palintest Macro 900 Operation Manual

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palintest Macro 900 Operation Manual Manual pdf 91 page image

Macro 900 Operation Manual V3© 2013 Palintest Ltd. www.palintest.com Page 91 of 147place. During calibration, the Calibrating screen is displayed and theprogress counter counts up. If the calibration is successful, thecounter will reach 100% and the following screen will be displayed.Offset:2500mVCalibrating100%Press [OK]The Calibration Report on the top line displays the voltage output from theprobe in millivolts (mV). This value is not stored in memory so should be noteddown in a calibration record book for the probe.15.7.8. Calibrating Point 2Remove the Probe from the calibration bottle, shake off any excess water thendry the outer sleeve with a soft cloth.Fill a calibration bottle with freshly mixed 1-5, naphthalenedisulfonic aciddisodium salt calibration solution and drop the Probe in all the way. Again, bangthe Probe against the bottom of the bottle several times in order to remove anyair bubbles that may be clinging to the probe.Follow the procedure detailed above for Zero point calibration as far as step 6,then select Pt-2. Wait while the Meter stabilises and calibrates.After successful calibration, the ‘Calibrating 100%’ screen will be displayedalong with the Calibration Report, which will show the voltage output from theprobe in millivolts (mV). Press the OK key to continue.Calibration is now complete.15.7.9. Errors During CalibrationIf a problem occurs during calibration, an error message will be displayed.Refer to Error! Reference source not found. in section 10 for error messagehandling.15.7.10. Lens and Sleeve MaintenanceOn a daily basis, the lenses on the probe should be wiped over with a soft dampcloth.Similarly, the inside of the Probe Sleeve and Sleeve Cap should be kept cleanand free from any deposits that may cause stray fluorescence.Never use an abrasive cleaner on the inside of the Probe sleeve or capas they have been treated with a non-reflective coating which can beeasily damaged. The inside of the sleeve should be wiped over with a softdamp cloth and non-abrasive detergent.Always re-calibrate the zero point after cleaning the sleeve or lenses.