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| Please see first the section 'Cleaning of the Electrical Connection' in the POS Service manual [http://www.oroboros.at/index.php?id=o2k-pos-service [MiPNet08.04]].
| | #REDIRECT [[OroboPOS-Connector]] |
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| The two electronic connections of the POS connector (to the [[POS]] and to the [[Main unit]]) make a POS connector that has been disconnected from the [[POS]] or from the [[Main unit]] or from both particular sensitive to damage by [[ESD]]. '''Therefore it is of special importance to follow the guidelines for ESD protection [http://www.oroboros.at/index.php?id=esd-protection [MiPNet14.1]] whenever handling a POS connector.'''
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| ==Cleaning of the Electrical Connection ==
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| Unscrew the [[POS]] and check both sides of the electrical connection (the gold pin and thread both on the POS and on the [[POS connector (technical service)|POS connector)]]. Remove any contamination such as grease and moister with a fine paper cloth. Soak a paper cloth in ethanol and clean the gold pin and threads. If the gold pin and thread on the POS connector are discolored or stained repeated cleaning with a paper towel soaked in ethanol may be required: Continue cleaning until a fresh paper towel stays clean!
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| Finally apply a drop of [[contact oil]] from your accessories box to each of the golden pins and threads on POS connector and POS.
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| If you have also done a [[Sensor service]] or changed the POS membranes allow the oxygraph to run over night before repeating the Sensor test. If all service precautions fail to solve the problem, or a new POS connector has to be applied.
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| ==Cleaning the Spring Mechanism==
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| From the outside media or other spills may get into the mechanical part of the POS connector making the spring mechanism hard to work. Therefore the outside of the POS connector should be cleaned with pure water from time to time.
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| Apply a POS to the POS connector and make sure its seal (to the connector) is tight. Leave the POS connector attached to the oxygraph main unit or make otherwise sure that the plug connecting the POS connector to the main unit does not get wet (parafilm, 'hiding' the cable in your sleeves,...)
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| This will ensure that only the outside of the POS connector is touched by water. Then rinse the blue plastic of the connector with pure water, working the spring loaded handle (like when inserting the connector into the chamber) several times. This will dissolve any media stuck in the mechanical part of the POS connector.
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| {{#set: Technical service=POS connector|Technical service=O2 signal|Technical service=Sensor service| Technical service=O2 flux}}
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| {{Technical service}}
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| __SHOWFACTBOX__
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