Anton Paar SmartRef - Measurement Validation and Battery Exchange; Water Check Procedure; Zero Adjustment Process; Battery Replacement Guidance

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CHECK MEASUREMENT
Fill the sample well with ultra-pure water up to the sample height indication and perform a measurement via the app.
Depending on the selected unit of measurement, the result should be e.g. 0.0 °Brix, 0 ppt, etc. within the respective accuracy.
A water check should be performed before starting measurements. Perform additional water checks on demand, depending
on your judgement, e.g. when you get a series of unexpected results. If the check fails, take corrective actions until the check
is valid again:
 Check the reference liquid (ultra-pure water) quality
 Clean the measuring prism thoroughly. Alcohol or a solvent suitable for the samples measured before could be useful.
 If above actions do not help to perform a valid check, perform a zero adjustment.
TIP
For best measurement performance use a new and clean pipette for every measurement.
ZERO ADJUSTMENT
Before measuring, performing a zero adjustment using ultrapure water is recommended.
 Properly clean and dry the prism surface and the sample well.
 Apply ultrapure water on the measuring surface until the sample well is lled up to the marked height.
 If the sample temperature differs strongly from the device temperature allow the sample to equilibrate for approximately 1
minute.
 Perform zero adjustment via the app.
 The app will indicate if the zero adjustment process was successful or provide further information otherwise.
TIP
Perform the zero adjustment under the same conditions as the sample measurement. Changes in ambient conditions
between the zero adjustment and the sample measurement could lead to deviations in the measurement result.
If the zero adjustment is performed under strong light (e.g. sunlight) ensure a proper shading of the sample well during the
adjustment process.
EXCHANGING THE BATTERIES
For proper battery handling, observe the safety instructions. The battery status of the device is indicated in the app. When
the batteries are depleted, the device switches off by itself. If the app indicates a low battery or the device does not switch on
it is advised to replace the batteries. Use only batteries type AAA LR03 (alkaline) or rechargeable batteries type AAA HR03
(NiMH).