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1. Temperature Controller LC5248 AT masibus Ref No m49l om 301 Issue No 01 Temperature Controller Masibus Automation And Instrumentation Pvt Ltd B 30 GIDC Electronics Estate Sector 25 Gandhinagar 382044 Gujarat India Ph 91 79 23287275 79 Fax 91 79 23287281 82 Email support masibus com Web www masibus com Temperature Controller LC5248 AT Ref No m49l om 301 Issue No 01 Contents 1 INTRODUCTION 02 1 1 Purpose of the Manual 1 2 Product over View Description 1 3 Product Ordering Code 1 4 List of Accessories 2 SAFETY WARNING 04 PRECAUTIONS 2 1 Safety Precautions 2 2 Warning Precautions 3 INSTALLATION GUIDELINES 05 3 1 MOUNTING DETAILS 3 2 TERMINAL CONNECTION 3 3 FRONT PANEL DESCRIPTION 4 OPERATION GUIDELINE 06 4 1 RUN MODE 06 4 2 PASSWORD MODE 07 4 3 AUTOTUNE MODE 07 4 3 1 Autotune selection 4 3 2 Proportional Band 3 Integral term 4 Derivative term 5 Cycle time 6 Direct Reverse selection CONFIGURATION MODE 09 4 4 1 Configure Input Type 4 4 2 Configure Zero 4 4 3 Configure Span 4 4 4 Configure Set point Type 1 4 4 5 Configure Hysteresis 1 4 4 6 Configure Set point Type 2 4 4 7 Configure Hysteresis 2 4 4 8 Configure Open Sensor 4 4 9 Configure Decimal Point 4 4 10 Configure Brightness 4 4 11 Configure Password 4 4 12 Configure control type 4 4 13 Configure Relay type 4 5 CALIBRATION MODE 11 4 5 1 Calibration of Ambien2. Press Q st 2 This will save the changed or unchanged setpoint1 value press EN or EA 200 By inc dcr key value of setpoint 2 can be changed in SV window Press Q m A This will save the changed or unchanged setpoint1 value M A will be displayed only if PID type control output is selected in configure mode Press ES OR E MNUL By inc dcr key value of manual auto can be selected in SV window Power will be displayed only if manual selected Press Q PoWr This will save the changed or unchanged manual auto selection Press OR 50 By inc dcr key value of power can be changed in SV window When enter key pressed changed or unchanged value of power or manual auto will be saved as in SV window and unit will come in run mode 4 2 PASSWORD MODE B Press Key together to enter password mode Display PASS User s Manual masibus Press 0 Press ES OR y 1 Press tune Once correct password is entered then auto tune menu will be displayed if user does not change the password from change password submenu then initial password would be 1 else the user can change the password by entering into configure mode and going to pass submenu Press Key together to come out of password mode NOTE Autotune menu will be displayed depending upon the control output type selection If PID type control output is selected the Autotune menu will be displayed as PID If P type cont
3. 1 C K W 0 1 C PT 100 3W 4 20 mA 0 20 mA 1 5 VDC 0 5 VDC TM OQ aR we tw X Specify from table 1 4 List Of Accessories Sr Description Quantity No Of Accessories 1 Mounting Clamps 02 Mounting clamps should be of proper length and type according to the module of instrument 2 SAFETY WARNING PRECAUTIONS 2 1 Safety Precautions High voltages capable of causing damage are sometimes present in this instrument Before installation or beginning of any troubleshooting procedures the power to all equipment must be switched off and isolated Units suspected of being faulty must be disconnected and removed first and brought to a properly equipped workshop for testing and repair Component replacement and_ interval Page 4 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No 01 adjustments must be made by a company person only 2 2 Warning Precautions Before wiring verify the label for correct model no and options gt Wiring must be carried out by personnel who have basic electrical knowledge and practical experience gt It is recommended that power of these units to be protected by fuses circuit breakers or external over current rated at the minimum value possible All wiring must confirm to appropriate standards of good practice and local codes and regulations Wiring must be suitable for v
