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KPS-MT40 • Digital multimeter
ENG
4.2.10 AC Current
Range
Resolution
Accuracy
20A
10µA
±(1,0% of r 5 digits)
200mA
0,1mA
±(1,8% of r 5 digits)
10A
10mA
±(3,0% of r 5 digits)
Overload protection: fuse with measuring range of mA (F250mA/250V); fuse
with measuring range of 10A (FF10A /500V)
Maximum input current: mA grade: 200mA DC or AC RMS; 10A grade: 10A
DC or AC RMS
When measured current is greater than 10A, continuous measurement time
should not be more than 10 seconds. Stop the current being measured after
15 minutes.
Frequency response: 40Hz-400Hz, sine wave RMS (average response)
5. METER MAINTENANCE
This section provides basic maintenance information, including instructions for
replacement of fuse and battery. Do not try to repair the meter unless you are
an experienced maintenance person with the relevant calibration, performance
testing and maintenance data.
5.1 General maintenance
Regularly clean the meter shell with damp cloth and a small amount of deter-
gent. Do not use abrasives or chemical solvents.
If you make input socket dirty or wet, it may affect the readings..
To clean input socket:
• Turn off the meter, and pull out all test probes from the input socket.
• Remove all dirt from the socket.
•
Apply detergent or lubricant (such as WD-40) to a new cotton ball.
• Clean each socket with a cotton ball. Lubricant can prevent contamination
related with moisture on the socket.
5.2 Replace battery and fuse
Please follow below steps to replace battery or fuse:
1. Turn off the power supply of the meter.
2. Pull out all test probes from the input socket.
