2110 Temperature Controller - Chromalox

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2110 User Manual0037-75409PK498-1May, 2012CUL US CtSeLo FtinPo

Table of ContentsManual Sections1–Quick Setup.12–Introduction.23–Installation and Wiring.44–Adjusting Setpoint and Configuration.125–Controller and Alarm Operation.166–Replacing Output –Troubleshooting.22Illustrations1.1 Dip Switch Settings.11.2 Establishing the Set Point.11.3 Adjusting the Set Point.12.1 Front Panel Identification.22.2 Typical Application.32.3 Model 13.123.133.14Default Dip Switch Settings.4Removing Mounting Collars.5Mounting Dimensions.6Mounting the 2110.6Wiring Terminal Identification.7Thermocouple Connections with Shield.8Three-Wire RTD Connections with Shield.9Two-Wire RTD Connections.9Control Output Wiring–R1 and S0.10Control Output Wiring–R3.10Control Output Wiring–V0.10Control Output Wiring–S1 and S2.1190-260 VAC Instrument Power Connections.11Alarm Connections.114.14.24.34.44.54.64.74.8Establishing the Set Point.12Adjusting the Set Point.12Configuring 2110.13Configuring 2110.13Configuring 2110.13Configuring 2110.13Configuring 2110.13Configuring 2110.136.1 Replacing Output Module.18iii

Chromalox 2110

2110 Temperature ControllerSection 1—Quick SetupAfter the controller is properly wired into the system, the useronly needs to verify the sensor input and control type and adjustthe set point.Setting the Sensor and Control ModeAdjust the dip switches located on the bottom of the unit asshown in Figure 1.1. The factory settings are J, TC, F, and PI. Itis simpler to adjust the dip switch prior to mounting the 2110.KTC FPIJRTD CONOFJRTD CONOFKTC FPIFigure 1.1Dip Switch SettingsAdjusting the Set Point1. Apply power to the unit.2. To adjust the set point on the Chromalox 2110 Temperature Controller, press and hold the Set Point button (see Figure 1.2). TheSet Point light is illuminated.3. While still pressing the Set Point button, press either the orbutton to adjust the set point to the desired value (see Figure 1.3).Holding the or button increases the speed of the set pointchanges.Chromalox2110ChromaloxLoad FLoadAlarm CAlarmTempSet PointPointFigure 1.2Establishing the Set Point2110 F CTempSet PointPointFigure 1.3Adjusting the Set PointThe Controller is now operational with factory settings. For moreprecise control, set up of the alarm, etc., see Section 4 – Adjusting Set Point and Configuration.Section 1–Quick Setup1Chromalox 2110

Section 2—IntroductionDescriptionThe Chromalox 2110 Temperature controller offers simple setup,flexibility and control features in an attractive, compact design.The 2110 is housed in a rugged, plastic 1/4 DIN package thatonly requires four inches behind the mounting surface. Straightforward operation and easy-to-use control features are majorstrengths of the 2110 controller.Easy Three-Step Setup: The 2110 delivers exceptional processtemperature control. Your process is up and running after threeeasy setup steps: 1) Select the sensor and control type, 2) Hookup the system and 3) Select the desired temperature.NEMA 4X Front PanelConstruction forhosedown applicationsOutput LEDsIndicates control loadON and alarm statusDisplay(4 Green, 7-Segment LEDs)Actual process temperature displayedChromalox2110Load FAlarmTemp and Set Point LEDsIndicates actual or set pointtemperature is displayed CTempPointSet Point Button In Operation Mode, adjustsSet Point In Configuration Mode withthe or button, servesFigure 2.1as “Menu” buttonSet PointGreen LEDsIndicates F or Cselected for temperaturedisplay In Operation Mode,pushbuttons adjust SetPoint. In Setup Mode,pushbuttons increase/decrease MENU values.Front Panel IdentificationInspection andUnpackingYour Chromalox 2110 controller should arrive in good condition.Upon arrival, inspect the packaging for any visible damage.Unpack the controller and carefully inspect for product damagethat may have occurred during shipment. If the package or contents have been damaged in shipping, you must file a claim withthe delivery service. The delivery service will not accept a claimfrom the shipper.If not immediately installing the controller, store in a cool, dryenvironment in its original protective packaging. Temperatureextremes and excessive moisture can damage the instrument.Chromalox 21102Section 2–Introduction

