UEi Test Instruments DT222 - Manual (Page 7)

(4) TAKING MEASUREMENT
5
Make sure you have plugged in K or J type sensore probe on the
top of the meter, if the probe is not plugged appropriate, LCD
shows”---” on the display.
Connect thermocouple. If probe is open or not connected, the
LCD will show ”---”.
Verify thermocouple type is set correctly (see page 4)
Single input model shows T1, dual input model shows T1 and T2
Single Input: (DT221)
Dual Input: (DT222)
Press UNIT button to change unit ˚C or ˚F. The meter default
temperature unit is ˚F. The meter will default to last selected
scale.
Press UNIT
K
K
K
K
K
(5) CHANGE UNIT