Thanks to the integrated maintenance computer, upkeep of the gas converter is predictable. By entering user-specific data, the NOx-calculator computes the remaining operating time of the conversion tube based on a stored standard curve, and flags maintenance requirements upon user request. Maintenance computer “NOxCal” (19″ rack-mount) for scheduled maintenance prediction. The built-in NOxCal control unit calculates the remaining service life of the converter cartridge based on your input and a predefined curve, then alerts you when it’s time for maintenance. With its energy-efficient design, >97% conversion rate, optional long‑life cartridges, and tool-free replacement in a rugged 19″ rack housing, BÜNOx 2+ delivers reliable performance and low operational costs.