Correct operating procedures for high voltage differential probes

High-voltage differential probes are widely used in the research and development, debugging or maintenance of switching power supplies, frequency converters, electronic ballasts, variable frequency appliances and other electrical power devices. High voltage differential probes are widely used in various situations. It provides excellent general-purpose differential signal measurements for today's high-speed power measurements, vehicle bus measurements, and digital system designs. Engineers purchasing high-voltage differential probes should know how to properly operate high-voltage differential probes.

Steps:

1. The amplitude of the voltage to be measured should be estimated before testing. If the voltage range is exceeded, the probe and product may be damaged.

2. The input and output lines are good probes; the probes are connected to oscilloscopes or other measuring instruments.

3. When the power adapter is connected to the voltage probe, the green power indicator lights up. When the measured voltage exceeds the range, the overload indicator light lights up and alarms.

4. Set the attenuation ratio of the oscilloscope or other measuring instrument to 10:1, and set the input impedance of the oscilloscope to 50Ω (if the probe output port is connected to a 50Ω through load, set the input impedance of the oscilloscope to 1mΩ); according to the measured voltage Adjust the oscilloscope's sensitivity.

5. Connect the probe fixture as required, connect the object to be measured, and start measurement. During the test, the probe body should be kept as far away from the high-voltage pulse circuit as possible to reduce interference to the probe.

6. After the test is completed, first turn off the power of the circuit under test, then turn off the power of the probe, disconnect the two input terminals from the measured point, and pull out the BNC plug from the oscilloscope.

maintain:

1. Keep the probe clean and dry.

2. If cleaning is needed, wipe it with a soft dry cloth instead of chemical cleaning.

3. When the probe is not in use, please put the probe into the package and place it in a cool, clean and dry place.

4. When transporting the probe, it must be placed in the packaging provided by our company to prevent shock.

5. Do not pull on the input and output wires to avoid excessive twisting, bending or knotting.