Pro'sKit MT-1236, Руководство пользователя

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4.2.10 Temperature
Measuring Range Resolution Accuracy
-20
℃～
1000
℃
1
℃
±
（
1% re3 digits
）
-4
℉～
1832
℉
1
℉
±
（
1% re3 digits
）
Overload protection:250V DC/AC
5. Meter maintenance
This section provides the basic information on maintenance, including the
descriptions about replacement of protective tubes and batteries. Do not attempt
the meter maintenance unless you are experienced in maintenance and have read
the information on calibration, performance test and maintenance.
5.1 General maintenance
To avoid any electric shock or damage to the meter, do not
attempt to clean the inside of the meter. You must remove
the line connecting a test lead to input signals, before
opening the case or battery cover.
You must regularly use damp cloth and a small quantity of detergent to clean the
meter's shell. Don't attempt the use of any abrading or chemical solvent.
The dirty or damp input socket may affect reading.
Steps for cleaning input sockets:

Disenable the meter and pull all test leads out of the input socket.

Clean up all dirty substances on sockets.

Use a new cotton ball with a detergent or lubricant to clean each socket,
because lubricant can prevent the socket vulnerable to dampness from
pollution.
5.2 Battery & fuse replacement
To avoid any electric shock or personal injury as a result of
incorrect reading, replace batteries once the symbol “
”
appear on the display unit.
To avoid any electric shock or personal injury, don't attempt to
open the battery cover to replace batteries, unless you have
already powered off the device and carried out an examination
to ensure that the test lead has been disconnected from the
circuit to be measured.
Battery replacement:
1. Turn off the power of the meter.
2. Disconnect all test leads from the input socket.
3. Use a screwdriver to remove the screw of battery cover.
4. Take off the battery cover.