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Service work

Barkey GmbH & Co. KG  -  Gewerbestrasse 8  -  33818 Leopoldshoehe – Germany  -  Head Office: +49 (5202) 9801-0

39

Customer Service: +49 (5202) 9801-30  Fax: +49 (5202) 9801-99  -  e-mail: [email protected]

Service manual

Barkey warming center III DTM

7.13 

Service tools

You will require the following tools to carry out the service work described in this chapter:

Summary of Contents for warming center III DTM

Page 1: ...Service manual Barkey warming center III DTM with digital temperature display From SN 160 5986 Version 1 00 EN Manufactured by Barkey GmbH Co KG Gewerbestrasse 8 D 33818 Leopoldshoehe Germany...

Page 2: ......

Page 3: ...2 Displays and controls 10 5 Technical safety inspections TSI 11 5 1 Visual inspection 11 5 2 Temperature check 12 5 3 Checking the overtemperature protection 13 5 4 Measurements in accordance with DI...

Page 4: ...er Service 49 5202 9801 30 Fax 49 5202 9801 99 e mail info barkey de Service manual Barkey warming center III DTM 7 13 Service tools 39 8 Appendix 42 8 1 Cross section of Barkey warming center III DTM...

Page 5: ...to faults or damages You should also observe the requirements made on the qualifications of service personnel as stated in Chapter 1 3 It is imperative that the installation conditions and safety inf...

Page 6: ...llowing symbol in instructions about the use and maintenance of the device Instruction stage carry out this stage as indicated NOTE The symbols representing the displays and controls and device displa...

Page 7: ...ts if the device is used in accor dance with the published operation and service manual this documentation 1 5 Copyright This service manual including all images contained within is protected by copyr...

Page 8: ...ll inspection steps for the TSI which have to do with tem perature measurements must be carried out at a room tem perature of 22 Celsius 1 0 K During measurements the device may not be subjected to di...

Page 9: ...increase the distance between the device and the device causing the dis turbance or operate the devices at separate times The device works perfectly within the limit values set in the EN 60601 1 2 st...

Page 10: ...has been switched on It shows the device operating condition Heating activity display The yellow lamp LED shows the heater activ ity It illuminates when the heater is active Fault display The red ligh...

Page 11: ...onforms with EU Directive 93 42 EWG of 14th June 1993 for medical products The four digit number identifies the stated location T V Product Service which monitors the manufacturer s quality assurance...

Page 12: ...perating display Fault display Heating activity display Temperature display Figure 2 Display panel The following subsections explain the meaning of individual display elements 4 1 1 Operating display...

Page 13: ...display indicates malfunctions If the heating device is switched on this display has the following meanings Status Meaning Off There are no malfunctions On The mechanical overtemperature protection ha...

Page 14: ...display red lamps illuminating or flashing To switch the device on press the rocker switch into position I Figure 3 Power switch The TSI keyswitch on the right hand side of the operating panel is als...

Page 15: ...inspections WARNING In order to carry out safety inspections you must remove all temperature regulated goods from the temperature regulated cabinet and store them in accordance with their respective...

Page 16: ...room temperature must be at 22 0 C 1 0 K during the entire temperature check Incorrect values will be measured if this is not the case Fix the thermometer in the middle of the centre shelf When doing...

Page 17: ...Barkey warming center III DTM is fitted with two independent mechanisms to protect it from high temperatures One of these is the electronic overtemperature protection In this case an independent elect...

Page 18: ...alue of the temperature display when the electronic overtemperature pro tection is triggered and enter this in the inspection log WARNING If the value determined lies outside the prescribed tolerance...

Page 19: ...alid edition When carrying out the inspection you must also read and observe the test equipment operating manual Enter the type and serial number of the test equipment in the inspection log Connect th...

Page 20: ...anel will be perma nently illuminated The circulating air temperature regulation will be activated at the same time This will be audible due to the ventilator noise Enter whether the circu lating air...

Page 21: ...ive manufacturer s instructions 6 1 Adjusting the temperature display If the temperature displayed on the Barkey warming center III DTM temperature display does not match the temperature in the heatin...

Page 22: ...setting needs to be corrected Check the temperature in the heating chamber and the temperature indicated on the temperature display as described in Chapter 5 2 Switch the device off and remove the mai...

Page 23: ...ove the mains cable Remove the cover on the Barkey warming center III DTM insert Figure 12 Regulator circuit board cover panel Correct the electronic overtempera ture protection setting using trimmer...

Page 24: ...enter III DTM WARNING In order to carry out service work you must remove all temperature regulated goods from the heating chamber and store them in accordance with their respec tive manufacturer s ins...

Page 25: ...33818 Leopoldshoehe Germany Head Office 49 5202 9801 0 21 Customer Service 49 5202 9801 30 Fax 49 5202 9801 99 e mail info barkey de Service manual Barkey warming center III DTM 7 1 Functional circui...

Page 26: ...ust remove the plug from the mains before opening the device Removal Loosen both screws which are used to fix the heater insert Figure 15 Heater insert fixing screws Pull the heater insert halfway out...

