11
5. Using a plastic pipette, rinse prism and sample well with distilled or deionized water.
Wipe dry. The instrument is ready for the next sample.
Press the
RANGE
key to select measurement units. The instrument toggles between
the three measurement scales each time the key is pressed and the primary display
indicates “
PSU
”, “
PPt
” and “
S.G.
”. When the instrument displays the screen with 4
dashes, the instrument is ready for measurement. A number on the display indicates the
selected unit: “
1
” denotes PSU, “
2
” denotes ppt and “
3
” denotes Specific Gravity.
CHANGING MEASUREMENT UNIT