8 Channel DIN Rail AC Voltage and Current Acquisition Module

8 Channel DIN Rail AC Voltage and Current Acquisition Module

Product Overview
This product is a 8-channel AC acquisition module capable of measuring up to 8 channels of AC signals. It supports flexible configuration for 8 channels of voltage measurement, 8 channels of current measurement, or any combination of voltage and current inputs.
The device supports both fundamental and harmonic parameter measurement. It features high linear accuracy and a resolution up to 0.01% FS. True RMS measurement technology ensures high accuracy and stable performance.
The system is built around a 32-bit ARM industrial-grade MCU, providing strong anti-interference capability. Power supply, input channels, and communication interfaces are fully isolated to ensure high reliability.
Communication output supports RS485 or Ethernet (RJ45), fully compatible with Modbus RTU and Modbus TCP protocols, and can be easily integrated with PLC systems and various SCADA software platforms.
Key Features
1.Wide power supply range: DC 10–30V or 10–55V optional
2.Supports total 16-channel measurement with total harmonic, 1–31st harmonic, and RMS harmonic values
3.Supports 3-channel frequency measurement
4.Network communication supports multi-host polling mode (response differentiation for multiple hosts)
5.Communication baud rate and device address configurable via software or hardware switches
6.Flexible configuration of 16 channels with customizable voltage/current combinations
7.Supports Modbus-RTU and Modbus-TCP protocols
8.Fully isolated power input, independent isolation for each channel, and isolated communication output
9.Industrial-grade 32-bit MCU with isolated RS485 transceiver for high reliability
10.Plug-in terminal design for easy installation and wiring
Product Models
ZH-40161H-34M2/#V — 16-channel voltage acquisition, 10–30VDC power supply, Ethernet + RS485
ZH-40161H-14M2/#V — 16-channel voltage acquisition, 10–30VDC power supply, RS485
ZH-40162H-34M2/#A — 16-channel current acquisition, 10–30VDC power supply, Ethernet + RS485
ZH-40162H-14M2/#A — 16-channel current acquisition, 10–30VDC power supply, RS485
ZH-40163H-34M2/#V*#A — 16-channel combined AC acquisition (voltage + current), 10–30VDC power supply, Ethernet + RS485
ZH-40163H-14M2/#V*#A — 16-channel combined AC acquisition (voltage + current), 10–30VDC power supply, RS485
Note: In model suffix “-14M2”, the digit “4” represents 24V power supply version. For wide-range power supply (9–55V), replace with “-15M2”.
Performance Specifications
1.Accuracy Class: 0.2%, with linear accuracy better than 0.1%
2.Resolution: 0.01% FS (1/10,000 of full scale)
3.Current Ranges: 10mA, 100mA, 500mA, 1A, 5A AC (custom ranges available; mA input requires external precision CT)
4.Voltage Ranges: 10V, 100V, 300V, 400V, 500V AC
5.Overload Capability: Current supports 2× overload measurement; voltage supports 1.5× overload
6.Voltage Input Impedance: 2KΩ/V (e.g., 250V input = 500KΩ impedance)
7.Frequency Response: 30Hz–1kHz (supports simultaneous 3-channel frequency measurement)
8.Operating Temperature: -40°C to +70°C
9.Temperature Drift: ≤100 ppm/°C
10.Data Update Rate: 300 ms (harmonic data approx. 2 seconds; harmonic function disabled by default)
11.Isolation Withstand Voltage: >2500 VDC
12.Auxiliary Power Supply: +10V to +30VDC or +10V to +55VDC
13.Power Consumption: <1W
14.Communication Interface: RS485 or Ethernet (RJ45)
15.Communication Protocols: Modbus-RTU / Modbus-TCP
16.Data Output: 16-channel AC RMS values / 3-channel frequency / harmonic data
17.Baud Rates: 4800 / 9600 / 19200 / 38400 / 57600 / 115200 bps (Ethernet auto-config, no manual setting required)
18.Data Format: No parity / odd parity / even parity; 8 data bits; 1 or 2 stop bits configurable
19.Installation: 35mm DIN rail mounting
20.Dimensions: 120 × 110.5 × 46 mm
21.Weight: approx. 350g

Applications

This module is widely used in:

1.Industrial automation system

2.Smart energy management systems (EMS)

3.Electrical distribution cabinets

4.Data centers power monitoring

5.Factory equipment monitoring

6.HVAC and industrial furnace systems

7.Smart grid and substation monitoring