U8556 is the standard wired plug-in current input unit for HIOKI LR8450 general memory hi-logger, corresponding to wireless counterpart LR8536 and high-speed version U8556-HR. It provides 5 independent PL14 ports, compatible with full series HIOKI PL14 current sensors ranging from miniature 2A CT7812 probe to large 6000A CT7046 transducer. 1ms full-channel synchronous sampling meets the demands of conventional power trend recording, with 150μs instantaneous value response time to record medium-speed inverter switching current waveforms. Single LR8450 logger can install up to 4 U8556 modules, expanding total current test channels to 20 for multi-loop synchronous monitoring of EV battery packs, charging piles and industrial servo drives. Adopts direct slot plug-in design, stable wired signal transmission without wireless delay, more cost-effective for fixed laboratory test benches.

1. 5 independent PL14 standard current sensor input channels per module
2. Min 1ms full-channel synchronous sampling interval; instantaneous value response 150μs
3. RMS frequency bandwidth DC ~ 5kHz, covers industrial frequency and medium-speed inverter signals
4. Independent sensor scaling for each channel, freely mix different-range AC/DC current probes
5. Max 4 modules plug into single LR8450 host, expandable to 20 current measuring channels
6. Compatible all HIOKI PL14 interface AC/DC current sensors (200mA ~ 6000A)
7. Direct slot plug-in installation on LR8450 host, no extra adapter required
8. Stable wired signal transmission, zero wireless data delay, strong anti-interference performance
9. Wide operating temperature -20℃ ~ +55℃, stable operation in production workshop environments
10. Cost-effective standard version for routine trend recording (lower price than U8556-HR high-speed model)

New energy vehicle battery pack charge & discharge long-term current trend logging, high-power charging pile multi-loop power consumption monitoring, photovoltaic inverter conventional power waveform recording, energy storage cabinet daily load current tracking, industrial servo motor routine aging current test, laboratory mixed high/low current synchronous trend measurement.