Summary of Contents for AE SVLD1
- Page 1 SVLD1 Valve Leakage Detector（AE） User Manual QingCheng AE Institute (Guangzhou) Co.,Ltd www.acousticemission.cn...
- Page 2 Quick operation manual Once used for the first time, firstly connect the sensor with the detector, press "start" for a long time to enter the main interface of the test, ensure that the sensor and valve are well coupled during the test。 2.Press “Test”...
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Page 3: Table Of Contents
Catalogue CHAPTER ONE: INTRODUCTION ...................... 1 1.1 T ............................2 ECHNICAL PARAMETERS 1.2 M ............................3 HARACTERISTICS 1.3 C ............................. 4 ONFIGURATION LIST 1.4 C ................................5 AUTIONS CHAPTER TWO: BRIEF INTRODUCTION OF HOST MACHINE、KEYBOARD AND DISPLAY ..6 2.1 I ....................... -
Page 4: Chapter One: Introduction
Chapter one: Introduction Firstly, thank for purchasing our Handheld Valve Leakage Detector (AE). Set up reference number of the leakage rate through gathering fixed length AE signals, processing and calculating effective parameters like RMS、ASL、P; at the same time can demarcate the leakage rate of the detecting device in advance, through internal calculation to output parameter- the demarcated curve of leakage rate, thus can output reference values of current leakage rate of the valve while testing。... -
Page 5: Technical Parameters
1.1 Technical parameters Model No SVLD1 Parameter optional 4MHz/2MHz/1MHz/500KHz/200KHz/ Sampling frequency 100KHz/50KHz/20KHz Sampling precision 16bit Response frequency 1kHz-1MHz (±1.5dB) Protection level Host machine：IP64；sensor：IP66 Channel quantity Working temperature -10℃～50℃ Working humidity 20%～90%RH Built-in preamplifier 26dB （Sensor） Six kinds of filters can choose（1KHz-1MHz,... -
Page 6: Main Characteristics
Communication interface： high speed of USB interface which can export the datum, also can processes datum on the master computer. Working way: can offer testing of valve AE parameters and valve AE leakage rate( which are under demarcated condition)；... -
Page 7: Configuration List
1.3 Configuration list Model Name Unit Quantity SVLD1 Machine Plastic box piece AE Sensor LS35 5VDC, with coaxial piece cable Mini-USB cable piece PC software User Manual piece Warranty Card piece Conformity Card piece... -
Page 8: Cautions
1.4 Cautions In order to make sure safe operation, the person who use this instrument ◇ should know related NDT Knowledge firstly; This instrument should be used under permissive condition, especially ◇ cannot be used in strong magnetic field and under strong corrosive environment;... -
Page 9: Chapter Two: Brief Introduction Of Host Machine、Keyboard And Display
Chapter Two: Brief Introduction of Host Machine、Keyboard and Display 2.1 Introduction of the host machine Picture 2-1: SVLD 1 Valve Leakage Detector (AE) host machine Picture 2-2: Sensor Sketch Map... -
Page 10: Keyboard Introduction
2.2 Keyboard introduction The keyboard of the leak detector is shown in picture 2-3。 Picture 2-3：Keyboard Sketch Map Keyboard Introduction: ： ”On and off”， press it for 2 seconds to turn the instrument on, at the same time it performs the self-inspection; once under the testing condition, press it for 2 seconds to turn off the instrument. - Page 11 calibration or view operations。 ：In the test interface, press the key to analyze the current test data FFT, display the FFT spectrogram, and press the key again to exit. Press this key in the menu interface to perform the left selection operation。...
