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7 Maintenance

7.1

General safety instructions

DANGER!

Contact with live or moving parts

Electric shock, impacts, cutting, crushing



The device must be disconnected from the mains power

supply before any kind of maintenance is performed.



Only skilled personnel are permitted to perform repairs.

CAUTION!

Contact with hot / cold device parts, accessories and heat

transfer liquid

Burns, scalding, cold burns



Bring device parts, accessories and heat transfer liquid to

room temperature before touching them.

Please also note the following:

Before conducting maintenance work, ensure that the device has been

decontaminated after coming into contact with hazardous materials.

7.2 Maintenance intervals

The maintenance intervals described in the following table must be observed.

The following compulsory maintenance tasks must be performed before

operating the device for prolonged periods.

Interval

Maintenance work

daily

External visual inspection of the drain screw

Monthly

Inspect the external hoses for material fatigue
Clean the condenser

Six monthly

Check the heat transfer liquid

V07

Microcool

44 / 57

Содержание MC 250

Страница 1: ...Microcool MC 250 MC 350 MC 600 MC 1200 Operation manual Circulation chillers V7R6 Read this manual prior to performing any task...

Страница 2: ...anslation of the original operation manual Manufacturer LAUDA DR R WOBSER GMBH CO KG Laudaplatz 1 97922 Lauda K nigshofen Germany Telephone 49 0 9343 503 0 Fax 49 0 9343 503 222 E mail info lauda de I...

Страница 3: ...s 12 3 2 Structure of the circulation chiller 12 3 3 Operating elements 17 3 3 1 Mains switch 17 3 3 2 Display buttons 17 3 4 Functional elements 18 3 4 1 LEDs for function display 18 3 4 2 Hydraulic...

Страница 4: ...t 40 6 8 1 Configuring the alarm output 40 6 8 2 Interface potential free contact 41 6 9 Enter the offset for the temperature probe 42 6 10 Restore factory setting 42 7 Maintenance 44 7 1 General safe...

Страница 5: ...ydraulic circuit 52 11 5 Voltage dependent data 52 12 General 53 12 1 Copyright 53 12 2 Technical changes 53 12 3 Contact LAUDA 53 12 4 Declaration of Conformity 53 12 5 Product Returns and Clearance...

Страница 6: ...ng one of the following measures n If relevant safety fittings are available for the device This equipment is critical to the safety of the device Appropriate maintenance activities must be implemente...

Страница 7: ...ss A digital device pursuant to Part 15 of the FCC Federal Communica tion Commission Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is...

Страница 8: ...served to ensure proper use of the device n If you wish to use your own heat transfer liquids check to ensure that the fluids are compatible with the materials used n The heat transfer liquid must be...

Страница 9: ...ctive goggles are required for certain activities These protective gog gles must comply with the legal requirements for personal protective equip ment of the European Union 1 12 Structure of warnings...

Страница 10: ...or reversible injury could occur CAUTION Type and source Consequences of not following instructions Measure 1 Measure A notice warns that dangers to property or the environment may exist NOTICE Type a...

Страница 11: ...damage immediately after delivery If the device or accessories are damaged contrary to expect ations immediately inform the shipping company so that a damage report can be compiled and the transport d...

Страница 12: ...top device with a cooling capacity of 350 watts MC 600 Air cooled floor standing device with a cooling capacity of 600 watts The pump pressure can be set via a bypass adjusting wheel MC 1200 Air cool...

Страница 13: ...Fig 1 Overview of the front MC 350 1 Filler nozzle with cover 2 Level indication 3 Operating unit 4 Front panel with ventilation openings 5 Four feet Front of the MC 250 and MC 350 V07 Microcool 13 57...

Страница 14: ...1 Overflow connection 2 Pump connection outflow 4 Rating label 5 Alarm output 6 RS 232 interface 7 Power supply 8 Drain screw 9 Ventilation openings Back of the MC 250 MC 350 V07 Microcool 14 57 3 Pu...

Страница 15: ...of the front 1 Filler nozzle with cover 2 Level indication 3 Operating unit 4 Pressure gage 5 Front panel with ventilation openings 6 Four casters with locking brake Front of the MC 600 MC 1200 V07 M...

