Emerson Fisher 4194 Instruction Manual

www.Fisher.comFisherr 4194HA, HB, and HC DifferentialPressure Indicating ControllersContents1. IntroductionScope of Manual 3...

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201410Process Pressure ConnectionsProcess pressures are piped to the connections on t

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201411Supply pressure must be clean, dry air or noncorrosive gas that meets the requi

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201412Section 3 3‐3‐4194HA Proportional‐Only ControllersAdjustments for 4194HA Contro

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201413Figure 3‐1. Location of Controller Parts and AdjustmentsDRIVE ARMLOCKING SCREWP

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201414Remote Set Point (suffix letter M) AdjustmentCAUTIONDo not manually move the se

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201415(0 to 15 psig). Then, at a proportional band setting of 100 percent DIRECT, the

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014161. Connect supply pressure to the supply pressure regulator and be sure it is

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201417D remote set point:a. See figure 2‐2 for the location of the remote set point

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201418Refer to figure 3‐1 for location of adjustments.1. Remove two screws (key 6) a

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014191. Remove two screws (key 6) and lift off the proportional band indicator cove

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20142Replacing Controller Parts 43...Replacing the Process Different

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201420This method should only be used if pressure is not available to drive the diffe

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201421The process differential pressure input element is connected to the process ind

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201422Section 44‐4‐4194HB Proportional‐Plus‐Reset Controllers And 4194HCProportional‐

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201423The white portion of the adjustment produces direct controller action. The blac

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201424When performing the checks, open loop conditions must exist. An open loop exist

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201425proportional band percentage from the equation below:ProportionalBandAdjustment

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201426If the prestartup checks or startup reveal faulty controller operation, perform

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20142715. If the error is greater than ±1 percent, repeat steps 3 through 14.16. Pe

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201428Flapper leveling screw numbers and adjustments are shown in figure 3‐1.Provide

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20142913. Adjust the proportional band to 100 percent direct action.14. Apply diffe

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20143Section 11‐1‐IntroductionScope of ManualThis instruction manual provides install

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201430Anti‐Reset Windup Valve (suffix letter F) CalibrationCalibration for the anti‐r

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014313. For a controller with manual set point, move the set point indicator to 50

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201432Pressure in the reset bellows opposes the action of the proportional bellows an

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201433Figure 4‐3. Schematic of Operation for Fisher 4194HC ControllerSET POINTINDICAT

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201434D Then, the low gain provided by the proportional action keeps the system stabl

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201435applies pressure to one side of the plastic tube and to the auto/manual switch.

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201436Figure 4‐6. Schematic of External Feedback Option47A0975-AA3342-1TORESETBELLOWS

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201437Section 55‐5‐MaintenanceInspection and MaintenanceController parts are subject

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201438Figure 5‐1. Maintenance GuideTroubleshootingIt the controller is not operating

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201439Table 5‐1. Troubleshooting ChartFault Possible Cause Check Correction1. Process

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20144DescriptionThe controllers described in this manual provide differential control

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201440Table 5‐1. Troubleshooting Chart (Continued)Fault Possible Cause Check Correcti

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201441Table 5‐1. Troubleshooting Chart (Continued)CorrectionCheckPossible CauseFault7

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201442Figure 5‐2. Changing Controller ActionW3439Replacing the Differential Pressure

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201443Properly support the unit before trying to separate the controller and differen

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201444Refer to the installation procedures when reinstalling the unit.NoteIn the foll

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014452. Tip the relay slightly toward the side of the case to clear output pressure

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014467. Reinstall the differential pressure unit using the proper procedures.8. Mo

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201447Figure 5‐5. Link LocationsLINK 4LINK 4 ADJUSTMENTLINK 2LINK 2 ADJUSTMENTLINK 3

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201448Figure 5‐6. Process Indicator AlignmentALIGNEDZERO ADJUSTMENTLOCKING SCREWMISAL

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014497. Adjust the length of link 2 by turning the adjusting screw (see figure 5‐7)

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20145Table 1‐1. SpecificationsAvailable ConfigurationsSee table 1‐2Input Signal (Diff

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201450Figure 5‐8. Link Number 3 AdjustmentLINK 3 ADJUSTMENTLINK 2 DISCONNECTW4192‐15.

