JSH-40143 14-Channel AC Voltage and Current Acquisition Module
Product No.: JSH-40143-14N2
Current range: 20mA,100mA, 1A, 5AAC, etc. can be customized
Voltage range: 1V, 10V, 50V, 100V, 250V, 400V, 500VAC, etc. can be customized
Accuracy level: 0.2% FS, linear measurement range of one thousandth
Frequency measurement: 40Hz-70Hz
14-Channel 0-20mA 0-10V AC Voltage and Current Combination Acquisition Module RS485 Ethernet Modbus Power Monitoring Module
Product Overview
The JSH-40143 measures AC voltage and current across 14 input channels and transfers the readings to a PLC, industrial computer or supervisory system. Available configurations include voltage-only, current-only and combined voltage/current inputs.
The module uses independent ADCs for simultaneous sampling and supports true RMS measurement. Input channels are isolated from one another, with additional isolation between the measurement inputs, power supply and communication circuits.
Typical uses include burn-in equipment, production test benches, power distribution cabinets and equipment-room monitoring.
Model
Input Configuration
Communication
JSH-40141-14N2/#V
14 AC voltage channels
RS485
JSH-40142-14N2/#A
14 AC current channels
RS485
JSH-40143-14N2/#V*#A
14 combined AC voltage/current channels
RS485
JSH-40141-34N2/#V
14 AC voltage channels
RS485 + Ethernet
JSH-40142-34N2/#A
14 AC current channels
RS485 + Ethernet
JSH-40143-34N2/#V*#A
14 combined AC voltage/current channels
RS485 + Ethernet
The models listed above use a 9–30 V DC supply. Specify the required input ranges and channel allocation when ordering. Other power supply versions are available with different model suffixes.
- 14 AC measurement channels with configurable voltage and current inputs.
- Independent ADCs for simultaneous sampling.
- Selectable voltage/current update intervals: 20, 40, 60, 80, 100, 400 and 1000 ms.
- True RMS measurement with a stated accuracy class of 0.2%.
- Measurement resolution of 1/10,000 of the selected range.
- Channel-to-channel isolation and an isolation withstand specification exceeding 2500 V DC.
- RS485 Modbus RTU communication; Ethernet models support configurable Modbus TCP operation.
- Seven frequency readings derived from input channels 1–7.
- 35 mm DIN rail or screw mounting.
Technical Specification
1.2 times the range is sustainable and measurable.
Instantaneous (<50mS) current 5 times,voltage 1.5 times the range without damage
20mS, 40mS, 60mS, 80mS, 100mS, 400ms (default), 1000ms can be set
Note: When the input AC signal frequency is not 50Hz, it is recommended to adjust the sampling speed to 400ms.
35mm guide rail or screw installation.
Appearance: 145X90X40 mm,screw installation: 135X70mm,
installation aperture ф 5m.
Application
Parameter
Specification
Accuracy level
0.2% FS, linear measurement range of one thousandth
Current range
20mA, 100mA, 1A, 5AAC, etc. can be customized
Voltage range
1V, 10V, 50V, 100V, 250V, 400V, 500VAC, etc. can be customized
Frequency measurement
40Hz-70Hz
Input impedance
voltage channel>2 k Ω/V; current channel 0 Ω
Overload capacity
Working temperature
Working temperature
Frequency response range
30Hz-1000Hz
Data collection update time
Isolation withstand voltage
>2500V DC
Auxiliary power supply
+9V~30V or+9V~55V
Rated power consumption
<0.8W (typical 24V power supply 27mA)
Output interface
RS485 (standard Modbus RTU communication protocol)
Data output
14 AC voltage or current signals,1 frequency signal
Communication baud rates
4800, 9600, 19200, 38400, 57600, 115200 bps; (Can be set up through software or hardware)
Data format
no parity/odd parity/even parity, 8 data bits, 1 stop bit/2 stop bits (1 or 0) optional
Lightning surge
greater than 2KV
Installation method
1.Burn-In and Aging Test Equipment
Collect AC voltage and current readings from multiple test circuits for centralized display and test supervision.
2.Production Test Benches
Integrate multiple AC measurements into PLC-controlled inspection equipment using Modbus communication.
3.Power Distribution Cabinets
Monitor selected AC circuits through a configurable combination of voltage and current inputs.
4.Equipment-Room Monitoring
Transfer electrical measurements to a supervisory system through RS485 or an Ethernet-equipped model.
1.Direct Manufacturer Pricing:
Competitive pricing backed by direct R&D and manufacturing capabilities
2.Industrial-Grade Reliability:
Robust surge protection, multi-level channel isolation, and wide operating temperature range (-40 to +70).
3.Seamless System Integration:
Open standard protocols (Modbus-RTU / TCP) ensuring smooth compatibility with mainstream industrial PLCs and SCADA software.
4.Flexible Customization (OEM/ODM):
Tailored hardware ranges, firmware configurations, and protocol support to meet your exact project specifications.
FAQ
Q1: Does this module support internal data logging or storage?
A: No, this product is a pure real-time data acquisition and transmission module; it does not feature onboard data logging or local memory storage capabilities. All data is transmitted instantly to your master controller.
Q2: What communication protocols and interfaces are supported?
A: It supports standard RS485 (Modbus-RTU) or Ethernet (Modbus-TCP) interfaces depending on the selected model variant.
Q3: Can the voltage and current ranges be customized?
A: Yes! Standard current ranges include 20mA, 100mA, 1A, and 5A AC, while voltage options range from 1V to 500V AC, with custom ranges available upon request.
Q4: How fast is the data sampling?
A: It features 14 independent simultaneous AD sampling channels with 7 adjustable speeds, completing all 14 channels in as fast as 20ms.
