6 Channel Fully Isolated 500V-2000V DC High Voltage Data Acquisition Module RS485 Modbus TCP
Product No.: ZH-84061
Voltage Ranges: 500V/800V/1000V/1500V/2000V
Communication Interface: RS485/Ethernet
Protocol: Modbus-RTU / Modbus-TCP
Mounting Method: 35mm DIN Rail
6 Channel Fully Isolated 500V-2000V DC High Voltage Data Acquisition Module RS485 Modbus TCP
Product Overview
The 6-channel fully isolated DC high voltage acquisition module is designed for high-precision multi-channel DC voltage measurement in industrial and energy applications. Each channel adopts an independent 24-bit ADC and independent isolation architecture, ensuring excellent measurement accuracy, electrical safety, and anti-interference performance.
The module supports simultaneous synchronous sampling of 6 voltage channels with fast update rates as low as 20ms. Power supply, communication interface, and input channels are fully isolated from each other, providing isolation withstand voltage greater than 4kV DC.
Communication interfaces include RS485 Modbus-RTU and optional Ethernet Modbus-TCP, making the device suitable for integration into industrial automation systems, energy storage systems, EV charging infrastructure, photovoltaic monitoring, and battery management applications.
Key Features
1.6-channel synchronous high-voltage acquisition
2.Independent 24-bit ADC for each channel
3. Full isolation between channels, power, and communication
4.Isolation withstand voltage >4kV DC
5.High-speed update rate down to 20ms
6.Floating-point data output
7.High precision better than 0.1%
8.Resolution up to 1/100000 of full scale
9.RS485 Modbus-RTU communication
10.Optional Ethernet Modbus-TCP communication
11.Configurable baud rate and communication address
12.Hardware DIP switch and software configuration supported
13.Wide power supply input +9V to +55V DC
14.Active upload function supported
15.Industrial-grade ARM MCU with strong anti-interference capability
16.7.62mm large-pitch pluggable terminals for easy wiring
17.Standard 35mm DIN rail mounting
Model Selection
ZH-84061D-14M2/#V:6-channel isolated DC high voltage acquisition module with RS485
ZH-84061D-34M2/#V:6-channel isolated DC high voltage acquisition module with Ethernet + RS485
Example ordering model:ZH-84061D-14M2/2000V,represents a 2000V range module.
Technical Specifications
| Parameter | Specification |
|
Accuracy |
Better than 0.1% |
|
Linearity Accuracy |
Better than 0.01% |
|
Resolution |
1/100000 FS |
|
Voltage Ranges |
500V / 800V / 1000V / 1500V / 2000V |
|
Overload Capacity |
1.2× continuous measurable overload |
|
Input Impedance |
>10MΩ |
Configurable data update intervals:
20ms/40ms/60ms/80ms/100ms (default)/200ms/300ms/400ms
The module can complete synchronous updates for all 6 channels within the configured period.
|
Parameter |
Specification |
|
Channel Isolation |
Independent isolation per channel |
|
Power Isolation |
Fully isolated |
|
Communication Isolation |
Fully isolated |
|
Isolation Voltage |
>4kV DC |
Communication Interface
RS485 Communication
Default factory serial settings:
Parameter
Specification
Protocol
Modbus-RTU
Baud Rates
4800/9600/19200/38400/57600/115200 bps
Data Format
8 data bits
Parity
None/Odd/Even
Stop Bit
1 or 2 selectable
Address: 1,Baud Rate: 9600bps,Parity: None,Data Bits: 8,Stop Bit: 1
Ethernet Communication (Optional)
|
Parameter |
Specification |
|
Protocol |
Modbus-TCP |
|
Default IP |
192.168.2.7 |
|
Port |
20108 |
|
Web Login Account |
admin |
|
Web Login Password |
admin |
Optional multi-host polling function is available for customized applications.
Electrical Characteristics
Mechanical Specifications
Parameter
Specification
Auxiliary Power Supply
+9V ~ +55V DC
RS485 Power Consumption
<2W
Ethernet Power Consumption
<3W
Operating Temperature
-40°C ~ +70°C
Parameter
Specification
Mounting Method
35mm DIN Rail
Dimensions
120 × 110.5 × 46 mm
Weight
Approx. 430g
Applications
* EV charging stations
* Energy storage systems
* Solar photovoltaic systems
* Battery pack monitoring
* High-voltage DC power systems
* Industrial automation
* New energy vehicles
* High-voltage laboratory testing
* Battery management systems (BMS)
* Industrial IoT monitoring
FAQ
1. What is this high voltage acquisition module used for?This module is designed for high-precision DC high voltage measurement and monitoring in industrial and energy applications such as EV charging stations, solar photovoltaic systems, energy storage systems, battery management systems, and industrial automation equipment.
2. How many voltage channels does the module support?
The module supports simultaneous acquisition of 6 independent DC high voltage channels.
3. Are all channels electrically isolated?
Yes. Each voltage channel is independently isolated, and the power supply, communication interface, and input channels are fully isolated from each other.
4. What is the isolation voltage rating?
The isolation withstand voltage is greater than 4kV DC, suitable for high-voltage industrial environments.
5. What communication protocols are supported?
The module supports:
* RS485 with Modbus-RTU protocol
* Ethernet with Modbus-TCP protocol (optional models)
6. What voltage ranges are available?
Standard voltage ranges include:* 500V* 800V* 1000V* 1500V* 2000V
Custom voltage ranges are also available.
