Lead time: FC
According to ASTM D5800, it is recommended to check the vacuum flow with the manometer assembly once per month or if the daily reference oil value begins to drift.
The built-in air velocity and flow calculations provide accuracy and conserve time and error associated with manual calculations. Also featured on this unit are adjustable zero and span values for calibrating in the field, as well as a damping feature to compensate for the fluctuating of readings.
