2017_E_TYPE-HL.doc Page 11 of 55 24-Oct-2017
2.2.1 Temperature Controllers
All ovens include digital temperature controllers actuated by a Type K thermocouple(s)
located in the process and oxidizer chambers. Instructions for setting up these controllers are
listed in the Appendix.
The controllers have an adjustable hysteresis for better control. This is set at the factory
and should not be adjusted unless Guspro has been consulted.
The oxidizer burner is fired automatically and remains on high fire until the
microprocessor set point is achieved. It will then cycle high/low fire to maintain the chamber
temperature. The process chamber burner does not fire until the oxidizer chamber reaches 1400
degrees Fahrenheit. The burner will then cycle high/low fire to maintain the process chamber
temperature.
Note: All ovens include an Over Temperature Suppression misting system in the process
chamber. The OTS system is activated by the process and oxidizer chamber
temperature controllers on the main panel.
2.2.2 Cycle Timer
All Guspro ovens are supplied with programmable ramp and soak microprocessor
controllers and may not have a separate cycle timer. The microprocessor controls the cycle time.
2.2.3 Fault Light
Red Fault lights located on the panel will indicate if either the process or oxidizer
chamber burners has faulted out and gone into Reset mode.
2.2.4 Oxidizer or Process Chamber Faults
If the oxidizer chamber faults out on start-up the process chamber burner will not ignite.
If the oxidizer chamber burner faults out during operation, the process chamber burner will shut
down. If the process chamber burner faults out, the oxidizer chamber burner will continue to
run. This ensures maximum environmental protection.