| Hioki CURRENT UNIT 8971 General Specifications |
| Measurement functions |
No. of channels: 2, Current measurement with optional current sensor |
| Input terminals |
Sensor connector (input impedance 1 MO, exclusive connector for current sensor via the CONVERSION CABLE 9318, common GND with recorder) |
| Compatible current sensors |
CT6862, CT6863, 9709, CT6865, CT6841, CT6843, CT6844, CT6845, CT6846, 9272-10 (To connect to the 8971 via the CONVERSION CABLE 9318) |
| Measurement range |
Using 9272-10 (20 A), CT6841: 2 A to 100 A f.s., 6 ranges
Using CT6862: 4 A to 200 A f.s., 6 ranges
Using 9272-10 (200 A), CT6843, CT6863: 20 A to 1000 A f.s., 6 ranges
Using CT6844, CT6845, 9709, CT6846*1, CT6865*1: 40 A to 2000 A f.s., 6 ranges
*1: The conversion ratio needs to be set to 2 for scaling |
Measurement accuracy
(with 5 Hz filter ON)
Note: Add the accuracy and
attributes of the current sensor
being used. |
±0.65% f.s.
RMS accuracy: ±1% f.s. (DC, 30 Hz to 1 kHz), ±3% f.s. (1 kHz to 10 kHz)
RMS response time: 100 ms (rise time from 0 to 90% of full scale)
Crest factor: 2
Frequency characteristics: DC to 100 kHz ±3 dB (with AC coupling: 7 Hz to 100 kHz) |
| Measurement resolution |
1/2000 of measurement range (using 12-bit A/D conversion) |
| Maximum sampling rate |
1 MS/s (simultaneous sampling in 2 channels) |
| Other functions |
Input coupling: AC/DC/GND, Low-pass filter: 5/50/500/5 k/50 kHz |
| Dimensions |
106 mm (4.17 in) W × 19.8 mm (0.78 in) H × 196.5 mm (7.74 in) D |
| Weight |
250 g (8.8 oz) |