LBB Series Oven Owner’s Manual MAINTENANCE
Version 20 43
6.4.1. Test Control Instrument
Test the Control instrument every 40 hours:
• Check that the Control instrument OUT LED is cycling ON and OFF
• Verify that the heater works
6.4.2. Test High Limit Instrument
Test the High Limit instrument every 40 hours. With the oven operating at a set temperature, set
High Limit instrument down to the setpoint operating temperature:
• The High Limit instrument is tripped when OP1 lights
• Push after adjusting the High Limit instrument back to a higher setting, or by letting
the oven temperature drop a few degrees based on the hysteresis value of the High Limit
instrument
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