{HEAD ~ Pulses} of electric current applied to the heating elements are modulated with {TAIL ~ pulse width modulation} to adjust the temperature within the chamber in response to signals emitted by a temperature sensor located within the chamber 
{ HEAD ~ Pulses } of electric current applied to the heating elements are modulated with { TAIL ~ pulse width modulation } to adjust the temperature within the chamber in response to signals emitted by a temperature sensor located within the chamber
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH