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Operating controls and functional elements

12

4.

Operating controls and functional elements

Rear view

1

Mains power switch, illuminated

A

Keypad: working area

2

Start / stop key

3

Working temperature setpoint

4

Control parameter Xp (proportional range)

5

Control parameter Tn (resetting time)

6

Control parameter Tv (lead time)

7

Tune key: determining the control parameters

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Summary of Contents for LC4 F

Page 1: ...19515213 DOC English Operating manual Temperature Controller LC4 F JULABO Labortechnik GmbH 77960 Seelbach Germany 49 0 7823 51 0 49 0 7823 24 91 info julabo de www julabo de 1 951 5213 01 11...

Page 2: ...ndustry are developed produced and distributed according to the requirements of ISO 9001 2008 Certificate Registration No 01 100044846 Unpacking and inspecting Unpack the circulator and accessories an...

Page 3: ...ng the temperature 19 5 8 Self tuning the PID control parameters Xp Tn und Tv 20 5 9 Setting the PID control parameters Xp Tn and Tv 21 5 9 1 Optimization instructions for the PID control parameters 2...

Page 4: ...ront and visible on the MULTI DISPLAY LED The RS232C port permits modern process engineering without additional interface directly on line from the controller to your application equipment The LC4 F t...

Page 5: ...hones should not be used in the immediate vicinity Magnetic radiation may affect other devices with components sensitive to magnetic fields e g monitors We recommend maintaining a minimum distance of...

Page 6: ...hot steam hot parts and surfaces that can be touched Warning label W26 Colors yellow black Hot surface warning The label is put on by JULABO Observe the instructions in the manuals for instruments of...

Page 7: ...ons and in accordance with appropriate operating instructions for a period of ONE YEAR Extension of the warranty period free of charge With the 1PLUS warranty the user receives a free of charge extens...

Page 8: ...echnique Safety temperature sensor Pt100 4 lead technique Electrical connections Temperature recorder output Programmer input Conversions for LC4 F see page 9 4 20 mA 0 20 mA 0 20 mA 0 10 V External a...

Page 9: ...up to 2000 m normal zero Ambient temperature 5 40 C for storage and transportation Air humidity Max rel humidity 80 for temperatures up to 31 C linear decrease down to 50 relative humidity at a tempe...

Page 10: ...t or minor injuries could result A warning of possible property damage may also be contained in the text Notice Describes a possibly harmful situation If this is not avoided the product or anything in...

Page 11: ...unit without bath fluid in the bath Never operate damaged or leaking equipment Always turn off the unit and disconnect the mains cable from the power source before performing any service or maintenanc...

Page 12: ...elements Rear view 1 Mains power switch illuminated A Keypad working area 2 Start stop key 3 Working temperature setpoint 4 Control parameter Xp proportional range 5 Control parameter Tn resetting ti...

Page 13: ...ty temperature setpoint Cursors left right Edit keys increase decrease setting Enter key store Indicator light Heating Indicator light Cooling 11 Connector Working sensor AF 12 Connector Safety sensor...

Page 14: ...emperatures above 35 C result in a failure of the unit Do not set up the unit in the immediate vicinity of heat sources and do not expose to sun light 5 2 Power connection Caution Only connect the uni...

Page 15: ...00 W at 230 V Max current 5 A at 115 V 10 A at 230 V 5 4 Connecting the temperature sensors Connect both sensors prior to turning the unit on since an alarm shutoff will be effected if the sensors are...

Page 16: ...h a cooling coil connected to a solenoid valve and the MVS controller 11 Connector Safety sensor 11a Safety sensor 12 Connector Working sensor 12a Working sensor 15 Connector for control cable 15a Con...

Page 17: ...LC4 F 17 Indirectly heated bath liquid The bath liquid is indirectly heated Working and safety sensors must both be immersed in the bath liquid...

Page 18: ...ure setpoint example 21 0 C and the permanently installed setpoints example 20 0 C and 125 0 C are also indicated The controller enters the operating mode activated before switching the controller off...

Page 19: ...via the interface before operation of the controller may be restarted 5 7 Setting the temperature A Setting the working temperature 1 Press the setpoint key The indicator light blinks and the effectiv...

Page 20: ...tion For successful self tuning the controller heats above a temperature difference of 20 C The control parameters are set too high if the selected values cannot be reached under certain circumstances...

