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Operating controls and functional elements

16

4. Operating controls and functional elements

Front view

LH47

LH50

air-cooled

water-cooled

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Содержание Presto Plus LH 47

Страница 1: ...s with integrated programmer LH 47 air cooled LH 50 water cooled JULABO WEST 2575 Pioneer Avenue Suite 102 Vista CA 92081 760 842 8010 760 842 8015 info julabo com www julabo com JULABO EAST 754 Roble...

Страница 2: ...the requirements of DIN EN ISO 9001 2000 Certificate Registration No 01 100044846 Unpacking and inspecting Unpack the unit and accessories and inspect them for possible transport damage Damage should...

Страница 3: ...ARATIONS 23 5 1 Bath fluids 23 5 2 Tubing 25 5 3 Installation 26 5 4 Connect the external system 26 5 5 Cooling water connection LH 50 28 5 6 Power connection 29 5 7 Filling 29 5 7 1 Filling of extern...

Страница 4: ...7 Interface 56 8 8 Sensors 57 8 9 Pump 58 9 TROUBLESHOOTING GUIDE ERROR MESSAGES 59 10 ELECTRICAL CONNECTIONS 61 11 REMOTE CONTROL 64 11 1 Setup for remote control 64 11 2 Communication with a PC or a...

Страница 5: ...nfo Display as well as the removable control module RD connected with a cable The microprocessor technology allows four temperature values to be stored and indicated on the DIALOG DISPLAY LCD of the c...

Страница 6: ...ation 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 prohibitio...

Страница 7: ...S1 0701 Table A1 2 9 Carefully read the user information prior to beginning operation Scope USA NAFTA 3 Warning label Proposition 65 Particular care and attention is necessary because of the wide oper...

Страница 8: ...water Flow rate at 20 C inlet temperature l h 390 Heater wattage kW 1 8 6 0 Pressure pump adjustable pressure min max at 0 liter discharge max at 0 bar grade bar l min 1 0 5 16 2 0 7 19 3 1 1 23 4 1 3...

Страница 9: ...e l h 330 Heater wattage kW 1 8 6 0 Pressure pump adjustable pressure min max at 0 liter discharge max at 0 bar grade bar l min 1 0 5 16 2 0 7 19 3 1 1 23 4 1 3 26 5 1 7 30 Pressure pump adjustable pr...

Страница 10: ...mA Temperature recorder outputs 0 to 10 V 0 V 100 C 10 V 400 C 0 to 20 mA 0 mA 100 C 20 mA 400 C 4 to 20 mA 4 mA 100 C 20 mA 400 C Stand by input External alarm device 24 0 V DC max 25 mA External me...

Страница 11: ...50 relative humidity at a temperature of 40 C Max mains fluctuations of 10 are permissible Overvoltage category II Pollution degree 2 Caution The unit is not suitable for use in explosive atmosphere...

Страница 12: ...stainless steel Chlorinated water will cause pitting corrosion in heat exchangers made of stainless steel Due to their corrosive characteristics distilled water and deionized water are unsuitable and...

Страница 13: ...Describes a possibly harmful situation If this is not avoided the product or anything in its surroundings can be damaged 3 2 Explanation of other notes Note Draws attention to something special Import...

Страница 14: ...g the unit Always turn off the unit and disconnect the mains cable from the power source before cleaning the unit Always empty the bath before moving the unit Transport the unit with care Sudden jolts...

Страница 15: ...ave finished the application it is recommended to keep on circulating the liquid in the bath or the external system for some time Simultaneously set the working temperature to 20 C to allow the temper...

Страница 16: ...Operating controls and functional elements 16 4 Operating controls and functional elements Front view LH47 LH50 air cooled water cooled...

Страница 17: ...play Header Control indicators see section 2 2 Line 1 Actual value Int or Ext To swap press the key see below Line 2 Working temp setpoint constantly S xxx xx or indication of the safety temperature T...

Страница 18: ...table excess temperature protection safety temperature Used for setting the safety temperature in the internal bath called TANK on the display 2 7 Adjustable safety temperature Used for setting the sa...

Страница 19: ...s Set the following values in Line 1 the working temperature Setp Line 2 the high temperature limit Overt Line 3 the low temperature limit Subtmp Line 4 the pump pressure stage St Pump 4 3 Control typ...

Страница 20: ...Operating controls and functional elements 20 Rear...

Страница 21: ...F4 Heater Pump 11a 0 1 Motor protection circuit breaker for compressor motor 12 Mains power cable with plug 13 14 Pump connectors Return Feed M16x1 15 Overflow connector M16x1 16 Connector for expansi...

Страница 22: ...ng In case of a closed external system the filling pipe 25 remains open and allows a change in volume of the bath liquid caused by temperature during operation In case of emergency it has to be possib...

Страница 23: ...fluids ATTENTION The maximum permissible viscosity is 50 mm2 S Caution The use of water in purified or unpurified form is not allowed Examples Tap water distilled water water glycol mixture CaCl2 brin...

Страница 24: ...temperature range 40 C bis 250 C Change in volume caused by temperature 1 75 liters Here an external expansion vessel is required Order no 8 970 830 Example B Filling quantity at ambient temperature 5...

Страница 25: ...Tubing At high working temperatures the tubing used for temperature application and cooling water supply represents a danger source A damaged tubing line may cause hot bath liquid to be pumped out wi...

Страница 26: ...fter transport wait about one hour after setting it up This will allow any oil that has accumulated laterally during transport to flow back down thus ensuring maximum cooling performance of the compre...

Страница 27: ...liquid in the loop circuit see diagram 1 page 24 Close the expansion vessel with the cover Das Order No 8 970 831 Expansion vessel 5 liters Note At the desired highest temperature drain overflowing b...

Страница 28: ...ing water in case of a fault in the cooling water circuit Observe the laws and regulations of the water distribution company valid in the location where the unit is operated Even high quality heat exc...

Страница 29: ...Guideline A volume change of 12 per 100 C temperature variation is to be considered The maximum change in volume in the internal reservoir for the different models is included in the table below Fill...

Страница 30: ...he automatic filling process As soon as the pump pressure indication in the 3rd line of the VFD Info Display P X XX has scaled up to at least 0 1 bar the tempering liquid is pumped into the external s...

Страница 31: ...ns the same as drain and therefore does not have to be adjusted Explanation of terms Mode sys close stands for closed external system Presto principle page 22 Press the respective keys in the followin...

Страница 32: ...e Degasifying active is inserted In this phase the temperature rise is stopped the pump motor and the ventilation valve are activated alternately audible During the heating up phase this degasifying m...

Страница 33: ...functions Pull the venting grid 8 1 to the front and remove Place a suitable vessel 8 2 for accepting the used bath liquid underneath the drain Slide a short piece of tubing onto the drain port and ho...

Страница 34: ...e unit returns to the previous operating mode that was active before it was turned off keypad control mode manual operation via the unit itself RD or remote control mode operation via PC Selecting the...

Страница 35: ...ting Notic For physical reasons refrigeration units provide full cooling performance only after some minutes After the start up to 5 minutes can go by until the cooling capacity is given Setp 20 00 C...

Страница 36: ...the working temperature in C Setp Line 2 the high temperature limit in C Overt Line 3 the low temperature limit in C Subtmp Line 4 the pump pressure stage St Pump Enter the desired values via the key...

Страница 37: ...d to enter the new value examples 130 00 C 13 00 C Press enter to store the selected value Setp 120 00 C Overt 130 00 C Subtmp 110 00 C St Pump 2 Subtmp Setting the low temperature limit Setting in li...

Страница 38: ...ade 1 7 4 Setting the safety temperature with shutdown function L Check the safety installations at least twice a year See page 15 TANK 150 RES 100 C 10 30 60 130 180 220 C 0 40 80 160 240 320 ALARM C...

Страница 39: ...ting screw to the desired value example 100 C Setting range 10 C to 220 C in 2 C steps The alarm is indicated by optical and audible signals continuous tone The error messages opposite appear on the D...

Страница 40: ...IALOG DISPLAY LCD indicates the effective control type in line 4 Control intern or Control extern Setp 120 00 C IntAct 21 00 C ExtAct 20 00 C Control Extern Int S 120 00 E 20 00 Press the start stop k...

Страница 41: ...41...

Страница 42: ...lly determined and stored Possible parameters off no identification The control parameters ascertained during the last identification are used for control purposes once single identification The instr...

Страница 43: ...the DIALOG DISPLAY LCD The control indicator R REMOTE is illuminated in the header of the VFD Info Display if setpoint selection is effected via the EPROG or SERIAL input Possible parameters keyb Setp...

Страница 44: ...u fully observe the safety and warning functions of the instrument If the setpoint is given via the serial interface no AUTOSTART is possible STAND BY Stand by input External stand by for emergency sw...

Страница 45: ...ious menu level Proportional range Xp The proportional range is the range below the selected temperature value in wich the the control circuit reduces the heating power from 100 to 0 Resetting time Tn...

Страница 46: ...a sufficient temperature stability is reached after approximately the same time CoSpeed 0 up to 5 This parameter affects the march temperature only in case of external control see page 40 The adjustm...

Страница 47: ...rature system is started with the start key and the bath is heated to the desired temperature for example 100 C At the end of the program the programmer switches to the operating state and holds the b...

Страница 48: ...tem switches to waiting mode and a flashing line wait appears on the DIALOG DISPLAY LCD The start time and actual time are permanently indicated on the display Int Indication after starting the profil...

Страница 49: ...t on hold and the message Stand By flashes on the DIALOG DISPLAY LCD Important To achieve this the stand by condition must first be activated and the AUTOSTART function turned on See page 44 Warning F...

Страница 50: ...ct the submenu Int Programmer Use the up down cursor keys to select the desired option Then press enter to open A flashing segment indicates that a number or value needs to be entered Edit Compile pro...

Страница 51: ...out section numbers in the profile in order to use them later for corrections in the profile Important If a time of 00 00 is set for a profile the profile is continued with the next section only afte...

