The Choice Of Quality Sinc User Manual Portable
Contents
1. The Choice Of Quality User Manual Portable Electrode Ovens HO5 08 HO8 015 E015 P04 www mitrewelding co uk Phone 44 0 161 669 9019 Safety e The portable oven sold with this manual should not be used for any purpose other than that for which it was designed e Before operating the oven it is advised that this user manual is read and understood by all users Accidents and potential risks can be reduced by a thorough knowledge of the ovens operations and ideal working environment e tis important that the manual is kept in a tidy condition for any future reference if a manual is misplaced or damaged a replacement can be obtained from Mitre Welding e Do not damage or remove the safety and rating labels from the oven All mineral coated electrodes begin absorbing moisture once they are unpacked Welding with moist electrodes leads to increase arc spatter undercutting and poor slag removal Other side effects include porosity underbead cracking and generally low grade welds The range of ovens provides facilities for every application where quality welds are required NOTE ELECTRODES MUST ALWAYS be removed from their wrappers or packets prior to heating Failure to do so will result in an increased risk of fire and moisture not being carried off and being re absorbed into the coating when the electrodes cool e Inthe event of danger such as fire or overheating it is important that the electrical supply be switched off at th2. between the thermostat terminals Par Spare Part N 110 240 V y Neon Indicator 48 85 V Element 48 85V 204 060 Element 110v 204 06 Element 240 V 204 062 Thermostat 700 200 204 060 48 85V 204 061 110V 204 062 240V 100 001 110V 240V 00 002 48 85V 700 200 999 000 usss Y lt e Thermostat T Neutral Neutral Mitre EQ15 110V 240V Mitre EQ15 48 85V O O O El E1 48 85V Versions are fitted with a capacitor between the thermostat terminals Mitre P04 700 320 Neon Indicator 100 001 110 240V 100 001 Dual Voltage 203 001 Element Door Thermostat 700 320 Voltage 999 005 600 007 203 001 600 008 d Mitre P04 Neon 7 o Live Thermostat m Neutral O El E2 em reme e retine wee o TTT 0 0 ha ner sv Crone seze mea eee memos sisme Solid State Relay 90 240V 3 32Vdc S50 S SD6 SH5 Digital Controller 101 050 40Amp 300 019 HT4 Digital Controller 101 060 Door Catch 600 007 MY 05738 em SBR memos amete O aao zen senem aaa Gm amor seren gm eat 1805001128 Element 08 015 ven semen asar G om Dual voltage guiver element 110 240V 150W 203 009 Thermometers 20 2751 1000 are Coren BENE I voras E Useful Information v ENE NE EAE D we ENGEL NE ae General conditions Mitre guarantees the product men
3. switch 7 Reassemble in the reverse order HEATED INSULATED QUIVER Q8 EQ8 Q15 amp EQ1S Thermostat replacement 1 Switch off and disconnect the oven from the electrical mains supply 2 Retain all screws nuts etc for re assembly 3 Stand the oven on its front edge and remove the four screws securing the base panel 4 Remove the thermostat knob amp the bezel retaining screws 5 Note the electrical connections before removing any terminations 6 Remove the wires from their terminals 7 Remove the thermostat 8 Re assemble in the reverse order Element replacement Q8 amp Q15 1 Carry out points 1 4 of thermostat replacement 2 Note the position of the element terminations and remove the Fastons 3 Remove the two screws retaining the Element assembly 4 Remove the element assembly and replace with new 5 Reassemble in the reverse order Element replacement EQ8 amp EQ15 I Carry out points 1 4 of thermostat replacement 2 Note the position of the element terminations and remove the Fastons 3 Un tighten the nut retaining the heat sink and element assembly on the back of the inner body 4 Remove the heatsink clear of the element 5 Remove the element assembly and replace with new 6 Reassemble in the reverse order PORTABLE Dnviuc Rop OVEN P04 Thermostat replacement 1 Switch off and disconnect the oven from the electrical mains supply 2 Retain all screws nuts etc for re assembly 3 Stand the oven
4. the product is to be incorporated into a machine or system The following harmonized standards have been used EMC emission and immunity EN 61000 6 2 2005 EN 61000 6 2 2005 AC 2005 EN 61000 6 3 200 EN 61000 6 3 2007 A1 2011 EN 61000 6 4 200 EN 61000 6 4 2007 A1 2011 LVD EN 60204 1 2006 EN 60204 1 2006 A1 2009 EN 60529 1991 EN 60529 1991 A1 2000 EN 60529 1991 AC 1993 EN 50525 1 2011 EN 50525 2 11 2011 EN 50525 2 12 2011 EN 50525 2 21 2011 EN 50525 2 1 2011 The electrical equipment is CE marked 2015 Unit 5 Station Road Furness Vale High Peak SK23 7QA United Kingdom Tel 44 0 161 669 9019 www mitrewelding co uk sales mitrewelding co uk
