pH 7110 - Fagerberg

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What to do if... pH 711010 What to do if...10.1 pHMore information and instructions on cleaning and exchange ofsensors are given in the documentation of your sensor.10.1.1 No stable measured valueCause• Junction of the electrode contaminated• Glass membrane of the electrodecontaminatedRemedy• Clean the junction• Clean the glass membraneCause• pH value of the test sample notstable• Temperature of the test samplenot stableRemedy• Measure with air excluded ifnecessary• Adjust temperature if necessary10.1.2 Error message CalErrorCause• The values determined for zeropoint and slope of the electrodeare outside the allowed limits.• RecalibrateRemedy• Junction contaminated • Clean the junction• pH electrode broken • Replace the pH electrode38 ba75925e01 07/2011
pH 7110What to do if...Cause• The used buffer solutions do notagree with the set buffer setRemedy• Set different buffer setor• Use different buffer solutions• Buffer solutions too old • Use only once.Note the shelf life• Buffer solutions depleted • Change solutions10.1.3 Error message OFL, UFLThe measured value is outside the measuring range.The measured value is obviously incorrect.CauseRemedy• Cable broken • Replace the electrode• Gel electrolyte dried out • Replace the electrode• Air bubble in front of the junction • Remove the air bubble• Air in the junction • Extract air or moisten the junction10.2 ORPMore information and instructions on cleaning and exchange ofsensors are given in the documentation of your sensor.10.2.1 No stable measured valueCauseRemedy• Junction contaminated • Clean the junction• Pt-ORP electrode contaminated • Clean the Pt-ORP electrodeba75925e01 07/2011 39
Page 2 and 3: pH 7110Copyright© Weilheim 2011, W
Page 6 and 7: Contents pH 711011.1.3 Accuracy (±
Page 8 and 9: Safety pH 71102 Safety2.1 Safety in
Page 10 and 11: Commissioning pH 71103 Commissionin
Page 12 and 13: Commissioning pH 71103.3.3 Mounting
Page 14 and 15: Operation pH 71104.1.2 Display321Up
Page 16 and 17: Operation pH 7110When the meter is
Page 19 and 20: pH 7110pH valueStability criteria (
Page 21 and 22: pH 7110pH value8. Wait for the meas
Page 23 and 24: pH 7110pH value3. If necessary, pre
Page 25 and 26: pH 7110pH value0 2mVA S yConCalWhil
Page 27 and 28: pH 7110ORP6 ORP6.1 Measuring6.1.1 M
Page 29 and 30: pH 7110Settings7 SettingsThe meter
Page 31 and 32: pH 7110Settings7.1.3 Calibration in
Page 33 and 34: pH 7110SettingsThe switch-off inter
Page 35 and 36: pH 7110ResetThe following settings
Page 37: pH 7110Maintenance, cleaning, dispo
Page 41 and 42: pH 7110What to do if...10.3.3 Instr
Page 43 and 44: pH 7110Technical data11.1.3 Accurac
Page 45 and 46: pH 7110Technical dataFCC Class A Eq
Page 47 and 48: pH 7110Glossary12.2 General informa
Page 49 and 50: pH 7110Index13 IndexAAR . . . . . .
Page 52: Wissenschaftlich-Technische Werkst

pH 7110 - Fagerberg

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