2110 Temperature ControllerTypical ApplicationFigure 2.2 shows the 2110 in a typical application.Figure 2.2Typical ApplicationModelIdentificationBefore installation, please identify your controller model number.The model number appears on a label on the side of the housing.Use Figure 2.3 to identify the options in your controller.Model21101/4 DIN Controller, with Selectable Thermocouple or RTD InputsCodeControl OutputR1R3V0S0S1S2Relay, 1 Amp Form A, 120/240VacRelay, 20 Amps Form A, 120/240VacSolid State Relay Drive, 24Vdc @ 40maSolid State Relay, 1 Amp, up to 240 VacSolid State Relay, 5 Amps, up to 240VacSolid State Relay, 10 Amps, up to 240VacCode01Alarm Output (Kit Option)No AlarmAlarm Form “C” Relay, 5 Amps at 120Vac,2.5 Amps at 240VacCode0Add to Complete Part NumberCodePower Supply090-260Vac2110-R3100Typical Model NumberFigure 2.3Model IdentificationSection 2–Introduction3Chromalox 2110

Section 3—Installation and WiringSensor and ControlType SelectionSwitchesSet the Chromalox 2110 controller’s configuration via mechanicaldip switches, located on the bottom of the unit. Factory settings areJ, TC, F, and PI Control. Switches are easier to set before mounting.To change the switch settings, first disconnect all wiring and powerfrom the unit. Adjust switch settings as follows:SwitchFunctionAThermocoupleBInput TypeCTemperature UnitsDControl TypeSettingOptionsFactorySettingJ or KJTC or RTDTC F or C FON-OFF or PIPIIf input type is thermocouple, switch A selects either thermocoupletype J or K.Switch B selects input type thermocouple or RTD (resistance temperature detector). Note: If RTD is selected, switch A is ignored.Switch C selects temperature units F or C.Switch D selects either PI (Proportional-Integral) or ON-OFF control.JRTD CONOFKTC FPIJRTD CONOFKTC FPIFigure 3.1Default Dip SwitchSettingsChromalox 21104Section 3–Installation and Wiring

2110 Temperature ControllerMountingTwo mounting collars securely hold the 2110 controller in themounting hole. Remove these mounting collars before installation.Removing Mounting Collars1. To remove the rear collar, press the sides of the collar. Thisreleases holding tabs on the top and bottom of the collar.2. Slide the collar off the back of the unit.3. Slide the front collar off the back of the unitPress InHoldingTabsFront CollarRear CollarPress InFigure 3.2Removing Mounting CollarscontinuedSection 3–Installation and Wiring5Chromalox 2110

MountingcontinuedMount the 21101. Cut out a 1/4 DIN, 3.6-inch (92mm) square hole in the mounting panel.2. Insert the unit into the mounting hole as shown in Figure 3.4.3. Slide the front mounting collar onto the back of the controller.4. Slide the rear mounting collar onto the back of the controlleruntil the holding tabs securely engage with the holding tabslots in the controller housing (see Figure 3.4).5. Tighten the four rear collar mounting screws until the unit isheld firmly in the panel. CAUTION: Do not overtighten.The controller will now be held firmly in place.Chromalox2110Load(92)(12.7) FAlarm(101.6)(10)3.6(92) CTemp(90)Set PointPoint(101.6)(102)(92)Figure 3.3Mounting DimensionsHoldingTabsSlotsHoldingTabsFront CollarRear CollarFigure 3.4Mounting the 2110Chromalox 21106Rear CollarMounting ScrewSection 3–Installation and Wiring

2110 Temperature ControllerGood WiringPracticesSeparate wire into bundles—When planning the system wiring,separate wiring into functionally similar bundles, e.g. Power leads Sensor leads (if power leads must cross sensor leads, they shouldcross at a 90 angle) Output signal linesSeparate sources of electrical noise—Locate all sources of electricalnoise in your system, and separate these sources from the controlsystem, e.g. Motors Contacts SolenoidsElectrical noise can affect the function of any control system. Whendriving a contactor coil or other inductive load, an appropriate ratedAC snubber circuit is recommended (Chromalox Part No. 0149-01305).Connect before power is applied—Make all electrical wiring connections to the back of the controller before power is applied to the unit.!Comply with regulations—WARNING: All wiring practices must comply with local regulations. Failure to do so could result in damage tocontroller and/or personal injury or death from electrical shock.This instrument is intended for panel mounting and the terminalsmust be enclosed within a panel. Use National Electric Code (NEC)Class 1 wiring for all terminals except the sensor terminals.Check wiring decal—Check the wiring decal on the side of the unitto verify the model number. The wiring decal shows the wiring terminations. All wiring will be connected to the terminals on the backof the instrument case. Specific wiring instructions for different inputand output types are given in this section. See also Figure 3.5.Additional information—For sensor wiring practices, see “SensorInput Wiring”. For additional information on good wiring practice, request IEEE Standard No. 518-1982 from IEEE, 345 East 47th St., NewYork, NY 10017 or www.ieee.org.Sensor InputWiringOutputWiring(S1, S2)Figure 3.5Wiring Terminal IdentificationSection 3–Installation and Wiring7Alarm WiringCOMNONCInstrumentPower WiringOutput Wiring(R1, R3, V0, or S0)Chromalox 2110