5. 005 48 85V 203 006 110V 203 007 240V 100 001 110V 240V 100 002 48 85V F 999 000 48 85V Live Tm lt e Thermostat Neutral Thermostat H Capacitor Neutral 9 Mitre Q8 48 85V a s E1 48 85V Versions are fitted with a capacitor between the thermostat terminals Par Spare Part Neon Indicator 110 240V 100 001 Neon Indicator Element 48 85V 204 060 Element 110 204 061 Element 240 V 204 062 Thermostat 700 200 204 060 48 85V 204 061 110V 204 062 240V 100 001 110V 240V 100 002 48 85V 700 200 999 000 48 85V L lt e Thermostat Thermostat a Capacitor Neutral Neutral Mitre EQ8 110 240V Mitre EQ8 48 85V El E1 48 85V Versions are fitted with a capacitor between the thermostat terminals Mitre Q15 Part 999 003 spare Pari lumber Neon Indicator 100 00 AC Neon Indicator 1 00 002 18 0 Element 110V 203 006 Element 240V 203 007 Thermostat 700 200 Capacitor 48 85V 999 000 ermometer 999 003 ug E edo sl 203 005 48 85V 203 006 110V 203 007 240V 100 001 110V 240V 100 002 48 85V 700 200 999 000 48 85V lt e Live Thermostat Capacitor Neutral Thermostat Neutral Mitre Q15 110V 240V Mitre Q15 48 85V El E1 48 85V Versions are fitted with a capacitor
6. e first sight of danger e Take great care when removing electrodes from the oven after heating wear gloves and take care the oven may still be very hot e Undergo all operations with general due care and attention Electrical Information To ensure that your Mitre Welding product 1s electrically safe it is important to ensure that a suitably rated fuse is used in the plug when using the oven By following simplistic electrical codes of practice such as Ohms law and the Power Triangle determining the correct and appropriately rated fuse is used Below is a explanation of these em Power Triangle P VI electrical theories Ohms Law V IR V Voltage ox ow o ow 03 3 1 9 35 Lom o 39 99 oe 8 99s 34 m 1 1 1 Power Output Capacity Max Temp HQ5 24V 48 85V 110V 240V Q8 7KG 190 C 48 85V 110V 240V EQ8 7KG 190 C 48 85V 110V 240V Q15 11KG 200 C 48 85V 110V 240V 9 110 C 150Watt 300Watt 2 5 Watt 300 Watt EQ15 15KG 190 C 275 Watt 48 85V 110V 240V PO4 14KG 320 C 300 Watt 110V 240V Dual Voltage Installation The oven is shipped in a durable cardboard box to provide protection during shipment wherever possible try to re use the box or dispose it in an environmentally responsible way Great care should be taken with the ovens location and operating environment please cons
7. ider the following to ensure your Mitre Portable Oven is located safely e Where possible place the oven on flat or level ground avoid slanted uneven and undulating surfaces or any environment in which the oven could become unstable or fall over completely Ensure the ovens power cable is not subject to high tension always provide some slack Do not place the oven in places where it could be subject to draft or high levels of humidity Once the oven is placed in its optimal location adhere to the following guidelines for an efficient and safe installation e Check that the mains electrical supply is suitable for the oven The voltage and power requirements are given on the rating plate located next to the mains supply cable e Connection to the mains electrical supply should be made via an appropriately fused plug for a portable oven e tis recommended that the earth lead is connected with provision for some slack so that in the event of the cable coming under stress the earth wire 1s the last to be affected The colour coding of the mains supply is as follows Single Phase Operating Instructions Portable Quiver HQ5 Starting the oven mE Ensure the oven is sitting steadily Open the door and fill with desired quantity of electrodes amp close door firmly Securely plug the oven into a suitable power source and switch on the supply The oven will now start to heat up to maximum temperature it may be necessar
8. on its front edge and remove the four screws securing the base panel 4 Remove the thermostat knob amp the bezel retaining screws 5 Note the electrical connections before removing any terminations 6 Remove the wires from their terminals 7 Remove the thermostat 8 Re assemble in the reverse order Element replacement I Carry out points 1 4 of thermostat replacement 2 Note the position of the element terminations and remove the nuts and washers 3 Remove the two screws retaining the Element assembly 4 Remove the element assembly and replace with new 5 Reassemble in the reverse order Extraordinary maintenance Periodically check the quality and connection of electrical wires and components and replace where necessary In the case of any further problem please contact your dealer or directly to Mitre Welding who are on hand to help resolve your problem 100 003 999 Mitre HQ5 203 002 24V 203 003 48 85V 203 004 110V 203 005 240V 999 002 Neon Switch Where Fitted Mitre HQ5 Cut Out HEUTRAL 0 w LS E1 00 3 H 600 008 Par Neon Switch 100 003 Element 24V 203 002 Element 48 85 V 203 003 Thermal Cut Out 24V 48 85 V 999 002 Mitre Q8 999 003 Spare Part Neon Indicator 100 001 O AQ Neon Indicator 100 002 Element Element 110V 203 006 Element 240V 203 007 Thermostat 700 200 Capacitor 48 85V 999 000 Tnermometer 203
