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Julabo CF31 Operating Manual Download Page 33

Cryo-Compact Circulators 

33 

 

7.4.2. 

Early warning system, low level protection 

 

(patented) 

 

This low level protection is independent of the control circuit and is 

divided in two sections.  

1.  Switch in stage 1 recognizes a critical fluid level 

. 

An audible warning (interval tone) sounds and a message appears on 
the VFD COMFORT-DISPLAY

 

XXXXX

WARNING

CODE 40

  Press 

 

 

 

Niveau level warning 

Critical fluid level 

Replenish the bath 

tank with bath fluid 

 

Refill bath fluid! 
 

 

2.  witch in stage 2 recognizes a low fluid level 

.

 

If stage 2 of the low level protection device (according to IEC 61010-
2-010) is triggered, a complete shutdown of the heater and circulating 
pump is effected. 
A continuous alarm tone sounds and a message >ALARM< >CODE 
01< appears on the VFD COMFORT-DISPLAY. 

XXXXX

ALARM

CODE 01

  Press 

 

 

Insufficient liquid

level or float is

defective.

 

Turn off the unit with the mains switch, refill bath fluid and turn the 
unit on again! 
 

 

 

Important: 

Check the safety installations from time to time. 

  

 

 

Caution: 

When adding bath fluid, always use the same bath fluid type that is already in the bath. 

Bath oils must not contain any water and should be pre-heated approximately to the 

current bath temperature!  

Explosion hazard at high temperatures! 

 

Summary of Contents for CF31

Page 1: ... doc 08 08 17 Operating Manual Cryo Compact Circulators The HighTech Series CF31 CF41 1 951 4871 V5 08 17 JULABO GmbH 77960 Seelbach Germany Tel 49 0 7823 51 0 Fax 49 0 7823 24 91 info de julabo com www julabo com ...

Page 2: ...and distributed according to the requirements of ISO 9001 and ISO 14001 Certificate Registration No 01 100044846 Unpacking and inspecting Unpack the Cryo Compact Circulator and accessories and inspect them for possible transport damage Damage should be reported to the responsible carrier railway or postal authority and a damage report should be requested These instructions must be followed fully f...

Page 3: ...ctions 15 Operating instructions 18 4 Operating controls and functional elements 18 5 Preparations 22 5 1 Installation 22 5 2 Temperature application to external systems 22 5 3 Tubing 24 5 4 Bath fluids 25 6 Operating procedures 26 6 1 Power connection 26 6 2 Filling 26 6 3 Switching on Selecting the language 27 7 Manual operation 28 7 1 Start Stop 28 7 2 Control of the cooling machine 28 7 3 Sett...

Page 4: ...STAND BY input 57 8 5 4 ALARM output 58 8 6 Limits 59 8 7 Serial interface 61 8 8 ATC Absolute Temperature Calibration 3 point calibration 62 8 9 Setting the pump pressure 65 9 Troubleshooting guide Error messages 66 10 Electrical connections 69 11 Remote control 71 11 1 Setup for remote control 71 11 2 Communication with a PC or a superordinated data system 71 11 3 List of commands 72 11 4 Status...

Page 5: ...t temperature control parameters This means Full control on the control mode and the chance to manually adjust or adapt control to the specific application Absolute Temperature Calibration ATC3 With the 3 point calibration an offset is adjusted at three temperatures to ensure an accurate temperature pattern at the selected spot in the bath over the full temperature range Electrical connections The...

Page 6: ... housing vibrations damage to the operating element panel keypad display and contamination Make sure the product is checked for proper condition regularly depending on the conditions of use Regularly check at least every 2 years the proper condition of the mandatory warning prohibition and safety labels Make sure that the mains power supply has low impedance to avoid any negative effects on the in...

Page 7: ...re warning The label is put on by JULABO Observe the instructions in the manuals for instruments of a different make that you connect to the circulator particularly the corresponding safety instructions Also observe the pin assignment of plugs and technical specifications of the products 2 1 Disposal The product may be used with oil as bath fluid These oils fully or partially consist of mineral oi...

