UNI-T UT321, Operating Manual

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Refer to safety information in Table 1 and the international symbols in Table 2.
Table 1. Safety Information
Before using the thermometer inspect the case. Do not use the thermometer if it
appears damaged. Look for cracks or missing plastic. Pay particular attention to the
insulation around the connectors.
Disconnect the thermocouple(s) from the thermometer before opening the case.
Replace the batteries as soon as the battery indicator (
) appears. The possibility
of false readings can lead to personal injury.
Do not use the thermometer if it operates abnormally. Protection may be impaired.
When in doubt, have the thermometer serviced.
Do not operate the thermometer around explosive gas, vapor, or dust.
Do not apply more than the rated voltage, as marked on the thermometer (30V|),
between the thermocouple(s), or between any thermocouple and earth ground.
When potential differences are anticipated between the thermocouples, use electrically
insulated thermocouples.
When servicing the thermometer, use only specified replacement parts.
Do not use the thermometer with any part of the case or cover removed.
Warning
A warning identified conditions and actions that pose hazards to the user. To avoid
electrical shock or personal injury, follow these guidelines:
Model UT321/322/323/325: OPERATING MANUAL
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