Digital noise detector noise meter decibel meter

This noise is counted as one designed to make noise engineering, quality control, health control and a variety of environmental sounds measurement, noise measurement applications such as factories, schools, offices, transportation routes, family, audio and other occasions. Compliance with IEC61672-1 ype2 standards. Product Features 1. The noise meter in line with IEC61672-1 Type2 standard 2. Maximum and minimum measurements and data logging 3.A and C weighting network selection 4.AC and DC analog output can be connected to a frequency analyzer or XY axis record Statistical analysis is done. 5. Built-in calibration check function 6.4 LCD screen with a resolution of 0.1dB 7. within 31.5Hz to 8 KHz range, the measurement range is 35dB to 130dB preparation and prevention preparation (1) loading the battery open the battery cover, and put on a 9V battery (2) to replace the battery when the battery voltage drops below the operating voltage, there 'BAT' sign, you should replace it with a new battery. Will have nothing to do additional noise in the case of a wind instrument, it must be installed on the windscreen of the microphone head, in order to prevent the acquisition of unwanted signal protection (1) wind blowing through the microphone. (2) In order to obtain a more precise The measurements can be used to open the microphone from the table status to be able to eliminate unwanted noise reflection (3) If the meter is not in use for a long time or operated under harsh environments, please calibrate the instrument before the operation (4) Do not high temperature or high humidity storage or use of the instrument (5) Keep microphone dry and avoid severe vibration (6) when not in use, remove the battery and the instrument in measurement (1) in a low-humidity environment to open the battery cover, fitted with a 9V battery (2) Turn on the power and select the desired response time and Weighting sound level frequency weighting. If the sound source is composed of short bursts of sound, or only a maximum gain of the sound, please set a fast response. If the measurement generally sound, set the slow gear. A - sound level frequency weighting for general noise level, C - sound level frequency weighting for measuring sound level of acoustic material specifications Applicable standards: IEC651type 2 Frequency range: 31.5Hz ~ 8KHz Measuring range: 35 ~ 130dB sound level frequency weighting: A and C Microphone: 1/2 inch polarized condenser microphone Calibration: at 1kHz sine wave, 94dB signal calibration Display: LCD digital display: 4 Resolution: 0.1dB value update: 0.5 seconds count Right: Rapid Response (125mS), slow reaction (. 1 sec) Range: Low Range: 35-100dB High Range: 65-130dB Accuracy: ± 1.5dB (at 94dB, 1kHz reference conditions) Dynamic Range: 65dB Alarm function: When the input exceeds the range will show "OVER" symbol max hold: maximum preservation AC output: 0.65 Vrms (every range channel) output resistance: about 600Ω (FS:. reach every level of the maximum) DC output: 10mV / dB, output resistance is about 100Ω Power supply: one 9V battery, 006P or IEC 6F22 or NEDA 1604. Battery life: at least 50 hours (alkaline batteries) Operating Temperature: 0 to 40 ℃ (32 到 104 ℉ ) Operating Humidity: 10 to 90% RH Storage temperature: -10 to 60 ℃ (14 到 140 ℉) Storage Humidity: 10 到 75% RH Dimensions: 245 (L) X64 (W) X31 (H) mm Weight: 255g (including battery) Packing noise meter * 1 9V battery * 1 canvas sponge pad * 1 * 1 * 1 Application box factories, schools, offices, transportation routes, family, audio and other Address: Huaihai Road, Xuzhou City, Jiangsu Province Fortune Building, 15th Floor, 29 1505-1507 Contact: Tian Tel: 18168780985 QQ: 2050626436