User Guide

ary LCD will show the first calibration point (0°C).

• When the reading becomes stable, if the temperature value

is close to the calibration point the CFM tag starts blink-

ing, otherwise the WRONG indicator will flash.

• In the first case press the CFM key to confirm calibration.

The meter will proceed showing the scrolling message “Press

CFM again to confirm the current buffer or right to es-

cape” (to prevent from confirming the calibration point

inadvertently).

• Pressing again the CFM key, the sec-

ondary LCD will display the second

calibration point.

• In the case the measured temperature is not close to the

calibration value, the meter remains in the WRONG status

until the reading becomes unstable or the calibration mode

is exited (by pressing the CAL key).

• When performing the second calibration point, it is pos-

sible to choose between two values, 25°C and 50°C. Pressing

the  or  key the value on the secondary LCD will switch

between the two possibilities.

• Once selected the value, immerse the temperature probe

in the second beaker as near as possible to the Checktemp

and the calibration procedure will be the same as for the

first point.

VOLT CALIBRATION

Check that the code 90 has been entered in Setup mode.

The instrument is factory calibrated; however the user may

also perform the Volt calibration, which is a procedure avail-

able for the instrument configured as pH meter only.