Summary: GCG1000 type dust concentration sensor is a kind of absorption, absorbing the domestic and foreign advanced technology of dust, used to swim in the dark room dust floating dust exposure light source, the scattering intensity is proportional to the dust concentration, the principle of the intensity of light will be scattered light is converted into electrical signals, and the relative quality of dust concentration is calculated, and then through the preset values of the parameters, can be directly calculated the mass concentration of dust. Through the LCD display and converted into frequency signal or current signal output. The dust concentration alarm value can be preset. When the measured dust concentration reaches this value, a warning signal can be immediately output to remind the staff to start corresponding dust removal measures in time. Product features: 1. The rated working current is small, which greatly reduces the burden of the sub-station power supply and can be installed farther away from the sub-station. The rated working current is small under the condition of rated sampling flow. 2. Wide input voltage range, suitable for all kinds of sub-stations underground coal mine, the instrument can work normally within the input voltage range of 12V ~ 24VDC(intrinsic safety power supply); 3. High measurement accuracy: a piecewise control algorithm is adopted to automatically calculate different proportional coefficients according to different concentrations. Meanwhile, the temperature compensation function is added to improve the measurement accuracy. 4, with automatic zero point calibration function, and can set the time of zero point drift calibration; 5. With the function of soft start mode, the impact of the instrument on the power supply is reduced. Technical parameters: 1. Measurement range: 0mg/m3 ~ 1000mg/m3 2. Relative measurement error: 10% 3. Sampling flow: 18L/min 4. Sampling flow error: plus or minus 2.5% 5. Over-limit alarm and output signal 12 + + 3V DC 6. Output frequency :(200 ~ 1000) Hz, pulse width greater than 0.3ms. 7. Output current :(4 ~ 20) mA 8. Working voltage: (12 ~ 24) V DC (intrinsic ampere), working current: no more than 170mA.
Summary: GCG1000 type dust concentration sensor is a kind of absorption, absorbing the domestic and foreign advanced technology of dust, used to swim in the dark room dust floating dust exposure light source, the scattering intensity is proportional to the dust concentration, the principle of the intensity of light will be scattered light is converted into electrical signals, and the relative quality of dust concentration is calculated, and then through the preset values of the parameters, can be directly calculated the mass concentration of dust. Through the LCD display and converted into frequency signal or current signal output. The dust concentration alarm value can be preset. When the measured dust concentration reaches this value, a warning signal can be immediately output to remind the staff to start corresponding dust removal measures in time.
