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JXK-21U High Voltage Transmitter for Automation

A versatile high-voltage transmitter that accurately measures 0–1500V AC/DC and converts it to standardized outputs, simplifying hybrid industrial automation integration.
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One device converts both AC and DC voltage signals.

The JXK-21U high voltage transmitter is engineered to measure both alternating current (AC) and direct current (DC) voltage signals up to 1500V. In modern industrial automation, power systems frequently incorporate mixed electrical architectures, such as AC distribution networks operating alongside DC bus systems, battery storage arrays, or renewable energy inverters. Traditionally, monitoring these varied sources required deploying distinct sensor models for AC and DC circuits, which complicated procurement and increased panel footprint.

JXK-21U AC/DC 0-1500V high voltage measurement. One device converts both AC and DC voltage signals for industrial monitoring.

Stable conversion for fast-changing voltage signals.

Industrial power control systems, particularly those utilizing variable frequency drives (VFDs), switching power supplies, and advanced motor controllers, generate voltage signals that change much more rapidly than standard 50Hz or 60Hz mains frequencies. To accurately monitor these dynamic environments, the JXK-21U provides an extended wide-band frequency response ranging from DC up to 20kHz.

JXK-21U DC-20KHz wide frequency response. Stable conversion for fast-changing voltage signals with less delay.

Converts large voltage signals to process output or RS485.

Integrating high-voltage circuits directly with control electronics poses significant safety risks and technical challenges. The JXK-21U acts as a critical isolation barrier, safely converting high AC or DC voltages into standardized process output signals or RS485 digital communication protocols. This allows the receiving PLC, panel meter, or centralized monitoring platform to process standard data without being exposed to the primary high-voltage circuit.

JXK-21U unified voltage acquisition for complex industrial circuits. One device converts both AC and DC voltage signals.

Working Principle Diagram

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Technical Specifications

Input Impedance:≥200 kΩ

Supported Input Voltage Ranges:AC/DC 0–75 V/100 V/220 V/380 V/500 V/1000 V; range can be customized

Compatible Signal Frequencies:50/60 Hz power frequency

Maximum Output Load Resistance (4–20 mA Current Output):≤500 Ω

Minimum Output Load Resistance (0–5 V / 0–10 V):≥10 kΩ

Step Response Time (Output Reaches 90% Steady State):<200 ms

Temperature Drift Coefficient (-20°C to +55°C):≤500 ppm/°C FS

Independent Linearity Error:±0.1% FS

Overall Accuracy @ 25°C Ambient Temperature:±1.0% FS (Class 1)

Field Calibration Method:Factory-calibrated, no external adjustable potentiometer

Standard Output Signals:1 input, 1 output; 4–20 mA/0–5 V/0–10 V

Dimension Chart

L*W*H : 99mm x 65mm x 24mm

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Wiring Diagram

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Phone: +86-19715617532
Add: Building 14, University Science and Technology Park, Fenghuangshan Economic Development Zone, Xiangshan District, Huaibei City, Anhui Province

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