Omega Engineering HH-21, Руководство пользователя

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7
WARNING
Do not substitute a metal part for the nylon screw in the
rear case. Doing so will degrade electrical isolation of the
case.
WARNING
The battery is accessible through a cover on the back of
the instrument. To avoid electrical shock hazard, discon-
nect all temperature probes and sensors and turn the unit
off before removing the cover.
WARNING
Never use this instrument or any probe or sensor inside a
microwave oven.
CAUTION
Avoid making sharp bends in probe or sensor lead wires.
Bending lead wires at a sharp angle can damage the wire
causing probe failure.
CAUTION
When using both thermometer inputs, and a voltage differ-
ential exists between the two measurement points, at least
one probe should be electrically insulated. If not, ground-
loop current can flow through the thermocouple leads
causing measurement error or instrument damage.