HACH LANGE 2100N User Manual
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Contents
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Measure the Gelex stray light standardMeasure the Gelex stray light standard when the instrument is first received. Record the value on the Gelex vial with a permanent marker one time.1. Clean the stray lightstandard with a soft,lint-free cloth to removewater spots andfingerprints.2. Apply a small beadof silicone oil from thetop to the bottom of thevial.3. Use the oiling clothto apply the oil equallyto the surface of thevial. Remove theexcess oil. Make surethat the vial is almostdry.4. Push RANGE toselect automaticranging.The Auto Range lightturns on.5. Push SIGNAL AVGto turn signal averagingoff.The SIGNAL AVG lightturns off.6. Push UNITS/Exit toselect the NTUmeasurement mode.The NTU light turns on.7. Push RATIO to turnRatio mode on.8. Put the stray lightstandard in the samplecell holder with thetriangle on the vialaligned with thereference mark on thesample cell holder.Close the cover.9. Read the valuewhen stable. Removethe vial from theinstrument.10. Record the valueon the white diamondspace on the vial usinga permanent marker.14 English |
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