How to calibrate the HB Products Mk2 Defrost Sensor for accurate readings

[LeAllison]

Calibrating your HB Products Mk2 Defrost Sensor is crucial for precise measurements. Here's a comprehensive guide: Basic Calibration: Input the active wire length and fin distance; the sensor calculates the basic calibration. Make sure the evaporator is dry and free of ice before calibration. Calibration Using the Green Button: Press the green button until the red LED turns off. Press the green button once to finish calibration. Calibration Using the HB-Tool: Connect the sensor to the HB-Tool via USB. Open the basic settings tab in the software. Click the zero-calibration button. Enter the zero calibration value into the “SPAN calibration in pF” field. Click “Send Zero/Span values” to complete. Calibration for Heat Pump Version: For heat pump versions with a thin measuring wire, install the sensor on a dry, ice-free evaporator. Connect to the HB-Tool via USB and follow the software calibration steps. LED Indication: Green LED indicates power and external start signal status. Red LED indicates defrost mode or sensor error. Fault Detection: Use LED signals to identify faults and follow troubleshooting steps. Common issues include improper grounding, wire shorts, or defective cables. Following these steps ensures your HB Products Mk2 Defrost Sensor delivers accurate measurements for optimal performance.