Kikusui KHA3000, Operation Manual, Page: 356 / 392

356
KHA3000
Specifications
Current Measurement Function
External Current Input Terminal (EXT INPUT)
Item Specifications
Range 0.5 A/1 A/2 A/5 A/10 A/20 A/ 40 A
Allowable crest
factor 0.5 A to 20 A range 4
40 A range
2.5 and 4 (up to 20 ms)
Display item TrueRMS and ± peak
Accuracy
*1
*1. Accuracy is not specified for
±
Peak. PLL is in the Lock state, in the effective input range, and with anti-
aliasing filter cutoff frequency 6 kHz. Specified for the ambient temperature of 18
°C
to 28
°C
and relative
humidity of 20 % to 80 % (without condensation). When scaling is used, the voltage range shown on the
display is the "range" value.
45 Hz to
65 Hz
0.5 A
range
± (0.5 % of rdng+0.2 % of range)
1 A to
40 A
range
± (0.5 % of rdng+0.1 % of range)
66 Hz to
2.4 kHz
0.5 A
range
± ((0.5+0.417 × n kHz)% of rdng+0.2 % of range)
: n is frequency.
1 A to
40 A
range
± ((0.5+0.417 × n kHz)% of rdng+0.1 % of range)
: n is frequency.
2.4 kHz to 9 kHz Accuracy not specified.
Resolution
(RMS/Peak) 0.5 A range 0.0001 A/0.0001 A
1 A range 0.0001 A/0.0002 A
2 A range 0.0001 A/0.0004 A
5 A range 0.0001 A/0.001 A
10 A range 0.001 A/0.002 A
20 A range 0.001 A/0.004 A
40 A range 0.001 A/0.008 A
Display range
(RMS/Peak) 0.5 A to 10 A range
120 % of the range/400 % of the range
Effective input
range 0.5 A range 50 % to 110 % of the range
1 A to 40 A range 20 % to 110 % of the range
Excess input display “ Over ” is displayed when the ± peak value or RMS value exceeds
the display range.
Item Specifications
Input method Voltage input (BNC terminal)
Input impedance 1 M

± 10 %
Maximum input voltage ± 5 Vpeak
Display current/input voltage ratio ± 20 Apeak/1 Vpp (40 Arms/1 Vrms)
Display current/
input voltage ratio
(for each range)
*1
*1. Accuracy is not specified for
±
Peak. PLL is in the Lock state, in the effective input range, and with anti-
aliasing filter cutoff frequency 6 kHz.
0.5 A range ± 2.0000 Apeak/0.1000 Vpp
1 A range ± 4.0000 Apeak/0.2000 Vpp
2 A range ± 8.0000 Apeak/0.4000 Vpp
5 A range ± 7.0710 Apeak/0.3535 Vpp
(± 20.0000 Apeak/1.0000 Vpp or equivalent)
10 A range ± 40.0000 Apeak/2.000 Vpp
20 A range ± 80.0000 Apeak/4.000 Vpp
40 A range ± 160.0000 Apeak/8.000 Vpp
Measurement accuracy
*2
*2. Specified for the ambient temperature of 18
°C
to 28
°C
and relative humidity of 20 % to 80 % (without
condensation).
± ( | Current measurement accuracy | + External shunt ac
0.5 % of range)