User Manual

9999counts Handheld multimeter
7/15
2-3-3.DC Current (DC m A)
The maximum measured pressure drop：1V；
Overload protection：100mA/1A:1A/250V Speed Glass Fuse;
The specific operation is as follows:
The right figure is DC m A schematic diagram,
1. Insert the black test lead into the "COM" socket, insert the red test
lead into the "m A " jack (max. 1A); "SELECT" key to switch between AC and DC current;
2. Turn the range switch to the corresponding DCA position, then insert the
instrument into the circuit pending to test. The current value of the measured current and the polarity of the red test point will also be displayed on the
screen at the same time.
Note:
1) The instrument series connection to the circuit pending to test before the circuit should be the first power off;
2)If there is no concept of the measured current range in advance, the range switch should be transferred to the highest range, and then according to
the display value to the corresponding file; such as the screen display "0L" that has exceeded the range, needed to turn the range switch to the
appropriate gear ;
3) The maximum input current is 600mA (depending on the location of the red test pen inserted), excessive current will damage the ma file fuse.
4) When the test leads are plugged into the current input terminals, do not connect the test leads to any circuit in parallel or it will damages the fuses
and the instrument.
5) After the completion of all the measurement operation, you should first turn off the power and then disconnect the test leads and the measured
circuit connection, especially to high current measurement.
6) It is forbidden to input more than 36V DC, 25V AC voltage between the current jack and the "COM" jack.
Accuracy
Range
9999counts
Resolution
100mA
±（1.2%+10）
10uA
1000mA
100uA