Amprobe TM45A Digital-Thermometer - Manual (Page 6)

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Warnings and Precautions
• When measuring surface temperatures, the potential
between the measured surface and earth ground must not
exceed 24V AC or DC. Voltages above 20V are dangerous.
• Inspect the instrument and probe before every use. Do not
use damaged parts.
• Never ground yourself when taking measurements in
electrical circuits. Do not touch exposed circuit elements or
probe tip.
• To avoid damage or burns, do not make temperature
measurements in microwave ovens.
• Do not operate instrument in an explosive atmosphere.
Caution: Repeated sharp flexing can break the thermocouple
leads. To prolong lead life, avoid sharp bends in the leads,
especially near the connector.
Preparation for Use - Unpacking
Your shipping carton should include the digital thermometer
with four 1.5V AAA size batteries installed, one 1.2m type K
thermocouple probe, a soft carrying case and this manual. If
any of the items are damaged or missing, return to the place of
purchase for an exchange.
Measuring Procedure
1. Connect the K-type thermocouple probe to the instrument.
2. Turn instrument on by sliding the function switch to the
desired resolution (1° or 0.1°).
3. Push the selector key to select °C or °F (corresponding
symbol appears on display).
4. Apply the probe to the medium that the temperature is to
be measured.
5. Read the measured temperature on the digital display.
DATA HOLD: When measuring in tight locations or dark areas
you can push the DATA HOLD button to “freeze” the reading
on the display. � is displayed. Push the DATA HOLD button
again to resume normal display of current value.
MAX HOLD: Push this button to monitor a temperature over a
longer time period. MAX is displayed. The maximum value is kept
on the display and is updated each time a higher value is measured.
Pressing DATA HOLD while MAX recording is activated interrupts
recording; pressing DATA HOLD again resumes recording. Press
MAX HOLD again to return to normal measuring mode.