Crystal vibration tester measurement method - Database & Sql Blog Articles

Test - lowercase jpg

Kaixin micro test

Test probe P100-M3

KKST SMD Plug-in Active Passive Crystal Magnet Hot Sale 4.915200MHZ

Open the package, take the test instrument and power cord, take out the test box, and put it in a clean, ventilated, dust-free environment. The operation is as follows:

1 Plug the power cord into the power socket of the instrument (plugged in) and the other end into the mains (220V, 50-60HZ). When the power is turned on, the green indicator on the upper left of the front panel lights up.

2 Connect the test interface of the test box to the front panel of the tester. (Note: the notch of the connector should hear a “click” when inserted.)

3. Open the power switch at the bottom left of the front panel. That is, when the red piece is pressed, the current window displays 10,000000000. At the same time, the upper left gate indicator lights up and flashes. Gate time light: “1S” is on, the function is on the self-calibration indicator, and the upper right is on the MHZ. Explain that the test instrument is all normal, and the display is: 10MHE.

4. The mobile function keys select the frequency measurement, measurement error and frequency setting.

5. Frequency measurement: There are two measurement interfaces on the right side of the front panel, and the input interface can be used to test the active signal. The plug-in interface can be used for the measurement of the crystal, and the accessory is required for the measurement - the crystal test box. (Note: Both interfaces cannot be measured simultaneously.)

6. Measurement of frequency error: The function selection is “error”. Insert the crystal to be tested into the crystal insertion port of the test box, and the display window can display the PPM value of the crystal to be measured. If the crystal under test is negative, the display window will display “ -"symbol. If the measured crystal is positive, the display window is not marked. The unit on the top right of the front panel is indicated on the PPM.

7. Move the key to change the sampling time (ie test speed). The sampling time is: 0

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01S;0

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1S; 1S; 10S. 0

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01S is the fastest and 10S is the slowest. To ensure accurate test accuracy, measure as slowly as possible. Because the faster the sampling speed, the lower the accuracy. Recommended 0

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1S or 1S measurement.

8. Settings: The setting is the frequency comparison standard set for the measured frequency. If the frequency of the crystal being measured is non-inverted 32

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768KHG, the instrument setting frequency will display 32

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768KHG. If the comparison standard (ie the set frequency) is changed, the measured result is not accurate. Therefore, the instrument is factory set in this century 32

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On 768KHG. If the measured crystal frequency has not changed, do not move the setting function key. If the measurement is far from normal, check to see if the set standard is at the standard frequency of the desired measurement.

9. Note: The plug-in interface on the lower right of the front panel cannot be short-circuited by metal, otherwise the instrument will be damaged.

10. The interference key must be pressed at a frequency below 1 MHz. If the interference key is not pressed, the measurement result is not accurate. Do not press the interference button when measuring the MHZ frequency.

11. When the measured frequency is greater than 5V, press the attenuation button.

12. If the instrument crashes due to improper operation (ie, it cannot enter the working state), it can be turned off. After the red button is popped up, restart as described above.