Page 8: ...Operator responsibility Safety instructions 8 2 2 EC Conformity ...

Page 9: ...Cryo Compact Circulators 9 ...

Page 10: ... the warranty of up to 24 months limited to a maximum of 10 000 working hours To apply for this extended warranty the user must register the unit on the JULABO web site www julabo com indicating the serial no The extended warranty will apply from the date of JULABO GmbH s original invoice JULABO GmbH reserves the right to decide the validity of any warranty claim In case of faults arising either d...

Page 11: ...20 Medium ethanol kW 0 32 0 25 0 15 Cooling compressor 1 stage Refrigerant R134a Cooling machine Air cooled Electrical connections see page 13 Electronically adj pump capacity 1 4 stages Flow rate min max at 0 bar l min 22 26 Pressure max at 0 liter bar 0 7 Suction max at 0 liter bar 0 4 Bath opening WxL cm 16x3 Bath depth cm 14 Filling volume liters 2 0 3 0 Overall dimensions WxDxH cm 24x46x40 We...

Page 12: ... Medium ethanol kW 0 47 0 4 0 28 0 12 Cooling compressor 1 stage Refrigerant R404A Cooling machine Air cooled Electrical connections see page 13 Electronically adj pump capacity 1 4 Flow rate min max at 0 bar l min 22 26 Pressure max at 0 liter bar 0 7 Suction max at 0 liter bar 0 4 Bath opening WxL cm 19x3 Bath depth cm 19 Filling volume Liter 4 0 5 5 Overall dimensions WxDxH cm 28x46x46 Weight k...

Page 13: ...al audible in intervals Low temperature warning function optical audible in intervals Supervision of working sensor plausibility control Reciprocal sensor monitoring between working and safety sensors difference 35 K Environmental conditions according to IEC 61 010 1 Use indoors only Altitude up to 2000 m normal zero Ambient temperature see Technical specifications Humidity Max relative humidity 8...

Page 14: ...lation 517 2014 the operator of a system of this nature has the following duties The operator must ensure that the equipment is checked at regular intervals for leaks These intervals depend on the CO2 equivalent of the system This is calculated from the refrigerant fill volume and type of refrigerant The CO2 equivalent of your system is shown on the model plate The operator undertakes to have main...

Page 15: ...or anything in its surroundings can be damaged 3 2 Explanation of other notes Note Draws attention to something special Important Indicates usage tips and other useful information 3 3 Safety instructions Follow the safety instructions to avoid personal injury and property damage Also the valid safety instructions for workplaces must be followed Only connect the unit to a power socket with an earth...

Page 16: ... before moving the unit Transport the unit with care Sudden jolts or drops may cause damage in the interior of the unit Observe all warning labels Never remove warning labels Never operate units with damaged mains power cables Repairs are to be carried out only by qualified service personnel Some parts of the bath tank and the pump connections may become extremely hot during continuous operation T...

Page 17: ... do when a dangerous substance was spilled on or in the unit Before starting to work obtain information concerning the substance and determine the method of decontamination Notice Check the safety installations at least twice a year Excess temperature protection according to IEC 61010 2 010 With a screwdriver turn back the adjustable excess temperature protection until the shutdown point actual te...

Page 18: ...ctions 4 Operating controls and functional elements Front view CF41 CF31 Rear view CF41 CF31 8b ext Pt100 SERIAL ALAR REG E OG STAND T16A T16A 9 10 11 12 13 14 15 16 17 T16A T16A 8b 15 16 17 14 ext Pt100 SERIAL ALAR REG E OG STAND 9 10 11 12 13 ...

Page 19: ...external The display is depending on the selected control mode in the menu Control internal or external Line 2 Working temp setpoint constantly S xxx xx Line 3 Actual value E external or I internal Alternating with the display in line 1 Use the keys to indicate further values in line 3 However the functions of these keys are different with the programmer started PI Capacity in with manipulated var...

