JX5021A axial vibration monitor is a special instrument developed for the measurement and protection of rotor vibration of various rotating machines such as fans, compressors and steam turbines.
The JX5021A shaft vibration monitor from Guangzhou Jingxin Instruments is designed for continuous monitoring of radial vibration on rotating machinery such as fans, compressors and turbines. It works with the company's JX20/JX70 series eddy‑current displacement sensors and provides intelligent processing, alarm functions, range adjustment and high‑precision measurement.
The manual explains panel functions, wiring, parameter configuration, calibration procedures, alarm point setup, transmission output options and installation guidelines, allowing users to set up and maintain the device safely and accurately. This manual is written in Chinese.
| Measurement accuracy | ±0.1% FS |
|---|---|
| Resolution | 1/6000, 14‑bit ADC |
| Display range | 0 – 999.9 |
| Frequency response | 4 – 1000 Hz (-3 dB) |
| Relay contact capacity | 5 A/220 VAC or 1 A/220 VDC |
| Measurement cycle | 0.2 s |
| Current output | 4 – 20 mA (load ≤ 750 Ω) ±0.1% FS |
| Operating temperature range | 0 – 50 °C |
| Operating humidity | 5 – 90 % (no condensation) |
| Common‑mode rejection ratio | 120 dB |
| Power consumption | 5 VA |
| Supply voltage | AC 220 V ±10 % / –15 % 50 Hz |
| Sensor supply voltage | -24 V DC, short‑circuit protection 25 mA |
The device can accept 0 ~ ‑24 V, 0 ~ 12 V, 1 ~ 5 V, 4 ~ 20 mA and other sensor raw signals, which are filtered and converted internally.