The PID (Proportional-Integral-Derivative) is a mechanism that will control the
boiler heating element of the Rancilio Silvia Espresso Machine.
This mechanism, when installed properly, will increase the boiler
temperature in calculated increments in order to reach a set temperature as
called Set Value ( SV. )
By increasing the boiler temperature
in calculated increments, a constant, stable temperature is created, which
will greatly enhance the quality of coffee produced by the Silvia.
The PID controller increases the
boiler temperature in the most efficient and fastest way possible, without
overshooting the set temperature value.
The PID controller will then maintain a constant set temperature at
idle time (plus/minus 1 degree or less), producing excellent temperature
stability.
A Rancilio Silvia Espresso Machine
without a PID controller has the boiler controlled only by a mechanical
thermostat, which causes the boiler to have very wide swings in temperature,
which in turn negatively affects the temperature and taste of the coffee.