Страница 52: ...ve sections are to be deleted In lines 2 and 3 of the DIALOG DISPLAY LCD enter the numbers of the sections to be deleted Press enter delete no yes Press the P key to select the parameter yes and press...

Страница 53: ...tive setpoint temperature Keypad integr programmer ext programmer ActInt internal actual temperature value bath temperature ActExt external actual temperature value external sensor Power periodic or i...

Страница 54: ...instrument can be matched to the output signal of the external voltage or current source Voltage voltage input Current current input Select the desired input value with the P key and set with enter L...

Страница 55: ...the instrument Example A 20 C and set by pressing enter H Value Setting the HIGH value 1 Adjust and set the highest desired value on the voltage or current source resp Example A 10 V Wait appr 30 sec...

Страница 56: ...cations of the equipment Select the submenu Limits with enter Select the desired option with the up down cursor keys A flashing digit indicates that a value needs to be entered IntMax see temperature...

Страница 57: ...Act xx 00 C ExtAct 51 22 C Control Intern ATC Ext serves calibration of an external Pt100 sensor Immerse the external Pt100 sensor and a calibrated thermometer together in a calibration bath at 50 C f...

Страница 58: ...ress enter to select the submenu Pump Select the desired option with the up down cursor keys Enter the desired value for the flashing digit Pump OFF ON Mode drain fill sys close Press the P key to sel...

Страница 59: ...n the internal reservoir RES is defect The safety temperature value lies below the working temperature setpoint Set the safety temperature to a higher value CODE 14 Safety sensor defect TANK The safet...

Страница 60: ...ling interval the motor will be automatically reconnected and the message CODE XX no longer appears Press enter to quit the audible signal After eliminating the malfunction press the mains power switc...

Страница 61: ...6 DTR Data terminal ready Pin 7 RTS Request to send Pin 8 CTS Clear to send Pin assignments RS485 Pin 3 A Pin 5 0 VD Signal GND Pin 8 B Pin 1 2 6 7 9 Reserved do not use Interface correspondence Inst...

Страница 62: ...0 mA 6 GND for Progammer 0 V 1 3 2 ALARM Alarm output 3 3 for external alarm signal This potential free change over contact is activated in case of an alarm when pins 2 and 3 are connected Switching c...

Страница 63: ...e STAND BY input The stand by function can be used in conjunction with the AUTOSTART feature see page 44 1 If the Autostart function is NOT turned ON the stand by input should be used as described abo...

Страница 64: ...RS232 RS485 Select the Configuration submenu and select the option Setpoint to define the interface see page 43 The interface parameters are set by selecting the submenu Interface on the instrument No...

Страница 65: ...sfer sequence consists of address RS485 interface only command space Hex 20 parameter the character separating decimals in a group is the period end of file Hex 0D The commands are divided into in or...

Страница 66: ...ue registered by the safety sensor TANK in_pv_05 none Pump pressure in bar in_sp_00 none Working temperature in_sp_03 none High temperature warning limit in_sp_04 none Low temperature warning limit in...

Страница 67: ...08 none Tv control parameter of the internal controller in_par_09 none Xp control parameter of the cascade controller in_par_10 none Proportional portion of the cascade controller in_par_11 none Tn co...

Страница 68: ...er 0 to 100 Note Enter the value with a preceding negative sign out_hil_01 xxx Set the desired maximum heating power 10 to 100 out_par_04 xxx Band limiting during external control Setting the maximum...

Страница 69: ...arning 04 LOW TEMPERATURE WARNING Low temperature warning 05 WORKING SENSOR ALARM Working temperature sensor short circuited or interrupted 06 SENSOR DIFFERENCE ALARM Sensor difference alarm Working t...

Страница 70: ...STAND BY PLUG IS MISSING External stand by contact is open Stand by input see pages 44 and 6 31 INTERNAL COMMUNICATION ERROR Communication between remote module RD and instrument interrupted 40 NIVEAU...

Страница 71: ...with the bath liquid The heat exchanger internal reservoir connecting tubing and external system should be rinsed several times using cleaning liquid Preparations 1 Drain the temperature system See c...

Страница 72: ...ugh the unit for about 15 minutes Press the stop key Drain the temperature system In the submenu Pump adjust the menu option Mode on drain stellen See chapter 5 9 Draining 2 Removing the cleaning liqu...

Страница 73: ...time to time Switch off the unit disconnect mains power cable Hold the venting grid pull out and remove Clean the ribbed condenser with a vacuum cleaner Replace the venting grid Switch on the unit Wa...

Страница 74: ...the unit Empty completely remove the expansion tank close tightly the connections with nuts and closing caps Careful and appropriate packing is important During transport the unit has to stand upright...

Страница 75: ...nd exclusive remedy under the Initial Warranty is strictly limited in Seller s sole discretion to either i repairing defective parts or ii replacing defective parts In either case the warranty period...

Страница 76: ...and shall be governed by the substantive laws of the Commonwealth of Pennsylvania without regard to its principles of conflicts of law 8 Waiver Any failure of the part of Seller to insist on strict c...

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