The DDM-EM DE90 sets new standards in differential pressure measurement.

Equipped with a piezoresistive* sensing element, the device is suitable for volumetric flow measurement in a wide range of applications.

Key features:

Installation: between flanges, internal and external threads, or pipe fittings
Versatile: one device for all installation situations and flow directions
Measurement: low differential pressures with minimal pressure loss
Flexible: suitable for liquids and gases
Robust: no moving parts, maintenance-free, and suitable for use in ATEX zones 2 and 22
Precision: measuring ranges from 0.75 m³/h to 4000 m³/h with an accuracy of 5% FS
Multifunction LC display: color-changing indication for operating states, fully graphical with multilingual plain-text menu

Options and configurations:

The DE90 stands out due to its flexibility:

- Analog output (0/4 … 20 mA, 0/2 … 10 V or 1 … 5 V)
- Configurable switching outputs

Typical applications:

- Various gases (e.g. air, nitrogen, natural gas)
- Monitoring of low-pressure volume flows

With the DDM-EM DE90, you receive a reliable, robust, and adaptable differential pressure flow measurement device that meets the highest requirements. Perfect for modern applications in industry, building services engineering, and ventilation technology.

The piezoresistive effect describes the change in electrical resistance of a material caused by pressure or mechanical strain.