12-Channel AC Current Acquisition Module
Product No.: ZH-40122A
Current range:100mA,500mA,1A,5A,10A,25A AC,etc
12 Simultaneous Sampling Channels: Independent 24-bit ADC per channel; true simultaneous acquisition, not multiplexed scanning
Class 0.2 Accuracy: 0.2% FS accuracy with 0.1% linearity across a 1000:1 dynamic range—suitable for energy audits and load profiling
Application:condition monitoring, predictive maintenance, load profiling, energy audit, IEC 61557-12, submetering, CMMS, edge controller, data logging
12-Channel AC Current Acquisition Module
Product Overview
This product is a data acquisition module for real-time measurement of 12/24 AC currents. It uses high-precision current transformers to achieve signal isolation and sensing. The signal measurement adopts a dedicated true RMS measurement chip, which can accurately measure the true RMS of various waveforms with fast speed. Widely used in street lamp monitoring, production automation monitoring, LED lamp aging.
Product Features
1.24 channels of synchronous sampling with independent A/D, completing data acquisition and update for all 24 channels in 0.1 seconds
2. High precision, using 24 bit A/D sampling, linear dynamic range can reach 1000:1
3. Good stability, measurement accuracy is not affected by environmental temperature
4. Perforation input directly
5. The communication address and baud rate have two options: dip switch setting and software setting
Performance metrics
1. Accuracy level: 0.2%
2. Perforation input aperture: diameter 5mm
3. Current range: 100mA/500mA/1A/5A/10A/15A/20A/25A AC (maximum current range of 5A for terminal input type) (or customized as an external open transformer or other)
4. Working temperature range of -40-70
5. Data update time: 100mS
6. Isolation withstand voltage: greater than 2500V DC
7. Auxiliary power supply: 9V-30V
8. Output interface: RS485 (Modbus RTU protocol)
9. Rated power consumption: less than 1W
10. Data output: 24 current values, output 10000 corresponding to the rated current range
11. Communication baud rate: 2400480096001920038400115200bps
12. Data format: odd check, even check, no check (default), 8 data bits, 1 stop bit
13. Communication settings: The communication address and baud rate have two options: dip switch setting and software setting. The default is switch setting
14. Appearance dimensions: 217x131x47mm
15. Installation method: 35mm guide rail or screw installation; Screw installation: 197x101mm, installation aperture diameter 4.5mm
Applications
1. Streetlight System Monitoring
Monitor 12 individual streetlight branch circuits simultaneously. Detect lamp failures and current anomalies in real time across multiple circuits with a single compact module. Widely deployed in municipal lighting remote monitoring systems .
2. LED Aging Test & Burn-In Racks
Acquire current data from 12 test positions in parallel. The 100ms full-channel refresh rate enables efficient data logging during LED aging and power supply burn-in tests .
3. Production Automation & Batch Testing
Monitor multiple current loops in automated production lines. RS485 Modbus-RTU output integrates directly with PLC and SCADA systems for centralized process monitoring .
4. Industrial Control Cabinet Monitoring
Compact DIN rail form factor (217×131×47mm) fits easily inside control cabinets. Monitor 12 branch circuits without taking up excessive panel space .
5. Remote Telemetry & Outdoor Installations
Wide 9-30V DC power range and -20℃ to +70℃ operating temperature support battery-backed or solar-powered remote monitoring stations in outdoor environments
