This PID controller kit has all the features of our other listing titled "PID temperature control kit for PID Retrofit KIT for Gaggia Classic & Home" with the addition of pre-infusion and steam temperature control.
The pre-infusion is achieved by pumping a small amount of water into the coffee, holding off the pump for a second to let water soak in, then starting the 25 second pumping. This will prevent abrupt high pressure water on the dry coffee powder that can create some fast flow channel to ruin the brewing. It will improve the consistency of the brewing even if you didn't tamp the coffee perfectly. The extraction timer contains three segments: pre-infusion pulse (Tp), soak (Td), and brew (Tb). Each segment can be set by user with 0.1second resolution. When the ">" key is pressed, the controller starts the brewing sequence automatically. The pump can be stopped at any time by pressing the ">" key a second time. This feature allows you to operate the brew pump manually, with the timer as a reference. User can also bypass the timer to use switch on the machine for manual controlling the brewing process.
The steam temperature is controlled by the same controller that controls the brew water temperature. To the user, the operation is the same as regular machine; no extra button is needed to press for frothing. When the steam switch is turned on, the on/off temperature of the heater is controlled to 1 degree (F or C) difference as compared with original thermostat's >10C (or 20F) difference. With this tight temperature control, you do not have to surf the temperature for frothing because the heater will kick on much sooner than the original thermostat. The on/off temperature can be adjusted by the user. The installation is completely reversible if you ever want to sell the machine or send it to service.
Two different colors of the controller box are offered, the silver and black. The silver box is coated with clear anodized aluminum with a brush finished stainless steel front panel. It is suitable for Gaggia Classic or other machine with silver paint. The black box has a durable powder coating. It is suitable for other colored espresso machine. Please select the color of the box at the bottom of this page.
A blue colored LED display option is offered. It will give the machine an cool look. To order this option, please check the box at the top of this page.
90 days warranty and 7 days money back guarantee is offered.
The kit works for 115 VAC and 240VAC. The default PID parameter setting is for Fahrenheit units for order shipped within US. Order shipped outside of US will be set for Celsius. Please specify if you want it changed.
This product was added to our catalog on Friday 12 August, 2011.