Page 20: ...5 Keypad 1 Start stop key Key for selecting the working temperature Setpoint 1 2 3 Key for selecting the warning and safety values MENU key for selecting the menu functions Cursor keys left or right Edit keys increase or decrease Enter key 1 Store value parameter 2 Next lower menu level Escape key 1 Cancel entries 2 Return to a higher menu level 6 Keypad 2 Numeral keypad numerals 0 to 9 minus deci...

Page 21: ...ut for external emergency switch off 11 REG E PROG Programmer input and temperature recorder output 12 ext Pt100 Socket for external measurement and control sensor or external setpoint programming 13 SERIAL Interface RS232 RS485 remote control via personal computer 14 Pump connection OUT pressure pump M16x1 15 Pump connection IN suction pump M16x1 return 16 Mains fuses T16A T20A CF41 115 V 60 Hz 1...

Page 22: ...o ensure the room does not warm up excessively because of the heat the instrument rejects to the environment Max permissible ambient temperature 35 C For a fault leakage in the refrigeration system the standard EN 378 prescribes a certain room space to be available for each kg of refrigerant The refrigerant quantity is specified on the type plate For 0 52 kg of refrigerant R404A 1 m3 of space is r...

Page 23: ...e coil and fasten with tube clamps to prevent slipping Tubing see page 24 Temperature application to external open systems S Suction pump connection D Pressure pump connection K Float H Height adjustment The Cryo Compact Circulator is equipped with both a pressure and suction pump for external temperature application in open systems Differing flow rates of the pressure and suction pumps should be ...

Page 24: ...he tubing from time to time Recommended tubing Order No Suitable for 8930008 1 m CR tubing 8 mm inner dia 20 120 C CF31 CF41 8930012 1 m CR tubing 12 mm inner dia 20 120 C CF31 CF41 8930108 1 m Viton tubing 8 mm inner dia 50 C bis 200 C CF31 CF41 8930112 1 m Viton tubing 12 mm inner dia 50 C bis 200 C CF31 CF41 Tubing insulation 8930410 1 m Insulation 14 mm inner dia CR tubing 8 mm inner dia 89304...

Page 25: ... special properties cause corrosion in the bath even on stainless steel Recommended bath fluids Bath fluid Temperature range soft decalcified water 5 C to 80 C See website for list of recommended bath fluids Contact see page 6 Caution Fire or other dangers when using bath fluids that are not recommended Please contact JULABO before using other than recommended bath liquids JULABO assumes no liabil...

Page 26: ...heating to avoid overflowing of the liquid Guideline A volume change of 12 per 100 C temperature variation is to be considered Take care that no liquid enters the interior of the Cryo Compact Circulator Connect the tubing from the external system to the pump connectors and check for leaks Check to make sure that the drain tap 7 is closed Recommendation For filling use for example an measuring jug ...

Page 27: ...egrated control light will illuminate to indicate that power has been applied During the self test all segments of the VFD Info Display and the LCD DIALOG DISPLAY light up Then the type of unit and the software version is indicated example JULABO CF41 230 Volt Version 1 02 41 The display OFF or R OFF indicates the unit is ready to operate The Cryo Compact Circulator enters the operating mode activ...

Page 28: ...using a timer 7 2 Control of the cooling machine With the mains switch turned on the circulator automatically switches the cooling machine off and on To ensure protection of the compressor the software only switches the compressor on after a delay of 200 seconds If the controller requires cooling performance during standstill of the compressor the segment at the bottom of the display blinks It is ...

Page 29: ... Press the key The LCD DIALOG DISPLAY indicates the valid settings 2 Use the keys to select Setpoint 3 One segment of the line blinks Change the value to 85 C 3 Use the numeral keypad to enter 8 and 5 Then press enter to store the value The value remains visible on the LCD DIALOG DISPLAY for about 10 seconds or press to update the display immediately In the Start condition this value is immediatel...

Page 30: ...eSens xx xx C C C 100 140 220 0 60 20 Legend Setting via keypad Select parameter Select menu item Change menu level scroll down scroll up 1 Example 1 Press the key The LCD DIALOG DISPLAY shows the valid settings see example above 2 Use the keys to select the menu item Settings Warn Type Select the parameter with the key and press enter warning or alarm OverTemp and SubTemp Use the numeral keypad t...

Page 31: ... and low temperature warning values In the example below the Setpoint of 85 C is surrounded by the values OverTemp 87 C and SubTemp 83 C The electronics immediately registers when the actual temperature attains a temperature out of the limits and it follows a reaction according to what is set in the menu item Warn Type Warn Type Warning Warn Type Alarm An audible warning interval tone sounds and a...

Page 32: ...ss temperature protection device This safety installation is independent of the control circuit When the temperature of the bath fluid has reached the safety temperature a complete shutdown of the heater and pump is effected The alarm is indicated by optical and audible signals continuous tone The following error message appears on the VFD COMFORT DISPLAY XXXXX ALARM CODE 14 Press for help on the ...

Page 33: ...stage 2 of the low level protection device according to IEC 61010 2 010 is triggered a complete shutdown of the heater and circulating pump is effected A continuous alarm tone sounds and a message ALARM CODE 01 appears on the VFD COMFORT DISPLAY XXXXX ALARM CODE 01 Press Insufficient liquid level or float is defective Turn off the unit with the mains switch refill bath fluid and turn the unit on a...

Page 34: ...setting ranges and capacity variables Online communication with adjustable interface parameters Absolute temperature calibration sensor calibration Electronically adjustable pump capacity ESC Configuration Control Profile Start Int Programmer Inputs Outputs Limits Interface serial ATCalibration Pump Main menu If the electronic module is not fitted the item inputs outputs will be missing in the men...

Page 35: ...mpact Circulator provides four possibilities for setpoint setting The selected mode is indicated in line 1 on the LCD DIALOG DISPLAY Possible parameters keypad Setpoint setting via keypad or via the integrated programmer factory setting RS232 or RS485 Setpoint setting via the serial RS232 RS485 interface through a PC or superordinated data system In the header of the VFD COMFORT DISPLAY an R illum...

Page 36: ...er failure non automatic start mode This safe operating state is indicated by OFF resp R OFF on the VFD COMFORT DISPLAY A complete shutdown of the main functional elements such as heater and circulating pump is effected simultaneously The values set on the Cryo Compact Circulator remain stored and the unit is returned to operation by pressing the start stop key in manual control mode In remote con...

Page 37: ...is variable If this happens with the control electronics of the Cryo Compact Circulator called control in this particular case the bath temperature is exactly heated and maintained constant at the adjusted setpoint Programming of variables for the parameters serial or eprog is only accepted if the unit is in Start mode Possible parameters control The internal control electronics of the Cryo Compac...

Page 38: ...as gaskets or insulations for example may be damaged or destroyed if the permissible maximum temperature is exceeded The safety and warning functions of the instrument should always be used to their fullest capacity See page 30 Example Setpoints Setpoint1 20 00 C Setpoint2 37 00 C Sezpoint3 70 00 C C F Setpoints Setpoint1 68 00 F Setpoint2 98 60 F Setpoint3 158 00 F Unit Temperature values can be ...

Page 39: ...5s Xpu 5 0K 1 ESC ESC internal external Example 0 8 1 Use the keys to select the menu item 2 With the keys select the parameter parameter blinks or use the numeral keypad to enter the numbers number segment blinks 3 Press enter to store the new parameter or value OFF S xx xx E xx xx ControlType Can only be adjusted in the OFF condition Possible parameters intern internal temperature control extern...

