Brief operating instructions
Contents
1. YACE0053 03 05 02 11 LAUDA Compact Low temperature thermostat RL 10 CH 5 2 Hose connections Tubing type Int dia Temperature Application mm range C EPDM tubing For all bath LZS 021 insulated s an liquids except 35mm approx Ultra 350 and mineral oils water water glycol mixture Silicone tubing 11 LZS 007 insulated ext dia 32 mm approx Silikonschlauch 11 100 100 insulated ext dia 52 mm approx water water glycol mixture LZS 009 EPDM tube not for Ultra 350 and mineral oils Silicone oil causes pronounced swelling of Silicone rubber gt never use Silicone oil with Silicone tubing Protect tubing with hose clips against slipping off Metal hoses Tube int dia ext dia Temperature Length with insulation connection mm mm range C MK 50 M 16x1 90 150 LZM 052 MK 100 M 16x1 T 7 90 150 wi LZM 053 MK 150 M 16x1 10 44 90 150 150 LZM 054 MK 200 M 16x1 10 44 90 150 200 LZM 055 Pump link M 16x1 10 44 90 150 20 LZM 045 In case of lower temperatures an additional insulation is necessary on pump link LZM 045 Highly flexible thermally insulated stainless steel V2A metal hoses with M 16x1 mm connecting thread int diam 10 mm these hoses offer optimum security Further details on thermostatic liquids and hoses can be found in our special publication YACE0053 03 05 02 12 RL 10 CH 6 1 6 2 LAUDA Compa2. chauffage tage 1 Vanne solenoide compensation de pression LAUDA Compact Low temperature thermostat RL 10 CH 4 1 4 2 4 2 1 4 2 2 4 2 3 Operation safety and warning notes General information The thermostat must only be used with inflammable liquids or only with those flammable bath liquids whose flashpoint is more than 25 C above the operating temperature EN 61010 Warning The units must only be used according to the descriptions indicated in the operating instructions This also means that they must only be used by qualified staff being well informed The units must not be used for applications in the medical field according to EN 60601 1 or IEC 601 1 Warning notes Temperatures The flow and return pipes of the pumps reach the operating temperature Don t touch at low temperatures Mains connection Connect the unit only to mains sockets with protective earth contact PE Fume extraction Depending on the bath liquid used and the operating method there is a possibility that toxic vapours may be produced In that case it is necessary to provide appropriate fume extraction Pull out the mains plug before cleaning the bath with solvents Provide appropriate fume extraction Before starting up the unit it is absolutely essential to ensure that the bath contains no explosive mixture If necessary purge it with nitrogen YACE0053 03 05 02 10 LAUDA Compact Low temperature thermostat RL 10 CH 5 Bath
3. cover plate Check the supply voltage against the details on the label Insert the mains plug Switch on the unit with the mains switch green lamp lights up The internal bath temperature is indicated at the digital display After a longer standstill period of the refrigeration unit it can take up to approx 20 minutes depending on ambient temperature and type of the unit until the nominal cooling capacity is available When connecting up an external system ensure that the level in the thermostat does not fall more than permitted Operational safety The thermostat must only be used with inflammable liquids or only with those flammable bath liquids whose flashpoint is more than 25 C above the operating temperature Otherwise there is danger of an explosive atmosphere Note The outflow and return pipes of the pumps reach the operating temperature Don t touch at low temperatures The pump only starts to run when the 2nd stage of the cooling unit starts that means when the liquid cooling is effective YACE0053 03 05 02 4 LAUDA Compact Low temperature thermostat RL 10 CH 2 Technical Data to DIN 58966 Type RL 10 CH Operating temperature range C down to 80 Ambient temperature range C 5 to 35 Temp measurement Resolution C digital with green LED 1 C resolution Temperature probe Pt 100 Class B DIN IEC 751 Cooling capacity eff 20 C KW 0 45 50 C 0