4. 1 externally 3 3 FRONT PANEL DESCRIPTION User s Manual masibus mai LC5248 AT Figure 5 Details of Front Panel 1 Ent Key Q By pressing increment Decrement key Increment amp Decrement value in SV window respectively On pressing ENT Key the Respective value is stored and Displayed on SV window in CONF and CAL mode 2 Increment key amp Decrement Key On pressing this both key Shows PASS in PV windows 3 PV window 4 digital 0 40 inch RED Display 4 SV window 4 digital 0 28 inch GREEN Display 5 Relay 1 Indication ON when relay 1 is energized 6 Relay 2 Indication ON when relay 2 is energized 4 OPERATION GUIDELINE 4 1 Run Mode Ambient will be displayed when decrement key is pressed in run mode Only if T C type input is selected Press 30 0 And percentage power is displayed when UP key pressed if manual mode is selected then o will be displayed in front of power Page 6 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No O1 Press B PID or P mode is selected 70 0 if manual mode is selected in PID 0 70 0 If up key is pressed once again it will display set point If power is displayed DP will blink in auto mode not in manual mode If enter key pressed then setpoint 1 will appear on PV window Press st 1 press or EA 100 By inc dcr key value of setpoint 1 can be changed in SV window
5. in SV window Press Q PASS To save changed or unchanged value of password as in SV window Press to configure control output type Press to configure BRIGHTNESS 4 4 12 CONFIGURE CONTROL OUTPUT TYPE Display CNTR Press PID Press ES OR 3 P By inc dcr key value of control output type can be changed in SV window Press io CNTR To save changed or unchanged value of password as in SV window Press to configure output type Press to configure password NOTE if P type control output is selected then once the unit is stable there may remain a shift of 1 or 2 degrees from set point which can be removed by setting MR value in P submenu 4 4 13 CONFIGURE RELAY TYPE Display OT Press SSR Press B RELY User s Manual masibus By inc dcr key relay type can be changed in SV window Press OT To save changed or unchanged value of password as in SV window Press to configure control output type Press 0 B Key together to come out of configuration mode Press Mea in run mode Key together to enter 4 5 CALIBRATION MODE Here one shot calibration is implemented Press and then it will show PASS i e password mode enter correct password and then press Q and then Key to enter calibration mode 4 5 1 CALIBRATION AMBIENT Display Cal Press Amb Press 30 0 Press B 31 0 By inc dcr key value of ambient can be changed in SV window Press iO Amb To save changed
6. or unchanged value of AMBIENT as in SV window Press 2 to configure ZERO 4 5 2 CALIBRATION OF ZERO Display CALZ Press 099 press E on EA 100 By inc dcr key value of calz can be changed in SV window Press Q CALZ To save changed or unchanged value of CALZ as in SV window Press Al to calibrate SPAN Page 11 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No 01 Press E to configure AMB 4 5 3 CALIBRATION OF SPAN Display CALS press Cd 1099 press Ed one 1200 By inc dcr key value of cals can be changed in SV window Press Q CALS To save changed or unchanged value of CALS as in SV window Press z to configure ZERO Note Amb calibration is only available with J K T C input Press Key together to come out of calibration mode 5 SPECIFICATION 5 1 DISPLAYS e Process Value and Parameter display 4 digits 0 40 Seven Segment Red LED s For Process Variable in degree Celsius 4 digits 0 28 Seven Segment Green LED s for set Value in degree Celsius e Status Display Individual discrete Red LED s to Indicate relay status e Operation Keys INC DEC For increment and decrement of various parameters and setpoint SETi and SET2 set parameters and setpoints 5 2 INPUTS e RTD PT100 3 wire PT 100 0 12C Automatic 3 wire compensation e Thermo couple types J K J 0 1 C K 0 1 C ANSI
7. ET VALUE OF HYSTERESIS 1 Display Hy 1 Press 10 Press A OR z 20 By inc dcr key value of hysteresis 1 can be changed in SV window Press Hy 1 To save changed or unchanged value of HYSTERESIS 1 as in SV window NOTE This parameter will be effective only if relay 1 functions as on off controller Page 9 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No O1 Press ES to configure setpoint 2 type Press to configure setpoint 1 type 4 4 6 CONFIGURE SET POINT2 TYPE masibus Up scale Under Open condition PV is treated above set point Down scale Under Open Condition PV is treated below set point Display tSP2 Press Hon Press ES OR z L on By inc dcr key value of setpoint 2 can be changed in SV window Press tSP2 To save changed or unchanged value of SETPOINT 2 type as in SV window Press to configure Hysteresis 2 Press to configure Hysteresis 1 4 4 7 TO SET VALUE OF HYSTERESIS 2 Display Hy 2 Press 10 Press E OR 3 20 By inc dcr key value of hysteresis 1 can be changed in SV window Press Q Hy 2 To save changed or unchanged value of HYSTERESIS 1 as in SV window Press to configure open sensor Press to configure setpoint2 type 4 4 12CONFIGURE OPEN SENSOR Display OPES Press UP Press ES OR z dn By inc dcr key value of open sensor can be changed in SV window Press dn To save c
