Dawson Tools DDM453 Podręcznik użytkownika - Strona 10

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Temperature Measurement

Range

Resolution

-20°C~1000°C

1°C

1°F

-4°F~1832°F

• Overload protection: Fuse (F600mA/600V)

MAINTENANCE

This section provides basic maintenance principles, including replacing

batteries and fuses.

Do not attempt to repair or perform any maintenance on the meter not

included in the section below unless you are qualified personnel.

CLEANING

To prevent injury or damage to the meter, do not allow moisture

inside the casing. Before opening the battery cover/case,

disconnect test leads from all circuits.

Clean the meter regularly with a damp cloth and a small amount of

detergent; do not use abrasives or solvents. Dirty/wet input jacks can

affect readings.

To clean input jacks:

1. Turn off the meter and remove test leads.

2. Brush off any dirt or contaminants from the input jacks.

3. Use a cotton swab with a cleaner/lubricant (i.e. WD40)

to clean the input jack.

4. Use a new swab on each jack to prevent cross contamination.

Accuracy

±(2.0% of reading +2 digits)

±(2.0% of reading +4 digits)

WARNING

REPLACING THE BATTERY

10.

To avoid false reading that could lead to injury or damage to the

meter, replace the batteries as soon as the "

Turn off the meter and remove the test leads before opening the

battery cover to avoid injury or damage to the meter.

To replace the

battery

1. Turn off power to the meter.

2. Remove test leads from input jacks.

3. Loosen the screw on the battery cover and remove cover from meter.

Replace used battery with a new one

5. Replace battery cover and secure to meter.

REPLACING THE FUSES

11.

To prevent injury or damage to the meter,

turn off power to the meter and disconnect test leads

from

input jacks

To replace the fuses:

1. Turn off power to the meter.

2. Remove test leads from input jacks.

Remove the 6 screws on the back case

and remove back case from meter.

Replace blow fuse(s) with new fuses of the same

electrical ratings (see specifications).

5. Replace back cover and secure to meter.

DISPOSAL / RECYCLE

12.

Caution: This symbol indicates that equipment and its accessories

shall be subject to a separate collection and correct disposal.

WARNINGS

" symbol appears.

WARNING

before opening case.