In order to ensure the stable and reliable operation of the built-in Windows operating system of the industrial computer of the relay protection tester, please do not delete or modify the files on the hard disk and the icons on the desktop at will, and do not operate, change, add, delete or use the built-in Windows system at will. , so as not to cause damage to the operating system. When using the USB disk to copy data, please make sure that the U disk is clean and virus-free, and please do not use the U disk to install other software programs in this system.
When connecting an external keyboard or mouse, please do not insert the wrong port, otherwise the Windows operating system will not start normally.
Do not directly turn off the power in the output state, so as to avoid the protection malfunction due to the output error when turning off.
The binary input is compatible with empty contacts and potential (0-250VDC). When using live contacts, the high-end (positive pole) of the contact potential should be connected to the common terminal COM.
When using the relay protection tester, do not block or close the ventilation openings of the body, generally place the instrument upright or open the supporting feet and place it slightly inclined.
It is forbidden to introduce external AC and DC power into the voltage and current output jacks of the tester. Otherwise, the protection relay tester will be damaged.
If the on-site interference is strong or the safety requirements are high, before the test, please ground the grounding end of the power cable (3-core) reliably or ground the grounding hole of the device.
If there are problems such as interface data errors or the device cannot be connected during use, it can be solved as follows: press the reset button down to reset the DSP; or exit the running program and return to the main menu and re-run the program, all data on the interface will be reset. Restore to default values.