background image

A

BOUT 

T

HIS 

M

ANUAL

 

LAC Series Oven 

Owner’s Manual 

 

 

 

Version 10

 

 

 

 

 

 

 

Copyright © 2011 by Despatch Industries. 

All rights reserved. No part of the contents of this manual may be reproduced, copied or transmitted in any form or by any 
means  including  graphic,  electronic,  or  mechanical  methods  or  photocopying,  recording,  or  information  storage  and 
retrieval systems without the written permission of Despatch Industries, unless for purchaser's personal use. 

6.1.

 

Checklist ..................................................................................................... 29

 

6.2.

 

Lubrication .................................................................................................. 30

 

6.3.

 

Routine Tests .............................................................................................. 30

 

6.4.

 

Door Adjustment ......................................................................................... 30

 

6.5.

 

Replacement Parts ....................................................................................... 30

 

6.5.1.

 

Replace the Protocol Plus Controller ...................................................... 31

 

6.5.2.

 

Replace Heater Unit ................................................................................ 31

 

6.5.3.

 

Replace Fan Motor .................................................................................. 32

 

7.

 

Troubleshooting .................................................................................................... 34

 

7.1.

 

Troubleshooting Error Messages and Alarms............................................. 34

 

7.2.

 

Troubleshooting Symptoms ........................................................................ 34

 

8.

 

Appendices ............................................................................................................ 36

 

8.1.

 

Standard Products Warranty ....................................................................... 36

 

8.2.

 

Electrical Schematics .................................................................................. 37

 

 

Figures 

Figure 1. LAC High-performance Bench-top Oven. ........................................................ 16

 

Figure 2. Horizontal Airflow through the LAC Oven. ..................................................... 16

 

Figure 3. Damper Positions............................................................................................... 17

 

Figure 4. Protocol Plus Displays and Control Buttons. .................................................... 19

 

Figure 5. LAC-6 Series Oven Nameplate. ........................................................................ 22

 

Figure 6. Rear Access Panel for Hard-Wired Connections. ............................................. 23

 

Figure 7. Hinged Panel for Simpler Access to Power Connections. ................................ 23

 

Figure 8. Power Connections at Main Circuit Board. ....................................................... 24

 

Figure 9. Remove Screws to Remove Floor Plate. ........................................................... 31

 

Figure 10. Heater Panel and Inlet Cone. ........................................................................... 31

 

Figure 11. Remove Screws to Remove Side Panels. ........................................................ 32

 

Figure 12. Remove Heater Panel by Removing Screw in Front Edge of Each Panel. ..... 32

 

Figure 13. LAC1-10-6 (Excerpt from drawing 146271D01)............................................ 38

 

Figure 14. LAC1-38A-6 (Excerpt from drawing 146273D01). ........................................ 38

 

Figure 15. LAC1-38B-6 (Excerpt from drawing 146275D01). ........................................ 38

 

Figure 16. LAC1-67-6 (Excerpt from drawing 146277D01)............................................ 38

 

Figure 17. LAC2-12-6 (Excerpt from drawing 146279D01)............................................ 38

 

Figure 18. LAC2-18-6 (Excerpt from drawing 146281E01). ........................................... 38

 

 
Tables 

Table 1. MRC 5000 Settings. ............................................................................................ 25

 

Table 2. Error Messages and Next Steps. ......................................................................... 34

 

Table 3. Troubleshooting Oven Symptoms. ..................................................................... 35

 

 

Summary of Contents for LAC 1-10-6

Page 1: ...manual may be reproduced copied or transmitted in any form or by any means including graphic electronic or mechanical methods or photocopying recording or information storage and retrieval systems wit...

Page 2: ...rchaser s personal use Revision History Revision Date Author Description B Updated contents of Drawings Section Updated Protocol Plus instructions C Added Operating Environment note to Operating secti...

Page 3: ...Lockout Requirements 12 2 1 1 2 Lockout Procedure 12 2 1 2 Door and Panel 13 2 2 Maintenance 13 2 3 Electrical Power 13 2 4 Fire 14 2 5 Equipment Lockout Requirements 15 2 5 1 Emergency Stop 15 3 Theo...