Page 40: ...eel PTFE coated 3 m 8981103 Extension cable for Pt100 sensor 3 5 m 8981020 M R in line Pt100 sensor The M R in line Pt100 sensor is a flow sensor and can be installed loop circuit Notice Place the external sensor into the bath medium and securely fix the sensor Selftuning When performing an selftuning for the controlled system temperature application system the control parameters Xp Tn and Tv are ...

Page 41: ...automatically determined and stored Depending on the controlled system time for tuning can be unequally longer This controller layout allows protection of sensitive objects requiring temperature application As soon as a co speed factor is set it is considered for calculating the control parameters As shown in the diagram tuning times become shorter the higher the co speed factor is but overshootin...

Page 42: ...e control settling time An insufficient lead time will prolong the time required to compensate for disturbance effects and cause high overshooting during run up An excessive lead time could cause instabilities oscillations to occur Setting range 0 1 99 9 K Proportional range Xpu The proportional range Xpu of the cascaded controller is only needed for external control Optimization instructions for ...

Page 43: ...n 11 12 Year 2004 Start no yes 1 Programmer Start Example 11 15 1 Use the keys to select the menu item 2 With the keys select the parameter parameter blinks or use the numeral keypad to enter the numbers number segment blinks 3 Press enter to store the new parameter or value If the parameter time is selected a further submenu opens for setting the start time Possible parameters Start Profile 1 to ...

Page 44: ...D display The Cryo Compact Circulator operates and controls this temperature until the Start Stop key is pressed or a new profile is started Setp 1 Setp 2 Setp 3 Setp short for Setpoint Before starting the programmer a temperature value is set for one of the three setpoints in the menu example Setpoint 2 58 00 C The Cryo Compact Circulator operates and controls this temperature at the end of the p...

Page 45: ...n line 4 Remaining time of the actual section standard display Remaining total time Profile x number of repetitions All Days hours minutes seconds Particularitys 1 If a total time of more than 999 days is calculated only the hours are displayed on the unit All hours minutes seconds 2 If the time period of a section is edited after start then the remaining total time can no longer be displayed The ...

Page 46: ...till try it the message Step is active appears on the LCD display Edit Step 6 Setp 83 00 C time hh mm 01 25 Changing a section The values in lines 3 and 4 can be changed even on the section that is currently processed In the input window select the menu item with the keys Use the numeral keypad to enter the numbers and press enter Examples Setpoint target temperature 83 C Time time period 1 hour 2...

Page 47: ...nd By flashes on the LCD DIALOG DISPLAY Notice This is not an actual emergency switch off Warning Following a power interruption it would be possible in this condition for the instrument to restart automatically The safety and warning functions of the instrument should always be used to their fullest capacity See Warning page 36 8 3 3 Interruption after a power failure Starttime 06 00 Date 15 12 w...

Page 48: ...s to remain in the Start menu The start of another temperature profile can now be prepared if necessary Example Setpoint1 150 00 C IntAct 83 24 C Power 0 Control intern OFF S 150 00 E Interruption after a power failure In case of a power failure the reaction of the Cryo Compact Circulator is the same as when switched off and on again with the mains switch The LCD DIALOG DISPLAY gives information o...

Page 49: ...ts Limits Int Programmer Edit Profile 0 Step 0 Setp C Time hh mm Delete Prof 0 from Step 0 to Step 60 delete no yes Print Profile 0 Print yes no hour min 14 24 Day Mon 07 12 Year 2006 14 24 36 Int Programmer Edit Delete Print Set Clock ESC 1 1 1 1 ESC ESC Edit Delete Print Set Clock 1 Use the keys to select the desired menu item in menu level 2 on the LCD DIALOG DISPLAY and press enter to change t...

Page 50: ...Then programme the desired values for each section Use the keypad to set section number target temperature and time period Set each entry with enter Step Section No 6 Setpoint target temperature 100 C Time time period 1 h 05 minutes When the program is running only sections having complete information for target temperature and time period are considered It makes sense to leave out section numbers...

