Model selection
model
Main functional features
EMT490A2
Two channel vibration acquisition and fault analysis system
EMT490A4
Four channel vibration acquisition and fault analysis system
EMT490C2
Two channel vibration acquisition and fault analysis system + site dynamic balance system
EMT490C4
Four channel vibration acquisition and fault analysis system + site dynamic balance system
Characteristic description
EMT490 series machine fault analyzer uses a unique embedded PDA (Pocket PC) structure, is a new generation of portable FFT data acquisition and signal analysis instrument.
The instrument has the advantages of small volume, light weight, compact structure, both to meet the requirements of portable data acquisition, and achieve a strong field data collection and machine fault analysis function, can also through the optional software extended field single, double-sided dynamic balance function; path recognition system with, the self identification number the machine to be measured for inspection location; support the networked data management and analysis, through the summary for EMT800 equipment condition monitoring and fault analysis of data on the network platform, rapid, comprehensive master the running state of the machine and its development trend. Analysis machine fault diagnosis, guarantee the stable operation of the machine safety.
The instrument is applicable to all kinds of machines in the industrial field, such as turbines, compressors, motors, fans, pumps and other offline state inspection and fault analysis.
System function
Vibration acquisition and fault analysis function.
Various parameters of vibration velocity, acceleration and displacement can be collected;
Can measure the 1/2/3/4 channel spectrum, time domain waveform;
Can monitor the bar chart of each channel;
Axis orbit analysis;
Gross value trend analysis can be performed in order to observe the gross fluctuation curve of equipment under variable conditions;
Acquisition conditions can be arbitrarily set, such as the number of sampling points, analysis of frequency, etc.;
Perfect database management: including machine management, point management, data management, report management;
Strong printing function: can print a variety of spectrum, data reports, trends;
Through the vibration analysis function, can diagnose all kinds of low frequency fault of the rotor, bearing, gear box type high frequency fault, and the equipment data management.
The scene of single and double dynamic balance function
Wizard type operation, only 3 - 5 steps to complete the scene dynamic balance;
You can continue to move the balance from the saved not complete dynamic balance process;
Using the original installation conditions of the site, open down 3 - 2 times;
Provide trial weight balancing method and influence coefficient method;
- vector decomposition, vector synthesis function for the counterweight installation;
A balance can be made to reduce the amount of unbalance by more than 90%;
Balanced report generation and output;
The function the machine the original installation conditions, no need to disassemble, really solve the rotating machinery field balancing problem, save a lot of time, manpower and money for the enterprise.
Technical indicators
Hardware：
- the master machine: embedded PDA (Pocket PC) structure, 3.5 "TFT LCD display, Chinese Win-CE interface, touch screen operation.
Channel number: vibration 2/4 channel optional + speed (external trigger) channel;
Storage: expandable FLASH card allows unlimited storage capacity
Communication: USB
Path identification: DALLAS electronic identification system, automatic identification of the number of machines being tested
Sampling: 2/4 channel simultaneous sample and hold
Signal processing: the absolute independence of each channel signal processing, to ensure the independence of the channel signal, to eliminate inter channel interference
Sampling points: 256, 512, 1024, 2048, 4096, 8192
Line number: 100, 200, 400, 800, 1600, 3200
Frequency range: DC ~ 40KHz
Low pass filtering: do not add, 600Hz, 1KHz, 2KHz, 3 KHz, 4 KHz, 5 KHz, 6 KHz,
7 KHz, 8 KHz, 9 KHz, 10 KHz, 11 KHz, 12 KHz, 13 KHz,
The integral processing: does not add the integral, the first integral, the two time integral
High pass filter: 0.5Hz, 10Hz, 400Hz, 1KHz
Envelope demodulation: on/off
Anti aliasing filter: 100Hz ~ 20KHz continuous variable
Dynamic range: 14 bit A/D, ~ 84dB
- window function: Hanning window, Hamming window, triangular window, rectangular window, optional sampling window
Sensor: the vibration sensor is built in the charge amplifier, and the ring shear type acceleration sensor;
Speed sensor using laser photoelectric sensor
- power supply: built in lithium battery for 3 hours with 8 hours of continuous use; 5 external 9V DC power supply and charging.
Software：
Vibration acquisition and fault analysis software EMT490-VAS
Field single and double side dynamic balancing software EMT490-DBS (optional)
Equipment condition monitoring and fault analysis network data platform EMT800 (optional)