Hanna Instruments HI 96765 - Manual (Page 11)

11
To compensate the meter for the sample turbidity or color, the measurement takes place in two
phases. First, the meter is calibrated. After the sample is prepared, the sample is measured.
• When the beeper sounds briefly and the
LCD displays dashes, the meter is ready.
The blinking “CAL” indicates that the
instrument needs to be calibrated first.
• Fill a standard 10 mm tube with
1.5 ml of the blood sample.
• Use a centrifuge to separate the blood
cells from the plasma and to obtain a
clear supernatant of plasma, without any
turbidity or suspended blood cells.
• Please verify that the height of the
deposits does not exceed 12 mm (from
the bottom of the tube), and that the
tube is filled with plasma, up to, at
least, 19 mm.
MEASUREMENT PROCEDURE
• Turn the meter on by pressing ON/OFF.
The display briefly shows all tags on.