Instruction manual for 72-860A Sound Level Meter, which introduces the function and usage of the product
This manual describes the Tenma 72-860A sound level meter, its features, and safe operating practices. It includes safety information, a general description of the device, and detailed specifications such as frequency range, measurement range, and power requirements.
The guide also covers calibration methods (acoustic calibrator and internal oscillator), measurement preparation, RS‑232 communication setup, and software installation. Service, repair, and battery handling instructions are provided for field maintenance.
| Frequency range | 31.5 Hz ~ 8 kHz |
|---|---|
| Measuring level range | 35 dB ~ 130 dB |
| Frequency weighting | A/C |
| Microphone type | 1/2 inch Electret condenser microphone |
| Display resolution | 0.1 dB |
| Power supply | One 9 V battery (O06P or IEC 6F22 or NEDA 1604) |
| Power life | About 50 hours (alkaline cell) |
| Operating temperature | 20 °C ~ 40 °C |
| Operating humidity | 10 % ~ 75 % RH |
| Dimensions | 240 mm × 68 mm × 25 mm |
| Weight | 210 g (including battery) |
It is shown when the input level is out of the meter’s measurement range.
Press the Reset button to clear the maximum level display.
Baud rate 19200, parity none, data bits 8, stop bits 1.