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Quick Details

  • Place of Origin: Shanghai, China (Mainland)
  • Brand Name: Ce Zhen
  • Model Number: YD420
  • Power: Electronic
  • Usage: Vibration Testing Machine
  • Dimensions: 85*165*275mm
  • Linear Range: 0-2000um or customized according to client's requirement
  • Signal Input: YD9800/YDYT9800 eddy current displacement or Bently 3300XL
  • Power Supply: 220VAC± 30%
  • Power Consumption: ≤20W
  • Hole Size: 73*152mm
  • Frenquency Response: 0-5000Hz
  • Output Current: 4-20mA or RS485
  • Application: Monitoring eddy current displacement sensor
  • Certificate: ISO9001:2008

Packaging & Delivery

Packaging Details YD420 Dual-channel axial vibration monitor package way:
1.1piece monitor packing inner one plastic box,
2.1 box monitor one master carton
Delivery Time About 7 working days after paying payment

YD420 Dual-channel widescreen axial vibration monitoring

1. Brief Introduction

YD420 Dual-channel axial vibration monitor with DSP system installed,is precision 

intelligent measurement and control instrument, widely used in electric power,petroleum, chemical and other departments.Through the magnetic-electric sensor the instrument can continuously monitor and  measure the peak-peak value for the vibration of the steam turbine, wind  turbine and other rotating machine.With alarm and shutdown control signal output, equipped with current

output and RS485 interface, it can connect with computers and other devices and synchronize 

with PLC equipments.

The Monitor uses an 80 × 160 (mm) common chassis,LED digital display,PVC color mask and light touch keys,it has a European standard resolution of 128*64 on the display with beautiful appearance, novel style,reasonable structure, simple installation, stable performance and reliable quality.


2. Main Functions 


1.1 it has two channels, each channel can measure and display the vibration amplitude.

1.2 It has 4 dual channel switching control the signals. Using a miniature high-power relay,  the maximum switch voltage is 440VAC / 125VDC, the maximum switch current is 16A, the maximum switch power is 4000VA, mechanical pressure resistance is 10million times. Through the lower limit alarm value setting, the upper limit alarm value setting, the alarm delay setting and the lower limit danger value setting, the upper limit danger value setting, the danger delay setting, relevant action, when the vibration amplitude reaches a preset value, the relay switch enter into working state.

1.3 Multifunction digital keyboard. In the main display interface, press "1" enter 1 channel information display; press "2" enter 2 channel information display; press "3" enter the dual channel display simultaneously; press "M" enter the menu item; press "↑↓" direction keys to change the different display information in the channels; press "." to return.

1.4 Dual 4 ~ 20mA isolation high precision current transmission output, with high precision voltage reference inside, 18 digits precision voltage drive chip, high precision and low drift operational 

amplifier, guarantee the accuracy of the output reach 0.01%. By the main range lower limit setting and main range upper limit setting of the menu item, divide it into the corresponding current interval of 4 ~ 20mA accurately, so that improves the accuracy of output signal. Calibrate the lower limit and upper limit of current loop by current meter, then demarcate the linearity of 4 ~ 20mA more accurate.

1.5 The device has main range display, percentage display, bar graph display, transmission current display. It is more convenient, fast and accurate for customers to do calibration in the site application. 


3. Technical Parameters


 3.1.1 Signal Input: YD9800(YDYT9800) eddy current displacement sensor

                                 or BN3300XL

3.1.2 Measurement range:0~200um

                                   Range can be determined according to users’needs 

3.1.3 Accuracy: Linearity deviation ≤ ± 1% (full scale value)

3.1.4 Display performance: 128*64 Dot LCD display

3.1.5 Frequency Response:0~5000Hz

3.1.6Current output: 4 ~ 20mA  or RS485

3.17 Set way:Set the touch

3.1.8 Alarm Contact Capacity:DC28V  3A  or  AC220V 2A

3.1.9 Working Environment: Temperature: -20~+70℃

                                                 Relative humidity: ≤ 85%

3.1.10 Power Supply: AC 220VAC ± 30% 50Hz/60Hz 

                                      Power comsumption: ≤ 20W

3.1.11 Dimensions: 85 × 165 × 275mm 

3.1.12 Hole Size: 73 × 152 

4.Parameter selection table



A Measuring range

B Recording output

C Alarm status

D The input sensor sensitivity







02:485 communication protocol

00:Alarm automatic reset,  dangerous-locking



03:Special customized



Key Instruction

4.1 “” key: this is called "shift" key, press the button each time, the selected LED will move to left for one digit, selected digital tube flashes, cyclic shift.

4.2 "" key: this is called "add" button, number on the selected digital tube will increased by 1 for every press.

4.3"E" key: this is called "Confirm" button, press the key after finishing parameter settings Instrument enter into normal measurement state once storage parameters.

4.4 "S" key: this is called "Settings" button, press the button, and enter to the parameter setting state, setting alarm 1 value and alarm 2 value of channel 1 and channel 2 successively. Press the "S" button, the upper digital tube will circulating display “COL”,“COH”,“C1L”,“C1H”,“PPP” in turn, respectively indicate channel 1 alarm 1 value, "channel 1 alarm 2 value, channel 2 alarm 1 value, channel 2 alarm 2 value.


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Company Information


Packaging & Shipping


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.







1.What kind of sensor do we do?

We do all major sensor type:

a.Vibration sensor,two-wire integrated vibration transmitter.

b.Two/three-wire integrated or split-type eddy current displacement  sensor.

c.Rotation speed sensor:passive magnetic or hall speed sensor.

d.(Vibration,speed,displacement )transmitter.

e.Piezoelectric (speed,acceleration) sensor.

f.Meter series:kinds of monitor.

g.Portable vibration meter series

h.Fault monitoring and diagnose system.

i.Sensor calibration equipment series.


2.How to get your offer?

Please send us your specification and 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.


7.Why choose us?

-Gald manufacture and suppier have cooperated with alibaba over 5 years.

-Accept OEM .

-Good quality.

-Accept small order as lowe as 1 piece.

Thanks for your visiting ~ ~ ~

     If you have any questions,welcome contact us now!

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