Page 51: ...more consecutive sections are to be deleted Example Delete step 8 to step 34 in profile 4 yes Line 4 indicates the deletion Example Print Profile 2 Print yes Print Print Profile 2 print Print Print Each profile may be printed via the serial interface for control or documentation A flashing segment indicates that the number of the profile to be printed needs to be entered Example Print profile 2 ye...

Page 52: ...s outputs will be missing in the menu Main menu Limits Interface serial Input Output Inputs Outputs Chan 1 ActInt EPROG Setpoint Ext StBy inactiv Alarmout StdBy Chan 2 Setpoint Chan 3 Power Output Chan 1 tExt Power Setpoint Value of ActInt Ac 0V 50 00 C 10V 200 0 C Output Chan 2 tExt Power Value of Setpiont ActInt Ac 0V 0 00 C 10V 100 00 C Output Chan 3 tExt ActInt Value of Power Setpoint Ac 0mA 0...

Page 53: ...pens for each menu item 3 In the input window in menu level 3 select the menu item with the keys 4 Use the keys to select the parameter parameter blinks or use the numeral keypad to enter the numbers number segment blinks 5 Press enter to store the new parameter or value Menu level 2 Channel 1 voltage output for recorder V Channel 2 voltage output for recorder V Channel 3 current output for record...

Page 54: ...annels 1 and 2 Assign the voltage values of 0 V to the lowest and 10 V to the highest necessary temperature or power rating required as an output value C Current output channel 3 Assign the current values 0 mA or 4 mA to the lowest and 20 mA to the highest temperature or power rating required as an output value C 3 The current output chanell 3 offers 2 ranges for selection 0 to 20 mA or 4 to 20 mA...

Page 55: ... Setpoint Signal Current L Value 20 0 C H Value 300 0 C Setpoint 50 0 C Input EPROG Connect the external voltage or current source or programmer to socket 12 REG E PROG of the circulator Selecting the signal The programmer E PROG input of the circulator can be matched to the output signal of the external voltage or current source Voltage voltage input Current current input L Value Setting the LOW ...

Page 56: ...t value by pressing the appropriate buttons on the keypad of the instrument Example A 200 C and set by pressing enter Return to the standard display by pressing Example B in the diagram serves to illustrate that the end point values are freely selectable Ex 8 mA and 16 mA Value as Setpoint Signal Voltage L Value 20 0 C H Value 200 0 C Setpoint 152 0 C Input EPROG Eprog 152 00 C IntAct 50 76 C Powe...

Page 57: ...sed the instrument returns to the standby state and E OFF is displayed Press to start Additional tips for using the STANDBY input The standby function can be used in conjunction with the AUTOSTART feature see page 36 1 If the Autostart function is NOT turned ON the standby input is used as described above 2 If the Autostart function is enabled the instrument will revert back to the original method...

Page 58: ...s Outputs AlarmOut Function StdBy Alarm Al StBy Type normal invers Signification of the terms under menu item Function The Cryo Compact Circulator is in condition StandBy or Alarm OFF S xx xx E XXXXX ALARM CODE xx For Type normal pins 2 and 3 are connected in any case according to the selected Function For Type invers pins 2 and 1 are connected in any case according to the selected Function Switch...

Page 59: ...ing range see working temperature range The limitation of the operating temperature range effects the temperature setting under the menu called up with the key Setpoint 1 2 3 It is possible to adjust only working temperatures that lie within the limit range set here Existing settings for Setpoint 1 2 3 and also for OverTemp and SubTemp see page 30 are automatically defered within the limit range H...

Page 60: ... Cryo Compact Circulator s Freezing protection when using water as bath fluid Upper band and Lower band Band limit The band limit is active for external control 25 50 10 20 30 40 50 60 10 20 30 40 50 60 10 min 75 100 150 200 C t external system internal bath AreaUp AreaDown For the heat up and cool down phases different settings to conform to the requirements of the particular application are poss...

