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n <br /> d- <br /> • <br /> N <br /> �- battery compartment <br /> I <br /> Cr) <br /> to / <br /> O <br /> 3 zero --f 6� �. air <br /> oz calibration t calibration <br /> control ^" "' control <br /> .f C. ,P <br /> O <br /> mode switch <br /> Operating COntrals Description <br /> MWO Switch-A five-posmon swrtgh used to select the <br /> operation mode.The positions are: <br /> OFF- Used when the electrode is not operating. <br /> In the OFF position the electronic amplifiers are not <br /> operating, but the electrode polarizing vottage is <br /> maintained so that stable readings will be obtained <br /> f-- electrode the moment the electrode is switched to me standar- <br /> dization and operating modes. <br /> BT CK- Battery check.Good battery operation is <br /> indicated by a reading of 13.4 or greater on the pH <br /> sample solution stale of the meter. <br /> displaced by ZERO -Used to electronically zero the electrode. <br /> electrode This mooe simplifies the standardization of the elec. <br /> funnel with trode by electronicatty,simulating the output of the <br /> built-in electrode in the presence of a zero oxygen level. <br /> stirring bar AIR - Used to standardize the elearode on air. <br /> H2O - Used for sample analysis. <br /> �— 800bottle ZOMCallbratfon Control-Knob is used to obtain azero <br /> reading on the pH scale of the meter. <br /> �----- captive AlrCallbration Control-Knob is used to set barometnc <br /> magnetic pressure of air on the pH scale of the meter. <br /> stirring <br /> - bar <br /> magnetic stirrer <br /> ORION DISSOLVED OXYGEN <br /> ELECTRODE (MODEL 97-08) <br />- TEST SETUP <br /> CO2124 <br />_ © �.2_q ax,� OEM i>'iry/ <br /> No. DATE ISSUE REVISION DWK IPCWD 9YAP.p BY DATE: 3-12-92 DRAWING NUMBER <br /> IGURE D-2 89-121-A447 <br /> Al <br />