Diedrich IR- & CR-models (with sensor package and ZII/Z2.5 automation software) - Exhaust, Inlet, and Drum temperature Setup

This manual covers the RI setup for Exhaust, Inlet, and/or Drum temperature measurements for Diedrich roast machines with ZII/Z2.5 automation software to Cropster's Roasting Intelligence.

Depending on your roast machine's model, year and the Diedrich sensor package included with the machine, you may, or may not be able to track Exhaust, Inlet, and Drum temperatures.

The following article and its screenshots refer to the Roasting Intelligence (RI5). 

In case you previously used the Roasting Intelligence (RI4) we kindly invite you to check the newly improved features of RI5. 

To upgrade to RI5, please download the Roasting Intelligence (RI5).


Establishing a connection to the machine

Note: If you have a Diedrich CR-series roast machine, and you already track Inlet, and Exhaust via Diedrich PLC...
Screenshot 2024-01-17 at 15.26.48
Follow the instructions below to set up Drum temperature only.

  1. Download the Phidget driver.
  2. From RI, click Gear > Configuration bottom left to access the machine preferences screen
  3. Select Temperature sensor (Ungrounded K/J/E/T-type thermocouples) from the drop-down for Exhaust, Inlet, and Drum temperatures.
  4. Assign the Channel.
    • Inlet: Channel 1
    • Drum: Channel 2
    • Exhaust: Channel 3
  5. Select K from the Type drop-down menu.Screenshot 2024-01-17 at 15.31.54
  6. Click Save to confirm the changes.

RI will automatically restart after saving the changes. If the setup was successful you will be able to see temperature values on the right-hand side of the RI screen, after the restart.

Screenshot 2024-01-17 at 15.38.00


If you have followed the setup instructions for a measurement, but you still cannot see the temperature values for it on RI, your Diedrich roast machine may not have a temperature sensor to track the measurement in question. However, please check the following:

  • Does your Diedrich roast machine have Diedrich's sensor package (indicated by a USB port)?
    • Is the Diedrich connected to the computer via USB? 
  • Is the Phidgets driver installed?
  • Mac only: has the Phidgets driver been enabled in the Mac's Security & Privacy settings?

For further assistance, please create a support ticket by clicking the Support button in the left lower corner of the app. A Cropster support rep will get in touch with you.

Check out the Roasting Intelligence (RI5) - Getting Started manual and enjoy tracking your first roasts! More manuals and videos can be found on help.cropster.com.