Page 27: ...plate on the heater insert and fix it with the six countersunk screws WARNING Ensure that the earthing cable is not crushed Place the heater insert on the guide rails and push it halfway into the heat...

Page 28: ...er plate see Chapter 7 2 Now pull the three pin and socket connectors off the regulator circuit board Figure 17 Pin and socket connectors on regulator circuit board Remove the four regulator circuit b...

Page 29: ...r to removal Re solder the buzzer cables in place CAUTION Ensure the cable polarity is correct Locate the regulator circuit board onto the assembly frame bolts Fix the regulator circuit board with the...

Page 30: ...ater connection Cut the three cables which are fixed in a common cable end sleeve directly at the ca ble end sleeve Loosen the four heater unit screws and pull the heater unit out towards the front Fi...

Page 31: ...one ca ble end sleeve Reconnect both cables to the regula tor circuit board pin and socket con nector The three cables are connected un derneath Figure 22 Heater connection Refix the cover plate see...

Page 32: ...re 25 Fan fixing Refitting the transverse airflow fan Refitting the transverse airflow fan takes place in reverse order to removal Pull the fibreglass hose off the old fan connecting cable Cut the cab...

Page 33: ...ed conductor connection to the fan Figure 27 Fan earthed conductor connection Strip the insulation off all four cables for around 8 mm Crimp a cable end sleeve onto the fan blue cable Now crimp the ot...

Page 34: ...pull the heater unit out towards the front Figure 29 Heater unit fixing screws Loosen the screw which fixes the overtemperature protection to the heater unit Figure 30 Overtemperature protection fixi...

Page 35: ...socket connectors are plugged together with the flat side facing downwards otherwise the cover plate cannot be correctly refitted Insert the temperature protection into the heater unit and fix it from...

Page 36: ...Press the power switch forwards out of the front panel Refitting the power switch Refitting the power switch takes place in reverse order to removal Press the power switch into the front panel cutout...

Page 37: ...panel Refitting the fuseholder Refitting the fuseholder takes place in reverse order to removal Press the fuseholder into the cutout in the front panel and tighten the nuts using a 14 mm jaw spanner...

Page 38: ...l to the rear Pull the spade connectors off the microswitch Refitting the microswitch Refitting the microswitch takes place in reverse order to removal Press the microswitch into the cutout in the fro...

Page 39: ...w spanner and pull it forwards off the front panel Refitting the keyswitch Refitting the keyswitch takes place in reverse order to removal Use the key to switch the keyswitch into the left hand positi...

Page 40: ...9 5202 9801 30 Fax 49 5202 9801 99 e mail info barkey de Service manual Barkey warming center III DTM Push the shrinkage hose over the keyswitch Use a hot air blower to shrink it Figure 37 Keyswitch i...

Page 41: ...circuit board must be replaced Fuses Type Power connector 2 A slow blow 250V 5 mm x 20 mm Regulator circuit board 500 mA slow blow 250V 5 mm x 20 mm Table 1 Fuse values Replacing the power connector f...

Page 42: ...disinfectants directly to the inside of the heating cabinet Always moisten a cloth and clean the heating cabinet using this cloth Never put cleaning fluids or cleaning cloths in the air ducts Never u...

Page 43: ...ermany Head Office 49 5202 9801 0 39 Customer Service 49 5202 9801 30 Fax 49 5202 9801 99 e mail info barkey de Service manual Barkey warming center III DTM 7 13 Service tools You will require the fol...

Page 44: ...sse 8 33818 Leopoldshoehe Germany Head Office 49 5202 9801 0 Customer Service 49 5202 9801 30 Fax 49 5202 9801 99 e mail info barkey de Service manual Barkey warming center III DTM Figure 38 Service t...

Page 45: ...01 0 41 Customer Service 49 5202 9801 30 Fax 49 5202 9801 99 e mail info barkey de Service manual Barkey warming center III DTM 2 5 mm Allen key screwdriver Socket spanner size 5 5 mm Flat screwdriver...

Page 46: ...02 9801 30 Fax 49 5202 9801 99 e mail info barkey de Service manual Barkey warming center III DTM 8 Appendix 8 1 Cross section of Barkey warming center III DTM Figure 39 Cross section of Barkey warmin...

Page 47: ...N of the device for which you are ordering This is extremely important for reasons of traceability Description Item No Regulator circuit board wc V3 0 413 10872 Heating rod 230V 200W 412 10497 Transve...

Page 48: ...II DTM 8 3 Address contact Address Barkey GmbH Co KG Gewerbestr 8 D 33818 Leopoldshoehe Tel 49 5202 9801 0 Fax 49 5202 9801 99 e mail info barkey de Internet www barkey de Service Tel 49 5202 9801 30...

Page 49: ...nts not OK OK 1 Visual inspection No damage to housing No damage to heating chamber or door No external damage to connecting cables or connecting plugs No signs of overloading or improper handling No...

Page 50: ...vice type serial number ________________________________________ Earth conductor res incl power cable RSL 0 2 _________ Insulation resistance RISO 2 M _________ M Earth leakage current IEanc 0 5 mA __...

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