Hanna Instruments HI 4321 User Manual

Page 42

Make sure the instrument has been calibrated before taking conductivity measurements.

DIRECT MEASUREMENT
To measure the conductivity of a sample using the Direct reading
mode:
• Press

and then

to select conductivity

measure mode.

• Select the

Direct

reading mode (see

Conductivity

Setup

• Submerge the conductivity probe and tap

it repeatedly to

remove any air bubbles that may be trapped inside the sleeve.

Allow time for the reading to stabilize.

• The measured conductivity value will be displayed.

Note: If the reading is out of range, “-----” will be displayed.

DIRECT/AUTOHOLD MEASUREMENT
To measure conductivity of a sample using the Direct/AutoHold
reading mode:
• Select the Direct/AutoHold reading mode (see

Conductivity

Setup

• If pressing

, the “AutoHold” indicator will start blink-

ing on the display until the stability criterion is reached. The
conductivity value will be frozen on the display, along with
“AutoHold” indicator.

• To return to normal measure mode press

CONDUCTIVITY MEASUREMENT