The ZHJ-402 vibration temperature sensor is composed of a vibration velocity sensor and a temperature sensor, with two vibration sensors fixed horizontally and vertically, and one temperature sensor implemented using a platinum resistor.
A vibration velocity sensor utilizes the principle of magneto electric induction to convert vibration signals into electrical signals. It mainly consists of a magnetic circuit system, coil components, spring damping, and other parts. Two coil components are rigidly fixed in the sensor housing, and magnetic steel is suspended from the housing by springs. When the sensor operates within the working frequency range, the coil and magnetic steel produce relative motion, and the coil cuts the magnetic field lines, generating induced electromotive force (induced voltage), which is proportional to the vibration speed of the casing.
The temperature measurement of a temperature sensor utilizes the linear variation of platinum resistance with temperature to measure temperature.

Technical parameters:
1. Vibration sensor
Sensitivity: 30mV/mm/s
Acceleration: 8g
Measurement range: 2mm
Frequency response: 10~300Hz
2. Temperature sensor: PT100
Measurement range: 0-400 ℃
3. Environmental temperature: -10~100 ℃
4. Measurement methods: vertical, horizontal, axial
5. Fixed screw holes: evenly distributed on the circumference of Φ 85 and fixed with 4 M8 screws
6. Dimensions: Φ 70mm × 180mm
7. Insertion depth: 83mm

Overall dimensions:

Ordering Guide:
ZHJ-402－A□□
A: Custom cable length (increasing every 1m), for example: 05=5m

Example: The order code for a vibration/temperature sensor with a cable length of 5 meters is ZHJ-402-05