIC Tx DbMaximum surface temperature (Tx) depends onoperating conditionsGas: T4, T5, T6 Dust: and Output Connections1/4 NPT internalMaximum Working Pressure (sensors only)Refer to the appropriate sensor instruction manualNOTE: Specialized instrument terms are defined in ANSI/ISA Standard - Process Instrument Controllers are field adjustable between direct or reverse action. The letter R in the type number indicates that the controller / transmitter shipped from the factory set for reverse action (see chang ing controller action procedures).

7 The letter C in the type number indicates that a pointer is attached to the torque tube shaft providing visual monitoring of torque tube Control and stability may be impaired if the maximum pressures are The pressure/temperature limits in this document, and any applicable standard or code limitation should not be These statements apply only to units sized to produce a full output change for a 100% level change at the maximum proportional band dial Adjusting the span of the differential gap controller is equivalent to adjusting the 2. Standard Displacer VolumesSensorStandard VolumeLitersStandard VolumeCubic Inches249, 249B, 249BF, 249BP, 249K, 249P, 249W249C, 249CP, (3)100(1) 60(2)120 80(3)1. For 249W, with standard 812 mm (32 inch) For 249W, with standard 356 mm (14 inch) With standard 305 mm (12 inch) flange face to displacer centerline dimension 3. Supply Pressure DataOUTPUT SIGNAL RANGESTANDARD SUPPLY ANDOUTPUTPRESSURE GAUGEINDICATIONS(1)NORMAL OPERATINGSUPPLY PRESSURE(2)AIR CONSUMPTION ATNORMAL OPERATINGSUPPLY PRESSUREMAXIMUMSUPPLY PRESSUREBarPsigMinimum(3)Maximum(4) to 1 bar (3 to 15 psig)0 to 30 scfh(5)27 scfh(5)3 bar (45 psig) to 2 bar (6 to 30 psig)0 to 60 scfh(5)42 scfh(5)3 bar (45 psig)1.

8 Consult your Emerson sales office about gauges in other Control and stability may be impaired if this pressure is At zero or maximum proportional band or specific gravity At setting in middle of proportional band or specific gravity If air consumption is desired in normal m3/hr at 0_C and bar, multiply scfh by ManualD200124X0122500 and 2503 Controllers /TransmittersJune 20225 Figure 2. Guidelines for Use of Optional Heat Insulator Assembly020406080 100 120 140 160 USE INSULATOR (CAUTION! IF AMBIENT DEWPOINT IS ABOVE PROCESS TEMPERATURE, ICE FORMATION MAY CAUSE INSTRUMENTMALFUNCTION AND REDUCE INSULATOR EFFECTIVENESS.)01020 18 1030 40 50 60 7071593500400300200100 4004008001100 20NO INSULATOR NECESSARYAMBIENT TEMPERATURE (_C)STANDARD controller OR TRANSMITTERAMBIENT TEMPERATURE (_F)HEAT INSULATORREQUIREDTOOHOTNOTE: FOR APPLICATIONS BELOW -29_C (-20_F), BE SURE THE SENSOR MATERIALS OF CONSTRUCTIONARE APPROPRIATE FOR THE SERVICE TEMPERATURE ( C)_PROCESS TEMPERATURE ( F)_020 40 60 80 100 120 140200010 20 18 1030 40 50 60 70105593500400300200100004008001100 20NO INSULATOR NECESSARYAMBIENT TEMPERATURE (_C)HIGH TEMPERATURE controller OR TRANSMITTERAMBIENT TEMPERATURE (_F)HEAT INSULATORREQUIREDTOOHOTPROCESS TEMPERATURE ( C)_PROCESS TEMPERATURE ( F)_18016080 90 USE INSULATOR (CAUTION!)

9 IF AMBIENT DEWPOINT IS ABOVE PROCESSTEMPERATURE, ICE FORMATION MAY CAUSE INSTRUMENT MALFUNCTION ANDREDUCE INSULATOR EFFECTIVENESS.)CV6190-EB1413 3 40 29 18100220 Table 4. Displacer and Torque Tube MaterialsPartStandard MaterialOther MaterialsDisplacer304 Stainless Steel316 Stainless Steel, N10276, N04400, Plastic, and Special AlloysDisplacer Stem, Driver Bearing,Displacer Rod and Driver316 Stainless SteelN10276, N04400, other Austenitic Stainless Steels, and Special AlloysTorque TubeN05500(1)316 Stainless Steel, N06600, N102761. N05500 is not recommended for spring applications above 232_C (450_F). Contact your Emerson sales office or application engineer if temperatures exceeding this limit are and 2503 controller / Transmitters work in combination with 249 displacer type sensors. The factory attaches thecontroller/ transmitter to the sensor, unless it is ordered using natural gas as the pneumatic supply medium, natural gas will be used in the pressure connections of the unitto any connected equipment.

10 The unit will vent natural gas into the surrounding atmosphere. WARNINGA lways wear protective clothing, gloves, and eyewear when performing any installation operations to avoid with your process or safety engineer for any additional measures that must be taken to protect against installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in thisinstruction not use sealing tape on pneumatic connections. This instrument contains small passages that may become obstructedby detached sealing tape. Thread sealant paste should be used to seal and lubricate pneumatic threaded ManualD200124X0122500 and 2503 Controllers /TransmittersJune 20226 WARNINGP ersonal injury or property damage may result from fire or explosion if natural gas is used as the supply medium andpreventive measures are not taken. Preventive measures may include, but are not limited to, one or more of the following:Remote venting of the unit, re evaluating the hazardous area classification, ensuring adequate ventilation, and theremoval of any ignition sources.