The diluters of the DLD series perform the dilution of calibration gas in order to verify calibration lines of fixed or portable instrumentation. Versions with 2 and 3 inputs are available, with differentiated ranges. The measurement of gas flows takes place via mass flow whose data are shown on the display. Once the cylinder concentrations have been indicated, the DLDs calculate and provide the dilution percentage of the reference. It is also possible to act directly on the individual mass flows. Each mass flow can be calibrated according to its own metrological chain.

The DLDs can also be used in the field thanks to the sturdy shockproof case in which they are housed.