ABB 9438 User Manual
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Contents
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124 SETTING UP123457Optional enclosure not shown for claritySlip the connector nut overthe connector body and screwon to the oxygen sensor firmly.Insert the complete assembly intothe flowcell ensuring that the O-ring is in place.Remove the top from the oxygen sensorcontainer.Unscrew the protective cap from the rear of theoxygen sensorUse the clamping screw to secure theassembly. Screw in firmly using fingerpressure only.Slide the thrust washer overthe connector body.Place an O-ring (provided) as shown andlocate the connector bodyon the oxygen sensor.FlowcellO-ringOxygenSensorConnectorBodyO-ringClampingScrewThrustWasherConnectorNut64.1 Fitting the Dissolved Oxygen Sensor – Fig. 4.1Caution.• Only install the oxygen sensor immediately prior to use, otherwise leave itstored in its protective container. The sensor has a limited shelf life and shouldNOT be stored longer than about 6 months. Store under cool conditions.• Take special care to line up the two pins in the oxygen sensor with theirrespective sockets before making the connection and tightening.• Take care not to damage the delicate membrane on the end of the oxygensensor.• Ensure that the mating surfaces (carrying the electrical connection) of theoxygen sensor and connector body are clean and completely dry.Caution. Do not overtighten the clamping screw.Fig. 4.1 Fitting the Dissolved Oxygen Sensor |
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