Page 61: ...erface serial Main menu Limits ATCalibration Interface serial ESC Interface Type RS485 Baudrate 4800 9600 19200 38400 Parity even no odd Address 0 PROFI RS232 1 ESC Interface Type RS232 Baudrate 4800 9600 19200 38400 Parity even no odd Handshake hardw softw RS485 PROFI RS232 RS485 Type RS232 RS485 Baud rate 4800 9600 19200 38400 Parity none even odd Handshake software handshake hardware handshake ...

Page 62: ...ensor extern Status no yes Type 3 point 1 point 2 point TmpValue1 xx xx C CalValue1 xx xx C TmpValue2 xx xx C CalValue2 xx xx C TmpValue3 xx xx C CalValue3 xx xx C internal external Sensor intern extern Calibration can be carried out for the internal temperature sensor and for the external temperature sensor connected to the socket ext Pt100 The Cryo Compact Circulator is able to store both parame...

Page 63: ...The Calibration value is determined with a temperature measuring device and stored under menu item CalValue Example 1 point calibration C C T 1 T 3 point calibration C C T 1 T TT 1 Original curve Principle For ATC calibration in steady state the bath temperature at the location of the temperature sensor T M is determined at the respective adjusted working temperature This value is then set on the ...

Page 64: ...ensor TT should be assimilated to the actual temperatures on the measuring point TM Press the button Under the menu Control set ControlType to intern and press enter ControlType Can only be adjusted in the OFF condition Press start stop Calibration procedure 1 Press and set the first temperature value under Setpoint1 for example example 1st value 80 C 2 Wait until this temperature is maintained co...

Page 65: ...stage rotation speed after start For protecting the pump motor the rotation speed changes with the load applied for example depending on the viscosity of the bath fluid at different working temperatures Flow rate 22 26 l min Pump capacity stage 1 2 3 4 Pump pressure bar 0 4 0 5 0 6 0 7 Suction pump bar 0 2 0 26 0 33 0 4 Total capacity bar 0 6 0 76 0 93 1 1 in a loop circuit Main menu Interface ser...

Page 66: ...ficient liquid level or float is defective The Cryo Compact Circulator is operated without bath fluid or the liquid level is insufficient Replenish the bath tank with the bath fluid Tube breakage has occurred insufficient filling level due to excessive bath fluid pumped out Replace the tubing and replenish the bath tank with the bath fluid The float is defect e g because damaged in transit Repair ...

Page 67: ...tpoint Set the excess temperature to a higher value ALARM CODE 15 External control selected but ext sensor not connected or defective External control selected but external Pt100 sensor not connected or defect WARNING CODE 20 Cooling is affected or ambient temperature to high Clean condenser Cooling of the condenser is affected Clean air cooled condenser Check the flow rate and cooling water tempe...

Page 68: ...gain to cancel the alarm state If the unit cannot be returned to operation contact an authorized service station Disturbances that are not indicated The electronic pump motor is overload protected by an electronic current limiter If viscosity of the bath fluid is or becomes too high the motor stops running Mains fuses The mains fuses on the rear of the unit may easily be exchanged as shown on the ...

Page 69: ...l interface This port can be used to connect a computer with an RS232 or RS485 cable for remote control of the Cryo Compact Circulator Pin assignments RS232 Pin 2 RxD Receive Data Pin 3 TxD Transmit Data Pin 5 0 V Signal GND Pin 7 RTS Request to send Pin 8 CTS Clear to send Pin 1 4 6 9 Reserved do not use Pin assignments RS485 Pin 3 B Pin 5 0 V Signal GND Pin 6 5 V 50 mA max load current Pin 8 A P...

