MEASUREMENT GUIDELINES
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5. MEASUREMENT GUIDELINES
y
Handle instrument carefully. Do not drop.
y
Do not immerse instrument under water.
y
Do not spray water to any part of instrument except the
“sample well” located over the prism.
y
The instrument is intended to measure sodium chloride
solutions. Do not expose instrument or prism to solvents
that will damage it. This includes most organic solvents and
extremely hot or cold solutions.
y
Particulate matter in a sample may scratch the prism. Absorb
sample with a soft tissue and rinse sample well with deionized
or distilled water between samples.
y
Use plastic pipettes to transfer all solutions. Do not use
metallic tools such as needles, spoons or tweezers as these
will scratch the prism.
y
Cover sample well with hand if measuring in direct sun.