Sensor Input WiringSensor Wiring NotesFor safety and best controller performance, Sensor leads (thermocouple and RTD) should not be run in thesame conduit as power wiring. Twisted pair, shielded wire is recommended for sensor connections. False temperature readings can occur if the sensor wire is exposedto electrical noise. Ungrounded thermocouples are recommended. Thermocouple extension wire, if required, must be the same typeas the thermocouple (i.e. if a Type K thermocouple is used, thenType K extension wire must be used.) Shielded thermocouple wire, if used, must have the shield grounded at one end only, preferably at the shield ground terminal on thecontroller as shown in Figure 3.6. Three-wire RTDs are recommended for greatest accuracy. Standard shielded copper wire is recommended for RTD extensions.Thermocouple InputsIt is important to observe polarity ( ,-) when connecting thermocoupleleadwires. ANSI color coding for the thermocouples used with thisinstrument areThermocoupleTypeMaterialPolarity ( )Polarity dMake thermocouple wiring connections to terminals as shown in Figure 3.6.TC TC -NOFigure 3.6Thermocouple Connections with ShieldChromalox 21108COMNCShield GroundSection 3–Installation and Wiring

2110 Temperature ControllerSensor Input WiringcontinuedThree-Wire RTD InputsIMPORTANT: When making the three-wire RTD input connection,make the resistance of all three extension leadwires equal by using the same gauge and same length of wire for optimum accuracy. A three-wire RTD will generally have two wires of the samecolor. Connect the same colored wires to the RTDL connections.Connect the alternate colored wire to the RTDH connection.Make three-wire RTD connections to terminals as shown in Figure 3.7.RTDHRTDLRTDLNOCOMNCShield GroundFigure 3.7Three-Wire RTD Connections with ShieldTwo-Wire RTD InputsIf using a two-wire RTD input, use heavier gauge leadwires toreduce leadwire resistance. Any leadwire resistance adds directlyto sensor resistance, thus adding error to the process temperature measurement. It is also necessary to jumper the two RTDLterminals on the instrument to complete a two-wire hookup.RTDHRTDLRTDLNOCOMNCFigure 3.8Two-Wire RTD ConnectionsSection 3–Installation and Wiring9Chromalox 2110

Control OutputWiringThe following figures show the proper control output wiring forthe various 2110 configurations.R1 (1 Amp Relay) and S0 (1 Amp, Solid State Relay)Output WiringWhen driving a contactor coil or other inductive load, an appropriately rated AC snubber circuit is recommended (ChromaloxPart. No. 0149-01305), as shown in Figure 3.9.120/240 FuseVACCOMNONCLoadNeutralSnubberFigure 3.9Control Output Wiring–R1 and S0R3 (20 Amp Relay) Output Wiring1/4” fast-on tabs are provided with the R3 output.NOCOMCOMNONC120/240 FuseVACNONCCOMNeutralLoadFigure 3.10Control Output Wiring–R3V0 (Solid State Relay Drive, 24Vdc, 40mA) Output Wiring 120/240VACAC NeutralFuse COMNONCSSR4115 LoadFigure 3.11Control Output Wiring–V0Chromalox 2110Section 3–Installation and Wiring

2110 Temperature ControllerControl OutputWiringcontinuedS1 (Solid State Relay, 5 Amps) andS2 (Solid State Relay, 10 Amps) Output WiringNote: 2110 model S2 has a fan. 2110 model S1 does not have a fan.FanCOMFuseLoadNONC120/240VACNeutralFigure 3.12Control Output Wiring–S1 and S2Instrument PowerWiringMake 120 or 240 VAC instrument power connections to terminalsas shown in Figure 3.13.120/240VACNeutralGroundNOCOMNCFigure 3.1390-260 VAC Instrument Power ConnectionsAlarm WiringThe Form C Relay Output is connected as shown in Figure 3.14.CAlarm OutNO NCCOMCOMNONONCNCFigure 3.14Alarm ConnectionsSection 3–Installation and Wiring11Chromalox 2110