4. disposal of refrigerant The high temperature stage of the unit is filled with CFC free refrigerant R 404 A its low temperature stage is filled with CFC free refrigerant TP 5 R3 Repair and disposal only by a refrigeration specialist frigorist Cleaning The unit can be cleaned using a cloth moistened with water with the addition of a few drops of a domestic detergent No water must find its way into the control unit The user is responsible for any necessary decontamination if dangerous materials have been spilled on or inside the unit This applies in particular if the unit is removed for a different use for repair storage etc The method of cleaning or decontamination is determined by the expertise of the user himself If the user has any doubts on whether this may damage the unit he can contact the manufacturer Spares ordering When ordering spares please specify the equipment type and number on the label This avoids queries and prevents supply of incorrect goods We shall always be happy to deal with queries suggestions and complaints LAUDA DR R WOBSER GMBH amp CO KG P O Box 1251 97912 Lauda K nigshofen Phone 49 0 9343 503 0 Fax 49 0 9343 503 222 E mail info lauda de Internet http www lauda de YACE0053 03 05 02 16 WBJBDIP 1IMND419 ZHO9 OS1AGES SUO XBUUO BP pweYyrS LOL TIA 895718 ADOTTA HI0L Te uD ea 1 D425 u3 S1BSNDASN IQ In buds Su D p anis 2 anis 40888 QUA c
5. media a t utilis avec le liquide suivant Dar ber hinaus best tigen wir da das oben aufgef hrte Ger t sorgf ltig gereinigt wurde die Anschl sse verschlossen sind und sich weder giftige aggressive radioaktive noch andere gef hrliche Medien in dem Ger t befinden Additionally we confirm that the above mentioned equipment has been cleaned that all connectors are closed and that there are no poisonous aggressive radioactive or other dangerous media inside the equipment D autre part nous confirmons que l appareil mentionn ci dessus a t nettoy correctement que les tubulures sont ferm es et qu il n y a aucun produit toxique agressif radioactif ou autre produit nocif ou dangeureux dans la cuve Stempel Datum Betreiber Seal Cachet Date Date Responsible person Personne responsable Formblatt Form Formulaire Unbedenk doc LAUDA DR R WOBSER GmbH amp Co KG Erstellt published tabli LSC PfarrstraBe 41 43 Tel 49 0 9343 503 0 And Stand config level Version 0 1 D 97922 Lauda K nigshofen Fax 49 0 9343 503 222 Datum date 30 10 1998 Internet http www lauda de E mail info lauda de UNBEDENK DOC
6. 25 70 C 0 17 80 C 0 09 Simplex pump Pump output against zero head l min 22 max Pump pressure bar 0 5 Filling volume L 8 11 Bath opening W x D mm 120x105 Bath depth mm 190 Usable liquid depth mm 150 Overall size WxDxH mm 495x615x740 Weight Kg 98 Power supply V Hz 230 50 60 Protection class 1 to VDE 106 1 Leistungsaufnahme ohne Zubeh r max kW 1 2 Units conform to EU Guideline 89 336 EWG EMC and 73 23 EWG low voltage and carry the CE mark 50Hz units Cat No 230V 50 60Hz LSO 0079 Units with different voltages may have a different loading see unit label Technical changes reserved YACE0053 03 05 02 5 LAUDA Compact Low temperature thermostat RL 10 CH RLIOCH Deg LED Anzeige Sicherung LED Display Fuse Indication LED Fusible Netzschalter Mains switch interrupteur g n ral Pumpenstutzen Pump connector Tubulures de pompe YACE0053 03 05 02 6 RL 10 CH 3 2 3 3 LAUDA Compact Low temperature thermostat LA U D A General construction and technical description Operating principle Laboratory thermostats operate with liquids operating medium heat transfer oil which serve for energy transfer to the product to be thermostated The thermostated products can be immersed in the thermostatic bath bath thermostat or placed in an external open bath whose liquid is circulated by the pump of the thermostat When operating as circulator the therm
