24-Channel Differential 0-100mA DC Current Data Acquisition Module
Product No.: ZH-42242
True differential measurement
Current Range:20mA-10A DC(can be customized)
RS485 Modbus RTU serial communication interface
DIN-rail mountable, space-saving design
24-Channel Differential DC Current Data Acquisition Module Modbus RTU RS485 Current Transmitter
Product Overview
This product is a real-time data acquisition module for measuring 24 channels of DC voltage and current. It adopts high-precision 24 bit AD differential mode for acquisition and measurement, with 12 channels of DC voltage and 12 channels of DC current input. The signal measurement uses a dedicated measurement chip, which can accurately measure various DC signals with good anti-interference performance, high accuracy, and good stability; Adopting standard RS-485 bus interface and MODBUS-RTU protocol. Widely used in street lamp monitoring, production automation testing, LED lamp aging detection, etc.
Model Selection
ZH-42242-14F2:24 channel DC current acquisition module(9V-30V Power supply,RS485 interface)
ZH-42242-15F2:24 channel DC current acquisition module(9V-55V power supply,RS485 interface)
Key Features
1.24 channels of synchronous sampling are mutually independent AD, completing data acquisition and update for all channels in 0.1 seconds;
2. High precision, using 24 bit AD sampling;
3. Good stability, measurement accuracy is not affected by environmental temperature;
4. Current differential input, voltage common negative input, input signals are not isolated from each other
Technical Specification
Application
Parameter
Specification
Accuracy level
0.5% FS
Range
Current: 0-5A/0-10A DC; Voltage: 0-500V DC
Working temperature
-20 ℃ to+60 ℃
Data update time
100mS
Isolation withstand voltage
>2500V DC (input voltage and current signals are not isolated from each other)
Auxiliary power supply
24V DC (15V~30V)
Rated power consumption
2W
Output interface
RS-485
Data output
24 channels of DC voltage and current data
Communication baud rates
4800, 9600, 19200, 28800 bps
Data format
no checksum, 8 data bits, 1 stop bit
Communication protocol
MODBUS-RTU protocol
1.Testing Equipment and Aging Test Equipment
2.Production Automation Testing
3.Online DC Current Monitoring Equipment
4.Industrial Automation Control Environments
Why You Choose Us
1.Reliable Isolation & Protection:
Complete mutual isolation between input channels, communication interfaces, and power supplies for exceptional anti-interference performance.
2.Flexible Configuration Options:
Supports hardware DIP switches as well as software setting modes for addresses and baud rates, plus custom active data upload modes.
3.Direct Manufacturer Standards: High-precision engineering,specializing in dependable industrial signal acquisition solutions.
FAQ
Q1: Does this module feature internal data storage or logging capabilities?
A: No, this product functions strictly as a real-time signal acquisition and measurement module without built-in storage or historical logging capabilities.
Q2: What are the supported current measurement ranges?
A: Supported ranges include 20mA, 100mA, 200mA, 0.5A, 1A, 2A, 3A, 5A, and 10ADC.
Q3: What communication interface and protocol are used?
A: It uses an RS485 interface supporting the standard Modbus-RTU communication protocol.
