1 4195K Gauge Pressure IndicatingControllersFisher 4195K Gauge Pressure Indicating controllersshow process Pressure and set point on aneasy to read process scale. The Controllers compareprocess Pressure with an operator adjusted set pointand delivers a pneumatic signal to a control element sothat process Pressure changes toward the set types are available for proportional only,proportional plus reset, proportional plus reset plus rate, and differential gap for on off control. 4195 Kcontrollers are used in industries where accuratepressure control and process monitoring are otherwise noted, all NACE references are toNACE MOUNTED CONTROLLERINTERIOR OF A Fisher 4195 KBME CONTROLLERN otes: 1 An internal cover protects the proportional band adjustment mechanism.
2 In this photograph, the cover has been removed. 2 controller components are indicated in figure 1W5663 14195K Pressure ControllersD200050X012 Product :4195 KAugust 20174195K Pressure ControllersD200050X012 Product :4195 KAugust 2017 2 SpecificationsAvailable ConfigurationsSee table 1 Process Sensor Range (Input Signal)Lower and Upper Range Limits: As shown in tables 2 and 5 Maximum Allowable Pressure :As shown in tables 2 and 5 Process ScaleStandard scale is matched to the range of the sensingelement, with exception of receiver scales available(1).Process ConnectionsStandard: 1/4 NPT internal stainless steel (all inputranges)Optional: 1/2 NPT adaptors (see table 3)Output SignalProportional, Proportional Plus Reset, orProportional Plus Reset Plus Rate Range: to bar (3 to 15 psig) or to bar (6 to 30 psig)Differential Gap Range: 0 to bar (0 to 20 psig) or 0 to bar (0 to 35 psig)Action.
3 Field reversible between direct (increasingsensed Pressure increases output Pressure ), and reverse (increasing sensed Pressure decreasesoutput Pressure ) actionSupply and Output Connections1/4 NPT internalSupply Pressure Requirements(2)See table 4 Supply Pressure MediumAir or non-corrosive Natural GasRemote Set Point Pressures to bar (3 to 15 psig) or to bar (6 to 30 psig)Construction MaterialsSee table 6 controller AdjustmentsProportional Band: 5 to 500% of process scale spanReset: Adjustable from to more than 74 minutesper repeat (from 100 to less than repeats perminute)Rate: Adjustable from 0 to 20 minutesDifferential Gap Controllers : Adjustable from 5 to100% of process scale spanSet Point: Adjustable from 0 to 100% of the scale spanController PerformanceRepeatability: of output spanDead Band: Less than of process scale spanTypical Frequency Response.
4 Hertz and 90 degreephase shift with m (10 feet) of mm (1/4 inch)tubing and 1639 cm3 (100 cubic inch) volumeSteady State Air Consumption(3)(4) to Bar (3 to 15 Psig) m3/hr ( scfh) to Bar (6 to 30 Psig) Output: m3/hr ( scfh)Operative Ambient Temperature Limits(2)(5)-40 to 71 C ( 40 to 160 F)(continued)Table of ContentsFeatures Features of Operation Controllers andProportional-Plus-Reset-Plus Rate Controllers Gap Controllers Set Point Option Station Option Windup Option Feedback Option Information Pressure ControllersD200050X012 Product.
5 4195 KAugust 2017 3 Specifications (continued)Hazardous Area ClassificationComplies with the requirements of ATEX Group IICategory 2 Gas and DustMeets Customs Union technical regulation TP TC012/2011 for Groups II/III Category 2 equipmentII Gb c T*XIII Db c T*XHousingDesigned to NEMA 3 (Weatherproof) and IEC 529IP54 SpecificationsMountingController can be mounted on actuator, panel, wall, or pipestandApproximate kg (10 pounds)NOTE: Specialized instrument terms are defined in ANSI/ISA Standard - Process Instrument Consult your Emerson sales office or Local Business Partner for additional The Pressure /temperature limits in this document and any applicable code or standard should not be Normal m3/hr normal cubic meters per hour (m3/hr, 0 C and bar, absolute).
6 Scfh standard cubic feet per hour (ft3/hr, at 60 F and psig).4. Without auto/manual station. With auto/manual station add m3/hr ( scfh).5. Also use these temperatures for transportation and storage 1. Available ConfigurationsTYPENUMBER(1)MODESOPTIONSP roportional OnlyProportional Plus ResetProportional Plus Reset Plus RateDifferentialGapAnti ResetWindup(suffix letter F)RemoteSet Point(suffix letter M)Internal Auto/Manual Station(suffix letter E)4195KA4195 KAE4195 KAM4195 KAMEXXXX- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -XX- - -X- - -X4195KB4195 KBE4195 KBF4195 KBFE4195 KBM4195 KBME4195 KBFM4195 KBFME- - -- - -- - -- - -- - -- - -- - -- - -XXXXXXXX- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -XX- - -- - -XX- - -- - -- - -- - -XXXX- - -X- - -X- - -X- - -X4195KC4195 KCE4195 KCF4195 KCFE4195 KCM4195 KCME4195 KCFM4195 KCFME- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -XXXXXXXX.
7 - -- - -- - -- - -- - -- - -- - -- - -- - -XX- - -- - -XX- - -- - -- - -- - -XXXX- - -X- - -X- - -X- - -X4195KS4195 KSE4195 KSM4195 KSME- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -XXXX- - -- - -- - -- - -- - -- - -XX- - -X- - -X1. Reverse acting constructions are designated by the suffix letter R in the type Pressure ControllersD200050X012 Product :4195 KAugust 2017 4 Featuresn Easy Maintenance Simple design allows fast, easymaintenance and minimal spare parts Easy Adjustment Adjusting the set point, the zeroand span of the process pointer, and switchingbetween direct and reverse action are accomplishedquickly and without special tools.
8 Additionally, theset point and proportional band can be adjustedwith no interaction between the two Application Versatility Either a Bourdon tube orcapsular input element is available to control a widerange of positive pressures, vacuum pressures, orcompound Mounting Versatility A 4195K controller can bemounted directly on the actuator or it can mounton a pipestand, wall, or in a Vibration Resistance The simple design and lowmass of internal parts allow a 4195K controller towithstand the vibration levels encountered in mostplant High Visibility Display Two red pointers on a114 mm (4 1/2 inch) long, white on black scaleshow process Pressure and deviation from set pointat a glance.
9 Two other gauges monitor supplypressure and output Low Air/Gas Consumption The relay and nozzledesign reduces the steady-state consumption rateto as low as m3/hr ( scfh); less than the 6 scfh requirement set for the oil and gas industryby the US Environmental Protection Agency (NewSource Performance Standards Subpart OOOO,EPA HQ QAR 2010-0505).n Corrosion Resistance Tough, plastic housing resistssuch corrosive environments as chemical plants andthe salt spray atmosphere on an offshore oilplatform. Internal constructions are available toresist a corrosive supply Pressure FeaturesSimplified Relay MaintenanceA clean out wire provides a fast.
10 Easy means ofcleaning the relay primary orifice during Protection for the CaseA rubber plug in the plastic case pops out to relieveexcessive Pressure buildup inside the Direct/Reverse SwitchingController action can be switched from direct toreverse or vice versa by simply loosening the screws onthe proportional band cover and moving the cover outto rotate the proportional band knob to the desiredaction (see figure 1).Easy Mode ConversionConversion from proportional toproportional plus reset control requires the additionof a reset valve and two pieces of tubing.