S907E LCD display digital distortion meter is suitable for electronic manufacturing, audio and video laboratory for audio analysis instruments, can test the fundamental frequency of 310-450Hz and 850-1150Hz audio signals total harmonic distortion, no need to perform initial benchmark calibration, can be automatically read, in the 10Hz-100kHz range, can be used as a sensitive voltmeter, measure signal voltage or level (0.775V=0dB), in the 10Hz-2MHz range can be used as a frequency counter.
This manual describes the S907E LCD distortion instrument, which is suitable for electronic manufacturing and audio‑video laboratories. The device can automatically read distortion values without initial baseline calibration and offers multiple measurement functions such as distortion, voltage/level, and frequency measurement.
Key features include a wide frequency measurement range (20 Hz‑100 kHz), frequency counting up to 2 MHz, voltage measurement from 10 mV to 300 V RMS, and high accuracy with ±5 % full‑scale error. The LCD provides automatic and manual range selection for easy operation. This manual is written in Chinese.
| Fundamental frequency range | 310‑450 Hz, 850‑1150 Hz |
|---|---|
| Frequency measurement range | 20 Hz‑100 kHz |
| Frequency counting range | 10 Hz‑2 MHz |
| Voltage measurement range | 10 mV‑300 V RMS |
| Input sensitivity (10 Hz‑1.5 MHz) | < 30 mV |
| Input sensitivity (1.5 MHz‑2 MHz) | < 50 mV |
No, it does not require an initial baseline calibration and can read values automatically.
The instrument measures voltage from 10 mV up to 300 V RMS.