Section 4—Adjusting Set Point and ConfigurationAdjusting theSet Point1. Set selection switches (see Figure 3.1).2. Apply power to the unit.3. To adjust the set point on the Chromalox 2110 Temperature Controller, press and hold the Set Point button (see Figure 4.1). TheSet Point light is illuminated and the set point value is displayed.4. While still pressing the Set Point button, press either the orbutton to adjust the set point to the desired value (see Figure 4.2).5. Release the Set Point button.Chromalox2110 FLoadAlarm CAlarmTempSet PointPointFigure 4.1Establishing the Set PointConfigurationChromalox 2110ChromaloxLoad2110 F CTempSet PointPointFigure 4.2Adjusting the Set PointWhile the 2110 default settings make it a simple setup controllerfor most applications, additional programmable menus can beconfigured through three front-panel pushbuttons.To access the user configuration menus,1. Press and hold the and buttons. After three seconds thedisplay will begin to toggle between the current security codeand LocH (LOCK). The Temp and Set Point LEDs will turn on.See Figure 4.3.2. Press the or button to adjust the value to the appropriatesecurity number (see Security Codes and Levels). Only thevalue is displayed during adjustment. See Figure 4.4.3. Press and hold the Set Point () button and press the orbuttons to scroll the configuration menus. The display willshow the name of the menu and then begin to toggle betweenthe name and the current value. See Figures 4.5 and 4.6.12Section 4–Adjusting Set Point and Configuration

2110 Temperature ControllerConfigurationcontinued4. Press the or buttons to adjust the value (only the value isdisplayed during adjustment). See Figure 4.7. The new valueis set when the or button is released.5. Press and hold the Set Point () button and press thebutton to advance to the next menu. See Figure 4.8. (Holdingthe Set Pointt () button and pressing the button movesthrough menus in the opposite direction.)Repeat steps 4 and 5 through the configuration menus.Chromalox2110ChromaloxLoad FLoadAlarm CAlarmTemp F CSet PointTempSetPoint2110Set PointSetPointFigure 4.3Adjust lockto 458Figure 4.4ChromaloxChromalox2110Load FLoadAlarm CAlarmTemp F CTempSet Point2110Set PointSetPointSetPointMove tonext menuFigure 4.5ChromaloxContinueuntil SP isdisplayedFigure 4.6Chromalox2110Load FLoadAlarm CAlarmTemp F CTempSet Point2110Set PointSetPointPointFigure 4.7 Adjust theset pointvalueFigure 4.8Continuethrough theconfigurationmenusExit ConfigurationTo exit configuration mode, press and hold both the andtons for three seconds to return to the operation mode.but-Note: If no buttons are pressed for three minutes while in userconfiguration mode, then the controller will exit user configuration and return to the operation mode.Section 4–Adjusting Set Point and Configuration13Chromalox 2110

Security Codes andLevelsTo limit access to the user configuration interface, security codesare assigned to different menu levels. Make security codes available to operators, maintenance crew, supervisors, etc. accordingto what function level you want for each group. Security Level Cis not recommended for most users. Gain access to configuration menus using the following codes.Security LevelSecurity CodeAAll ValuesConfigurationMenusAllows adjustment ofthe Set PointB458Basic menusC736Calibration menusThe following configuration menus can be accessed through theuser interface (see Configuration, page 12).MenuCodeChromalox 2110FunctionAdjustable FactoryRangeDefaultFunctionLochSecurity LockProcSecurityLevel0-999458AProcess Variable DisplayRead Only F or CN/AASPProcess Set Point AdjustSensorRange F or C0 FAPbProportional Band1 to SensorSpanMaximum F or C25BArStAutomatic Reset0.0 to 100.0Repeats/Min.0.1Displays the actual processtemperature.Adjusts the target processtemperature.Temperature range above/belowset point where proportionalcontrol is active. Mostapplications require a bandbetween 10 to 200 F. This menuis active only when the dipswitch is set to “PI”Control feature thatautomatically corrects for smalltemperature offsets that occurin proportional control. Thehigher the setting, the faster thecorrection occurs. A high settingcould cause overshoot duringstart-up. A low setting will notallow process temperatureto reach to set point quicklyenough. A setting of “0” turnsoff automatic reset. This menuis active only when the dipswitch is set to “PI”.14Section 4–Adjusting Set Point and Configuration