8. aller Read Chapters 1 4 5 System Designer and New User Read All Chapters Expert User Read Chapters 5 6 7 1 1 2 Regarding This User s Manual This manual should be provided to the end user Keep an extra copy or copies of the manual in a safe place Read this manual carefully to gain a thorough understanding of how to operate this product before starting operation This manual describes the functions of this product Masibus does not guarantee the application of these functions for any particular purpose Under absolutely no circumstances may the contents of this manual in part or in whole be transcribed or copied without permission The contents of this manual are subject to change without prior notice Every effort has been made to ensure that the details of this manual are accurate However should any errors be found or important information be omitted please contact your nearest Masibus representative or our sales office 1 2 Product over View Description Model LC5248 AT is a microcontroller based On Off Temperature controller or PID controller that incorporates bright 4 Digit Seven Segment Display indicating process value and set value e ON OFF Control ON OFF Controller is the simplest form of temperature control device The output from the device is either on or off with no middle state An User s Manual masibus on off controller will switch the output on
9. dcr key value of derivative term can be changed in SV window Press Q tD To save changed or unchanged value of Derivative term as in SV window Press o configure Cycle time Press o configure Integral term 4 3 5 CYCLE TIME User s Manual masibus Display Ct Press 0 Press ES OR yy 1 By inc dcr key value of cycle time can be changed in SV window Press Q Ct To save changed or unchanged value of cycle time as in SV window Press ES to configure Direct Reverse set Press E to configure Derivative term 4 3 6 DIRECT REVERSE SELECTION Display o DIr Press O DIr Press ES OR z REV By inc dcr key value of Direct reverse can be changed in SV window Press O DIr To save changed or unchanged value of Direct reverse as in SV window Press to configure cycle time Press to configure manual reset 4 3 7 MANUAL RESET Display MR Press MR press or Be 1 0 By inc dcr key value of Direct reverse can be changed in SV window Press Q MR To save changed or unchanged value of Direct reverse as in SV window Press to configure direct reverse selection NOTE gt While Autotune function is on a DP will get displayed on SV window Page 8 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No 01 gt After auto tuning the unit if the result is not satisfactory then change the value of P 1 or D manually to remove oscillation
10. e PB term is O and autotune is set no also unit is not in manual mode then relay 1 will work as on off controller else it will work as PID controller e PID Control Heating Cooling Control For Heat Reverse Action and Cool Direct Action type PID control logic user has to program the proportional band integral time and derivative time for Heat Action They can either be set by auto tuning or can be changed manually as explained in control parameters Auto Tuning The Auto tuning process is performed at set point Temperature will oscillate around the set point during tuning process Set a set point to a lower value if overshooting around the normal process value is likely to cause damage To start the auto tuning process set the desired set point select the parameter AT in TUNE menu and set it to YES During Auto tuning lower display will flash AT AUTO message After auto tune procedure is completed the AT message will be removed and controller will revert back to the PID control by using the new calculated PID values The PID values obtained are stored in the nonvolatile memory Control Parameter Proportional BAND Proportional action is the action which the control output varies in proportion to the deviation between the setting value and the processing temperature If the proportional band is narrowed even if the output changes by a slight variation of the processing temperature better contro
