User Guide

TEMPERATURE CALIBRATIONTEMPERATURE CALIBRATION

TEMPERATURE CALIBRATION

(HI 9039, HI 933100(HI 9039, HI 933100

(HI 9039, HI 933100

and and

and

HI 9635HI 9635

HI 9635

only only

only

))

)

0 °C

(32 °F)

°C

50 °C

(122 °F)

°C

INITIAL PREPARATION

Prepare a container of ice and water and another container with hot

water at a temperature of 50°C. Place insulation material around the

containers to minimize temperature changes.

Use a CHECKTEMPC or a calibrated thermometer with a resolution of

0.1 as reference thermometer.

Note: After temperature calibration, recalibrate the instrument (for

conductivity or fertilizer content).

• Press CAL and ON/OFF simultaneously.

• Immerse the conductivity probe into the

0°C (32°F) bath.

• When the reading stabilizes, press CAL. "0.0°C", "CAL" symbol

and an intermittent "BUF" indicator will be displayed. " "

symbol will blink for a few seconds.

• " " symbol will disappear from the

display when the reading is stable and

"CON" will start blinking.

• Press CFM to confirm the calibration value.

ON/OFF

RANGE CAL

0 °C

(32 °F)

°C

CAL

BUF

CAL

°C

CON

CFM