Temperature sensor for Rancilio and Gaggia Espresso machine

This new RTD sensor is specifically designed for measuring the temperature of an espresso machine's boiler. The sensor has a metric screw tip. The thread of the tip is M4x0.7 and is 6 mm long, identical to the thermostat tip used on Rancilio and Gaggia machines. This sensor can be directly mounted to the hole underneath the thermostat of the Rancilio Silvia, the Gaggia Classic, or the Gaggia Deluxe. Compared to the sensor mounted on the surface of the boiler, this sensor will respond more quickly to the temperature change. A faster response will ensure a more stable temperature control.

The sensor is also more accurate than commonly used thermocouple sensors. When using the thermocouple sensor with an industrial PID controller, the temperature displayed on the LED screen can be one to two degrees off the actual temperature during the warming-up period. This is because an industrial controller normally uses a very simple cold junction compensation circuit as long as it does not affect the accuracy of the working range. For a type K thermocouple, a 0.2% accuracy of the working range is about 5°F. The RTD sensor (PT100) is more accurate than a thermocouple because it does not share the same cold junction compensation issue.


Specifications:
Sensor Type: Platinum RTD, PT100 (100 ohm).
Sensor Tip Thread: M4-0.7, length 6 mm.
Housing of the Probe: Brass.
Sensor Cable: 75 cm long, TEFLON insulated.
Maximum working temperature: 350°C (650°F)
Accuracy: Class A. +/-0.15°C at 0.0°C. Alpha: 0.00385

Click Here for Temperature Vs Resistance Table

Click here for the installation guide
 

Note:

• This sensor is not compatible with Rancilio Silvia manufactured before 2000 or after May 2006. The manufacture date of Silvia is printed in the last row of the label on the bottom of the machine. If it reads 0506, it means it was made in May 2006.  

Please note this probe is not for Saeco Aroma or Starbucks Barista.