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Rosemount 1056-03-22-38-HT transmitters with 3900-01-12 probes.
Calibrated with 400mv solution that was in agreement with my ultra meter 2 hand held +- 10 mv. Place back in service has large error 200-500 mv. Replaced one probe and came in very close to 400mv immediately after sensor reset of 1056, but still way off once back in service. Process is reading 200mv to 500 mv among my three issue transmitters. Help or source for further info would be greatly appreciated.
Calibrated with 400mv solution that was in agreement with my ultra meter 2 hand held +- 10 mv. Place back in service has large error 200-500 mv. Replaced one probe and came in very close to 400mv immediately after sensor reset of 1056, but still way off once back in service. Process is reading 200mv to 500 mv among my three issue transmitters. Help or source for further info would be greatly appreciated.
