Fixed pressure sensors Fixed sensors are used for engine performance measurement and PMI automatic calibration, with initial calibration completed during system debugging. During use, calibration of the fixed sensor must be performed on the engine using a calibration sensor and calibration box. MAN M&W stipulates that the frequency of recalibration must not be less than once every 12 months, and it is recommended to check and calibrate every 6 months.
Note: Before connecting the calibration sensor, no blowing operation should be performed. The high temperatures generated during the blowing process may damage the fixed sensor, which has been clearly confirmed.
PMI Offline Pressure Sensors PMI offline sensors are used for engine performance measurement. Recalibration must be performed at least once every 12 months, and it must be done at an accredited calibration center, following the manufacturer’s technical specifications. When calibrating this sensor, it should be calibrated together with the PMI calibration box and connection cables. Calibration Sensor and Calibration Box The calibration sensor is a certified and traceable calibrated sensor, accompanied by a calibration certificate. The recalibration frequency for the calibration sensor and calibration box must not be less than once every 5 years, and it must be performed at an accredited calibration center, following the manufacturer’s technical specifications. This calibration sensor is specifically designed for the calibration of fixed pressure sensors. If used for any other purpose (such as frequent manual engine performance measurements), the calibration certificate will become invalid after 12 months of use.
