Ten precautions to note during testing with the microcomputer relay protection tester:
1. The microcomputer relay protection tester is equipped with an industrial computer and Windows operating system. Please do not frequently switch the host power on and off.
2. The microcomputer relay protection tester has USB ports on the panel or back panel, allowing hot-plugging of USB devices (such as USB drives), but ensure that data transfer is completed before plugging or unplugging.
3. To ensure stable and reliable operation of the built-in Windows operating system, please do not arbitrarily delete or modify files on the hard drive or icons on the desktop, and do not arbitrarily operate, change, add, delete, or use the built-in Windows system to avoid damaging the operating system. When using a USB drive to copy data, ensure the USB drive is clean and virus-free, and do not use the USB drive to install other software programs on this system.
4. When connecting an external keyboard or mouse, do not plug them into the wrong ports, otherwise the Windows operating system may not start normally.
5. Do not turn off the power directly while in the output state, to avoid incorrect output that may cause protection misoperation.
6. The input channels are compatible with dry contacts and potentials (0-250VDC). When using live contacts, the high potential (positive) of the contact should be connected to the common terminal COM.
7. When using this instrument, do not block or seal the ventilation openings on the chassis. Generally, place the instrument upright or open the support feet to tilt it slightly.
8. It is forbidden to introduce external AC or DC power into the voltage and current output jacks of the tester. Otherwise, the tester will be damaged.
9. If the on-site interference is strong or safety requirements are high, before testing, reliably ground the ground terminal of the power cord (3-core) or the grounding hole of the device.
10. If interface data errors or device connection failures occur during use, you can solve them by pressing the reset button downward to reset the DSP, or exit the running program to return to the main menu and restart the program, then all interface data will be restored to default values.