Page 70: ... and 3 are connected Switching capacity max 30 W 40 VA Switching voltage max 125 V Switching current max 1 A 1 2 3 AK STAND BY STAND BY input for external emergency switch off Pin assignment Pin Signal 1 not connected 2 5 V DC 3 0 V Functional description see page 57 1 2 3 4 5 6 REG E PROG Programmer input temperature recorder output Pin Signal 1 Voltage output Channel 1 0 10 V 2 Voltage output Ch...

Page 71: ...REMOTE STOP The Cryo Compact Circulator is now operated via the computer In general the computer master sends commands to the Cryo Compact Circulator slave The Cryo Compact Circulator sends data including error messages only when the computer sends a query In remote control mode After a power interruption the order to start and all values which have to be adjusted must be resent from the personal ...

Page 72: ..._55 5 LF Notice OUT commands Temperature values can be displayed on the Cryo Compact Circulator in C or F The settings sent via the interface must also be made in the selected unit according to this setting 11 3 List of commands OUT commands Setting parameters or temperature values Command Parameter Response of Cryo Compact Circulator OUT_MODE_01 0 Use working temperature Setpoint1 OUT_MODE_01 1 U...

Page 73: ...interface 100 100 OUT_SP_07 x Set the pump pressure stage 1 4 OUT_PAR_04 x x CoSpeed for external control 0 5 0 OUT_PAR_06 xxx Xp control parameter of the internal controller 0 1 99 9 OUT_PAR_07 xxx Tn control parameter of the internal controller 3 9999 OUT_PAR_08 xxx Tv control parameter of the internal controller 0 999 OUT_PAR_09 xxx Xp control parameter of the cascade controller 0 1 99 9 OUT_PA...

Page 74: ...of the external programmer REG E PROG IN_SP_06 none Temperature indicatio in C or F IN_SP_07 none 1 Adjusted pump stage in the OFF condition 2 Pump stage corresponding to the effective rotation speed after start IN_SP_08 none Value of a flowrate sensor connected to the E Prog input IN_PAR_00 none Temperature difference between working sensor and safety sensor IN_PAR_01 none Te Time constant of the...

Page 75: ...g once 2 Selftuning alway IN_MODE_03 none Type of the external programmer input 0 Voltage 0 V to 10 V 1 Current 0 mA to 20 mA IN_MODE_04 none Internal external temperature control 0 Temperature control with internal sensor 1 Temperature control with external Pt100 sensor IN_MODE_05 none Cryo Compact Circulator in Stop Start condition 0 Stop 1 Start IN_MODE_08 none Adjusted control dynamics 0 aperi...

Page 76: ...3 WARNING VALUE EXCEEDS TEMPERATURE LIMITS Value lies outside the adjusted range for the high and low temperature warning limits But value is stored 14 EXCESS TEMPERATURE PROTECTOR ALARM Excess temperature protector alarm 15 EXTERNAL SENSOR ALARM External control selected but external Pt100 sensor not connected 20 WARNING CLEAN CONDENSOR OR CHECK COOLING WATER CIRCUIT OF REFRIGERATOR Cooling of th...

Page 77: ...ns OFF R OFF or ALARM Connect the Cryo Compact Circulator to the computer using an interface cable Start the EasyBlackBox program The program asks for the used port COM1 and the baud rate of the unit You do not have this information on hand Simply try it out The program keeps on sending this request until the actually used port and correct baud rate are entered Data is read out and shown on the mo...

Page 78: ... the electronic module at top and bottom and applying light pressure connect the 15 pole connector Attach the electronic module using the screws A The Cryo Compact Circulator is ready for use It automatically recognizes the installed electronic module 13 1 Draining Notice Do not drain the bath fluid while it is hot Check the temperature of the bath fluid prior to draining by switching the unit on ...

Page 79: ...ation Cleaning Clean the outside of the unit using a wet cloth and low surface tension water The Cryo Compact Circulator is designed for continuous operation under normal conditions Periodic maintenance is not required The tank should be filled only with a bath fluid recommended by JULABO To avoid contamination it is essential to change the bath fluid from time to time Repairs Before asking for a ...

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