LCD 24-Channel AC Data Acquisition Module - 副本
Product No.: ZH-70243H
Voltage Input Range:0~500VAC (Customizable)
Current Input Range:0~5A AC Direct Input
Supports External Current Transformers
Frequency Range:30Hz~3000Hz
24-Channel AC Data Acquisition Module with LCD Display RS485 Modbus & Harmonic Monitoring
Product Overview
The ZH-70243H LCD 24-Channel AC Data Acquisition Module provides accurate acquisition and monitoring of up to 24 AC voltage and current channels simultaneously.
Built with independent isolated inputs and high-resolution 24-bit ADC technology, the device delivers highly accurate True RMS measurements for distorted and non-linear waveforms. The integrated LCD display allows real-time local monitoring while RS485 and Ethernet communication enable seamless integration with PLCs, SCADA systems and industrial IoT platforms.
The module can be configured as:
24-Channel AC Voltage Input
24-Channel AC Current Input
12 Voltage + 12 Current Combination Input
Suitable for both single-phase and three-phase electrical systems.
Key Features
1.24 Independent Measurement Channels
Supports:
24 AC Voltage Inputs
24 AC Current Inputs
Mixed Voltage and Current Inputs
Each channel is electrically isolated for improved reliability and safety.
2.True RMS Measurement
Accurately measures:
Sine Waves
Distorted Waveforms
Non-Linear Loads
Suitable for industrial environments where waveform distortion is common.
3.Harmonic Analysis
Supports:
Fundamental RMS Measurement
Harmonic RMS Measurement
Total Harmonic Distortion (THD)
Harmonic Analysis up to the 31st Order
Ideal for power quality monitoring applications.
4.Three-Phase Monitoring Functions
When configured as three-phase groups, the module supports:
Phase Voltage Measurement
Line Voltage Measurement
Phase Sequence Detection
Vector Sum Calculation
Frequency Measurement
Suitable for power distribution and motor monitoring systems.
5.Industrial Communication
Available communication options:
RS485 Modbus RTU
RJ45 Ethernet
Modbus TCP
Compatible with:
PLC Systems
SCADA Platforms
HMI Interfaces
Industrial Gateways
Energy Management Systems
6.Integrated LCD Display
Provides local display of:
Channel Values
Harmonics
Frequency
Phase Sequence
Communication Parameters
Simplifies commissioning and maintenance.
Technical Specifications
|
Item |
Specification |
|
Model |
ZH70243H |
|
Channels |
24 Channels |
|
Measurement Type |
AC Voltage/AC Current |
|
Voltage Input |
Range 0~500VAC (Customizable) |
|
Current Input Range |
0~5A AC Direct Input |
|
CT Input |
Supports External Current Transformers |
|
Frequency Range |
30Hz~3000Hz |
|
Measurement Method |
True RMS |
|
ADC Resolution |
24-bit |
|
Accuracy |
0.2% FS |
|
Harmonic Analysis |
2nd~31st Harmonics |
|
THD Measurement |
Supported |
|
Isolation Voltage |
>2500VDC |
|
Communication |
RS485 Modbus RTU |
|
Optional Communication |
Ethernet Modbus TCP |
|
Display |
LCD Display |
|
Power Supply |
9~30VDC / 9~55VDC Optional |
|
Mounting |
DIN Rail |
|
Operating Temperature |
-20℃ ~ +70℃ |
Applications
1.Power Distribution Monitoring
Monitor voltage and current parameters across multiple feeders and branch circuits.
2.Industrial Automation
Collect electrical signals from multiple devices and transmit data to PLC and SCADA systems.
3.Power Quality Analysis
Analyze harmonics, frequency variations and electrical disturbances.
4.Smart Building Energy Management
Monitor energy consumption and electrical performance in commercial facilities.
5.Data Centers
Real-time monitoring of power distribution units and critical loads.
6.Renewable Energy Systems
Monitor solar inverters, energy storage systems and distributed generation assets.
Advantages
1.24-channel simultaneous acquisition
2.High-accuracy 24-bit ADC
3.True RMS measurement
4.Harmonic analysis up to 31st order
5.LCD local display
6.RS485 Modbus RTU
7.Modbus TCP Ethernet communication
8.Three-phase phase-sequence detection
9.Industrial isolation protection
10.DIN rail installation
FAQ
1.Can the module measure both voltage and current?
Yes. The module can be configured as 24 voltage channels, 24 current channels, or a combination of 12 voltage and 12 current channels.
2.Does the module support harmonic analysis?
Yes. Harmonic analysis up to the 31st order is supported, including THD measurement.
3.What communication protocols are available?
The module supports Modbus RTU over RS485 and Modbus TCP over Ethernet.
4.Can it monitor three-phase systems?
Yes. The module supports phase voltage, line voltage, phase sequence detection and vector sum calculations.
5.Is OEM/ODM customization available?
Yes. Input ranges, communication interfaces and software functions can be customized for OEM and ODM projects.



