7. 2A Fuse control Controle fusible Lampe K hlen Lamp cooling Lampe r froidissement Kompressor Stufe 1 Compressor stage 1 Compresseur tage 1 Ventilator Fan Ventilateur Kompressor Stufe 2 Compressor stage 2 Compresseur tage 2 Pumpenmotor Pump motor Moteur de pompe Anzeige Display Affichage Netzschalter Mains switch Interrupteur secteur Trafo Trafo Trafo NetzanschluB Netzkabel Mains connection Mains cable Branchement secteur Cable de secteur RL 10 CH UL 276A ETP 047 ETP 027 ECA 012 ES 035 ES 035 EES 013 EEF 002 UD 389 EM 062 EAO 098 EST 083 EIT 109 EKN 008 ab Serie X10 RL 10 CB UL 276A ETP 047 ETP 027 ECA 012 ES 035 ES 035 EES 013 EEF 002 UD 389 EM 062 EAO 098 EST 083 EIT 109 EKN 008 BEST TIGUNG CONFIRMATION CONFIRMATION LAUDR An To A LAUDA Dr R Wobser LAUDA Service Center Fax 49 0 9343 503 222 Von From De Firma Company Entreprise StraBe Street Rue Ort City Ville Tel Fax Betreiber Responsible person Personne responsable Hiermit bestatigen wir daB nachfolgend aufgef hrtes LAUDA Gerat Daten vom Typenschild We herewith confirm that the following LAUDA equipment see label Par la pr sente nous confirmons que l appareil LAUDA voir plaque signal tique Typ Type Type mit folgendem Medium betrieben wurde was used with the below mentioned
8. LAUDA Operating instructions LAUDA Compact Low temperature thermostats RL 10 CH LAUDA DR R WOBSER GMBH amp CO KG P O Box 1251 97912 Lauda K nigshofen valid from serie X 10 Phone 49 0 9343 503 0 05 02 Fax 49 0 9343 503 222 YACE 0053 E mail info lauda de Internet http www lauda de LAUDA Compact Low temperature thermostat RL 10 CH 1 YACE0053 03 05 02 3 LAUDA Compact Low temperature thermostat RL 10 CH 1 1 1 2 1 3 Brief operating instructions Even if you find these brief instructions initially sufficient please read the following sections especially Section 4 Safety devices and warning notes For safe operation of the equipment it is essential that the information in these Operating Instructions is observed Check thermostat and accessories during unpacking for any transport damage and if necessary inform the carrier or the postal authority Assemble the unit according to Section 6 and add extra items as appropriate Fit the hoses to the pump connections Without external system for improved circulation within the bath remove the closing plugs from the two pump connections fit the tubing nipples and link them together with Perbunan tubing 120 C max or a metal hose With external system make the hose connections to the external system Secure hoses with hose clips against slipping off Use only LAUDA bath liquids Section 5 Fill the unit up to about 2 cm below the
9. Ventilator Kompressor Stufe 2 Magnetventil K hlen Stufe 2 Magnetventil Heizen Stufe 2 Magnetventil Heizen Stufe 1 Magnetventil Druckausgleich YACE0053 03 05 02 Overpressure switch stage 1 Overpressure switch stage 2 Liquid separator Control valve suction stage 1 Condenser stage 1 Receiver Filter drier Expansion valve stage 1 Control valve pressure stage 1 Heat exchanger Shut off valve Expansion valve stage 2 Exchanger Liquid bath Heat exchanger Surge vessel Control valve suction stage 2 Control valve pressure stage 2 Condenser stage 2 Oil separator Compressor stage 1 Fan Compressor stage 2 Solenoid valve Cooling stage 2 Solenoid valve Heating stage 2 Solenoid valve Heating stage 1 Solenoid valve pressure compensation 9 Disjoncteur de surpression tage 1 Disjoncteur de surpression tage 2 Separateur de liquide Vanne de contr le aspiration tage 1 Condensateur tage 1 Receveur D shydrateur Vanne d expansion tage 1 Vanne de contr le pression tage 1 Echangeur thermique Vanne d arr t Vanne d expansion tage 2 Echangeur Bain de liquide Echangeur thermique R servoir d galisation de pression Vanne de contr le aspiration tage 2 Vanne de contr le pression tage 2 Condensateur tage 2 Separateur d huile Compresseur tage 1 Ventilateur Compresseur tage 2 Vanne solenoide r froidissement tage 2 Vanne solenoide chauffage tage 2 Vanne solenoide
