User Guide

CAL

BUF

µS

°C

CAL

PROCEDURE FOR HI 933100

• Make sure that the conductivity probe is

connected to the meter securely by align-

ing the pins with the socket, pushing the

plug in and tightening the threaded

ring.

• Dry the probe and leave it in the air.

• Turn the instrument on by pressing ON/OFF.

• Press CAL to display "0.0 µS" together with the "CAL" symbol and

an intermittent "BUF" indicator.

• "

" will disappear from the display

when the reading is stable and the "CON"

symbol will start blinking.

• Press CFM to confirm the calibration value

and exit the calibration mode.

• Fill a beaker with 8 cm (3¼") of

HI 7031/HI 8031, at 1413 µS/cm

@25°C, or HI 7030/HI 8030, at

12880 µS/cm @25°C (if possible fill

two beakers and use one as rinse and

the other for calibration).

• Immerse the probe into the beaker. The

level of solution must be higher than the

holes on the PVC sleeve.

• Tap the probe gently on the bottom of the beaker and stir it to

ensure that no air bubbles are trapped inside the sleeve.

• Press CAL to display "1413 µS" together with the "CAL" symbol

and an intermittent "BUF" indicator.

•Press BUF if you are calibrating with HI 7030/

HI 8030 to display "12.88mS" instead of

"1413 µS".

ON/OFF

CAL

CFM

BUF