― 8 ―
― 8 ―
(2) Refer to Table 1 for output voltage against input. Set the
multimeter to the appropriate range. When using a digital
multimeter(3-1/2 digit), select the 200mV DC or 2V DC range.
Table 1
Note :
Measurements can be made up to 5A at the 2A range
position and up to 50A at the 20A range position.
(3) Before making measurements，adjust DC A 0 Adj. control
knob to zero output. For accurate measurements, it is a
recommended practice to make this zero adjustment for
every measurement. It is also necessary to make the zero
adjustment after every range changing as it may cause the
instrument to be off zero.
(4) Press the trigger to open the transformer jaws and clamp onto
one conductor only. Since the current measured will be displayed
as voltage, read it in amperes according to each range. For example,
take the reading as follows using a 3-2/1 digit digital multimeter.
Table 2
Note :
The display may slightly flicker on the 2A range because
of high sensitivity when the 200mV range is used.
Range Switch
Position
2A DC
20A DC
200A DC
Output Voltage
0−500.0mV(100mV/A) against 0−5A DC input
0−500.0mV(10mV/A) against 0−50A DC input
0−200.0mV(1mV/A) against 0−200A DC input
Range Switch
Position
2A
20A
200A
Digital Tester Readings
200mV Range
50.0mV
100.0mV
−
50.0mV
100.0mV
−
50.0mV
100.0mV
2V Range
0.050V
0.100V
0.500V
0.050V
0.100V
0.500V
0.050V
0.100V
0.50A
1.00A
5.00A
5.0A
10.0A
50.0A
50A
100A
Currents
measured
