Nivus CSM Series Technical Instructions
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Technical Instructions forCorrelation Sensors®Correlation Sensors – Rev. 07 as of 20.04.2016 Page 597 Maintenance and CleaningWARNING Germ contaminationDue to using the sensors mostly in the waste water field which may be con-taminated with hazardous germs, please ensure to take respective precau-tions getting in contact with system, transmitter, cables and sensors.In heavily polluted media tending to sedimentation it may be necessary to cleanthe flow velocity sensor regularly. To do so, please use a brush with plastic bris-tles, a broom or similar.Polluted plugs (sensor connection F or S) and sockets must be cleaned anddried before reconnect a sensor. Remove touch dry dirt with compressed air orby using a brush with plastic bristles (no metal!). If required, maintain the con-tacts by using a contact spray.WARNING Damage by hard objectsNo hard objects such as wire brushes, rods, scrapers or similar shall be usedto clean the sensor. Cleaning by using a water jet is allowed up to a max. pres-sure of 4 bar (see Specifications) (e.g. using a water hose). Never clean flowvelocity sensors with pressure measurement cell (types V2D and V2U) by us-ing a water jet!Using a high pressure cleaner may damage the sensor resulting in measure-ment failure and is therefore absolutely not allowed.7.1 Water-US Combi Sensor with Pressure MeasurementWARNING Do not remove partsRemoving or loosening of the ground plate or cable gland results in leakageand therefore will cause measurement and sensor failure.Only the cover of the pressure measurement is allowed to be removed. Doabsolutely not remove other parts of the sensor!!WARNING Damage of pressure measurement cell during cleaningNever clean the pressure cell using a water jet, screw driver or similar!It is not permitted to touch the probe with the fingers or other objects(see Fig. 7-1)This will irreversibly damage the pressure cell!It is allowed to clean the pressure measurement by using slight flushingmovements in a vessel filled with water.Bei Verletzung dieses Verbotes erlischt die Gewährleistung seitens des Her-stellers! If in doubt please let NIVUS do the cleaning |
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