Hanna Instruments lp_2000 手册
7
POWER CONNECTION
Plug the 12VDC adapter (HI 710005 - 110VDC, or HI 710006 -
220VDC) into the DC socket (see page 5).
Plug the adapter into the outlet.
220VDC) into the DC socket (see page 5).
Plug the adapter into the outlet.
Note: Insure the main line is surge protected.
Note: Always turn the meter off before unplugging it to insure no
data is lost.
MEASUREMENT PROCEDURE
• Turn the meter on by pressing ON/OFF.
• The meter will first perform an LCD self
diagnostic test by displaying a full set of
figures. It will then switch to the measure-
ment mode.
figures. It will then switch to the measure-
ment mode.
• When the LCD displays “----”, the meter is
ready.
• Fill a clean cuvette up to one quarter inch
(0.5 cm) from its rim with the thoroughly
agitated sample.
agitated sample.
• Allow sufficient time for bubbles to escape
before securing the cap.
Note: Do not overtighten the cap.
• Wipe the cuvette thoroughly with
• Wipe the cuvette thoroughly with
a lint-free tissue (HI 93703-70)
before inserting the cuvette into
the measurement cell. The cuvette
must be completely free of finger
marks, oil or dirt, especially in the
area where the light passes
through, i.e. approximately the
bottom 2 cm (3/4” inch) of the
cuvette.
before inserting the cuvette into
the measurement cell. The cuvette
must be completely free of finger
marks, oil or dirt, especially in the
area where the light passes
through, i.e. approximately the
bottom 2 cm (3/4” inch) of the
cuvette.
• Place the cuvette into the holder
and check that the notch on the
cap is positioned securely into the
groove.
cap is positioned securely into the
groove.
OPERATIONAL GUIDE