Instruction Manual

TEMPERATURE COMPENSATIONTEMPERATURE COMPENSATION

TEMPERATURE COMPENSATION

utoEndutoEnd

utoEnd

To freeze the first stable reading on the LCD

press AutoEnd while the instrument is in

measurement mode.

The ”HOLD” tag will be displayed blinking on

the LCD until the reading is stabilized.

When the reading is stable, the “HOLD” tag

stops blinking and the reading is frozen on

the LCD.

Press AutoEnd again to return to normal measurement mode.

Note: • Pressing Range the instrument will skip to the displayed

range, without leaving AutoEnd mode. The Log key also

holds AutoEnd mode.

• Pressing 2nd then Setup, GLP or RCL, the instrument

leaves AutoEnd mode and performs the selected function.

The EC reading is affected by temperature and changes in ion concentration.

To measure only one variable, conductivity measurements are normally

compensated to a fixed temperature. This reference temperature is

configured in SETUP parameter rEF. See page 18.

Three options of temperature compensation are available:

Automatic (Atc): The probe has a built-in temperature sensor; the

value of the temperature is used to automatically compensate the EC/TDS

measurement to a reference temperature. This is the default option.

Manual (Mtc): The temperature value, shown on the lower LCD, can be

manually set by the user with the up and down arrow keys to the

solution temperature. The “ºC” or “ºF” symbol blinks when this option is

active. The instrument compensates the conductivity measured at this

temperature to the reference temperature.

No Compensation (NoTC): The temperature reading shown on the

lower LCD is not taken into account. The reading displayed on the upper

LCD is the absolute EC or TDS value without temperature compensation

applied. The measurement changes due to temperature and ion

concentration. The second “ºC” or “ºF” symbol blinks when this option is

active.