
The Rotronic HF5A High End HVAC Humidity and Temperature Transmitter, known for its stability, generally maintains its factory calibration effectively. The instruction manual suggests the probe and electronics are designed for long-term stability. The Rotronic Hygromer humidity probes typically exhibit a drift of less than 1%rh annually. For optimal accuracy, calibration is generally recommended every 6 to 12 months. However, environments with potential contaminants may necessitate more frequent calibration. Calibration can be performed either on-site by the user or in a professional laboratory setting. For routine checks, one or two-point calibrations are often sufficient. Detailed calibration procedures are available in the HF5A transmitter's instruction manual.


