REED INSTRUMENTS ST-612 Manuel D'utilisation page 5

Differential Temperature Measurement
Differential temperature measurement is selected by pressing the T1-T2
key. This causes the thermometer to display the temperature difference
between the two thermocouples (the temperature of thermocouple T1
minus the temperature of thermocouple T2). The selection is indicated by
the input selection cursor.
Selecting the Display Resolution
The thermometer allows two choices of resolution:
High resolution: 0.1 °C or 0.1 °F; Low resolution: 1 °C or 1 °F
Additional Functions
Overload Display
The digital display will indicate 1 when the input exceeds the measure-
ment range selected.
If measuring above199.9º, change the resolution to 1º. Be certain to seat
the thermocouple connector properly and that the leads are not broken.
Hold Mode
Press the HOLD key to enter the Data Hold mode, the "HOLD" annuncia-
tor is displayed. When HOLD mode is selected, the thermometer holds
the present readings and stops all further measurements.
Pressing the HOLD key again cancels HOLD mode, causing the thermom-
eter to resume taking measurements.
Backlight Mode
Press the Backlight key to turn on the LCD backlighting function. Press
the Backlight key again to turn off the LCD backlighting function.
reedinstruments
5
www
com