1. Overview
ZJS-2 vibration and swing monitoring device is a dual-channel intelligent digital instrument with single-chip microcomputer as the core processor. The instrument is connected with the eddy current displacement sensor to monitor the radial displacement in the X and Y directions of the main shaft of the hydro-generator unit online; it can be connected with the low-frequency vibration sensor to monitor the vibration value in the vertical and horizontal directions online. The instrument has dual-channel digital display, analog quantity, switch quantity and communication output.
2. Features
The intelligent monitoring device with single-chip microcomputer as the core processor has strong applicability.
Two-channel two-level alarm value can be set independently.
Press the button to set the vibration/swing monitoring method.
It can switch to display the gap voltage between the eddy current sensor and the spindle to determine the accuracy of the installation gap.
With power-off protection, automatic memory function.
Perfect system self-check function.
The working power supply (+24V) of the transmitter can be provided.
3. Technical performance
Display mode: dual LED highlight digital tube display is clear and intuitive.
Input signal: when used for vibration monitoring: it can receive signals from two channels (horizontal/vertical) vibration sensors, when used for swing monitoring: it can receive signals from two channels (X/Y) of eddy current sensors.
Measuring range: 0～1.00mm (swing is the symmetrical displacement in X/Y direction)
Measurement accuracy: 0.01mm
Alarm output: Contact form: normally open contact.
Contact capacity: 5A/AC220V, 2A/DC30V.
Alarm setting: The four-level alarm value can be arbitrarily set between the upper and lower limits of the range.
Working power supply: switching power supply AC85~265V, DC110~340V.
Power consumption: 10W.
The instrument provides a transmitter: DC24V power supply, the transmitter does not need an external power supply.
Environmental conditions: Temperature: Working temperature: 0℃~40℃.
Storage temperature: -25℃~+70℃.
Relative humidity: ≤85%RH.
4. Terminals
5. Installation size
The appearance of the instrument and the size of the opening are shown in the following figure:
