The differential pressure transmitter DMD is based on microprocessor technology and it has a logical menu system. Settings of working range, damping, and zero-point adjustment are made using buttons under the lid.
Measuring technique
Pressure measurments are obtained by means of a sensor that uses a ceramic measuring beam. The differential pressure affects a membrane that works directly against the measuring beam. The thick-film resistor is mounted on the bending area of the measuring beam. When the measuring beam bends the resistance value changes and will then be converted to a proportional output signal via built-in electronics. The small number of moving parts in the transmitter, permits a high degree of accuracy and short response time. Another important quality is that the ceramic element has a very good long-time stability.
