General Maintenance - Prokit's Industries Pro's Kit MT-1280D User Manual

3.4.11 AC Current:
Measuring range
60mA
600mA
20A

Overload protection: mA measuring range for F500mA/250V; 20A
measuring range for F10A/250V.

Frequency response: 40Hz-1kHz True RMS.

Maximal input current: mA position: 600mA DC/AC (effective value);
20A position: 20A DC/AC (effective value).

When the measuring current is over 5A, please do not measure over
10 seconds, and after each measurement shall stop 1 min.

When the LCD shows "FUSE" and the buzzer alarms, the fuse is
burnt. Please replace the fuse.
3.4.12 Temperature:
Measuring range
-20˚C~1000˚C
-4˚F ~ 1832˚F

Overload protection: 250V DC/AC.
4. Maintenance
This section provides the basic information on maintenance, including the
replacement of fuse and batteries. Do not attempt the meter maintenance
unless you are experienced technician.

4.1 General Maintenance:

To avoid any electric shock or damage to the meter, do not
attempt to clean the inside of the meter. You must disconnect
all the lines, 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. A dirty or damp input socket may affect reading.

Cut off the power & remove all the test leads.

Clean up all dirty substances on sockets.

Use a new cotton ball with a detergent or lubricant to clean each
Resolution
0.01mA
0.1mA
0.01A
Resolution
1˚C
1˚F
16
Accuracy
±(1.0% readings +3 digits)
±(2.0% readings +10 digits)
Accuracy
 (1.0% readings +3 digits)
 (1.0% readings +3 digits)