Tecnosystemi 11132680, User Manual

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Please read the following information carefully before using the meter. The Sound Level Meter has been designed to
measure sound level for various environments. It is used to detect noise, music level or sound engineering...
1.1 Precautions safety measures
Please use it according to the following usage. Environment conditions:
• Altitude: less than 2000 meters.
• Relatively humidity 80% max
• Operation temperature 0~40 °C
Maintenance & save:
Do not clear the meter using alcohol and impregnant. If you do not use it for a long time, please take out the battery
and place the instrument in a dry surrounding.
Safety symbols:
Meter is protected by double insulation
Comply with European Union’s 93/68/EEC
1.1.1 During use
1. Do not use the meter in a high temperature or wet place.
2. When you do not use for a long time, please take out batteries to avoid damaging the meter by electrolyte.
3. Auto-range measuring (30-120dB) is unfit for measuring instantaneous and impactive noise.
4. To measure sound level in a windy environment, please put windscreen on the microphone to avoid noise from
wind.
5. If battery symbol is on the screen, it indicates voltage is low and must replace battery. Suggest you to use alka-
line battery.
6. Do not measure when meter is vibrant.
7. After power off, to turn power on again, wait for two seconds.
1.2 Functions & Features
• Automatic ranging / manual ranging selection.
• Analog bar indicator.
• Frequency weighting A Type.
• Range display.
• Automatic shutdown / continuous working mode selection.
• Low battery voltage indication.
• Sound OVER or UNDER display.
• Software calibrating to insure high reliability.
• Good circuit designed to save power.