Page 4: ...High performance Bench top Oven 16 Figure 2 Horizontal Airflow through the LAC Oven 16 Figure 3 Damper Positions 17 Figure 4 Protocol Plus Displays and Control Buttons 19 Figure 5 LAC 6 Series Oven N...

Page 5: ...urchaser s personal use Printed and bound in the United States of America The information in this manual is subject to change without notice and does not represent a commitment on the part of Despatch...

Page 6: ...thermal processing for over 100 years Technical expertise gained over those years helps provide innovative solutions to critical applications in vertical markets and cutting edge technology worldwide...

Page 7: ...Failure to heed warnings in this instruction manual and on the oven could result in personal injury property damage or death 1 4 Conventions This icon signifies important information This icon signif...

Page 8: ...1 38A 18 75 48 18 46 19 48 3 7 105 28 71 25 64 35 5 90 9 2 6 4 1 38B 18 75 48 18 46 19 48 3 7 105 28 71 25 64 35 5 90 9 2 6 4 1 67 23 75 60 20 51 24 61 6 6 187 36 91 27 69 40 5 103 11 2 6 4 2 12 23 75...

Page 9: ...of Despatch Industries unless for purchaser s personal use 1 5 2 Capacities LAC 6 Model Number 1 10 6 1 38 A 6 B 6 1 67 6 2 12 6 2 18 6 Maximum Load Lbs Kg 150 68 175 79 250 113 300 136 300 136 Maxim...

Page 10: ...may overload or run hot If the line voltage is higher than the nameplate rating motors may run hot and draw excessive amperage Model Volts Amps Hertz Phase Heater KW Cord and Plug LAC 1 10 6 120 10 0...

Page 11: ...nal use 1 5 4 Temperature LAC 6 Model Number 1 10 1 38 A 1 38 B 1 67 2 12 2 18 Time to Temperature 40 C 100 C approximate minutes 40 C 200 C with no load 40 C 260 C 8 25 40 9 32 60 6 22 36 6 20 34 6 1...

Page 12: ...Oven into a zero energy state and prevents accidental machine start up Always follow the Lockout Procedure described in this Section before cleaning maintaining or repairing the LAC 6 Series Oven An a...

Page 13: ...The control panel on the LAC 6 Series Oven protect against hazards Operation without the control panel in place creates hazards that the control panel is intended to render safe for personnel 2 2 Mai...

Page 14: ...en Never modify any electrical circuits Unauthorized modifications can impair the function and safety of the LAC 6 Series Oven 2 4 Fire Keep the LAC 6 Series Oven clean and free of scrap materials oil...

Page 15: ...ng recording or information storage and retrieval systems without the written permission of Despatch Industries unless for purchaser s personal use 2 5 Equipment Lockout Requirements To prevent injury...

Page 16: ...teel walls to create a constant horizontal airflow across all sections of the oven Figure 2 The result is proven reliability in demanding production and laboratory applications such as curing drying s...

Page 17: ...uniformity and most importantly the desired operating temperature Additionally engineering tradeoffs for each factor must be carefully weighed While considering each factor independently may be too da...

Page 18: ...fic performance factors uniformity and cool down rates Chamber Uniformity The system s inside chamber pressure influences chamber uniformity Pressure inside the chamber depends on the amount of fresh...

Page 19: ...ge and retrieval systems without the written permission of Despatch Industries unless for purchaser s personal use 3 3 The Protocol Plus Controller The Protocol Plus controller has two displays A dedi...

Page 20: ...lenses Check the door and latch for smooth operation 4 1 1 If Damaged During Shipping If damage occurred during shipping 1 Contact the shipper immediately and file a written damage claim 2 Contact Des...

Page 21: ...e power supply meets Despatch specifications If the facility power supply is not stable Despatch recommends a line conditioner 4 2 2 Set up Procedure 1 Place oven on bench top or optional cabinet base...

Page 22: ...for purchaser s personal use 4 2 3 Wiring Power Connections Read the Model LAC 6 name plate top of oven or top of control area under the door for proper power requirements before proceeding with wiri...

