Specifications and Characteristics 6
U3402A User’s and Service Guide 95
True RMS AC Current (AC Coupling Mode)
Table 6 - 4 AC current resolution, full scale reading, burden voltage, and accuracy [± (% of reading +
count)]
Rate Range Resolution
Maximum
reading
Burden voltage
[1]
Accuracy (One year; 23ºC ± 5ºC)
[2]
20 Hz to 45 Hz 45 Hz to 2 kHz
2 kHz to 10
kHz
Slow
12.0000 mA
120.000 mA
1200.00 mA
12.0000 A
0.0001 mA
0.001 mA
0.01 mA
0.0001A
11.9999
119.999
1199.99
11.9999
< 0.15 V
< 1.5 V
< 0.3 V
< 0.6 V
1.5% + 100
1.5% + 100
1.5% + 100
2% + 100 (<1.2 A)
0.5% + 100
0.5% + 100
0.5% + 100
1% + 100
2% + 200
2% + 200
2% + 200
–
Med
40.000 mA
120.00 mA
1200.0 mA
12.000 A
0.001 mA
0.01 mA
0.1 mA
0.001 A
39.999
119.99
1199.9
11.999
< 0.5 V
< 1.5 V
< 0.3 V
< 0.6 V
1.5% + 40
1.5% + 12
1.5% + 12
1.5% + 12 (<1.2 A)
0.5% + 40
0.5% + 12
0.5% + 12
1% + 12
2% + 80
2% + 30
2% + 30
–
Fast
40.00 mA
120.0 mA
1200 mA
12.00 A
0.01 mA
0.1 mA
1 mA
0.01 A
39.99
119.9
1199
11.99
< 0.5 V
< 1.5 V
< 0.3 V
< 0.6 V
1.5% + 5
1.5% + 2
1.5% + 2
2% + 2 (<1.2 A)
0.5% + 5
0.5% + 2
0.5% + 2
1% + 2
2% + 10
2% + 5
2% + 5
–
Notes:
1 Typical at full scale reading and voltage across the input terminals.
2 Specified accuracy at input > 5% of full scale.