Datasheet

6
Electrical Specifications for U1211A (continued)
Capacitance
Range Resolution Accuracy Overload protection
400 µF 0.1 µF 2 % + 4
1000 V R.M.S. for circuits
< 0.3 A of short circuit current
4000 µF 1 µF 3 % + 4
• The accuracy is based on film capacitor or better and use Relative mode to zero residual value
AC current
Range Resolution
Accuracy *N1
45~65 Hz 65~400 Hz 400 Hz~1 kHz
40 A 0.01 A 1.0 % + 10 1.0 % + 10 3.0 % + 10
400 A 0.1 A 1.0 % + 5 1.0 % + 5 3.0 % + 5
400~700 A 1 A 1.0 % + 5 1.0 % + 5 3.0 % + 5
700~1000 A 1 A 1.0 % + 5 None None
• Maximum overload: 1000 A R.M.S. The accuracy is specified on the symmetrical waveforms.
• N1: The maximum verification of current and frequency product is less than 400,000 A x Hz
WARNING:
The measuring duty cycle should not exceed the following limits.
0 ~ 600 A R.M.S. Continuous
600 ~ 700 A R.M.S. 10 minutes ON, 10 minutes OFF
700 ~ 1000 A R.M.S. 5 minutes ON, 20 minutes OFF
Current (1 ms peak hold)
Range Resolution Accuracy Maximum overload
40 A 0.01 A 2.0 % + 70
1000 A R.M.S.400 A 0.1 A 2.0 % + 43
1000 A 1 A 2.0 % + 43
• Specified accuracy for changes > 1 ms in duration