2110 Temperature ionCYCLCycle TimedbAdjustable FactoryRangeDefaultSecurityLevel.1 to 60.0Sec.OutputR1, R3 30 sec.S0, S1,S2, V0 1 sec.BOn/Off Dead Band1 to 100 For C5 FocBALtyAlarm TypeOff, Hi or LoOFFBALSPAlarm Set Point0 to 100 For C5BALdbAlarm Dead Band0 to 100 For C5BSPLLSet Point Lower LimitSensorRange F or CSpanLowBSPULSet Point Upper LimitSensorRange F or CSpanHighBoutlOutput Limit0 to 100%100BThe time for the output tocomplete ON to OFF toON cycle. Used only withproportional control. A fastcycle time provides bettercontrol, but can causepremature wear to contactor orother power switching devices.Magnetic contactors should notbe switched at less than a 30second cycle time. This menuis active when the dip switch isset to “PI”.The range above/below setpoint in which no control actiontakes place. Determines atwhat temperature the outputswitches ON and OFF. For a 5 Fdead band, 2.5 F is above andbelow the set point. This menuis active when the dip switch isset to “ONOF”.Select high or low alarm.Temperature level that willactuate the alarm.Difference of temperature fromalarm set point before an activealarm resets.Lower limit to which set pointmay be set without securitycode access.Upper limit to which set pointmay be set without securitycode access. This preventsan operator from setting theset point temperature to alevel which would damageequipment or process.Limits the percentage ofoutput that can be applied inproportional control.For calibration menus (CoFF, dFLt, & CALS), see Section 7–CalibrationSection 4–Adjusting Set Point and Configuration15Chromalox 2110

Section 5—Control and Alarm OperationControl OperationThe 2110 is shipped from the factory with PI (proportional/integral) control. Proportional control actually determines the percent of heat neededto control the process. The factory setting for the Proportional Band is25 F and the Automatic Reset (Integral) is set at 0.1 repeats/minute.These settings will control many processes without any changes to thecontroller. If the process is unstable or too sluggish, the ProportionalBand and Automatic Reset can be changed in the menu configuration.Tuning PI ControlAdjust Proportional Band The objective of the proportional band adjustment is to find the proportional band setting at which the processtemperature stabilizes and does not oscillate. If the temperature displayis oscillating, increase the Proportional Band (doubling the value) untilthe temperature display has stopped oscillating. To establish a quickresponse to control upsets, adjust for the smallest band that providesstable control (does not oscillate). Note: The temperature at this pointmay not be at set point, but will be stable.Adjust Automatic Reset (Integral) The Automatic Reset (Integral) automatically removes the offset between process temperature and setpoint. If the process is too sluggish in approaching set point, double theautomatic reset. Too much automatic reset will make a process unstable.Cycle Time Cycle time setting determines how often to switch theoutput to the heater. For example, if the cycle time is 1 second and the2110 needs a 75% output, the output will be on for 3/4 of a secondand off 1/4 of a second. Units with relay control outputs (R1 or R3) areshipped with a 30-second cycle time. Units with solid state relays orsolid state relay drives (S0, S1, S2, or V0) are shipped with a 1-secondcycle time.Alarm Operation(optional)Chromalox 2110An alarm relay output is optional on the 2110. An alarm can help protectthe process when a too high or too low temperature occurs.High Alarm: This alarm is a high absolute alarm that actuates when theprocess temperature is equal to or greater than the alarm set point. Forexample, if the high alarm set point is 500 F, the alarm will always actuate when the process temperature reaches 500 F.Low Alarm: The low absolute alarm actuates when the process temperature is equal to or less than the alarm set point. The low alarm features apower-up inhibit to prevent undesirable alarms during process start up.After the unit reaches control set point, the low alarm will respond.Alarm Dead Band: The alarm relay de-energizes (resets) when the temperature crosses out of the alarm dead band. For example, if the highalarm is set to 500 F and the alarm dead band is 5 F, the alarm conditionwill not reset until the process temperature reaches 495 F.To enable the alarm relay, select either high or low alarm type and set thealarm set point. An alarm condition is indicated when the Alarm light tothe left of the display illuminates. Alarm type, set point, and dead bandare selectable through the user configuration interface.16Section 5–Control and Alarm Operation

