UNI-T U, Operating Manual

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Using the Thermometer
1) Plug the thermocouple(s) into the input connector(s).
2) Press the power button to turn on the thermometer.
3) Set the type of thermocouple(s) to be same of the type plug into the input
connector(s).
If no thermocouple is plugged into the selected input or the thermocouple is “open”
and the over-range positive deviation is too big, the display shows “_ _ _ _“.
Changing Setup Options
Use Setup to change the following settings:
Logging interval
Thermocouple type Offset (T1) Offset (T2) (UT322 and
UT325 only) Sleep Mode Line Frequency Time (S-T) Low Limit Alarm
(Lo) (UT323 and UT325 only) High Limit Alarm (Hi) (UT323 and UT325 only)
Over Limit Signal Output (SI) ON/OFF (UT323 and UT325 only) Normal
Temperature Compensation (NTC) ON/OFF DEBUG ON/OFF (UT323 and UT325
only) Save setting and return to normal measurement mode.
Model UT321/322/323/325: OPERATING MANUAL
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