*If the temperature or humidity sensors are not reading correctly, these sensors can easily be calibrated by the user. Follow the procedures below.*

To calibrate temperature or humidity on the TrolMaster HCS-1 or HCS-2, you will first need an accurate “reference” temp and humid reading from an accurate thermo-hygrometer. The important thing is to obtain a good point to calibrate the sensors to, you first need to know with confidence that the calibration will be correct when complete. Use either a high-quality / high-accuracy portable temp & humid meter or use multiple thermo-hygrometers located in the same location of the TrolMaster sensor you are trying to calibrate.

Once you have established what you believe to be the correct measured temp or humidity levels, you can then re-calibrate the TrolMaster’s sensors to that reading.

1)  On the HCS-1 go to System – Calibration. / 
On the HCS-2 select the Settings tab in the upper right corner on the main screen, then select calibration.

2)  Next select the item you want to calibrate.

3)  Using your observed reference temperature or humidity reading, change the calibration on the TrolMaster controller to read the same readings. Press Enter or Save.

4)  The sensor is now calibrated to your new reference point.