Page 21: ...e MULTI DISPLAY LED 2 Use the cursor keys to move left or right on the display until the numeral you wish to change is blinking 3 Use the increase decrease arrows to change the selected numeral 0 1 2...

Page 22: ...tor light blinks and the effective value for Tv appears on the MULTI DISPLAY LED 2 Follow the instructions 3 for 4 example 14 s Setting range for Tv 0 to 1000 s With Tv set to 0 eingestellt the differ...

Page 23: ...ions for the PID control parameters The heat up curve reveals inappropriate control settings optimum setting Inappropriate settings may produce the following heat up curves Xp too low Tv Tn too low Xp...

Page 24: ...pears on the MULTI DISPLAY LED 2 Use the cursor keys to move left or right on the display until the numeral you wish to change is blinking 3 Use the increase decrease arrows to change the selected num...

Page 25: ...rking sensor is not connected to the temperature control medium An exothermic reaction has caused a rise in temperature 3 Press the key to deactivate the alarm The controller resumes operation Warning...

Page 26: ...ns one by one Example ATC AO EP EPH 6 1 Sensor calibration ATC SF or AF Laborregler TT Eichbad TM The ATC Absolute Temperature Calibration function serves to calibrate the working sensor AF and the sa...

Page 27: ...perature recorder output AO The temperature recorder output REG can be connected to the input of the recorder used in the application This arrangement is connected with a software and hardware setting...

Page 28: ...ltage input 0 10 V 2 Hardware setting Hardware setting is carried out in the housing of the S1 and S2 two way switches For a description see page 38 6 4 Programmer input scale EPH EPL The increase in...

Page 29: ...0 mA 5 6 mA 50 C 18 4 mA 350 C Change over to the range 0 20 mA Setting the upper value With the edit keys change the menu function from EPH0 to EPH1 and then press enter Using the cursor keys and the...

Page 30: ...factory setting range 4 20 mA Setting the upper value With the edit keys change the menu function from EPH0 to EPH1 and then press enter Using the cursor keys and the edit keys set the upper limit ex...

Page 31: ...s change the menu function from EPH0 to EPH1 and then press enter Using the cursor keys and the edit keys set the upper limit example 160 0 C and then press enter Setting the lower value With the edit...

Page 32: ...its 7 Stop bits 1 Use the edit keys to set the desired parameter and then press enter Adjustable interface parameters HANDSHAKE 0 Xon Xoff Protokoll Softwarehandshake 1 Protokoll RTS CTS Hardwarehands...

Page 33: ...maximum heater capacity and then press enter example 70 Factory setting 100 6 7 Active countercooling Pc For applications near the ambient temperature countercooling might become necessary For this pu...

Page 34: ...keys and the edit keys set the lower limit example 15 0 C and then press enter LL Low Limit factory setting 55 0 C Setting the upper limit With the edit keys change the menu function from HL 0 to HL...

Page 35: ...emperature sensor are interrupted or short circuited other errors After eliminating the malfunction press the mains power switch off and on again to cancel the alarm state If the error reappears conta...

Page 36: ...ug housing and the sensor tube 9 6 5 1 RS232C serial interface 13 This port can be used to connect a computer with an RS232C cable for remote control of the controller Pin assignments RS232 Pin 2 RxD...

Page 37: ...000 W resistive load at 115 V Maximum current 5 A Maximum 2000 W resistive load at 230 V Maximum current 10 A 1 2 3 4 5 6 REG EPROG Programmer input Temperatur recorder output 14 Pin Signal 1 Output t...

Page 38: ...mains cable from the power source before performing any service or maintenance procedures or before moving the unit Changing hardware settings Switch off the mains power switch and pull out the mains...

Page 39: ...ands to the controller slave The controller sends data including error messages only when the computer asks for it A transfer sequence consists of command space Hex 20 parameter the character separati...

Page 40: ...r effective value registered by working sensor in_pv_01 none Ask for effective heater capacity out_par_00 xxx x Set the parameter Xp in_par_00 none Ask for parameter Xp out_par_01 xxx x Set the parame...

Page 41: ...MEASUREMENT ALARM Error in measuring system 07 I2C BUS WRITE ERROR 07 I2C BUS READ ERROR 07 I2C BUS READ WRITE ERROR Internal errors 08 INVALID COMMAND Invalid command 09 COMMAND NOT ALLOWED IN CURRE...

Page 42: ...ance is not required Clean the outside of the unit using a wet cloth and low surface tension water Repairs Before asking for a service technician or returning a JULABO instrument for repair please con...

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