11. gt cycle time for SSR 1 60 sec gt cycle time for Relay 10 300 sec Range PB 0to9999 FS Ti O to 1000 Seconds repeat Td 0to 180 Seconds 4 4 CONFIGURATION MODE Press and then it will show PASS enter correct password and then press key to enter configure mode 4 4 1 CONFIGURE INPUT TYPE Display ConF Press InPt Press tCckl Press 2 OR B tCk 1 Press InPt To save changed or unchanged value of ZERO as in SV window Press ES to configure ZERO 4 4 2 CONFIGURE ZERO Display ZErO Press 100 Press B 150 By inc dcr key value of zero can be changed in SV window Press ZErO To save changed or unchanged value of ZERO as in SV window Press to configure SPAN Press to configure INPT 4 4 3 CONFIGURE SPAN User s Manual masibus Display span Press 1200 press or Be 1372 By inc dcr key value of span can be changed in SV Mo Press SPAN To save changed or unchanged value of SPAN as in SV window Press to configure SET POINT1 type Press to configure ZERO 4 4 4 CONFIGURE SET POINT1 TYPE Display tSPl Press Hon Press IA OR z L on By inc dcr key value of setpoint 1 can be changed in SV window Press lo tSP1 To save changed or unchanged value of SETPOINT 1 type as in SV window NOTE This parameter will be effective only if relay 1 functions as on off controller Press to configure Hysteresis 1 Press to configure SPAN 4 4 5 TO S
12. hanged or unchanged value of Open sensor as in SV window User s Manual Table 1 Relay type PV Relay Led Hi On PV gt SP On On PV lt SP Off Off Open sensor Up scale On On Down scale Off Off Low On PV gt SP Off Off PV lt SP On On Open sensor Up scale Off Off Down scale On On Where SP Set Point PV Process value Press E to configure BRIGHTNESS If linear input type is not selected or DP If linear input type is selected Press to configure Hysteresis 2 4 4 12 CONFIGURE DECIMAL POINT Display dP Press 000 0 press EN or BA 00 00 By inc dcr key value of decimal point can be changed in PV and SV window Press Q dP To save changed or unchanged value of DECIMAL POINT as in PV and SV window Press Al to configure Brightness Press to configure OPENSENSOR Note 1 Decimal Point is only available with 0 5V 0 20mA or 1 5V 4 20mA input 4 4 12 CONFIGURE BRIGHTNESS Display BRhT Press 10 Press E OR E 50 By inc dcr key value of brightness can be changed in SV window Page 10 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No O1 Press 50 To save changed or unchanged value of BRIHTNESS as in SV window Press to configure DP if linear 2 type or open sensor Press to configure PASSWORD 4 4 11 CONFIGURE PASSWORD Display PASS Press 0 Press ES OR 3 1 By inc dcr key value of password can be changed
13. l results can be obtained as the offset decreases However if when the proportional band is narrowed too much even slight disturbances may cause variation in the processing temperature and control action changes to ON OFF action and the so called hunting phenomenon occurs Therefore when the processing temperature comes to a User s Manual masibus balanced position near the setting value and a constant temperature is maintained the most suitable value is selected by gradually narrowing the proportional band while observing the control results Integral Time Integral action is used to eliminate offset When the integral time is shortened the returning speed to the setting point is quickened However the cycle of oscillation is also quickened and the control becomes unstable Derivative Time Derivative action is used to restore the change in the processing temperature according to the rate of change It reduces the amplitude of overshoot and undershoots width If the derivative time is shortened restoring value becomes small and if the derivative time is made longer an excessive returning phenomenon may occur and the control system may be oscillated Cycle Time The Cycle time for output is the time where the output is on for percentage of that time and off for a percentage of that time creating a portioning effect The cycle time is only used where PI PD or PID control action is used The shorte
14. ly when the temperature crosses the setpoint For heating control the output is on when the temperature is below the set point and off above set point Since the temperature crosses the set point to change the output stage the process temperature will be cycling continually going from below set point to above and back below In cases where this cycling occurs rapidly and to prevent contactors and valves from getting damaged an on off differential or hysteresis is added to the controller operations This hysteresis assures if temperature exceed set point by a certain amount before then only output will turn off or on again On Off hysteresis prevents the output from chattering or making fast continual switches if the cycling above and below the set point occurs very rapidly TYPICAL RELAY OPERATION HIGH TYPE LOW TYPE Figure 1 Typical Relay operation High type For High type of set value once process value reaches up to set point Hysteresis value relay will be ON after nearly 1 5 seconds and it will be ON until process value goes down to Set point Low type For Low type of set value once process value reaches down to set point Hysteresis value relay will be ON after nearly 1 5 seconds and it will be ON until process value goes up toward Set point Page 2 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No 01 NOTE when th