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014514. For controllers with reset (4194HB controllers) or rate and reset (4194HC c

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201452Replacing the Proportional Band Adjustment Knob, Nozzle Assembly, and Set Point

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014535. Inspect the O‐ring on the relay nozzle tubing assembly (key 18) and replace

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201454Figure 5‐9. Proportional Band Knob and Set Point Beam DetailsE‐RING(KEY 27)RETA

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201455TABHOLEW3761Figure 5‐10. Proportional Band Adjustment KnobAlignmentFigure 5‐11.

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201456Replacing the Flapper Assembly and Flexure Pivot AssemblyNoteBefore starting th

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201457Figure 5‐12. Position of Link Number 4 AdjustmentScrewsW4195LINK 4 ADJUSTMENTSC

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20145826. Position the proportional band knob, nozzle pivot, and set point beam asse

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201459Replacing the Proportional or Reset BellowsNoteBefore starting the following pr

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20146Table 1‐1. Specifications (continued)Hazardous Area ClassificationComplies with

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20146016. Refer to steps 4 through 10 in the procedure for replacing link 4. If the

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20146122. Increase the process differential pressure very slowly until the output pr

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201462NoteBefore starting the following procedure, remove the controller from the cas

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201463Refer to figure 6‐1 (4194HB or 4194HC controllers, suffix letter F) for key num

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014647. The process indicator should point out 50 ±3 percent of the input scale ran

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201465Flapper leveling screw numbers and adjustments are shown in figure 3‐1. Provide

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014662. For a controller with manual set point, move the set point adjustment to 50

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20146718. Pressure the differential pressure unit or, if disconnected, position the

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20146812. If the differential pressure calculated in step 11 is incorrect for the ap

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201469Remote Set Point Assembly ReplacementUse the following procedures to replace th

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20147Table 1‐3. Process Sensor (Barton 199) Range and Pressure RatingsDIFFERENTIAL PR

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014703. Note where link A (key 116) is connected. Disconnect the link from the leve

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014716. Attach links A and B (keys 116 and 126) to the arms of the replacement pivo

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201472Link B1. Note where link B (key 126) is connected (figure 6‐3). Disconnect bot

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201473NoteThe adjustment arm of pivot A turns on a bushing at each end of the shaft s

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014741. Decrease remote set point pressure to the lower range limit.2. Loosen the

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014756. Repeat steps 1 through 4 until lower, middle, and upper indications are wit

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014765. Apply air pressure to the controller and check for leaks.6. Install the co

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014773. Position the closing plate gasket (key 306) and the closing plate (key 307)

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 2014783. Position the ball (key 279), the tube (key 278), and the ball seats (key 28

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201479Section 6 6‐6‐PartsParts OrderingWhenever corresponding with your Emerson Proce

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20148Section 2 2‐2‐Installation, Mounting, and Connections WARNINGTo avoid personal

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201480Key Description Part NumberNotePart numbers are shown for recommended spares on

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201481Key 46/47 Pressure Gauge(1)RANGEGAUGE MATERIALBrass SSTDual Scale Gauge0 to 30

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201482Key Description Part Number101 Indicator ass'yNoteThe part numbers listed

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201483Figure 6‐1. Controller Assembly DrawingsA5948B2351B2357CONTROLLER COMMON PARTSS

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201484Figure 6‐1. Controller Assembly Drawings (Continued)56A9752‐V Sht 249A0770‐AVIE

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201485Figure 6‐1. Controller Assembly Drawings (Continued)56A9752‐V Sht 3FFVIEW ESUFF

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201486Figure 6‐1. Controller Assembly Drawings (Continued)56A9752‐V Sht 556A9752‐V Sh

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201487Figure 6‐2. Process and Set Point Indicator Assembly with Differential Pressure

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201488Figure 6‐3. Remote Set Point Assembly36A6988‐CAPPLY LUB/SEALANTRemote Set Point

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201489Figure 6‐4. Process and Set Point Indicator Assembly (Manual Set Point)39A1126‐

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 20149NOTE: 1 LOW PRESSURE CONNECTION ON A BARTON 199DIFFERENTIAL PRESSURE UNIT.F

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201490Figure 6‐5. Auto/Manual Station48A2905‐A Sht 248A2905‐A Sh1 1SECTION A‐ASECTION

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201491Figure 6‐5. Auto/Manual Station (Continued)56A9752‐D Sht 4C0527-2SWITCHINGZONEI

Instruction ManualD200156X0124194HA, HB, HC ControllersSeptember 201492Key Description Part Number300 Clip, SST301 Lever spring seat, SST302 Lever spr