2110 Temperature ControllerSection 6—Replacing Output ModulesThe Chromalox 2110 Temperature Controller was shipped with theoutput modules installed as ordered. The 10A Solid State Relay and20A Mechanical Relay output cards control small cartridge heater orstrip heater loads directly, eliminating the need for a remote contactor or solid state relay. If a larger load is required, the 2110 can beconfigured with a 1A Pilot Duty Relay or Solid State Relay Drive.The 2110 may be optionally configured with a 5A/120V Alarm Relay.Alternate modules, configured with or without alarm, can be installedas needs change.Control and alarm outputs can be changed in the field.Module OptionDescriptionsOutput Module options are as followsLoad/SourcingDescriptionSpecificationR1 RelayForm A contact, SPST,N.O. 1.0 Amp at 120/240VAC resistive loadR3 RelayForm A contact, SPST,N.O. 20 Amp at 240VAC, 28 VDC resistiveloadV0 SSR24 VDC nominal at 40DrivemAS1 TRIAC1 amp continuous, 10Amp in-rush 120/240VACS1 Solid120/240 VAC, 5 Amp @State Power 40 C ambientControllerS2 Solid120/240 VAC, 10 Amp @State Power 40 C ambient with builtControllerin cooling fan mountedon rear of housingModule Installation!FactoryDefaultCycleTime30 sec.Part Now/o Alarm0149-27133Part No. w/Alarm0149-2714730 sec.0149-271320149-271461 sec.0149-271350149-271491 sec.0149-271340149-271481 sec.0149-271360149-271501 sec.0149-00022(Fan Kit)0149-00022(Fan Kit)WARNING: Remove power from the controller before changing theoutput module. Failure to do so could cause damage to controllerand/or personal injury or death from electrical shock.When handling output modules, be careful to guard the moduleagainst static discharge. Follow the steps below to remove an existing output module and replace it with a new module.Removal1. Remove power from the controller.2. Remove all terminal connections.Section 6–Replacing Output Modules17continuedChromalox 2110

Module Installationcontinued!3. Remove the back cover by lifting four housing clips on the controller. This releases the back cover. Then pull cover straight offthe controller.4. Gently pry around the sides to loosen and remove the module.Pull module straight out to avoid bending pin connections.WARNING: Do not remove module by the handling components onthe module board. This could damage the module.When removing an S2 output module (SSR with fan), a cable connects the fan to the far right center of the S2 board. Gently disconnect the cable from the connector on the output board. Do notremove the fan from the back cover. This is a single assembly.For the S2 output module, reconnect the fan cable to the connector on the far right center of the module. Tuck the cable aroundthe heatsink.Replacement1. Line up pins on the controller with pin connections on either sideof the module and push the new module into place.2. Reinstall the back cover.ControllerPinModuleHousingClipBack CoverFigure 6.1Replacing Output ModuleAuto Cycle TimeThe Control Output Modules have a default cycle time of 1 second(fast switching) or 30 seconds (slow switching) (See table on page17). After replacing a control output, the 2110 verifies at power upif a slow or fast cycle time output has been installed. If an outputwith a different default cycle time is installed, the 2110 will changethe cycle time to the new device’s default. If the user has changedthe cycle time in configuration, the 2110 retains this value unlessan output with a different default cycle time has been installed.Chromalox 211018Section 6–Replacing Output Modules

2110 Temperature ControllerSection 7—CalibrationCalibration OffsetCalibration offset offsets the displayed value. Usually, this option isused to match displays of two different instruments that are measuring the same temperature, but are displaying different temperatures due to different thermocouple accuracy or placement of thethermocouples. Caution is advised when adding an offset to thedisplay, since the actual sensed temperature will not be displayed.Calibration offset (coFF) is available in the configuration mode, butonly displays if the security lock (LocH) is set to 736.Factory DefaultRecoveryThis option allow you to return the controller’s configuration parameters back to the factory default values (except for the LocH menu).This parameter could be used when moving a unit from one application to another to give the operator an easy place to begin setup ofthe unit.Factory Default Recovery is performed in the Configuration Mode,menu dFLt. The security lock (LocH) must be set to 736 to performa factory default recovery.To reestablish the factory default values:1. Disconnect load power.2. In the Configuration Mode, set security level (LocH) to 736.3. Go to menu dFLt and press . The controller will automaticallyreset the values. When the display cycles from rEdy to donE, therecovery is complete.CalibrationThe Chromalox 2110 Temperature Controlle

The 2110 is housed in a rugged, plastic 1/4 DIN package that only requires four inches behind the mounting surface. Straight-forward operation and easy-to-use control features are major strengths of the 2110 controller. Easy Three-Step Setu

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