10. ct Low temperature thermostat LA U D A Unpacking assembly and setting up Unpacking Goods are packed carefully largely preventing transport damage If unexpectedly some damage is visible on the equipment the carrier or the postal authority has to be informed so that it can be inspected Standard accessories 1 Bath cover Cat No HDQ 075 2 Nipples 13mm dia Cat No HKO 026 2 Screw caps Cat No HKM 032 2 Closing plugs Cat No HKN 065 Operating instruction Setting up Set up the unit conveniently so that the control panel is towards the front and ensure that the air circulation for the refrigeration system through the grille in the lower part of the unit is not restricted a minimum spacing of 50 cm is recommended Close the drain cock at the back of the bath YACE0053 03 05 02 13 LAUDA Compact Low temperature thermostat RL 10 CH 7 Connection of external systems 7 1 Closed external circuits Remove the closing plugs by releasing the threaded rings 19 mm a f from the flow and return connections and replace them by the tubing nipples 13 mm dia supplied If the thermostat is connected to closed external circuits additional liquid must be poured in after the thermostat is switched on until the level in the bath remains at the correct height approx 2 cm below top plate For suitable tubing materials see Section 5 With external systems at a high level it may happen even in closed circuits that the external volume
11. drains down and the thermostat tank overflows if the pump is stopped and air enters the thermostated system Always ensure the maximum possible flow area in the external circuit nipples tubing system This results in a larger flow and therefore improved thermostatic control Always protect tubing with hose clips against slipping off or use stainless steel hoses with screwed connections Note When tightening the threaded rings 19 mm a f at the tubing connections hold the threaded nipple with a spanner 14 mm a f stainless steel hoses with screwed connections Brot EL SW14 YACE0053 03 05 02 14 LAUDA Compact Low temperature thermostat RL 10 CH 8 Starting up 8 1 Filling Fill the unit with bath liquid to suit the operating temperature see Section 5 The filling volume is given under Technical data In general the thermostat must be filled no higher than 2 cm below the cover plate 8 2 Connection to supply Connect the unit only to mains sockets with protective earth contact PE Compare the details on the label with the mains voltage Switch on the unit with the mains switch The green signal lamp lights up Depending on the previous situation application the low temperature stage only starts working approx 10 sto 20 min after having swiched on the refrigeration The actual bath temperature is indicated at the digital display 9 Maintenance 9 1 Safe
12. estricted The compressors are fitted with a temperature monitor which responds to the compressor temperature and its current take up The cooling system is additionally protected against excessive pressure by a pressure monitor The refrigeration system consists of a two circuit cascade with electronic starting control of the low temperature stage At the green signal lamp Cooling can be observed if the cooling of the bath liquid is effective Cooling diagram Ce 20 10 10 20 30 40 50 60 70 80 90 0 20 40 60 80 100 120 140 160 180 min YACE0053 06 06 02 8 LAUDA Compact Low temperature thermostat RL 10 CH Cooling circuit RL Fi F2 J1 J2 J3 J4 J5 J6 J7 J8 J9 J16 J20 21 22 J10 J11 J12 J13 J14 J15 J17 J18 J19 M1 M2 M3 Y1 Y2 Y3 Y4 vom zum J3 JB M2 J18 Stufe 2 Stufe 1 berdruckschalter Stufe 1 berdruckschalter Stufe 2 Fl ssigkeitsabscheider Kontrollventil Saug Stufe 1 Kondensator Stufe 1 Sammelflasche Filtertrockner Expansionsventil Stufe 1 Kontrollventil Druck Stufe 1 W rmetauscher Absperrventil Expansionsventil Stufe 2 Verdampfer Fl ssigkeitsbad W rmetauscher Druckausgleichsbeh lter Kontrollventil Saug Stufe 2 Kontrollventil Druck Stufe 2 Kondensator Stufe 2 labscheider Kompressor Stufe 1
