LBB Series Oven Owner’s Manual THEORY OF OPERATION
Version 13 23
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
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Table 2. Hi-Limit Instrument Explanations.
3.2.3.1. Product Hi-Limit Instrument
If the product being processed has a critical high temperature limit, use the Hi-Limit
instrument as a product Hi-Limit instrument. Set the Hi-Limit instrument to a
temperature somewhat below the temperature at which the product could be damaged.
3.2.3.2. Oven Hi-Limit Instrument
If the product being processed does not have a critical high temperature limit, use the Hi-
Limit as an oven Hi-Limit instrument to protect the oven equipment. Set the Hi-Limit to
204°C.
Output 1 status value. (OP2 normally not used for LBB Ovens).
Degree indicator.: Celsius or Fahrenheit
High limit setpoint 1. (LSP1 typically not used for LBB Ovens).
Setpoint 2 for output 2 (typically not used for LBB Ovens)
Scroll Key, used for advancing available displays
Increases a setpoint or mode parameter
Decreases a setpoint or mode parameter
Reset the high limit, return to normal display
Figure 5. Hi-Limit Instrument.
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