Hi everyone! I have a problem with Yokogawa AXFA14C. We have unstable zero. We completely filled the pipe and did zero executing. But it didn’t help. It’s electromagnetic type. Reading not correct. We think maybe inside the pipe magnets is dirty. But Adhessive is 0 M ohm. Our Flow Span 0-500 m3/h. Nominal Size the tube is 200mm. Motor is working about 183.6 m3/h (50 HZ), but our readings is 9.8 m3/h maximum. We checked all parameters. And we can’t do correct zero. Maybe the pipe is dirty?