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| {{Technical support}}
| | #REDIRECT [[O2k-Open Support]] |
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| __TOC__
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| == Switch components ==
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| {| cellspacing="1" cellpadding="1" border="1" align="center" width="513" style=""
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| |+ '''Summary'''
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| |-
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| ! scope="col" | Problem moves with
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| ! scope="col" | Problem situated at
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| |-
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| | [[POS]]
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| | [[POS]]
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| |-
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| | [[POS connector]]
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| | [[POS connector]]
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| |-
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| | not at all
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| | [[Chamber assembly]] or [[Main unit]]
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| |}
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| <br>
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| == Remove components ==
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| {| cellspacing="1" cellpadding="1" border="1" style="width: 745px; height: 114px;"
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| |+ '''Tested states and expected behavior'''
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| |-
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| | '''State'''
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| | '''Description'''
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| | '''Expected behavior'''
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| |-
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| | '''I'''
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| | fully assembled, sensor in chamber, air saturation, Gain =2
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| | stable signal, 3 to 5 V
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| |-
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| | '''II'''
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| | POS connector + sensor removed from chamber, sensor still connected to sensor connector
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| | initial change in voltage, new, stable non-zero level of signal reached
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| |-
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| | '''III'''
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| | sensor removed from POS connector
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| | stable signal at 0 V
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| |-
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| | '''IV'''
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| | POS connector removed from main unit
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| | for oxygraphs series A to C: typically signal off scale (+/- 9.99 V), for oxygraphs series D and higher: typically 0 V; may vary, a gain independent stable signal of 0.4 V is a strong indication of an electronic problem in the main unit
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| |}
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| <br>
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| {| cellspacing="1" cellpadding="1" border="1" style="width: 749px; height: 201px;"
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| |-
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| ! scope="col" colspan="4" | State<br>expected behavior observed? yes/no <br>
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| ! scope="col" rowspan="2" | Interpretation / Comment <br> <br>
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| |-
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| ! scope="col" | I
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| ! scope="col" | II
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| ! scope="col" | III
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| ! scope="col" | IV
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| |-
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| | no
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| | yes
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| | yes
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| | yes
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| | may indicate a problem in the [[Chamber assembly]], or a defective sensor, continue testing
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| |-
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| | no
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| | no/yes
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| | yes
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| | yes
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| | probable defect in the [[Sensor]]. This indication is not so strong as a localization obtained via switching components. The [[POS connector]] (not the [[Sensor]]) may be defect, but this may be only visible when a signal is present.
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| |-
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| | no
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| | no
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| | no
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| | yes
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| | indicates a defect in the [[POS connector]]
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| |-
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| | no
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| | no
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| | no
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| | no
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| | indicates a problem with [[Chamber assembly]] or a defect in the [[Main unit]]; if the problem can not be solved by reassembling the chamber, contact OROBOROS Instruments.
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| |}
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| <br>
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| {{#set:Technical service=O2 sensor|Technical service=POS connector| Technical service=Main unit}}
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