9. refore where lamellar tearing is a problem re drying at 450c for 60 minutes 1s often carried out Prolonged Drying Periods Some fabricators who are concerned to obtain the highest possible radiographic standards of weld metal have developed a technique whereby the electrodes on completion of drying remain in the oven at full temperature until they are required for use The technique is very effective in providing thoroughly dry electrodes but may tend to decrease the strength of the coating It is suggested therefore that the maximum drying period for various re drying temperatures should be set as follows Drying Maximum Period at Temperature Temperature Maintenance Planning of routine maintenance is an essential part of ensuring your Mitre Welding product is kept in the best possible condition and to ensure continual efficient operation Always conduct maintenance when the oven is out of service Always ensure that the power cable is in good condition free from breakages or tearing NOTE Check that the oven is cool before commencing maintenance work HEATED Quiver HQ5 Element and Switch Replacement 1 Switch off and isolate the quiver from the mains supply 2 Retain all screws 3 Turn the quiver and remove the four screws securing the base panel 4 Remove the two screws from the element anchor 5 Remove the element and replace as necessary 6 To replace switch note connections remove leads from the terminals and replace the
10. tioned in this manual for a period of 12 twelve months from the date of delivery The warranty is valid for the above mentioned period and only for the parts that will have defect of design or defective material Mitre Welding will give you further instructions for repairing or replacing the complained parts free of charge Any transport expenses will be covered by the customer Limitations Mitre Welding Products Ltd is not and will not be responsible for Improper use of the oven A use against the national and or International regulations in force where applicable Improper or wrong connection Improper or insufficient care and maintenance Unauthorized modifications and or services Use of non original spare parts or non specific components Partial or total Inobservance of the instructions Declaration of Conformity Incorporation The electrical equipment which accompanies this declaration is in conformity with EU Directive s 2006 95 EC Low Voltage Directive 2004 108 EC Electromagnetic Compatibility Directive HEATED ELECTRODE QUIVER HQ5 Q8 EQ8 Q15 EQ15 PO04 The Technical Construction File is maintained at MITRE WELDING PRODUCTS LTD Only for Declaration of Incorporation This electrical equipment covered by this Declaration must not be put into service until the machinery into which it is to be incorporated has been declared in conformity with the provisions of the applicable Directive s This statement is only necessary where
11. y to turn on the neon switch where fitted Portable Rod Oven Q8 EQS O15 EQIS Starting the oven 1 Complete steps 1 3 from HOS startup instructions Turn the thermostat bezel to the desired temperature a click can be heard as the thermostat is switched on 3 The oven will now heat up to its target temperature set by the operator the neon indicator will go out when the oven reaches its set target Portable Rod Oven P04 Starting the oven l Ensure that the voltage selector switch 15 set to the desired operating voltage Complete steps 1 3 of HQS startup instructions Turn the thermostat bezel to the desired temperature a click can be heard as the thermostat is switched on The oven will now heat up to its target temperature set by the operator the neon indicator will go out when the oven reaches its set target Operating Recommendations Re drying Temperatures The temperature at which basic electrodes should be re dried depends on the level of hydrogen considered permissible in the deposited weld Recommended re drying temperatures to reduce hydrogen content to various limits are as follows Type Temperature after Opening Typical Reconditioning environment g environment Low Hydrogen Low Hydrogen 80 100 C 90 Minutes High Tensile Inconel Monel Hard surfacing 65 C 95 C Note It has been suggested that the presence of even the smallest amount of hydrogen can adversely affect lamellar tearing The
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