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14. liquids and hose connections The operating ranges specified for the bath liquids are for general information only and may be restricted through the operating temperature range or safety requirements specified in the appropriate standards see Section 4 1 5 1 Bath liquids LAUDA Working Chemical Viscosity Ref No Designation tem Designation kin at Quantity perature Temperature range designation to C Kryo 85 Ultra 85 30 Silicone oil 1 76 17 at 80 C gt 56 LZB 113 LZB 213 LZB 313 Therm XLT When selecting bath liquids it should be noted that performance must be expected to worsen LS at the lower limit of the operating temperature range due to increasing viscosity The full operating range should only be utilised if really necessary The operating ranges of the bath liquids and tubing represent general data which may be limited by the operating temperature range of the unit Silicone oil causes pronounced swelling of Silicone rubber gt never use Silicone oil with Silicone tubing Ethyl alcohol Ethyl alcohol is frequently used for operating temperatures below 60 C Warning As the fire point of ethyl alcohol is 12 C the user works outside the standard specifications see Item 4 2 It is essential that the unit is being operated under continuous supervision boiling point 78 C firepoint 12 C viscosity at 20 C 1 5 mm s freezing point 114 C DIN safety data sheets are available on request
15. ostatic liquid is pumped through an external heat exchanger arranged by the user in which a product is being thermostated The unit RL 10 CH is a low temperature thermostat that does not have any temperature control After switch on it works with maximum cooling capacity Materials All materials in contact with the bath liquid are made from high grade stainless steel or materials of similar anti corrosion properties Materials of PTFE and PETP are also used in the thermostats Series RL Pump The RL 10 CH is equipped with a centrifugal pressure pump This can be used to operate closed external systems reactors The pump switches on automatically if the 2nd stage of the cooling aggregate starts that means the green signal lamp Cooling lights up The pump is driven by an external rotor motor The pumps operate perfectly up to a viscosity of approx 30 mm2 s with the pump output decreasing rapidly with increasing viscosity Pump characteristic 230 V 50 Hz YACE0053 03 05 02 7 LAUDA Compact Low temperature thermostat RL 10 CH 3 4 Refrigeration system The refrigeration system consists of a two circuit cascade with electronic starting control of the low temperature stage The condensation and motor heat is dissipated through a fan cooled finned tube condenser Fresh air is drawn in at the front heated and discharged at the back and the sides To ensure problem free air circulation the ventilation openings must not be r
16. ty notes in case of repairs Always pull out the mains plug during all repair and cleaning operations Repairs on the control unit with cover removed must only be carried out by a qualified electrician 9 2 Repairs LAUDA thermostats are largely free from maintenance Dirty thermostatic liquid should be removed through the drain cock and replaced If the unit should become faulty it is advisable to return only the faulty module The control unit can readily be removed after removing the cover releasing 2 screws 2 turns behind the front panel and disconnecting the electrical connections The module with pump heater temperature probe etc can also be easily separated from the bath There is a fuse T 12 5 A 6 3 x 32 for the complete unit The fuse being accessible is located at the back side The green lamp in the mains switch does not flash when the fuse has set off In the control unit there is an additional fuse F 0 2 A 5x20 9 3 Maintenance of the refrigeration system The refrigeration system operates largely without maintenance If the unit is being operated in a dusty atmosphere we recommend cleaning of the refrigeration system condenser at intervals of 4 to 6 months This best done with compressed air or nitrogen by blowing for a few minutes into the ventilation openings If necessary unscrew the front grills YACE0053 03 05 02 15 LAUDA Compact Low temperature thermostat RL 10 CH 9 3 1 9 4 9 5 Repair and
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