15. o energize relays for actual value below or above set point with delay time for individual Relay Hysteresis setting 1 to 100 Counts 5 8 POWER SUPPLY masibus e Operating Supply 85 265VAC 50Hz 120 290 VDC gt 18 36VDC Optional e Power consumption lt 5VA 5 9 ENVIRONMENTAL CONDITION e Insulation Resistance gt 200M2 O 500VDC e Molding type ABS Plastic e Weight 120 Gms e Ambient Temperature 0 to 55 C e Humidity 30 to 95 RH non Condensing e Storage Temperature 0 80 C 6 Applications Of LC5248 AT Temperature Controller PID controller LC5248 AT Temp Controller LC5248 AT Temp Controller Figure 7 Direct Load Connected with Neutral Note User s Manual Page 13 of 14 Temperature Controller LC5248 AT masibus Ref No m49l om 301 Issue No 01 1 Relay has three potential free terminals C NC amp NO Here two terminals C and NO are provided User can use according to Application either C to Line or Neutral 2 The application Figure is for reference only 7 Maintenance A As a precautionary step please switch off the units before troubleshooting Disconnect the Unit suspected of being faulty and bring it to workshop for testing and repair Component replacement or any other change must be made by a company person only User s Manual Page 14 of 14
16. oltage current and temperature rating of the system Beware not to over tighten the terminal screws Unused control terminals should not be used as jumper points as they may be internally connected causing damage to the unit Verify that the ratings of the output devices and the inputs as specified in Chapter 7 are not exceeded Upon receipt of the shipment remove the unit from the carton and inspect the unit for shipping damage If any damage due to transit report and claim with the carrier Write down the model number and serial number for future reference when corresponding with our Customer Support Division Do not use this instrument in areas such as excessive shock vibration dirt moisture corrosive gases or rain The ambient temperature of the areas should not exceed the maximum rating specified Provides power from single phase instrument power supply If there is a lot of noise in the power line insert an insulating transformer into the primary side of the line and use a line filter on the secondary side As counter measures against noise do not place the primary and secondary power cables close to each other User s Manual masibus 3 INSTALLATION GUIDELINE 3 1 Mounting Details Figure 3 Mounting Details FRONT BEZEL 48 x 48 mm PANEL CUTOUT 45 x 45 mm DEPTH BEHIND THE PANEL 77 mm Note A UNPACKING Upon receipt of the shipment remove the unit form the carton and inspect the unit f
17. or shipping damage If any damage due to transit report and claim with the carrier Write down the model number serial number and date code for future reference when communicating with our Customer Support Division Use external switch or circuit breaker and external over current protection devices to protect whole panel or instrument in hazardous condition as not use this instrument in areas such as excessive shock vibration Page 5 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No 01 dirt moisture corrosive gases or rain The ambient temperature of the areas should not exceed the maximum rating specified 3 2 Terminal Connection e Noi cubos DO 00 a eae 341 2500hm 0 1 Use Externally c2 Oe Sr No IweuT fT OHA ciass 2 masibus pene www masibus com Figure 4 Terminal connection 1 Terminal 5 amp 6 Power Supply Input 85 265VAC O 50Hz 120 290VDC or 18 36 VDC optional Note a Use gt 250V 1Amp Cable for Power Supply b If cable has two parallel wires inside then Isolation between the wires should be 2 5 KV 2 Terminal 1 8 2 For Relay 1 potential free Contacts Use 230V 2A load For SSR output type optional 3 Terminal 3 amp 4 For Relay 2 potential free Contacts Use 230V 2A load 5 Terminal 7 For RTD Input Only 6 Terminal 8 amp 9 For T C amp Linear Input For Current Input Use Resistor 2500 0
