CRA-300

The CRA-300 transmitter is applicable to the measurement of differential pressure of gases, vapours and liquids. The active element is a piezoresistant silicon sensor separated from the medium by separating diaphragm and a specially selected type of manometric fluid. The special desing of the active sensing element ensures withstanding the pressure surges and overloads of up to 40 bar.

The electronics is placed in a casing with a degree of protection IP65, IP67, depending on the type of electrical connection applied. Potentiometers can be used to shift the zero position and the range by up to 10%, without altering the settings. The transmitter is not heavy, so it can be installed directly onto impulse lines. For fitting in any desired position on a Ø25 pipe the mounting bracket is recommended.

The version with C type process connection can be fitted directly to a 3- or 5-valve manifold. The factory-mounted transmitters with VM type valve manifold are recommended. A transmitter without a valve manifold can be fitted in any position on a 2" pipe or on a wall using the C-2" mounting bracket. When the special process connections are required for the measurement of levels and pressures (e.g. at food and chemical industries), the transmitter is provided with a diaphragm seal.