Страница 16: ...ction outflow 2 Bypass adjusting wheel 4 Overflow connection 5 Rating label 6 RS 232 interface 7 Alarm output 8 Power supply 9 Drain screw 10 Ventilation openings Back of the MC 600 MC 1200 V07 Microc...

Страница 17: ...switches the device off 3 3 2 Display buttons 1 Up arrow button 2 Enter key 3 Down arrow button Functions in the device display can be controlled by means of the display buttons n The Enter button can...

Страница 18: ...liquid flows through The circuit essentially consists of the following components n Internal storage tank with heat transfer liquid n Pump for conveying the heat transfer liquid to the external consum...

Страница 19: ...2 Minimum level 3 4 5 Cooling unit The cooling unit consists of the following main components n Compressor A fully hermetically encapsulated compressor is used in the cooling unit The compressor is e...

Страница 20: ...rface to control certain device functions such as set temperature on a PC This allows individual programs to be developed to control the device You will find further information on the connection and...

Страница 21: ...only be operated with this distribu tion voltage and frequency Refrigerant I Designation of the refrigerant used in level 1 of the refrigerating machine Filling charge I Filling charge of the refrige...

Страница 22: ...MC requirements in Chapter 1 4 EMC requirements on page 7 WARNING Danger of the device rolling away or overturning Impact crushing Do not tilt the device Position the device on an even non slip surfac...

Страница 23: ...find further information on the pump connections of the individual devices in Chapter 11 4 Hydraulic circuit on page 52 Table 3 Hoses non insulated Type Hose nozzle Maximum permissible pressure Clear...

Страница 24: ...5 19 17 5 RKJ 112 RKJ 024 50 110 16 8 RKJ 112 RKJ 009 50 110 23 8 5 RKJ 031 RKJ 013 50 110 29 8 5 RKJ 032 Table 6 Adapter suitable for MC 600 and MC 1200 Designation Description Catalog number Hose fi...

Страница 25: ...rate will cause a drop in temperature between the device and the external consuming unit In this case increase or decrease the temperature accordingly n Secure the temperature control hoses using hos...

Страница 26: ...glycol water mixture 30 90 4 50 at 25 C LZB 109 LZB 209 LZB 309 Aqua 90 Decalcified water 5 90 1 LZB 120 LZB 220 LZB 320 Please note the following with regard to Kryo 30 n The water content decreases...

Страница 27: ...Devices with 13 ampere UK plugs 5 3 Switching on the device and filling with heat transfer liquid The device is provided with a software program from and including soft ware version 1 46 which suppor...

Страница 28: ...tive consuming units 1 Close the drain screw Turn the screw clockwise as far as it will go 2 Turn the bypass control knob counterclockwise to the fully open posi tion 3 Attach a suitable hose to the o...

Страница 29: ...tion must not be above the maximum fill level 9 Press the Enter key when the maximum or a sufficient fill level is reached The pump starts The actual temperature is shown in the display The fill level...

Страница 30: ...nsuming units with a maximum permissible working pressure below the maximum pressure of the pump This safety valve must be installed in the outflow of the device 1 To increase the pressure in the cons...

Страница 31: ...unit Monitor the level indication Refer to Chapter 5 3 Switching on the device and filling with heat transfer liquid on page 27 for detailed information on topping up the heat transfer liquid 6 2 Bas...

Страница 32: ...Fig 11 Menu V07 Microcool 32 57...

Страница 33: ...the temperature limits This range ensures that no unnecessary warnings are issued during transient processes of the temperature control The defaults can be subsequently restricted depending on the hea...

Страница 34: ...Operating personnel 1 Select the menu item for the upper temperature limit value 2 Press the input button to confirm 3 Specify the upper limit The maximum value for the upper limit is 45 C 4 Press th...

Страница 35: ...to start becomes active immediately If auto shutdown is active auto start only becomes active after the auto shutdown has elapsed n If auto start is active the remaining time period until the automati...

Страница 36: ...confirm The value must be confirmed within 4 seconds of the last entry Otherwise the display will return to the basic display 1 Select the menu item for auto shutdown or auto start 2 Press the input b...

Страница 37: ...display 3 Press the input button to confirm Your entry is automatically accepted after approx 4 seconds 6 7 2 Protocol Please note the following n The interface works with 1 stop bit without a parity...

Страница 38: ...1 contacted cable n Without hardware handshake Set the corresponding operation mode on the PC Use protected connection lines Connect the protective screen with the connector shell The lines are galva...