18. r the cycle time the higher the proportionate resolution is and better is the control For Relay output Set to 10 to 30 seconds or more For SSR output Set to 1 to 30 seconds or more Page 3 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No 01 ON TIME ON TIME OFF CYCLETIME CONTROL OUTPUT 50 CYCLE TIME 10 SEC ON TIME ON TIME OFF 3 CYCLETIME ON TIME CONTROL OUTPUT 20 CYCLE TIME 10 SEC OFF 3 CYCLETIME BASIC PID TUNING PROCEDURE ADJUSTMENT SEQUENCE SYMPTOM SOLUTION Slow Decrease PB Response Proportional Band O hoot yers 99 or Increase PB Oscillation e Decrease TI Integral Time inst Fie a i Yy 9r Increase TI Oscillation Slow Response or Decrease TD Derivative Time Oscill tion High Overshoot or Increase TD Instability P ACTION PV PB too low Perfect Set point PB too high I Action PV Perfect Set point PB too high User s Manual Time PB too low Time masibus D Action PV PB too low Perfect Set point PB too high Time Figure2 Basic PID ADJUSTMENT GUIDE 1 3 Product Ordering Code LC5248 Input Types Aux Power Supply Control O P X XX X Heat Relay J W 1 C Ul 85 265 VAC R 18 36 VDC S SSR J W 0 1 C U2 K W
19. rol output is selected then the Autotune menu will be displayed as P and the submenu will consist of P band cycle time Dir Rev and MR variable If ON OFF type control output is selected then Autotune menu is skipped 4 3 AUTO TUNE MENU Press Sta and then it will show PASS enter correct password and then press Q key to enter autotune mode 4 3 1 AUTOTUNE SELECTION Display PID or P Depending upon control output type selection in configure menu Press Press Press E OR B yes Press A tuN To save changed or unchanged value of Autotune selection as in SV window A tuN A tuN Press ES to configure proportional Page 7 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No O1 band 4 3 2 PROPORTIONAL BAND Display pb Press 0 Press 2 OR z 1 By inc dcr key value of proportional band can be changed in SV window Press oO PB To save changed or unchanged value of Proportional band as in SV window Press to configure integral term Press to configure auto tune Selection 4 3 3 INTEGRAL TERM Display tI Press 0 Press ES OR z 1 By inc dcr key value of integral term can be changed in SV window Press oO TI To save changed or unchanged value of Integral term as in SV window Press o configure derivative term Press to configure Proportional band 4 3 4 DERIVATIVE TERM Display td Press 0 Press A OR z 1 By inc
20. standard User s Manual masibus 4 20mA 1 5 V dc linear 0 20mA 0 5 V dc linear Burn out Current 0 25 uA CMRR gt 120dB NMRR gt 40dB Input Impedance gt 1MQ Resolution 15 bits Sampling Period 55mS 5 3 INPUT RANGE PT100 200 to 850 C PT100 0 12C 199 9 to 850 0 C J 200 to 1200 C K 200 to 1372 C J K 0 12C 199 9 to 999 9 C 4 20mA 1 5VDC 0 20mA 0 5VDC 1999 to 9999 Field Scalable For Current Input Use Resistor 2502 0 1 Externally 5 4 ACCURACY e Linear 0 25 Full Span 1 Count e RTD T C For gt 0 C 0 25 Full Span 1 Degree For lt 0 C 0 5 Full Span 1 Degree Subject to recalibration 5 5 OUTPUT Relay O P PID For relay 1 and ON OFF control Rating 2A 230VAC Life cycle Mechanical 10 times Life Cycle Electrical 10 times SRR O P optional Voltage pulse Output signal On voltage 12 V gt Off voltage less than 1 V NOTE Relay 1 and SSR are optional At a time either relay 1 or SSR output will be available It s factory selectable 5 6 CALIBRATION Page 12 of 14 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No 01 e Zero and Span calibration for input using front panel keypad e CJC for T C type input and 3 wire lead compensation for RTD sensor is automatic e Instrument Warm up Time approx 30 Min 5 7 TYPES OF SET POINT Set point types are configurable t
21. t 4 5 2 Calibration of Zero 4 5 3 Calibration of Span 4 3 4 3 4 3 4 3 4 4 5 SPECIFICATIONS 12 1 Displays Inputs Input Range Accuracy Output Calibration anno y Anu AUN User s Manual masibus 5 7 Types of Set points 5 8 Power Supply 5 9 Environmental condition 6 Application of LC5248 Temperature Controller PID controller 13 7 Maintenance 14 Figures Figure 1 Typical Relay Operation 02 Figure2 Basic PID ADJUSTMENT GUIDE 04 Figure 3 Mounting Details 05 Figure 4 Terminal Connections 06 Figure 5 Details of Front Panel 06 Figure 6 Direct Load connected with Line 13 Figure 7 Direct Load connected with Neutral 13 Note Information in this manual is subject to change without prior notice or permission A WARNING SYMBOL The symbol calls attention to the operating procedure practice or the like which if not correctly performed or adhered to could result in personal injury or damage to or destruction of part or all of the product and system Do not proceed beyond a warning symbol until the indicated condition are fully understood and met E CLASS 2 TYPE OF INSTRUMENT Note Class 2 Instrument is using Line amp Neutral for Power Supply Input Page 1 of 13 Temperature Controller LC5248 AT Ref No m49l om 301 Issue No 01 1 INTRODUCTION 1 1 Purpose of the Manual 1 1 1 How to read this manual Inst
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