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Page 12: Display Introduction
2.3 Display introduction Picture 2-4：Test interface diagram... -
Page 13: Chapter Three: Menu And Display
Chapter three: Menu and display This chapter will introduce the menu functions and Settings，Press to enter the menu interface, including four options :valve、 calibration、save and set, as shown in picture 3-1. Picture 3-1：Menu display 3.1 Valve Enter the valve option to view the valves that have been set for the current instrument, and to add or duplicate the valve number as needed (change valve number), and to delete specified valve number. -
Page 14: Calibration
3.2 Calibration Enter the valve calibration option to select the specified valve sampling rate and filter, and at the same time, perform the calibration operation (detailed in chapter 4). According to the same valve, up to eight calibration curves can be set (namely, a total of eight sampling rates and filters be matched). -
Page 15: Save
3.3 Save Once enter the save, user can check and see the measured data and alarm data, and check the total memory space and available space. Picture: Saving related operation... -
Page 16: Setting
3.4 Setting The setting options include basic setting 、alarm setting and factory setting, in which the factory setting is used by the manufacturer for debugging, and the operator does not need to change it. Picture 3-5: Setting option 3.4.1 Basic Setting： Enter the basic Settings option and change the following Settings: Date and time, once the data is stored, the current time is also stored for... - Page 17 Picture 3-6：Basic setting related operation...
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Page 18: Alarming Setting
3.4.2 Alarming Setting When entering the alarm setting options, one or two alarm limits can be set; the alarm output can turn off the alarm, or the alarm can be prompted by buzzing or flickering mode; the alarm parameters can be selected as the reference standard for the alarm (RMS/ASL/P) or leakage. -
Page 19: Chapter Four: Brief Operation Introduction
Chapter Four: Brief Operation Introduction Value Setting When setting valve number, input calibration leakage, setting time and date, setting alarm line and so on, value will be needed. Take increasing valve number as an example, press to select the position to be changed, press buttons of to change the related numerical value, press complete the value. -
Page 20: Test
4.2 Test No matter whether the instrument has been calibrated in advance or not, the valve can be tested. The difference is that only the acoustic emission parameters (RMS/ASL/P) are obtained when the instrument is not calibrated, and the corresponding leakage is shown to be 0. After calibration, acoustic emission parameters and corresponding leakage reference values can be displayed simultaneously. -
Page 21: Fft Spectrum Analysis
4.3 FFT Spectrum Analysis After the test is completed, the instrument can perform FFT spectrum analysis of the current test results: under the test interface, press to enter the spectrum analysis interface, the vertical coordinates are generated with the peak of the spectrum as the maximum value, the left and right sides of the abscissa show the frequency boundaries of the two ends respectively, and the middle part below shows the calculated peak frequency position. -
Page 22: Calibration
4.4 Calibration When the operator has calibration conditions, that is to say, the current leakage flow can be quantitatively displayed through the flow meter for the designated valve, and the calibration curve can be generated inside the instrument by measuring the parameters under different flow rates. The reference value of leakage can be displayed according to the calibration curve during the test. - Page 23 2.No is current number of calibrated point→L is the standard leakage value set →Press to modify the valve→Cursor moves to RMS, press to get the parameter date and save automatically→Cursor moves to No, press to turn to the next serial number, repeating above operation, and get more multi-point calibration curves.
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Page 24: Chapter Five: Maintenance
Chapter five: Maintenance 5.1 Application notice Do not expose this instrument to strong acid or alkali chemicals; Please do not use sharp objects to depict the display screen. While replacing the sensor, please pinch the probe cable plug and insert it. ... -
Page 25: Chapter Six: Fault Analysis And Troubleshooting
Chapter Six: Fault analysis and troubleshooting Fault Fault Eliminating phenomenon 1. Check whether the sensor and valve are well coupled. 2. Check whether the sensor is in good contact Excessive with the instrument. deviation of 3. If the contact is good, please replace the sensor measurement and try again. -
Page 26: Chapter Seven: Pc Software
Chapter Seven: PC Software Firstly, use “USB” cable to connect the machine and the computer, the computer can automatically identify the storage function of the machine, user can down load the testing leakage datum and save them to the proper position in the computer.