Calibration procedure – Hanna Instruments HI 96728 User Manual

Page 17

CALIBRATION PROCEDURE

Note:

It is possible to interrupt calibration procedure at any time by pressing CAL CHECK or

ON/OFF

keys.

Warning

: Do not calibrate the instrument with standard solutions other than the HANNA CAL

CHECK

Standards, otherwise erroneous results will be obtained.

• Turn the meter on by pressing ON/OFF.

• When the beeper sounds briefly and the

LCD displays dashes, the meter is ready.

• Press and hold CAL CHECK

for three

seconds to

enter

calibration mode

. The

display will show “CAL” during
calibration procedure. The blinking
“ZERO”

asks for instrument zeroing.

• Place the CAL CHECK

Standard

HI 96728-11

Cuvette A into the cuvette

holder and ensure that the notch on the
cap is positioned securely into the groove.

• Press ZERO/CFM and the lamp, cuvette

and detector icons will appear on the
display, depending on the measurement
phase.