crwdns2933803:014crwdne2933803:0
crwdns2933797:0Arthur Shicrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Arthur Shi
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| - | [title] |
|---|---|
| + | [title] How to measure frequency |
| [* icon_caution] ***You'll be testing a live circuit.*** Be very careful not to touch any exposed circuitry. If there's a significant chance of exposure, cover the live circuit with insulating material or wear insulating protective equipment such as insulating gloves. | |
| [* icon_caution] Be careful as you position your probes, making sure they don't accidentally short anything. If possible, power off the circuit while you set up. | |
| [* black] Touch the probes across the AC source and make a measurement. | |
| [* icon_note] If you're measuring something that's electrically noisy (such as a compressor motor), you can toggle the ***Variable Frequency Controller (VFC) function*** to filter high frequency noise out. This will reduce the precision of the measurement. | |
| [* black] To toggle the VCF mode on/off while you're measuring AC frequency, hold the blue ***Select/VFC*** button for two seconds. |