Smart Measure detects:
- Dirty prisms
- Incorrect calibration
- Insufficient sample load
- Cross contamination
- Improper water zero
- Trapped air bubbles on prism surface
Cross contamination caused by the previous sample being inadvertently mixed with the current sample being measured often leads to inaccurate subsequent measurements. Ensuring that the prism surface is properly cleaned between measurements can be difficult for busy environments where multiple operators are involved. Smart Measure detects when the refractometer’s prism is clean and ready to measure or notifies the operator if cleaning of the prism is necessary.
Insufficient Amount of Sample Covering the Prism Surface
A small drop of sample on the perimeter of the prism will produce erroneous RI and BRIX readings with the reason often unknown to the operator. Smart Measure detects when a sample has been loaded on the refractometer‘s prism and immediately begins evaluating various metrics surrounding the sample load. If it determines that those metrics indicate an improper sample load, Smart Measure request cleaning of the prism and re-loading of the sample.
Sample Contamination or Improper Calibration
If sample residue is left in the measurement well it can mix with a water zero or calibration fluid. This type of contamination during the calibration process will cause an error across subsequent measurements yielding incorrect RI and BRIX readings. Smart Measure constantly measures the prism surface and monitors the value measured against a database of results. If during a water zero calibration the instrument detects a value that is too different from the database or the RI value being input is far from the measured value it will alert the operator.
Sample has Air Bubbles that Affect Measurement Results
Carbonated samples or those containing trapped air read well unless air bubbles are trapped between the refractometer’s prism surface and the sample. When this happens the measured value is quite different from the expected measurement value. Smart Measure detects these anomalies by scanning the detector for varying RI values and alerting the operator to reload the sample. Smart Measure prevents another measurement being recorded until a new sample is loaded.
Electronic Dual Temperature Control System
All J457 models come with Rudolph’s exclusive dual temperature control system utilizing Peltier technology. The J457 refractometer heats and cools the sample from both prism surface and sample cover. The insulating cover housing seals the Prism Well Ring to create a uniform temperature environment providing unmatched temperature control uniformity resulting in consistently accurate RI measurement.
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