Page 23: ...patch Industries unless for purchaser s personal use Power cord fitting or conduit Access plate to assist in tightening conduit fitting 4 2 3 1 Wire LAC 6 Models 2 12 and 2 18 For units that must be h...

Page 24: ...retrieval systems without the written permission of Despatch Industries unless for purchaser s personal use 3 Connect power at main circuit board access by opening hinged control panel terminals L1 a...

Page 25: ...p the recorder by 1 Ensure hardware jumper JU1 is in place for the 5 VDC setting Refer to MRC5000 Manual included 2 Move Mode to PROG TEST CAL to display Prog 3 Press twice to display Inps Move to eac...

Page 26: ...ction Association NFPA Section 86 of 1990 5 1 Load Oven Despatch Industries cannot be responsible for either the process or process temperature used or for the quality of the product being processed I...

Page 27: ...d containers of any substance or liquid in this oven because they may explode under heat Know the system Read this manual carefully Make use of its instructions and explanations Safe continuous satisf...

Page 28: ...r purchaser s personal use 5 3 Operating Procedure For fastest oven heat up time close the fresh air vent After the desired temperature is reached the vent may be adjusted as needed 5 3 1 Start Oven 1...

Page 29: ...it Protect controls against excessive heat particularly controls motors or other equipment containing electronic components Temperatures greater than 51 5 C 125 F should be avoided Establish maintenan...

Page 30: ...and go to Manual Mode Enter a control setpoint value at least 20 F 11 C lower than the current process temperature 2 Press Menu and lower the high limit setpoint to a value just below the current proc...

Page 31: ...national Main 1 952 469 5424 US toll free 1 888 337 7282 Fax 1 952 469 4513 info despatch com www despatch com Service 1 952 469 8230 US toll free 1 800 473 7373 Fax 1 952 469 8193 Service despatch co...

Page 32: ...ater and discard 6 Screw down the new heater frame 7 Attach the heater leads to appropriate terminals 8 Replace and screw in interior floor and side panels 6 5 3 Replace Fan Motor Tools needed T20 Tor...

Page 33: ...ing on the air outlet of the assembly and pushing from underneath 12 Remove heater do not disconnect wires 13 Remove the fan inlet plate 14 Loosen the set screws 2 on fan wheel and remove wheel 15 Rem...

Page 34: ...gram a slower ramp rate or if oven is not heating check heater circuit Top LED displays OPEN and lower LCD displays CONTROL SENS ERR Control thermocouple is disconnected or broken Repair or replace th...

Page 35: ...sult factory Fan motor failure Replace fan motor Frequent heater element out Harmful fumes generated by load Increase vent opening or discontinue process Spillage or splattering of material on heater...

Page 36: ...of this manual may be reproduced copied or transmitted in any form or by any means including graphic electronic or mechanical methods or photocopying recording or information storage and retrieval sys...

Page 37: ...y form or by any means including graphic electronic or mechanical methods or photocopying recording or information storage and retrieval systems without the written permission of Despatch Industries u...

Page 38: ...this manual may be reproduced copied or transmitted in any form or by any means including graphic electronic or mechanical methods or photocopying recording or information storage and retrieval system...

Page 39: ...his manual may be reproduced copied or transmitted in any form or by any means including graphic electronic or mechanical methods or photocopying recording or information storage and retrieval systems...

Page 40: ...his manual may be reproduced copied or transmitted in any form or by any means including graphic electronic or mechanical methods or photocopying recording or information storage and retrieval systems...

Page 41: ...this manual may be reproduced copied or transmitted in any form or by any means including graphic electronic or mechanical methods or photocopying recording or information storage and retrieval system...

Page 42: ...this manual may be reproduced copied or transmitted in any form or by any means including graphic electronic or mechanical methods or photocopying recording or information storage and retrieval system...

Page 43: ...this manual may be reproduced copied or transmitted in any form or by any means including graphic electronic or mechanical methods or photocopying recording or information storage and retrieval system...

Page 44: ...for purchaser s personal use 3rdDraft GLOBAL HEADQUARTERS Despatch Industries 8860 207th Street West Minneapolis MN 55044 USA US toll free 1 888 337 7282 international main 1 952 469 5424 fax 1 952 4...

Reviews: