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Calibration / Maintenance Log <br /> Param@terS pH, EC,Temp <br /> Instrument Oakton 10 meterr Instrument ID Oaktoni Probe ID <br /> pH - EC <br /> Temp.°C Buffer Code <br /> automatic temp.compensation 4.0 calibrated EC Calib Stndrd —99&-{C-o Vic. <br /> 7.0 8 Code R-)- /23 <br /> 10.0 meter reading 00e <br /> Calibration Verification Reading <br /> Mai nance (must be 6.90-7.10) <br /> cleaned probe <br /> ❑ changed batteries <br /> ❑ changed probe <br /> Date <br /> ❑ CL—zG 1 Zr <br /> Technician A4.jL C� � <br /> Job Site i a 4 -'rz! h <br /> pH EC <br /> Temp.°C Buffer Code 4&Oe) <br /> automatic temp.compensation 4.0 ��/calibrated EC Calib Stndrd -9W '�- <br /> 7.0 Code tZ — Z <br /> 10.0 <br /> meter reading � <br /> Calibration Verification Reading <br /> Main nae (must be 6.90-7.10) <br /> • cleaned probe <br /> ❑ changed batteries <br /> ❑ changed probe <br /> ❑ Date '�L7— /Z <br /> Technician &`f_ <br /> Job Site CobLh T-e -A o <br /> 113 <br /> pH EC <br /> Temp.°C Buffer Code /0 <br /> o-e <br /> U <br /> automatic temp.compensation 4.0 qL calibrated EC Calib Stndrd '998^ ktc- <br /> 7.0 22©/ Code n-'y— I <br /> 10.0 j � <br /> meter reading <br /> Calibration Verification Reading ,OZ— <br /> Main nonce (must be 6.90-7.10) <br /> leaned probe <br /> ❑ changed batteries <br /> ❑ changed probe <br /> ❑ Date 12 <br /> Technician <br /> Job Site - '�e c <br />