CF-4700A/CF-4700 Frequently Asked Questions

After initialization, we will set the measurement conditions.

Initialize => CCLD ON => Sound pressure calibration

1.Initialize

Touch ← and then touch ↑ initialize to return to the initial state.

2.CCLD ON

↑Home>Input>Input Control Connect the microphone and turn on CCLD

3. Sound pressure calibration

↑ Touch Home > Input > EU

Turn on CH1 EU. For Unit Name, touch Pa, EU/SP.

The cursor is for overall, and the 0dB Reference is 2E-05.
Touch the key-in (114 in this case) for the sound pressure of the acoustic calibration.
Touch it.

Output a sound from the acoustic calibration, turn AVG ON, and start.
It will stop at 5 seconds, so after that,Touch it.