Xylem E-Line 80 Refractometer - Manual (Page 3)

Product Description
The E-Line 80 is a dual scale Brix refractometer ideal for use in the food industry and other
applications requiring concentration measurements over a wide measurement range.
Applying the sample to the refractometer:
Lift the illuminating prism
1 and apply the sample to the measurement prism 2 . Close the prism and
view the borderline (light/dark demarcation line) through the eyepiece 3 .
Eyepiece 3 Scale Selection Cotrol 4
Zero Calibration
Screw
5
Measurement
Prism
2
Illuminating
Prism
1
Optical glass is relatively soft and care should be taken not to scratch the prism surface.
Do not use metal spatulas or glass rods to apply samples but instead use softer materials
such as plastic.
Always check sample Health & Safety Data before applying to the refractometer.
When applying samples to the prism which are likely to cause harm to skin or eyes, wear
appropriate protective clothing and glasses.
Taking a reading:
Depending on the concentration of the sample, select the range of measurement
(Table 1) by adjusting
the scale selection control 4 . If the concentration is unknown, apply the sample and step through the
ranges until a clear borderline is found.
The concentration of the sample can be measured at the point the borderline crosses the scale.
Take care to ensure that the reading is taken from the correct scale range.
Refractive Index values can be obtained by using a conversion table available from Bellingham +
Stanley Ltd, see Table 3.
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