Datasheet ESRF-ESF

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13. Instructions of Use

The ESRF-ESF sensors are calibrated in a horizontal position. As depicted in the following

graph.

Calibration orientation

For optimal performance, the sensor requires at least 20x ID of laminarizing pipe length in the

flow inlet and another 20x ID in the outlet. ESRF-ESF sensors are calibrated using 20mm ID

pipe diameter. The diameter of the inlet and outlet flow pipes should be as close to the

calibration diameter as possible. It is also possible to insert O-rings in the grooves and attach

tubes with an inner diameter of 23 mm to the ESRF-ESF. The dimensions of the O-ring are

illustrated bellow.

Temperature compensation

The ESRF-ESF sensor features digital temperature compensation. The temperature is

measured on the MEMS element by an on-chip temperature sensor. This data is fed to a

compensation circuit that is also integrated on the microprocessor. Thus, no external

temperature compensation is necessary.

Sensor Handling

The ESRF-ESF sensor is designed to be robust and shock resistant. Nevertheless, the accuracy

of the high-precision ESRF-ESF can be degraded by rough handling. ES Systems does not

guarantee proper operation in case of improper handling.