Extech Oyster 341350 pH/Conductivity/TDS/Salinity/ORP Meter
I just received a brand new Extech Oyster 341350A pH/Coductivity/TDS/Salinity/ORP Meter with a new electrode. I can not calibrate pH 7.0 in pH 7.0 buffer solution with a % calibration reading, it only indicates SA and END. However pH 10.0 and pH 4.0 buffer solutions showed % calibration readings. Please trouble shoot what's wrong, otherwise I have to return the meter because it does not serve daily recording needs. Best regards, Jane Wallner Environmental Manager LMDD Enterprises, Inc. dba Dixon Hard Chrome 11645 Pendleton Street Sun Valley, CA 91352 Phone: (818) 767-**** Fax: (818) 504-**** Email: jane@***.com
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Damaged or defective
Fix the problem stated
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