Description
HT157 is mobile integrating sound level meters Type (Class 1) which can be used to monitor the equivalent level of noise (Leq), measure Peak values, check soundproofing levels, acoustic pollution, etc.
In addition to the HT 155, the instrument allows noise`s real-time 1/1 OCT and 1/3 OCT spectral analysis with integral measuring.
a) Central frequency of 1/1 OCT analysis: 16Hz, 31.5Hz, 63Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, 16kHz
b) Central frequency of 1/3 OCT analysis: 12.5Hz, 16Hz, 20Hz, 25Hz, 31,5Hz, 490Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1kHz, 1.25kHz, 1.6kHz, 2kHz, 2.5kHz, 3.15kHz, 4kHz, 5kHz, 6.3kHz, 8kHz, 10kHz,12.5kHz, 16kHz
- Measurement range: 25 ÷ 143dB
- Integration Time : 1s ÷ 24h pre-defined or customized
- AC Output
- Microphone: pre-polarized condenser ½ " with pre-amplifier
- mini-USB Interface
- Internal memory: 64kBytes flash memory
- Data storage: max 128 groups / max 256 calibrations
- Statistical Analysis
- LCD Display (240x160pxl), with backlight
