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Thermo Fisher Scientific

Inaccurate Level Monitor Readings

This document addresses common issues with inaccurate level monitor readings in cryogenic storage vessels, particularly due to ice or frost buildup on the transducer and fog in the neck area. It details solutions such as allowing the transducer to thaw naturally and waiting for fog to dissipate before taking accurate readings. The guide emphasizes careful handling to avoid damage and ensure accurate monitoring of liquid nitrogen levels in cryogenic vessels.

Issue

Common Problems with Inaccurate Level Monitor Readings. This document provides a description of how ice or frost buildup on the transducer or fog in the top part (neck area) of cryogenic vessel contributes to inaccurate level monitor readings.

Environment

Locators and Locator Plus Cryogenic Storage Vessels with Ultrasonic Level Monitor

Resolution

Refer to the attached document for instructions.

 

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