Shaft vibration transmitter

NegotiableUpdate on 01/14

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The basic working system of eddy current sensors consists of the measured object, probe, extension cable, and preamplifier. The preamplifier generates high-frequency oscillating current that flows into the probe coil through an extension cable. The coil generates an axial magnetic field, and when the measured metal body approaches this magnetic field, eddy currents are generated on the surface of the measured metal (the strength of the eddy currents varies with the distance between the probe and the surface of the measured body), causing a change in the Q value of the coil. When the distance is small, the eddy current effect is strong and the Q value of the coil is small; When the distance is large, the eddy current effect is weak and the Q value of the coil is high. In practical applications, the change in coil Q value is detected and amplified by a preamplifier to convert it into a change in voltage. Implement the machine

Product Details

The two-wire axis displacement transmitter linearizes and normalizes the vibration signal sampled by the sensor, and then outputs it directly4-20mASignal. Two wire axis displacement transmitter is directly connected toDCSThePLCThe interface provides a simple and low-cost way to monitor the shaft displacement of rotating machinery rotors. Real time monitoring of shaft displacement for main and auxiliary equipment such as steam turbines, compressors, fans, and pump groups can truly protect such equipment. It measures accurately, stably and reliably, and has strong anti-interference performance.

2、 Appearance diagram

Appearance diagram of the complete set of two-wire axis displacement transmitter

3、 Performance indicators

1Power supply:7.5~36Vdc.

2, lose Enter: Eddy current sensor probe.

3Measurement range:-1～+1mm.

Output: Two wire system4～20mA, maximum load resistance 1000Oh.

4Output ripple: ≤20mV.

5, frequency Sound:DC～2000Hz(-3dB).

6Temperature Float: ≤0.05%/℃。

7External dimensions:90mm(W)×35mm(L)×70mm(H)

8Installation size: rail installation, can be easily installed on standard35mmOn the guide rail.

9Wiring method: AdoptingSpringLocThe terminal has an automatic fastening function and can be wired without the need for installation tools. As it does not require bolt fixation, it will not loosen.

10Working environment temperature: -20℃～70℃。

4、 Probe installation requirements

The range to be measured refers to the linear range of the sensor, and the probe specification (Φ) is selected5ｍｍ、Φ8ｍｍ、）,Determine the probe type based on the space and structure of the on-site mechanical installation（For example: formal, reverse, non threaded）Select the probe cable length based on the size（1mThe0.5m）.

2.Determine the total length of the system cable by measuring the distance from the on-site measurement point to the installation point of the preamplifier(5mThe9m)Choose the length of the probe cable again（1mThe0.5m）Length of supporting extension cable（4ｍ、4.5ｍ、8ｍ、8.5ｍ）。

3.Total length of system cables（5ｍ、9m) And probe specifications (Φ)5ｍｍ、Φ8Mm) Determine the type of preamplifier.