Explosion-proof sound level meter use matters needing attention

Explosion-proof sound level meter is the most basic instrument in noise measurement. It is generally composed of a microphone, preamplifier, attenuator, amplifier, frequency weighting network, and effective value indication meter.

The explosion-proof sound level meter adopts advanced digital detection technology, which greatly improves the stability and reliability of the instrument. The sound level meter has the advantages of simple operation and convenient use; it has features such as large dynamic range, large LCD display, automatic measurement and storage of various data, and so on.

Explosion-proof sound level meter use matters needing attention

1. Precautions

1) Read the instructions before use to understand how to use the instrument and precautions.

2) The instrument should be kept away from high temperature, humidity, sewage, dust, and air or chemical gases containing hydrochloric acid or alkali.

3) Install the battery or external power supply. Note the polarity. Do not reverse. Do not remove the battery for a long period of time so as not to damage the instrument.

4) Do not disassemble the microphone to prevent it from throwing and place it properly when not in use.

5) Do not disassemble the instrument. If the instrument is not normal, it can be sent to the repair unit or the factory for inspection.

2. Calibration of sensitivity

To ensure the accuracy of the measurement, calibration must be performed before and after use.

Connect the sound level calibrator to the microphone, turn on the calibration power supply, read the value, and adjust the noise meter sensitivity potentiometer to complete the calibration.

3. Measurement method

During the measurement, the instrument should select the correct gear according to the situation. Both sides of the noise meter should be held flat on both sides. The microphone should point to the sound source under test. Extension cables and extension rods can also be used to reduce the noise meter appearance and the influence of the human body on the measurement. The location of the microphone should be determined according to the relevant regulations

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General
Model			FD20	FD25
Power Type			Diesel	Diesel
Load Capacity		kg	2000	2500
Load centre		mm	500	500
Tyre
Tyre			Pneumatic Tyre	Pneumatic Tyre
Front Tyre			7.00-12-12PR	7.00-12-12PR
Rear Tyre			6.00-9-10PR	6.00-9-10PR
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Fork Size	LÃ—WÃ—T	mm	107012040	107012040
Mast Tilt Angle	F/R	.	6/12	6/12
Mast Lowered Height		mm	2070	2070
Mast Extended Height(with backrest)		mm	4070	4070
Length to face of fork(Without fork)		mm	2590	2590
Overall Width		mm	1150	1150
Overhead Guard Height		mm	2070	2070

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