Страница 39: ...llowing n blank space can also be used for _ n Response from thermostat will be OK or ERR_X if there is an error XXX XX XXX X XXX XXX XXX XX XXX X XXX XXX XX XX XX X XX XX XX XX XX X XX XX X XX X X X...

Страница 40: ...or messages The following is a description of the error messages of the modules Error Description ERR_2 Wrong entry e g buffer overflow ERR_3 Wrong command ERR_5 Syntax error in value ERR_6 Impermissi...

Страница 41: ...n The contacts may be loaded with a maximum voltage of 30 V direct current DC and a maximum current of 0 2 A Fig 23 Flange plug front in fault condition View of the flange plug front or into the coupl...

Страница 42: ...chain can be adjusted or a 2 point calibration carried out with the menu item Cal A calibrated reference thermometer e g from the LAUDA DigiCal series with the desired degree of accuracy is required I...

Страница 43: ...item for restoring the factory setting 2 Briefly press the input button to confirm 3 Press and hold down the Enter key for about 3 seconds donE appears in the display The factory setting has been res...

Страница 44: ...iquid to room temperature before touching them Please also note the following n Before conducting maintenance work ensure that the device has been decontaminated after coming into contact with hazardo...

Страница 45: ...ir cooled condenser Personnel n Operating personnel 1 Switch off the device 2 Remove the front panel by grasping the bottom with both hands and pulling the grille forward Remove the front panel slowly...

Страница 46: ...e found in Chapter 8 3 Overview of warnings on page 47 If an error occurs the device emits a two tone acoustic signal In addition the red LED on the device is lit If this happens switch off the device...

Страница 47: ...75 C 8 3 Overview of warnings Warnings do not have a significant effect on safety The device continues to operate The device will make a continuous noise for a short period of time Warnings are issue...

Страница 48: ...n Observe the regulations for the disposal of used heat transfer liquid 1 Switch off the device 2 Allow the device and heat transfer liquid to cool down or warm up to room temperature 3 Place a contai...

Страница 49: ...ill pressurized Only specialized personnel are permitted to perform dis posal work The type and refrigerant charge are printed on the rating label 10 2 Device disposal The following applies for EU mem...

Страница 50: ...llution degree 2 Clearance front and back 40 cm Surge Surge category II and transient surges according to category II Protection class for electrical equipment DIN EN 61 140 VDE 0140 1 1 Classificatio...

Страница 51: ...ature is 15 C and the cooling water differential pressure is 3 bar 11 3 Refrigerant and filling charge The device contains fluorinated greenhouse gases Table 11 Devices with 230 V 50 Hz Unit MC 250 MC...

Страница 52: ...MC 350 MC 600 MC 1200 Filling volume L 2 4 4 7 4 8 7 14 maximum flow rate l min water 20 C 16 16 35 35 Maximum discharge pressure bar water 20 C 0 35 0 35 1 30 1 30 Pump connection clear in mm Hose no...

Страница 53: ...oint out that the designations and brand names of the respective companies used in the manual are generally subject to trademark brand and patent protection 12 2 Technical changes The manufacturer res...

Страница 54: ...connection with EU 2015 863 The equipment is not covered by the Pressure Equipment Directive 2014 68 EU as the maximum classification of the equipment is Category 1 and it is covered by the Machinery...

Страница 55: ...pment with the RMA number Please also enclose this fully completed declaration RMA number Product serial number Customer operator Contact name Contact email Contact telephone Zip code Place Street hou...

Страница 56: ...packing 11 Display buttons Operation 18 Disposal Packaging 49 Refrigerant 49 Disposing of refrigerant 49 Draining Device 48 E EMC 7 Error Description 46 Establish limit values temperature 34 Establish...

Страница 57: ...ment overview 9 Personnel qualification overview 8 Pressure gage Description 19 Protective equipment personal overview 9 Pump pressure Setting 29 R Rating label 14 21 Refrigerant Filling charge 52 Fil...

Страница 58: ......

Страница 59: ......

Страница 60: ...Manufacturer LAUDA DR R WOBSER GMBH CO KG Laudaplatz 1 97922 Lauda K nigshofen Telephone 49 0 9343 503 0 Fax 49 0 9343 503 222 E mail info lauda de Internet https www lauda de...

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