YD9800 Eddy current transducer for radial shaft displacement replace  ProvibTech  / 3300 XL NSv Proximity Transducer System

 

YD9800 Eddy Current Displacement Proximity Transducer can measure the relative position of the measured object (must be a metal conductor) and the probe end. Because of its features of non contact measurement,  long-term high working reliability, high sensitivity, strong anti-interference ability, fast response speed and no oil-water and other medium influence, it is often used for long-term real-time monitoring the shaft displacement, shaft vibration, shaft speed and other parameters of the large rotating machinery, then we can analyze the work condition and failure reason of the equipment, in order to protect the equipment and do predicting repair effectively. It can measure displacement, amplitude, speed, size, thickness, surface unevenness. Analysis on the theory of rotor dynamics and bearing science, the running state of large rotary machines mainly depends on its core -- rotating shaft, and the eddy current displacement sensor can measure the condition of the shaft directly, the measurement result is reliable and credible.

 

 

Brief Introduction

 

The leading science and technology of YD9800 series eddy current displacement sensor:

1. “The best parameter matching of coil temperature stability” technology ensures a good stability of probe temperature;

2. Using the new PPS engineering plastics through" two injection" technology to ensure the good sealing of the probe, dimensional stability and exchangeability, working temperature range expanded to -50°C~+175°C;

3. " Deformation connection" technology, higher strength and reliability of probe;

4. “Deep negative feedback stability resonant loop" technology, make the preamplifier stability reach (0.05%/°C, 0.02%/year);

5. According to the American military standard design and produce, preamplifier can work continuously in the environment of -50~+105°C;

6. Preamplifier circuit adopts the fault-tolerant design to ensure that any wiring errors will not make  damage;

7. Preamplifier uses the latest electronic technology; power consumption is lower than 12mA;

8. The shell of the preamplifier adopts die casting technology, high frequency socket concave, wiring terminal mosaic protection and engineering plastics insulated structure,  in order to make the preamplifier more solid and more convenient to use and install.

9. Advanced phase frequency characteristics of the testing and control method of the eddy current displacement sensor makes JX20 series products are in the international leading level in the dynamic characteristics.

 

Application Area

 

It is widely used for online monitoring and fault diagnosis of displacement, vibration, rotational speed, the oil film thickness of the steam turbine, hydraulic turbine, generators, blowers, compressors,  gear boxes and other equipments in the industries of electric power, petrochemical, metallurgical and so on.

 

 

Typical application diagram

 

 

 

Technical Index

 

Diameter of the probe head(mm)	Linear range(mm)	Nonlinear error	The minimum area to be measured(mm)
Φ5	1 (Extended to 2)	≤±1%	Φ15
Φ8	2 (Extended to 4)	≤±1%	Φ25
Φ11	4 (Extended to 8)	≤±1%	Φ35
Φ18	8 (Extended to 12)	≤±1.5%	Φ45
Φ25	12(Extended to 22)	≤±1.5%	Φ50
Φ50	25 (Extended to 30)	≤±2%	Φ100

 

 

Probe: working temperature is -50~ +175°C ; temperature drift ≤0.05%/°C

Preamplifier: working temperature is -50~ +120°C ; temperature drift ≤0.05%/°C

Interchangeability: error ≤5%

Frequency response: 0 ~ 10 kHz; amplitude frequency characteristics: when 1 kHz, it is -1%; when 10kHz, it is -5%; phase frequency characteristics: when 1 kHz,  it is -1 degree; when 10 kHz, it is -100 degree.

Output characteristics:

1. a negative voltage output,

Power supply: -18Vdc~ -24Vdc

Power consumption ≤ 12mA (not including the output current)

2.4 ~ 20mA current output

Power supply: +18Vdc~ +30Vdc

Power consumption ≤ 12mA ( not including the output current )

 

 

Installation options

   

Standard installation

 

 

 

 

Reverse installation

 

( a ) usually use a sleeve fix it on the machine

 

 

 

 

 

(b) φ50 commonly used methods for probe

 

 

 

The cable side out

 

Select it when the installation of axial space is small, usually fix it with the clamping block 

 

 

 

Flange mounting

 

Select it when the installation of axial space is small, fix it with bolts

 

 

 

 

 Usually choose the standard installation type probes unless the use of the machine or external mounting bracket installation space probe limit.

 

Parameter Selection Table

 

 

 

 

 

Similar Products

 

 

 

Company Information

                    ⇓

 

  

 

 

Packaging & Shipping

Packaging:

Packaging with plastic box saperated packing;

1 piece,2 pieces,5 pieces,10pieces per master caton or any ways you want;

10 pieces standard size sensors,gross weight is about 3kg.

Shipping:

 

Certifications

 

 

FAQ

1.What kind of sensor do we do?

We offer a very wide variety of vibration,displacement ,speed ,accelerometer sensors or transmitter,etc.

 

2.How to get your offer?

Please send us your technical parameters,specification or product model ,quantity you want,we will send you our best quotation.

 

3.If i did not use sensor before,how shall i do?

It does not matter,please tell us some key  teachnical parameters and the order quantity,we'll choose you most suitable one  and give our best service.

 

4.How to place the order?

If you accept the price,we would send you the profoma invice to arrange the payment.

 

5.How long is the production time after placing the order?

It would take 7-10 days ,anyway,when you place the order,we would comfirm the delivery time to you.

 

6.How do you send the goods?

We normally send the goods by DHL,FEDEX,UPS,TNT through our agent.And it will take 3-5 days for shipping.

 

Thanks for your visiting ~ ~ ~

     If you have any questions,welcome contact us now!