How to properly maintain your Tektronix oscilloscope

I believe that for electronic engineers, the contribution of oscilloscopes is irreplaceable. Once there is a problem with the product, it is necessary to capture the waveform, capture the timing, and test the accurate value to help engineers analyze and process. Everything depends on the waveform. Tektronix oscilloscopes are the choice of most engineers. How should you maintain your Tektronix oscilloscope to make it have a longer life and maintain good performance for a long time? Antai Test Oscilloscope Maintenance Engineer Liu Gong recommends that you should pay attention to the following points:

1) Testing before use

1. Check whether the power cord of the oscilloscope is damaged;

2. The plug of the power cord and the wiring in the power strip must be tight and reliable to avoid electric shock or short circuit accidents during use;

3. Read the instructions carefully and make sure the settings before testing are done. Pay attention to the matching of the probe and impedance. The voltage connected to the probe must not exceed the maximum allowable input voltage of the oscilloscope.

2) Check grounding

Grounding can not only ensure the safety of operators and make the instrument work normally within a safe range, but also ensure the stability and reliability of the test waveform and reduce external interference.

3) Anti-static

When using the instrument, you must wear an anti-static wrist strap and follow the anti-static process.

IV) Daily maintenance (taking TDS3014B as an example)

1. Signal path compensation.

(It can correct DC errors caused by temperature changes or long-term drift. It needs to be compensated once every three weeks on average. It should be used after the oscilloscope is warmed up.)

2. After the oscilloscope is turned off, it cannot be turned on immediately. It needs more than ten seconds. After the test, the probe should be properly stored and the channel should be capped to prevent dust from entering.

3. When using the instrument, pay attention to ventilation and heat dissipation, avoid an environment that is too humid, keep it clean and dust-free, and remove dust from the instrument regularly.

5) Fault diagnosis

If you find a problem with the oscilloscope during use, you can perform the following tests to help determine whether the instrument is really faulty, because external interference or connection problems can cause faults:

1. Verify whether the square wave is normal

2. Check input impedance: measure 50 ohms and 1M ohms respectively

3. Self-examination:

Go to UTILITY, select Accessibility Page, and find the self-diagnosis