8 Channel Voltage Current Fully Isolated DC Voltage Current DAQ System (Through-Hole Type)
Product No.: ZH-44084A
Current Range: 5A,10A,20A,30A,40A,50A,60A DC(customizable)
Voltage Range: 5V,10V,30V,60V,100V,250V,400V,500V,1000V DC (customizable)
Through-Hole Diameter: φ8.5 mm
Mounting: 35 mm DIN rail
DIN Rail 2500V Isolated 8-Channel DC Voltage Current Signal Acquisition Module with Hall Sensor & Modbus RTU/TCP
Product Overview
This product is a combined collector for detecting 8 channels of voltage, current, and power. It uses a closed-loop Hall sensor with perforated input to detect current. Linear optocoupler isolation is used between the 8 voltage channels to achieve full electrical isolation of each channel, and they are not grounded to each other. The signal measurement uses a true effective value measurement chip to measure effective value parameters such as current, voltage, power, and accumulated electricity, with high accuracy, good stability, and fast sampling speed; Equipped with RS485 and Ethernet communication interfaces, standard Modbus RTU or Modbus TCP protocols. Widely used in product aging, production automation testing, computer room monitoring, non-standard automation equipment, etc.
Model Selection
ZH-44084A-14F5/#V*#A:8 channel DC current and voltage combination acquisition module(RS485 interface)
ZH-44084A-34F5/#V*#A:8 channel DC current and voltage combination acquisition module(RS485 or Ethernet communication)
ZH-41084A-14F5/#V*#A:8 channel DC and AC universal current and voltage combination acquisition module(RS485 interface)
ZH-41084A-34F5/#V*#A:8 channel DC and AC universal current and voltage combination acquisition module(RS485 or Ethernet communication)
Product Features
1.Measurement of voltage, current, power, and cumulative power of 8-channel DC loads, with true RMS applicable to various waveforms and universal measurement for AC and DC
2.Fast speed, 8-channel independent AD synchronous sampling, can complete data acquisition of all 8 electrical parameters in just 10mS at the fastest
3.Adopting a closed-loop current sensor with high accuracy, linear error less than 0.2%, and 24 bit high-precision AD sampling internally
4.High reliability, linear optocouplers are used to isolate the 8 voltage channels from each other, and the power supply, communication, and tested end are fully isolated, with a withstand voltage greater than 2500V
5.Eight types of data collection: 10mS, 20mS, 40mS, 60mS, 80mS, 100mS, 400mS, and 1000mS.
Adjustable speed, which means completing the measurement of all electrical parameters within the set time; Can be set as an active upload function
6.It has unipolar and bipolar measurement functions, can be selected for use, and has maximum value recording function
Technical Specification
Applications
Parameter
Specification
Accuracy level
better than 0.5%; Resolution: One ten thousandth of the measuring range
Current range
5A, 10A, 20A, 30A, 40A
Voltage range
5V, 10V, 30V, 60V, 100V, 250V, 400V,500V, 1000VDC, etc. can be customized
Current perforation aperture
ф 8.5mm; Working temperature: -40 ℃~+70 ℃
Frequency response
0-1000Hz (AC/DC universal)
Data update time
20mS, 40mS, 60mS, 80mS, 100mS (default)Recognition, 400mS, 1000mS can be set
Isolation withstand voltage
>2500V DC
Auxiliary power supply
+18V~36V DC; Rated power consumption:<4W (24V 150mA)
Output interface
RS485 or Ethernet (standard Modbus RTU or Modbus TCP communication) Communication Protocol
Data output
8 channels of DC voltage, current, power, accumulated power, maximum value
Communication baud rates
4800, 9600, 19200, 38400, 57600, 115200 bps
Installation method
35mm rail installation, appearance size: 215 × 87 × 50mm, weight:300 gram
1.Component Aging & Burn-in Racks:
Real-time multi-channel tracking of voltage, current, and power during electronic component stress tests.
2.Industrial Automation&Testing:
High-density automated production line inspection and multi-circuit power distribution panels.
3.Data Centers & Telecom Infrastructure:
Monitoring heavy DC load distribution cabinets and high-capacity battery power banks.
4.Non-Standard Automation Equipment:
Custom industrial test rigs requiring isolated multi-parameter electrical data telemetry.
Why Choose Us?
1.High-Density 8-Channel Integration:
Combines 8 independent voltage and current monitoring paths into a single compact DIN-rail unit, drastically reducing wiring complexity and cabinet space.
2.Advanced Hall Effect Through-Hole Design:
Utilizes closed-loop Hall sensors (8.5mm aperture) for safe, isolated, and accurate non-contact current input.
3.Ultra-Fast Synchronous Sampling:
Delivers complete 8-channel parameter updates in as fast as 10ms, capturing high-speed transients that standard scanning modules miss.
4.True Industrial Grade Isolation:
Superior >2500V DC optical and electrical isolation prevents ground loops and safeguards backend PLCs and control systems.
FAQ
Q1: Do these modules feature internal data logging storage?
A1: No. These are real-time acquisition and transmission modules designed to stream parameters instantly to a PLC, SCADA, or upper computer via Modbus. They do not contain internal flash storage for historical data logging.
Q2: What is the benefit of the through-hole Hall sensor design?
A2: The through-hole Hall sensor allows primary current conductors to pass directly through the module (8.5mm aperture), providing galvanic isolation between the measured high-current circuit and the internal electronics.
Q3: Can this module measure both AC and DC systems?
A3: Depending on the model selected (e.g., ZH-41084A series), the units support universal AC/DC true RMS measurement across various complex waveforms.
Q4: How do I choose between RS485 and Ethernet communication?
A4: Choose RS485 (Modbus-RTU) for traditional local bus wiring and cost-effective multi-drop networks, or Ethernet (Modbus-TCP) for high-speed network integration, remote access, and IT/OT convergence.
