For hygienic applications Bau-mer offers the electrical pressure transmitter ED701. The piezo-resistive measuring device with its stainless-steel diaphragm is based on a silicon sensor designed for high precision over a wide temperature range. This ensures that the pressure transmitter offers very high accuracy (up to 0.1 % F. S.) and excellent long-term stability (0.1 % per year). If required the zero point can be recalibrated using a simple mechanical adjustment. The measuring range can also be programmed, which allows adaptation to the customer-specific application.
With a large range of process connections and several output signal options, the ED701 is suitable for a great variety of applications. In order to reduce the surface roughness, the process connections can be electro-polished. For use with aggressive media, the ED701 can be provided with a pressure connection in Hastelloy C. For applications with oxygen, the device is available with a process connection cleaned of oil and grease. The standard oil filling is FDA-approved white oil suitable for temperatures from -10 up to 125 °C. Other available options include halocarbon oil and silicon oil, which are suitable for applications with temperatures of up to 300 °C.
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